Automatic feeding system for uranium chemical enrichment materials

Abstract

The automatic feeding system of uranium chemical enriched materials includes a base, a barrel turning device and a feeding and unloading device; a track is fixed on the base; the barrel turning device includes a bracket, a hanger, a turning drive mechanism and a barrel locking mechanism; the turning drive mechanism is associated with the hanger to drive the hanger to turn along a vertical plane; the feeding and unloading device includes a moving trolley A, a first shifting control mechanism, a barrel bearing frame and a second shifting control mechanism; the moving trolley A is movably installed on the track; the first shifting control mechanism controls the moving trolley A to move on the track, and then dock or avoid the hanger; the second shifting control mechanism controls the barrel bearing frame to move between the moving trolley A and the barrel locking area. The present invention can realize the automatic feeding operation of radioactive uranium chemical enriched materials, and the feeding process has high stability, reliability and automation, and the feeding effect is clean and thorough.

Description

Technical Field

[0001] The invention relates to the technical field of uranium purification related equipment, in particular to an automatic feeding system for uranium chemical enrichment materials. Background Art

[0002] The uranium chemical concentrate in the uranium purification and conversion process is a radioactive dry powder, block or paste-like concentrated material. When the above concentrated materials are transferred between related processes, they need to be fed. Due to the viscous physical properties of the above domestic concentrated materials and the differences in special barrels, the existing automatic feeding equipment on the market cannot be directly applied to the feeding operation of domestic uranium chemical concentrated materials.

[0003] Currently, in the industry, three operators are required to work together to achieve the above-mentioned feeding operation. One of them operates the overhead crane to lift the corresponding container (barrel) and move it to the feeding position, another uses a crowbar to insert the positioning hole on the top of the barrel to keep the barrel in an inverted state, and the third person uses a crowbar, shovel or rake to dig the concentrated material out of the barrel.

[0004] The above-mentioned feeding operation has the following disadvantages:

[0005] 1. Since the weight of the barrel filled with concentrated materials can reach about 1.5t, the physical strength of the operator is required to be high, and the labor intensity of the operator is extremely high;

[0006] 2. It takes three operators to cooperate well to complete the entire feeding operation, which requires the operators to have a high degree of proficiency and cooperation. Any operational error by any party may bring serious consequences, and the operator's own safety is difficult to guarantee;

[0007] 3. A component is welded at the bottom of the barrel, and a positioning hole is provided on the component to facilitate the operator to use a crowbar to exert force, which increases the structural complexity of the barrel and further increases the manufacturing cost of the barrel;

[0008] 4. During the feeding operation, the three operators had close contact with radioactive concentrated materials for a long time, posing a major occupational health hazard. Summary of the invention

[0009] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an automatic feeding system and feeding method for uranium chemical enrichment materials, which solves the problems of complicated feeding operation, high labor intensity and occupational health hazards of uranium purification and enrichment materials.

[0010] The technical solution of the present invention is: an automatic feeding system for uranium chemical enrichment materials, comprising a base, a barrel turning device and a feeding and unloading device;

[0011] A track is fixed on the base;

[0012] The barrel turning device includes a bracket, a hanger, a turning drive mechanism and a barrel locking mechanism; the bracket is fixedly mounted on the base; the hanger is movably mounted on the bracket; the turning drive mechanism is associated with the hanger to drive the hanger to turn along a vertical plane; the barrel locking mechanism is mounted on the hanger, and a barrel locking area is provided on the hanger;

[0013] The feeding and unloading device includes a mobile trolley A, a first movement control mechanism, a barrel carrier and a second movement control mechanism; the mobile trolley A is movably installed on a track; the first movement control mechanism is associated with the mobile trolley A to control the movement of the mobile trolley A on the track, and then dock or avoid the hanger. When the mobile trolley A docks the hanger, the barrel can be transferred between the mobile trolley A and the barrel locking area. When the mobile trolley A avoids the hanger, the mobile trolley A avoids the flipping path of the hanger; the barrel carrier is placed on the mobile trolley A and can slide on the mobile trolley A; the second movement control mechanism is used to control the movement of the barrel carrier between the mobile trolley A and the barrel locking area.

[0014] A further technical solution of the present invention is: it also includes a barrel flushing device; the barrel flushing device includes a nozzle shifting and control mechanism and a high-pressure nozzle; the nozzle shifting and control mechanism is associated with the high-pressure nozzle to adjust the spatial position of the high-pressure nozzle; the high-pressure nozzle is fixedly mounted on the nozzle shifting and control mechanism and connected to an external water source, and the high-pressure nozzle is driven to move by the nozzle shifting and control mechanism, and its outflow direction always points to the barrel locking area.

[0015] A further technical solution of the present invention is: the nozzle movement control mechanism includes a side guide rail, a mobile trolley B, an electric push rod A and an electric push rod B. The side guide rail is horizontally arranged and fixedly installed on the base. A universal wheel is provided at the lower end of the mobile trolley B, and a pulley mounting seat is provided on one side of the mobile trolley B. A horizontally arranged pulley block is installed on the pulley mounting seat. The two pulleys included in the pulley block are arranged opposite to each other. A gap is provided between the two pulleys in the pulley block for the side guide rail to pass through. A push rod mounting seat is provided on the other side of the mobile trolley B. The mobile trolley B is placed on the base through the universal wheel support, and is slidably connected to the side guide rail through the gap in the pulley block, and is located between the side guide rail and the barrel locking area. The electric push rod A is fixedly installed on the push rod mounting seat, and extends obliquely toward the upper outer side of the mobile trolley B, and its inclination direction points to the barrel locking area. The electric push rod B is fixedly installed on the base and connected to the mobile trolley B to drive the mobile trolley B to reciprocate along the side guide rail; the high-pressure nozzle is fixedly installed on the electric push rod A and connected to the external water source through a pipeline, and its outflow direction always points to the barrel locking area.

[0016] A further technical solution of the present invention is that a feeding hole is provided on the base, and the feeding hole is arranged between the barrel turning device and the barrel flushing device.

[0017] A further technical solution of the present invention is: there are two brackets, which are arranged at intervals and fixedly mounted on the base;

[0018] The hanger includes a U-shaped frame, a rotating shaft and a barrel outer profile clamping plate; the U-shaped frame includes a bottom plate and connecting columns fixedly connected to both sides of the bottom plate, and the U-shaped frame is rotatably suspended between two brackets through two rotating shafts arranged outside the two connecting columns; the two ends of the barrel outer profile clamping plate are respectively fixedly connected to the two connecting columns of the U-shaped frame;

[0019] The flipping drive mechanism includes a motor and a reducer; the motor and the reducer are fixedly mounted on the base, the motor is connected to the reducer, the reducer is connected to the rotating shaft, and the power of the motor is transmitted to the rotating shaft through the reducer to drive the U-shaped frame to flip around the rotating shaft;

[0020] The barrel locking mechanism includes a hook installed at the upper ends of two connecting columns, a scissor-type hydraulic lift fixedly installed on the bottom plate, and a bearing platform fixedly installed on the upper end of the scissor-type hydraulic lift, on which a plurality of rollers B arranged adjacent to and in parallel are horizontally installed, and all rollers B jointly form a bearing surface at the upper end; the barrel locking area is arranged between the bearing surface and the hook.

[0021] A further technical solution of the present invention is: a plurality of rollers A are horizontally mounted on the upper end of the moving trolley A and are arranged adjacent to each other in parallel; all the rollers A jointly form a sliding surface at the upper end;

[0022] The first movement control mechanism includes a connecting seat and an electric push rod C; the connecting seat is installed at the lower end of the mobile trolley A, the cylinder body of the electric push rod C is fixedly installed on the base, the piston rod of the electric push rod C is connected to the connecting seat, and the piston rod of the electric push rod C is extended and retracted to drive the mobile trolley A to move back and forth along the track, thereby making the mobile trolley A dock or avoid the hanger. When the mobile trolley A docks the hanger, the sliding surface and the bearing surface are flush and close to each other at the edge. When the mobile trolley A avoids the hanger, the mobile trolley A avoids the overturning path of the hanger;

[0023] The barrel carrier includes a bearing plate, a barrel stopper part A and a barrel stopper part B; the barrel stopper part A and the barrel stopper part B are respectively arranged at the opposite sides of the bearing plate, the barrel stopper part A includes a positioning wheel seat A installed at both ends of one side of the bearing plate and a positioning wheel A installed on the positioning wheel seat A, each positioning wheel seat A is installed with two groups of positioning wheels A, and the four groups of positioning wheels A together form a barrel positioning arc A, and the barrel positioning arc A faces away from the barrel locking area; the barrel stopper part B is a baffle fixedly installed on the other side of the bearing plate; the barrel carrier is placed on the sliding surface of the mobile trolley A through the bearing plate, and can slide on the sliding surface;

[0024] The second shift control mechanism includes a slide rail, a slide, a slide anti-deviation assembly, a hydraulic cylinder, a positioning wheel seat B, a positioning wheel B and a barrel suction and release assembly; there are two slide rails, both of which are fixedly mounted on the base and symmetrically arranged on both sides of the mobile trolley A; the slide includes a crossbeam, legs connected to both ends of the crossbeam, and rollers installed at the lower ends of the two legs, and the slide is movably mounted on the two slide rails through the rollers at the lower ends of the two legs; the slide anti-deviation assembly includes a deviation correction wheel frame B and a deviation correction wheel B, there are two deviation correction wheel frames B, both of which are fixedly mounted on the base and are respectively located on the two slides On the outer side of the rail, a plurality of sets of correcting wheels B are installed on the correcting wheel frame B, which are parallel to and arranged in parallel with each other. All the correcting wheels B on each correcting wheel frame B respectively form guide surfaces parallel to the slide rail, and the two guide surfaces are arranged oppositely. The cylinder body of the hydraulic cylinder is fixedly installed on the base, and the piston rod of the hydraulic cylinder extends horizontally and is connected to the middle part of the crossbeam of the slide. The piston rod of the hydraulic cylinder is extended and retracted to drive the slide to move back and forth along the slide rail, so that the slide is close to or away from the locking area of ​​the barrel. The positioning wheel seat B is fixedly installed in the middle part of the crossbeam of the slide. Two rows of vertically arranged positioning wheels B are movably installed on both sides of the positioning wheel seat B. The two rows of positioning wheels B are symmetrically arranged relative to the piston rod of the hydraulic cylinder, and the barrel positioning arc B is formed together. The barrel positioning arc B faces the barrel positioning arc A and is surrounded by the barrel positioning arc A to form a barrel positioning area. The barrel suction and release assembly includes a mounting frame, a pull rod, a nut, an electromagnet and a spring. The mounting frame is fixedly installed in the middle of the crossbeam of the slide, and includes a mounting block A, a mounting block B, a mounting plate A and a mounting plate B. The mounting block A and the mounting block B are arranged at intervals and fixedly installed on the crossbeam of the slide, and the mounting plate A and the mounting plate B are arranged at intervals and fixedly installed in the area between the mounting block A and the mounting block B. Inside, a rod hole A is provided on the mounting plate A, and a rod hole B is provided on the mounting plate B. The rod hole A and the rod hole B are at the same height and face each other; external threads A and external threads B are provided at both ends of the pull rod respectively, and the pull rod passes through the pull rod hole A and the pull rod hole B, and the external threads A and external threads B at both ends extend out from the pull rod hole A and the pull rod hole B respectively; the nut is threadedly connected to the external thread A of the pull rod; the electromagnet is threadedly connected to the external thread B of the pull rod and faces the barrel positioning area; the spring loop is on the pull rod and is located between the mounting plate A and the electromagnet, and it forces the nut to be pressed against the mounting plate B through elastic force.

[0025] A further technical solution of the present invention is: the mobile trolley A is installed with a correcting wheel frame A on both sides of one end close to the hanger, and the correcting wheels A are movably installed on the correcting wheel frame A, and the correcting wheels A on the two correcting wheel frames A are arranged opposite to each other; the mobile trolley A is installed with a correcting wheel frame C on both sides of one end away from the hanger, and the correcting wheels C are movably installed on the correcting wheel frame C, and the correcting wheels C on the two correcting wheel frames C are arranged opposite to each other.

[0026] A further technical solution of the present invention is: horizontally extending anti-tilt bars are respectively provided on the mounting block A and the mounting block B of the mounting frame; and plug holes for the anti-tilt bars to move in and out are respectively provided on both sides in the horizontal direction of the barrel stop part B of the barrel carrier.

[0027] Compared with the prior art, the present invention has the following advantages:

[0028] 1. It can realize the automatic feeding operation of radioactive uranium chemical enriched materials. The feeding process has high stability, reliability and automation, and the feeding effect is clean and thorough. Only one operator is needed to perform the feeding operation, which reduces the labor intensity of the operator and shortens the time for the operator to be exposed to radioactive radiation at close range. There is no need to weld a component with a positioning hole at the bottom of the barrel containing the enriched material, which is conducive to the simplification of the barrel structure and reduces the manufacturing cost of the barrel.

[0029] 2. The barrel containing uranium chemical enrichment material usually weighs more than 1 ton. By arranging a barrel support frame between the barrel and the mobile trolley A (that is, the barrel is placed on the mobile trolley A through the barrel support frame), the weight of the barrel can be well distributed to multiple rollers A of the mobile trolley A, avoiding excessive concentration of the weight of the barrel on a few rollers A, which would cause the rollers A to bend.

[0030] 3. When the operator controls the barrel to be lowered onto the barrel carrier by the crane, the two correcting wheels C on the correcting wheel frames C and the four sets of positioning wheels A on the barrel carrier can roll in contact with the outer wall of the barrel, thereby preventing the barrel from shaking and providing guidance for the lowering of the barrel. In addition, the anti-tilt rod on the mounting frame extends into the socket of the barrel carrier to prevent the barrel carrier from overturning due to shaking.

[0031] 4. Four sets of positioning wheels A together form the barrel positioning arc A, and two sets of positioning wheels B together form the barrel positioning arc B. The barrel positioning arc A and the barrel positioning arc B together form the barrel positioning area. When the piston rod of the hydraulic cylinder extends to push the barrel to move, the barrel positioning arc A and the barrel positioning arc B respectively fit the outer wall of the barrel from both sides of the barrel, thereby accurately limiting the position of the barrel within the barrel positioning area, ensuring the accuracy of the barrel movement path.

[0032] 5. The slide is arranged between the hydraulic cylinder and the barrel carrier. The hydraulic cylinder pushes the barrel on the barrel carrier to move through the slide, the positioning wheel seat B and the positioning wheel B in turn. On the one hand, the slide is connected to the end of the piston rod of the hydraulic cylinder, which effectively avoids the problem that the piston rod of the hydraulic cylinder sags under its own weight and causes the piston rod of the hydraulic cylinder to wear at the lower end. On the other hand, since the initial position of the barrel on the barrel carrier has a certain randomness, the center of the barrel cannot be guaranteed to coincide with the center line of the piston rod of the hydraulic cylinder. When the barrel is initially pushed, the barrel will move from the position offset from the center line to the position coincident with the center line. During this process, the positioning wheel B on one side of the positioning wheel seat B is subjected to greater force than the positioning wheel B on the other side, that is, the positioning wheels B on both sides of the positioning wheel seat B are subjected to uneven force. The slide arranged between the hydraulic cylinder and the barrel carrier can effectively bear this unbalanced force and prevent this unbalanced force from being transmitted to the piston rod of the hydraulic cylinder, thereby ensuring that the piston rod of the hydraulic cylinder extends and retracts smoothly and avoids the problem of unilateral jamming.

[0033] 6. On the one hand, the slide is movably mounted on two slide rails through the roller at its lower end, and on the other hand, it is restricted between the two guide surfaces of the slide anti-deviation assembly. Since the initial position of the barrel on the barrel carrier has a certain randomness, the center of the barrel cannot be guaranteed to coincide with the center line of the piston rod of the hydraulic cylinder. When the barrel is initially pushed, the barrel will move from the position offset from the center line to the position coincident with the center line. During this process, the positioning wheel B on one side of the positioning wheel seat B is subjected to greater force than the positioning wheel B on the other side, that is, the force on both sides of the slide is unbalanced, resulting in a tendency for the slide to deviate when moving, and then causing the roller to get stuck in the slide rail. The two guide surfaces of the slide anti-deviation assembly have a good effect of limiting the movement path of the slide, correcting the deviation trend of the slide in real time, and ensuring that the slide moves smoothly along the slide rail.

[0034] 7. The barrel outer profile clamp on the hanger can accurately fit the outer wall of the barrel, providing necessary restrictions for the placement of the barrel on the barrel locking mechanism. When the outer wall of the barrel fits the barrel outer profile clamp, it means that the barrel is in the preset position, thereby ensuring that the subsequent barrel clamping steps can proceed smoothly.

[0035] 8. Since the outlet of the high-pressure nozzle is located on one side of the mobile trolley B, when the high-pressure nozzle sprays water, it will apply a thrust opposite to the outlet direction of the high-pressure water to the mobile trolley B. This thrust is perpendicular to the moving direction of the mobile trolley B, causing the mobile trolley B to deviate when moving, which in turn causes unilateral wear of the electric push rod B. In addition, a small part of the material poured out of the barrel will fall on the mobile trolley B, causing the mobile trolley B to vibrate, which in turn causes damage to the electric push rod B. In order to solve the above two problems, a horizontally arranged pulley block is installed on the side of the mobile trolley B. The mobile trolley B is slidably connected to the side guide rail through the gap in the pulley block, that is, the moving path of the mobile trolley B is limited by the side guide rail, which effectively suppresses the tendency of the mobile trolley B to deviate when moving, and alleviates the vibration amplitude of the mobile trolley B when it is hit by the material, thereby playing a good protective role for the electric push rod B.

[0036] 9. After the barrel is turned over, the residual material on the inner wall of the barrel can be flushed through the barrel flushing device. The nozzle movement control mechanism can control the spatial position of the high-pressure nozzle so that the sprayed water column can be aimed at the area with residual material on the inner wall of the barrel, thereby ensuring a clean and thorough feeding effect.

[0037] The present invention is further described below in conjunction with the figures and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the structure of the present invention at a viewing angle;

[0039] Figure 2 It is a schematic diagram of the structure of the present invention from another viewing angle;

[0040] Figure 3 It is a structural schematic diagram of the feeding and unloading device;

[0041] Figure 4 It is a schematic diagram of the structure of the slide in the feeding and unloading device from a certain perspective;

[0042] Figure 5 It is a schematic diagram of the structure of the slide in the feeding and unloading device from another perspective;

[0043] Figure 6 It is a structural schematic diagram of the mobile trolley A and the barrel carrier frame in the feeding and unloading device;

[0044] Figure 7 It is a schematic diagram of the installation position of the first shift control mechanism in the feeding and unloading device;

[0045] Figure 8 It is a structural schematic diagram of the barrel turning device;

[0046] Fig. 9 It is a structural schematic diagram of the barrel flushing device;

[0047] Fig.10 It is a schematic diagram of the structure of the mobile trolley B in the barrel flushing device;

[0048] Fig.11 This is a schematic diagram of the state when the feeding operation S01 step is completed;

[0049] Fig.12 This is a schematic diagram of the state during the step S03 of the feeding operation;

[0050] Fig.13 This is a schematic diagram of the state when the feeding operation S04 step is completed;

[0051] Fig.14 This is a schematic diagram of the state during the feeding operation step S06.

[0052] Legend: base 1; track 11; feeding hole 12; barrel turning device 2; bracket 21; U-shaped frame 221; bottom plate 2211; connecting column 2212; rotating shaft 222; barrel outer profile clamp 223; hook 241; scissor-type hydraulic lift 242; bearing platform 243; roller B244; bearing surface 245; barrel locking area 25; feeding and unloading device 3; mobile trolley A31; roller A311; sliding surface 312; connecting seat 321; electric push rod C322; barrel bearing frame 33; bearing plate 331; positioning wheel seat A3221; positioning wheel A3222; barrel stopper B333; socket 3331; slide rail 341; slide frame 342; crossbeam 3421; leg 3422; roller 3423; deviation correction wheel frame B3431 ; Correction wheel B3432; Guide surface 3433; Hydraulic cylinder 344; Positioning wheel seat B345; Positioning wheel B346; Mounting frame 3471; Mounting block A34711; Mounting block B34712; Mounting plate A34713; Mounting plate B34714; Anti-tilt bar 34715; Pull rod 3472; Nut 3473; Electromagnet 3474; Spring 3475; Bucket positioning arc A35; Bucket positioning arc B36; Bucket positioning area 37; Bucket flushing device 4; Side guide rail 411; Moving trolley B412; Universal wheel 4121; Pulley mounting seat 4122; Pulley 4123; Gap 4124; Push rod mounting seat 4125; Material blocking plate 4126; Electric push rod A413; Electric push rod B414; High-pressure nozzle 42. DETAILED DESCRIPTION

[0053] Embodiment 1:

[0054] like Figure 1-10 As shown, the automatic feeding system for uranium chemical enrichment materials includes a base 1, a barrel turning device 2, a feeding and unloading device 3 and a barrel flushing device 4.

[0055] A track 11 is fixedly arranged on the base 1 .

[0056] The barrel turning device 2 comprises a bracket 21, a hanger, a turning drive mechanism and a barrel locking mechanism.

[0057] There are two brackets 21 , and the two brackets 21 are arranged at an interval and fixedly mounted on the base 1 .

[0058] The hanger includes a U-shaped frame 221, a rotating shaft 222 and a barrel outer profile clamping plate 223. The U-shaped frame 221 includes a bottom plate 2211 and connecting columns 2212 fixedly connected to both sides of the bottom plate 2211. The U-shaped frame 221 is rotatably suspended between the two brackets 21 through two rotating shafts 222 arranged outside the two connecting columns 2212. The two ends of the barrel outer profile clamping plate 223 are respectively fixedly connected to the two connecting columns 2212 of the U-shaped frame 221.

[0059] The flipping drive mechanism is associated with the hanger to drive the hanger to flip along the vertical plane. The flipping drive mechanism includes a motor 231 and a reducer 232. The motor 231 and the reducer 232 are both fixedly mounted on the base 1, the motor 231 is connected to the reducer 232, the reducer 232 is connected to the rotating shaft 222, and the power of the motor 231 is transmitted to the rotating shaft 222 through the reducer 232 to drive the U-shaped frame 221 to flip around the rotating shaft 222.

[0060] The barrel locking mechanism includes a hook 241 installed on the upper ends of two connecting columns 2212, a scissor-type hydraulic lift 242 fixedly installed on the bottom plate 2211, and a bearing platform 243 fixedly installed on the upper end of the scissor-type hydraulic lift 242. A plurality of rollers B244 arranged adjacent to each other and in parallel are horizontally installed on the bearing platform 242, and all rollers B244 together form a bearing surface 245 at the upper end. The area between the bearing surface 245 and the hook 241 is the barrel locking area 25.

[0061] The feeding and unloading device 3 comprises a movable trolley A31, a first movement control mechanism, a barrel support frame 33 and a second movement control mechanism.

[0062] The moving trolley A31 is movably mounted on the track 11 via rollers at its lower end. A plurality of rollers A311 arranged adjacent to each other and in parallel are horizontally mounted at the upper end of the moving trolley A31, and all the rollers A311 form a sliding surface 312 at the upper end.

[0063] The first shift control mechanism is used to control the mobile trolley A31 to dock or avoid the hanger. The first shift control mechanism includes a connecting seat 321 and an electric push rod C322. The connecting seat 321 is installed at the lower end of the mobile trolley A31, and the cylinder body of the electric push rod C322 is fixedly installed on the base 1. The piston rod of the electric push rod C322 is connected to the connecting seat 321. The piston rod of the electric push rod C322 is retracted to drive the mobile trolley A31 to move back and forth along the track 11, thereby making the mobile trolley A31 dock or avoid the hanger. When the mobile trolley A31 docks the hanger, the sliding surface 312 and the bearing surface 245 are flush and adjacent to each other at the edge. At this time, the barrel can be transferred between the mobile trolley A31 and the barrel locking area 25. When the mobile trolley A31 avoids the hanger, the mobile trolley A31 avoids the flipping path of the hanger. At this time, the mobile trolley A31 will not interfere with the flipping of the hanger.

[0064] The barrel carrier 33 includes a carrier plate 331, a barrel stopper A and a barrel stopper B333. The barrel stopper A and the barrel stopper B333 are respectively arranged at opposite sides of the carrier plate 331. The barrel stopper A includes a positioning wheel seat A3221 installed at both ends of one side of the carrier plate 331 and a positioning wheel A3222 installed on the positioning wheel seat A3221. Two groups of positioning wheels A3222 are installed on each positioning wheel seat A3221. The four groups of positioning wheels A3222 together form a barrel positioning arc A35, and the barrel positioning arc A35 faces away from the barrel locking area 25. The barrel stopper B333 is a baffle fixedly installed on the other side of the carrier plate 331. The barrel carrier 33 is placed on the sliding surface 312 of the mobile trolley A31 through the carrier plate 331 and can slide on the sliding surface 312.

[0065] The second shift control mechanism is used to control the barrel carrier 33 to move between the mobile trolley A31 and the barrel locking area 25. The second shift control mechanism includes a slide rail 341, a carriage 342, a carriage anti-bias assembly, a hydraulic cylinder 344, a positioning wheel seat B345, a positioning wheel B346 and a barrel suction and release assembly. There are two slide rails 341, and both slide rails 341 are fixedly mounted on the base 1 and symmetrically arranged on both sides of the mobile trolley A31. The carriage 342 includes a crossbeam 3421, legs 3422 connected to both ends of the crossbeam 3421, and rollers 3423 installed at the lower ends of the two legs 3422. The carriage 342 is movably mounted on the two slide rails 341 through the rollers 3423 at the lower ends of the two legs 3422. The slide anti-deviation assembly includes a deviation correction wheel frame B3431 and a deviation correction wheel B3432. There are two deviation correction wheel frames B3431. Both deviation correction wheel frames B3431 are fixedly mounted on the base 1 and are respectively located outside the two slide rails 341. Multiple sets of deviation correction wheels B3432 are installed on the deviation correction wheel frames B3431 and arranged in parallel. All the deviation correction wheels B3432 on each deviation correction wheel frame B3431 form guide surfaces 3433 parallel to the slide rail 341, and the two guide surfaces 3433 are arranged opposite to each other. The cylinder body of the hydraulic cylinder 344 is fixedly mounted on the base 1. The piston rod of the hydraulic cylinder 344 extends horizontally and is connected to the middle of the crossbeam 3421 of the slide 342. The piston rod of the hydraulic cylinder 344 is extended to drive the slide 342 to reciprocate along the slide rail 341, so that the slide 342 is close to or away from the barrel locking area 25. The positioning wheel seat B345 is fixedly mounted in the middle of the crossbeam of the carriage 342. Two rows of vertically arranged positioning wheels B346 are movably mounted on both sides of the positioning wheel seat B345, and are symmetrically arranged relative to the piston rod of the hydraulic cylinder 344. The two rows of positioning wheels B346 together form a barrel positioning arc B36, which faces the barrel positioning arc A35 and forms a barrel positioning area 37 together with the barrel positioning arc A35. The barrel suction and release assembly includes a mounting frame 3471, a pull rod 3472, a nut 3473, an electromagnet 3474 and a spring 3475. The mounting frame 3471 is fixedly mounted on the middle of the crossbeam 3421 of the carriage 342, and includes a mounting block A34711, a mounting block B34712, a mounting plate A34713 and a mounting plate B34714. The mounting block A34711 and the mounting block B34712 are fixedly mounted on the crossbeam 3421 of the carriage 342 at intervals, and the mounting plates A34711 and the mounting plates B34712 are fixedly mounted in the area between the mounting block A34711 and the mounting block B34712 at intervals. The mounting plate A34713 is provided with a rod-through hole A, and the mounting plate B34714 is provided with a rod-through hole B. The rod-through hole A and the rod-through hole B are at the same height and face each other. The two ends of the pull rod 3472 are respectively provided with external threads A and external threads B. The pull rod 3472 passes through the pull rod hole A and the pull rod hole B, and the external threads A and external threads B at the two ends extend out of the pull rod hole A and the pull rod hole B respectively.Nut 3473 is threadedly connected to the external thread A of tie rod 3472. Electromagnet 3474 is threadedly connected to the external thread B of tie rod 3472 and faces barrel positioning area 37. Spring 3475 is looped on tie rod 3472 and is located between mounting plate A 34713 and electromagnet 3474, which forces nut 3473 to be pressed against mounting plate B 34712 by elastic force.

[0066] The barrel flushing device 4 includes a nozzle movement control mechanism and a high-pressure nozzle 42 .

[0067] The nozzle movement control mechanism includes a side guide rail 411, a mobile trolley B412, an electric push rod A413 and an electric push rod B414. The side guide rail 411 is arranged horizontally and fixedly mounted on the base 1. A universal wheel 4121 is provided at the lower end of the mobile trolley B412, a pulley mounting seat 4122 is provided on one side of the mobile trolley B412, a horizontally arranged pulley block is mounted on the pulley mounting seat 4122, two pulleys 4123 included in the pulley block are arranged opposite to each other, and a gap 4124 is provided between the two pulleys 4123 in the pulley block for the side guide rail 411 to pass through, and a push rod mounting seat 4125 is provided on the other side of the mobile trolley B412. The mobile trolley B412 is supported and placed on the base 1 by the universal wheel 4121, and is slidably connected to the side guide rail 411 through the gap 4124 in the pulley block, and is located between the side guide rail 411 and the barrel locking area 25. The electric push rod A413 is fixedly mounted on the push rod mounting seat 4125 and extends obliquely upwardly and outwardly of the moving trolley B412, and its oblique direction points to the barrel locking area 25. The electric push rod B414 is fixedly mounted on the base 1 and connected to the moving trolley B412 to drive the moving trolley B412 to reciprocate along the side guide rail 411.

[0068] The high-pressure nozzle 42 is fixedly mounted on the electric push rod A413 and is connected to an external water source through a hose (not shown in the figure), and its outflow direction always points to the barrel locking area 25.

[0069] Preferably, a feeding hole 12 is provided on the base 1, and the feeding hole 12 is provided between the barrel turning device 2 and the barrel flushing device 4. The turning of the hanger of the barrel turning device drives the barrel to turn over. When the barrel turns over, the uranium chemical enriched material poured out from the barrel mouth enters the next process through the feeding hole 12.

[0070] Preferably, the mobile trolley B412 is provided with a material blocking plate 4126 between the pulley mounting seat 4122 and the push rod mounting seat 4125. The material blocking plate 4126 can prevent the dumped material from splashing on the plane of the mobile trolley B412. When the dumped material hits the material blocking plate 4126, it can slide down along the material blocking plate 4126 and fall into the feeding hole 12 of the base 1 to enter the next process.

[0071] Preferably, the moving trolley A31 is provided with a correction wheel frame A313 on both sides of one end close to the hanger, and a correction wheel A314 is movably installed on the correction wheel frame A313, and the correction wheels A314 on the two correction wheel frames A313 are arranged oppositely. The moving trolley A31 is provided with a correction wheel frame C315 on both sides of one end away from the hanger, and a correction wheel C316 is movably installed on the correction wheel frame C315, and the correction wheels C316 on the two correction wheel frames C315 are arranged oppositely.

[0072] Preferably, the mounting block A34711 and the mounting block B34712 of the mounting frame 3471 are respectively provided with horizontally extending anti-tilt bars 34715. The horizontal sides of the barrel stopper portion B333 of the barrel carrier 33 are respectively provided with plug holes 3331 for the anti-tilt bars 34715 to move in and out.

[0073] like Figure 11-14 As shown, the automatic feeding method of uranium chemical enrichment material is applied to the above-mentioned automatic feeding system of uranium chemical enrichment material. Before performing the feeding operation, the automatic feeding system of uranium chemical enrichment material is in an initial state. In the initial state:

[0074] a. The piston rod of the electric push rod C322 is in a retracted state, so that the mobile trolley A31 is in a position to avoid the hanger;

[0075] b. The barrel carrier is placed on the sliding surface 312 of the mobile trolley A31, and the anti-tilt rod on the mounting frame extends into the insertion hole 3331 of the barrel carrier 33;

[0076] c. The piston rod of the hydraulic cylinder 344 is in a retracted state, so that the slide 342 is in a position away from the barrel locking area 25;

[0077] d. The bearing surface 245 of the barrel locking mechanism is in a horizontal state and is at the same height as the sliding surface 312 of the moving trolley A31;

[0078] e. The electric push rod A413 is in a retracted state, so that the high-pressure nozzle 42 is located away from the barrel locking area 25.

[0079] The feeding operation steps are as follows:

[0080] S01, place the barrel on the barrel carrier:

[0081] The operator controls the crane to transport the barrel containing uranium chemical enriched material and place it on the supporting plate 331 of the barrel support frame 33. During the lowering process of the barrel, on the one hand, the correcting wheels C316 on the two correcting wheel frames C315 and the four sets of positioning wheels A3222 on the barrel support frame 33 work together to prevent the barrel from shaking and provide guidance for the lowering of the barrel. On the other hand, the anti-tilt rod 34715 on the mounting frame 3471 extends into the socket 3331 on the barrel support frame 33 to prevent the barrel from knocking over the barrel support frame 33 due to shaking.

[0082] S02, docking the mobile trolley A with the hanger:

[0083] The piston rod of the electric push rod C322 extends to drive the mobile trolley A31 to move along the track 11 until the sliding surface 312 of the mobile trolley A31 and the bearing surface 245 of the barrel locking mechanism are flush and adjacent to each other at the edge. At this time, the mobile trolley A31 is in the position of docking the hanger.

[0084] S03, push the barrel carrier and barrel onto the barrel locking mechanism:

[0085] The piston rod of the hydraulic cylinder 344 extends out, pushing the slide 342 to move along the slide rail 341, on the one hand, limiting the material barrel in the material barrel positioning area 37 formed by the material barrel positioning arc bend B36 and the material barrel positioning arc bend A35, and on the other hand, pushing the material barrel together with the material barrel carrier 33 in the direction of the material barrel locking area 25; after the material barrel together with the material barrel carrier 33 is pushed out from the sliding surface 312 of the moving trolley A31, it enters the bearing surface 245 of the material barrel locking mechanism; as the piston rod of the hydraulic cylinder 344 extends out, the outer wall of the material barrel is finally stuck in the outer contour clamping plate 223 of the material barrel, at this time, the material barrel is positioned by the outer contour clamping plate 223 of the material barrel, and the upper edge of the material barrel is located directly below the hook 241 of the material barrel locking mechanism; then, the piston rod of the hydraulic cylinder 344 retracts, pulling the slide 342 to move back to the initial state;

[0086] In this step, when the slide 342 moves along the slide rail 341, the two guide surfaces 3433 formed by the slide anti-deviation assembly can correct the position deviation of the slide 342 in real time, accurately guide the moving path of the slide 342, and ensure that the slide 342 moves smoothly along the slide rail 341;

[0087] In this step, when the barrel together with the barrel carrier 33 is about to be discharged from the sliding surface 312 of the moving trolley A31, the position of the barrel is further corrected by the correcting wheels A314 on the two correcting wheel frames A313 to ensure the position accuracy of the barrel during movement.

[0088] S04, make the mobile trolley A avoid the hanger and lock the barrel and the barrel carrier:

[0089] a. The piston rod of the electric push rod C322 retracts, driving the moving trolley A31 to move along the track 11 to a position to avoid the hanger; at this time, the moving trolley A31 avoids the overturning path of the hanger;

[0090] b. The scissor-type hydraulic lift 242 is started to raise the height of the bearing surface 245, thereby driving the barrel bearing frame 33 and the barrel to rise until the upper edge of the barrel is stuck in the hook 241, thereby pressing and locking the barrel together with the barrel bearing frame 33 in the barrel locking area 25;

[0091] In this step, steps a and b are in no particular order.

[0092] S05, turn over the barrel and barrel support frame to achieve material feeding:

[0093] The motor 231 is started, and the power of the motor 231 is transmitted to the rotating shaft 222 through the reducer 232, driving the hanger, the barrel locking mechanism, the barrel and the barrel support frame 33 to turn over synchronously until the barrel is turned over 135 degrees and stops. As the barrel turns over, the uranium chemical enriched material in the barrel is poured out from the barrel mouth and enters the next process through the feeding hole 12 on the base 1.

[0094] S06, flush the residual material on the inner wall of the barrel:

[0095] First, start the external water supply to make the high-pressure nozzle 42 spray water; then the operator controls the electric push rod A413 and the electric push rod B414 according to the water flow flushing position to adjust the spatial position of the high-pressure nozzle 42 so that the high-pressure nozzle 42 is aimed at the area where the residual concentrated material exists on the inner wall of the barrel for flushing. Under the action of the water flow, the residual concentrated material flows out from the barrel mouth and enters the next process through the feeding hole 12 on the base 1; after the flushing is completed, the piston rod of the electric push rod A413 retracts, so that the high-pressure nozzle 42 is away from the barrel locking area 25.

[0096] S07, turn over the barrel and the barrel support frame to return to the horizontal state:

[0097] The motor 231 is started, and the power of the motor 231 is transmitted to the rotating shaft 222 through the reducer 232, driving the hanger, the barrel locking mechanism, the barrel and the barrel support frame 33 to flip synchronously until the barrel is flipped back to a horizontal state and stops; then the scissor-type hydraulic lift 242 is started, so that the height of the bearing surface 245 drops to a height flush with the sliding surface 312. As the height of the bearing surface 245 drops, the upper edge of the barrel disengages from the hook 241, thereby releasing the locking state of the barrel.

[0098] S08, docking the mobile trolley A with the hanger:

[0099] The piston rod of the electric push rod C322 extends to drive the mobile trolley A31 to move along the track 11 until the sliding surface 312 of the mobile trolley A31 and the bearing surface 245 of the barrel locking mechanism are flush and adjacent to each other at the edge. At this time, the mobile trolley A31 is in the position of docking the hanger.

[0100] S09, drag the barrel carrier and barrel back to mobile cart A:

[0101] a. The piston rod of the hydraulic cylinder 344 extends to push the slide 342 to move along the slide rail 341 until the electromagnet 3474 and the two rows of positioning wheels B346 are in contact with the outer wall of the barrel and stop moving;

[0102] b. The electromagnet 3474 is energized to firmly adsorb the outer wall of the barrel; then the piston rod of the hydraulic cylinder 344 retracts, driving the barrel and the barrel carrier 33 to retreat from the bearing surface 245 of the barrel locking mechanism to the sliding surface 312 of the mobile trolley A31;

[0103] c. The electromagnet 3474 is powered off, releasing the adsorption state of the barrel, and then the piston rod of the hydraulic cylinder 344 is further retracted to the initial state;

[0104] d. The operator controls the crane to transport the empty barrel away, thus completing the entire feeding operation;

[0105] In the sub-step b of this step, due to the blocking of the barrel blocking portion B333 of the barrel support frame 33, the barrel will not fall off the barrel support frame 33 when retreating, but will retreat together with the barrel support frame 33.

Claims

1. Uranium chemical enrichment material automatic feeding system, characterized by: It includes a base, a barrel turning device, a feeding and unloading device and a barrel flushing device; A track is fixed on the base; The barrel turning device includes a bracket, a hanger, a turning drive mechanism and a barrel locking mechanism; the bracket is fixedly mounted on the base; the hanger is movably mounted on the bracket; the turning drive mechanism is associated with the hanger to drive the hanger to turn along a vertical plane; the barrel locking mechanism is mounted on the hanger, and a barrel locking area is provided on the hanger; The feeding and unloading device includes a mobile trolley A, a first shifting control mechanism, a barrel carrier and a second shifting control mechanism; the mobile trolley A is movably installed on the track; the first shifting control mechanism is associated with the mobile trolley A to control the movement of the mobile trolley A on the track, and then dock or avoid the hanger. When the mobile trolley A docks the hanger, the barrel can be transferred between the mobile trolley A and the barrel locking area. When the mobile trolley A avoids the hanger, the mobile trolley A avoids the overturning path of the hanger; the barrel carrier is placed on the mobile trolley A and can slide on the mobile trolley A; The second movement control mechanism is used to control the barrel carrier to move between the moving trolley A and the barrel locking area; a plurality of rollers A arranged adjacent to and in parallel are horizontally mounted on the upper end of the moving trolley A; all the rollers A together form a sliding surface at the upper end; The first movement control mechanism includes a connecting seat and an electric push rod C; the connecting seat is installed at the lower end of the mobile trolley A, the cylinder body of the electric push rod C is fixedly installed on the base, the piston rod of the electric push rod C is connected to the connecting seat, and the piston rod of the electric push rod C is extended and retracted to drive the mobile trolley A to move back and forth along the track, thereby making the mobile trolley A dock or avoid the hanger. When the mobile trolley A docks the hanger, the sliding surface and the bearing surface are flush and close to each other at the edge. When the mobile trolley A avoids the hanger, the mobile trolley A avoids the overturning path of the hanger; The barrel carrier includes a bearing plate, a barrel stopper part A and a barrel stopper part B; the barrel stopper part A and the barrel stopper part B are respectively arranged at the opposite sides of the bearing plate, the barrel stopper part A includes a positioning wheel seat A installed at both ends of one side of the bearing plate and a positioning wheel A installed on the positioning wheel seat A, each positioning wheel seat A is installed with two groups of positioning wheels A, and the four groups of positioning wheels A together form a barrel positioning arc A, and the barrel positioning arc A faces away from the barrel locking area; the barrel stopper part B is a baffle fixedly installed on the other side of the bearing plate; the barrel carrier is placed on the sliding surface of the mobile trolley A through the bearing plate, and can slide on the sliding surface; The second shift control mechanism includes a slide rail, a slide, a slide anti-deviation assembly, a hydraulic cylinder, a positioning wheel seat B, a positioning wheel B and a barrel suction and release assembly; there are two slide rails, both of which are fixedly mounted on the base and symmetrically arranged on both sides of the mobile trolley A; the slide includes a crossbeam, legs connected to both ends of the crossbeam, and rollers installed at the lower ends of the two legs, and the slide is movably mounted on the two slide rails through the rollers at the lower ends of the two legs; the slide anti-deviation assembly includes a deviation correction wheel frame B and a deviation correction wheel B, there are two deviation correction wheel frames B, both of which are fixedly mounted on the base and are respectively located on the two slides On the outer side of the rail, a plurality of sets of correcting wheels B are installed on the correcting wheel frame B, which are parallel to and arranged in parallel with each other. All the correcting wheels B on each correcting wheel frame B respectively form guide surfaces parallel to the slide rail, and the two guide surfaces are arranged oppositely. The cylinder body of the hydraulic cylinder is fixedly installed on the base, and the piston rod of the hydraulic cylinder extends horizontally and is connected to the middle part of the crossbeam of the slide. The piston rod of the hydraulic cylinder is extended and retracted to drive the slide to move back and forth along the slide rail, so that the slide is close to or away from the locking area of ​​the barrel. The positioning wheel seat B is fixedly installed in the middle part of the crossbeam of the slide. Two rows of vertically arranged positioning wheels B are movably installed on both sides of the positioning wheel seat B. The two rows of positioning wheels B are symmetrically arranged relative to the piston rod of the hydraulic cylinder, and the barrel positioning arc B is formed together. The barrel positioning arc B faces the barrel positioning arc A and is surrounded by the barrel positioning arc A to form a barrel positioning area. The barrel suction and release assembly includes a mounting frame, a pull rod, a nut, an electromagnet and a spring. The mounting frame is fixedly installed in the middle of the crossbeam of the slide, and includes a mounting block A, a mounting block B, a mounting plate A and a mounting plate B. The mounting block A and the mounting block B are arranged at intervals and fixedly installed on the crossbeam of the slide, and the mounting plate A and the mounting plate B are arranged at intervals and fixedly installed in the area between the mounting block A and the mounting block B. Inside, a rod hole A is provided on the mounting plate A, and a rod hole B is provided on the mounting plate B. The rod hole A and the rod hole B are at the same height and face each other; external threads A and external threads B are provided at both ends of the pull rod, respectively. The pull rod passes through the pull rod hole A and the pull rod hole B, and the external threads A and external threads B at both ends extend out of the pull rod hole A and the pull rod hole B, respectively; the nut is threadedly connected to the external thread A of the pull rod; the electromagnet is threadedly connected to the external thread B of the pull rod and faces the barrel positioning area; the spring loop is on the pull rod and is located between the mounting plate A and the electromagnet, and it forces the nut to be pressed against the mounting plate B through elastic force; The barrel flushing device comprises a nozzle moving control mechanism and a high-pressure nozzle; the nozzle moving control mechanism is associated with the high-pressure nozzle to adjust the spatial position of the high-pressure nozzle.

2. The automatic feeding system for uranium chemical enrichment materials according to claim 1, characterized in that: A feeding hole is arranged on the base, and the feeding hole is arranged between the barrel turning device and the barrel flushing device.

3. The automatic feeding system for uranium chemical enrichment materials according to claim 2, characterized in that: There are two brackets, which are arranged at intervals and fixedly mounted on the base; The hanger includes a U-shaped frame, a rotating shaft and a barrel outer profile clamping plate; the U-shaped frame includes a bottom plate and connecting columns fixedly connected to both sides of the bottom plate, and the U-shaped frame is rotatably suspended between two brackets through two rotating shafts arranged outside the two connecting columns; the two ends of the barrel outer profile clamping plate are respectively fixedly connected to the two connecting columns of the U-shaped frame; The flipping drive mechanism includes a motor and a reducer; the motor and the reducer are fixedly mounted on the base, the motor is connected to the reducer, the reducer is connected to the rotating shaft, and the power of the motor is transmitted to the rotating shaft through the reducer to drive the U-shaped frame to flip around the rotating shaft; The barrel locking mechanism includes a hook installed at the upper ends of two connecting columns, a scissor-type hydraulic lift fixedly installed on the bottom plate, and a bearing platform fixedly installed on the upper end of the scissor-type hydraulic lift, on which a plurality of rollers B arranged adjacent to and in parallel are horizontally installed, and all rollers B jointly form a bearing surface at the upper end; the barrel locking area is arranged between the bearing surface and the hook.

4. The automatic feeding system for uranium chemical enrichment materials as claimed in claim 3 is characterized by: The mobile trolley A is installed with a correcting wheel frame A on both sides of one end close to the hanger, and the correcting wheels A are movably installed on the correcting wheel frame A, and the correcting wheels A on the two correcting wheel frames A are arranged opposite to each other; the mobile trolley A is installed with a correcting wheel frame C on both sides of one end away from the hanger, and the correcting wheels C are movably installed on the correcting wheel frame C, and the correcting wheels C on the two correcting wheel frames C are arranged opposite to each other.

5. The automatic feeding system for uranium chemical enrichment materials as claimed in claim 4, characterized in that: The mounting blocks A and B of the mounting frame are respectively provided with anti-tilt bars extending horizontally; and the barrel retaining portion B of the barrel support frame is respectively provided with insertion holes for the anti-tilt bars to move in and out on both sides in the horizontal direction.

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