Radioactive powder material collection assembly

Abstract

The radioactive powder material gathering assembly comprises a factory building, a storage tank, a transfer tank, a transfer tank rotating device, a storage tank translation trolley, a storage tank outer cover dismounting device, a storage tank inner cover opening and closing device, a transfer tank upper cover dismounting device and a lower pipeline butt joint device; the transfer tank rotating device is provided with a positioning station A for positioning the transfer tank; the storage tank translation trolley is provided with a plurality of positioning stations B for positioning the storage tank; the storage tank outer cover dismounting device is used for dismounting the outer protective cover of the storage tank; the storage tank inner cover opening and closing device is used for controlling the inner sealing cover A of the storage tank to be attached to or separated from the discharge port A; the transfer tank upper cover dismounting device is used for dismounting the upper sealing cover of the transfer tank; and the lower pipeline butt joint device is arranged between the transfer tank rotating device and the storage tank translation trolley. The present application is applied to an automatic radioactive powder material feeding system, and provides a necessary structural basis for realizing automatic feeding operation of UO2 powder material in a uranium conversion process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of uranium conversion related equipment, and particularly relates to a radioactive powder material collecting assembly. BACKGROUND

[0002] With the rapid development of nuclear power, the installed capacity is rapidly increasing, and higher requirements are put forward for the supply of nuclear fuel. Uranium ore is the main raw material for the preparation of nuclear fuel. In the entire preparation process of nuclear fuel, two steps of uranium purification and uranium conversion will be experienced. Uranium purification refers to the production process from uranium ore concentrate to refined UO2. Uranium conversion refers to the production process from refined UO2 to UF6.

[0003] The UO2 powder produced in the uranium purification step is stored in a special sealed container for use. The sealed container is provided with a closable or open discharge port at the lower end, and the capacity and volume are designed to be small to facilitate transportation or storage. When the uranium conversion step is needed, the UO2 powder in the multiple sealed containers needs to be discharged into the intermediate storage bin, which is called the UO2 feeding operation.

[0004] At present, the UO2 feeding operation is carried out in a three-story plant. The first floor of the plant stores multiple sealed containers containing UO2 powder, the second floor of the plant is provided with hydrogen fluoride equipment (for processing UO2) and an intermediate storage bin which are sequentially connected, and the third floor of the plant is provided with a discharge port connected to the intermediate storage bin, which is used to receive the UO2 powder poured out from the sealed container. When performing the UO2 feeding operation, the multiple sealed containers need to be hoisted from the first floor of the plant to the third floor of the plant by manually operating a crane, and then the sealed containers are sequentially connected to the discharge port for pouring.

[0005] The above UO2 feeding operation has the following disadvantages:

[0006] 1. In one working cycle of the feeding operation, 3-4 sealed containers of materials need to be fed into the intermediate storage bin. In this process, the sealed containers need to be transported from the first floor of the plant to the third floor of the plant, and after the feeding is completed, the empty sealed containers are transported back to the first floor of the plant. The operations such as opening the cover (i.e. opening the discharge port at the lower end of the sealed container), docking (i.e. docking the discharge port at the lower end of the sealed container with the discharge port on the third floor of the plant), and closing the cover (i.e. closing the discharge port at the lower end of the sealed container) of each sealed container need to be operated by the operator on the third floor of the plant, which is complicated and low in efficiency.

[0007] 2. In the process of the feeding operation, the UO2 powder is easy to leak out from the discharge port of the sealed container and the discharge port on the third floor of the plant, and dust is generated. Since the UO2 powder is radioactive, it will damage the health of the operators on the third floor of the plant.

[0008] 3、On the one hand, in order to avoid UO2 powder material diffusion to the outside of the plant to pollute the environment, the plant has a certain airtightness to achieve isolation from the outside, on the other hand, the second floor of the plant is provided with a hydrogen fluoride device with very high operating temperature, which increases the heat load in the plant. Both of the above factors result in high ambient temperature in the plant. Especially in hot summer, the indoor temperature of the third floor of the plant is as high as 50-60℃, which leads to very poor working environment for the operators located on the third floor of the plant. SUMMARY

[0009] The purpose of the present application is to overcome the shortcomings of the prior art, and to provide a radioactive powder material collection assembly which is applied to an automatic radioactive powder material feeding system, and solves the problems of current UO2 feeding operation steps being complicated, low efficiency, time-consuming and laborious, radiation risk and poor working environment.

[0010] The technical scheme of the present application is: a radioactive powder material collection assembly, comprising a plant, a storage tank, a transfer tank, a transfer tank rotating device, a storage tank translation trolley, a storage tank outer cover dismounting device, a storage tank inner cover opening and closing device, a transfer tank upper cover dismounting device and a lower pipeline butt joint device;

[0011] The plant is provided with a first floor space, and an overhead sliding platform is installed in the first floor space, and a horizontal track A is arranged on the overhead sliding platform;

[0012] The storage tank is internally provided with an inner cavity A, and a discharge port A is arranged at the bottom of the storage tank, and an inner sealing cover A and an outer protective cover are arranged on the inner side and the outer side of the discharge port A of the storage tank respectively;

[0013] The transfer tank is internally provided with an inner cavity B with a volume several times that of the inner cavity A, and the top of the transfer tank is provided with a feeding port, and a detachable upper sealing cover is arranged on the feeding port, and a discharge port B is arranged at the bottom of the transfer tank, and an inner sealing cover B is arranged on the inner side of the discharge port B of the transfer tank;

[0014] The transfer tank rotating device is arranged directly below the overhead sliding platform, and a positioning station A for positioning the transfer tank is arranged on the transfer tank rotating device;

[0015] The storage tank translation trolley is movably arranged on the horizontal track A, and a plurality of positioning stations B for positioning the storage tank are arranged on the storage tank translation trolley;

[0016] The storage tank outer cover dismounting device is arranged directly below the overhead sliding platform, and is used for dismounting the outer protective cover of the storage tank positioned in the positioning station B;

[0017] The storage tank inner cover opening and closing device is installed on the overhead sliding platform, and is used for controlling the movement of the inner sealing cover A of the storage tank positioned in the positioning station B, so as to be attached to or separated from the discharge port A;

[0018] The transfer tank upper cover dismounting device is installed on the overhead sliding platform, and is used for dismounting the upper sealing cover of the transfer tank positioned in the positioning station A.

[0019] The lower pipeline docking device is arranged between the transfer tank rotating device and the storage tank translation trolley, and is used for connecting the storage tank in the setting station B and the transfer tank in the setting station A.

[0020] The further technical scheme of the present application is: the storage tank comprises a tank body A, a lead screw A, a nut A, an operating disc A, an inner sleeve A, an outer sleeve A, an extension rod A, an inner sealing cover A and an outer protective cover; four legs are evenly welded on the lower end of the tank body A in a ring shape, the inner cavity A is arranged in the tank body A, the discharge port A is arranged at the bottom of the tank body A, a ring-shaped step is arranged on the outer wall of the lower end of the tank body A close to the discharge port A, the ring-shaped upper pressing plate is fixedly installed on the ring-shaped step of the tank body A and extends outward in the radial direction of the storage tank; the lead screw A is movably installed in the inner cavity A of the tank body A and is arranged at the center of the inner cavity A of the tank body A in the axial direction of the tank body A, the operating section, the light rod section and the threaded rod section are sequentially arranged on the lead screw A from top to bottom, the operating section of the lead screw A extends out of the upper end of the tank body A, the light rod section of the lead screw A is rotatably connected with the tank body A through the tapered roller bearing; the nut A is threadedly connected with the threaded rod section of the lead screw A, and the guide groove A is arranged on the outer wall surface of the nut A; the operating disc A is fixedly installed on the operating section of the lead screw A, and a plurality of insertion holes A are evenly arranged on the operating disc A in a ring shape around the lead screw A; the inner sleeve A is fixedly connected with the nut A and contains the threaded rod section of the lead screw A in the inner hole thereof; the outer sleeve A is fixedly installed on the tank body A on the outer side and is movably sleeved with the inner sleeve A on the inner side through the inner hole and the guide rib; the upper end of the extension rod A is fixedly connected with the lower end of the inner sleeve A; the inner sealing cover A is in a conical ring shape and is fixedly installed on the lower end of the extension rod A, and is used for opening or closing the discharge port A at the bottom of the tank body A; the outer protective cover comprises an upper seat body, a lower seat body, a spring and an L-shaped rocker; the upper seat body comprises an upper sealing disc, an angle connecting plate and a lower adsorption plate which are sequentially fixedly connected from top to bottom; the upper end surface of the upper sealing disc is used for abutting or separating with the upper pressing plate of the storage tank, thereby opening or closing the discharge port A of the storage tank, the annular boss X for accommodating the spring is arranged at the center area of the lower end surface of the upper sealing disc, a plurality of angle connecting plates are evenly arranged in a ring shape between the upper sealing disc and the lower adsorption plate around the annular boss X, the upper end of the angle connecting plate is welded with the lower end surface of the upper sealing disc, the lower end of the angle connecting plate is welded with the upper end surface of the lower adsorption plate, and the central hole A for the lower seat body to pass through is arranged at the center of the lower adsorption plate; the lower seat body comprises a lower pushing plate and an upper annular plate which are sequentially fixedly connected from bottom to top; the annular boss Y for accommodating the spring is arranged at the center area of the upper end surface of the lower pushing plate, a plurality of guide grooves X are evenly arranged in a ring shape around the annular boss Y on the upper end surface of the lower pushing plate, and the upper annular plate is arranged at the upper end of the annular boss Y and extends outward in the radial direction of the annular boss Y; the ring gap is arranged between the outer side of the annular boss Y, the lower end of the upper annular plate and the upper end of the lower pushing plate; the lower seat body is movably inserted into the lower end opening of the annular boss X of the upper seat body through the upper end opening of the annular boss Y, so that the annular boss X of the upper seat body and the annular boss Y of the lower seat body are in internal communication to form a spring accommodating cavity.The upper end of the L-shaped rocker is provided with a hook part, the lower end is provided with a roller A, and the middle part is provided with a turning part, the turning part of the L-shaped rocker is hinged on the lower end of the angle connecting plate, the roller A of the L-shaped rocker is limited in the ring open interval, and the lower end of the roller A is embedded in the guide groove X; the spring is arranged in the spring accommodating cavity, and the spring is forced to move away from the upper seat body in the direction by the elastic force, thereby driving the L-shaped rocker to rotate around the hinge to the inside of the storage tank, so that the hook part of the L-shaped rocker hooks the upper pressing plate of the storage tank; when the external force pushes the lower seat body to move in the direction close to the upper seat body, the L-shaped rocker is driven to rotate around the hinge to the outside of the storage tank, so that the hook part of the L-shaped rocker is separated from the upper pressing plate of the storage tank.

[0021] Further technical solutions of the present application are: the storage tank translation trolley comprises a trolley body A and an electric push rod A; the lower end of the trolley body A is provided with a roller B, and the upper end of the trolley body A is provided with a plurality of guide rollers arranged horizontally, all the guide rollers jointly enclose a plurality of mouth-shaped areas, and the mouth-shaped area is the placement station B; the trolley body A is provided with a blanking hole A in each placement station B; the trolley body A is installed on the horizontal rail A by rolling through the roller B; the cylinder body of the electric push rod A is fixedly installed on the horizontal rail A, the piston rod of the electric push rod A is fixedly connected with the trolley body A, and the piston rod of the electric push rod A drives the trolley body A to move horizontally and reciprocally along the horizontal rail A when the piston rod is retracted and extended; when the storage tank is placed in any placement station B of the storage tank translation trolley, the discharge port A of the storage tank is opposite to the blanking hole A in the placement station B; when the storage tank is placed in the target placement station B on the storage tank translation trolley, the guide rollers located at the four sides of the target placement station B are in contact with the four legs at the lower end of the storage tank, so as to correct and adjust the posture of the storage tank, thereby limiting the storage tank in the placement station B; when the storage tank translation trolley moves with the storage tank placed in the placement station B, there are a third docking position, a fourth docking position and a fifth docking position in the movement path of the storage tank.

[0022] The further technical scheme of the present application is: the storage tank outer cover dismounting device comprises an electric push rod B, a bracket, a ring-shaped electromagnet and a traction electromagnet; the cylinder body of the electric push rod B is directly or indirectly fixedly installed on the ground of a layer of space, and the piston rod of the electric push rod B vertically extends upwards; the bracket is directly or indirectly fixedly connected to the piston rod of the electric push rod B, the top of the bracket is provided with a central hole B, and the bracket is provided with a placement cavity which is communicated with the central hole B; the ring-shaped electromagnet is fixedly installed on the upper end of the bracket, the central hole C is arranged at the center of the ring-shaped electromagnet, and the central hole B of the bracket is contained in the central hole C of the ring-shaped electromagnet; the lower end of the traction electromagnet is fixedly installed in the placement cavity of the bracket, the upper end of the traction electromagnet extends out of the central hole B of the bracket and is located in the central hole C of the ring-shaped electromagnet, and the upper end of the traction electromagnet moves vertically and linearly, so as to extend to the upper end of the ring-shaped electromagnet or retract into the central hole C of the ring-shaped electromagnet; when the storage tank with the outer protective cover moves to the fourth docking position, and the storage tank outer cover dismounting device does not attract the outer protective cover, the lower suction plate of the outer protective cover is located directly above the ring-shaped electromagnet, and the lower push plate of the outer protective cover is located directly above the traction electromagnet; when the storage tank without the outer protective cover moves to the fourth docking position, and the storage tank outer cover dismounting device attracts the outer protective cover, the lower suction plate of the outer protective cover is magnetically attracted to the ring-shaped electromagnet, the lower push plate of the outer protective cover is magnetically attracted to the traction electromagnet, and the upper sealing disc of the outer protective cover is located directly below the upper pressing plate of the storage tank.

[0023] The further technical scheme of the present application is: the storage tank inner cover opening and closing device comprises a gantry A, a lifting driving device A, a rotary driving motor B and a docking disc; the gantry A is directly or indirectly fixedly installed on the overhead sliding table; the lifting driving device A is fixedly installed on the gantry A; the rotary driving motor B is fixedly installed on the lifting driving device A and is driven by the lifting driving device A to vertically move up and down; the docking disc is fixedly connected to the lower end of the rotary driving motor B and is driven by the rotary driving motor B to horizontally rotate, and the lower end of the docking disc is provided with a plurality of finger rods for being inserted into the insertion hole A of the operation disc A of the storage tank; when the storage tank moves to the third docking position, the operation disc A of the storage tank is located directly below the docking disc of the storage tank inner cover opening and closing device.

[0024] Further technical solutions of the present application are: the transfer tank includes a tank body B, an upper sealing cover, a lead screw B, a nut B, an operation disc B, an inner sleeve B, an outer sleeve B, an extension rod B and an inner sealing cover B; the lower end of the tank body B is provided with a guide section in the shape of a regular quadrangular prism with a circular arc transition at the edge, the inside of the tank body B is provided with the inner cavity B, the bottom of the tank body B is provided with the discharge port B, and the top of the tank body B is provided with a plurality of feeding ports which are evenly distributed in a ring shape around the center line of the tank body B; the upper sealing cover is detachably installed on each feeding port; the lead screw B is movably installed in the inner cavity B of the tank body B, and the axis line thereof is arranged in coincidence with the center line of the tank body B; the lead screw B is sequentially provided with an operation section, a light rod section and a threaded rod section from top to bottom, the operation section of the lead screw B extends out of the upper end of the tank body B, and the light rod section of the lead screw B is rotatably connected with the tank body B through a tapered roller bearing; the nut B is threadedly connected with the threaded rod section of the lead screw B, and is provided with a guide groove B on the outer side wall surface; the operation disc B is fixedly installed on the operation section of the lead screw B, and is provided with a plurality of ring-shaped insertion holes B which are evenly distributed around the lead screw B; the inner sleeve B is fixedly connected with the nut B and contains the threaded rod section of the lead screw B; the outer sleeve B is sleeved outside the inner sleeve B, is provided with a guide strip on the inner side, is fixedly installed on the tank body B on the outer side, and is slidably matched with the guide groove B of the nut B through the guide strip on the inner side; the upper end of the extension rod B is fixedly connected with the lower end of the inner sleeve B; the inner sealing cover B is in the shape of a conical ring, is fixedly connected with the lower end of the extension rod B, and is used for opening or closing the discharge port B at the bottom of the tank body B.

[0025] The material collection assembly further comprises a negative pressure dust removal device; the negative pressure dust removal device comprises filter units, branch pipes, a main pipe, hoses and a negative pressure fan; a plurality of filter units are evenly distributed in a ring shape on the top of the tank body B of the transfer tank, the filter units are provided with filter elements for filtering radioactive dust, and the two ends of the filter units are respectively air inlet ends and air outlet ends, the air inlet ends of the filter units extend into the inner cavity B of the transfer tank; the number of the filter units is consistent with the number of the feeding ports, and a filter unit is arranged at the middle position between every two adjacent feeding ports; the main pipe is provided with a main air outlet and a plurality of air inlets, the number of the air inlets is consistent with the number of the filter units, the main air outlet is provided with a ball valve for controlling the on-off of airflow and a quick pipe joint for connecting the hoses; the number of the branch pipes is consistent with the number of the filter units, one end of each branch pipe is in communication with the air outlet end of the corresponding filter unit, and the other end of the branch pipe is in communication with the corresponding air inlet on the main pipe; one end of each hose is detachably connected with the quick pipe joint on the main air outlet of the main pipe, and the other end is detachably connected with the air inlet end of the negative pressure fan, and the air outlet end of the negative pressure fan is in communication with the atmosphere.

[0026] The further technical scheme of the present application is: the transfer tank comprises a tank body B, an upper sealing cover, a screw rod B, a nut B, an operation disc B, an inner sleeve B, an outer sleeve B, an extension rod B, an inner sealing cover B and a vibration motor; the lower end of the tank body B is provided with a guide section in the shape of a regular quadrangular prism with a circular arc transition at the edge, the inside of the tank body B is provided with the inner cavity B, the bottom of the tank body B is provided with the discharge port B, and the top of the tank body B is provided with only one feeding port; the upper sealing cover is detachably installed on the feeding port; the screw rod B is movably installed in the inner cavity B of the tank body B, the axis line of the screw rod B is arranged in coincidence with the center line of the tank body B, the screw rod B is sequentially provided with an operation section, a light rod section and a threaded rod section from top to bottom, the operation section of the screw rod B extends out of the upper end of the tank body B, the light rod section of the screw rod B is rotatably connected with the tank body B through a tapered roller bearing; the nut B is threadedly connected with the threaded rod section of the screw rod B, and the nut B is provided with a guide groove B on the outer side wall surface; the operation disc B is fixedly installed on the operation section of the screw rod B, and is provided with a plurality of ring-shaped and uniformly distributed insertion holes B around the screw rod B; the inner sleeve B is fixedly connected with the nut B and contains the threaded rod section of the screw rod B; the outer sleeve B is sleeved outside the inner sleeve B, is provided with a guide strip on the inner side, is fixedly installed on the tank body B on the outer side, and is slidably matched with the guide groove B of the nut B through the guide strip on the inner side; the upper end of the extension rod B is fixedly connected with the lower end of the inner sleeve B; the inner sealing cover B is in the shape of a conical ring, is fixedly connected with the lower end of the extension rod B, and is used for opening or closing the discharge port B at the bottom of the tank body B; the vibration motor is fixedly installed on the upper end side wall of the tank body B.

[0027] The material collecting assembly further comprises a negative pressure dust removal device; the negative pressure dust removal device comprises filter units, branch pipes, a main pipe, hoses and a negative pressure fan; a plurality of filter units are uniformly distributed around the feeding port on the top of the tank body B of the transfer tank, the filter units are provided with filter elements for filtering radioactive dust, and the two ends of the filter units are respectively air inlet ends and air outlet ends; the air inlet ends of the filter units extend into the inner cavity B of the transfer tank; the main pipe is provided with a main air outlet and a plurality of air inlets, the number of the air inlets is consistent with the number of the filter units, and the main air outlet is provided with a ball valve for controlling the on-off of airflow; the number of the branch pipes is consistent with the number of the filter units, one end of each branch pipe is in communication with the air outlet end of the corresponding filter unit, and the other end of each branch pipe is in communication with the corresponding air inlet on the main pipe; one end of each hose is detachably connected with the main air outlet of the main pipe through a quick pipe joint, and the other end of each hose is detachably connected with the air inlet end of the negative pressure fan, and the air outlet end of the negative pressure fan is in communication with the atmosphere.

[0028] The further technical scheme of the present application is: the rotating device of the transfer tank comprises a lower base, a rotating drive motor A, an upper turntable, a limiting frame and first guide rollers; the lower base is directly or indirectly fixedly installed on the ground of a floor; the rotating drive motor A is fixedly installed on the lower base; the upper turntable is fixedly installed on the upper end of the rotating drive motor A and rotates horizontally under the drive of the rotating drive motor A; a plurality of rollers are arranged in parallel and horizontally on the upper end of the upper turntable; the rollers are arranged in three parallel columns on the upper end of the upper turntable; the rollers in the middle column are non-electrically driven rollers; the rollers in the two side columns are electrically driven rollers; a rolling conveying surface A is formed above all the rollers; one end of the conveying direction of the rolling conveying surface A is an inlet and outlet A; the limiting frame is fixedly installed on the upper turntable and located at the other end of the conveying direction of the rolling conveying surface A; a limiting electromagnet is embeddedly installed on the limiting frame; two columns of first guide rollers are vertically arranged and rotatably installed on the upper turntable and located at the two sides of the conveying direction of the rolling conveying surface A; each column of first guide rollers comprises a plurality of first guide rollers which are vertically arranged and arranged in a horizontal column; the two columns of first guide rollers and the limiting frame jointly form the placement station A; when the transfer tank enters the rolling conveying surface A through the inlet and outlet A, the two columns of first guide rollers respectively contact two surfaces on the guide section of the transfer tank, and the limiting electromagnet on the limiting frame is used for adsorbing one surface on the guide section of the transfer tank, so as to limit the transfer tank in the placement station A; when the rotating device of the transfer tank rotates with the transfer tank placed in the placement station A, the first and second butt joint positions exist in the rotating path of the upper sealing cover of the transfer tank.

[0029] The further technical scheme of the present application is: the upper cover dismounting and mounting device of the transfer tank comprises a lifting drive device B, a first extension rod and an electromagnetic chuck; the lifting drive device B is directly or indirectly fixedly installed on the overhead sliding table; the upper end of the first extension rod is fixedly connected with the lifting drive device B and vertically moves up and down under the drive of the lifting drive device B; the electromagnetic chuck is fixedly connected to the lower end of the first extension rod; when the transfer tank rotates to the first butt joint position, the upper sealing cover of the transfer tank is directly below the electromagnetic chuck of the upper cover dismounting and mounting device of the transfer tank, so as to facilitate the upper cover dismounting and mounting device of the transfer tank to dismount or mount the upper sealing cover of the transfer tank.

[0030] A further technical solution of the present application is: the lower pipeline butt joint device comprises a support A, a middle pipeline, an upper movable pipeline, a lower movable pipeline, a linear motor A, a linear motor B, a connecting rod A and a connecting rod B; the support A is fixedly installed on the overhead sliding table; the middle pipeline is fixedly installed on the support A; the upper movable pipeline and the lower movable pipeline are movably inserted into the upper end inner wall and the lower end outer wall of the middle pipeline respectively, and extend out from the upper end and the lower end of the middle pipeline respectively, two third hinge parts are arranged on the upper end outer wall of the upper movable pipeline in opposition, and two fourth hinge parts are arranged on the lower end outer wall of the lower movable pipeline in opposition; the linear motor A comprises a base A, a guide rail A and a sliding block A, the base A is fixedly installed on the upper end of the support A, the guide rail A is horizontally installed on the base A, and the sliding block A is slidably installed on the guide rail A; the number of the linear motor A is two, and the two linear motors A are symmetrically arranged relative to the middle pipeline; the linear motor B comprises a base B, a guide rail B and a sliding block B, the base B is fixedly installed on the lower end of the support A, the guide rail B is horizontally installed on the base B, and the sliding block B is slidably installed on the guide rail B; the number of the linear motor B is two, and the two linear motors B are symmetrically arranged relative to the middle pipeline; two connecting rods A are distributed on the two sides of the middle pipeline, one end of each of the two connecting rods A is hingedly connected to the sliding block A of the two linear motors A respectively, and the other end of each of the two connecting rods A is hingedly connected to the two third hinge parts of the upper movable pipeline respectively; two connecting rods B are distributed on the two sides of the middle pipeline, one end of each of the two connecting rods B is hingedly connected to the sliding block B of the two linear motors B respectively, and the other end of each of the two connecting rods B is hingedly connected to the two fourth hinge parts of the lower movable pipeline respectively; when the transfer tank is rotated to the second butt joint position, the feeding port of the transfer tank is located directly below the lower movable pipeline of the lower pipeline butt joint device, so that the lower pipeline butt joint device butt joints the transfer tank; when the storage tank is moved to the fifth butt joint position, the discharging port A of the storage tank is located directly above the upper movable pipeline of the lower pipeline butt joint device, so that the lower pipeline butt joint device butt joints the storage tank.

[0031] Compared with the prior art, the present application has the following advantages:

[0032] It is applied to the automatic feeding system of radioactive powder materials, serves as an important component of the automatic feeding system of radioactive powder materials, and provides a necessary structural basis for realizing automatic feeding operation of UO2 powder materials in a uranium conversion process.

[0033] The storage tank is provided with two covers, i.e., an inner cover (inner sealing cover A) and an outer cover (outer protective cover), and can fully meet the needs of sealing storage, automatic feeding, automatic opening and closing of the cover, and transportation safety of UO2 powder materials in the tank.

[0034] The inner cover mainly plays a role of sealing and preventing leakage, and the operation disc A at the upper end of the storage tank can control the lifting movement of the inner cover, thereby realizing the opening and closing of the discharge port A of the storage tank. On the one hand, the operation disc A for controlling the opening and closing of the inner cover is open at the upper end of the storage tank, which is convenient for the mechanical hand to touch and operate to realize automatic feeding. On the other hand, the gradually expanding annular gap formed when the inner cover is opened makes the material fall uniformly and controllably, avoiding a large amount of dust generated by pouring.

[0035] The outer cover mainly plays a role of meeting the needs of automatic feeding and ensuring transportation safety. The structure of the outer cover is adapted to the structure of the storage tank outer cover dismounting device, and the outer cover is dismounted or mounted from the discharge port A of the storage tank through the storage tank outer cover dismounting device, without manual dismounting or mounting. In addition, when the outer cover is mounted on the discharge port A of the storage tank, it cannot be dismounted without damage by using common hardware tools, and can only be dismounted by using the storage tank outer cover dismounting device, thereby ensuring that the storage tank containing UO2 powder is in a protected (or locked) state during transportation.

[0036] 3.1 In example 2, on the one hand, the top of the transfer tank is provided with a plurality of feed ports arranged in a ring shape, and on the other hand, in the material gathering link (corresponding to step S03 of the feeding operation), each storage tank is respectively connected to a specific feed port on the transfer tank for feeding, thereby forming a plurality of "hills" in the transfer tank, which are arranged in a ring shape and interfere with each other, effectively reducing the undulating height of the UO2 powder after accumulation, and helping to fully utilize the internal space of the transfer tank, so that the volume of the transfer tank can be designed to be relatively smaller, thereby reducing the manufacturing cost of the transfer tank and facilitating transportation and management.

[0037] 3.2 In example 1, on the one hand, the top of the transfer tank is provided with only one feed port, and a vibration motor is arranged on the side wall of the transfer tank, and on the other hand, in the material gathering link (corresponding to step S03 of the feeding operation), each storage tank is connected to the only feed port on the transfer tank for feeding. The transfer tank does not need to be rotated to adjust the posture when connected to different storage tanks, and the connection difficulty and control difficulty are greatly reduced. The arrangement of the vibration motor can avoid the formation of "hills" in the transfer tank due to the accumulation of UO2 powder, effectively reducing the undulating height of the UO2 powder after accumulation, and helping to fully utilize the internal space of the transfer tank, so that the volume of the transfer tank can be designed to be relatively smaller, thereby reducing the manufacturing cost of the transfer tank and facilitating transportation and management.

[0038] 4. The negative pressure dust removal device is used to suppress the dust raising in the transfer tank, avoid the UO2 powder from the feeding port of the transfer tank to float out and cause radioactive pollution to the external environment. In the embodiment 1, the filter units of the negative pressure dust removal device are annularly and uniformly distributed on the top of the transfer tank, and in the embodiment 2, the filter units of the negative pressure dust removal device are spaced and dispersedly arranged on the top of the transfer tank. The negative pressure fan is started to form the multi-point, small-flow and small-range air extraction effect at the air inlet of all the filter units, so as to disperse the total air extraction flow to the air inlet of each filter unit, on the one hand, the dust raising is effectively suppressed, and on the other hand, the excessive UO2 powder is avoided to be sucked.

[0039] The radioactive powder material automatic feeding system has the following advantages:

[0040] 1. On the basis of the traditional feeding process (a plurality of sealed containers are sequentially transported from the first floor of the plant to the third floor of the plant for feeding), the feeding process is optimized (the materials in a plurality of storage tanks are collected in a transfer tank, and the transfer tank is transported to the third floor of the plant for one-time feeding), the automatic feeding operation of the UO2 powder material in the uranium conversion process is realized, and the efficiency of the feeding operation is significantly improved.

[0041] 2. The optimized feeding process can be generally divided into two steps: a plurality of small tank materials are collected in a transfer tank; and the transfer tank is transported to the third floor of the plant for one-time feeding.

[0042] Among them, the first step is the most complex part of the whole feeding process, which needs the linkage cooperation of a plurality of components, and the automatic control design difficulty is relatively high, so it is set in the first floor of the plant with a relatively suitable environment, which is convenient for the operator to control and manage;

[0043] Among them, the second step is a relatively simple part of the whole feeding process, which involves relatively fewer components for linkage cooperation, and the automatic control design difficulty is relatively low, so it is set in the third floor of the plant, so that the third floor of the plant with a relatively harsh environment does not need to be configured with an operator, which reduces the working intensity of the operator, avoids the radiation damage of the operator caused by the dust raising, and in a working cycle of the feeding operation, the third floor of the plant only experiences one input and one output of a transfer tank, the number of actions of each component is relatively small, and the probability of failure and error is relatively low.

[0044] 3. In the material gathering link (corresponding to the S03 step of the feeding operation), the moving path of the storage tank is a straight reciprocating movement, the movement path of the transfer tank is a fixed-point rotation, and the moving path of the storage tank and the moving path of the transfer tank are arranged in a high-low staggered manner in space; the storage tank performs the operations of disassembling the outer protective cover and feeding the powder material at both ends of its moving path, and the transfer tank performs the operations of docking the storage tank or disassembling the upper sealing cover when it is rotated to a specific angle; the movement route, action mode and spatial staggered arrangement of the storage tank and the transfer tank make the material gathering link simple and efficient, with no redundant and ineffective movement / action.

[0045] The application will be further described in conjunction with the drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 It is a structural schematic diagram of the application;

[0047] Figure 2 It is a structural schematic diagram and installation position schematic diagram of the inner cover opening and closing device of the storage tank, the upper cover disassembling device of the transfer tank, and the lower pipeline docking device;

[0048] Figure 3 It is an enlarged view of part A of Figure 2

[0049] Figure 4 It is an enlarged view of part B of Figure 2

[0050] Figure 5 It is an enlarged view of part C of Figure 2

[0051] Figure 6 It is a state diagram when the outer cover disassembling device of the storage tank removes the outer protective cover;

[0052] Figure 7 It is a state diagram when the outer cover disassembling device of the storage tank installs the outer protective cover;

[0053] Figure 8 It is a structural schematic diagram and installation position schematic diagram of the translation trolley of the storage tank;

[0054] Figure 9 It is a structural schematic diagram of the rotation device of the transfer tank;

[0055] Figure 10 It is a structural schematic diagram of the lower pipeline docking device;

[0056] Figure 11 It is a structural schematic diagram of the factory building;

[0057] Figure 12 It is an appearance diagram of the storage tank;

[0058] Figure 13 It is an appearance diagram of the storage tank;​​​Figure 12 Enlarged view of D in FIG. 1;

[0059] Figure 14 Internal structure of the storage tank;

[0060] Figure 15 Enlarged view of E in FIG. 1; Figure 14

[0061] Figure 16 Sectional view of F-F in FIG. 1; Figure 14

[0062] Assembly relationship diagram of the partial components of the transfer tank and the negative pressure dust removal device in Example 1; Figure 17

[0063] Internal structure of the transfer tank in Example 1; Figure 18

[0064] Enlarged view of H in FIG. 1; Figure 19 Figure 18 Enlarged view of I in FIG. 1;

[0065] Figure 20 Figure 18 Assembly relationship diagram of the partial components of the transfer tank and the negative pressure dust removal device in Example 2;

[0066] Figure 21 Structure diagram of the automatic radioactive powder feeding system;

[0067] Figure 22 Structure diagram of the feeding assembly;

[0068] Figure 23 Structure diagram of the feeding assembly;

[0069] Figure 24 Enlarged view of G in FIG. 1; Figure 23

[0070] Structure diagram of the upper pipe butt joint device; Figure 25

[0071] Structure diagram of the transfer tank translation trolley; Figure 26

[0072] Assembly relationship diagram of the partial components of the transfer tank translation trolley. Figure 27 Description:

[0073] The ground of the second floor space and the transfer tank are omitted in FIG. 1 to avoid the components in the first floor space being blocked. Figure 22 The operation panel A in FIG. 1 is omitted. Figure 16 The horizontal rail A in FIG. 1 is omitted. Figure 2

[0074] ​​​​Legend: One layer space 11; Two layer space 12; Three layer space 13; Overhead sliding platform 14; Horizontal track A 15; Intermediate storage bin 16; Horizontal track B 17; Transfer elevator 18; Lower opening 181; Upper opening 182; Tank body A 21; Inner cavity A 211; Discharge port A 212; Annular step 213; Leg 214; Upper pressing plate 215; Screw rod A 22; Nut A 23; Operating disc A 24; Jacking hole A 241; Inner sleeve A 25; Outer sleeve A 26; Guide edge 261; Extension rod A 27; Inner sealing cover A 28; Upper seat body 292; Upper sealing disc 2921; Angle connecting plate 2922; Lower adsorption plate 2923; Annular boss X 2924; Lower seat body 293; Lower pushing plate 2931; Upper annular plate 2932; Annular boss Y 2933; Annular open interval 2934; Spring accommodating cavity 2935; L-shaped rocker 294; Hook portion 2941; Roller A 2942; Turning portion 2943; Spring 295; Tank body B 31; Inner cavity B 311; Discharge port B 312; Feed port 313; Guide section 314; Upper sealing cover 32; Screw rod B 33; Nut B 34; Operating disc B 35; Jacking hole B 351; Inner sleeve B 36; Outer sleeve B 37; Guide strip 371; Extension rod B 38; Inner sealing cover B 39; Vibration motor 30; Lower base 411; Rotary drive motor A 412; Upper turntable 413; Limiting rack 414; Limiting electromagnet 4141; First guide roller 415; Inlet and outlet A 416; Accommodating station A 417; Vehicle body A 421; Roller B 422; Accommodating station B 423; Material dropping hole A 424; Electric push rod A 425; Electric push rod B 431; Bracket 432; Center hole B 4321; Electromagnet accommodating cavity 4322; Annular electromagnet 433; Center hole C 4331; Traction electromagnet 434; Gantry A 441; Lifting drive device A 442; Rotary drive motor B 443; Butt joint disc 444; Finger lever 4441; Lifting drive device B 451; First extension rod 452; Electromagnetic chuck 453; Bracket A 461; Middle pipeline 462; Upper movable pipeline 463; Lower movable pipeline 464; Linear motor A 465; Base A 4651; Guide rail A 4652; Slide block A 4653; Linear motor B 466; Base B 4661; Guide rail B 4662; Slide block B 4663; Connecting rod A 467; Connecting rod B 468; Filtering unit 471; Main pipe 472; Branch pipe 473; Hose 474; Negative pressure fan 475; Vehicle body B 511; Power wheel B 512; Inlet and outlet B 513; Material dropping hole B 514; Second guide roller 515; Front limiting plate 516; Front air cylinder 517; Rear limiting plate 518; Rear air cylinder 519; Accommodating station C 510; Lifting drive device C 521; Butt joint pipe 522; Bracket C 523; Rotary drive motor D 524; Second extension rod 525; Cover plate 526; Gantry B 531; Lifting drive device C 532; Rotary drive motor C 533; Butt joint disc 534; Butt joint lever 5341;First conveyor belt 100; Second conveyor belt 200; Third conveyor belt 300. Detailed Implementation Example 1

[0075] like Figures 1-20 As shown, the radioactive powder material collection assembly includes a plant, storage tanks, transfer tanks, a transfer tank rotating device, a storage tank translation trolley, a storage tank outer cover disassembly and assembly device, a storage tank inner cover opening and closing device, a transfer tank upper cover disassembly and assembly device, a lower pipeline docking device, and a negative pressure dust removal device.

[0076] The factory building has three levels of space, from bottom to top: a first-floor space 11, a second-floor space 12, and a third-floor space 13. A transfer elevator 18 runs through these three levels from bottom to top. The transfer elevator 18 has a lower opening 181 and an upper opening 182 in the first-floor space 11 and the third-floor space 13, respectively. The transfer elevator 18 is used to receive or discharge transfer tanks at the lower opening 181, or at the upper opening 182, or to lift transfer tanks filled with materials from the first-floor space 11 to the third-floor space 13, or to lower empty transfer tanks from the third-floor space 13 back to the first-floor space 11. The specific structure of the transfer elevator 18 is prior art; please refer to the description of "elevator" in patent document CN113443329A, which will not be repeated here. The first-floor space 11 is equipped with an overhead sliding platform 14 and a cantilever crane (not shown in the figure). The overhead sliding platform 14 is equipped with a horizontal track A15. The second-floor space 12 is equipped with a transfer hopper 16, which has an inlet 161 at its upper end. The third-floor space 13 has a horizontal track B17 on its floor (or ground). One end of the horizontal track B17 is close to the upper opening 182 of the transfer elevator 18, and the other end is away from the upper opening 182 of the transfer elevator 18.

[0077] The storage tank includes a tank body A21, a lead screw A22, a nut A23, an operating panel A24, an inner sleeve A25, an outer sleeve A26, an extension rod A27, an inner sealing cover A28, and an outer protective cover.

[0078] The inner cavity A211 is arranged in the tank body A21 for containing UO2 powder. The discharge port A212 is arranged at the bottom of the tank body A21 and communicates with the inner cavity A211. The annular step 213 is arranged on the lower end outer wall of the tank body A21 close to the discharge port A212. The upper pressing plate 215 is annularly welded on the annular step 213 and extends outwardly to the radial outer side of the storage tank. Four supporting legs 214 are evenly welded on the lower end of the tank body A21. The screw rod A22 is movably arranged in the inner cavity A211 of the tank body A21 and is arranged at the center of the inner cavity A211 along the axial direction of the tank body A21. The screw rod A22 is sequentially provided with an operating section, a light rod section and a threaded rod section from top to bottom. The operating section of the screw rod A22 extends out of the upper end of the tank body A21. The light rod section of the screw rod A22 is rotatably connected with the tank body A21 through a ball bearing. The nut A23 is threadedly connected with the threaded rod section of the screw rod A22. The nut A23 is provided with a guide groove A on the outer wall surface. The operating disc A24 is fixedly arranged on the operating section of the screw rod A22. The operating disc A24 is provided with a plurality of insertion holes A241 which are annularly and evenly arranged around the screw rod A22. The inner sleeve A25 is fixedly connected with the nut A23 and contains the threaded rod section of the screw rod A22 through the inner hole thereof. The outer sleeve A26 is movably sleeved on the outside of the inner sleeve A25 through the inner hole thereof. The inner side of the outer sleeve A26 is provided with a guide rib 261. The outer side of the outer sleeve A26 is fixedly arranged on the tank body A21. The inner side of the outer sleeve A26 is slidably matched with the guide groove A of the nut A23 through the guide rib 261. The upper end of the extension rod A27 is fixedly connected (threadedly connected) with the lower end of the inner sleeve A25.

[0079] The inner sealing cover A28 is conical annular and is fixedly arranged on the lower end outer wall of the extension rod A27. The inner sealing cover A28 is used for opening or closing the discharge port A212 at the bottom of the tank body A21. The operation of opening or closing the discharge port A212 at the bottom of the tank body A21 is as follows: the operating section of the screw rod A22 is twisted to move the nut A26 along the guide rib 261 of the outer sleeve A26 (or along the screw rod A22), so as to move the inner sealing cover A28 through the inner sleeve A25 and the extension rod A27, so that the inner sealing cover A28 is attached to or separated from the discharge port A212 of the tank body A21. When the inner sealing cover A28 is attached to the discharge port A212 of the tank body A21, the discharge port A212 is closed. When the inner sealing cover A28 is separated from the discharge port A212 of the tank body A21, the discharge port A212 is opened.

[0080] The outer protective cover comprises an upper pressing plate 215, an upper seat body 292, a lower seat body 293, an L-shaped rocker 294 and a spring 295. The upper seat body 292 comprises an upper sealing disc 2921, a corner connecting plate 2922 and a lower adsorption plate 2923 fixedly connected in sequence from top to bottom. The upper end surface of the upper sealing disc 2921 is used to abut or separate with the upper pressing plate 215 of the storage tank, thereby opening or closing the discharge port A212 of the storage tank. The lower end surface of the upper sealing disc 2921 is provided with an annular boss X2924 for accommodating the spring 295. A plurality of corner connecting plates 2922 are annularly and uniformly distributed between the upper sealing disc 2921 and the lower adsorption plate 2923 around the annular boss X2924. The upper end of the corner connecting plate 2922 is welded with the lower end surface of the upper sealing disc 2921, and the lower end of the corner connecting plate 2922 is welded with the upper end surface of the lower adsorption plate 2923. The center of the lower adsorption plate 2923 is provided with a central hole A for the lower seat body to pass through. The lower seat body 293 comprises a lower pushing plate 2931 and an upper annular plate 2932 fixedly connected in sequence from bottom to top. The central area of the upper end surface of the lower pushing plate 2931 is provided with an annular boss Y2933 for accommodating the spring. A plurality of guide grooves X are annularly and uniformly distributed on the upper end surface of the lower pushing plate 2931 around the annular boss Y2933. The upper annular plate 2932 is arranged at the upper end of the annular boss Y2933 and extends outward in the radial direction of the annular boss Y2933. The lower seat body 293 is provided with an annular open interval 2934 between the outside of the annular boss Y2933, the lower end of the upper annular plate 2932 and the upper end of the lower pushing plate 2931. The lower seat body 293 is movably inserted into the lower end opening of the annular boss X2924 of the upper seat body 292 through the upper end opening of the annular boss Y2933, so that the annular boss X2924 of the upper seat body 292 and the annular boss Y2933 of the lower seat body 293 are in communication to form a spring accommodation cavity 2935. The L-shaped rocker 294 is provided with a hook portion 2941 at the upper end, a roller A2942 at the lower end and a turning portion 2943 at the middle portion. The turning portion of the L-shaped rocker 294 is hinged to the lower end of the corner connecting plate 2922. The roller A2942 of the L-shaped rocker 294 is limited in the annular open interval 2934, and the lower end of the roller A2942 is embedded in the guide groove X. The spring 295 is compressedly arranged in the spring accommodation cavity 2935, and it forces the lower seat body 293 to move away from the upper seat body 292 by the elastic force, thereby driving the L-shaped rocker 294 to rotate inwardly (clockwise) of the storage tank around the hinge thereof, so that the hook portion 2941 of the L-shaped rocker 294 hooks the upper end surface of the upper pressing plate 215 of the storage tank. When an external force pushes the lower seat body 293 to move towards the upper seat body 292, it drives the L-shaped rocker 294 to rotate outwardly (counterclockwise) of the storage tank around the hinge thereof, so that the hook portion 2941 of the L-shaped rocker 294 is separated from the upper end surface of the upper pressing plate 215 of the storage tank.

[0081] The transfer tank comprises a tank body B31, an upper sealing cover 32, a screw rod B33, a nut B34, an operation disc B35, an inner sleeve B36, an outer sleeve B37, an extension rod B38, an inner sealing cover B39 and a vibration motor 30. The lower end of the tank body B31 is provided with a guide section 314 in the shape of a regular quadrangular prism with a circular arc transition at the edge, and the inside of the tank body B31 is provided with an inner cavity B311 for containing UO2 powder. The bottom of the tank body B31 is provided with a discharge port B312 communicating with the inner cavity B311, and the top of the tank body B31 is provided with only one feeding port 313. The upper sealing cover 32 is detachably installed on the feeding port 313. The screw rod B33 is movably installed in the inner cavity B311 of the tank body B31, with its axis line arranged in coincidence with the center line of the tank body B31. The screw rod B33 is sequentially provided with an operation section, a light rod section and a threaded rod section from top to bottom, with the operation section of the screw rod B33 extending out of the upper end of the tank body B31, and the light rod section of the screw rod B33 rotatably connected to the tank body B31 through a tapered roller bearing. The nut B34 is threadedly connected to the threaded rod section of the screw rod B33, and is provided with a guide groove B on the outer side wall surface. The operation disc B35 is fixedly installed on the operation section of the screw rod B33, and is provided with a plurality of insertion holes B351 uniformly distributed in a ring shape around the screw rod B33. The inner sleeve B36 is fixedly connected to the nut B34 and contains the threaded rod section of the screw rod B33. The outer sleeve B37 is sleeved on the outside of the inner sleeve B36, and is provided with a guide strip 371 on the inside, which is fixedly installed on the tank body B31 on the outside and is slidably matched with the guide groove B of the nut B34 on the inside through the guide strip 371. The upper end of the extension rod B38 is fixedly connected to the lower end of the inner sleeve B36. The inner sealing cover B39 is in the shape of a tapered ring and is fixedly installed on the lower end of the extension rod B38, and is used to open or close the discharge port B312 at the bottom of the tank body B31. The vibration motor 30 is fixedly installed on the upper end side wall of the tank body B31. The operation of opening or closing the discharge port B312 is as follows: the operation section of the screw rod B33 is twisted to move the nut B34 along the guide strip 371 of the outer sleeve B37 (or along the screw rod B33), and then the inner sealing cover B39 is moved by the inner sleeve B36 and the extension rod B38 to make the inner sealing cover B39 adhere to or separate from the discharge port B312 of the tank body B31. When the inner sealing cover A28 adheres to the discharge port B312 of the tank body B31, the discharge port B312 is closed, and when the inner sealing cover A28 separates from the discharge port B312 of the tank body B31, the discharge port B312 is opened.

[0082] The material collection assembly comprises a transfer tank rotating device, a storage tank translation trolley, a storage tank outer cover dismounting device, a storage tank inner cover opening and closing device, a transfer tank upper cover dismounting device, a lower pipeline butt joint device and a negative pressure dust removal device.

[0083] The transfer tank rotating device is fixedly arranged below the overhead sliding platform 14. The transfer tank rotating device comprises a lower base 411, a rotating drive motor A 412, an upper rotating disc 413, a limiting frame 414 and a first guide roller 415. The lower base 411 is directly or indirectly fixedly installed on the ground of the first floor space 11. The rotating drive motor A 412 is fixedly installed on the lower base 411. The upper rotating disc 413 is fixedly installed on the upper end of the rotating drive motor A 412 and rotates horizontally under the drive of the rotating drive motor A 412. The upper end of the upper rotating disc 413 is provided with a plurality of rollers arranged in parallel and horizontally, which are arranged in three parallel columns at the upper end of the upper rotating disc 413. The rollers in the middle column are non-electrically driven rollers, and the rollers in the two side columns are electrically driven rollers. All the rollers form a rolling conveying surface A above them. One end of the conveying direction of the rolling conveying surface A is an inlet and outlet A 416 (the inlet and outlet A 416 can be used for the transfer tank to enter or exit the rolling conveying surface A). The limiting frame 414 is fixedly installed on the upper rotating disc 413 and located at the other end of the conveying direction of the rolling conveying surface A. The limiting frame 414 is embedded with a limiting electromagnet 4141. The two columns of first guide rollers 415 are vertically arranged and rotatably installed on the upper rotating disc 413 and located on the two sides of the conveying direction of the rolling conveying surface A. Each column of first guide rollers 415 is composed of a plurality of first guide rollers 415 vertically arranged and arranged in a horizontal column. The two columns of first guide rollers 415 and the limiting frame 414 form a placing station A 417. When the transfer tank enters the rolling conveying surface A through the inlet and outlet A 416, the two columns of first guide rollers 415 respectively contact two surfaces on the guide section 314 of the transfer tank, and the limiting electromagnet 4141 on the limiting frame 414 is used to adsorb one surface on the guide section 314 of the transfer tank, so as to limit the transfer tank in the placing station A 417. When the transfer tank rotating device rotates with the transfer tank placed in the placing station A 417, there are a first docking position and a second docking position in the rotating path of the upper sealing cover 32 of the transfer tank.

[0084] The storage tank translation trolley is movably installed on the horizontal rail A15. The storage tank translation trolley comprises a trolley body A421 and an electric push rod A425. The trolley body A421 is provided with a plurality of guide rollers arranged horizontally at the upper end of the trolley body A421, and all the guide rollers jointly enclose a plurality of mouth-shaped areas, each of which is a placement station B423. The trolley body A421 is provided with a blanking hole A424 in each placement station B423. The trolley body A421 is rollingly installed on the horizontal rail A15 through the rollers B422. The cylinder body of the electric push rod A425 is fixedly installed on the horizontal rail A15, and the piston rod of the electric push rod A425 is fixedly connected with the trolley body A421. When the piston rod of the electric push rod A425 is retracted or extended, the trolley body A421 is driven to move horizontally and reciprocally along the horizontal rail A15. When the storage tank is placed in any placement station B423 of the storage tank translation trolley, the discharge port A212 of the storage tank is opposite to the blanking hole A424 in the placement station B423. When the storage tank is placed in the target placement station B423 of the storage tank translation trolley, the guide rollers located at the four sides of the target placement station B423 are in contact with the four legs 214 at the lower end of the storage tank, so as to correct and adjust the posture of the storage tank, thereby limiting the storage tank in the placement station B423. When the storage tank translation trolley moves with the storage tank placed in the placement station B423, the movement path of the storage tank passes through the third, fourth and fifth docking positions.

[0085] The device is used for dismounting and mounting the outer protective cover of the storage tank. The device comprises an electric push rod B431, a bracket 432, a ring-shaped electromagnet 433 and a traction electromagnet 434. The cylinder body of the electric push rod B431 is directly or indirectly fixed on the ground of the first space 11, and the piston rod of the electric push rod B431 vertically extends upwards. The bracket 432 is directly or indirectly fixed on the piston rod of the electric push rod B431, and the top of the bracket 432 is provided with a central hole B4321, and the central hole B4321 is provided with an electromagnet accommodating cavity 4322. The ring-shaped electromagnet 433 is fixed on the upper end of the bracket 432, and the center of the ring-shaped electromagnet 433 is provided with a central hole C4331, and the central hole C4331 contains the central hole B4321 of the bracket 432. The lower end of the traction electromagnet 434 is fixed in the electromagnet accommodating cavity 4322 of the bracket 432, the upper end of the traction electromagnet 434 extends out of the central hole B4321 of the bracket 432 and is located in the central hole C4331 of the ring-shaped electromagnet 433, and the upper end of the traction electromagnet 434 moves vertically and linearly, so as to extend out of the upper end of the ring-shaped electromagnet 433 or retract into the central hole C4331 of the ring-shaped electromagnet 433. When the storage tank with the outer protective cover moves to the fourth docking position, and the device is not adsorbed to the outer protective cover, the lower adsorption plate 2923 of the outer protective cover is located directly above the ring-shaped electromagnet 433, and the lower push plate 2931 of the outer protective cover is located directly above the traction electromagnet 434, so as to facilitate the device to dismount the outer protective cover of the storage tank. When the storage tank without the outer protective cover moves to the fourth docking position, and the device is adsorbed to the outer protective cover, the lower adsorption plate 2923 of the outer protective cover is magnetically attracted to the ring-shaped electromagnet 433, the lower push plate 2931 of the outer protective cover is magnetically attracted to the traction electromagnet 434, and the upper sealing disc 2921 of the outer protective cover is located directly below the upper pressing plate 215 of the storage tank, so as to facilitate the device to mount the outer protective cover of the storage tank.

[0086] The inner cover opening and closing device of the storage tank is used to control the inner sealing cover A28 of the storage tank to be attached or separated from the discharge port A212, so as to open or close the discharge port A212 of the storage tank. The inner cover opening and closing device of the storage tank comprises a gantry A441, a lifting driving device A442, a rotating driving motor B443 and a docking disc 444. The gantry A441 is directly or indirectly fixedly installed on the overhead sliding table 14. The lifting driving device A442 is fixedly installed on the gantry A441. The rotating driving motor B443 is fixedly installed on the lifting driving device A442, which is driven by the lifting driving device A442 to move vertically. The docking disc 444 is fixedly connected to the lower end of the rotating driving motor B443 and is driven by the rotating driving motor B443 to rotate horizontally. The docking disc 444 is provided with a plurality of finger rods 4441 for being inserted into the insertion hole A241 of the operation disc A24 of the storage tank. When the storage tank moves to the third docking position, the operation disc A24 of the storage tank is located directly below the docking disc 444 of the inner cover opening and closing device of the storage tank, so as to open or close the discharge port A212 of the storage tank.

[0087] The upper cover dismounting and mounting device of the transfer tank is used to dismount and mount the upper sealing cover 32 of the transfer tank. The upper cover dismounting and mounting device of the transfer tank comprises a lifting driving device B451, a first extension rod 452 and an electromagnetic suction disc 453. The lifting driving device B451 is directly or indirectly fixedly installed on the overhead sliding table 14. The first extension rod 452 is fixedly connected to the lifting driving device B451 at the upper end, which is driven by the lifting driving device B451 to move vertically. The electromagnetic suction disc 453 is fixedly connected to the lower end of the first extension rod 452. When the transfer tank is rotated to the first docking position, the upper sealing cover 32 of the transfer tank is located directly below the electromagnetic suction disc 453 of the upper cover dismounting and mounting device of the transfer tank, so as to dismount or mount the upper sealing cover 32 of the transfer tank.

[0088] The lower pipe docking device is used for docking the storage tank and the transfer tank. The lower pipe docking device comprises a support A461, a middle pipe 462, an upper movable pipe 463, a lower movable pipe 464, a linear motor A465, a linear motor B466, a connecting rod A467 and a connecting rod B468. The support A461 is fixedly installed on the overhead sliding table 14. The middle pipe 462 is fixedly installed on the support A461. The upper movable pipe 463 and the lower movable pipe 464 are movably inserted into the upper end inner wall and the lower end outer wall of the middle pipe 462 respectively and extend out of the upper port and the lower port of the middle pipe 462 respectively. Two third hinge parts are arranged on the upper end outer wall of the upper movable pipe 463 in opposition. Two fourth hinge parts are arranged on the lower end outer wall of the lower movable pipe 464 in opposition. The linear motor A465 comprises a base A4651, a guide rail A4652 and a sliding block A4653. The base A4651 is fixedly installed on the upper end of the support A461. The guide rail A4652 is horizontally installed on the base A4651. The sliding block A4653 is slidingly installed on the guide rail A4652. The number of the linear motor A465 is two. The two linear motors A465 are symmetrically arranged with respect to the middle pipe 462. The linear motor B466 comprises a base B4661, a guide rail B4662 and a sliding block B4663. The base B4661 is fixedly installed on the lower end of the support A461. The guide rail B4662 is horizontally installed on the base B4661. The sliding block B4663 is slidingly installed on the guide rail B4662. The number of the linear motor B466 is two. The two linear motors B466 are symmetrically arranged with respect to the middle pipe 462. Two connecting rods A467 are distributed on the two sides of the middle pipe 462. One end of each of the two connecting rods A467 is hingedly connected to the sliding block A4653 of the two linear motors A465 respectively. The other end of each of the two connecting rods A467 is hingedly connected to the two third hinge parts of the upper movable pipe 463 respectively. Two connecting rods B468 are distributed on the two sides of the middle pipe 462. One end of each of the two connecting rods B468 is hingedly connected to the sliding block B4663 of the two linear motors B466 respectively. The other end of each of the two connecting rods B468 is hingedly connected to the two fourth hinge parts of the lower movable pipe 464 respectively. When the transfer tank is rotated to the second docking position, the feeding port 313 of the transfer tank is located directly below the lower movable pipe 464 of the lower pipe docking device, so as to facilitate the docking of the lower pipe docking device to the transfer tank. When the storage tank is moved to the fifth docking position, the discharging port A212 of the storage tank is located directly above the upper movable pipe 463 of the lower pipe docking device, so as to facilitate the docking of the lower pipe docking device to the storage tank.

[0089] The negative pressure dust removal device comprises filter units 471, a main pipe 472, branch pipes 473, a hose 474 and a negative pressure fan 475. The plurality of filter units 471 are uniformly arranged in annular form on the top of the tank body B31 of the transfer tank together with the feed inlet 313, the filter units 471 are internally provided with filter elements for filtering radioactive dust, the two ends of the filter units 471 are respectively the air inlet end and the air outlet end, and the air inlet end of the filter units 471 extends into the inner cavity B311 of the transfer tank. The main pipe 472 is provided with a main air outlet and a plurality of air inlets, the number of the air inlets is consistent with the number of the filter units 471, and the main air outlet is provided with a ball valve for controlling the on-off of air flow. The number of the branch pipes 473 is consistent with the number of the filter units 471, and the branch pipes 473 correspond to the filter units 471 one by one, one end of the branch pipes 473 communicates with the air outlet end of the corresponding filter units 471, and the other end of the branch pipes 473 communicates with the corresponding air inlets on the main pipe 472. One end of the hose 474 is detachably connected with the main air outlet of the main pipe 472 through a quick pipe joint, the other end is detachably connected with the air inlet end of the negative pressure fan, and the air outlet end of the negative pressure fan 475 communicates with the atmosphere.

[0090] Preferably, a plurality of cameras (not shown in the figure) are arranged in the third floor 13 of the factory building, so as to provide visual support and visual monitoring for the automatic feeding operation of the third floor 13 of the factory building.

[0091] Preferably, a sealing ring is arranged between the discharge port A212 of the tank body A21 and the inner sealing cover A28, so as to avoid leakage of radioactive materials through the gap.

[0092] Preferably, the upper sealing cover 32 is a reverse conical cover with a large upper end and a small lower end, which can realize self-centering when being closed and reduce the docking precision.

[0093] Preferably, a sealing ring is arranged between the discharge port B312 of the tank body B31 and the inner sealing cover B39, so as to avoid leakage of radioactive materials through the gap.

[0094] Preferably, the inner cavity B311 of the transfer tank has a volume of 4-6 times that of the inner cavity A211 of the storage tank.

[0095] Preferably, the upper end of the upper movable pipeline 463 is provided with a first conical section which is expanded outward, and when the upper movable pipeline 463 is docked with the discharge port A212 of the storage tank, the upper end of the upper movable pipeline 463 contains the discharge port A212 of the storage tank.

[0096] Preferably, the lower end of the lower movable pipeline 464 is provided with a second conical section which is contracted, and when the lower movable pipeline 464 is docked with the feed inlet 313 of the transfer tank, the lower end of the lower movable pipeline 464 is inserted into the feed inlet 313 of the transfer tank.

[0097] Preferably, the number of the storage tank outer cover dismounting devices is consistent with the number of the installation stations B423 on the storage tank translation trolley. Example 2

[0098] As Figure 21 shown, the embodiment compared with example 1, the difference is only in the structure of the transfer tank and negative pressure dust removal device, specific description as follows.

[0099] The transfer tank comprises a tank body B31, upper sealing covers 32, a screw rod B33, a nut B34, an operation disc B35, an inner sleeve B36, an outer sleeve B37, an extension rod B38 and an inner sealing cover B39. The tank body B31 is provided with a guide section 314 at the lower end, which is a regular quadrangular prism with a circular arc transition at the edge, and is provided with an inner cavity B311 for containing UO2 powder in the inside. The tank body B31 is provided with a discharge port B312 at the bottom, which is communicated with the inner cavity B311. The tank body B31 is provided with three feed ports 313 at the top, which are evenly distributed in a ring shape around the center line of the tank body B31. Three upper sealing covers 32 are respectively detachably installed on the three feed ports 313. The screw rod B33 is movably installed in the inner cavity B311 of the tank body B31, and the axis line thereof is arranged in coincidence with the center line of the tank body B31. The screw rod B33 is provided with an operation section, a light rod section and a threaded rod section from top to bottom in sequence. The operation section of the screw rod B33 extends out of the upper end of the tank body B31. The screw rod B33 is rotatably connected with the tank body B31 through a tapered roller bearing at the light rod section. The nut B34 is threadedly connected with the threaded rod section of the screw rod B33, and is provided with a guide groove B on the outer side wall surface. The operation disc B35 is fixedly installed on the operation section of the screw rod B33, and is provided with a plurality of insertion holes B351 which are evenly distributed in a ring shape around the screw rod B33. The inner sleeve B36 is fixedly connected with the nut B34, and contains the threaded rod section of the screw rod B33. The outer sleeve B37 is sleeved on the outside of the inner sleeve B36, and is provided with a guide strip 371 on the inside. The outer sleeve B37 is fixedly installed on the tank body B31 on the outside, and is slidably matched with the guide groove B of the nut B34 through the guide strip 371 on the inside. The upper end of the extension rod B38 is fixedly connected with the lower end of the inner sleeve B36. The inner sealing cover B39 is conically and fixedly installed at the lower end of the extension rod B38, and is used for opening or closing the discharge port B312 at the bottom of the tank body B31. The operation of opening or closing the discharge port B312 at the bottom of the tank body B31 is as follows: the operation section of the screw rod B33 is twisted to move the nut B34 along the guide strip 371 of the outer sleeve B37 (or along the screw rod B33), and then the inner sealing cover B39 is moved through the inner sleeve B36 and the extension rod B38 to make the inner sealing cover B39 adhere to or separate from the discharge port B312 of the tank body B31. When the inner sealing cover A28 adheres to the discharge port B312 of the tank body B31, the discharge port B312 is closed. When the inner sealing cover A28 separates from the discharge port B312 of the tank body B31, the discharge port B312 is opened.

[0100] The negative pressure dust removal device comprises filter units 471, a main pipe 472, branch pipes 473, a hose 474 and a negative pressure fan 475. The plurality of filter units 471 are annularly and uniformly distributed on the top of the tank body B31 of the transfer tank, the filter units 471 are internally provided with filter cores for filtering radioactive dust, the two ends of the filter units 471 are respectively air inlet ends and air outlet ends, and the air inlet ends of the filter units 471 extend into the inner cavity B311 of the transfer tank. The number of the filter units 471 is consistent with the number of the feed ports 313 of the transfer tank, and one filter unit 471 is arranged at the middle position between every two adjacent feed ports 313 of the transfer tank. The main pipe 472 is provided with one main air outlet and a plurality of air inlets, the number of the air inlets is consistent with the number of the filter units 471, and the main air outlet is provided with a ball valve for controlling the on-off of air flow. The number of the branch pipes 473 is consistent with the number of the filter units 471, and the branch pipes 473 correspond to the filter units 471 one by one, one end of the branch pipe 473 is in communication with the air outlet end of the corresponding filter unit 471, and the other end of the branch pipe 473 is in communication with the corresponding air inlet of the main pipe 472. One end of the hose 474 is detachably connected to the main air outlet of the main pipe 472 through a quick pipe joint, the other end is detachably connected to the air inlet end of the negative pressure fan, and the air outlet end of the negative pressure fan 475 is in communication with the atmosphere.

[0101] The application is applied to an automatic radioactive powder material feeding system, which realizes automatic feeding operation of UO2 powder material in a uranium conversion process. The automatic feeding operation can be generally divided into two steps: a plurality of small tank materials are gathered into a transfer tank; and the transfer tank is transported to the third floor of a plant for one-time feeding. The application realizes the first step in the two steps.

[0102] As shown in the drawings, Figures 1-27 The automatic radioactive powder material feeding system comprises a plant, a storage tank, a transfer tank, a material gathering assembly, a material feeding assembly, a first conveying belt 100, a second conveying belt 200 and a third conveying belt 300. The material feeding assembly comprises a transfer tank translation trolley, an upper pipeline butt joint device and a transfer tank inner cover opening and closing device.

[0103] The structures of the plant, the storage tank, the transfer tank and the material gathering assembly are described above, and will not be described here again.

[0104] The transfer tank translation trolley is movably installed on the horizontal track B17. The transfer tank translation trolley comprises a trolley body B511 and a limiting assembly. The trolley body B511 is provided with power wheels B512 (the power wheels B512 are driven to rotate by a motor) at the lower end, and is provided with a plurality of rollers arranged in parallel and horizontally at the upper end. The rollers are arranged into four parallel columns above the trolley body B511, the two columns of rollers in the middle are non-electrically driven rollers, and the two columns of rollers on the sides are electrically driven rollers. All the rollers form a rolling conveying surface B above them. One end of the conveying direction of the rolling conveying surface B is an inlet and outlet B513 (the inlet and outlet B513 can be used for the transfer tank to enter or exit the rolling conveying surface B). The first and second avoidance zones are formed between the two columns of rollers in the middle, and the first and second avoidance zones are respectively located at the two ends of the conveying direction of the rolling conveying surface B. The trolley body B511 is provided with a vacant area not covered by the rollers at the center of the upper end, and is provided with a blanking hole B514 in the vacant area. The limiting assembly comprises second guide rollers 515, a front limiting plate 516, a front air cylinder 517, a rear limiting plate 518 and a rear air cylinder 519. The two columns of second guide rollers 515 are vertically arranged and rotatably installed on the trolley body B511 and are located on the two sides of the conveying direction of the rolling conveying surface B. Each column of second guide rollers 515 is composed of a plurality of second guide rollers 515 arranged vertically and horizontally in one column. The lower end side of the front limiting plate 516 is hinged above the trolley body B511 and located in the first avoidance zone. The cylinder body of the front air cylinder 517 is hinged above the trolley body B511 and located in the first avoidance zone. The piston rod of the front air cylinder 517 is hinged with the front limiting plate 516. The piston rod of the front air cylinder 517 is telescopic to drive the front limiting plate 516 to rotate around the lower end side, so as to make the front limiting plate 516 extend above the rolling conveying surface B or retract below the rolling conveying surface B. The lower end side of the rear limiting plate 518 is hinged above the trolley body B511 and located in the second avoidance zone. The cylinder body of the rear air cylinder 519 is hinged above the trolley body B511 and located in the second avoidance zone. The piston rod of the rear air cylinder 519 is hinged with the rear limiting plate 518. The piston rod of the rear air cylinder 519 is telescopic to drive the rear limiting plate 518 to rotate around the lower end side, so as to make the rear limiting plate 518 extend above the rolling conveying surface B or retract below the rolling conveying surface B. The two columns of second guide rollers 515, the front limiting plate 516 and the rear limiting plate 518 jointly form a placement station C510. The trolley body B511 of the transfer tank translation trolley is rolling installed on the horizontal track B17 by the power wheels B512 and moves reciprocatingly and linearly along the horizontal track B17. The movement stroke and the position of the transfer tank translation trolley can be controlled by adjusting the operating parameters of the motor connected with the power wheels B512, or by setting a laser ranging sensor or a travel switch.When the transfer tank enters the rolling conveying surface B through the inlet and outlet B513, two rows of second guide rollers 515 respectively contact two surfaces on the guide section 314 of the transfer tank, the front limiting plate 516 and the rear limiting plate 518 which protrude above the rolling conveying surface B respectively abut against the other two surfaces on the guide section 314 of the transfer tank, so as to limit the transfer tank in the setting station C510. When the transfer tank is limited in the setting station C510, the discharge port B312 of the transfer tank is directly opposite the dropping hole B514. The moving path of the transfer tank translation trolley has a transfer tank position and a dropping position, when the transfer tank translation trolley is at the transfer tank position, the inlet and outlet B513 of the transfer tank translation trolley is directly or indirectly communicated with the upper opening 182 of the transfer elevator 18, so as to realize the bidirectional transfer of the transfer tank, when the transfer tank translation trolley is at the dropping position, the transfer tank placed in the setting station C510 is connected with the transfer bin through the upper pipeline connecting device.

[0105] The upper pipeline connecting device is used for connecting the transfer tank and the transfer bin 16. The upper pipeline connecting device comprises a lifting driving device C521, a connecting pipe 522, a support C523, a rotating driving motor D524, a second extension rod 525 and a cover plate 526. The lifting driving device C521 is fixedly installed on the ground of the three-layer space 13 and is fixedly connected with the vertically arranged connecting pipe 522, which is used for driving the connecting pipe 522 to vertically move up and down. The lower end of the connecting pipe 522 penetrates through the ground of the three-layer space 13 and enters the two-layer space 12, and the upper end of the connecting pipe 522 protrudes in the three-layer space 13. The connecting pipe 522 is sequentially provided with an upper limit position and a lower limit position from top to bottom in the vertical moving stroke of the connecting pipe 522. In the vertical moving stroke of the connecting pipe 522, the lower end of the connecting pipe 522 always extends into the inlet port 161 of the transfer bin 16. The support C523 is fixedly installed on the floor of the three-layer space 13. The rotating driving motor D524 is fixedly installed on the support C523, the shaft of the rotating driving motor D524 horizontally extends and is fixedly connected with the front end of the second extension rod 525. The cover plate 526 is fixedly connected with the rear end of the second extension rod 525, and is rotated under the driving of the rotating driving motor D524, so as to shield or open the upper port of the connecting pipe 522 at the lower limit position. When the transfer tank placed in the setting station C510 moves to the dropping position with the transfer tank translation trolley, the connecting pipe 522 vertically moves up to the upper limit position, so that the upper port of the connecting pipe 522 penetrates through the dropping hole B514 of the transfer tank translation trolley and is connected with the discharge port B312 of the transfer tank. The connecting pipe 522 vertically moves down to the lower limit position, so that the upper port of the connecting pipe 522 exits the dropping hole B514 of the transfer tank translation trolley and is separated from the discharge port B312 of the transfer tank.

[0106] The inner cover opening and closing device of the transfer tank is fixedly arranged on the transfer tank translation trolley, which is used to control the inner sealing cover B39 of the transfer tank to be attached to or separated from the discharge port B312, so as to open or close the discharge port B312 of the transfer tank. The inner cover opening and closing device of the transfer tank comprises a portal frame B531, a lifting driving device C532, a rotary driving motor C533 and a plug-in disc 534. The portal frame B531 is directly or indirectly fixedly installed on the vehicle body B511 of the transfer tank translation trolley. The lifting driving device C532 is fixedly installed on the portal frame B531 and is fixedly connected with the rotary driving motor C533, which is used to drive the rotary driving motor C533 to vertically move up and down. The shaft of the rotary driving motor C533 vertically extends downward. The plug-in disc 534 is fixedly connected with the shaft of the rotary driving motor C533 and is driven by the rotary driving motor C533 to horizontally rotate. The plug-in disc 534 is provided with a plug rod 5341 at the lower end for plugging into the B insertion hole B of the operation disc B of the transfer tank. When the transfer tank is limited in the installation station C510, the operation disc B35 of the transfer tank is located directly below the plug-in disc 534 of the inner cover opening and closing device of the transfer tank, so as to open or close the discharge port B312 of the transfer tank.

[0107] The first conveying belt 100 is arranged between the installation station A417 of the transfer tank rotating device and the lower opening 181 of the transfer elevator 18, which is used for the bidirectional transmission of the transfer tank between the installation station A417 and the lower opening 181. The second conveying belt 200 is arranged between the installation station C510 of the transfer tank translation trolley and the upper opening 182 of the transfer elevator 18, which is used for the bidirectional transmission of the transfer tank between the installation station C510 and the upper opening. The third conveying belt 300 is arranged adjacent to the transfer tank rotating device, which is used to transfer the transfer tank to the installation station A417 of the transfer tank rotating device.

[0108] The radioactive powder material automatic feeding system is used for the automatic feeding operation of UO2 powder before the start of the uranium conversion process in the nuclear fuel preparation process. Before feeding, each component in the radioactive powder material automatic feeding system is in an initial state, and in the initial state:

[0109] a. The inner sealing cover A28 of the storage tank is attached to the discharge port A212 of the storage tank to close the discharge port A212, and the outer protective cover of the storage tank is installed outside the discharge port A212 of the storage tank;

[0110] b. The inner sealing cover A28 of the transfer tank is attached to the discharge port B312 to close the discharge port B312;

[0111] c. The electric push rod B431 and the traction electromagnet 434 in the storage tank outer cover dismounting device are respectively moved to the lower end limit position to avoid interference with the storage tank;

[0112] d. The docking disc 444 in the inner lid opening and closing device of the storage tank is at the upper end of its moving stroke to avoid interference with the storage tank on the storage tank translation trolley;

[0113] e. The electromagnetic chuck 453 in the upper lid dismounting and mounting device of the transfer tank is at the upper end of its moving stroke to avoid interference with the transfer tank on the transfer tank rotating device;

[0114] f. The upper movable pipe 463 in the lower pipe docking device is at the lower end of its moving stroke to avoid interference with the storage tank translation trolley, and the lower movable pipe 464 is at the upper end of its moving stroke to avoid interference with the transfer tank on the transfer tank rotating device;

[0115] g. The ball valve in the negative pressure dust removal device is in the closed state;

[0116] h. The transfer tank translation trolley moves to the transfer tank position, thereby preparing to receive the transfer tank; the front and rear limit plates 516 and 518 on the transfer tank translation trolley are retracted below the rolling conveying surface B;

[0117] i. The docking pipe 522 in the upper pipe docking device is at the lower limit position to avoid interference with the transfer tank translation trolley; the cover plate 526 covers the upper end of the docking pipe 522 at the lower limit position;

[0118] j. The plug-in disc 534 in the inner lid opening and closing device of the transfer tank is at the upper end of its moving stroke to avoid interference with the transfer tank on the transfer tank translation trolley.

[0119] The feeding operation of the radioactive powder material automatic feeding system corresponding to embodiment 2 is as follows:

[0120] S01, respectively, place the storage tank and the transfer tank:

[0121] a. Operate the cantilever crane to hoist a group of storage tanks into the placement workstations B423 of the storage tank translation trolley, one storage tank in each placement workstation B423; during the hoisting of the storage tank into the placement workstation B423, the guide rollers on the four sides of the placement workstation B423 guide, correct and center the storage tank;

[0122] b. Operate the cantilever crane to hoist a transfer tank onto the third conveying belt 300; start the rotation drive motor A412 of the transfer tank rotating device to drive the upper rotating disc 413 to rotate, so that the inlet and outlet A416 of the transfer tank rotating device are aligned with the third conveying belt 300;

[0123] c. The third conveying belt 300 is started to drive the transfer tank placed thereon to move towards the direction close to the inlet and outlet A416 of the transfer tank rotating device. When the transfer tank passes through the inlet and outlet A416 to enter the rolling conveying surface A, the transfer tank is driven by the rollers to move towards the direction close to the limiting frame 414. During the movement, the two rows of first guide rollers 415 respectively contact the two surfaces on the guide section 314 of the transfer tank to limit the movement path of the transfer tank. When the transfer tank is adsorbed by the limiting electromagnet 4141 on the limiting frame 414, the transfer tank is locked in the placement station A417 of the transfer tank rotating device.

[0124] S02. The outer protective cover of the storage tank is removed.

[0125] a. The target storage tank is moved to the fourth docking position by the storage tank translation trolley, so that the lower adsorption plate 2923 of the outer protective cover is located directly above the annular electromagnet 433, and the lower push plate 2931 of the outer protective cover is located directly above the traction electromagnet 434.

[0126] b. The electric push rod B431 of the storage tank outer cover dismounting device is raised to drive the annular electromagnet 433 to move upwards. When the annular electromagnet 433 contacts the lower adsorption plate 2923, the annular electromagnet 435 is energized to adsorb the lower adsorption plate 2923. Then, the traction electromagnet 434 is raised to contact the lower push plate 2931, and then the lower push plate 2931 is pushed upwards to move against the elastic force of the spring 295, driving the L-shaped rocker 294 to rotate outward of the storage tank (counterclockwise) around its hinge, so that the hook part 2941 of the L-shaped rocker 294 is separated from the upper end surface of the upper pressing plate 215, thereby unlocking the outer protective cover from the target storage tank.

[0127] c. The traction electromagnet 434 of the storage tank outer cover dismounting device is energized to adsorb the lower push plate 2931, so that the L-shaped rocker 294 remains in the current pose. Then, the electric push rod B431 is lowered to move the outer protective cover downwards, so that the outer protective cover is completely separated from the target storage tank.

[0128] d. Repeat steps a-c to dismount the outer protective cover of the storage tank in all placement stations B on the storage tank translation trolley in sequence.

[0129] S03. The multiple-tank storage tank is sequentially fed into the transfer tank.

[0130] a. The rotating drive motor A412 in the transfer tank rotating device is started to drive the transfer tank placed in the placement station A417 to rotate to the first docking position, so that the upper sealing cover 32 of the transfer tank is located directly below the electromagnetic chuck 453 of the transfer tank upper cover dismounting device.

[0131] b. The target storage tank is moved to the fifth docking position by the storage tank translation trolley, so that the discharge port A212 of the storage tank is directly above the upper movable pipe 463 of the lower pipe docking device;

[0132] c. The lifting drive device B451 of the transfer tank upper cover dismounting device is lowered, driving the electromagnetic chuck 453 to lower. When the electromagnetic chuck 453 contacts the target upper sealing cover 32 of the transfer tank, the electromagnetic chuck 453 is powered to attract the target upper sealing cover 32. Then, the lifting drive device B451 is raised, driving the electromagnetic chuck 453 and the upper sealing cover 32 to move upwards, thereby dismounting the target upper sealing cover 32 from the target feed port 313 of the transfer tank, exposing the target feed port 313 of the transfer tank;

[0133] d. The rotary drive motor A412 of the transfer tank rotating device is started, driving the transfer tank placed in the installation station A417 to rotate to the second docking position, so that the target feed port 313 of the transfer tank is directly below the lower movable pipe 464 of the lower pipe docking device;

[0134] e. The two linear motors A465 of the lower pipe docking device act synchronously, driving the upper movable pipe 463 to move upwards through the transmission of the connecting rod A467, so that the upper end port of the upper movable pipe 463 is docked with the discharge port A212 of the target storage tank. The two linear motors B466 of the lower pipe docking device act synchronously, driving the lower movable pipe 464 to move downwards through the transmission of the connecting rod B468, so that the lower end port of the lower movable pipe 464 is docked with the target feed port 313 of the transfer tank;

[0135] f. The rotary drive motor B443 of the storage tank inner cover opening and closing device is started, driving the docking disc 444 to rotate by a certain angle, so that the finger 4441 of the docking disc 444 is directly opposite the insertion hole A241 of the operation disc A24 of the target storage tank. At the same time, the lifting drive device A442 is started, driving the docking disc 444 to move downwards, so that the finger 4441 of the docking disc 444 is inserted into the insertion hole A241 of the operation disc A24 of the target storage tank. Then, the rotary drive motor B443 of the storage tank inner cover opening and closing device is started, driving the docking disc 444 to rotate, driving the operation disc A24 and the lead screw A22 of the target storage tank to rotate, and then driving the nut A23 to move downwards along the lead screw A22. The nut A23 drives the inner sealing cover A28 to move downwards through the inner sleeve A25 and the extension rod A27, so that the inner sealing cover A28 is separated from the discharge port A212 of the target storage tank, thereby forming an annular gap for the powder material to fall. The powder material in the inner cavity A211 of the target storage tank falls through the annular gap, and then sequentially passes through the upper movable pipe 463, the middle pipe 462, the lower movable pipe 464, and the target feed port 313 of the transfer tank, and enters the inner cavity B311 of the transfer tank;

[0136] g. After the powder material in the target storage tank is completely discharged, perform the following three operations simultaneously: 1. The two linear motors A465 in the lower pipe docking device operate synchronously, driving the upper movable pipe 463 downward through the transmission of connecting rod A467, so as to avoid interfering with the subsequent movement of the storage tank translation trolley; 2. The two linear motors B466 in the lower pipe docking device operate synchronously, driving the lower movable pipe 464 upward through the transmission of connecting rod B468, so as to avoid interfering with the subsequent rotation of the transfer tank located on the transfer tank rotation device; 3. The storage tank inner cover opening and closing device... The rotary drive motor B443 in the center starts, driving the docking plate 444 to rotate, which in turn drives the operating plate A24 and the lead screw A22 of the target storage tank to rotate, thereby driving the nut A23 to move downward along the lead screw A22. The nut A23 drives the inner sealing cover A28 to move downward through the inner sleeve A25 and the extension rod A27, so that the inner sealing cover A28 fits and closes the discharge port A212 of the target storage tank. Then, the lifting drive device A442 starts, driving the docking plate 444 to move upward, so that the finger rod 4441 of the docking plate 444 exits the insertion hole A241 of the operating plate A24 of the target storage tank.

[0137] h. The rotary drive motor A412 of the transfer tank rotation device starts, driving the transfer tank in the placement station A417 to rotate to the first docking position, so that the target feed port 313 of the transfer tank rotates to the electromagnetic chuck 453 of the transfer tank cover removal and assembly device.

[0138] i. The lifting drive device B451 of the transfer tank cover removal and assembly device descends, driving the electromagnetic chuck 453 to descend, inserting the target upper sealing cover 323 adsorbed on the electromagnetic chuck 453 into the target feed inlet 313 of the transfer tank; the electromagnetic chuck 453 is de-energized, releasing the adsorption state with the target upper sealing cover 323; the lifting drive device B451 rises, driving the electromagnetic chuck 453 to rise, so as to avoid interfering with the subsequent rotation of the transfer tank located on the transfer tank rotation device;

[0139] j. Repeat steps a to i to connect the other storage tanks on the storage tank transfer trolley with the transfer tank in sequence and feed them in, ensuring that all the feed ports 313 on the transfer tank correspond one-to-one with all the storage tanks on the storage tank transfer trolley (i.e., each feed port 313 on the transfer tank is only allowed to be connected once).

[0140] In this step, the ball valve in the negative pressure dust removal device is opened, and the negative pressure fan 475 is started, and the negative pressure is conducted to the filter unit 471 through the negative pressure fan 475, the hose 474, the main pipe 472 and the branch pipe 473 in turn, and the dust in the upper part of the cavity B311 of the transfer tank is sucked through all the filter units 471, and the dust is intercepted in the filter unit 471, and the filtered air is discharged into the external environment through the branch pipe 473, the main pipe 472, the hose 474 and the negative pressure fan 475 in turn.

[0141] In this step, after all the storage tanks on the material tank translation trolley are completed (corresponding to the end of sub-step f - before sub-step g starts), the negative pressure fan 475 is closed first, then the ball valve on the total gas outlet of the main pipe 472 is closed, and finally the hose 474 is disconnected from the total gas outlet of the main pipe 472.

[0142] In this step, the transfer tank rotating device should avoid driving the transfer tank to always rotate in one direction, thereby preventing the hose from winding on the transfer tank.

[0143] S04, transfer the transfer tank to the transfer tank translation trolley:

[0144] a. The rotation driving motor A412 of the transfer tank rotating device is started to drive the upper turntable 413 to rotate, so that the inlet and outlet A416 of the transfer tank rotating device is opposite to the first conveying belt 100; then, the limiting electromagnet 4141 is de-energized to release the locking state of the transfer tank in the positioning station A417; then, the roller moves the transfer tank to the direction close to the inlet and outlet A416, and in the moving process, two rows of first guide rollers 415 are in contact with two surfaces on the guide section 314 of the transfer tank respectively, which plays a role in limiting the moving path of the transfer tank, until the transfer tank is discharged from the inlet and outlet A416 to the outside of the transfer tank rotating device;

[0145] b. After the transfer tank is discharged to the outside of the transfer tank rotating device, it enters the rolling conveying surface B of the transfer tank translation trolley through the first conveying belt 100, the transfer elevator 18, the second conveying belt 200 and the inlet and outlet B517 of the transfer tank translation trolley in turn;

[0146] c. The roller on the transfer tank translation trolley is started, driving the transfer tank to move to the central area of the rolling conveying surface B. During the movement, the two rows of second guide rollers 515 are in contact with two surfaces on the guide section 314 of the transfer tank, playing a role in limiting the movement path of the transfer tank. When the transfer tank moves to the central area of the rolling conveying surface B, the roller stops running, and the front and rear air cylinders 517 and 519 are started, respectively, driving the front and rear limit plates 516 and 518 to extend above the rolling conveying surface B, so that the front and rear limit plates 516 and 518 are in contact with the other two surfaces on the guide section 314 of the transfer tank, thereby locking the transfer tank in the placement station C510 of the transfer tank translation trolley.

[0147] S05, the transfer tank is thrown into the transfer bin:

[0148] a. The rotary drive motor D524 of the upper pipe docking device is started, rotating the cover plate 526 through the second extension rod 525 to open the upper port of the docking pipe 522 in the lower limit position. The transfer tank translation trolley drives the transfer tank to move from the tank conveying position to the feeding position, so that the transfer tank is vertically opposite to the upper pipe docking device. Then, the lifting drive device C521 of the upper pipe docking device is started, driving the docking pipe 522 to rise from the lower limit position to the upper limit position, so that the discharge port B312 of the transfer tank is contained in the upper port of the docking pipe 522. At this time, the lower port of the docking pipe 522 is still inserted into the feeding port 161 of the transfer bin 16.

[0149] b. The rotary drive motor C533 of the transfer tank inner cover opening and closing device is started, rotating the plug-in disc 534 by a certain angle, so that the plug rod 5341 at the lower end of the plug-in disc 534 is opposite to the plug hole B351 in the operation disc B35 of the transfer tank. Then, the lifting drive device C521 is started, driving the plug-in disc 534 to move downward, so that the plug rod 5341 at the lower end of the plug-in disc 534 is inserted into the plug hole B351 of the operation disc B35 of the transfer tank. Next, the rotary drive motor C533 is started, driving the plug-in disc 534 to rotate, driving the operation disc B35 and the screw rod B33 of the transfer tank to rotate, and then driving the nut B34 to move downward along the screw rod B33. The nut B34 drives the inner sealing cover B39 to move downward through the inner sleeve B36 and the extension rod B38, so that the inner sealing cover B39 is separated from the discharge port B312 of the transfer tank, thereby forming an annular gap for the powder material to fall. The powder material in the inner cavity B311 of the transfer tank falls through the annular gap, and then enters the inside of the transfer bin 16 through the docking pipe 522 and the feeding port 161 in turn.

[0150] c. After the powder material in the transfer tank is discharged completely, the two linear motors A465 in the lower pipe docking device act synchronously, respectively driving the upper movable pipe 463 to move downward through the transmission of the connecting rod A467, so as to avoid interference and avoid subsequent movement of the storage tank translation trolley.

[0151] d. The rotation driving motor C533 in the inner cover opening and closing device of the transfer tank is started, driving the plug-in disc 534 to rotate, driving the operation disc B35 and the screw rod B33 of the transfer tank to rotate, and further driving the nut B34 to move upwards along the screw rod B33. The nut B34 drives the inner sealing cover B39 to move upwards through the inner sleeve B36 and the extension rod B38, so that the inner sealing cover B39 is attached to the discharge port B312 of the transfer tank, thereby closing the discharge port B312 of the transfer tank. Then, the lifting driving device C521 is started, driving the plug-in disc 534 to move upwards, so that the plug-in rod 5341 at the lower end of the plug-in disc 534 exits the plug hole B351 of the operation disc B35 of the transfer tank. Thus, the feeding operation is completed.

[0152] In this step, the upper end of the transfer bin 16 is provided with a negative pressure dust collection port (not shown in the figure), which is in communication with an external negative pressure source. When the powder material enters the transfer bin 16, the external negative pressure source is started immediately to perform negative pressure dust removal operation on the upper end of the transfer bin 16, so as to avoid the powder material from floating out of the inlet port 161.

[0153] S06, recycling the empty transfer tank:

[0154] a. The front cylinder 517 and the rear cylinder 519 on the transfer tank translation trolley are started respectively, driving the front limiting plate 516 and the rear limiting plate 518 to retract below the rolling conveying surface B, so that the front limiting plate 516 and the rear limiting plate 518 are separated from the two surfaces on the guide section 314 of the transfer tank, thereby releasing the locking state of the transfer tank in the placement station C510;

[0155] b. The transfer tank translation trolley drives the transfer tank to move from the feeding position to the transfer position, so that the inlet and outlet B517 of the transfer tank translation trolley is in close proximity to the second conveying belt 200. Then, the roller on the transfer tank translation trolley is started, driving the transfer tank to move towards the inlet and outlet B517. During the movement, the two rows of second guide rollers 515 are in contact with the two surfaces on the guide section 314 of the transfer tank respectively, playing a role in limiting the movement path of the transfer tank, until the transfer tank is discharged from the inlet and outlet B517 to the outside of the transfer tank translation trolley;

[0156] c. After the transfer tank is discharged to the outside of the transfer tank rotation device, it sequentially passes through the second conveying belt 200, the transfer elevator 18, the first conveying belt 100, and the inlet and outlet A416 of the transfer tank rotation device, and enters the rolling conveying surface A of the transfer tank rotation device. Then, the empty transfer tank is adjusted away from the rolling conveying surface A of the transfer tank rotation device by the suspension crane, thereby completing the recycling of the transfer tank.

[0157] Preferably, the feeding operation further comprises an M step which is executed after the S03 step and before or after the S04, S05 and S06 steps.

[0158] M, the outer protective cover of the installation of the storage tank:

[0159] a, the storage tank translation trolley drives the target storage tank with the disassembled outer protective cover to the fourth docking position. Since the upper end of the storage tank outer cover dismounting device has been connected with the outer protective cover, the upper sealing disc 2921 of the outer protective cover is located directly below the upper pressing plate 215 of the storage tank;

[0160] b, the electric push rod B431 of the storage tank outer cover dismounting device rises, driving the outer protective cover to move upwards. When the upper sealing disc 2921 of the outer protective cover is attached to the upper pressing plate 215 of the storage tank, the discharge port A212 of the storage tank is closed. Then, the traction electromagnet 434 is lowered, thereby driving the lower push plate 2931 to move downwards, and further driving the L-shaped rocker 294 to rotate inwards of the storage tank (clockwise) around its hinge, so that the hook part 2941 of the L-shaped rocker 294 is latched on the upper end face of the upper pressing plate 215;

[0161] c, the traction electromagnet 434 and the annular electromagnet 433 of the storage tank outer cover dismounting device are powered off, so that the traction electromagnet 434 is released from the adsorbed state with the lower push plate 2931, and the annular electromagnet 433 is released from the adsorbed state with the lower adsorption plate 2923. Then, the electric push rod B431 is lowered, so that the outer protective cover is completely separated from the storage tank outer cover dismounting device. Based on the elastic force of the spring 295, the lower seat body 293 has a tendency to move downwards, thereby driving the L-shaped rocker 294 to have a tendency to rotate inwards of the storage tank around its hinge point, and further driving the hook part 2941 of the L-shaped rocker 294 to press tightly on the upper end face of the upper pressing plate 215. Thus, the outer protective cover has been installed on the target storage tank;

[0162] d, repeat the a-c steps to install the outer protective cover on all the storage tanks on the storage tank translation trolley in turn.

[0163] The feeding operation of the radioactive powder material automatic feeding system corresponding to the embodiment 1 is as follows:

[0164] S01, respectively dispose the storage tank and the transfer tank;

[0165] S02, dismount the outer protective cover of the storage tank;

[0166] S03, feed the multi-tank storage tank into the transfer tank in turn;

[0167] S04, transfer the transfer tank to the transfer tank translation trolley;

[0168] S05, feed the transfer tank into the transfer bin;

[0169] S06, recycle the empty transfer tank.

[0170] Preferably, the feeding operation further comprises a step M, which is performed after the step S03 and before or after the steps S04, S05, S06; M, installing the outer protective cover of the storage tank.

[0171] The steps S01-S02, S04-S06 and M are the same as the feeding operation in Example 2, and will not be described again. The only difference between the feeding operation in Example 1 and Example 2 is the step S03, which will be described as follows.

[0172] S03, feeding the multiple storage tanks into the transfer tank in sequence:

[0173] a. The rotary drive motor A412 in the transfer tank rotating device is started to drive the transfer tank placed in the installation station A417 to rotate to the first docking position, so that the upper sealing cover 32 of the transfer tank is located directly below the electromagnetic suction disc 453 of the transfer tank upper cover dismounting device;

[0174] b. The target storage tank is moved to the fifth docking position by the storage tank translation trolley, so that the discharge port A212 of the storage tank is located directly above the upper movable pipeline 463 of the lower pipeline docking device;

[0175] c. The lifting drive device B451 of the transfer tank upper cover dismounting device is lowered to drive the electromagnetic suction disc 453 to descend. When the electromagnetic suction disc 453 contacts the upper sealing cover 32 of the transfer tank, the electromagnetic suction disc 453 is powered to suck the upper sealing cover 32. Then, the lifting drive device B451 is raised to drive the electromagnetic suction disc 453 and the upper sealing cover 32 to move upwards, thereby dismounting the upper sealing cover 32 from the feed port 313 of the transfer tank, so that the feed port 313 of the transfer tank is exposed;

[0176] d. The rotary drive motor A412 of the transfer tank rotating device is started to drive the transfer tank placed in the installation station A417 to rotate to the second docking position, so that the feed port 313 of the transfer tank is located directly below the lower movable pipeline 464 of the lower pipeline docking device;

[0177] e. The two linear motors A465 of the lower pipeline docking device act synchronously to drive the upper movable pipeline 463 to move upwards through the transmission of the connecting rod A467, so that the upper end port of the upper movable pipeline 463 is docked with the discharge port A212 of the target storage tank. The two linear motors B466 of the lower pipeline docking device act synchronously to drive the lower movable pipeline 464 to move downwards through the transmission of the connecting rod B468, so that the lower end port of the lower movable pipeline 464 is docked with the feed port 313 of the transfer tank;

[0178] f、the rotation driving motor B443 of the inner cover opening and closing device of the storage tank is started, the butt joint disc 444 is driven to rotate by a certain angle, the finger rod 4441 of the butt joint disc 444 is opposite to the insertion hole A241 of the operation disc A24 of the target storage tank; at the same time, the lifting driving device A442 is started, the butt joint disc 444 is driven to move downwards, the finger rod 4441 of the butt joint disc 444 is inserted into the insertion hole A241 of the operation disc A24 of the target storage tank; then, the rotation driving motor B443 of the inner cover opening and closing device of the storage tank is started, the butt joint disc 444 is driven to rotate, the operation disc A24 and the screw rod A22 of the target storage tank are driven to rotate, the nut A23 is driven to move downwards along the screw rod A22, the inner sealing cover A28 is driven to move downwards by the inner sleeve A25 and the extension rod A27, the inner sealing cover A28 is separated from the discharge port A212 of the target storage tank, and an annular gap for the powder material to fall is formed; the powder material in the inner cavity A211 of the target storage tank falls through the annular gap, and then falls through the upper movable pipeline 463, the middle pipeline 462, the lower movable pipeline 464, and the feed port 313 of the transfer tank into the inner cavity B311 of the transfer tank in sequence;

[0179] g、after the powder material in the target storage tank is discharged, the following three operations are simultaneously performed: 1, the two linear motors A465 in the lower pipeline butt joint device are synchronously actuated, the upper movable pipeline 463 is driven to move downwards through the transmission of the connecting rod A467, so as to avoid interference with the subsequent movement of the storage tank translation trolley; 2, the two linear motors B466 in the lower pipeline butt joint device are synchronously actuated, the lower movable pipeline 464 is driven to move upwards through the transmission of the connecting rod B468, so as to avoid interference with the subsequent rotation of the transfer tank located on the transfer tank rotating device; 3, the rotation driving motor B443 of the inner cover opening and closing device of the storage tank is started, the butt joint disc 444 is driven to rotate, the operation disc A24 and the screw rod A22 of the target storage tank are driven to rotate, the nut A23 is driven to move downwards along the screw rod A22, the inner sealing cover A28 is driven to move downwards by the inner sleeve A25 and the extension rod A27, the inner sealing cover A28 is attached to and closes the discharge port A212 of the target storage tank, then the lifting driving device A442 is started, the butt joint disc 444 is driven to move upwards, and the finger rod 4441 of the butt joint disc 444 is withdrawn from the insertion hole A241 of the operation disc A24 of the target storage tank;

[0180] h、the steps a~g are repeated, so that the other storage tanks on the storage tank translation trolley are sequentially butt jointed and fed to the transfer tank;

[0181] i、after all the storage tanks on the storage tank translation trolley are completed, the rotation driving motor A412 of the transfer tank rotating device is started, the transfer tank in the setting station A417 is driven to rotate to the first butt joint position, the feed port 313 of the transfer tank is rotated to be directly below the electromagnetic chuck 453 of the transfer tank upper cover dismounting device.

[0182] j, the lifting driving device B451 of the upper cover dismounting device of the transfer tank is lowered, the electromagnetic chuck 453 is lowered, and the upper sealing cover 323 adsorbed on the electromagnetic chuck 453 is inserted into the feed inlet 313 of the transfer tank; the electromagnetic chuck 453 is powered off, and the adsorption state with the upper sealing cover 323 is released; the lifting driving device B451 is raised, and the electromagnetic chuck 453 is raised to avoid interference with the subsequent rotation of the transfer tank on the transfer tank rotating device.

[0183] In this step, the vibration motor 30 is started, the ball valve in the negative pressure dust removal device is opened, the negative pressure fan 475 is started, and the negative pressure is conducted to the filter unit 471 through the negative pressure fan 475, the hose 474, the main pipe 472 and the branch pipe 473 in turn. The dust in the upper part of the inner cavity B311 of the transfer tank is sucked through all the filter units 471, the dust is intercepted in the filter units 471, and the filtered air is discharged into the external environment through the branch pipe 473, the main pipe 472, the hose 474 and the negative pressure fan 475 in turn.

[0184] In this step, after all the storage tanks on the material tank translation trolley complete feeding (corresponding to the end of sub-step f-before sub-step g begins), the negative pressure fan 475 is closed first, then the ball valve on the total gas outlet of the main pipe 472 is closed, and finally the connection between the hose 474 and the total gas outlet of the main pipe 472 is disconnected.

[0185] In this step, the transfer tank rotating device should avoid driving the transfer tank to always rotate in one direction, thereby preventing the hose from winding on the transfer tank.

Claims

1. A radioactive powder material collection assembly, including a plant; the plant has a single-story space, an elevated slide is installed in the single-story space, and a horizontal track A is installed on the elevated slide; Its characteristics are: It also includes storage tanks, transfer tanks, transfer tank rotating devices, storage tank translation trolleys, storage tank outer cover disassembly and assembly devices, storage tank inner cover opening and closing devices, transfer tank upper cover disassembly and assembly devices, and lower pipeline docking devices. The storage tank has an inner cavity A inside, and a discharge port A at the bottom of the storage tank. The storage tank is equipped with an inner sealing cover A and an outer protective cover on the inner and outer sides of the discharge port A, respectively. The transfer tank has an inner cavity B with a volume several times that of inner cavity A. The top of the transfer tank has a feed inlet with a detachable upper sealing cover. The bottom of the transfer tank has a discharge port B with an inner sealing cover B inside the discharge port B. The transfer tank rotation device is located directly below the overhead slide table, and a placement station A for positioning the transfer tank is provided on it; The storage tank translation trolley can be moved and installed on the horizontal track A, which is equipped with multiple placement stations B for positioning the storage tank; The storage tank outer cover removal and assembly device is located directly below the overhead slide table. It is used to remove and assemble the outer protective cover of the storage tank located in the placement station B. The storage tank outer cover removal and assembly device includes an electric push rod B, a bracket, a ring electromagnet, and a traction electromagnet. The cylinder of the electric push rod B is directly or indirectly fixedly installed on the ground floor. The piston rod of the electric push rod B extends vertically upward. The bracket is directly or indirectly fixedly connected to the piston rod of the electric push rod B. The top of the bracket has a central hole B, which contains an electromagnet mounting cavity that connects to the central hole B. The ring electromagnet is fixedly installed on the upper end of the bracket. It has a central hole C at its center, which encloses the central hole B of the bracket. The lower end of the traction electromagnet is fixedly installed in the electromagnet mounting cavity of the bracket. The upper end extends out of the central hole B of the bracket and is located in the central hole C of the ring electromagnet. The upper end of the traction electromagnet moves vertically back and forth in a straight line, thereby extending to the upper end of the ring electromagnet or retracting into the central hole C of the ring electromagnet. The inner cover opening and closing device of the storage tank is installed on the overhead slide table. It is used to control the movement of the inner sealing cover A of the storage tank located in the placement station B, so as to fit or separate it from the discharge port A. The transfer tank cover removal and installation device is installed on the overhead slide table, and is used to remove and install the upper sealing cover of the transfer tank located in the placement station A; The lower pipeline connection device is set between the transfer tank rotating device and the storage tank translation trolley, and is used to connect the storage tank located in the placement station B with the transfer tank located in the placement station A.

2. The radioactive powder material assembly as described in claim 1, characterized in that: The storage tank includes a tank body A, a lead screw A, a nut A, an operating panel A, an inner sleeve A, an outer sleeve A, an extension rod A, an inner sealing cover A, and an outer protective cover. Four support legs are evenly welded in a ring shape at the lower end of the tank body A. The tank body A has an inner cavity A inside, and a discharge port A is located at the bottom of the tank body A. An annular step is provided on the lower outer wall of the tank body A near the discharge port A. An annular upper pressure plate is fixedly installed on the annular step of the tank body A, extending radially outward from the storage tank. The lead screw A is movably installed in the inner cavity A of the tank body A and is arranged axially at the center of the inner cavity A. The lead screw A has an operating section, a smooth section, and a threaded section from top to bottom. The operating section of the lead screw A extends outward from the upper part of the tank body A. At one end, lead screw A is rotatably connected to tank body A via tapered roller bearings in its smooth section; nut A is threadedly connected to the threaded section of lead screw A, and nut A has a guide groove A on its outer wall surface; operating disc A is fixedly installed on the operating section of lead screw A, and operating disc A has multiple insertion holes A evenly distributed in a ring around lead screw A; inner sleeve A is fixedly connected to nut A, and its inner hole encloses the threaded section of lead screw A; outer sleeve A has a guide rib on its inner side, which is fixedly installed on tank body A on its outer side, and slides with the guide groove A of nut A on its inner side through the guide rib, and is movably fitted onto the outside of inner sleeve A through its inner hole; the upper end of extension rod A is fixedly connected to the lower end of inner sleeve A; the inner sealing cover A is conical annular and fixed. The outer protective cover is fixedly installed at the lower end of the extension rod A, and is used to open or close the discharge port A at the bottom of the tank A. The outer protective cover includes an upper seat, a lower seat, a spring, and an L-shaped rocker arm. The upper seat includes an upper sealing plate, a folded connecting plate, and a lower adsorption plate, which are fixedly connected from top to bottom. The upper end face of the upper sealing plate is used to fit or separate from the upper pressure plate of the storage tank, thereby opening or closing the discharge port A of the storage tank. The lower end face of the upper sealing plate has an annular boss X for accommodating the spring in its central area. Multiple folded connecting plates are evenly distributed in a ring around the annular boss X between the upper sealing plate and the lower adsorption plate. The upper end of the folded connecting plate is welded to the lower end face of the upper sealing plate, and the lower end of the folded connecting plate is welded to the upper end face of the lower adsorption plate. The lower adsorption plate has a central part at its center. A central hole A is provided for the lower seat to pass through; the lower seat includes a lower push plate and an upper annular plate fixedly connected from bottom to top; the upper end face of the lower push plate is provided with an annular boss Y for accommodating the spring in the central area; the upper end face of the lower push plate is provided with multiple guide grooves X evenly distributed in a ring around the annular boss Y; the upper annular plate is located at the upper end of the annular boss Y and extends radially outward from the annular boss Y; the lower seat has an annular opening between the outer side of the annular boss Y, the lower end of the upper annular plate, and the upper end of the lower push plate; the lower seat is movably inserted into the lower opening of the annular boss X of the upper seat through the upper opening of the annular boss Y, thereby connecting the annular boss X of the upper seat with the annular boss Y of the lower seat to form a spring mounting cavity.The L-shaped rocker arm has a hook at the upper end, a roller A at the lower end, and a turning section in the middle. The turning section of the L-shaped rocker arm is hinged to the lower end of the angled connecting plate. The roller A of the L-shaped rocker arm is confined within the annular opening, and the lower end of the roller A is embedded in the guide groove X. A spring compression mechanism is installed in the spring mounting cavity. Through its elastic force, it forces the lower seat to move away from the upper seat, thereby causing the L-shaped rocker arm to rotate around its hinge point towards the inside of the storage tank, so that the hook of the L-shaped rocker arm hooks onto the upper pressure plate of the storage tank. When an external force pushes the lower seat to move closer to the upper seat, it causes the L-shaped rocker arm to rotate around its hinge point towards the outside of the storage tank, so that the hook of the L-shaped rocker arm disengages from the upper pressure plate of the storage tank.

3. The radioactive powder material assembly as described in claim 2, characterized in that: The storage tank translating trolley includes a trolley body A and an electric push rod A. Rollers B are located at the lower end of trolley body A, and multiple horizontally arranged guide rollers are located at the upper end of trolley body A. All guide rollers together form multiple U-shaped areas, which are the placement stations B. Each placement station B has a material discharge hole A. Trolley body A is rolled on a horizontal track A via rollers B. The cylinder of the electric push rod A is fixedly installed on the horizontal track A, and the piston rod of the electric push rod A is fixedly connected to the trolley body A. When the piston rod of the electric push rod A extends or retracts, it drives the trolley body A to move horizontally and reciprocally in a straight line along the horizontal track A. When the storage tank is placed in any of the placement positions B of the storage tank translation trolley, the discharge port A of the storage tank is directly opposite the discharge hole A in the placement position B; when the storage tank is placed in the target placement position B on the storage tank translation trolley, the guide rollers located on the four sides of the target placement position B contact the four legs at the lower end of the storage tank to correct and adjust the posture of the storage tank, thereby confining the storage tank in the placement position B; when the storage tank translation trolley moves the storage tank placed in the placement position B, there are a third docking position, a fourth docking position and a fifth docking position in the movement path of the storage tank.

4. The radioactive powder material assembly as described in claim 3, characterized in that: When the storage tank with the outer protective cover moves to the fourth docking position, and the storage tank outer cover removal and installation device does not attract the outer protective cover, the lower adsorption plate of the outer protective cover is located directly above the annular electromagnet, and the lower push plate of the outer protective cover is located directly above the traction electromagnet; when the storage tank without the outer protective cover moves to the fourth docking position, and the storage tank outer cover removal and installation device attracts the outer protective cover, the lower adsorption plate of the outer protective cover is magnetically attracted to the annular electromagnet, the lower push plate of the outer protective cover is magnetically attracted to the traction electromagnet, and the upper sealing plate of the outer protective cover is located directly below the upper pressure plate of the storage tank.

5. The radioactive powder material assembly as described in claim 4, characterized in that: The storage tank inner cover opening and closing device includes a gantry frame A, a lifting drive device A, a rotary drive motor B, and a docking plate; the gantry frame A is directly or indirectly fixedly installed on the overhead slide; the lifting drive device A is fixedly installed on the gantry frame A; the rotary drive motor B is fixedly installed on the lifting drive device A, and is driven by the lifting drive device A to move vertically up and down; the docking plate is fixedly connected to the lower end of the rotary drive motor B, and is driven by the rotary drive motor B to rotate horizontally, and the lower end of the docking plate is provided with multiple finger rods for inserting into the insertion holes A of the storage tank operation plate A; when the storage tank moves to the third docking position, the storage tank operation plate A is located directly below the docking plate of the storage tank inner cover opening and closing device.

6. The radioactive powder material collection assembly as described in claim 5, characterized in that: a transfer... The tank includes a tank body B, an upper sealing cover, a lead screw B, a nut B, an operating panel B, an inner sleeve B, an outer sleeve B, an extension rod B, and an inner sealing cover B. The lower end of the tank body B has a guide section, which is a regular square prism with rounded edges. The tank body B has an inner cavity B, a discharge port B at the bottom, and multiple feed ports at the top, all evenly distributed in a ring around the center line of the tank body B. The upper sealing cover is detachably installed on each feed port. The lead screw B is movably installed in the inner cavity B of the tank body B, with its axis coinciding with the center line of the tank body B. From top to bottom, the lead screw B has an operating section, a smooth section, and a threaded section. The operating section of the lead screw B extends from the upper end of the tank body B. The lead screw B passes through a conical roller in the smooth section... The sub-bearing is rotatably connected to the tank body B; the nut B is threadedly connected to the threaded section of the lead screw B, and the nut B has a guide groove B on its outer wall surface; the operating disc B is fixedly installed on the operating section of the lead screw B, and has multiple insertion holes B evenly distributed in a ring around the lead screw B; the inner sleeve B is fixedly connected to the nut B and encloses the threaded section of the lead screw B; the outer sleeve B is fitted outside the inner sleeve B, and has a guide strip on its inner side. It is fixedly installed on the tank body B on the outer side, and slides in cooperation with the guide groove B of the nut B on the inner side through the guide strip; the upper end of the extension rod B is fixedly connected to the lower end of the inner sleeve B; the inner sealing cover B is conical and fixedly connected to the lower end of the extension rod B, and is used to open or close the discharge port B at the bottom of the tank body B; The material collection assembly also includes a negative pressure dust removal device; the negative pressure dust removal device includes filter units, branch pipes, a main pipe, hoses, and a negative pressure fan; multiple filter units are evenly distributed in a ring on the top of tank B of the transfer tank, and each filter unit is equipped with a filter element for filtering radioactive dust. The two ends of the filter unit are the air inlet and the air outlet, respectively, and the air inlet of the filter unit extends into the inner cavity B of the transfer tank; the number of filter units is the same as the number of feed inlets, and a filter unit is set in the middle position between every two adjacent feed inlets; the main pipe is equipped with The system has one main air outlet and multiple air inlets, with the number of air inlets matching the number of filter units. The main air outlet is equipped with a ball valve for controlling airflow and a quick-connect fitting for connecting hoses. The number of branch pipes matches the number of filter units. One end of each branch pipe connects to the exhaust end of the corresponding filter unit, and the other end connects to the corresponding air inlet on the main pipe. One end of each hose is detachably connected to the quick-connect fitting on the main air outlet of the main pipe, and the other end is detachably connected to the air inlet of the negative pressure fan. The air outlet of the negative pressure fan is open to the atmosphere.

7. The radioactive powder material collection assembly as described in claim 5, characterized in that: a transfer... The tank includes a tank body B, an upper sealing cover, a lead screw B, a nut B, an operating panel B, an inner sleeve B, an outer sleeve B, an extension rod B, an inner sealing cover B, and a vibration motor. The lower end of the tank body B has a guide section, which is a regular square prism with rounded edges. The tank body B has an inner cavity B, a discharge port B at the bottom, and a feed port at the top. The upper sealing cover is detachably installed on the feed port. The lead screw B is movably installed in the inner cavity B of the tank body B, with its axis coinciding with the center line of the tank body B. The lead screw B has an operating section, a smooth section, and a threaded section from top to bottom. The operating section of the lead screw B extends from the upper end of the tank body B, and the smooth section of the lead screw B is rotatably connected to the tank body B via a tapered roller bearing. The nut B is threaded... A threaded connection is made to the threaded section of the lead screw B, and a nut B has a guide groove B on its outer wall surface; an operating disc B is fixedly installed on the operating section of the lead screw B, and has multiple insertion holes B evenly distributed in a ring around the lead screw B; an inner sleeve B is fixedly connected to the nut B and encloses the threaded section of the lead screw B; an outer sleeve B is fitted over the inner sleeve B, and has a guide strip on its inner side. It is fixedly installed on the tank body B on the outer side, and slides in cooperation with the guide groove B of the nut B on the inner side through the guide strip; the upper end of the extension rod B is fixedly connected to the lower end of the inner sleeve B; the inner sealing cover B is conical and fixedly connected to the lower end of the extension rod B, and is used to open or close the discharge port B at the bottom of the tank body B; a vibrating motor is fixedly installed on the upper side wall of the tank body B. The material collection assembly also includes a negative pressure dust removal device; the negative pressure dust removal device includes filter units, branch pipes, a main pipe, hoses, and a negative pressure fan; multiple filter units and a feed inlet are evenly distributed in a ring on the top of tank B of the transfer tank. Each filter unit contains a filter element for filtering radioactive dust. The two ends of the filter unit are the air inlet and the air outlet, respectively. The air inlet of the filter unit extends into the inner cavity B of the transfer tank; the main pipe has one main air outlet and multiple air inlets, the number of which is the same as the number of filter units. The main air outlet is equipped with a ball valve for controlling the airflow; the number of branch pipes is the same as the number of filter units. One end of the branch pipe is connected to the exhaust end of the corresponding filter unit, and the other end of the branch pipe is connected to the corresponding air inlet on the main pipe; one end of the hose is detachably connected to the main air outlet of the main pipe through a quick-connect fitting, and the other end is detachably connected to the air inlet of the negative pressure fan. The air outlet of the negative pressure fan is open to the atmosphere.

8. The radioactive powder material collection assembly as described in claim 6 or 7, characterized in that: a transfer... The tank rotating device includes a lower base, a rotary drive motor A, an upper turntable, a limiting frame, and a first guide roller. The lower base is directly or indirectly fixedly installed on a single-level floor. The rotary drive motor A is fixedly installed on the lower base. The upper turntable is fixedly installed on the upper end of the rotary drive motor A, and rotates horizontally under the drive of the rotary drive motor A. Multiple rollers are arranged horizontally and parallel to each other on the upper end of the upper turntable, forming three parallel rows. The middle row of rollers is non-electrically driven, and the two rows on either side are electrically driven. A rolling conveying surface A is formed above all the rollers, with one end of the rolling conveying surface A in the conveying direction serving as the inlet / outlet A. The limiting frame is fixedly installed on the upper turntable and located at the other end of the rolling conveying surface A in the conveying direction. An embedded limiting electromagnet is installed; two rows of first guide rollers are vertically arranged and rotatably mounted on the upper turntable, located on both sides of the conveying direction of the rolling conveying surface A. Each row of first guide rollers consists of multiple vertically arranged first guide rollers arranged in a horizontal row; the two rows of first guide rollers and the limiting frame together form the placement station A; when the transfer tank enters the rolling conveying surface A through the inlet and outlet A, the two rows of first guide rollers respectively contact two surfaces on the guide section of the transfer tank, and the limiting electromagnet on the limiting frame is used to attract one surface on the guide section of the transfer tank, thereby confining the transfer tank in the placement station A; when the transfer tank rotating device rotates the transfer tank placed in the placement station A, there are a first docking position and a second docking position in the rotation path of the upper sealing cover of the transfer tank.

9. The radioactive powder material assembly as described in claim 8, characterized in that: The transfer tank cover removal and installation device includes a lifting drive device B, a first extension rod, and an electromagnetic chuck; the lifting drive device B is directly or indirectly fixedly installed on the overhead slide; the upper end of the first extension rod is fixedly connected to the lifting drive device B, and is driven by the lifting drive device B to move vertically up and down; the electromagnetic chuck is fixedly connected to the lower end of the first extension rod; when the transfer tank rotates to the first docking position, the upper sealing cover of the transfer tank is directly below the electromagnetic chuck of the transfer tank cover removal and installation device, so as to facilitate the removal or installation of the upper sealing cover of the transfer tank by the transfer tank cover removal and installation device.

10. The radioactive powder material assembly as described in claim 9, characterized in that: The lower pipe connection device includes a support A, a middle pipe, an upper movable pipe, a lower movable pipe, a linear motor A, a linear motor B, a connecting rod A, and a connecting rod B. Support A is fixedly mounted on an overhead slide. The middle pipe is fixedly mounted on support A. The upper and lower movable pipes are respectively movably inserted into the upper inner wall and lower outer wall of the middle pipe, and extend from the upper and lower ports of the middle pipe, respectively. The upper outer wall of the upper movable pipe has two oppositely arranged third hinges, and the lower outer wall of the lower movable pipe has two oppositely arranged fourth hinges. Linear motor A includes a base A, a guide rail A, and a slider A. Base A is fixedly mounted on the upper end of support A, guide rail A is horizontally mounted on base A, and slider A is slidably mounted on guide rail A. There are two linear motors A, symmetrically arranged relative to the middle pipe. Linear motor B includes a base B, guide rail B, and slider B. Base B is fixedly mounted on the lower end of support A, and guide rail B is horizontally mounted on guide rail B. Mounted on base B, slider B is slidably mounted on guide rail B. There are two linear motors B, symmetrically arranged relative to the central pipe. Two connecting rods A are distributed on both sides of the central pipe, one end of each connecting rod A is hinged to the slider A of the two linear motors A, and the other end of each connecting rod A is hinged to the two third hinge parts of the upper movable pipe. Two connecting rods B are also distributed on both sides of the central pipe, one end of each connecting rod B is hinged to the slider B of the two linear motors B, and the other end of each connecting rod B is hinged to the two fourth hinge parts of the lower movable pipe. When the transfer tank rotates to the second docking position, the inlet of the transfer tank is located directly below the lower movable pipe of the lower pipe docking device, so that the lower pipe docking device can dock with the transfer tank. When the storage tank moves to the fifth docking position, the outlet A of the storage tank is located directly above the upper movable pipe of the lower pipe docking device, so that the lower pipe docking device can dock with the storage tank.

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