Coal seam water injection equipment for coal face
By designing a coal seam water injection equipment for coal mining working surfaces including water injection pipe sleeves, hard pipes, lifting components, etc., the problem of existing equipment lacking effective sealing structure and poor fixing performance is solved, and the stability of the equipment and the convenience of operation are achieved.
Patent Information
- Application Number
- CN202421174928.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-05-28
AI Technical Summary
The existing coal mining working surface coal seam water injection equipment lacks an effective sealing structure, which leads to prone to blockage of water outlets when inserted into the drilling hole, and has poor fixing performance and is prone to fall off.
A coal seam water injection equipment for coal mining working surfaces including water injection pipe sleeves, hard pipes, lifting components, water guide covers, movable plates, sealing seats, water guide holes and piston sleeves is designed. The sealing structure is formed through the cooperation of these components, and the height of the sealing structure is adjusted through the lifting components to ensure the stability of the equipment.
It effectively avoids the problem of blockage of the water outlet when inserting the drilling hole, and through the cooperation of the lifting and lowering components and the fixing components, the stability of the water injection equipment is ensured, the problem of shedding is avoided, and the operation is convenient.
Smart Images
Figure CN222615378U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coal mines, in particular to coal seam water injection equipment for a coal mining working face. Background Art
[0002] Coal seam water injection refers to the use of drilling holes to inject pressurized water into the coal seam before mining to pre-wet the coal body, which can reduce the amount of coal dust generated. Injecting water evenly into the coal body with a moisture content of more than 4% can prevent outbursts. Water changes the mechanical properties of coal, making the stress distribution uniform, the elastic energy release rate slower, the power lowered, and the methane emission rate lowered by 90% compared to the initial release.
[0003] At present, during coal mining operations, water injection equipment is inserted into pre-drilled holes inside the coal seam, and the following technical problems exist: on the one hand, since the water injection equipment is not provided with a good sealing structure, some coal dust will fall on the water injection equipment when inserting the drill hole, causing the water outlet to be blocked; on the other hand, the water injection equipment has poor fixing performance when inserted into the drill hole, and the stability of the water injection equipment cannot be effectively guaranteed, and it is easy to fall off. Therefore, it is urgent to design coal seam water injection equipment for the coal mining working face to solve the above problems. Utility Model Content
[0004] The purpose of the utility model is to provide coal seam water injection equipment for coal mining working face to solve the problems raised in the above background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] The coal seam water injection equipment of the coal mining working face comprises a water storage tank, a water pump is fixedly installed on one side of the top of the water storage tank, a water suction pipe is fixedly installed on the bottom of the water pump, a multi-way pipe is fixedly installed on the top of the water pump, the ends of the multi-way pipe are threadedly connected with a hose, and one end of the hose is threadedly connected with a hard pipe, the outer wall of the hard pipe is sleeved with a water injection pipe sleeve, the top of the hard pipe is threadedly connected with a water guide cover, and a movable disk is fixedly installed on the top of the water guide cover, the outer wall of the movable disk is fixedly provided with a first piston sleeve, the outer wall of the first piston sleeve is matched with the inner wall of the water injection pipe sleeve, The top of the movable disk is provided with water guide holes which are equidistantly distributed in a ring shape, and the bottom of the water guide holes is communicated with the interior of the water guide cover. A water outlet is provided at the middle position of the top of the water injection pipe sleeve, and a blocking seat which is inserted into the water outlet is fixed at the middle position of the top of the movable disk, a second piston sleeve is fixedly provided on the outer wall of the blocking seat, and the outer wall of the second piston sleeve is matched with the inner wall of the water outlet. A lifting component is provided between the bottom of the outer wall of the hard pipe and the inner wall of the water injection pipe sleeve, and a fixing component is provided at the outer wall of the hard pipe near the middle position and the circumference of the water injection pipe sleeve.
[0007] Furthermore, the lifting assembly includes a lifting plate fixedly mounted on the outer wall of the hard pipe near the bottom, and a plurality of electric push rods are fixedly mounted on the inner wall of the water injection pipe sleeve, and the piston end of the electric push rod is fixedly connected to the top of the lifting plate.
[0008] Furthermore, the fixing component includes inlets and outlets equidistantly opened on the circumference of the water injection pipe sleeve, and the inner walls of the inlets and outlets are plugged with positioning frames, and the outer wall of one side of the positioning frame is provided with anti-slip grooves distributed at equal distances, and the outer wall of the hard pipe near the middle position is fixedly installed with U-shaped seats distributed at equal distances, and the inner wall of the U-shaped seat is rotatably connected to the inner wall of the positioning frame by an inclined push-pull rod through a pin shaft.
[0009] Furthermore, a guide sleeve is fixed to the top end and the bottom end of the positioning frame, and a plurality of guide rods passing through the guide sleeves are fixed to the inner wall of the water injection pipe sleeve, and the cross section of the guide rod is designed to be T-shaped.
[0010] Furthermore, an anti-leakage disk is fixedly installed at the bottom of the water injection pipe sleeve, and the anti-leakage disk sleeve is arranged on the outside of the hard pipe.
[0011] Furthermore, an equipment cavity is opened in the middle position of the top of the water tank, and a control box is fixedly installed on the inner wall of the equipment cavity. A control device and a battery are fixedly installed inside the control box. The control device, battery, water pump and electric push rod are electrically connected.
[0012] Furthermore, a water injection pipe is fixed on one side of the top of the water tank, and a sealing cover is provided on the water injection pipe. Universal wheels are fixedly installed at the four corners of the bottom of the water tank, and a push handle is fixedly installed at one end of the water tank.
[0013] Furthermore, a plurality of clamps for clamping water injection pipe sleeves are fixedly installed on the top of the water storage tank, and a transparent liquid level tube is fixedly installed on the bottom at the middle position of one end of the water storage tank.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] In the utility model, the water injection pipe sleeve, the hard pipe, the lifting assembly, the water guide cover, the movable plate, the blocking seat, the water guide hole, the first piston sleeve, the water outlet and the second piston sleeve are arranged so that the entire coal seam water injection equipment of the coal mining working face is provided with a better blocking structure, so that when the water injection equipment is inserted into the drill hole, the problem of the water outlet being blocked by some coal dust is avoided. When it is used, the height of the entire blocking structure is adjusted by the lifting assembly so that the hard pipe, the water guide cover, the water guide hole and the water outlet are connected to perform water injection operation, which is convenient to operate.
[0016] In the utility model, the positioning structure of the water injection equipment is composed of the cooperation of the set hard pipe, the lifting component and the fixing component. When the height of the blocking structure is adjusted by the lifting component, the positioning structure can be driven to operate synchronously, so that the positioning frame can fully fit inside the coal mine borehole, thereby ensuring the fixing performance of the entire water injection equipment, effectively ensuring the stability of the water injection equipment, and avoiding the problem of falling off. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the overall structure of the coal seam water injection equipment for the coal mining face.
[0018] Figure 2 This is a schematic diagram of the pumping pipe and multi-way pipe structure of the coal seam water injection equipment in the coal mining face.
[0019] Figure 3 This is a cross-sectional view of the water injection pipe sleeve of the coal seam water injection equipment at the coal mining face.
[0020] Figure 4 This is a schematic diagram of the guide rod and inlet and outlet structure of the coal seam water injection equipment in the coal mining working face.
[0021] Figure 5 This is a schematic diagram of the U-shaped seat and push-pull rod structure of the coal seam water injection equipment in the coal mining working face.
[0022] Figure 6 Cross-sectional view of the movable plate and water guide cover of the coal seam water injection equipment for the coal mining face.
[0023] In the figure: 1. water storage tank; 2. control box; 3. water pump; 4. clamp; 5. hose; 6. water injection pipe sleeve; 7. anti-leakage disk; 8. water injection pipe; 9. push handle; 10. transparent liquid level tube; 11. multi-way tube; 12. water suction pipe; 13. fixing assembly; 1301. positioning frame; 1302. guide rod; 1303. guide sleeve; 1304. anti-slip groove; 1305. inlet and outlet; 1306. U-shaped seat; 1307. push-pull rod; 14. hard pipe; 15. lifting plate; 16. electric push rod; 17. water guide cover; 18. movable plate; 19. blocking seat; 20. water guide hole; 21. first piston sleeve; 22. water outlet; 23. second piston sleeve. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] Example 1
[0026] See also Figure 1-Figure 6In the embodiment of the utility model, the coal seam water injection equipment of the coal mining working face includes a water storage tank 1, a water pump 3 is fixedly installed on one side of the top of the water storage tank 1, and a water pump 12 is fixedly installed on the bottom of the water pump 3, a multi-way pipe 11 is fixedly installed on the top of the water pump 3, the ends of the multi-way pipe 11 are threadedly connected with a hose 5, and one end of the hose 5 is threadedly connected with a hard pipe 14, the outer wall of the hard pipe 14 is sleeved with a water injection pipe sleeve 6, the top of the hard pipe 14 is threadedly connected with a water guide cover 17, and a movable disk 18 is fixedly installed on the top of the water guide cover 17, the outer wall of the movable disk 18 is fixedly provided with a first piston sleeve 21, the outer wall of the first piston sleeve 21 is adapted to the inner wall of the water injection pipe sleeve 6, the top of the movable disk 18 is provided with water guide holes 20 which are equidistantly distributed in an annular shape, and the guide holes 20 are arranged on the top of the movable disk 18. The bottom of the water hole 20 is communicated with the interior of the water guide cover 17, a water outlet 22 is provided at the top middle position of the water injection pipe sleeve 6, and a blocking seat 19 inserted into the water outlet 22 is fixed at the top middle position of the movable disk 18, and a second piston sleeve 23 is fixedly provided on the outer wall of the blocking seat 19, and the outer wall of the second piston sleeve 23 is adapted to the inner wall of the water outlet 22, and a lifting assembly is provided between the bottom of the outer wall of the hard tube 14 and the inner wall of the water injection pipe sleeve 6, and the lifting assembly includes a lifting plate 15 fixedly installed on the outer wall of the hard tube 14 near the bottom, and a plurality of electric push rods 16 are fixedly installed on the inner wall of the water injection pipe sleeve 6, and the piston end of the electric push rod 16 is fixedly connected to the top of the lifting plate 15, and a ... The fixing component 13 includes an inlet and outlet 1305 which are equidistantly arranged on the circumference of the water injection pipe sleeve 6, and the inner walls of the inlet and outlet 1305 are plugged with a positioning frame 1301, and the outer wall of one side of the positioning frame 1301 is provided with an anti-slip groove 1304 which is equidistantly distributed, and the outer wall of the hard pipe 14 near the middle position is fixedly installed with an equidistantly distributed U-shaped seat 1306, and the inner wall of the U-shaped seat 1306 is rotatably connected to the inner wall of the positioning frame 1301 by a pin shaft, and an inclined push-pull rod 1307 is rotatably connected, and the top end and the bottom end of the positioning frame 1301 are fixed with a guide sleeve 1303, and the inner wall of the water injection pipe sleeve 6 is fixed with a plurality of guide rods 1302 which pass through the guide sleeve 1303, and the cross section of the guide rod 1302 is designed to be T The plugging structure is composed of the water injection pipe sleeve 6, the hard pipe 14, the lifting component, the water guide cover 17, the movable plate 18, the blocking seat 19, the water guide hole 20, the first piston sleeve 21, the water outlet 22 and the second piston sleeve 23. When the water injection equipment is inserted into the borehole, the problem of the water outlet 22 being blocked by some coal dust can be avoided. The height of the whole blocking structure can be adjusted under the regulating action of the lifting component so that the hard pipe 14, the water guide cover 17, the water guide hole 20 and the water outlet 22 are connected to carry out the water injection operation. The operation is convenient, and at the same time, the fixing component 13 is driven to run, so that the positioning frame 1301 is fully fitted inside the coal mine borehole, ensuring the fixing performance of the whole water injection equipment, effectively ensuring the stability of the water injection equipment, and avoiding the problem of falling off.
[0027] Specifically, a leak-proof disk 7 is fixedly installed at the bottom of the water injection pipe sleeve 6, and the leak-proof disk 7 is sleeved on the outside of the hard pipe 14. When the water injection pipe sleeve 6 is inserted into the preset borehole, the leak-proof disk 7 is fully fitted to the bottom of the borehole, preventing the problem of water and coal leakage to a certain extent.
[0028] Specifically, an equipment cavity is opened in the middle position of the top of the water tank 1, and a control box 2 is fixedly installed on the inner wall of the equipment cavity, a control device and a battery are fixedly installed inside the control box 2, the control device, the battery, the water pump 3 and the electric push rod 16 are electrically connected, a water injection pipe 8 is fixed on one side of the top of the water tank 1, and a sealing cover is provided on the water injection pipe 8, universal wheels are fixedly installed at the four corners of the bottom of the water tank 1, and a push handle 9 is fixedly installed at one end of the water tank 1, and the push handle 9 and the universal wheel facilitate the movement of the entire water injection equipment.
[0029] Example 2
[0030] See also Figure 1 , which is different from Example 1, a plurality of clamps 4 for inserting water injection pipe sleeves 6 are fixedly installed on the top of the water storage tank 1, and a transparent liquid level tube 10 is fixedly installed on the bottom of the middle position of one end of the water storage tank 1. The clamp 4 facilitates the placement of the water injection pipe sleeve 6 in the water storage tank 1, which is convenient for synchronous carrying, and the liquid level in the water storage tank 1 is observed through the transparent liquid level tube 10, which facilitates timely water addition.
[0031] The working principle of the utility model is as follows: when in use, the user inserts a plurality of water injection sleeves 6 into the preset drilled holes respectively, and uses the water injection sleeves 6, the hard pipe 14, the lifting assembly, the water guide cover 17, the movable plate 18, the blocking seat 19, the water guide hole 20, the first piston sleeve 21, the water outlet 22 and the second piston sleeve 23 to form a blocking structure, and adjusts the height of the lifting plate 15 through the electric push rod 16 in the lifting assembly to adjust the height of the entire blocking structure, so that the hard pipe 14, the water guide cover 17, the water guide hole 20 and the water outlet 22 are connected, at this time, the water in the water storage tank 1 is extracted by using the water pump 3 and the suction pipe 12, and the water injection operation is carried out by using the multi-way pipe 11, the hose 5, the hard pipe 14, the water guide cover 17, the water guide hole 20 and the water outlet 22. In addition, when the height of the sealing structure is adjusted by the lifting component, the fixing component 13 is also driven to move synchronously, so that the positioning frame 1301 is pushed to move in the inlet and outlet 1305 by the push-pull rod 1307, so that the positioning frame 1301 is fully fitted inside the coal mine borehole, thereby ensuring the fixing performance of the entire water injection equipment.
[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention.
Claims
1. A coal seam water injection device for a coal mining working face, comprising a water storage tank (1), characterized in that: A water pump (3) is fixedly mounted on one side of the top of the water storage tank (1), and a water suction pipe (12) is fixedly mounted on the bottom of the water pump (3). A multi-way pipe (11) is fixedly mounted on the top of the water pump (3). The ends of the multi-way pipe (11) are threadedly connected to a hose (5), and one end of the hose (5) is threadedly connected to a hard pipe (14). The outer wall of the hard pipe (14) is sleeved with a water injection pipe sleeve (6). The top of the hard pipe (14) is threadedly connected to a water guide cover (17), and a movable disk (18) is fixedly mounted on the top of the water guide cover (17). A first piston sleeve (21) is fixedly mounted on the outer wall of the movable disk (18). The outer wall of the first piston sleeve (21) is matched with the inner wall of the water injection pipe sleeve (6). The movable disk (18) ) is provided with water guide holes (20) which are equidistantly distributed in an annular shape, and the bottom of the water guide holes (20) is communicated with the interior of the water guide cover (17); a water outlet (22) is provided at the middle position of the top of the water injection pipe sleeve (6); a blocking seat (19) which is inserted into the water outlet (22) is fixed at the middle position of the top of the movable plate (18); a second piston sleeve (23) is fixedly provided on the outer wall of the blocking seat (19); the outer wall of the second piston sleeve (23) is matched with the inner wall of the water outlet (22); a lifting component is provided between the bottom of the outer wall of the hard pipe (14) and the inner wall of the water injection pipe sleeve (6); and a fixing component (13) is provided at the outer wall of the hard pipe (14) near the middle position and the circumference of the water injection pipe sleeve (6).
2. The coal seam water injection equipment for coal mining working face according to claim 1 is characterized in that: The lifting assembly comprises a lifting plate (15) fixedly mounted on the outer wall of the bottom of the hard pipe (14), and a plurality of electric push rods (16) are fixedly mounted on the inner wall of the water injection pipe sleeve (6), and the piston ends of the electric push rods (16) are fixedly connected to the top of the lifting plate (15).
3. The coal seam water injection equipment for coal mining working face according to claim 2 is characterized in that: The fixing assembly (13) comprises an inlet and an outlet (1305) which are equidistantly arranged on the circumference of the water injection pipe sleeve (6), and the inner walls of the inlet and the outlet (1305) are both plugged with a positioning frame (1301), and an outer wall on one side of the positioning frame (1301) is provided with anti-slip grooves (1304) which are equidistantly arranged, and an outer wall of the hard pipe (14) near the middle position is fixedly installed with a U-shaped seat (1306) which is equidistantly arranged, and an inclined push-pull rod (1307) is rotatably connected between the inner wall of the U-shaped seat (1306) and the inner wall of the positioning frame (1301) via a pin shaft.
4. The coal seam water injection equipment for coal mining working face according to claim 3 is characterized in that: A guide sleeve (1303) is fixed to the top end and the bottom end of the positioning frame (1301), and a plurality of guide rods (1302) passing through the guide sleeve (1303) are fixed to the inner wall of the water injection pipe sleeve (6), and the cross section of the guide rod (1302) is designed to be T-shaped.
5. The coal seam water injection equipment for coal mining working face according to claim 4 is characterized in that: An anti-leakage disk (7) is fixedly mounted on the bottom of the water injection pipe sleeve (6), and the anti-leakage disk (7) is sleeved on the outside of the hard pipe (14).
6. The coal seam water injection equipment for coal mining working face according to claim 5, characterized in that: An equipment cavity is provided in the middle of the top of the water storage tank (1), and a control box (2) is fixedly installed on the inner wall of the equipment cavity. A control device and a battery are fixedly installed inside the control box (2), and the control device, the battery, the water pump (3) and the electric push rod (16) are electrically connected.
7. The coal seam water injection equipment for coal mining working face according to claim 1, characterized in that: A water injection pipe (8) is fixed on one side of the top of the water storage tank (1), and a sealing cover is provided on the water injection pipe (8); universal wheels are fixedly installed at the four corners of the bottom of the water storage tank (1), and a push handle (9) is fixedly installed at one end of the water storage tank (1).
8. The coal seam water injection equipment for coal mining working face according to claim 1, characterized in that: A plurality of clamps (4) for clamping water injection pipe sleeves (6) are fixedly mounted on the top of the water storage tank (1), and a transparent liquid level tube (10) is fixedly mounted on the bottom at a middle position of one end of the water storage tank (1).