Automatic sampling device for raw material barrel in nuclear industry

Abstract

The utility model discloses an automatic sampling device for a nuclear industry raw material barrel, which comprises a sampling truss, a sampling action mechanism and a roller conveyor, the sampling action mechanism is mounted on the sampling truss, and the roller conveyor is arranged below the sampling truss; the sampling action mechanism comprises a spiral sampling needle assembly and a sample bottle clamping and moving assembly, the spiral sampling needle assembly is arranged on the sampling truss and is positioned right above the roller conveyor, and the sample bottle clamping and moving assembly is arranged on the sampling truss; the spiral sampling needle assembly is not limited to the structure disclosed by the utility model, so that the whole device disclosed by the utility model is stronger in practicability and wider in adaptability, and has a very good popularization value.

Description

Technical Field

[0001] The utility model relates to the technical field of non-standard mechanical automation equipment, in particular to an automatic sampling device for raw material barrels in the nuclear industry. Background Art

[0002] Nuclear raw materials refer to materials used in nuclear technology applications such as nuclear power generation and nuclear weapons production. Naturally abundant, these materials are important energy resources available to humanity. Uranium ore is one of the most important nuclear raw materials. It is a naturally occurring uranium-containing ore found primarily in granite, biotite schist, and sandstone within the Earth's crust. Uranium ore is highly concentrated in countries such as Australia, Canada, and Kazakhstan. These nuclear raw materials are crucial energy resources available to humanity and are of great significance for nuclear technology applications such as nuclear power generation and nuclear weapons production. However, the use of these materials must be strictly managed and controlled to ensure safety and prevent nuclear proliferation. Nuclear raw materials are generally stored in sealed iron drums. Before storage, these drums must be opened, sampled, and analyzed and recorded to confirm the purity of the material and the accuracy of the collected data. Currently, opening and sampling drums of nuclear raw materials are performed manually. Nuclear raw materials are radioactive. During these operations, radioactive particles and α and β radiation from aerosols can pose a risk to operators. Furthermore, manual opening and sampling are inefficient. Nuclear industry raw material storage may cause water absorption and compaction, making sampling difficult. Therefore, it is necessary to design a fully automated sampling device. Utility Model Content

[0003] The purpose of this utility model is to provide an automatic sampling device for nuclear industry raw material barrels in response to the above situation. The automatic sampling device is used to replace the manual sampling process, reduce human participation as much as possible, and reduce the risk of personnel being exposed to radiation.

[0004] The specific scheme of the utility model is: an automatic sampling device for nuclear industry raw material barrels, including a sampling truss, a sampling action mechanism and a roller conveyor, wherein: the sampling action mechanism is installed on the sampling truss, and the roller conveyor is placed below the sampling truss; the sampling action mechanism includes a spiral sampling needle assembly and a sample bottle clamping and moving assembly, the spiral sampling needle assembly is placed on the sampling truss and is located directly above the roller conveyor, and the sample bottle clamping and moving assembly is placed on the sampling truss.

[0005] Furthermore, the sample bottle clamping and moving assembly described in the utility model includes a sampling slide arranged in the middle of the sampling truss, and a sampling slider is provided on the sampling slide. The sampling slider moves laterally along the sampling slide under the drive of the first sampling servo motor and the provided screw guide mechanism. The sampling slider is equipped with a second sampling servo motor and a sampling clamp. The sampling clamp moves up and down under the drive of the second sampling servo motor and another set of screw guide mechanisms. The sampling clamp is equipped with a micro electric cylinder for clamping movement.

[0006] Furthermore, the spiral sampling needle assembly in the present invention includes a sampling needle vertical movement mechanism, which is equipped with a sampling needle rotation servo motor, a spiral drill bit and an outer rotating sleeve. The spiral drill bit is placed in the outer rotating sleeve. The output end of the sampling needle rotation servo motor is transmission-connected to the spiral drill bit and drives the spiral drill bit to move spirally and telescopically up and down along the inside of the outer rotating sleeve. At the same time, the outer rotating sleeve is also driven to operate by another rotating sleeve servo motor; the sampling needle vertical movement mechanism includes a vertical slide rail, a vertical sliding frame, a vertical drive servo motor and a vertical drive screw. The vertical sliding frame moves up and down driven by the vertical drive servo motor and the vertical drive screw.

[0007] Furthermore, a platform for placing sample bottles is provided on one side of the interior of the sampling truss in the present invention.

[0008] Furthermore, the sampling truss described in the present invention is a vertical frame formed by assembling and welding a plurality of vertical poles and horizontal poles, wherein the horizontal poles and vertical poles are both made of square hollow steel pipes.

[0009] Furthermore, the roller conveyor described in the present invention is composed of a conveying frame, a roller table and a conveying motor, and the rollers on the roller table are driven to rotate by the conveying motor and the sprocket chain.

[0010] The beneficial effects achieved by the present invention are as follows:

[0011] 1. The utility model is used to replace the manual sampling process. By designing a new automated system, it can reduce manual participation as much as possible and reduce the risk of personnel being exposed to radiation. The entire device adopts automated operation with high efficiency and strong reliability.

[0012] 2. The spiral sampling needle assembly in the present invention is not limited to the structure described in the present invention, which makes the entire device of the present invention more practical and more adaptable, and has great promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a structural diagram of the roller conveyor in the utility model.

[0015] In the figure: 1—raw material barrel, 2—auger bit, 3—external rotating sleeve, 4—sampling needle rotation servo motor, 5—vertical drive servo motor, 6—vertical sliding frame, 7—vertical slide rail, 8—second sampling servo motor, 9—sampling slider, 10—sampling clamp, 11—sampling slide, 12—first sampling servo motor, 13—platen, 14—sampling bottle, 15—sampling truss, 16—roller conveyor, 17—roller table, 18—conveyor frame, 19—conveyor motor. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings of the present invention to clearly and completely describe the technical solution of the present invention. It is obvious that the embodiments described are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the present invention. In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed or operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0017] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0018] See also Figures 1 and 2The utility model is an automatic sampling device for nuclear industry raw material barrels, including a sampling truss 15, a sampling action mechanism and a roller conveyor 16, wherein: the sampling action mechanism is installed on the sampling truss, and the roller conveyor is placed below the sampling truss; the sampling action mechanism includes a spiral sampling needle assembly and a sample bottle clamping and moving assembly, the spiral sampling needle assembly is placed on the sampling truss and is located directly above the roller conveyor, and the sample bottle clamping and moving assembly is placed on the sampling truss. Furthermore, the sample bottle clamping and moving assembly in the present invention includes a sampling slide 11 arranged in the middle of the sampling truss, and a sampling slider 9 is provided on the sampling slide. The sampling slider moves laterally along the sampling slide under the drive of the first sampling servo motor 12 and the provided screw guide mechanism. The sampling slider is equipped with a second sampling servo motor 8 and a sampling clamp 10. The sampling clamp moves up and down under the drive of the second sampling servo motor and another set of screw guide mechanisms. The sampling clamp is equipped with a micro electric cylinder for clamping movement.

[0019] Furthermore, the spiral sampling needle assembly described in this embodiment includes a sampling needle vertical movement mechanism, which is equipped with a sampling needle rotation servo motor 4, a spiral drill bit 2 and an outer rotating sleeve 3. The spiral drill bit is placed in the outer rotating sleeve. The output end of the sampling needle rotation servo motor is transmission-connected to the spiral drill bit and drives the spiral drill bit to move spirally up and down along the inside of the outer rotating sleeve. At the same time, the outer rotating sleeve is also driven by another rotating sleeve servo motor; the sampling needle vertical movement mechanism includes a vertical slide rail 7, a vertical sliding frame 6, a vertical drive servo motor 5 and a vertical drive screw. The vertical sliding frame moves up and down driven by the vertical drive servo motor and the vertical drive screw.

[0020] Furthermore, a platform 13 for placing sample bottles is provided on one side of the interior of the sampling truss described in this embodiment. Furthermore, the sampling truss described in this utility model is a vertical frame formed by assembling and welding a plurality of vertical and horizontal bars, wherein the horizontal and vertical bars are both made of square hollow steel tubes. Furthermore, the roller conveyor described in this utility model is composed of a conveyor frame 18, a roller table 17, and a conveyor motor 19. The rollers on the roller table are driven to rotate by the conveyor motor and sprocket chain.

[0021] The sampling device consists of a roller conveyor, a spiral sampling needle assembly, a sample bottle clamping and moving assembly, and a sampling truss. The spiral sampling needle assembly is installed on the top of the sampling truss and is equipped with three sets of servo motors. The top servo motor drives the spiral sampling needle assembly to move up and down in the Z axis on the vertical slide rail. The spiral sampling needle assembly is composed of a spiral drill bit, an external rotating sleeve, and a sampling needle rotation servo motor; the main body of the sample bottle clamping and moving assembly is an aluminum sampling slide installed in the middle of the sampling truss and is equipped with two sets of servo motors. The servo motor drives the slider on the aluminum sampling slide to move horizontally. The sampling slider is equipped with a screw and a guide rail to drive the sampling jaws to move up and down. The sampling jaws are equipped with a micro electric cylinder to drive the clamping movement and are equipped with a weighing module.

[0022] The sampling unit operates as follows: After a barrel of nuclear material is delivered via conveyor equipment, the barrel to be sampled is positioned on a roller conveyor. The servo motor at the top of the spiral sampling needle assembly drives the spiral sampling needle deep into the opened barrel and then pauses. The auger bit and outer rotating sleeve within the spiral sampling needle assembly begin to rotate downward clockwise. Upon contact with the barrel's material, the outer rotating sleeve continues to rotate clockwise but stops moving downward. The auger bit continues to rotate clockwise downward to the set depth, and the outer rotating sleeve begins to move downward to the same depth as the auger bit. At this point, the sampled material remains in the gap between the auger bit and the outer rotating sleeve. Then, both the auger bit and the outer rotating sleeve stop rotating and move upward to their upper limit. The sample bottle clamping and moving assembly grips the sample bottle from the barrel side to directly below the spiral sampling needle assembly. After the auger and outer rotating sleeve simultaneously descend to a certain depth within the sampling bottle, the outer rotating sleeve independently ascends and rotates clockwise, while the auger begins to rotate counterclockwise, releasing the sampled material into the sample bottle. When the weighing module in the sampling jaws senses the sampled material has reached a certain weight, the auger retracts and stops rotating. Once the spiral sampling needle is retracted, the sample bottle clamping assembly clamps the sample bottle onto the storage platform on the side of the sampling truss.

[0023] This utility model is used to replace the manual sampling process. By designing a new automated system, it minimizes manual participation and reduces the risk of personnel exposure to radiation. The entire device adopts automated operation, which is highly efficient and reliable. The spiral sampling needle assembly in this utility model is not limited to the structure described in this utility model. This makes the entire device of this utility model more practical and adaptable, and has great promotion value.

Claims

1. Automatic sampling device for nuclear industry raw material barrels, characterized in that: It includes a sampling truss, a sampling action mechanism and a roller conveyor, wherein: the sampling action mechanism is installed on the sampling truss, and the roller conveyor is arranged below the sampling truss; the sampling action mechanism includes a spiral sampling needle assembly and a sample bottle clamping and moving assembly, the spiral sampling needle assembly is arranged on the sampling truss and is located directly above the roller conveyor, and the sample bottle clamping and moving assembly is arranged on the sampling truss.

2. The automatic sampling device for nuclear industry raw material barrels according to claim 1 is characterized in that: The sample bottle clamping and moving assembly includes a sampling slide arranged in the middle of the sampling truss, and a sampling slider is arranged on the sampling slide. The sampling slider moves laterally along the sampling slide under the drive of a first sampling servo motor and an equipped screw guide mechanism. A second sampling servo motor and a sampling clamp are installed on the sampling slider. The sampling clamp moves up and down under the drive of the second sampling servo motor and another set of equipped screw guide mechanisms. A micro electric cylinder is arranged inside the sampling clamp to perform clamping movement.

3. The automatic sampling device for nuclear industry raw material barrels according to claim 1 is characterized in that: The spiral sampling needle assembly includes a sampling needle vertical moving mechanism, on which a sampling needle rotating servo motor, a spiral drill bit and an outer rotating sleeve are installed. The spiral drill bit is placed in the outer rotating sleeve. The output end of the sampling needle rotating servo motor is transmission-connected with the spiral drill bit and drives the spiral drill bit to move spirally and telescopically up and down along the inside of the outer rotating sleeve. At the same time, the outer rotating sleeve is also driven to operate by another rotating sleeve servo motor. The sampling needle vertical moving mechanism includes a vertical slide rail, a vertical sliding frame, a vertical drive servo motor and a vertical drive screw. The vertical sliding frame moves up and down driven by the vertical drive servo motor and the vertical drive screw.

4. The automatic sampling device for nuclear industry raw material barrels according to claim 1 is characterized in that: A platform for placing sample bottles is provided on one inner side of the sampling truss.

5. The automatic sampling device for nuclear industry raw material barrels according to claim 1 is characterized in that: The sampling truss is a vertical frame formed by assembling and welding a plurality of vertical poles and horizontal poles, wherein the horizontal poles and the vertical poles are both made of square hollow steel pipes.

6. The automatic sampling device for nuclear industry raw material barrels according to claim 1 is characterized in that: The roller conveyor is composed of a conveying frame, a roller table and a conveying motor. The rollers on the roller table are driven to rotate by the conveying motor and a sprocket chain.

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