CN112832845A

CN112832845A - Coal mine coal face upper corner gas extraction device and extraction method thereof

Info

Publication number: CN112832845A
Application number: CN202110028732.1A
Authority: CN
Inventors: 秦江涛
Original assignee: Chongqing Vocational Institute of Engineering
Current assignee: Chongqing Vocational Institute of Engineering
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2021-05-25
Anticipated expiration: 2041-01-11
Also published as: CN112832845B

Abstract

The invention discloses a gas extraction device and a gas extraction method for an upper corner of a coal mining working face of a coal mine. According to the invention, through the arrangement of the extraction cavity, the ventilation cavity, the extraction device, the ventilation device, the filtering device, the driving device, the air outlet pipe and the air inlet pipe, the efficiency of gas extraction can be improved, the ventilation and air exchange of the upper corner can be realized, the air is prevented from being too thin, the danger of gas explosion is reduced, through the arrangement of the humidifying cavity, the dust removal device and the humidifying device, the gas is subjected to secondary filtering and dust removal, the purity of the extracted gas is improved, the environment of the upper corner can be subjected to humidifying treatment, and the dust emission is avoided.

Description

Coal mine coal face upper corner gas extraction device and extraction method thereof

Technical Field

The invention relates to the technical field of coal mine extraction, in particular to an upper corner gas extraction device of a coal mine coal face and an extraction method thereof.

Background

The coal mine is an area where people mine coal resources in a coal-rich mining area, and is generally divided into a mineworker coal mine and an opencast coal mine, when a coal bed is far away from the ground surface, coal is generally selected to dig a tunnel to the underground, the mineworker coal mine is the mineworker coal mine, when the coal bed is very close to the ground surface, the direct stripping of the surface soil layer is generally selected to dig the coal, the opencast coal mine is the opencast coal mine, most coal mines in China belong to the mineworker coal mine, the coal mine range comprises large areas of the ground, the underground and related facilities, the coal mine is a reasonable space which is excavated by people when digging geological strata rich in the coal, the coal mine generally comprises the tunnel, the underground, a digging surface and the like, the coal is the most main solid fuel, is one of combustible organic rock, is formed by flourishing plants growing in a certain geological age, gradually forming a thick layer in a proper geological environment, is buried in the water bottom or silt and is subjected to the natural coal effect of the long geological age, in the geologic periods of the world, most coal is produced in the stratums of the stone charm, the pilaster, the Jurassic and the third era, which is an important coal-forming era. The carbon content of the coal is generally 46-97%, the coal is brown to black, has dull to metallic luster, according to different coalification degrees, the coal can be divided into four types of peat, lignite, soft coal and anthracite, the coal mining working face refers to the first production field of the coal, and the coal mining working face has the characteristics of narrow working space, more mechanical equipment, poor visual environment and high temperature, the safety accident frequently occurs, the safety management work of the whole coal mine is seriously influenced, the safety management device is a key area in the safety management work of the coal mine, the upper corner generally represents mining terminology, and refers to a triangular zone which is close to the upper side of a coal mining working face and the edge of a goaf and is close to the upper side of a return airway, the area is poor in ventilation, high in temperature and humidity, high in gas concentration and easy to accumulate gas released by intersection of the goaf and the mining face, is the key point of gas prevention and control of the working face, and gas in the upper corner needs to be extracted by the gas extraction device during coal mining.

When the existing upper corner gas extraction device is used, the efficiency of gas extraction is low, ventilation and air exchange cannot be performed on the upper corner, air at the upper corner is easy to thin only by air extraction, the danger of gas explosion exists, the gas cannot be filtered, dedusted, collected and utilized, a large amount of dust can also appear during gas extraction, the dust cannot be inhibited, and the purity of the extracted gas is influenced, so that the problem is urgently solved by providing the upper corner gas extraction device on the coal mining working face of the coal mine and the extraction method thereof.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a coal mine coal face upper corner gas extraction device and an extraction method thereof, which have the advantages of ventilation, dust suppression, humidification and the like, and solve the problem of low extraction efficiency.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: the gas extraction device comprises an extraction box and a base, wherein the lower surface of the extraction box is fixedly connected with the base, a first partition plate and a second partition plate are sequentially arranged on the inner wall of the extraction box from top to bottom, an extraction cavity is arranged above the first partition plate, a ventilation cavity is arranged above the second partition plate, a humidification cavity is arranged below the second partition plate, an extraction device and a dust removal device are arranged inside the extraction cavity, a ventilation device and a filtering device are arranged inside the ventilation cavity, a humidification device is arranged inside the humidification cavity, a driving device is arranged on the front surface of the extraction box, an air outlet pipe is arranged on one side of the extraction box, and an air inlet pipe is arranged below the air outlet pipe.

Preferably, the extraction device comprises an air pump, a first air pipe, a second air pipe and a filtering plug, the air pump is fixedly connected to the upper surface of the first partition plate, the first air pipe is arranged on the two sides of the air pump, the second air pipe is arranged on one side of the first air pipe, and the filtering plug is arranged at an air inlet of the second air pipe.

Preferably, the dust collector includes filter, air vent, fly leaf, inserted bar, movable rod and pushing hands, the middle part fixedly connected with filter of first baffle upper surface, the upper surface of filter and the interior roof fixed connection of taking out the extraction case, the air vent has been seted up to the side of filter, one side of filter is provided with the fly leaf, one side fixedly connected with inserted bar of fly leaf, the opposite side fixedly connected with movable rod of fly leaf, the one end fixedly connected with pushing hands of fly leaf is kept away from to the movable rod.

Preferably, ventilation unit includes driven gear, bull stick, suction fan, dust filter and draft hood, the inside in draft chamber is provided with driven gear, one side fixedly connected with bull stick of driven gear, driven gear's one end fixedly connected with suction fan is kept away from to the bull stick, one side of suction fan is provided with dust filter, the lateral wall in draft chamber is provided with the draft hood.

Preferably, filter equipment includes rose box, condensing plate, activated carbon plate, filter pulp and quartz sand, the last fixed surface of second baffle is connected with the rose box, the inside of rose box has from left to right set gradually condensing plate, activated carbon plate, filter pulp and quartz sand, one side and the intake pipe intercommunication of rose box.

Preferably, the humidifying device comprises a water storage tank, a water pump, a first water pipe, a second water pipe and an atomizing nozzle, the inner bottom wall of the pumping and extracting box is fixedly connected with the water storage tank, the water pump is arranged on one side of the water storage tank, the water storage tank is communicated with the water pump through the first water pipe, the second water pipe is arranged on one side of the water pump, and the atomizing nozzle is arranged at a water outlet of the second water pipe.

Preferably, drive arrangement includes motor case, driving motor, inhales sound sponge, driving gear and cingulum, take out the positive fixedly connected with motor case of taking out the case, the inside of motor case is provided with driving motor, driving motor's surface is provided with inhales the sound sponge, driving motor's output fixedly connected with driving gear, the surface swing joint of driving gear has the cingulum.

Preferably, the upper surface of the extraction box is fixedly connected with a fixed rod, the top end of the fixed rod is movably connected with an illuminating lamp, and the front surface of the fixed rod is movably connected with an adjusting bolt.

Preferably, the front surface of the motor case is provided with heat dissipation holes, and dust screens are arranged inside the heat dissipation holes.

Preferably, four corners of the lower surface of the base are fixedly connected with universal wheels, the inner top wall of the water storage tank is fixedly connected with a liquid level sensor, and one side of the water storage tank is provided with a water inlet pipe.

(III) advantageous effects

Compared with the prior art, the invention provides a coal mine coal face upper corner gas extraction device and an extraction method thereof, which have the following beneficial effects:

1. according to the gas extraction device and the gas extraction method for the upper corner of the coal mine coal face, the gas at the upper corner can be extracted into the extraction cavity after being primarily filtered by the extraction device through the matching arrangement of the extraction cavity, the ventilation device, the filtering device, the driving device, the gas outlet pipe and the gas inlet pipe, the gas can be finally extracted by the gas outlet pipe for collection and utilization, the gas is extracted by a plurality of second gas pipes simultaneously, the gas extraction efficiency is improved, the driving device drives the ventilation device to work, the external air introduced into the ventilation cavity from the gas inlet pipe is filtered, humidified and then discharged, the ventilation and the air exchange of the upper corner are realized, the condition that the air at the upper corner is too thin is avoided, and the danger of gas explosion is reduced.

2. The gas extraction device and the gas extraction method for the upper corner of the coal mine coal face are characterized in that the humidifying cavity, the dust removal device and the humidifying device are arranged in a matched mode, the dust removal device can perform secondary filtering and dust removal on gas introduced into the extraction cavity, dust impurities are prevented from being mixed into the outlet pipe and being discharged, the purity of extracted gas is improved, meanwhile, the dust impurities attached to the outer surface of the filter plate can be conveniently cleaned, the humidifying device can spray water in the water storage tank through the atomizing nozzle, the humidifying device can perform humidifying treatment on the environment of the upper corner, raise dust at the upper corner during ventilation is avoided, and the safety of coal mining work is improved.

Drawings

FIG. 1 is a schematic perspective structural diagram of a coal mine coal face upper corner gas extraction device and an extraction method thereof provided by the invention;

FIG. 2 is a schematic structural diagram of a front view section of an upper corner gas extraction device of a coal mine coal face and an extraction method thereof, which are provided by the invention;

FIG. 3 is a schematic structural diagram of a front view of an upper corner gas extraction device of a coal mining working face and an extraction method thereof, which are provided by the invention;

FIG. 4 is a schematic diagram of a three-dimensional explosion structure of a ventilation device and a driving device of the coal mining working face upper corner gas extraction device and the extraction method thereof, which are provided by the invention;

FIG. 5 is a schematic perspective structural view of a dust removal device of the coal mining working face upper corner gas extraction device and the extraction method thereof provided by the invention;

fig. 6 is a schematic sectional structure diagram of a filtering device of the coal mine coal face upper corner gas extraction device and the extraction method thereof.

In the figure: 1. an extraction box; 2. a base; 3. a first separator; 4. a second separator; 5. an extraction cavity; 6. a ventilation cavity; 7. a humidification chamber; 8. an extraction device; 801. an air pump; 802. a first gas delivery pipe; 803. a second gas delivery pipe; 804. filtering the plug; 9. a dust removal device; 901. a filter plate; 902. a vent hole; 903. a movable plate; 904. inserting a rod; 905. a movable rod; 906. a pushing handle; 10. a ventilation device; 1001. a driven gear; 1002. a rotating rod; 1003. an exhaust fan; 1004. a dust filtration cover; 1005. a ventilation hood; 11. a filtration device; 1101. a filter box; 1102. a condensing plate; 1103. an activated carbon plate; 1104. filtering cotton; 1105. quartz sand; 12. a humidifying device; 1201. a water storage tank; 1202. a water pump; 1203. a first water delivery pipe; 1204. a second water delivery pipe; 1205. an atomizing spray head; 13. a drive device; 1301. a motor case; 1302. a drive motor; 1303. sound-absorbing sponge; 1304. a driving gear; 1305. a toothed belt; 14. an air outlet pipe; 15. an air inlet pipe; 16. fixing the rod; 17. an illuminating lamp; 18. adjusting the bolt; 19. heat dissipation holes; 20. a dust screen; 21. a universal wheel; 22. a liquid level sensor; 23. and (4) a water inlet pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, in embodiment 1 of the invention, a gas extraction device at an upper corner of a coal mining working face of a coal mine and an extraction method thereof comprise an extraction box 1 and a base 2, wherein the base 2 is fixedly connected to the lower surface of the extraction box 1, a first partition plate 3 and a second partition plate 4 are sequentially arranged on the inner wall of the extraction box 1 from top to bottom, an extraction cavity 5 is arranged above the first partition plate 3, a ventilation cavity 6 is arranged above the second partition plate 4, a humidification cavity 7 is arranged below the second partition plate 4, an extraction device 8 and a dust removal device 9 are arranged inside the extraction cavity 5, a ventilation device 10 and a filtering device 11 are arranged inside the ventilation cavity 6, a humidification device 12 is arranged inside the humidification cavity 7, the dust removal device 9 and the humidification device 12 are cooperatively arranged, the dust removal device 9 can perform secondary filtration and dust removal on gas introduced into the extraction cavity 5, the dust impurities are prevented from being mixed into the gas outlet pipe 14 and discharged, so that the purity of extracted gas is improved, meanwhile, the dust impurities attached to the outer surface of the filter plate 901 can be conveniently cleaned, the humidifying device 12 can spray water in the water storage tank 1201 through the atomizing nozzle 1205 to humidify the environment of the upper corner, dust at the upper corner is prevented from being raised during ventilation, the safety of coal mining work is improved, the driving device 13 is arranged on the front surface of the extraction box 1, the gas outlet pipe 14 is arranged on one side of the extraction box 1, the gas inlet pipe 15 is arranged below the gas outlet pipe 14, the gas at the upper corner can be extracted into the extraction cavity 5 after being primarily filtered by the extraction device 8 through the matching arrangement of the extraction cavity 5, the ventilation cavity 6, the ventilation device 10, the filtering device 11, the driving device 13, the gas outlet pipe 14 and the gas inlet pipe 15, and finally the gas outlet pipe 14 is used for guiding and collecting, the second gas transmission pipes 803 simultaneously extract gas, so that the gas extraction efficiency is improved, the driving device 13 drives the ventilation device 10 to work, the outside air introduced into the ventilation cavity 6 from the gas inlet pipe 15 is filtered, humidified and discharged, ventilation and air exchange of the upper corner are realized, the air at the upper corner is prevented from being too thin, and the danger of gas explosion is reduced.

In embodiment 2 of the invention, the gas extraction device for the upper corner of the coal mining working face of the coal mine and the extraction method thereof comprise an extraction box 1 and a base 2, wherein the base 2 is fixedly connected to the lower surface of the extraction box 1, a first partition plate 3 and a second partition plate 4 are sequentially arranged on the inner wall of the extraction box 1 from top to bottom, an extraction cavity 5 is arranged above the first partition plate 3, a ventilation cavity 6 is arranged above the second partition plate 4, a humidification cavity 7 is arranged below the second partition plate 4, an extraction device 8 and a dust removal device 9 are arranged inside the extraction cavity 5, a ventilation device 10 and a filtering device 11 are arranged inside the ventilation cavity 6, a humidification device 12 is arranged inside the humidification cavity 7, a driving device 13 is arranged on the front surface of the extraction box 1, an air outlet pipe 14 is arranged on one side of the extraction box 1, and an air inlet pipe 15 is arranged below the air outlet pipe 14;

among them, the difference from example 1 is: the extraction device 8 comprises an air pump 801, a first air pipe 802, a second air pipe 803 and a filtering plug 804, wherein the upper surface of the first partition plate 3 is fixedly connected with the air pump 801, the first air pipe 802 is arranged on two sides of the air pump 801, the second air pipe 803 is arranged on one side of the first air pipe 802, and the filtering plug 804 is arranged at an air inlet of the second air pipe 803; through the arrangement of the air pump 801, the first air pipe 802, the second air pipe 803 and the filtering plug 804, gas at the upper corner can be pumped into the second air pipe 803 after being primarily filtered by the filtering plug 804 by the air pump 801, the gas purity is primarily improved, and the extraction efficiency is improved, the dust removal device 9 comprises a filter plate 901, an air vent 902, a movable plate 903, an insert rod 904, a movable rod 905 and a push handle 906, the middle part of the upper surface of the first partition plate 3 is fixedly connected with the filter plate 901, the upper surface of the filter plate 901 is fixedly connected with the inner top wall of the extraction box 1, the side surface of the filter plate 901 is provided with the air vent 902, one side of the filter plate 901 is provided with the movable plate 903, one side of the movable plate 903 is fixedly connected with the insert rod 904, the other side of the movable plate 903 is fixedly connected with the movable rod 905; through the arrangement of the filter plate 901, the vent hole 902, the movable plate 903, the inserting rod 904, the movable rod 905 and the pushing handle 906, secondary filtering and dust removal can be carried out on gas pumped into the extraction cavity 5, the pushing handle 906 is utilized to push the movable rod 905, the inserting rod 904 is inserted into the vent hole 902 of the movable plate 903, and therefore dust and impurities in the vent hole 902 can be cleaned; through the arrangement of the driven gear 1001, the rotating rod 1002, the exhaust fan 1003, the dust filter 1004 and the ventilation hood 1005, the driven gear 1101 can be used for driving the rotating rod 1002 to enable the exhaust fan 1003 to rotate for exhausting air, ventilation and air exchange of upper corners are achieved, dust and impurities are prevented from entering the ventilation cavity 6, the filtering device 11 comprises a filtering box 1101, a condensing plate 1102, an activated carbon plate 1103, filter cotton 1104 and quartz sand 1105, the upper surface of the second partition plate 4 is fixedly connected with the filtering box 1101, the condensing plate 1102, the activated carbon plate 1103, the filter cotton 1104 and the quartz sand 1105 are sequentially arranged in the filtering box 1101 from left to right, and one side of the filtering box 1101 is communicated with the air inlet pipe 15; through the arrangement of the filter box 1101, the condensing plate 1102, the activated carbon plate 1103, the filter cotton 1104 and the quartz sand 1105, the air introduced into the ventilation cavity 6 can be filtered, deodorized and condensed, the air temperature is reduced, and the gas explosion is avoided, the humidifying device 12 comprises a water storage tank 1201, a water pump 1202, a first water pipe 1203, a second water pipe 1204 and an atomizing spray head 1205, the inner bottom wall of the extraction box 1 is fixedly connected with the water storage tank 1201, one side of the water storage tank 1201 is provided with the water pump 1202, the water storage tank 1201 is communicated with the water pump 1202 through the first water pipe 1203, one side of the water pump 1202 is provided with the second water pipe 1204, and the water outlet of the second water pipe 1204 is provided with the atomizing spray head 1205; through the arrangement of the water storage tank 1201, the water pump 1202, the first water delivery pipe 1203, the second water delivery pipe 1204 and the atomizing spray heads 1205, the air environment at the upper corners can be humidified, dust emission during ventilation is avoided, and the possibility of gas explosion is reduced, the driving device 13 comprises a motor box 1301, a driving motor 1302, sound-absorbing sponge 1303, a driving gear 1304 and a toothed belt 1305, the front of the extraction box 1 is fixedly connected with the motor box 1301, the driving motor 1302 is arranged inside the motor box 1301, the sound-absorbing sponge 1303 is arranged on the outer surface of the driving motor 1302, the output end of the driving motor 1302 is fixedly connected with the driving gear 1304, and the outer surface of the driving gear 1304 is movably connected with the toothed belt 1305; through the arrangement of the motor box 1301, the driving motor 1302, the sound-absorbing sponge 1303, the driving gear 1304 and the toothed belt 1305, the driving gear 1304 can be driven by the driving motor 1302, and then the toothed belt 1305 is driven to simultaneously drive the plurality of driven gears 1001 to rotate, so that the ventilation efficiency is improved, the upper surface of the extraction box 1 is fixedly connected with a fixed rod 16, the top end of the fixed rod 16 is movably connected with an illuminating lamp 17, and the front surface of the fixed rod 16 is movably connected with an adjusting bolt 18; through the matching arrangement of the fixing rod 16, the illuminating lamp 17 and the adjusting bolt 18, the illuminating lamp 17 can conveniently illuminate the upper corner, and the coal mining work is convenient to carry out, the fixing rod 16 and the adjusting bolt 18 can conveniently adjust the illuminating angle of the illuminating lamp 17, the front surface of the motor case 1301 is provided with a heat dissipation hole 19, and a dust screen 20 is arranged inside the heat dissipation hole 19; through louvre 19 and the setting of dust screen 20, louvre 19 can be with the heat effluvium that driving motor 1302 during operation produced, avoid driving motor 1302 high temperature, prolong its life, inside dust screen 20 can avoid dust impurity to get into motor case 1301, the four corners fixedly connected with universal wheel 21 of base 2 lower surface, the interior roof fixedly connected with level sensor 22 of storage water tank 1201, one side of storage water tank 1201 is provided with inlet tube 23, through universal wheel 21, level sensor 22 and inlet tube 23's setting, universal wheel 21 can conveniently remove whole device, level sensor 22 can respond to the liquid level in the storage water tank 1201, and conveniently in time utilize inlet tube 23 to add water.

The working principle is as follows: firstly, a driving motor 1302 is started, a driving gear 1304 drives a plurality of driven gears 1001 to rotate through a toothed belt 1305 at the same time, so that a suction fan 1003 is driven to rotate, air in an air inlet pipe 15 is discharged after being filtered by a filtering device 11, an air pump 801 is started again, gas is sucked from a first air conveying pipe 802 and a second air conveying pipe 803, primary filtering is carried out by a filtering plug 804 and finally discharged into an air outlet pipe 14 for collection and utilization, so that ventilation and air exchange of an upper corner are realized, the air of the upper corner is prevented from being too thin, a pushing hand 906 is pushed, a movable plate 903 drives an inserting rod 904 to be inserted into an air vent 902, cleaning of a filter plate 901 can be realized, dust impurities are prevented from blocking the air vent 902 to prevent gas from being extracted, water in a water storage tank 1201 is pumped by a water pump 1202 and is sprayed out through an atomizing nozzle 1205 to humidify the air environment of the upper corner, and dust is prevented from generating, the possibility of gas explosion is reduced.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the use of the verb "comprise a" to define an element does not exclude the presence of another, same element in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a coal mine coal face upper corner gas drainage device and drainage method thereof, includes drainage case (1) and base (2), its characterized in that: the lower surface of the extraction box (1) is fixedly connected with a base (2), the inner wall of the extraction box (1) is sequentially provided with a first partition plate (3) and a second partition plate (4) from top to bottom, an extraction cavity (5) is arranged above the first partition plate (3), a ventilation cavity (6) is arranged above the second partition plate (4), a humidifying cavity (7) is arranged below the second clapboard (4), an extraction device (8) and a dust removal device (9) are arranged in the extraction cavity (5), a ventilation device (10) and a filtering device (11) are arranged in the ventilation cavity (6), a humidifying device (12) is arranged in the humidifying cavity (7), a driving device (13) is arranged on the front surface of the extraction box (1), an air outlet pipe (14) is arranged on one side of the extraction box (1), and an air inlet pipe (15) is arranged below the air outlet pipe (14).

2. The coal mine coal face upper corner gas extraction device and the coal mine coal face upper corner gas extraction method according to claim 1 are characterized in that: the extraction device (8) comprises an air pump (801), a first air conveying pipe (802), a second air conveying pipe (803) and a filtering plug (804), wherein the air pump (801) is fixedly connected to the upper surface of the first partition plate (3), the first air conveying pipe (802) is arranged on two sides of the air pump (801), the second air conveying pipe (803) is arranged on one side of the first air conveying pipe (802), and the filtering plug (804) is arranged at an air inlet of the second air conveying pipe (803).

3. The coal mine coal face upper corner gas extraction device and the coal mine coal face upper corner gas extraction method according to claim 1 are characterized in that: the dust removal device (9) comprises a filter plate (901), vent holes (902), a movable plate (903), an insert rod (904), a movable rod (905) and a pushing handle (906), wherein the middle part of the upper surface of the first partition plate (3) is fixedly connected with the filter plate (901), the upper surface of the filter plate (901) is fixedly connected with the inner top wall of the extraction box (1), the vent holes (902) are formed in the side surface of the filter plate (901), the movable plate (903) is arranged on one side of the filter plate (901), the insert rod (904) is fixedly connected to one side of the movable plate (903), the movable rod (905) is fixedly connected to the other side of the movable plate (903), and the pushing handle (906) is fixedly connected to one end, far away from the movable plate (903), of the.

4. The coal mine coal face upper corner gas extraction device and the coal mine coal face upper corner gas extraction method according to claim 1 are characterized in that: ventilation unit (10) include driven gear (1001), bull stick (1002), extraction fan (1003), dust filtration cover (1004) and draft hood (1005), the inside of draft chamber (6) is provided with driven gear (1001), one side fixedly connected with bull stick (1002) of driven gear (1001), one end fixedly connected with extraction fan (1003) that driven gear (1001) were kept away from in bull stick (1002), one side of extraction fan (1003) is provided with dust filtration cover (1004), the lateral wall of draft chamber (6) is provided with draft hood (1005).

5. The coal mine coal face upper corner gas extraction device and the coal mine coal face upper corner gas extraction method according to claim 1 are characterized in that: the filtering device (11) comprises a filtering box (1101), a condensing plate (1102), an activated carbon plate (1103), filter cotton (1104) and quartz sand (1105), wherein the filtering box (1101) is fixedly connected to the upper surface of the second partition plate (4), the condensing plate (1102), the activated carbon plate (1103), the filter cotton (1104) and the quartz sand (1105) are sequentially arranged in the filtering box (1101) from left to right, and one side of the filtering box (1101) is communicated with an air inlet pipe (15).

6. The coal mine coal face upper corner gas extraction device and the coal mine coal face upper corner gas extraction method according to claim 1 are characterized in that: the humidifying device (12) comprises a water storage tank (1201), a water pump (1202), a first water pipe (1203), a second water pipe (1204) and an atomizing spray head (1205), wherein the inner bottom wall of the extraction box (1) is fixedly connected with the water storage tank (1201), the water pump (1202) is arranged on one side of the water storage tank (1201), the water storage tank (1201) is communicated with the water pump (1202) through the first water pipe (1203), the second water pipe (1204) is arranged on one side of the water pump (1202), and the atomizing spray head (1205) is arranged at a water outlet of the second water pipe (1204).

7. The coal mine coal face upper corner gas extraction device and the coal mine coal face upper corner gas extraction method according to claim 1 are characterized in that: the driving device (13) comprises a motor box (1301), a driving motor (1302), sound-absorbing sponge (1303), a driving gear (1304) and a toothed belt (1305), wherein the motor box (1301) is fixedly connected to the front face of the extraction box (1), the driving motor (1302) is arranged inside the motor box (1301), the sound-absorbing sponge (1303) is arranged on the outer surface of the driving motor (1302), the driving gear (1304) is fixedly connected to the output end of the driving motor (1302), and the toothed belt (1305) is movably connected to the outer surface of the driving gear (1304).

8. The coal mine coal face upper corner gas extraction device and the coal mine coal face upper corner gas extraction method according to claim 1 are characterized in that: the upper surface of the extraction box (1) is fixedly connected with a fixing rod (16), the top end of the fixing rod (16) is movably connected with an illuminating lamp (17), and the front surface of the fixing rod (16) is movably connected with an adjusting bolt (18).

9. The coal mine coal face upper corner gas extraction device and the coal mine coal face upper corner gas extraction method according to claim 7, wherein the extraction method comprises the following steps: the front of the motor case (1301) is provided with a heat dissipation hole (19), and a dust screen (20) is arranged inside the heat dissipation hole (19).

10. The coal mine coal face upper corner gas extraction device and the coal mine coal face upper corner gas extraction method according to claim 6, wherein the extraction method comprises the following steps: the four corners of the lower surface of the base (2) are fixedly connected with universal wheels (21), the inner top wall of the water storage tank (1201) is fixedly connected with a liquid level sensor (22), and one side of the water storage tank (1201) is provided with a water inlet pipe (23).