Coal face gas control device

Abstract

The utility model discloses a coal face gas control device in the field of gas control, which comprises a shell and a foot margin connected with the bottom of the shell, a connecting pipe is connected with the side face of the shell in a penetrating manner, the other end of the connecting pipe is connected with a non-return shell, the other end of the non-return shell is connected with a butt joint ring in a penetrating manner, and the other end of the butt joint ring is connected with an air blower. According to the mine gas safety ignition device, the gas treatment effect in a mine hole can be effectively improved, the gas safety ignition effect is achieved in the shell through the mine gas safety ignition device, the safety of the mine hole is improved, the safety of the mine hole is improved, the safety of the mine hole is improved, and the safety of the mine hole is improved. Therefore, the problem of gas backfire and the like can be avoided while the effect of gas consumption is achieved, and the safety and the stability of the device are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas control technical field especially is concerned with a coal face gas control device. BACKGROUND

[0002] In the process of coal hole construction and coal seam drilling, a large amount of gas is sprayed from coal rock fissures and drill holes, causing gas spray holes, which not only makes drilling impossible to continue, but also easily causes gas explosion in the tunneling roadway; according to the statistical data in recent years, gas explosion causes about 47% of the total number of coal mine accidents, how to effectively control the leakage of gas has become a problem that all departments of coal mine are concerned about.

[0003] The Chinese patent with publication number CN221921058U discloses a coal face gas control device, relating to the technical field of gas control, comprising a collection tank and a filter box, a gas outlet pipe is fixedly installed on the left side of the collection tank, a conveying pipe is fixedly connected to the left end of the gas outlet pipe, and the right end of the gas outlet pipe extends into the interior of the collection tank; a communication pipe is fixedly installed on the right side of the collection tank, the collection tank is in communication with the filter box through the communication pipe, an exhaust pipe is fixedly installed on the right side of the filter box, a spray plate is fixedly installed on the top of the filter box, a water delivery assembly is fixedly installed on one side of the filter box, and the water delivery assembly is in communication with the spray plate; a one-way valve is fixedly installed in the interior of the conveying pipe and the communication pipe. The utility model can avoid the coal dust on the coal face being carried out with the gas during the gas extraction process, effectively prevent the gas extraction pipe from being blocked, and avoid the possibility of explosion.

[0004] However, the above-mentioned disclosed scheme has the following disadvantages: the above-mentioned scheme prevents the exhaust equipment from being blocked by filtering the gas during use, but the above-mentioned device cannot reduce the gas content during use, and thus cannot reduce the risk inside the mine. SUMMARY

[0005] This section aims to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] The utility model discloses a coal face gas treatment device, the utility model discloses a device can effectively improve the gas management effect inside the mine, through the device in the shell inside the effect of safe ignition of gas, thereby realizing the effect of avoiding the backfire of gas and the like while consuming gas, and further improving the safety stability of the device.

[0007] The utility model discloses a coal face gas treatment device, the utility model discloses a device can effectively improve the gas management effect inside the mine, through the device in the shell inside the effect of safe ignition of gas, thereby realizing the effect of avoiding the backfire of gas and the like while consuming gas, and further improving the safety stability of the device.

[0008] Through the combination structure of the pressure relief part and the non-return part, the directional pressure relief effect of high-pressure gas can be realized, the backfire of the device is avoided, and the use stability of the device is ensured.

[0009] Preferably, the filter part comprises a filter shell connected with the inner wall of the shell, the inner wall of the filter shell is provided with a mounting groove, the mounting groove is connected with a filter screen in a butt joint mode, and the filter screen is arranged at the gas outlet end of the connecting pipe.

[0010] Through the combination structure of the filter screen and the mounting groove, the filter screen installation and replacement efficiency of the device can be ensured.

[0011] Preferably, the inner part of the shell is connected with a butt joint pipe, the outer arc surface of the butt joint pipe is connected with an ignition device in a penetrating mode, and one end of the butt joint pipe is connected with the filter shell.

[0012] Through the filter shell, the butt joint connection stability of the device is ensured.

[0013] Preferably, the pressure relief part comprises a pressure relief pipe connected with one end of the butt joint pipe away from the filter shell, an elastic telescopic rod is connected with the inner wall of the pressure relief pipe, a gas pressure plate is connected with the telescopic end of the elastic telescopic rod, the gas pressure plate is connected with the inner wall of the pressure relief pipe in a sliding mode, and the outer arc surface of the pressure relief pipe is connected with the gas outlet pipe in a penetrating mode.

[0014] Through the structure of the pressure relief pipe, the directional pressure relief effect of the deflagration high-pressure gas can be effectively improved.

[0015] Preferably, the reverse stopping component comprises an arc-shaped groove arranged on the inner wall of the reverse stopping shell, a reverse stopping plate slidingly connected with the arc-shaped groove, the reverse stopping plate being rotationally connected with the reverse stopping shell, a spring support connected with the inner wall of the reverse stopping shell, a spring connected with the side surface of the spring support, and the other end of the spring being connected with the side surface of the reverse stopping plate.

[0016] By adopting the technical scheme, the spring and the spring support can automatically restore the reverse stopping plate.

[0017] Preferably, the side surface of the pressure relief pipe is provided with a plurality of gas outlet pipes at equal intervals, the gas outlet pipes penetrating the side surface of the shell, and one end of the gas outlet pipe being in contact with the air pressure plate.

[0018] By adopting the technical scheme, the structure of the gas outlet pipe can adjust the actual pressure.

[0019] Preferably, the other ends of the plurality of gas outlet pipes away from the pressure relief pipe are simultaneously connected with a converging pipe penetrating the converging pipe, the top of the converging pipe being provided with a water guide, the diameter of the water guide being greater than that of the converging pipe, and the water guide being conical.

[0020] By adopting the technical scheme, the water guide can prevent rainwater from entering the converging pipe.

[0021] Preferably, the butt joint pipe is in an inverted U shape, the end of the pressure relief pipe away from the butt joint pipe is sealed, and the ignition end of the ignition device is arranged in the butt joint pipe.

[0022] By adopting the technical scheme, the combination of the butt joint pipe and the ignition device can achieve the gas ignition effect.

[0023] Preferably, the butt joint ring is provided with a sealing ring and a threaded locking piece penetratingly and threadedly connected, the sealing ring being arranged between the butt joint rings, the side of the air blower away from the butt joint ring being provided with an air inlet pipe, and the side surface of the air blower being provided with a control button.

[0024] In summary, the utility model has at least one beneficial effect as follows:

[0025] The device adopts the safe gas ignition effect, can consume gas during use, and improves the safety and stability of the mine. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0027] Figure 1 It is a front view of an embodiment of the present application for a coal mining face gas treatment device.

[0028] Figure 2 It is a structure schematic view of a merging pipe in the embodiment of the present application.

[0029] Figure 3 It is a structure schematic view of a filter shell in the embodiment of the present application.

[0030] Figure 4 It is a structure schematic view of a filter screen in the embodiment of the present application.

[0031] Figure 5 It is a structure schematic view of a pressure relief pipe in the embodiment of the present application.

[0032] Figure 6 It is a structure schematic view of a blower in the embodiment of the present application.

[0033] Figure 7 It is Figure 6 It is an enlarged view of structure A in the embodiment of the present application.

[0034] Reference signs: 1, shell; 2, foot; 3, blower; 4, butt joint ring; 5, check shell; 6, connecting pipe; 7, gas outlet pipe; 8, merging pipe; 9, water guide; 10, filter part; 1001, filter shell; 1002, mounting groove; 1003, filter screen; 11, butt joint pipe; 12, ignition part; 13, pressure relief part; 1301, pressure relief pipe; 1302, elastic expansion bar; 1303, air pressure plate; 14, check part; 1401, arc-shaped groove; 1402, check plate; 1403, spring support; 1404, spring. DETAILED DESCRIPTION

[0035] The following will combine the drawings in the embodiment of the present application with the description to make a further detailed description. Figures 1-7 The present application will be further described in detail.

[0036] Embodiment one, as shown in the drawings, the present application is a coal mining face gas treatment device, which comprises a shell, a foot, a blower, a butt joint ring, a check shell, a connecting pipe, a gas outlet pipe, a merging pipe, a water guide, a filter part, a butt joint pipe, an ignition part, a pressure relief part, a check part and a spring. Figures 1-7As shown in the present embodiment in order to be able to solve the existing problems, the utility model discloses a coal face gas control device, including shell 1 and the bottom connected with footing 2, shell 1 side is connected with the connecting pipe 6, the other end of connecting pipe 6 is connected with the reverse prevention shell 5, the other end of reverse prevention shell 5 is connected with the docking ring 4, the other end of docking ring 4 is connected with the air blower 3, the filter part 10 is connected in shell 1, and the pressure relief part 13 is connected in the side of shell 1, and the reverse prevention part 14 is connected in the inside of reverse prevention shell 5.

[0037] The filter part 10 includes the filter shell 1001 connected with the inner wall of the shell 1, the inner wall side of the filter shell 1001 is provided with the mounting groove 1002, the mounting groove 1002 is connected with the filter screen 1003, and the filter screen 1003 is arranged at the air outlet end of the connecting pipe 6.

[0038] The shell 1 is connected with the docking pipe 11, the outer arc surface of the docking pipe 11 is connected with the igniter 12, and one end of the docking pipe 11 is connected with the filter shell 1001.

[0039] The pressure relief part 13 includes the pressure relief pipe 1301 connected with one end of the docking pipe 11 away from the filter shell 1001, the inner wall of the pressure relief pipe 1301 is connected with the elastic telescopic rod 1302, the telescopic end of the elastic telescopic rod 1302 is connected with the air pressure plate 1303, the air pressure plate 1303 is connected with the inner wall of the pressure relief pipe 1301, and the outer arc surface side of the pressure relief pipe 1301 is connected with the air outlet pipe 7.

[0040] The reverse prevention part 14 includes the arc-shaped groove 1401 arranged on the inner wall of the reverse prevention shell 5, the arc-shaped groove 1401 is connected with the reverse prevention plate 1402, the reverse prevention plate 1402 is rotatably connected with the reverse prevention shell 5, the inner wall of the reverse prevention shell 5 is connected with the spring support 1403, the side of the spring support 1403 is connected with the spring 1404, and the other end of the spring 1404 is connected with the side of the reverse prevention plate 1402.

[0041] The specific working principle is as follows: This device can effectively improve the efficiency and effect of gas treatment. When the device is in use, the blower 3 can squeeze the air inside the mine into the shell 1. The docking ring 4 can improve the docking accuracy of the device. The backflow preventer 14 inside the backflow preventer 5 can be in the open state during the process of gas entering the shell 1. When the gas enters the shell 1, the filter screen 1003 filters the gas and reduces the dust inside the gas. When the gas moves to the position of the ignition element 12 through the docking pipe 11, the gas is ignited by the ignition element 12. When the gas contains a sufficient concentration of gas, the gas begins to burn. The high temperature and high pressure gas generated by the combustion is generated inside the docking pipe 11. At this time, the high pressure diffuses to both sides. When the high pressure diffuses into the backflow preventer 5, the backflow preventer 1402 rotates in the opposite direction, thereby causing the backflow preventer 1402 to contact each other and achieve the sealing effect inside the backflow preventer 5.

[0042] When the pressure diffuses at the other end of the connecting pipe 11, the high-pressure gas squeezes and pushes the pressure plate 1303, thereby achieving a buffering effect on the expansion of the high-pressure gas. At the same time, during the elastic sliding process of the pressure plate 1303, more gas outlet pipes 7 are connected to the pressure relief pipe 1301, thereby achieving a more efficient pressure relief effect of this device. It is normal for an open flame to appear inside the manifold 8. The structure of the check plate 1402 can prevent backfire from occurring in this device.

[0043] Example 2, as Figures 1-7 As shown, in order to solve the existing problems in this embodiment, based on the same concept as the first embodiment above, the gas control device for coal mining face further includes: a plurality of equally spaced gas outlet pipes 7 are provided on the side of the pressure relief pipe 1301, the gas outlet pipes 7 penetrate the side of the shell 1, and one end of the gas outlet pipe 7 is in contact with the pressure plate 1303.

[0044] Several of the vent pipes 7 are connected to a manifold pipe 8 at one end away from the pressure relief pipe 1301. The top of the manifold pipe 8 is open and a water guide 9 is provided at the top of the manifold pipe 8. The diameter of the water guide 9 is larger than that of the manifold pipe 8 and the water guide 9 is conical.

[0045] The connecting pipe 11 is inverted U-shaped, the end of the pressure relief pipe 1301 away from the connecting pipe 11 is sealed, and the ignition end of the ignition element 12 is located inside the connecting pipe 11.

[0046] The blower 3 has an air inlet pipe on the side away from the docking ring 4, and a control button is provided on the side of the blower 3.

[0047] The docking ring 4 is provided with a sealing ring and a threaded locking member with a through thread connection. The sealing ring is disposed between the docking rings 4.

[0048] The specific working principle is that the device can realize the effect of safely igniting and consuming the combustible gas in the air, thereby realizing the gas safety treatment effect of the device.

[0049] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A coal face gas control device, comprising a shell (1) and a foot (2) connected to the bottom of the shell, characterized in that, The shell (1) side through the connection pipe (6) is connected with the other end of the non-return housing (5), the other end of the non-return housing (5) through the connection of the butt ring (4), the other end of the butt ring (4) is connected with the blower (3), the shell (1) is connected with the filter component (10), the shell (1) side through the connection of pressure relief component (13), the non-return housing (5) is connected with the non-return component (14).

2. The gas control device for a coal mining face according to claim 1, characterized in that, The filter component (10) includes a filter housing (1001) connected to the inner wall of the shell (1), the inner wall of the filter housing (1001) is provided with a mounting groove (1002), the mounting groove (1002) is connected with a filter screen (1003), and the filter screen (1003) is arranged at the air outlet end of the connecting pipe (6).

3. The gas control device for a coal mining face according to claim 2, characterized in that, The inner wall of the shell (1) is connected with a butt pipe (11), the outer arc surface of the butt pipe (11) is connected with an ignition device (12), and one end of the butt pipe (11) is connected with the filter housing (1001).

4. The gas control device for a coal mining face according to claim 3, characterized in that, The pressure relief component (13) includes a pressure relief pipe (1301) connected to one end of the butt pipe (11) away from the filter housing (1001), an elastic telescopic rod (1302) connected to the inner wall of the pressure relief pipe (1301), an air pressure plate (1303) connected to the telescopic end of the elastic telescopic rod (1302), the air pressure plate (1303) is connected with the inner wall of the pressure relief pipe (1301), and the outer arc surface of the pressure relief pipe (1301) is connected with the air outlet pipe (7).

5. The gas control device for a coal mining face according to claim 4, characterized in that, The non-return component (14) includes an arc-shaped groove (1401) provided in the inner wall of the non-return housing (5), a non-return plate (1402) slidably connected with the arc-shaped groove (1401), the non-return plate (1402) is rotatably connected with the non-return housing (5), a spring support (1403) connected with the inner wall of the non-return housing (5), a spring (1404) connected with the side of the spring support (1403), and the other end of the spring (1404) is connected with the side of the non-return plate (1402).

6. The gas control device for a coal mining face according to claim 5, characterized in that, The side of the pressure relief pipe (1301) is provided with a plurality of equally spaced air outlet pipes (7), the air outlet pipes (7) penetrate the side of the shell (1), and one end of the air outlet pipe (7) is in contact with the air pressure plate (1303).

7. The gas control device for a coal mining face according to claim 6, characterized in that, The other end of the plurality of air outlet pipes (7) away from the pressure relief pipe (1301) is connected with a converging pipe (8) at the same time, the top of the converging pipe (8) is penetrated, and the top of the converging pipe (8) is provided with a water guide (9). The diameter of the water guide (9) is greater than that of the converging pipe (8), and the water guide (9) is conical.

8. The gas control device for a coal mining face according to claim 7, characterized in that, The butt pipe (11) is in inverted U shape, the end of the pressure relief pipe (1301) away from the butt pipe (11) is sealed, and the ignition end of the ignition device (12) is arranged in the butt pipe (11).

9. The gas control device for a coal mining face according to claim 8, characterized in that, The butt ring (4) is provided with a sealing ring, the butt ring (4) is provided with a threaded locking member penetratingly connected with threads, and the sealing ring is arranged between the butt rings (4).

10. The gas control device for a coal mining face according to claim 9, characterized in that, The side of the blower (3) away from the butt ring (4) is provided with an air inlet pipe, and the side of the blower (3) is provided with a control button.

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