Coal mine underground gas extraction area isolation device
By using aluminum alloy partitions and a motor-driven screw lifting system, an adjustable double-layer isolation wall is formed, which solves the problems of cumbersome construction and gas leakage of traditional concrete isolation walls, and achieves efficient gas extraction and improved safety.
Patent Information
- Application Number
- CN202520212918.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-02-11
AI Technical Summary
In existing technologies, the construction of traditional concrete isolation walls is cumbersome and cannot be flexibly adjusted during underground gas extraction in coal mines, resulting in poor adaptability and a high risk of gas leakage.
The first and second partitions are made of aluminum alloy and form a double-layer isolation wall through support rods. Combined with a motor-driven screw lifting system and sealing strips, it can be quickly installed and adjusted, enhances the sealing performance, and is equipped with an explosion-proof mesh to improve strength.
It improves the applicability and safety of gas drainage areas, reduces the labor intensity of workers, enhances the gas drainage effect and the durability of the equipment, and prevents gas leakage.
Smart Images
Figure CN223689774U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to gas extraction technical field especially relates to a coal mine underground gas extraction area isolation device. BACKGROUND
[0002] In the coal mine underground operation, gas extraction is the important link of guaranteeing safety production, because the mine environment is complex, gas extraction often faces the problems such as low extraction efficiency, gas diffusion, therefore, need a kind of efficient gas extraction area isolation device, avoid gas leakage, improve gas extraction effect.
[0003] In the gas extraction process, the traditional regional isolation mode is to pour concrete isolation wall in extraction area and non-extraction area, however, the process of isolating extraction area by pouring concrete is cumbersome, time-consuming and laborious, and the position cannot be easily adjusted or changed after forming, the adaptability to roadway change and equipment expansion is poor, thereby leading to poor use effect, therefore, we propose the utility model. UTILITY MODEL CONTENT
[0004] The utility model aims at solving the shortcomings in the prior art and provides a coal mine underground gas extraction area isolation device.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0006] A coal mine underground gas extraction area isolation device, comprising two fixed frames fixed in the roadway, the two fixed frames are provided with isolation structures, the inside of the roadway is divided into extraction area and non-extraction area, the two fixed frames are located between the extraction area and the non-extraction area, the isolation structure comprises a plurality of first baffles arranged between the two fixed frames, a second baffle is arranged on one side of each of the plurality of first baffles, the plurality of first baffles and the second baffles are arranged in an up-down manner, the top surface of the first baffle and the second baffle located at the lower side is fixed with a protruding part, the bottom surface of the first baffle and the second baffle located at the upper side is provided with a sliding slot, and the protruding part and the sliding slot are slidably arranged.
[0007] As a further scheme of the utility model, a plurality of fixing grooves are formed on the side of the first baffle and the second baffle close to each other, a plurality of supporting rods are arranged between the first baffle and the second baffle, the two ends of the plurality of supporting rods are fixed in the corresponding fixing grooves, a buffer pad is fixed to the two ends of the plurality of supporting rods, and the first baffle and the second baffle are embeddedly fixed to the inner wall of the roadway.
[0008] As a further scheme of the utility model, the fixed frame on the right side is rotatably provided with a screw rod, the outer circumferential surface of the screw rod is threadedly connected with a movable block, the movable block is fixed with a hook plate on one side, the first baffle is fixed with a fixed sleeve on one side, the hook plate and the fixed sleeve are slidably arranged inside, the fixed frame on the right side is fixed with a motor, and the output end of the motor is fixed with the top end of the screw rod.
[0009] As a further scheme of the utility model, the second baffle is fixed with a sealing strip on one side, the sealing strip is of a mouth shape, and the left fixed frame is located inside the sealing strip.
[0010] As a further scheme of the utility model, the second baffle is fixed with a discharge pipe and an input pipe on one side, and the discharge pipe and the input pipe are both arranged to penetrate through the second baffle and the first baffle.
[0011] As a further scheme of the utility model, the first baffle and the second baffle are both fixed with an anti-explosion net inside.
[0012] Compared with the prior art, the utility model has the beneficial effects that:
[0013] The isolation device is characterized in that the first baffle and the second baffle are sequentially and fixedly arranged on the fixed frame through bolts to form a double-layer wall body, the double-layer structure formed by the first baffle and the second baffle is fixed through the supporting rod to form a stable frame, can better bear the gas pressure, airflow impact and mechanical vibration in the mine, the first baffle and the second baffle are spliced into an isolation wall body, the position of the isolation wall body can be adjusted or changed by the workers, the applicability of the device in the complex roadway is improved, and the use effect of the device is improved. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 A planar structure schematic view of the coal mine underground gas extraction area isolation device is provided in the utility model;
[0015] Figure 2 A three-dimensional structure schematic view of the coal mine underground gas extraction area isolation device is provided in the utility model;
[0016] Figure 3 A split structure schematic view of the fixed frame of the coal mine underground gas extraction area isolation device is provided in the utility model;
[0017] Figure 4 A split structure schematic view of the second baffle of the coal mine underground gas extraction area isolation device is provided in the utility model;
[0018] Figure 5 A split structure schematic view of theFigure 4 Enlarged structure schematic view at middle A.
[0019] In the figure: 1, roadway; 2, fixed frame; 201, first partition; 202, second partition; 203, protruding part; 204, sliding-in groove; 205, fixed groove; 206, support rod; 3, extraction area; 301, screw rod; 302, movable block; 303, hook plate; 304, fixed sleeve; 4, non-extraction area; 401, sealing strip; 5, exhaust pipe; 501, input pipe; 6, explosion-proof net. DETAILED DESCRIPTION
[0020] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.
[0021] In the description of the utility model, it should be pointed out that the orientation or position relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like is the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0022] In the description of the utility model, it should be pointed out that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0023] Reference Figures 1-5The utility model provides a kind of coal mine underground gas extraction area isolation device, including two fixed frames 2 fixed in roadway 1, isolation structure is provided between the two fixed frames 2, the inside of roadway 1 is divided into extraction area 3 and non-extraction area 4, two fixed frames 2 are located between extraction area 3 and non-extraction area 4, isolation structure includes a plurality of first baffle 201 being arranged in two fixed frames 2, the side of a plurality of first baffle 201 is provided with second baffle 202, a plurality of first baffle 201 and second baffle 202 are arranged in upper and lower, the top surface of first baffle 201 and second baffle 202 located below is all fixed with protruding portion 203, the bottom surface of first baffle 201 and second baffle 202 located above is all set with sliding slot 204, protruding portion 203 and the inside sliding of sliding slot 204 are arranged, fixed frame 2 is concrete pouring, and time is short and cost is low by only pouring frame body, fixed frame 2 provides limit support for first baffle 201 and second baffle 202, first baffle 201 and second baffle 202 are all aluminium alloy material, and corrosion resistance is better, can adapt to the humid environment of mine, and strength is moderate, enough to meet the isolation demand.
[0024] In the embodiment, a plurality of fixed slots 205 are formed on the side of the first baffle 201 and the second baffle 202 close to each other, a plurality of support rods 206 are arranged between the first baffle 201 and the second baffle 202, the two ends of the plurality of support rods 206 are fixed in the corresponding fixed slots 205, the two ends of the plurality of support rods 206 are fixed with a buffer pad, the first baffle 201 and the second baffle 202 are embedded and fixed with the inner wall of the roadway 1, by the arrangement of the isolation structure, the workers pass the bolt through the first baffle 201 and the second baffle 202, and sequentially fix them in the fixed frame 2 located on the side of the extraction area 3, so that the protruding portion 203 is inserted into the sliding slot 204, so as to form a wall body with double-layer structure by the plurality of first baffles 201 and second baffles 202 arranged in upper and lower, then the workers pour another fixed frame 2 on the side of the non-extraction area 4, so as to be fixed with one side of the second baffle 202, so that the two fixed frames 2 limit and support the first baffle 201 and the second baffle 202, the double-layer structure formed by the first baffle 201 and the second baffle 202 is fixed by the support rod 206, forming a stable frame, which can better withstand the gas pressure, airflow impact and mechanical vibration in the mine, the first baffle 201 and the second baffle 202 are spliced into an isolation wall body, which is convenient for workers to adjust the position or make changes, improves the applicability of the device in the complex roadway 1, and improves the use effect of the device.
[0025] In this embodiment, the right side of the fixed frame 2 is rotatably provided with a lead screw 301, the outer wall surface of the lead screw 301 is threadedly connected with a movable block 302, one side of the movable block 302 is fixedly provided with a hook plate 303, one side of the first partition plate 201 is fixedly provided with a fixed sleeve 304, the hook plate 303 and the fixed sleeve 304 are slidably arranged in the interior of the fixed sleeve 304, the right side of the fixed frame 2 is fixedly provided with a motor, the output end of the motor is fixedly connected with the top end of the lead screw 301, when the first partition plate 201 and the second partition plate 202 are installed, the hook plate 303 can be inserted into the fixed sleeve 304, the motor is started to drive the lead screw 301 to rotate, the movable block 302 lifts the first partition plate 201 together with the second partition plate 202, the first partition plate 201 and the second partition plate 202 are installed after being lifted to a specified height, the lead screw 301 is reversed after the installation is completed, the movable block 302 is lowered, the hook plate 303 is separated from the fixed sleeve 304, and the next first partition plate 201 is lifted and installed, so that the working strength of workers is reduced, and the first partition plate 201 and the second partition plate 202 are quickly installed and fixed.
[0026] In this embodiment, the second partition plate 202 is fixedly provided with a sealing strip 401, the sealing strip 401 is in the shape of a mouth, the left side fixed frame 2 is arranged in the interior of the sealing strip 401, and the sealing strip 401 can improve the sealing effect of the device and prevent gas leakage in the extraction area 3.
[0027] In this embodiment, the second partition plate 202 is fixedly and communicatively provided with a discharge pipe 5 and an input pipe 501, one end of the discharge pipe 5 and the input pipe 501 penetrates through the second partition plate 202 and the first partition plate 201, the discharge pipe 5 can discharge gas in the extraction area 3 when the gas concentration in the extraction area 3 is increased, and the input pipe 501 inputs air during the discharging process to balance the internal air pressure.
[0028] In this embodiment, the first partition plate 201 and the second partition plate 202 are fixedly provided with an explosion-proof net 6 in the interior, the explosion-proof net 6 is prior art, and the explosion-proof net 6 can improve the overall strength of the first partition plate 201 and the second partition plate 202.
[0029] Working principle: in use, the workers pass through the bolt, and sequentially fix the first partition plate 201 and the second partition plate 202 on the fixed frame 2 located at the side of the extraction area 3, make the convex part 203 insert into the sliding groove 204, in this way, the first partition plate 201 and the second partition plate 202 arranged in multiple layers form a wall body with double-layer structure, then the workers pour another fixed frame 2 at the side of the non-extraction area 4, make it fixed with one side of the second partition plate 202, make the two fixed frames 2 limit and support the first partition plate 201 and the second partition plate 202, the double-layer structure formed by the first partition plate 201 and the second partition plate 202 is fixed through the supporting rod 206, forms a stable frame, can better bear the gas pressure, airflow impact and mechanical vibration in the mine, the first partition plate 201 and the second partition plate 202 are spliced into the isolation wall body, which is convenient for the workers to adjust the position or make changes, when installing the first partition plate 201 and the second partition plate 202, the workers can insert the hook plate 303 into the fixed sleeve 304, start the motor to drive the screw rod 301 to rotate, make the movable block 302 lift the first partition plate 201 together with the second partition plate 202, install after lifting to the specified height, reverse the screw rod 301 after installation is completed, the movable block 302 descends, the hook plate 303 leaves the fixed sleeve 304, then lift and install the next first partition plate 201, thereby reducing the working strength of the workers, facilitating the workers to quickly install and fix the first partition plate 201 and the second partition plate 202, the sealing strip 401 can improve the sealing effect of the device, prevent the gas in the extraction area 3 from leaking, the discharge pipe 5 can discharge the gas in the extraction area 3 when the gas concentration in the extraction area 3 increases, the input pipe 501 inputs air to balance the internal air pressure, the explosion-proof net 6 can improve the overall strength of the first partition plate 201 and the second partition plate 202.
[0030] The basic principle and main features of the present application are shown and described above, and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application.
Claims
1. A coal mine underground gas extraction area isolation device, comprising two fixed frames (2) fixed inside a roadway (1), characterized in that: The two fixed frames (2) are provided with isolation structures, the inside of the roadway (1) is divided into an extraction area (3) and a non-extraction area (4), the two fixed frames (2) are located between the extraction area (3) and the non-extraction area (4), the isolation structures comprise a plurality of first partitions (201) arranged between the two fixed frames (2), one side of each of the plurality of first partitions (201) is provided with a second partition (202), each of the plurality of first partitions (201) and the second partition (202) is arranged in an up-down manner, the top surface of each of the first partition (201) and the second partition (202) located at the lower side is fixed with a protruding part (203), the bottom surface of each of the first partition (201) and the second partition (202) located at the upper side is provided with a sliding groove (204), and the protruding part (203) is slidably arranged in the sliding groove (204).
2. The coal mine underground gas extraction area isolation device according to claim 1, characterized in that, The first partition (201) and the second partition (202) are provided with a plurality of fixed grooves (205) on the side close to each other, a plurality of supporting rods (206) are arranged between the first partition (201) and the second partition (202), both ends of each of the plurality of supporting rods (206) are fixed in the corresponding fixed groove (205), and each of the plurality of supporting rods (206) is fixed with a buffer pad at both ends, and the first partition (201) and the second partition (202) are embeddedly and fixedly arranged on the inner wall of the roadway (1).
3. The coal mine underground gas extraction area isolation device according to claim 2, characterized in that, The fixed frame (2) located on the right side is rotatably provided with a lead screw (301) on one side, the outer circular wall surface of the lead screw (301) is threadedly connected with a movable block (302), one side of the movable block (302) is fixed with a hook plate (303), one side of the first partition (201) is fixed with a fixed sleeve (304), the hook plate (303) and the fixed sleeve (304) are slidably arranged in the fixed frame (2) located on the right side, and the fixed frame (2) located on the right side is fixed with a motor on one side, and the output end of the motor is fixed with the top end of the lead screw (301).
4. The coal mine underground gas extraction area isolation device according to claim 3, characterized in that, The second partition (202) is fixed with a sealing strip (401) on one side, the sealing strip (401) is in the shape of a mouth, and the left fixed frame (2) is located in the sealing strip (401).
5. The coal mine underground gas extraction area isolation device according to claim 4, characterized in that, The second partition (202) is fixedly connected with a discharge pipe (5) and an input pipe (501) on one side, and one end of each of the discharge pipe (5) and the input pipe (501) penetrates the second partition (202) and the first partition (201).
6. The coal mine underground gas extraction area isolation device according to claim 5, characterized in that, The first partition (201) and the second partition (202) are fixed with an explosion-proof net (6) in the inside.