Gas extraction device for high-gas coal mine

Abstract

The utility model discloses a gas extraction device for a high-gas coal mine, and relates to the technical field of drilling of soil layers or rocks. A high-gas coal mine gas extraction device comprises an extraction frame and an extraction pump, the extraction pump is fixedly connected to the top of the extraction frame, sliding grooves are formed in the two sides of the inner wall of the extraction frame, a dust filtering box is slidably connected to the interior of the extraction frame and slidably connected with the two sliding grooves, and a spring hose is fixedly connected to the top of the dust filtering box. Through cooperation of a dust filtering plate, a second threaded rod, a limiting rod and a cleaning brush plate, the dust filtering plate in a dust filtering box can adsorb dust in gas, then the cleaning brush plate moves under guiding of the limiting rod, the cleaning brush plate can clean the dust on the dust filtering plate, and therefore the cleaned dust can fall into a collecting box conveniently; further, the extracted gas can be effectively subjected to dust filtration treatment, and the purity of the extracted gas is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of soil layer or rock drilling, in particular to a gas extraction device for a high-gas coal mine. Background Art

[0002] Gas is formed by the decomposition of cellulose and organic matter by anaerobic bacteria in the early stage of ancient plants forming coal. In a high temperature and high pressure environment, while coal is being formed, gas continues to be generated due to physical and chemical reactions. Gas is a colorless and odorless gas that is difficult to dissolve in water, does not support combustion and cannot sustain breathing. When it reaches a certain concentration, it can cause people to suffocate due to lack of oxygen, and can also cause combustion or explosion.

[0003] Although the existing gas extraction devices can effectively extract gas, during the extraction process, the gas is often mixed with a large amount of dust and particulate matter, which will not only reduce the efficiency of gas extraction, but also may damage the internal structure of the extraction device and shorten the service life of the equipment. In addition, dust and particulate matter may also bring difficulties to the utilization and treatment of gas after extraction, affecting the purification and recovery efficiency of gas. Therefore, we propose a gas extraction device for high-gas coal mines. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a gas extraction device for a high-gas coal mine, which can solve the problem that during the extraction process, the gas is often mixed with a large amount of dust and particulate matter, which will not only reduce the efficiency of gas extraction, but also may damage the internal structure of the extraction device and shorten the service life of the equipment. In addition, the dust and particulate matter may also bring difficulties to the utilization and treatment of the gas after extraction, affecting the purification and recovery efficiency of the gas.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-gas coal mine gas extraction device, comprising an extraction frame and an extraction pump, the extraction pump is fixedly connected to the top of the extraction frame, sliding grooves are provided on both sides of the inner wall of the extraction frame, the interior of the extraction frame is slidingly connected to a dust filter box, the dust filter box is slidingly connected to the two sliding grooves, the top of the dust filter box is fixedly connected to a spring hose, one end of the spring hose away from the dust filter box passes through the top of the extraction frame and is fixedly connected to the extraction pump, one side of the dust filter box is fixedly connected to an extraction pipe, the extraction pipe is connected to the interior of the dust filter box, and a dust filter assembly is provided on the dust filter box.

[0006] Preferably, the dust filter assembly includes a cleaning motor and a dust filter plate, the cleaning motor is fixedly connected to the top of the dust filter box, the dust filter plate is slidably connected to a replacement slot opened in the top of the dust filter box, the output end of the cleaning motor rotates through the top of the dust filter box and is fixedly connected to a second threaded rod, the second threaded rod is rotatably connected to the interior of the dust filter box, and the interior of the dust filter box is fixedly connected to a limiting rod.

[0007] Preferably, a cleaning brush plate is threadedly sleeved on the outer surface of the second threaded rod, and one end of the cleaning brush plate away from the second threaded rod is slidably connected to the outer surface of the limiting rod, and the cleaning brush plate is in contact with the dust filter plate.

[0008] Preferably, a dust collecting box is fixedly connected to the bottom of the dust filter box, the dust collecting box is communicated with the interior of the dust filter box, and a collection box is slidably connected to the interior of the dust collecting box.

[0009] Preferably, a driving motor is fixedly connected to the top of the extraction frame, and a first threaded rod is rotatably connected to the inside of a sliding groove near the driving motor. The top end of the first threaded rod rotates through the top of the extraction frame, the output end of the driving motor is fixedly connected to the top end of the first threaded rod, and the dust filter box is threadedly connected to the first threaded rod.

[0010] Preferably, a baffle is rotatably connected to the top of the dust filter box for blocking the dust filter plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) The high-gas coal mine gas extraction device, through the cooperation of the dust filter plate, the second threaded rod, the limit rod and the cleaning brush plate, enables the dust filter plate in the dust filter box to absorb the dust in the gas. Then, the cleaning brush plate moves under the guidance of the limit rod, so that the cleaning brush plate can clean the dust on the dust filter plate, thereby facilitating the cleaned dust to fall into the collection box, and then the extracted gas can be effectively filtered and the purity of the extracted gas is further improved.

[0013] (2) The high-gas coal mine gas extraction device, through the cooperation of the first threaded rod and the two sliding grooves, enables the first threaded rod to rotate and drive the dust filter box to move under the guidance of the two sliding grooves. The movement of the dust filter box will drive the spring hose to extend or contract, thereby facilitating the connection between the extraction pipe and the fixed-depth buried pipe in the coal seam or soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2This is a schematic diagram of the spring hose structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the extraction frame of the utility model;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the dust filter box of the present utility model.

[0019] Figure numerals: 1. extraction frame; 2. extraction pump; 3. driving motor; 4. dust filter plate; 5. dust filter box; 6. sliding groove; 7. extraction tube; 8. dust collecting box; 9. cleaning motor; 10. spring hose; 11. collecting box; 12. first threaded rod; 13. second threaded rod; 14. limiting rod; 15. cleaning brush plate; 16. replacement groove. DETAILED DESCRIPTION

[0020] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0021] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0023] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0024] See also Figure 1-4The utility model provides a technical solution: a gas extraction device for a high-gas coal mine, comprising an extraction frame 1 and an extraction pump 2, the extraction pump 2 is fixedly connected to the top of the extraction frame 1, sliding grooves 6 are provided on both sides of the inner wall of the extraction frame 1, a dust filter box 5 is slidably connected inside the extraction frame 1, the dust filter box 5 is slidably connected to the two sliding grooves 6, a spring hose 10 is fixedly connected to the top of the dust filter box 5, one end of the spring hose 10 away from the dust filter box 5 passes through the top of the extraction frame 1 and is fixedly connected to the extraction pump 2, a extraction pipe 7 is fixedly connected to one side of the dust filter box 5, the extraction pipe 7 is communicated with the inside of the dust filter box 5, and a dust filter assembly is provided on the dust filter box 5.

[0025] The dust filter assembly includes a cleaning motor 9 and a dust filter plate 4, the cleaning motor 9 is fixedly connected to the top of the dust filter box 5, the dust filter plate 4 is slidably connected to the replacement slot 16 opened at the top of the dust filter box 5, the top of the dust filter box 5 is rotatably connected with a baffle for blocking the dust filter plate 4, the output end of the cleaning motor 9 rotates through the top of the dust filter box 5 and is fixedly connected with a second threaded rod 13, the second threaded rod 13 is rotatably connected to the inside of the dust filter box 5, the inside of the dust filter box 5 is fixedly connected with a limit rod 14, the outer surface of the second threaded rod 13 is threadedly sleeved with a cleaning brush plate 15, the end of the cleaning brush plate 15 away from the second threaded rod 13 is slidably connected to the outer surface of the limit rod 14, and the cleaning brush plate 15 contacts the dust filter plate 4.

[0026] A dust collecting box 8 is fixedly connected to the bottom of the dust filter box 5 . The dust collecting box 8 is communicated with the interior of the dust filter box 5 . A collecting box 11 is slidably connected to the interior of the dust collecting box 8 .

[0027] A driving motor 3 is fixedly connected to the top of the extraction frame 1, and a first threaded rod 12 is rotatably connected inside the sliding groove 6 near the driving motor 3. The top end of the first threaded rod 12 rotates through the top of the extraction frame 1, the output end of the driving motor 3 is fixedly connected to the top end of the first threaded rod 12, and the dust filter box 5 is threadedly connected to the first threaded rod 12.

[0028] Furthermore, when using the device, the drive motor 3 is started by connecting an external power supply, and the drive motor 3 drives the first threaded rod 12 to rotate. The rotation of the first threaded rod 12 drives the dust filter box 5 to move under the guidance of the two sliding grooves 6. The movement of the dust filter box 5 drives the spring hose 10 to extend or contract, thereby facilitating the docking of the extraction pipe 7 with the fixed-depth buried pipe in the coal seam or soil. The extraction pump 2 is started by connecting an external power supply, and the extraction pump 2 extracts the gas in the coal mine through the extraction pipe 7. The gas extracted by the extraction pipe 7 will first After entering the dust filter box 5, it will be filtered by the dust filter plate 4 in the dust filter box 5, so that the dust filter plate 4 absorbs the dust in the gas, and the cleaning motor 9 is started by connecting to an external power supply. The cleaning motor 9 drives the second threaded rod 13 to rotate, and the rotation of the second threaded rod 13 drives the cleaning brush plate 15 to move under the guidance of the limiting rod 14, so that the cleaning brush plate 15 will clean the dust on the dust filter plate 4, and the cleaned dust will fall into the collecting box 11, so that the extracted gas can be effectively filtered.

[0029] Through the cooperation of the dust filter plate 4, the second threaded rod 13, the limiting rod 14 and the cleaning brush plate 15, the dust filter plate 4 in the dust filter box 5 will absorb the dust in the gas. Then, the cleaning brush plate 15 moves under the guidance of the limiting rod 14, so that the cleaning brush plate 15 will clean the dust on the dust filter plate 4, thereby facilitating the cleaned dust to fall into the collecting box 11, and then the extracted gas can be effectively filtered, thereby further improving the purity of the extracted gas.

[0030] Through the cooperation of the first threaded rod 12 and the two sliding grooves 6, the first threaded rod 12 rotates to drive the dust filter box 5 to move under the guidance of the two sliding grooves 6. The movement of the dust filter box 5 will drive the spring hose 10 to extend or contract, thereby facilitating the docking of the extraction pipe 7 with the fixed depth buried pipe in the coal seam or soil.

[0031] Working principle: the driving motor 3 is started by connecting an external power source, and the driving motor 3 drives the first threaded rod 12 to rotate. The rotation of the first threaded rod 12 drives the dust filter box 5 to move under the guidance of the two sliding grooves 6. The movement of the dust filter box 5 will drive the spring hose 10 to extend or contract. The extraction pump 2 is started by connecting an external power source. The extraction pump 2 extracts the gas in the coal mine through the extraction pipe 7. The gas extracted by the extraction pipe 7 will first enter the dust filter box 5, and then will be filtered by the dust filter plate 4 in the dust filter box 5, so that the dust filter plate 4 absorbs the dust in the gas. The cleaning motor 9 is started by connecting an external power source, and the cleaning motor 9 drives the second threaded rod 13 to rotate. The rotation of the second threaded rod 13 drives the cleaning brush plate 15 to move under the guidance of the limit rod 14, so that the cleaning brush plate 15 will clean the dust on the dust filter plate 4, so that the cleaned dust will fall into the collecting box 11, thereby effectively filtering the extracted gas.

[0032] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A gas extraction device for a high-gas coal mine, comprising an extraction frame (1) and an extraction pump (2), wherein the extraction pump (2) is fixedly connected to the top of the extraction frame (1), and is characterized in that: Sliding grooves (6) are provided on both sides of the inner wall of the extraction frame (1), a dust filter box (5) is slidably connected inside the extraction frame (1), and the dust filter box (5) is slidably connected to the two sliding grooves (6); The top of the dust filter box (5) is fixedly connected with a spring hose (10), and one end of the spring hose (10) away from the dust filter box (5) passes through the top of the extraction frame (1) and is fixedly connected to the extraction pump (2); Wherein, a suction pipe (7) is fixedly connected to one side of the dust filter box (5), and the suction pipe (7) is in communication with the interior of the dust filter box (5); Wherein, a dust filter assembly is arranged on the dust filter box (5).

2. A high-gas coal mine gas extraction device according to claim 1, characterized in that: The dust filter assembly comprises a cleaning motor (9) and a dust filter plate (4), wherein the cleaning motor (9) is fixedly connected to the top of the dust filter box (5), and the dust filter plate (4) is slidably connected to a replacement slot (16) opened at the top of the dust filter box (5); The output end of the cleaning motor (9) rotates through the top of the dust filter box (5) and is fixedly connected to a second threaded rod (13); the second threaded rod (13) is rotatably connected to the inside of the dust filter box (5); and a limiting rod (14) is fixedly connected to the inside of the dust filter box (5).

3. A high-gas coal mine gas extraction device according to claim 2, characterized in that: The outer surface of the second threaded rod (13) is threadedly sleeved with a cleaning brush plate (15); one end of the cleaning brush plate (15) away from the second threaded rod (13) is slidably connected to the outer surface of the limiting rod (14); and the cleaning brush plate (15) is in contact with the dust filter plate (4).

4. A high-gas coal mine gas extraction device according to claim 1, characterized in that: The bottom of the dust filter box (5) is fixedly connected to a dust collecting box (8), the dust collecting box (8) is communicated with the interior of the dust filter box (5), and the interior of the dust collecting box (8) is slidably connected to a collecting box (11).

5. A high-gas coal mine gas extraction device according to claim 1, characterized in that: The top of the extraction frame (1) is fixedly connected to a driving motor (3); a first threaded rod (12) is rotatably connected to the inside of a sliding groove (6) near the driving motor (3); the top end of the first threaded rod (12) rotates through the top of the extraction frame (1); the output end of the driving motor (3) is fixedly connected to the top end of the first threaded rod (12); and the dust filter box (5) is threadably connected to the first threaded rod (12).

6. A high-gas coal mine gas extraction device according to claim 2, characterized in that: The top of the dust filter box (5) is rotatably connected with a baffle plate for blocking the dust filter plate (4).

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