Stope filling body sampling device

Abstract

The utility model discloses a stope filling body sampling device, and relates to the technical field of filling body sampling, the stope filling body sampling device comprises a drilling machine and a first supporting frame, the rotating end of the drilling machine is fixedly provided with a connecting column, the bottom of the connecting column is in threaded connection with a middle-section sampling cavity column, and the bottom of the middle-section sampling cavity column is in threaded connection with a lower-section sampling cavity column; an electric telescopic rod is fixed in the connecting column, and guide grooves are formed in the inner walls of the left ends and the right ends of the middle-section sampling cavity column and the lower-section sampling cavity column. According to the utility model, the sampling column can be quickly expanded and shrunk through the standardized threaded interface, so as to meet the depth requirements of different stopes. The partition plate of each section of sampling column is linked with the electric telescopic rod to ensure that the sampling window is only opened at a target depth, and cross contamination of upper and lower samples is avoided.

Description

Technical Field

[0001] This utility model relates to the field of backfill sampling technology, and in particular to a backfill sampling device for mining sites. Background Technology

[0002] Backfilling is a common mining method that involves filling the stope with backfill materials (such as tailings, waste rock, cement, etc.) to support the surrounding rock, reduce surface subsidence, and improve resource recovery. The quality of the backfill directly affects the safety and economic benefits of the mine, therefore, it is necessary to regularly sample and test the backfill.

[0003] Existing filling material sampling devices have problems: they cannot adapt to filling materials at different depths in the mining area, resulting in a limited sampling range. At the same time, external impurities are easily mixed in during the sampling process, and samples from different depths are easily mixed with each other, affecting the accuracy of the samples. Utility Model Content

[0004] This invention aims to at least partially solve one of the technical problems in related technologies. Therefore, one objective of this invention is to provide a sampling device for mine filling materials that ensures the sampling window is opened only at the target depth, avoiding cross-contamination between samples from different layers.

[0005] The sampling device for backfill in a mining area according to this utility model includes a drilling rig and a first support frame. A connecting column is fixed to the rotating end of the drilling rig. A middle sampling chamber column is threadedly connected to the bottom of the connecting column. A lower sampling chamber column is threadedly connected to the bottom of the middle sampling chamber column. An electric telescopic rod is fixed inside the connecting column. Guide grooves are provided on the inner walls of both the left and right ends of the middle and lower sampling chamber columns. A movable rod threadedly connected to each other is inserted into the center of both the middle and lower sampling chamber columns. The telescopic end of the electric telescopic rod is threadedly connected to the top of the movable rod inside the middle sampling chamber column. Connecting rods are fixed to both the left and right ends of the movable rod. A partition that cooperates with the guide groove is fixed to the other end of the connecting rod. Sampling windows that cooperate with the partition are provided on both the left and right ends of the middle and lower sampling chamber columns.

[0006] Preferably, a first movable plate is slidably connected inside the first support frame, one end of the first movable plate is fixed to the drilling rig, a first cylinder is fixed to the inner wall of the first support frame, and the telescopic end of the first cylinder is fixed to the top of the first movable plate.

[0007] Preferably, a second support frame is rotatably connected to the bottom of the first support frame, a second movable plate is slidably connected inside the second support frame, a second cylinder is fixed to the inner wall of the second support frame, and the telescopic end of the second cylinder is fixed to the second movable plate.

[0008] Preferably, a third cylinder is rotatably connected between the first support frame and the second movable plate.

[0009] Preferably, the left and right inner walls of the first support frame and the second support frame are provided with moving grooves that cooperate with the first moving plate and the second moving plate.

[0010] Preferably, each of the four corners of the second support frame is fixed with a fixing seat.

[0011] Preferably, the middle sampling chamber column and the moving rod are provided with external and internal threads at the top and bottom.

[0012] Preferably, the bottom of the sampling window is a drill bit.

[0013] The beneficial effects of this utility model are:

[0014] 1. The standardized threaded interface design enables modular expansion and disassembly of the sampling column, adapting to different depth requirements. The partition of each sampling column is linked to the electric telescopic rod, ensuring that the sampling window only opens at the target depth, avoiding cross-contamination between samples from different layers.

[0015] 2. The first, second, and third cylinders of the supporting frame, together with the moving groove, can realize multi-directional adjustment of the sampling device in terms of verticality, horizontality, and angle, thereby improving the sampling accuracy. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the sampling device for the filling body in the mining area proposed in this utility model.

[0017] Figure 2 This is an exploded structural diagram of the sampling device for the backfill material in the mining area proposed in this utility model.

[0018] Figure 3 This is a schematic diagram of the sampling explosion structure of the sampling device for the mining filling body proposed in this utility model.

[0019] Figure 4 This is a schematic diagram of the sampling section structure of the sampling device for the filling body in the mining area proposed in this utility model.

[0020] Figure 5 This is a schematic diagram of the internal structure of the first support frame of the sampling device for the filling material in the mining area proposed in this utility model.

[0021] Figure 6 This is a schematic diagram of the internal structure of the second support frame of the sampling device for the filling material in the mining area proposed in this utility model.

[0022] In the diagram: 1. Drilling rig; 2. Connecting column; 3. Middle sampling chamber column; 4. Lower sampling chamber column; 5. Electric telescopic rod; 6. Guide groove; 7. Moving rod; 8. Connecting rod; 9. Partition plate; 10. Sampling window; 11. First support frame; 12. Second support frame; 13. First cylinder; 14. First moving plate; 15. Second cylinder; 16. Second moving plate; 17. Third cylinder; 18. Moving groove; 19. Fixed base. Detailed Implementation

[0023] Reference Figure 1-6 The sampling device for the filling body in the mining area includes a drilling rig 1 and a first support frame 11. A connecting column 2 is fixed to the rotating end of the drilling rig 1. A middle sampling chamber column 3 is threadedly connected to the bottom of the connecting column 2. A lower sampling chamber column 4 is threadedly connected to the bottom of the middle sampling chamber column 3. The interiors of the middle sampling chamber column 3 and the lower sampling chamber column 4 are hollow sampling chambers. An electric telescopic rod 5 is fixed inside the connecting column 2. Guide grooves 6 are opened on the inner walls of both the left and right ends of the middle sampling chamber column 3 and the lower sampling chamber column 4. A movable rod 7 that is threadedly connected to each other is inserted into the center of the interior of both the middle sampling chamber column 3 and the lower sampling chamber column 4. The telescopic end of the electric telescopic rod 5 is threadedly connected to the top of the movable rod 7 inside the middle sampling chamber column 3. A connecting rod 8 is fixed to both the left and right ends of the movable rod 7. A partition 9 that cooperates with the guide groove 6 is fixed to the other end of the connecting rod 8. Sampling windows 10 that cooperate with the partition 9 are opened on both the left and right ends of the middle sampling chamber column 3 and the lower sampling chamber column 4.

[0024] The bottom of connecting column 2 is provided with an internal thread, which matches and connects with the external thread at the top of the middle sampling column. The bottom of the middle sampling column is also connected to the lower sampling column by a thread. This multi-segment threaded connection design allows for flexible increase or decrease of the number of sampling columns according to the actual sampling depth.

[0025] The telescopic movement of the electric telescopic rod 5 drives the moving rod 7 to move up and down. The two sides of the moving rod 7 are fixed with partitions 9 by connecting rods 8. The partitions 9 cooperate with the sampling window 10 and the guide groove 6 to isolate samples at different depths. When the electric telescopic rod 5 extends, the partitions 9 are pushed towards the sampling window 10 to close the sampling cavity; when it retracts, the partitions 9 are removed, the sampling window 10 is opened, and the filling sample enters the sampling cavity through the sampling window 10.

[0026] Both the upper and lower ends of the middle sampling chamber column 3 and the moving rod 7 are provided with external and internal threads. After sampling is completed, each sampling column is rotated in the opposite direction to disassemble it segment by segment. The sampling chamber of each sampling column can be opened individually to remove the sample and mark the corresponding depth information.

[0027] A first movable plate 14 is slidably connected inside the first support frame 11. One end of the first movable plate 14 is fixed to the drilling rig 1. A first cylinder 13 is fixed to the inner wall of the first support frame 11, and the telescopic end of the first cylinder 13 is fixed to the top of the first movable plate 14. The first movable plate is driven by the first cylinder 13 to adjust the vertical position of the drilling rig 1.

[0028] A second support frame 12 is rotatably connected to the bottom of the first support frame 11. A second movable plate 16 is slidably connected inside the second support frame 12. A second cylinder 15 is fixed to the inner wall of the second support frame 12, and the telescopic end of the second cylinder 15 is fixed to the second movable plate 16. The second cylinder 15 controls the horizontal displacement of the second movable plate to achieve fine-tuning of the angle of the drilling rig 1.

[0029] A third cylinder 17 is rotatably connected between the first support frame 11 and the second moving plate 16. This further enhances the stability of the device and allows for a larger angle adjustment of the drilling rig 1.

[0030] The left and right inner walls of the first support frame 11 and the second support frame 12 are each provided with a moving groove 18 that mates with the first moving plate 14 and the second moving plate 16. This ensures that the movement trajectory of the first moving plate 14 and the second moving plate 16 is precise and controllable.

[0031] The second support frame 12 is fixed with a fixing seat 19 at each of its four corners. It can be fixed to the ground of the mining area or the equipment platform by bolts to prevent the device from shaking during the sampling process.

[0032] The bottom of the sampling window 10 is a drill bit, which can rotate quickly to cut into the filling material.

[0033] In use, according to the target sampling depth, the middle sampling column and the lower sampling column are sequentially connected to the connecting column 2 via threads. Simultaneously, the top of the moving rod 7 inside the middle sampling chamber column 3 is threaded to the telescopic end of the electric telescopic rod 5, while the moving rod 7 inside the lower sampling chamber column 4 is threaded to the moving rod 7 inside the middle sampling chamber column 3. Each sampling column is equipped with an independent moving rod 7 and a partition 9 to ensure that each sampling chamber is independent. The second support frame 12 is fixed to the designated position in the mining area via a fixing seat 19. The second cylinder 15 controls the horizontal displacement of the second moving plate, while the third cylinder 17 also extends and retracts to adjust the angle of the drill rig 1, aligning the drill bit with the sampling point. Drilling and sampling: The drill rig 1 is started, and the drill bit rotates to cut into the filling material. The electric telescopic rod 5 extends and retracts, controlling the opening and closing of the partition 9. When the sampling window 10 is open, the filling material sample enters the sampling chamber; after the partition 9 is closed, the sample is sealed in the corresponding chamber to prevent mixing of samples from different depths. Segmented disassembly and sample collection: After sampling, rotate each sampling column in the reverse direction to disassemble it segment by segment. The sampling chamber of each sampling column can be opened individually to remove the sample and mark the corresponding depth information. At the same time, the detachable design of each component facilitates cleaning.

Claims

1. A sampling device for backfill material in a stope, characterized in that: The system includes a drilling rig (1) and a first support frame (11). A connecting column (2) is fixed to the rotating end of the drilling rig (1). A middle section sampling chamber column (3) is threaded to the bottom of the connecting column (2). A lower section sampling chamber column (4) is threaded to the bottom of the middle section sampling chamber column (3). An electric telescopic rod (5) is fixed inside the connecting column (2). Guide grooves (6) are provided on the inner walls of both the left and right ends of the middle section sampling chamber column (3) and the lower section sampling chamber column (4). Each of the sample chamber columns (4) has a movable rod (7) that is threadedly connected to each other inserted in its internal center. The telescopic end of the electric telescopic rod (5) is threadedly connected to the top of the movable rod (7) inside the middle sampling chamber column (3). Both the left and right ends of the movable rod (7) are fixed with connecting rods (8). The other end of the connecting rod (8) is fixed with a partition (9) that cooperates with the guide groove (6). Both the left and right ends of the middle sampling chamber column (3) and the lower sampling chamber column (4) are provided with sampling windows (10) that cooperate with the partition (9).

2. The sampling device for the backfill body in the mining area according to claim 1, characterized in that: The first support frame (11) is slidably connected to a first movable plate (14), one end of the first movable plate (14) is fixed to the drilling rig (1), the inner wall of the first support frame (11) is fixed with a first cylinder (13), and the telescopic end of the first cylinder (13) is fixed to the top of the first movable plate (14).

3. The sampling device for the backfill body in the mining area according to claim 1, characterized in that: The bottom of the first support frame (11) is rotatably connected to the second support frame (12), the interior of the second support frame (12) is slidably connected to the second moving plate (16), the inner wall of the second support frame (12) is fixed with the second cylinder (15), and the telescopic end of the second cylinder (15) is fixed with the second moving plate (16).

4. The sampling device for the backfill body in the mining area according to claim 3, characterized in that: A third cylinder (17) is rotatably connected between the first support frame (11) and the second movable plate (16).

5. The sampling device for the backfill body in the mining area according to claim 3, characterized in that: The first support frame (11) and the second support frame (12) are provided with moving grooves (18) on the left and right inner walls to cooperate with the first moving plate (14) and the second moving plate (16).

6. The sampling device for the backfill body in the mining area according to claim 3, characterized in that: The second support frame (12) is fixed with a fixing seat (19) at each of its four corners.

7. The sampling device for the backfill body in the mining area according to claim 1, characterized in that: The middle sampling chamber column (3) and the moving rod (7) are both provided with external threads and internal threads at the top and bottom.

8. The sampling device for the backfill body in the mining area according to claim 1, characterized in that: The bottom of the sampling window (10) is a drill bit.

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