A device for treating a choke in an underground mine shaft

Abstract

This utility model discloses a device for treating blockages in underground mine chutes, including a support platform with a support plate mounted on top. A drive motor is fixedly connected to the top of the support plate. A lifting rod passes through the top of the support platform and is rotatably connected to the support plate. The output end of the drive motor meshes with the top of the lifting rod via gears. A drilling assembly is fixedly connected to the bottom of the lifting rod. An explosive charge is mounted on the upper part of the drilling assembly, and a digital electronic detonator is installed on the top of the explosive charge. A remote detonator is installed at the digital electronic detonator. A fixing assembly is installed at the lower part of the drilling assembly. The fixing and rotating parts of the drilling assembly are connected by threads. After one round of blasting is completed, a new rotating part can be easily and quickly threaded onto the fixing part to continue the next round of blasting without the need for large-scale disassembly and replacement of the entire device, reducing equipment wear and maintenance costs, improving drilling efficiency, and enhancing construction safety by using a remote detonator.

Description

Technical Field

[0001] This utility model relates to the field of mining engineering and drilling technology, and more specifically to a device for dealing with blockages in underground mine chutes. Background Technology

[0002] In underground mining engineering, ore passes, as crucial vertical ore transport channels, play a vital role in efficiently transporting ore from the mining area to the bottom yard or other transfer points. Their smooth operation directly impacts the continuity and stability of mine production. However, in actual production, ore passes often become blocked due to various factors. Firstly, ore may become muddy during transport, increasing its viscosity and making it prone to accumulating and adhering within the pass, gradually leading to blockages. Secondly, debris mixed in with the ore, such as large rocks or wood, can also get stuck in narrow sections of the pass, hindering the normal flow of ore. Furthermore, due to geological conditions, the surrounding rock mass may become loose or fractured, and falling rock fragments entering the pass can also cause blockages.

[0003] Such ore pass blockages severely restrict the efficiency of mine production and transportation. Once a blockage occurs, ore cannot be transported in a timely manner, leading to the cessation of mining operations, affecting the normal operation of subsequent production processes, and consequently reducing the overall production capacity of the mine. At the same time, ore pass blockages also pose certain safety hazards. The accumulation of ore in a blocked ore pass increases the load on the pass, potentially causing the pass walls to collapse due to excessive pressure, posing a serious threat to the lives of underground workers. Furthermore, the unstable state of the blockage can also cause accidental slippage, resulting in equipment damage and personnel injuries.

[0004] Traditional methods for clearing blockages in manholes are inadequate in addressing these problems. For example, manual prying requires workers to enter the vicinity of the manhole directly. In cases of deep, hard blockages, the limited working space and high operational difficulty not only result in low efficiency but also expose workers to serious safety risks such as falling rocks and collapses. Utility Model Content

[0005] This invention provides a device for treating blockages in underground mine ore passes. By combining drilling with controlled blasting technology, it achieves efficient and safe removal of blockages in the ore passes, restoring the normal transportation function of the ore passes and solving the problems existing in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: A device for handling blockages in underground mine chutes includes a support platform, a support plate mounted on top of the support platform, a drive motor fixedly connected to the top of the support plate, a lifting rod extending through the top of the support platform and rotatably connected to the support plate, the output end of the drive motor meshing with the top of the lifting rod via gears, a drilling assembly fixedly connected to the bottom of the lifting rod, an explosive charge mounted on the upper part of the drilling assembly, a digital electronic detonator mounted on the top of the explosive charge, and a fixing assembly mounted on the lower part of the drilling assembly.

[0007] The drilling assembly includes a fixed part and a rotating part arranged vertically. The fixed part is fixed to the bottom of the lifting rod, and the rotating part is threadedly connected to the bottom of the fixed part.

[0008] The fixing part has a placement cavity, the rotating part has an installation cavity, the top of the rotating part is fixed with an installation plate, the explosive charge is installed on the top of the installation plate and located in the placement cavity, and the fixing component is located in the installation cavity.

[0009] The fixing component includes cylinders. There are two cylinders, which are symmetrically arranged at the upper and lower ends of the mounting cavity. A push rod is fixed to the output end of each cylinder. An insert rod is arranged between the two cylinders. A connecting rod is rotatably connected to one end of the insert rod. The connecting rod consists of two rods, one end of which is staggered and rotatably connected to one end of the insert rod. The other ends of the two connecting rods are respectively rotatably connected to the ends of the two push rods away from the cylinders. The other end of the insert rod extends out of the mounting cavity.

[0010] Furthermore, a remote detonator is installed at the digital electronic detonator of the explosive charge.

[0011] Furthermore, the drilling assembly is provided with spiral blades on its outer side.

[0012] Furthermore, the insertion rods are evenly distributed in a ring shape, consisting of four rods.

[0013] Furthermore, a spike is provided at one end of the insertion rod extending out of the mounting cavity.

[0014] Furthermore, the supporting platform is a grid frame formed by welding steel bars.

[0015] This utility model has the following beneficial effects: (1) The fixed part and the rotating part of the drilling component of this utility model adopt a threaded connection. After one round of blasting is completed, the new rotating part can be easily and quickly threaded to the fixed part to continue the next round of blasting. There is no need to disassemble and replace the entire device on a large scale, which reduces equipment wear and maintenance costs. The spiral blades set on the outside of the drilling component can better break the blockage during the drilling process, speed up the drilling speed, and improve the drilling efficiency.

[0016] (2) This utility model detonates the explosive charge through a remote detonator. Operators do not need to approach the blasting point and can complete the ignition operation from a safe distance, which effectively avoids the injury caused to personnel by flying rocks and shock waves generated by the blasting and greatly improves the safety of the operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the drilling component of this utility model; Figure 3 This is a schematic diagram of the fixing component structure of this utility model; In the diagram, 1-bearing platform, 2-support plate, 3-drive motor, 4-lifting rod, 5-gear, 6-explosive pack, 7-digital electronic detonator, 8-spiral blade, 9-fixed part, 10-rotating part, 11-placement cavity, 12-installation cavity, 13-installation plate, 14-cylinder, 15-push rod, 16-insertion rod, 17-connecting rod, 18-remote detonator, 19-spiked part. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0019] Example 1

[0020] A device for treating blockages in underground mine chutes, as shown in the attached... Figure 1-3 As shown, the system includes a support platform 1, which is a grid frame formed by welding steel bars. This structure ensures the strength of the support platform 1 while reducing its weight, making it easy to move and install in underground mining environments. A support plate 2 is installed on the top of the support platform 1, and a drive motor 3 is fixedly connected to the top of the support plate 2. A lifting rod 4 passes through the top of the support platform 1 and is rotatably connected to the support plate 2. The output end of the drive motor 3 meshes with the top of the lifting rod 4 through a gear 5. The drive motor 3 drives the gear 5 to rotate, thereby driving the lifting rod 4 to rotate and rise. A drilling assembly is fixedly connected to the bottom of the lifting rod 4. An explosive charge 6 is installed on the upper part of the drilling assembly, and a digital electronic detonator 7 is set on the top of the explosive charge 6. A fixing assembly is installed on the lower part of the drilling assembly.

[0021] The drilling assembly is provided with a spiral blade 8 on its outer side. During drilling, the spiral blade 8 can better break up blockages and improve drilling efficiency. The drilling assembly includes a fixed part 9 and a rotating part 10 arranged vertically. The fixed part 9 is fixed to the bottom of the lifting rod 4, and the rotating part 10 is threaded to the bottom of the fixed part 9. The fixed part 9 has a placement cavity 11, and the rotating part 10 has an installation cavity 12. An installation plate 13 is fixed to the top of the rotating part 10. The explosive charge 6 is installed on the top of the installation plate 13 and located in the placement cavity 11. A remote detonator 18 is installed at the digital electronic detonator 7 of the explosive charge 6. The remote detonator 18 can ignite the explosive charge 6 from a safe distance to avoid injury to the operator from the explosion. The fixed assembly is located in the installation cavity 12.

[0022] The fixing assembly includes two cylinders 14, symmetrically arranged at the upper and lower ends of the mounting cavity 12. A push rod 15 is fixed to the output end of each cylinder 14. An insert rod 16 is positioned between the two cylinders 14. One end of the insert rod 16 is rotatably connected to a connecting rod 17. Two connecting rods 17 are configured, with one end offset and rotatably connected to one end of the insert rod 16. The other ends of the two connecting rods 17 are respectively rotatably connected to the ends of the two push rods 15 away from the cylinders 14. The other end of the insert rod 16 extends out of the mounting cavity 12. When the cylinder 14 pushes the push rod 15, the connecting rod 16... 7 drives the insertion rod 16 to extend outward, so that it is inserted into the mineral, thereby fixing the rotating part 10 in the mineral. When the component has drilled to a suitable distance, the motor is reversed. Since the rotating part 10 is threadedly connected to the fixed part 9 and the rotating part 10 is fixed in the mineral, the fixed part 9 is separated from the rotating part 10. During this process, the lifting rod 4 is raised and reset. After the reset is completed, the remote detonator 18 is controlled to detonate the explosive charge 6 for detonation. After the detonation is completed, the new rotating part 10 is threadedly connected to the fixed part 9 to continue the next round of detonation. This process is repeated until the blockage is cleared.

[0023] Work process First, the lifting rod 4 is activated to lower the component to contact the blocked mineral surface. At this time, the drive motor 3 is activated to raise the lifting rod 4 so that the drilling component can drill spirally. When the drilling component has drilled to the appropriate position, the lifting rod 4 and the drive motor 3 are stopped. At this time, the cylinder 14 is activated. When the cylinder 14 pushes the push rod 15, it drives the insertion rod 16 to extend outward through the connecting rod 17, so that it is inserted into the mineral, thereby fixing the rotating part 10 in the mineral. After fixing, the motor is activated and reversed to separate the fixed part 9 from the rotating part 10. During this process, the lifting rod 4 is activated simultaneously to completely separate the fixed part 9 from the rotating part 10 and lift it upward to reset. The explosive charge 6 is fully exposed after the fixed part 9 is separated from the rotating part 10. The explosive charge 6 is detonated by the remote detonator 18 to detonate. It should be noted that after the blasting is completed, the blasting surface is cleaned appropriately to remove the blasted ore or other foreign objects to facilitate the next blasting. After cleaning, the new rotating part 10 is threadedly connected to one end of the fixed part 9 for the next round of blasting until the blockage surface of the ore pass is cleared.

[0024] Example 2

[0025] As a further improvement to the above embodiments, the following technical solutions are provided: Figure 3 As shown, in order to enable the fixing component to better achieve the fixing and locking function, the difference from the above embodiment is that the insertion rod 16 is evenly distributed in a ring. When fixing, the four insertion rods 16 extend at the same time, which can firmly fix the rotating part 10 in the mineral.

[0026] Example 3

[0027] As a further improvement to the above embodiments, the following technical solutions are provided: Figure 3 As shown, in order to better insert the insertion rod 16 into the mineral for fixation, a spike 19 is provided at one end of the insertion rod 16 extending out of the mounting cavity 12.

Claims

1. A device for treating blockages in underground mine chutes, characterized in that, The system includes a support platform (1), a support plate (2) installed on the top of the support platform (1), a drive motor (3) fixedly connected to the top of the support plate (2), a lifting rod (4) passing through the top of the support platform (1) and rotatably connected to the support plate (2), the output end of the drive motor (3) meshing with the top of the lifting rod (4) through a gear (5), a drilling assembly fixedly connected to the bottom of the lifting rod (4), an explosive charge (6) installed on the upper part of the drilling assembly, a digital electronic detonator (7) set on the top of the explosive charge (6), and a fixing assembly installed on the lower part of the drilling assembly.

2. The apparatus for treating blockages in underground mine chutes according to claim 1, characterized in that, The drilling assembly is provided with a spiral blade (8) on the outside. The drilling assembly includes a fixed part (9) and a rotating part (10) arranged at the top and bottom. The fixed part (9) is fixed to the bottom of the lifting rod (4), and the rotating part (10) is threaded to the bottom of the fixed part (9).

3. The apparatus for treating blockages in underground mine chutes according to claim 2, characterized in that, The fixing part (9) has a placement cavity (11), the rotating part (10) has an installation cavity (12), the top of the rotating part (10) is fixed with an installation plate (13), the explosive charge (6) is installed on the top of the installation plate (13) and located in the placement cavity (11), and the fixing component is located in the installation cavity (12).

4. The apparatus for treating blockages in underground mine chutes according to claim 1, characterized in that, The fixing component includes cylinders (14), and there are two cylinders (14) symmetrically arranged at the upper and lower ends of the mounting cavity (12). A push rod (15) is fixed at the output end of the cylinder (14). An insert rod (16) is arranged between the two cylinders (14). One end of the insert rod (16) is rotatably connected to a connecting rod (17). The connecting rod (17) is configured as two rods, one end of which is staggered and rotatably connected to one end of the insert rod (16). The other ends of the two connecting rods (17) are respectively rotatably connected to the ends of the two push rods (15) away from the cylinders (14). The other end of the insert rod (16) extends out of the mounting cavity (12).

5. The apparatus for treating blockages in underground mine chutes according to claim 1, characterized in that, The explosive charge (6) is equipped with a remote detonator (18) at the digital electronic detonator (7).

6. The apparatus for treating blockages in underground mine chutes according to claim 4, characterized in that, The insertion rod (16) has four rods evenly distributed in a ring.

7. The apparatus for treating blockages in underground mine chutes according to claim 4, characterized in that, The insertion rod (16) has a spike (19) at one end extending out of the mounting cavity (12).

8. The apparatus for treating blockages in underground mine chutes according to claim 1, characterized in that, The bearing platform (1) is a grid frame formed by welding steel bars.

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