Sampling device and fully automatic salt block sampling system

Abstract

The present invention relates to a sampling device and a fully automatic salt block sampling system. The sampling device comprises: a drilling mechanism, which comprises: a drill, connected with a hollow drill bit; a first driving component for driving the drill to rise and fall; a sample placement mechanism, which comprises: a sampling cup; a mechanical arm, which clamps or releases the sampling cup with the sampling port facing upward, and the mechanical arm can move until the sampling cup is directly below the hollow drill bit. When the sampling cup is directly below the hollow drill bit, the hollow drill bit can be lowered with the drill to enter the sampling cup; a second driving component, which drives the mechanical arm to move; wherein a reverse drilling drill bit is provided in the sampling cup, and when the hollow drill bit enters the sampling cup and descends and rotates, the reverse drilling drill bit is used to drill into the salt block in the hollow drill bit. The sampling device personnel of the present application only need to place the sampling cup before sampling and remove the sampling cup after sampling, and the salt block in the hollow drill bit can be automatically taken out, the work intensity of the personnel is low, and the personnel are less exposed to the radiation environment during the sampling process.

Description

Technical Field

[0001] The invention relates to the technical field of nuclear chemical engineering, and in particular to a sampling device and a full-automatic salt block sampling system. Background Art

[0002] In the field of nuclear chemical industry, the solid waste treatment system (ZST) nuclear waste plant (QX) wet waste treatment system equipment contains a salt block sampling device, which is an important component in the wet waste treatment equipment for sampling, collecting and transporting the dried salt blocks in the salt barrel. The staff detects whether the dosage rate of the sampled salt blocks exceeds the standard to confirm whether the wet waste treatment equipment is operating normally.

[0003] The current method of sampling salt blocks is to use equipment to control the hollow drill bit to drill the sampled salt block out of the salt barrel, then disassemble the drill bit and place it on the sampling operation table, and finally manually take out the sampled salt block and put it into the sampling cup. During the manual operation, since the sampled salt block is difficult to take out from the hollow drill bit, the operator needs to spend a long time to take out the salt block, and the site is a radiation environment, and the radiation has a great impact on personnel. Therefore, the on-site staff hopes to use automatic control to complete the work of taking the salt block out of the drill bit and putting it into the sampling cup to reduce the work intensity and radiation dose. Summary of the invention

[0004] Based on the above description, the present invention provides a sampling device and a fully automatic salt block sampling system to realize the automatic control of the work of taking out the salt block from the drill bit.

[0005] The technical solution of the present invention to solve the above technical problems is as follows:

[0006] In the first aspect, the present application provides a sampling device, and the technical solution adopted is as follows:

[0007] A sampling device, comprising:

[0008] A drilling mechanism, comprising:

[0009] A drilling machine, the axis of the output shaft of which is vertical, and the drilling machine is connected to a hollow drill bit;

[0010] A first driving assembly for driving the drilling rig to rise and fall;

[0011] A lofting mechanism, comprising:

[0012] A sampling cup provided with a sampling port;

[0013] A mechanical arm, which is used to clamp or release the sampling cup in a posture where the sampling port is facing upward, the mechanical arm can move toward or away from the drilling mechanism in the horizontal direction, and the mechanical arm can move until the sampling cup clamped by it is located directly below the hollow drill bit. When the sampling cup is located directly below the hollow drill bit, the hollow drill bit can be lowered with the drilling rig to enter the sampling cup;

[0014] A second driving assembly, used for driving the mechanical arm to move;

[0015] Wherein, a backdrill drill bit is provided in the sampling cup, which is suitable for drilling into the salt block in the hollow drill bit through the backdrill drill bit when the hollow drill bit descends into the sampling cup and continues to descend and rotate.

[0016] Preferably, the sampling cup is cylindrical, with one end of the sampling cup closed and the other end open to form a sampling port, the back-drilling drill bit is coaxial with the sampling cup and fixed at the closed end of the sampling cup, the sampling cup is suitable for being clamped by the robotic arm with the axis vertical and the sampling port facing upward, and the sampling cup can be moved with the robotic arm to a position below the hollow drill bit and be coaxial with the hollow drill bit.

[0017] Preferably, it also includes a shielding device spaced apart from the drilling mechanism in the horizontal direction, which includes a shielding tank with a top opening and a cover for opening or closing the shielding tank. The robotic arm can move between the drilling mechanism and the shielding device. The robotic arm can move until the sampling cup it holds is directly above the shielding tank. When the robotic arm releases the sampling cup, the sampling cup falls freely.

[0018] Preferably, it also includes a safety cover and a third drive assembly. The safety cover is arranged below the drilling rig and can be vertically lifted and lowered. The safety cover can be lowered to contact the salt barrel below and cover the mouth of the salt barrel. The third drive assembly is used to drive the safety cover to rise and fall. The safety cover is provided with a sampling hole for the hollow drill bit to pass through.

[0019] Preferably, the robotic arm can move horizontally between the drilling mechanism and the shielding device, and can be lifted and lowered vertically, and the second driving assembly is used to drive the robotic arm to move horizontally between the drilling mechanism and the shielding device, and to drive the robotic arm to lift and lower vertically.

[0020] Preferably, the shielding device includes a transfer vehicle that is located on the ground and can move on the ground, the shielding tank is arranged on the transfer vehicle, the cover body is rotatably connected to the shielding tank and can be rotated to open or close the top opening of the shielding tank, and the transfer vehicle is provided with a fourth drive component for driving the cover body to rotate.

[0021] In a second aspect, the present application also provides a fully automatic salt block sampling system, comprising:

[0022] A shielding box is provided with a salt barrel inlet and a sample inlet, and the shielding box is provided with two automatic sealing doors for controlling the opening and closing of the salt barrel inlet and the sample inlet and the sample inlet respectively;

[0023] The sampling device as described above is arranged in the shielding box, and the shielding device can enter and exit the shielding box through the sample inlet and outlet;

[0024] A salt barrel conveying device comprises an external conveying mechanism arranged outside the shielding box and an internal conveying mechanism arranged inside the shielding box. The external conveying mechanism cooperates with the internal conveying mechanism to input or output the salt barrel into or out of the shielding box through the salt barrel inlet and outlet. The internal conveying mechanism is used to convey the salt barrel between the salt barrel inlet and outlet and the drilling mechanism, and the internal conveying mechanism can convey the salt barrel to the bottom of the drilling rig.

[0025] Preferably, the internal conveying mechanism includes a positioning assembly, which is arranged under the drilling rig, including two positioning members located on both sides of the conveying direction of the internal conveying mechanism, and the two positioning members can move toward or away from each other in a horizontal direction perpendicular to the conveying direction of the internal conveying mechanism, and is suitable for clamping the salt barrel transported by the internal conveying mechanism to the bottom of the drilling rig through the two positioning members to limit the horizontal movement of the salt barrel.

[0026] Preferably, the shielding box is provided with an exhaust device and an air intake device, the exhaust device is connected to the exhaust gas treatment system for extracting the air in the shielding box, and the air intake device is used to supply air outside the shielding box into the shielding box, and is suitable for forming a negative pressure in the shielding box by controlling the exhaust volume of the exhaust device to be greater than the air intake volume of the air intake device.

[0027] Preferably, a pressure sensor is provided in the shielding box.

[0028] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0029] 1. The sampling device of the present application is provided with a drilling mechanism and a layout mechanism. In the drilling mechanism, the drill rig drives the hollow drill bit to rotate, and is driven by the first driving component to descend to drill holes in the salt barrel below to sample the salt block. After sampling, the salt block sample is retained in the hollow drill bit. In the layout mechanism, the sampling cup is clamped by a mechanical arm, and the mechanical arm is driven by the second driving component to move horizontally close to or away from the drilling mechanism. Before drilling and sampling, the sampling cup is placed on the mechanical arm and the sampling cup is clamped by the mechanical arm. During sampling, the second driving component makes the sampling cup spaced apart from the drilling mechanism in the horizontal direction to ensure that the drilling rig can sample normally. After the drilling and sampling is completed, the drilling rig rises to a height higher than the sampling cup, and then the second driving component drives the mechanical arm to move toward the drilling mechanism to move the sampling cup to just below the hollow drill bit, and then the first driving component controls the drilling rig to descend. The hollow drill bit descends until it enters the sampling cup. The hollow drill bit is kept rotating during the descent of the drill rig. After the hollow drill bit enters the sampling cup, it cooperates with the reverse drilling bit in the sampling cup. During the descent and rotation of the hollow drill bit, the reverse drilling bit reversely drills into the salt block in the hollow drill bit. During the process, a part of the salt block in the hollow drill bit is crushed and falls into the sampling cup, and the other part of the salt block is limited by the reverse drilling bit during the ascent of the drill rig and rises together with the hollow drill bit, so that the salt block is separated from the hollow drill bit and retained in the sampling cup. In this way, the sampled salt block can be taken out of the hollow drill bit and into the sampling cup; the entire sampling process can be automatically carried out in a closed environment. The personnel only need to place the sampling cup before sampling and remove the sampling cup after sampling. There is no need to manually take out the salt block in the hollow drill bit. The work intensity of the personnel is low. During the sampling process, the personnel are exposed to the radiation environment for a short time and the radiation dose is small.

[0030] 2. The present application sets a shielding device, and the second driving component drives the mechanical arm to move between the drilling mechanism and the shielding device. When sampling, the second driving component makes the sampling cup located between the drilling mechanism and the shielding device. After the sampled salt block is taken out from the hollow drill bit into the sampling cup, the second driving component drives the mechanical arm to move toward the shielding device, so that the sampling cup moves to the top of the shielding tank. During the sampling process, the shielding tank is kept open. After the sampling cup moves to the top of the shielding tank, the mechanical arm releases the sampling cup, and the sampling cup falls into the shielding tank, completing the sampling operation. The entire sampling process can be automatically carried out in a closed environment. The personnel only need to place the sampling cup before sampling and close the shielding tank after sampling. The sampling efficiency is high, the work intensity of the personnel is low, and the radiation dose to the personnel during the entire sampling process is small.

[0031] 3. The present application sets a safety cover. When the salt barrel is transported to the bottom of the drilling rig of the drilling mechanism, the safety cover is lowered to press the salt barrel and cover the barrel mouth of the salt barrel. The hollow drill bit passes through the sampling hole of the safety cover to enter the salt barrel to drill and sample the salt block. The salt barrel is fixed by pressing the salt barrel with the safety cover to ensure the safety of the drilling and sampling work. At the same time, the safety cover can prevent the salt block from splashing into the external environment during drilling to avoid polluting the surrounding environment. At the same time, the mechanical arm is set to be horizontally movable and vertically liftable. When the salt block in the hollow drill bit is taken out, the sampling cup can be horizontally moved to a position directly below the hollow drill bit and above the safety cover by moving the mechanical arm, and the sampling cup can be lowered to contact the safety cover by lowering the mechanical arm, so as to support the sampling cup through the safety cover, so as to ensure that the hollow drill bit enters the sampling cup and continues to descend and rotate. The reverse drilling drill bit is supported to smoothly drill into the salt block in the hollow drill bit, so as to prevent the sampling cup from falling off the mechanical arm, so as to smoothly take the salt block in the hollow drill bit out into the sampling cup.

[0032] 4. The shielding device of the present application is configured to include a transfer vehicle that can travel on the ground, so that personnel can push the transfer shielding tank, and the fourth drive assembly drives the cover body to rotate to realize the function of opening or closing the shielding tank opening. The shielding tank can be opened and closed by automatic control, thereby reducing the contact between personnel and salt blocks to reduce radiation dose;

[0033] 5. The fully automatic salt block sampling system of the present application is provided with a shielding box, and is provided with a salt barrel inlet and a sample inlet and an outlet, as well as two automatic sealing doors for the salt barrel inlet and outlet and the sample inlet and outlet switches. The salt barrel is transported inside and outside the shielding box through the salt barrel inlet and outlet by a salt barrel conveying device, and the internal conveying mechanism conveys the salt barrel between the salt barrel inlet and outlet and the drilling mechanism to realize automatic conveying of the salt barrel; the sample inlet and outlet are used for the shielding device to enter and exit. Before sampling, the personnel push the shielding device into the shielding box and then close the sample inlet and outlet. During sampling, the salt barrel is automatically transported to the drilling mechanism and the salt barrel inlet and outlet are closed. Then the sampling process is completed in the closed shielding box. After sampling is completed and the salt barrel is output, the personnel only need to push out the shielding device. During the whole process, the personnel are not in contact with the radiation environment, thereby protecting the personnel safety;

[0034] 6. The present application sets up an exhaust device and an air intake device. The exhaust device is connected to the exhaust gas treatment system. The fan in the exhaust gas treatment system extracts the gas in the shielding box through the exhaust device, and the outside air enters the shielding box through the air intake device. By controlling the exhaust volume to be greater than the air intake volume, a negative pressure can be formed in the shielding box. The salt mist generated during the drilling sampling process is extracted by the exhaust device in the air and transported to the exhaust gas treatment system for treatment, thereby avoiding contamination of the shielding box and ensuring the cleanliness of the environment in the shielding box. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A schematic diagram of the structure of a fully automatic salt block sampling system provided by an embodiment of the present invention;

[0036] Figure 2 A structural schematic diagram of another perspective of the fully automatic salt block sampling system provided by an embodiment of the present invention;

[0037] Figure 3 A schematic diagram of the structure of a sampling device in a fully automatic salt block sampling system provided in an embodiment of the present invention;

[0038] Figure 4 A schematic diagram of the structure of the internal conveying mechanism in the fully automatic salt block sampling system provided in an embodiment of the present invention;

[0039] Figure 5 A schematic diagram of the structure of a shielding device in a fully automatic salt block sampling system provided in an embodiment of the present invention;

[0040] Figure 6 A schematic diagram of the structure of a sampling cup in a fully automatic salt block sampling system provided in an embodiment of the present invention;

[0041] Figure 7 A schematic diagram of the matching state of a sampling cup and a hollow drill bit in a fully automatic salt block sampling system provided in an embodiment of the present invention;

[0042] Figure 8 A schematic diagram of a robotic arm clamping a sampling cup and a hollow drill bit in a fully automatic salt block sampling system provided in an embodiment of the present invention.

[0043] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0044] 1. Shielding box; 11. Salt barrel inlet and outlet; 12. Automatic sealing door; 13. Sample inlet and outlet; 14. Lighting lamp; 15. Exhaust device; 16. Air intake device; 17. Observation window; 2. Drilling mechanism; 21. Drilling rig; 22. Hollow drill bit; 3. Shielding device; 31. Shielding tank; 32. Cover body; 33. Transfer vehicle; 34. Tank bracket; 35. Connecting frame; 4. Lofting mechanism; 41. Mechanical arm; 42. Sampling cup; 421. Back drilling drill bit; 5. Safety cover; 51. Sampling hole; 6. Internal conveying mechanism; 61. Positioning piece; 7. Control cabinet; 8. Salt barrel. DETAILED DESCRIPTION

[0045] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0047] It will be appreciated that spatial relationship terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be appreciated that, in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "under it" or "under it" will be oriented as being "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0048] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. The "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0049] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0050] Reference Figure 1-8 As shown, an embodiment of the present application provides a fully automatic salt block sampling system, which includes a shielding box 1, a sampling device and a salt barrel conveying device arranged in the shielding box 1, the salt barrel conveying device is used to input or output the salt barrel 8 into or out of the shielding box 1, and the sampling device is used to complete automatic sampling of the salt blocks in the salt barrel 8.

[0051] Reference Figure 1-2As shown, the shape of the shielding box 1 is designed according to needs. In this embodiment, it is illustrated in a rectangular shape. The shielding box 1 is provided with a salt barrel inlet and outlet 11. The shielding box 1 is provided with an automatic sealing door 12 for controlling the switch of the salt barrel inlet and outlet 11. The salt barrel inlet and outlet 11 is for the salt barrel 8 to enter and exit the shielding box 1. When the automatic sealing door 12 is closed, the shielding box 1 remains in a closed state.

[0052] Reference Figure 3 As shown, the salt barrel conveying device includes an external conveying mechanism arranged outside the shielding box 1 and an internal conveying mechanism 6 arranged inside the shielding box 1. The external conveying mechanism cooperates with the internal conveying mechanism 6 to input or output the salt barrel 8 into or out of the shielding box 1 through the salt barrel inlet and outlet 11. The internal conveying mechanism 6 is used to transport the salt barrel 8 between the salt barrel inlet and outlet 11 and the sampling station in the shielding box 1.

[0053] Specifically, both the external conveying mechanism and the internal conveying mechanism 6 use roller conveyors, and the conveying roller surfaces of the roller conveyors are horizontal, so as to horizontally convey the salt barrel 8, so that the external conveying mechanism and the internal conveying mechanism 6 are connected at the salt barrel inlet and outlet 11, and ensure that the automatic sealing door 12 is opened and closed normally.

[0054] Reference Figure 3 As shown, the sampling device includes a drilling mechanism 2, a shielding device 3 and a layout mechanism 4. The drilling mechanism 2 is arranged at the sampling station for sampling the salt blocks in the salt barrel 8. The shielding device 3 and the drilling mechanism 2 are spaced apart in the horizontal direction. The layout mechanism 4 is used to take out the salt block samples drilled by the drilling mechanism 2 and transfer them to the shielding device 3.

[0055] Reference Figure 3 As shown, specifically, the drilling mechanism 2 includes a drilling rig 21 and a first driving assembly. The output shaft axis of the drilling rig 21 is vertical and is connected to a hollow drill bit 22. The first driving assembly is used to drive the drilling rig 21 to rise and fall. The drilling rig 21 is arranged above the internal conveying mechanism 6. The internal conveying mechanism 6 can convey the salt barrel 8 to the bottom of the drilling rig 21. When the drilling rig 21 is started, the hollow drill bit 22 is driven to rotate, and the first driving assembly drives the drilling rig 21 to descend so as to drill and sample the salt blocks in the salt barrel 8 below.

[0056] Reference Figure 3-4 As shown, during drilling and sampling, in order to ensure the stability of the salt barrel 8 and to position the salt barrel 8, the internal conveying mechanism 6 is configured to include a positioning assembly, which is arranged below the drilling rig 21 and includes two positioning members 61 located on both sides of the conveying direction of the internal conveying mechanism 6. The two positioning members 61 can move toward or away from each other in a horizontal direction perpendicular to the conveying direction of the internal conveying mechanism 6, and are suitable for clamping the salt barrel 8 conveyed by the internal conveying mechanism 6 to the bottom of the drilling rig 21 through the two positioning members 61 to limit the horizontal movement of the salt barrel 8. Specifically, refer to Figure 4As shown, the positioning assembly is arranged on the roller conveyor frame of the internal conveying mechanism 6, and the positioning member 61 includes a positioning clamp projected in a V shape in the horizontal plane, and positioning rollers are arranged at both ends of the positioning clamp along the conveying direction of the salt barrel 8. When the salt barrel 8 is conveyed between the two positioning clamps, the two positioning members 61 move closer to each other, so that the salt barrel 8 moves to contact with the four positioning rollers. At this time, the two positioning members 61 clamp the salt barrel 8 and keep the salt barrel 8 at the set position, so that the position of the salt barrel 8 is kept consistent each time sampling is performed to ensure the accuracy of the sampling position, and the salt barrel 8 is restricted from moving in the horizontal direction to ensure the stable drilling sampling work. In this embodiment, the movement of the positioning member 61 is driven by a cylinder, and the two positioning members 61 correspond to two cylinders, and the cylinder axis is horizontal and perpendicular to the conveying direction of the internal conveying mechanism 6 to realize automatic control of the operation of the positioning assembly.

[0057] Reference Figure 3 As shown, further, the sampling device also includes a safety cover 5 and a third drive assembly. The safety cover 5 is arranged below the drilling rig 21 and can be vertically lifted and lowered. The safety cover 5 can be lowered to contact with the salt barrel 8 below and cover the barrel mouth of the salt barrel 8. The third drive assembly is used to drive the safety cover 5 to rise and fall. The safety cover 5 is provided with a sampling hole 51 for the hollow drill bit 22 to pass through. Specifically, the safety cover 5 is disc-shaped and arranged horizontally. The safety cover 5 is located directly above the positioning assembly. When the salt barrel 8 is transported to the bottom of the safety cover 5, the safety cover 5 is lowered to cover the barrel mouth of the salt barrel 8. The safety cover 5 is used to press the salt barrel 8 to fix the salt barrel 8, thereby ensuring the safety of the drilling sampling work. The hollow drill bit 22 passes through the sampling hole 51 of the safety cover 5 and enters the salt barrel 8 to drill and sample the salt block. The safety cover 5 can prevent the salt block from splashing into the external environment during drilling to avoid polluting the surrounding environment.

[0058] Specifically, a frame fixed to the ground inside the shielding box 1 is provided inside the shielding box 1, the drill 21 of the sampling device and the first drive assembly are installed on the frame, the safety cover 5 and the third drive assembly are also installed on the frame, and specifically the first drive assembly and the third drive assembly can both adopt a linear drive method such as a screw mechanism or a cylinder to realize automatic control of driving the drill 21 to rise and fall and the safety cover 5 to rise and fall, and the selection can be made according to actual needs.

[0059] Reference Figure 3 and Figure 5As shown, the shielding device 3 includes a shielding tank 31 with a top opening and a cover 32 for opening or closing the shielding tank 31. The sampler mechanism 4 is arranged between the drilling mechanism 2 and the shielding device 3, and includes a sampling cup 42, a mechanical arm 41 and a second driving component. The sampling cup 42 is provided with a sampling port. The mechanical arm 41 is used to clamp or release the sampling cup 42 with the sampling port facing upward, and when the sampling cup 42 is released, the sampling cup 42 falls freely. The second driving component is used to drive the mechanical arm 41 to move between the drilling mechanism 2 and the shielding device 3. The sampling cup 42 can move with the mechanical arm 41 to be located directly below the hollow drill bit 22 or directly above the shielding tank 31. When the sampling cup 42 is located directly below the hollow drill bit 22, the hollow drill bit 22 can be lowered with the drilling rig 21 to enter the sampling cup 42.

[0060] Reference Figure 6-7 As shown, further, a back-drilling drill bit 421 is provided in the sampling cup 42. When the hollow drill bit 22 descends to enter the sampling cup 42 and continues to descend and rotate, the back-drilling drill bit 421 drills into the salt block in the hollow drill bit 22, and the salt block is separated from the hollow drill bit 22 during the ascent and rotation of the hollow drill bit 22.

[0061] Reference Figure 6-7 As shown, specifically, the sampling cup 42 is set to be cylindrical, one end of the sampling cup 42 is closed and the other end is open to form a sampling port, the back drilling drill bit 421 is coaxial with the sampling cup 42 and fixed at the closed end of the sampling cup 42, the sampling cup 42 is suitable for being clamped by the robot arm 41 with the axis vertical and the sampling port facing upward, and the sampling cup 42 can be moved with the robot arm 41 to be located below the hollow drill bit 22 and be coaxial with the hollow drill bit 22.

[0062] Reference Figure 7As shown, when the hollow drill bit 22 drills and samples the salt block in the salt barrel 8, the second drive component makes the sampling cup 42 located between the drilling mechanism 2 and the layout mechanism 4 to ensure that the drill rig 21 can sample normally. After the drilling and sampling is completed, the drill rig 21 rises to a height higher than the sampling cup 42, and then the second drive component drives the mechanical arm 41 to move toward the drilling mechanism 2 to move the sampling cup 42 to just below the hollow drill bit 22. Then the first drive component controls the drill rig 21 to descend so that the hollow drill bit 22 descends to enter the sampling cup 42. During the descent of the drill rig 21, the hollow drill bit 22 is kept rotating. After entering the sampling cup 42, the hollow drill bit 22 cooperates with the back-drilling drill bit 421 in the sampling cup 42. During the descent and rotation of the hollow drill bit 22, the back-drilling drill bit 421 back-drills into the hollow drill bit 2 2, during the process, part of the salt block in the hollow drill bit 22 is crushed and falls into the sampling cup 42, and the other part of the salt block is limited by the back drilling drill bit 421 during the rising process of the drilling rig 21 and rises together with the hollow drill bit 22, so that the salt block is separated from the hollow drill bit 22 and retained in the sampling cup 42, so that the sampled salt block can be taken out from the hollow drill bit 22, and then the second driving component drives the mechanical arm 41 to move toward the shielding device 3, so that the sampling cup 42 moves to the top of the shielding tank 31, and the shielding tank 31 is kept open during the sampling process. After the sampling cup 42 moves to the top of the shielding tank 31, the sampling cup 42 is released, and the sampling cup 42 falls into the shielding tank 31, that is, the sampling operation is completed, and then the cover body 32 is closed to keep the sampled salt block in the shielding tank 31 to shield the radiation.

[0063] Reference Figure 3 As shown, further, the mechanical arm 41 is configured to be horizontally movable between the drilling mechanism 2 and the shielding device 3, and the mechanical arm 41 can be vertically lifted and lowered, and the second driving assembly is used to drive the mechanical arm 41 to be horizontally movable between the drilling mechanism 2 and the shielding device 3, and to drive the mechanical arm 41 to be vertically lifted and lowered. When the salt block in the hollow drill bit 22 is taken out, the sampling cup 42 is horizontally moved to a position directly below the hollow drill bit 22 and above the safety cover 5 by moving the mechanical arm 41, and the sampling cup 42 is lowered to contact the safety cover 5 by the mechanical arm 41, so as to support the sampling cup 42 through the safety cover 5, and ensure that the hollow drill bit 22 enters the sampling cup 42 and continues to descend and rotate, and the back drilling drill bit 421 is supported to smoothly drill into the salt block in the hollow drill bit 22, and the mechanical arm 41 is not required to support the sampling cup 42, so as to prevent the sampling cup 42 from falling off from the mechanical arm 41, so as to smoothly take the salt block in the hollow drill bit 22 out of the sampling cup 42.

[0064] Specifically, the second driving assembly can adopt two screw mechanisms or two cylinders or a combination of the two to realize the horizontal and vertical movement functions of the robot arm 41 and realize automatic control. The robot arm 41 selects a suitable robot arm 41 according to needs to stably clamp the sampling cup 42.

[0065] Reference Figure 3 and Figure 8 As shown, further, the drill chuck of the drill rig 21 can adopt a self-locking chuck, and the mechanical arm 41 can also be used to clamp or release the hollow drill bit 22 in the vertical state of the axis, and the hollow drill bit 22 can be moved with the mechanical arm 41 to be located below the self-locking chuck and coaxial with the self-locking chuck. When installing the hollow drill bit 22 before the operation, the personnel can place the hollow drill bit 22 on the mechanical arm 41 and clamp it, and then the mechanical arm 41 and the second drive assembly transfer the hollow drill bit 22 to the bottom of the self-locking chuck of the drill rig 21, and the hollow drill bit 22 is assembled on the self-locking chuck by lowering the drill rig 21 or raising the mechanical arm 41. The installation of the drill bit does not require personnel to enter the shielding box 1, thereby reducing the time personnel remain in the radiation environment.

[0066] Reference Figure 5 As shown, further, in order to facilitate the transfer of the shielding device 3, the shielding device 3 also includes a transfer vehicle 33, the transfer vehicle 33 is used to be set on the ground and can travel on the ground, the shielding tank 31 is set on the transfer vehicle 33, the top of the shielding tank 31 is open and connected to a cover 32 for opening or closing the shielding tank 31. Specifically, the shielding tank 31 is fixed on the transfer vehicle 33, the transfer vehicle 33 is provided with a tank support 34 and a handrail, the bottom of the transfer vehicle 33 is provided with wheels for its travel, and the cover 32 is set to be rotatably connected to the shielding tank 31, and can be rotated to open or close the top opening of the shielding tank 31, and a fourth driving component for driving the cover 32 to rotate is provided on the transfer vehicle 33. In this embodiment, the cover body 32 is connected to the tank body bracket 34 through a connecting frame 35. The connecting frame 35 is rotatably connected to the tank body bracket 34 and the rotating axis is horizontal. The fourth driving component adopts an electric cylinder. The electric cylinder body and the piston rod are rotatably connected to the transfer vehicle 33 and the connecting frame 35 respectively, and the rotating axis and the connecting frame 35 are parallel to the rotating axis of the tank body bracket 34. The connecting frame 35 is driven to rotate by the extension and retraction of the electric cylinder, thereby driving the cover body 32 to rotate to realize the function of opening or closing the shielding tank 31, and it can be automatically controlled.

[0067] In order to realize the linkage between the switch control of the shielding tank 31 and the sample setting mechanism 4, the transfer vehicle 33 has an aviation interface for electrical connection with the system control module to realize the linkage control of the switch action of the shielding tank 31 and the action of other mechanisms of the system, ensuring that the entire sampling process is successfully completed according to the set procedure.

[0068] Reference Figure 2 As shown, further, the shielding box 1 is provided with a sample inlet and outlet 13, and is also provided with an automatic sealing door 12 for opening and closing the sample inlet and outlet 13. The sample inlet and outlet 13 is for the shielding device 3 to enter and exit the shielding box 1. Before sampling, the personnel pushes the transfer vehicle 33 into the shielding box 1 to set a position, connects the aviation connector and closes the automatic sealing door 12 of the sample inlet and outlet 13. After the sampling is completed, the personnel pushes the transfer vehicle 33 out to transfer the taken out samples.

[0069] Reference Figure 3 As shown, further, in order to facilitate personnel to observe the sampling situation, an illumination lamp 14 is arranged at the top of the shielding box 1, and an observation window 17 is arranged on the shielding box 1.

[0070] Reference Figure 2-3 As shown, further, salt mist is easily generated during the sampling process. In order to avoid polluting the environment inside the shielding box 1, an exhaust device 15 and an air intake device 16 are provided on the shielding box 1. The exhaust device 15 is connected to the exhaust gas treatment system to extract the air in the shielding box 1, and the air intake device 16 is used to supply air outside the shielding box 1 to enter the shielding box 1. It is suitable for forming a negative pressure in the shielding box 1 by controlling the exhaust volume of the exhaust device 15 to be greater than the air intake volume of the air intake device 16. Specifically, the exhaust device 15 is arranged on the top of the shielding box 1, and the air intake device 16 is arranged on the side wall of the shielding box 1 and close to the bottom. The exhaust device 15 and the air intake device 16 can be configured to include an exhaust pipe and an air intake pipe respectively. The exhaust pipe and the air intake pipe are both connected to the inside and outside of the shielding box 1, and filters are arranged in the exhaust pipe and the air intake pipe. At the same time, a valve is arranged in the exhaust pipe to close the shielding box 1 when not in use to avoid air exchange. The filter can filter particulate matter in the air drawn out of the shielding box 1 and dust in the air entering the shielding box 1 to keep the shielding box 1 clean; and the filter is equipped with a differential pressure gauge to display the internal and external pressure difference. When personnel conduct inspections, they can judge whether it is blocked by the pressure difference.

[0071] Furthermore, a pressure sensor is also provided in the shielding box 1, which is connected to the control cabinet 7 provided outside the shielding box 1 to display the real-time pressure in the shielding box 1. The control cabinet 7 is provided with high and low pressure alarms. After the shielding device 3 is pushed into the shielding box 1 and the automatic sealing door 12 of the sample inlet and outlet 13 is closed, the exhaust device 15 exhausts air while the air intake device 16 intakes air, so that a negative pressure is formed in the shielding box 1. After the pressure reaches the set value, the automatic sealing door 12 of the salt barrel inlet and outlet 11 can be opened. At this time, the salt mist is discharged together with the air by the exhaust device 15 during the transportation of the salt barrel 8, so as to avoid scattering in the shielding box 1 and contaminating the shielding box 1.

[0072] The integrated control system in the control cabinet 7 controls the operation of each mechanism. Each mechanism operates according to a preset action sequence under the design program, and each mechanism can also be individually controlled by jog under the input command of personnel.

[0073] The process flow of this embodiment is as follows:

[0074] The automatic sealing door 12 of the sample inlet and outlet 13 is opened, and the sampling personnel push the shielding device 3 into the designated position in the shielding box 1 and connect the connection interface between the shielding device 3 and the control module.

[0075] The personnel places the hollow drill bit 22 on the clamp of the robotic arm 41, the robotic arm 41 clamps the drill bit, and the robotic arm 41 moves with the hollow drill bit 22 to just below the drilling rig 21. The drilling rig 21 descends until the hollow drill bit 22 and the self-locking chuck are connected, the drilling rig 21 rises back to its original position, and the robotic arm 41 returns to its original position.

[0076] The operator places the sampling cup 42 on the robotic arm 41, which clamps the sampling cup 42. The operator exits the shielding box 1, closes the automatic sealing door 12 of the sample inlet and outlet 13, enters a work instruction on the control cabinet 7, and leaves the on-site area.

[0077] The external conveying mechanism conveys the salt barrel 8 to the salt barrel inlet and outlet 11 .

[0078] After the system receives the signal that the barrel is in place, it controls the valve of the exhaust device 15 to open, and the exhaust gas treatment system fan is turned on to extract the air in the shielding box 1. The external air enters the shielding box 1 through the air intake device 16. The exhaust volume is controlled to be greater than the air intake volume to form a negative pressure in the shielding box 1.

[0079] After the system receives the barrel arrival signal and the pressure sensor pressure signal reaches the set value, it opens the automatic sealing door 12 of the salt barrel inlet and outlet 11, and the external conveying mechanism and the internal conveying mechanism 6 operate simultaneously to convey the salt barrel 8 into the shielding box 1, and the internal conveying mechanism 6 conveys the salt barrel 8 to the bottom of the drilling rig 21.

[0080] The system receives the barrel in place signal and closes the salt barrel inlet and outlet 11 and the automatic sealing door 12. The positioning component starts to lock the salt barrel 8. The safety cover 5 descends and presses the salt barrel 8 to prevent the salt barrel 8 from shifting and salt spray splashing during the sampling process.

[0081] Sampling begins, the drill 21 starts and descends, the hollow drill bit 22 passes through the sampling hole 51 and enters the salt barrel 8 to drill the salt block in the barrel. After drilling is completed, the salt block sample is retained in the hollow drill bit 22, and the drill 21 reverses and rises to leave the salt barrel 8.

[0082] The mechanical arm 41 moves with the sampling cup 42 to the bottom of the hollow drill bit 22, the mechanical arm 41 descends until the sampling cup 42 contacts the safety cover 5, the drill rig 21 starts to drive the hollow drill bit 22 to rotate, and at the same time the drill rig 21 descends, the hollow drill bit 22 enters the sampling cup 42, the drill rig 21 continues to run and descends, the backdrilling drill bit 421 in the sampling cup 42 rotates relative to the hollow drill bit 22, the backdrilling drill bit 421 drills into the salt block in the hollow drill bit 22, part of the salt block is crushed and scattered in the sampling cup 42, the drill rig 21 descends to a set height and then rises, the salt block is restricted by the backdrilling drill bit 421 and rises with the hollow drill bit 22, the salt block is left in the sampling cup 42, the sampling is completed, and the drill rig 21 returns to its original position.

[0083] The robotic arm 41 moves with the sampling cup 42 to the top of the shielding tank 31, the cover 32 of the sampling cup 42 remains open, the robotic arm 41 descends until the sampling cup 42 enters the shielding tank 31, the robotic arm 41 releases the sampling cup 42, the sampling cup 42 falls into the shielding tank 31, the cover 32 rotates to close the shielding tank 31, and sends a signal to the control system.

[0084] After the control system receives the closing signal of the shielding tank 31, it controls the automatic sealing door 12 of the salt barrel inlet and outlet 11 to open, and the internal conveying mechanism 6 and the external conveying mechanism operate simultaneously to move the salt barrel 8 out of the shielding box 1. The external conveying mechanism control system sends a barrel in place signal, and the system receives the signal to close the automatic sealing door 12 of the salt barrel inlet and outlet 11, and then closes the exhaust device 15 valve.

[0085] The system opens the automatic sealing door 12 of the sample inlet and outlet 13 and issues a prompt. The personnel can enter the shielding box 1, push out the shielding device 3 and leave, and the sampling is completed.

[0086] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A sampling device, characterized in that: include: The drilling mechanism (2) comprises: A drilling machine (21) with an output shaft axis vertically connected to a hollow drill bit (22); A first driving assembly for driving the drilling rig (21) to rise and fall; The lofting mechanism (4) comprises: A sampling cup (42) provided with a sampling port; A mechanical arm (41) is used to clamp or release a sampling cup (42) with the sampling port facing upward. The mechanical arm (41) can move in a horizontal direction toward or away from the drilling mechanism (2), and the mechanical arm (41) can move until the sampling cup (42) clamped by it is located directly below the hollow drill bit (22). When the sampling cup (42) is located directly below the hollow drill bit (22), the hollow drill bit (22) can be lowered along with the drilling machine (21) to enter the sampling cup (42); A second driving assembly, used for driving the mechanical arm (41) to move; Wherein, a back-drilling drill bit (421) is provided in the sampling cup (42), which is suitable for drilling into the salt block in the hollow drill bit (22) through the back-drilling drill bit (421) when the hollow drill bit (22) descends into the sampling cup (42) and continues to descend and rotate.

2. The sampling device according to claim 1, characterized in that: The sampling cup (42) is cylindrical, one end of the sampling cup (42) is closed and the other end is open to form a sampling port, the back-drilling drill bit (421) is coaxial with the sampling cup (42) and fixed at the closed end of the sampling cup (42), the sampling cup (42) is suitable for being clamped by the mechanical arm (41) with its axis vertical and the sampling port facing upward, and the sampling cup (42) can move with the mechanical arm (41) to be located below the hollow drill bit (22) and coaxial with the hollow drill bit (22).

3. The sampling device according to claim 1, characterized in that: It also includes a shielding device (3) spaced apart from the drilling mechanism (2) in the horizontal direction, which includes a shielding tank (31) with an opening at the top and a cover (32) for opening or closing the shielding tank (31). The mechanical arm (41) can move between the drilling mechanism (2) and the shielding device (3). The mechanical arm (41) can move until the sampling cup (42) it holds is located directly above the shielding tank (31). When the mechanical arm (41) releases the sampling cup (42), the sampling cup (42) falls freely.

4. The sampling device according to claim 3, characterized in that: It also includes a safety cover (5) and a third drive assembly. The safety cover (5) is arranged below the drilling rig (21) and can be vertically lifted. The safety cover (5) can be lowered to contact with the salt barrel (8) below and cover the mouth of the salt barrel (8). The third drive assembly is used to drive the safety cover (5) to rise and fall. The safety cover (5) is provided with a sampling hole (51) for the hollow drill bit (22) to pass through.

5. The sampling device according to claim 4, characterized in that: The mechanical arm (41) can move horizontally between the drilling mechanism (2) and the shielding device (3), and the mechanical arm (41) can be lifted vertically; the second driving component is used to drive the mechanical arm (41) to move horizontally between the drilling mechanism (2) and the shielding device (3), and to drive the mechanical arm (41) to be lifted vertically.

6. The sampling device according to claim 3, characterized in that: The shielding device (3) comprises a transfer vehicle (33) which is arranged on the ground and can move on the ground, the shielding tank (31) is arranged on the transfer vehicle (33), the cover body (32) is rotatably connected to the shielding tank (31) and can be rotated to open or close the top opening of the shielding tank (31), and the transfer vehicle (33) is provided with a fourth driving component for driving the cover body (32) to rotate.

7. A fully automatic salt block sampling system, characterized in that: include: A shielding box (1) is provided with a salt barrel inlet and outlet (11) and a sample inlet and outlet (13), and the shielding box (1) is provided with two automatic sealing doors (12) for controlling the opening and closing of the salt barrel inlet and outlet (11) and the sample inlet and outlet (13) respectively; The sampling device according to any one of claims 3 to 6, which is arranged in the shielding box (1), and the shielding device (3) can enter and exit the shielding box (1) through the sample inlet and outlet (13); A salt barrel conveying device comprises an external conveying mechanism arranged outside the shielding box (1) and an internal conveying mechanism (6) arranged inside the shielding box (1), wherein the external conveying mechanism cooperates with the internal conveying mechanism (6) to input or output the salt barrel (8) into or out of the shielding box (1) through the salt barrel inlet and outlet (11), and the internal conveying mechanism (6) is used to convey the salt barrel (8) between the salt barrel inlet and outlet (11) and the drilling mechanism (2), and the internal conveying mechanism (6) can convey the salt barrel (8) to the bottom of the drilling rig (21).

8. The fully automatic salt block sampling system according to claim 7, characterized in that: The internal conveying mechanism (6) comprises a positioning assembly, which is arranged below the drilling rig (21) and comprises two positioning members (61) located on both sides of the conveying direction of the internal conveying mechanism (6). The two positioning members (61) can move towards or away from each other in a horizontal direction perpendicular to the conveying direction of the internal conveying mechanism (6), and are suitable for clamping the internal conveying mechanism (6) and conveying the salt barrel (8) to the bottom of the drilling rig (21) through the two positioning members (61) to limit the horizontal movement of the salt barrel (8).

9. The fully automatic salt block sampling system according to claim 7, characterized in that: The shielding box (1) is provided with an exhaust device (15) and an air intake device (16); the exhaust device (15) is connected to an exhaust gas treatment system for extracting air from the shielding box (1); the air intake device (16) is used to supply air outside the shielding box (1) into the shielding box (1), and is suitable for forming a negative pressure in the shielding box (1) by controlling the exhaust volume of the exhaust device (15) to be greater than the air intake volume of the air intake device (16).

10. The fully automatic salt block sampling system according to claim 7, characterized in that: A pressure sensor is arranged inside the shielding box (1).

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