Gas extraction device for coal seam

Abstract

The utility model discloses a coal seam gas extraction device which comprises an extractor and an extraction pipe, a connecting pipe is arranged at the upper end of the extraction pipe, a drying pipe is installed at the upper end of the connecting pipe, a conveying pipe is installed at the upper end of the drying pipe, a butt joint structure is installed between the drying pipe and the connecting pipe, and the butt joint structure comprises four clamping plates. The four clamping plates are located at the upper end of the outer wall of the connecting pipe, four rotating plates are fixedly arranged at the lower end of the outer wall of the drying pipe, butt joint grooves are formed in the clamping plates, a sponge barrel is arranged in the drying pipe, a replacement structure is arranged on the inner wall of the drying pipe, the replacement structure comprises a cross plate, and a dismounting rod is arranged at the lower end of the cross plate. The outer wall of the dismantling rod is sleeved with the sponge barrel, a dismantling plate is arranged on the outer wall of the dismantling rod, and the dismantling rod is in threaded connection with the cross plate. According to the coal seam gas extraction device, the butt joint efficiency of the drying cylinder and the connecting pipe can be improved.

Description

Technical Field

[0001] The utility model relates to the field of gas extraction, in particular to a coal seam gas extraction device. Background Art

[0002] Gas is a colorless, tasteless, 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. With the increase in mining depth, the problem of gas exceeding the limit is becoming more and more serious, seriously threatening safe production. Therefore, safe and efficient gas extraction is imperative.

[0003] When the existing extractor is used, a drying tube needs to be set on the extraction tube. When the existing drying tube is connected and installed with the connecting tube, the flange of the outer wall of the drying tube is generally butted against the flange of the outer wall of the connecting tube, and finally fixed with screws. There is no fixed installation structure during butt connection, and the assembly is relatively complicated. Utility Model Content

[0004] The main purpose of the utility model is to provide a coal seam gas extraction device that can effectively solve the technical problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A coal seam gas extraction device includes an extractor and an extraction pipe, a connecting pipe is provided at the upper end of the extraction pipe, a drying pipe is installed at the upper end of the connecting pipe, a transport pipe is installed at the upper end of the drying pipe, a docking structure is installed between the drying pipe and the connecting pipe, the docking structure includes four clamping plates, the four clamping plates are located at the upper end of the outer wall of the connecting pipe, four rotating plates are fixedly provided at the lower end of the outer wall of the drying pipe, and a docking groove is opened inside the clamping plate.

[0007] As a further solution of the utility model, a sponge tube is arranged inside the drying tube, and a replacement structure is arranged on the inner wall of the drying tube. The replacement structure includes a cross plate, and a dismantling rod is arranged at the lower end of the cross plate. The sponge tube is sleeved on the outer wall of the dismantling rod, and a dismantling plate is arranged on the outer wall of the dismantling rod. The dismantling rod is threadedly connected to the cross plate.

[0008] As a further solution of the utility model, the drying pipe is connected to the transport pipe by screws.

[0009] As a further solution of the utility model, a screw is arranged inside the rotating plate, the output end of the screw passes through the clamping plate and a nut is threadedly installed on the lower end.

[0010] As a further solution of the utility model, a sealing ring is fixedly provided on the upper end of the connecting pipe.

[0011] As a further solution of the utility model, sealing pads are fixedly provided at the lower ends of the four rotating plates.

[0012] As a further solution of the utility model, an interception net is provided on the inner wall of the drying tube, and an anti-slip sleeve is provided on the outer wall of the interception net.

[0013] The beneficial effects of the utility model are as follows:

[0014] By setting up the docking structure, when the operator docks and installs the drying pipe and the connecting pipe, he can release both hands by aligning and rotating the rotating plate into the docking groove, which speeds up the docking efficiency. Then, the screw assembly can be used to speed up the efficiency.

[0015] By setting up a structure for quickly replacing the sponge tube, when the sponge tube is seriously damp, the connecting pipe and the drying tube are disassembled, the dismantling rod is rotated to separate the dismantling rod from the cross plate, and the dismantling rod is directly extracted to realize quick removal of the sponge tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a coal seam gas extraction device of the utility model;

[0017] Figure 2 This is a disassembled diagram of a drying pipe and a connecting pipe of a coal seam gas extraction device of the utility model;

[0018] Figure 3 This is a cross-sectional view of a drying pipe of a coal seam gas extraction device of the utility model;

[0019] Figure 4 This is a structural diagram of an interception net of a coal seam gas extraction device according to the utility model.

[0020] In the figure: 1. extractor; 2. extraction tube; 3. connecting tube; 4. drying tube; 5. transport tube; 6. docking structure; 7. clamping plate; 8. rotating plate; 9. docking groove; 10. sealing gasket; 11. sealing ring; 12. screw; 13. sponge tube; 14. replacement structure; 15. cross plate; 16. dismantling rod; 17. dismantling plate; 18. intercepting net; 19. anti-slip sleeve. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1-4As shown, a coal seam gas extraction device includes an extractor 1 and an extraction pipe 2, a connecting pipe 3 is provided at the upper end of the extraction pipe 2, a drying pipe 4 is installed at the upper end of the connecting pipe 3, a transport pipe 5 is installed at the upper end of the drying pipe 4, a docking structure 6 is installed between the drying pipe 4 and the connecting pipe 3, the docking structure 6 includes four clamping plates 7, the four clamping plates 7 are located at the upper end of the outer wall of the connecting pipe 3, four rotating plates 8 are fixedly provided at the lower end of the outer wall of the drying pipe 4, and a docking groove 9 is opened inside the clamping plate 7.

[0023] In this embodiment, a sponge tube 13 is provided inside the drying tube 4, and a replacement structure 14 is provided on the inner wall of the drying tube 4. The replacement structure 14 includes a cross plate 15, and a dismantling rod 16 is provided at the lower end of the cross plate 15. The sponge tube 13 is sleeved on the outer wall of the dismantling rod 16, and a dismantling plate 17 is provided on the outer wall of the dismantling rod 16. The dismantling rod 16 is threadedly connected to the cross plate 15.

[0024] The cross plate 15 is used to facilitate the threaded fixing installation of the removal rod 16, and the removal plate 17 can help the operator to take out the sponge tube 13 later.

[0025] In this embodiment, the drying pipe 4 is connected to the transport pipe 5 by screws.

[0026] The transport pipe 5 is used to enter the area containing gas for extraction.

[0027] In this embodiment, a screw rod 12 is disposed inside the rotating plate 8 , the output end of the screw rod 12 passes through the clamping plate 7 and a nut is threadedly installed on the lower end.

[0028] The screw rod 12 is used to fasten the rotating plate 8 and the clamping plate 7 .

[0029] In this embodiment, a sealing ring 11 is fixedly provided on the upper end of the connecting pipe 3 .

[0030] The sealing ring 11 is used to increase the sealing performance of the connection to avoid leakage.

[0031] In this embodiment, sealing pads 10 are fixedly disposed at the lower ends of the four rotating plates 8 .

[0032] The sealing gasket 10 can ensure that the rotating plate 8 is placed firmly and closely inside the docking groove 9 .

[0033] In this embodiment, an interception net 18 is provided on the inner wall of the drying tube 4 , and an anti-slip sleeve 19 is provided on the outer wall of the interception net 18 .

[0034] The anti-slip sleeve 19 can ensure that the interception net 18 is in close contact with the inner wall of the drying tube 4.

[0035] It should be noted that the utility model is a coal seam gas extraction device. When assembling the connecting pipe 3 and the drying pipe 4, the reinforcing rotating plate 8 is rotated and inserted into the inside of the docking groove 9 to achieve rapid docking of the drying pipe 4 and the connecting pipe 3, so that the operator can release both hands, and use the screw 12 to pass through the rotating plate 8 and the clamping plate 7, and finally use the nut to fix it, thereby speeding up the installation efficiency;

[0036] When the sponge tube 13 inside the drying tube 4 needs to be replaced, the drying tube 4 is removed, the intercepting net 18 is taken down, the removal rod 16 is rotated so that the upper end of the removal rod 16 is rotated out from the cross plate 15, and the removal rod 16 is pulled to quickly remove and replace the wet sponge tube 13, and one end of the transport pipe 5 is sent into the area where the gas exists, and the extractor 1 is started to extract the gas.

[0037] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A coal seam gas extraction device, comprising an extractor (1) and an extraction pipe (2), wherein a connecting pipe (3) is arranged at the upper end of the extraction pipe (2), a drying pipe (4) is installed at the upper end of the connecting pipe (3), and a transport pipe (5) is installed at the upper end of the drying pipe (4), characterized in that: A docking structure (6) is installed between the drying tube (4) and the connecting tube (3), and the docking structure (6) comprises four clamping plates (7). The four clamping plates (7) are located at the upper end of the outer wall of the connecting tube (3), and four rotating plates (8) are fixedly arranged at the lower end of the outer wall of the drying tube (4). A docking groove (9) is provided inside the clamping plate (7).

2. The coal seam gas extraction device according to claim 1 is characterized in that: A sponge tube (13) is arranged inside the drying tube (4), and a replacement structure (14) is arranged on the inner wall of the drying tube (4). The replacement structure (14) comprises a cross plate (15), and a removal rod (16) is arranged at the lower end of the cross plate (15). The sponge tube (13) is sleeved on the outer wall of the removal rod (16), and a removal plate (17) is arranged on the outer wall of the removal rod (16). The removal rod (16) is threadedly connected to the cross plate (15).

3. The coal seam gas extraction device according to claim 1 is characterized in that: The drying pipe (4) is connected to the transport pipe (5) via screws.

4. The coal seam gas extraction device according to claim 1 is characterized in that: A screw rod (12) is arranged inside the rotating plate (8), the output end of the screw rod (12) passes through the clamping plate (7) and a nut is threadedly installed at the lower end.

5. The coal seam gas extraction device according to claim 1 is characterized in that: A sealing ring (11) is fixedly provided on the upper end of the connecting pipe (3).

6. The coal seam gas extraction device according to claim 1 is characterized in that: A sealing pad (10) is fixedly arranged at the lower end of each of the four rotating plates (8).

7. The coal seam gas extraction device according to claim 1 is characterized in that: The inner wall of the drying tube (4) is provided with an interception net (18), and the outer wall of the interception net (18) is provided with an anti-slip sleeve (19).

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