阅读说明：本技术 一种煤矿瓦斯提取设备及其提取工艺 (Coal mine gas extraction equipment and extraction process thereof ) 是由 王强 于 2021-07-23 设计创作，主要内容包括：本发明公开了瓦斯提取技术领域的一种煤矿瓦斯提取设备,包括箱体,箱体上端设有进料口,箱体内上端设有电动推杆,电动推杆输出端固定设有L形板,L形板下端设有半漏板,半漏板内滑动设有密封板,密封板左侧端固定设有第一气弹簧；进料机构右侧且位于箱体外侧端固定设有气吹机构；进料机构下端设有抛翻机构；抛翻机构下端固定设有下滤板,下滤板下端设有翻折机构；翻折机构下端设有氮气机构,氮气机构右侧抽取机构；箱体左侧下端设有用于煤炭的出料口；通过以上结构的设置可以解决现有的设备由于原煤中瓦斯存在自由扩散,不易控制瓦斯的流向进行集中的提取收集,从而在提取时会出现提取纯度低,提取效率低,造成瓦斯浪费的问题。(The invention discloses coal mine gas extraction equipment in the technical field of gas extraction, which comprises a box body, wherein a feed inlet is formed in the upper end of the box body, an electric push rod is arranged at the upper end in the box body, an L-shaped plate is fixedly arranged at the output end of the electric push rod, a half leak plate is arranged at the lower end of the L-shaped plate, a sealing plate is arranged in the half leak plate in a sliding manner, and a first gas spring is fixedly arranged at the left side end of the sealing plate; an air blowing mechanism is fixedly arranged on the right side of the feeding mechanism and positioned at the outer side end of the box body; the lower end of the feeding mechanism is provided with a throwing and turning mechanism; the lower end of the throwing and turning mechanism is fixedly provided with a lower filter plate, and the lower end of the lower filter plate is provided with a turning mechanism; the lower end of the turnover mechanism is provided with a nitrogen mechanism, and the right side of the nitrogen mechanism is provided with an extraction mechanism; a discharge hole for coal is formed in the lower end of the left side of the box body; through the setting of above structure can solve current equipment because there is free diffusion in the raw coal gas, the flow direction of difficult control gas carries out concentrated extraction and collects to can appear when drawing that the purity is low, extraction efficiency is low, causes the extravagant problem of gas.)

1. The utility model provides a colliery gas extraction equipment, includes box (1), its characterized in that: the feeding device is characterized in that a feeding hole (2) is formed in the upper end of the box body (1), an electric push rod (3) is arranged on the inner wall of the inner upper portion of the box body (1) in the horizontal direction, an L-shaped plate (4) is fixedly arranged at the output end of the electric push rod (3), the L-shaped plate (4) is slidably arranged in a first sliding groove (5), a half leakage plate (6) is arranged at the lower end of the L-shaped plate (4), the half leakage plate (6) is fixedly arranged in the box body (1), a sealing plate (7) is slidably arranged in the half leakage plate (6), a first air spring (8) is fixedly arranged at the left end of the sealing plate (7), and the left end of the first air spring (8) is fixedly arranged on the lower end face of the half leakage plate (6); an air blowing mechanism convenient for gas extraction is fixedly arranged on the right side of the feeding mechanism and positioned at the outer side end of the box body (1); the lower end of the feeding mechanism is provided with a throwing mechanism for throwing coal; the lower end of the throwing and turning mechanism is fixedly provided with a lower filter plate (9), and the lower end of the lower filter plate (9) is provided with a turning mechanism which can reduce the space and is convenient for extracting gas; the lower end of the turnover mechanism is provided with a nitrogen mechanism for further and rapidly extracting gas, and the right side of the nitrogen mechanism and the right side end of the box body (1) are fixedly provided with an extraction mechanism for gas purification and nitrogen recycling; the coal conveying device is characterized in that a discharge port (10) for coal transportation is arranged at the lower end of the left side of the box body (1), a sliding plate (11) is arranged at the position of the discharge port (10) in a sliding mode, a first steel wire rope (12) is fixedly arranged on the right side of the sliding plate (11), the upper end of the first steel wire rope (12) is fixedly arranged on the nitrogen mechanism, and a return spring (13) is fixedly arranged on the right side of the sliding plate (11).

2. A coal mine gas extraction plant as claimed in claim 1, wherein: extraction mechanism includes first pipeline (14), first pipeline (14) left side end intercommunication box (1) rear end, be equipped with air extractor (15) on first pipeline (14), the right side end of first pipeline (14) is fixed and is equipped with adsorption equipment (16), adsorption equipment (16) upper end is fixed and is equipped with gas storage box (17), gas storage box (17) are fixed to be established box (1) right side end, gas storage box (17) upper end is fixed and is equipped with air extraction equipment (18), gas storage box (17) lower extreme is equipped with intake pipe (19), intake pipe (19) left end intercommunication nitrogen mechanism, intake pipe (19) right-hand member intercommunication nitrogen gas pipeline (20).

3. A coal mine gas extraction plant as claimed in claim 2, wherein: the turnover mechanism comprises a long inclined plate (21), the long inclined plate (21) is rotatably arranged at the right side end in the box body (1) and is arranged in a sliding manner at the rear end face in the box body (1) in the first sliding groove (5), a second steel wire rope (22) is fixedly arranged on the long inclined plate (21), the other end of the second steel wire rope (22) is fixedly arranged on the L-shaped plate (4), the second steel wire rope (22) is arranged in the first sliding groove (5), a short inclined plate (23) is arranged at the upper end of the left side of the long inclined plate (21), and the short inclined plate (23) is arranged in a sliding manner in a second sliding groove (24) formed in the rear end face in the box body (1).

4. A coal mine gas extraction plant as claimed in claim 3, wherein: the nitrogen mechanism comprises a first cylinder (25), the first cylinder (25) is fixedly arranged at the right side end in the box body (1), a first disc (26) is arranged in the first cylinder (25) in a sliding mode, a second air spring (27) is fixedly arranged on the right side end face of the first disc (26), a pull rope (28) is fixedly arranged at the right side end of the first disc (26), and the left end of the pull rope (28) is fixedly arranged on the long inclined plate (21); a hose (29) is fixedly arranged at the upper end of the first barrel (25), a first blowing box (30) is fixedly arranged at the other end of the hose (29), and the first blowing box (30) is fixedly arranged on the upper end face of the long inclined plate (21); the lower end of the first cylinder (25) is provided with the air inlet pipe (19); the pull rope (28) is also fixedly connected with the first steel wire rope (12).

5. A coal mine gas extraction plant as claimed in claim 4, wherein: the throwing turnover mechanism comprises an upper filter plate (31), the upper filter plate (31) is rotated and arranged on the right side in the box body (1), the upper filter plate (31) is slid on the left side and arranged in a third sliding groove (32), a third air spring (33) is fixedly arranged on the upper end face of the upper filter plate (31), the third air spring (33) is located in the third sliding groove (32), a third steel wire rope (34) is fixedly arranged on the upper filter plate (31), the upper end of the third steel wire is fixedly arranged on the L-shaped plate (4), an adsorption block (35) is arranged on the upper end of the upper filter plate (31), and the adsorption block (35) is fixedly arranged on the lower end face of the half-leakage plate (6).

6. A coal mine gas extraction plant as claimed in claim 1, wherein: the air blowing mechanism comprises a second cylinder (36), the second cylinder (36) is fixedly arranged on the right end face of the box body (1), a second disc (37) is arranged in the second cylinder (36) in a sliding mode, a fourth air spring (38) is fixedly arranged on the right end face of the second disc (37), a push rod (39) is fixedly arranged on the left end face of the second disc (37), a push plate (40) is arranged at the left end of the push rod (39), and the push plate (40) is fixedly arranged on the lower end face of the sealing plate (7); a second pipeline (41) is arranged on the second barrel (36), a second blowing box (42) is fixedly arranged at the left end of the second pipeline (41), and the second blowing box (42) is fixedly arranged on the end face of the inner right side of the box body (1); and a third pipeline (43) is arranged at the lower end of the second cylinder (36), and the left end part of the third pipeline (43) is fixedly communicated with the right end surface of the box body (1).

7. A coal mine gas extraction process suitable for use in a coal mine gas extraction plant as claimed in any one of claims 1 to 6, wherein: the coal mine gas extraction process comprises the following specific steps:

the method comprises the following steps: firstly, coal is fed into the box body (1) through a feeding hole (2);

step two: then, throwing and turning over the coal through the throwing and turning over mechanism, so that the larger coal is broken when falling down, and gas in coal gaps is blown out;

step three: then introducing nitrogen to extrude the gas, so that the gas floats upwards;

step four: and finally, extracting the gas in the box body (1) into the extraction mechanism for screening treatment, and finally collecting the gas by using gas extraction equipment (18), wherein the nitrogen is continuously recycled.

Technical Field

The invention relates to the technical field of gas extraction, in particular to coal mine gas extraction equipment and an extraction process thereof.

Background

The gas is formed by decomposing cellulose and organic matters under the action of anaerobic bacteria at the initial stage of stacking ancient plants into coal. In a high-temperature and high-pressure environment, gas is continuously generated due to physical and chemical actions while coal is formed. The gas is colorless and odorless, but the flavor similar to apple can be smelled sometimes, because the aromatic hydrocarbon gas and the gas are simultaneously gushed out. The relative density of gas to air is 0.554, the density of gas is 0.716kg/m3 under the standard state, the permeability of gas is 1.6 times of air, it is difficult to dissolve in water, it can not support combustion and can not maintain breath, when it reaches a certain concentration, it can suffocate people due to oxygen deficiency, and can produce combustion or explosion, the gas exists in the coal or surrounding rock in free state and absorption state.

In the prior art, because gas exists in cracks and pores of coal bodies or surrounding rocks in a free gas state, a large amount of gas can be carried in coal after mine raw coal is excavated, and meanwhile, because the mine is sealed and the air circulation is poor, if the gas in the raw coal is not extracted in time, the concentration of the mine gas is high, and further explosion is easy to occur; in addition, if the produced raw coal contains a large amount of gas, the raw coal can be harmful to human health during processing and use, and meanwhile, the raw coal has the danger of possible explosion during combustion and use; so in order when the coal is mined, reduce the influence of gas to the mining coal, need in time to extract the gas in the coal of mining, because coal can take place to break between the coal piece when mining, so in the gas in the gap between the coal piece can the free diffusion to the mine, because back in diffusing the mine, the space is great, be difficult for obtaining control, thereby greatly increased the degree of difficulty of extracting gas, simultaneously because the gas content in single coal gap is less, a plurality of coal pieces are difficult for gathering together again, lead to unable concentrated extraction gas, thereby can appear when extracting and draw the purity low, extraction efficiency is low, cause the extravagant problem of gas.

Based on the above, the invention designs coal mine gas extraction equipment and an extraction process thereof, so as to solve the problems.

Disclosure of Invention

In order to achieve the purpose, the invention provides the following technical scheme: a coal mine gas extraction device comprises a box body, wherein a feed inlet is formed in the upper end of the box body, an electric push rod is arranged on the inner wall of the upper portion in the box body in the horizontal direction, an L-shaped plate is fixedly arranged at the output end of the electric push rod, the L-shaped plate is arranged in a first sliding groove in a sliding mode, a half leakage plate is arranged at the lower end of the L-shaped plate, the half leakage plate is fixedly arranged in the box body, a sealing plate is arranged in the half leakage plate in a sliding mode, a first gas spring is fixedly arranged at the left end of the sealing plate, and the left end of the first gas spring is fixedly arranged on the lower end face of the half leakage plate; an air blowing mechanism convenient for gas extraction is fixedly arranged on the right side of the feeding mechanism and positioned at the outer side end of the box body; the lower end of the feeding mechanism is provided with a throwing mechanism for throwing coal; the lower end of the throwing and turning mechanism is fixedly provided with a lower filter plate, and the lower end of the lower filter plate is provided with a turning mechanism which can reduce the space and is convenient for extracting gas; the lower end of the turnover mechanism is provided with a nitrogen mechanism for further and rapidly extracting gas, and the right side of the nitrogen mechanism and the end at the right side of the box body are fixedly provided with an extraction mechanism for gas purification and nitrogen recycling; the lower end of the left side of the box body is provided with a discharge hole for transferring coal, a sliding plate is arranged at the discharge hole in a sliding mode, a first steel wire rope is fixedly arranged on the right side of the sliding plate, the upper end of the first steel wire rope is fixedly arranged on the nitrogen mechanism, and a reset spring is fixedly arranged on the right side of the sliding plate.

As a further scheme of the invention, the extraction mechanism comprises a first pipeline, the left end of the first pipeline is communicated with the rear side end of the box body, an air extractor is arranged on the first pipeline, adsorption equipment is fixedly arranged at the right end of the first pipeline, a gas storage box is fixedly arranged at the upper end of the adsorption equipment, the gas storage box is fixedly arranged at the right end of the box body, air extraction equipment is fixedly arranged at the upper end of the gas storage box, an air inlet pipe is arranged at the lower end of the gas storage box, the left end of the air inlet pipe is communicated with the nitrogen mechanism, and the right end of the air inlet pipe is communicated with a nitrogen pipeline.

As a further aspect of the present invention, the folding mechanism includes a long sloping plate, the long sloping plate is rotatably disposed at a right side end of the box body and slidably disposed in the first chute on a rear end face of the box body, a second wire rope is fixedly disposed on the long sloping plate, the other end of the second wire rope is fixedly disposed on the L-shaped plate, the second wire rope is disposed in the first chute, a short sloping plate is disposed at an upper end of a left side of the long sloping plate, and the short sloping plate is slidably disposed in a second chute disposed on the rear end face of the box body.

As a further scheme of the invention, the nitrogen mechanism comprises a first cylinder, the first cylinder is fixedly arranged at the right side end in the box body, a first disc is slidably arranged in the first cylinder, a second gas spring is fixedly arranged on the right side end face of the first disc, a pull rope is fixedly arranged at the right side end of the first disc, and the left end part of the pull rope is fixedly arranged on the long inclined plate; a hose is fixedly arranged at the upper end of the first cylinder, a first blowing box is fixedly arranged at the other end of the hose, and the first blowing box is fixedly arranged on the upper end face of the long inclined plate; the lower end of the first cylinder is provided with the air inlet pipe; the stay rope is also fixedly connected with the first steel wire rope.

As a further scheme of the invention, the throwing and turning mechanism comprises an upper filter plate, the upper filter plate is rotatably arranged on the right side in the box body, the left side of the upper filter plate is slidably arranged in a third chute, a third air spring is fixedly arranged on the upper end surface of the upper filter plate and is positioned in the third chute, a third steel wire rope is also fixedly arranged on the upper filter plate, the upper end of the third steel wire is fixedly arranged on the L-shaped plate, an adsorption block is arranged on the upper end of the upper filter plate, and the adsorption block is fixedly arranged on the lower end surface of the half-leakage plate.

As a further scheme of the invention, the air blowing mechanism comprises a second cylinder, the second cylinder is fixedly arranged on the right end face of the box body, a second disc is arranged in the second cylinder in a sliding manner, a fourth air spring is fixedly arranged on the right end face of the second disc, a push rod is fixedly arranged on the left end face of the second disc, a push plate is arranged at the left end of the push rod, and the push plate is fixedly arranged on the lower end face of the sealing plate; a second pipeline is arranged on the second barrel, a second air blowing box is fixedly arranged at the left end of the second pipeline, and the second air blowing box is fixedly arranged on the right end face in the box body; and a third pipeline is arranged at the lower end of the second cylinder, and the left end part of the third pipeline is fixedly communicated with the right end face of the box body.

A coal mine gas extraction process comprises the following specific steps:

the method comprises the following steps: firstly, coal is fed into the box body through a feed port;

step two: then, throwing and turning over the coal through the throwing and turning over mechanism, so that the larger coal is broken when falling down, and gas in coal gaps is blown out;

step three: then introducing nitrogen to extrude the gas, so that the gas floats upwards;

step four: and finally, pumping the gas in the box body into the pumping mechanism for screening treatment, finally collecting the gas by using gas pumping equipment, and continuously recycling the nitrogen.

Compared with the prior art, the invention has the beneficial effects that:

1. through the arrangement of the purification mechanism, when the electric push rod drives the L-shaped plate to slide rightwards in the first sliding groove, the air extractor is started to extract gas from the box body through the first pipeline at the moment, then the extracted gas enters the adsorption equipment, and as a small amount of nitrogen is accompanied in the gas, in order to guarantee the purity of the extracted gas, the gas enters the gas storage box after passing through the adsorption equipment and being processed by the air extraction equipment, and is finally extracted and collected through the air extraction equipment; simultaneously in order to reduce the waste of nitrogen gas, time nitrogen gas can circulate and use to the gas storage box lower extreme intercommunication has the intake pipe, thereby is favorable to the recycling of nitrogen gas, practices thrift economic cost.

2. According to the invention, through the arrangement of the pesticide spraying mechanism, when the L-shaped plate is driven by the electric push rod to slide rightwards in the first chute, the right side end of the long inclined plate rotates clockwise in the box body, then the left end of the long inclined plate pushes the short inclined plate to move upwards in the second chute, and the space at the upper ends of the long inclined plate and the short inclined plate is sealed due to the contact of the long inclined plate and the short inclined plate, and at the moment, due to the clockwise turning of the long inclined plate and the upward movement of the short inclined plate, the space at the upper ends of the long inclined plate and the short inclined plate is compressed, so that the upward movement of gas is favorably collected, the rapid extraction of gas is improved, the extraction time is shortened, and the extraction efficiency is improved.

3. According to the invention, through the arrangement of the cleaning mechanism, when the long inclined plate moves upwards clockwise, the pull rope fixedly connected with the lower end of the long inclined plate is stretched, so that nitrogen is discharged from the first air blowing box, and at the moment, the space at the upper ends of the long inclined plate and the short inclined plate is sealed, and meanwhile, the density of the nitrogen is higher than that of gas, so that the gas obtained in the space at the upper ends of the long inclined plate and the short inclined plate is further extruded upwards, and the gas is conveniently extracted and collected.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic sectional view of the whole apparatus of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of the structure at B in FIG. 1 according to the present invention;

FIG. 4 is an enlarged view of the structure at C of FIG. 1 according to the present invention;

FIG. 5 is an enlarged view of the structure at D in FIG. 1 according to the present invention;

FIG. 6 is an enlarged view of the structure at E in FIG. 1 according to the present invention;

FIG. 7 is a rear view of the overall apparatus of the present invention;

FIG. 8 is an enlarged view of the structure at F in FIG. 7 according to the present invention;

FIG. 9 is a process flow diagram of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

the device comprises a box body 1, a feeding hole 2, an electric push rod 3, an L-shaped plate 4, a first chute 5, a semi-leakage plate 6, a sealing plate 7, a first air spring 8, a lower filter plate 9, a discharging hole 10, a sliding plate 11, a first steel wire rope 12, a return spring 13, a first pipeline 14, an air pump 15, adsorption equipment 16, an air storage box 17, air extraction equipment 18, an air inlet pipe 19, a nitrogen pipeline 20, a long inclined plate 21, a second steel wire rope 22, a short inclined plate 23, a second chute 24, a first cylinder 25, a first disc 26, a second air spring 27, a pull rope 28, a hose 29, a first air blowing box 30, an upper filter plate 31, a third chute 32, a third air spring 33, a third steel wire rope 34, an adsorption block 35, a second cylinder 36, a second disc 37, a fourth air spring 38, a push rod 39, a push plate 40, a second pipeline 41, a second air blowing box 42 and a third pipeline 43.

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. 1-9, the present invention provides a technical solution: a coal mine gas extraction device comprises a box body 1, wherein a feed inlet 2 is formed in the upper end of the box body 1, an electric push rod 3 is arranged on the inner wall of the upper portion in the box body 1 in the horizontal direction, an L-shaped plate 4 is fixedly arranged at the output end of the electric push rod 3, the L-shaped plate 4 is slidably arranged in a first sliding groove 5, a half leakage plate 6 is arranged at the lower end of the L-shaped plate 4, the half leakage plate 6 is fixedly arranged in the box body 1, a sealing plate 7 is slidably arranged in the half leakage plate 6, a first air spring 8 is fixedly arranged at the left end of the sealing plate 7, and the left end of the first air spring 8 is fixedly arranged on the lower end face of the half leakage plate 6; an air blowing mechanism convenient for gas extraction is fixedly arranged on the right side of the feeding mechanism and positioned on the outer side end of the box body 1; the lower end of the feeding mechanism is provided with a throwing mechanism for throwing coal; the lower end of the throwing and turning mechanism is fixedly provided with a lower filter plate 9, and the lower end of the lower filter plate 9 is provided with a turning mechanism which can reduce the space and is convenient for extracting gas; the lower end of the turnover mechanism is provided with a nitrogen mechanism for further and rapidly extracting gas, the right side of the nitrogen mechanism is fixedly provided with an extraction mechanism for gas purification and nitrogen recycling, and the extraction mechanism is positioned at the right side end of the box body 1; the lower extreme of 1 left side of box is equipped with the discharge gate 10 that is used for coal to transport, and discharge gate 10 department slides and is equipped with sliding plate 11, and the fixed first wire rope 12 that is equipped with in sliding plate 11 right side, fixed the establishing on nitrogen gas mechanism in first wire rope 12 upper end, and the fixed reset spring 13 that is equipped with in sliding plate 11 right side.

As a further scheme of the invention, the extraction mechanism comprises a first pipeline 14, the left side end of the first pipeline 14 is communicated with the rear side end of the box body 1, an air extractor 15 is arranged on the first pipeline 14, an adsorption device 16 is fixedly arranged at the right side end of the first pipeline 14, an air storage box 17 is fixedly arranged at the upper end of the adsorption device 16, the air storage box 17 is fixedly arranged at the right side end of the box body 1, an air extraction device 18 is fixedly arranged at the upper end of the air storage box 17, an air inlet pipe 19 is arranged at the lower end of the air storage box 17, the left end of the air inlet pipe 19 is communicated with the nitrogen mechanism, and the right end of the air inlet pipe 19 is communicated with a nitrogen pipeline 20; when the gas storage box is used, when the electric push rod 3 drives the L-shaped plate 4 to slide rightwards in the first sliding groove 5 (shown by combining the figures 1, 7 and 8), the air extractor 15 is started to extract gas from the box body 1 through the first pipeline 14 at the moment, then the extracted gas enters the adsorption equipment 16, and as a small amount of nitrogen is accompanied in the gas, in order to guarantee the purity of the extracted gas, the gas passes through the adsorption equipment 16, is processed by the air extraction equipment 18 and then enters the gas storage box 17, and finally is extracted and collected through the air extraction equipment 18; simultaneously in order to reduce the waste of nitrogen gas, nitrogen gas can carry out recycle during the time to gas storage box 17 lower extreme intercommunication has intake pipe 19, thereby is favorable to the recycle of nitrogen gas, practices thrift economic cost.

As a further scheme of the invention, the turnover mechanism comprises a long inclined plate 21, the long inclined plate 21 is rotatably arranged at the right side end in the box body 1 and is slidably arranged in a first chute 5 at the rear end face in the box body 1, a second steel wire rope 22 is fixedly arranged on the long inclined plate 21, the other end of the second steel wire rope 22 is fixedly arranged on the L-shaped plate 4, the second steel wire rope 22 is positioned in the first chute 5, a short inclined plate 23 is arranged at the upper end of the left side of the long inclined plate 21, and the short inclined plate 23 is slidably arranged in a second chute 24 arranged on the rear end face in the box body 1; during the use, when electric putter 39 drives L shaped plate 4 and to the right slip in first spout 5 (combine fig. 1, fig. 5 show), L shape left end fixedly connected's second wire rope 22 will stimulate long swash plate 21 and slide from the bottom up in first spout 5, long swash plate 21 right side end carries out clockwise rotation in box 1 simultaneously, long swash plate 21 left end will promote short swash plate 23 and upwards move in second spout 24 after that, because long swash plate 21 and short swash plate 23 contact, thereby make the space in the upper end of long swash plate 21 and short swash plate 23 sealed, at this moment because the clockwise upset of long swash plate 21 and the upward movement of short swash plate 23, thereby make the space in the upper end of long swash plate 21 and short swash plate 23 compressed, and then be favorable to making gas upwards move and obtain the collection, thereby improve the quick extraction to gas, shortened the extraction time, improved extraction efficiency.

As a further scheme of the invention, the nitrogen mechanism comprises a first cylinder 25, the first cylinder 25 is fixedly arranged at the right side end in the box body 1, a first disc 26 is arranged in the first cylinder 25 in a sliding manner, a second air spring 27 is fixedly arranged at the right side end face of the first disc 26, a pull rope 28 is fixedly arranged at the right side end of the first disc 26, and the left end part of the pull rope 28 is fixedly arranged on the long inclined plate 21; the upper end of the first cylinder 25 is fixedly provided with a hose 29, the other end of the hose 29 is fixedly provided with a first blowing box 30, and the first blowing box 30 is fixedly arranged on the upper end surface of the long inclined plate 21; the lower end of the first cylinder 25 is provided with an air inlet pipe 19; the pull rope 28 is also fixedly connected with the first steel wire rope 12; when the gas extraction device is used, when the long inclined plate 21 moves upwards clockwise (as shown in fig. 1 and 5), the pull rope 28 fixedly connected with the lower end of the long inclined plate 21 is stretched, so that the pull rope 28 pulls the first disc 26 to move leftwards in the first cylinder 25, at the moment, the second gas spring 27 is stretched (the second gas spring 27 plays a role in resetting the first disc 26), so that nitrogen in the first cylinder 25 is extruded into the hose 29, then the nitrogen enters the first blowing box 30 and is finally discharged from the first blowing box 30, and at the moment, because the space at the upper ends of the long inclined plate 21 and the short inclined plate 23 is sealed, and because the density of the nitrogen is higher than that of gas, the gas obtained in the space at the upper ends of the long inclined plate 21 and the short inclined plate 23 is further extruded upwards, so that the gas extraction and collection work is facilitated; when the long inclined plate 21 moves counterclockwise downward, the second gas spring 27 contracts at this time, so that the first circular plate moves rightward, thereby drawing nitrogen gas into the first cylinder 25 through the gas inlet pipe 19 for the next cycle.

As a further scheme of the invention, the throwing and turning mechanism comprises an upper filter plate 31, the upper filter plate 31 is rotatably arranged on the right side in the box body 1, the left side of the upper filter plate 31 is slidably arranged in a third chute 32, the upper end surface of the upper filter plate 31 is fixedly provided with a third gas spring 33, the third gas spring 33 is positioned in the third chute 32, the upper filter plate 31 is also fixedly provided with a third steel wire rope 34, the upper end of the third steel wire rope is fixedly arranged on the L-shaped plate 4, the upper end of the upper filter plate 31 is provided with an adsorption block 35, and the adsorption block 35 is fixedly arranged on the lower end surface of the half-leakage plate 6; when the device is used, when the electric push rod 3 drives the L-shaped plate 4 to slide rightward in the first chute 5 (as shown in fig. 1 and 4), the third steel wire rope 34 fixedly connected to the left end surface of the L-shaped plate 4 pulls the upper filter plate 31 to slide upward in the third chute 32, and the right end of the upper filter plate 31 rotates clockwise in the box body 1; when the electric push rod 3 moves to the limit position rightwards, the upper end face of the upper filter plate 31 is adsorbed by the adsorption block 35, the third gas spring 33 is compressed (the third gas spring 33 plays a role in resetting the upper filter plate 31), when the electric push rod 3 moves to the limit position leftwards, the adsorption block 35 is powered off and does not adsorb the upper filter plate 31, the upper filter plate 31 is rapidly downwards stressed by the telescopic force of the third gas spring 33, coal on the upper filter plate 31 is emptied and thrown, and then the fallen coal is crushed again, so that gas in the coal block can be blown out, and the gas extraction of the coal block is facilitated.

As a further scheme of the present invention, the air blowing mechanism includes a second cylinder 36, the second cylinder 36 is fixedly arranged on the right end face of the box body 1, a second disc 37 is slidably arranged in the second cylinder 36, a fourth air spring 38 is fixedly arranged on the right end face of the second disc 37, a push rod 39 is fixedly arranged on the left end face of the second disc 37, a push plate 40 is arranged on the left end of the push rod 39, and the push plate 40 is fixedly arranged on the lower end face of the sealing plate 7; a second pipeline 41 is arranged on the second cylinder 36, a second blowing box 42 is fixedly arranged at the left end of the second pipeline 41, and the second blowing box 42 is fixedly arranged on the right end face in the box body 1; the lower end of the second cylinder 36 is provided with a third pipeline 43, and the left end part of the third pipeline 43 is fixedly communicated with the right end surface of the box body 1; during the use, when electric putter 3 drove L shaped plate 4 when sliding to the right in first spout 5 (combine fig. 1, fig. 6, fig. 7, fig. 8), push plate 40 of closing plate 7 lower extreme will promote push rod 39 and move right this moment, thereby push rod 39 promotes second disc 37 and moves to the right in second barrel 36, gas in first barrel 25 will enter into second pipeline 41 after that, blow the box 42 blowout gas through the second, thereby make the gas that is located closing plate 7 lower extreme can flow to the left port of first pipeline 14 direction, thereby prevent that gas from piling up at closing plate 7 lower extreme circulation difficult, and then be favorable to improving the collection efficiency to gas.

A coal mine gas extraction process comprises the following specific steps:

the method comprises the following steps: firstly, coal is fed into a box body 1 through a feed inlet 2;

step two: then, throwing and turning over the coal through a throwing and turning over mechanism, so that the larger coal is broken when falling down, and gas in coal gaps is blown out;

step three: then introducing nitrogen to extrude the gas, so that the gas floats upwards;

step four: and finally, pumping the gas in the box body 1 into an extraction mechanism for screening treatment, and finally collecting the gas by using gas extraction equipment 18, wherein the nitrogen continues to be recycled.

The working principle is as follows: firstly, coal is fed into the box body 1 through the feeding hole 2, then after the electric push rod 3 is started, when the electric push rod 3 drives the L-shaped plate 4 to slide rightwards in the first sliding groove 5, the feeding hole 2 is sealed at the upper end of the L-shaped plate 4, so that excessive coal is prevented from entering and accumulating, and meanwhile, the upper end part of the box body 1 is sealed, so that the collection of gas is facilitated; when the electric push rod 3 drives the L-shaped plate 4 to slide rightwards in the first sliding chute 5, the L-shaped plate 4 pushes the sealing plate 7 to slide rightwards, so that coal on the semi-leakage plate 6 falls onto the upper filter plate 31, and when the coal falls onto the upper filter plate 31, larger coal blocks are crushed, and gas in gaps among the coal blocks floats into the box body 1, so that the collection of the gas is facilitated; meanwhile, when the electric push rod 3 drives the L-shaped plate 4 to slide rightward in the first chute 5 (as shown in fig. 1 and 4), the third steel wire rope 34 fixedly connected to the left end surface of the L-shaped plate 4 pulls the upper filter plate 31 to slide upward in the third chute 32, and the right end of the upper filter plate 31 rotates clockwise in the box body 1; when the electric push rod 3 moves to the limit position rightwards, the upper end face of the upper filter plate 31 is adsorbed by the adsorption block 35, the third gas spring 33 is compressed (the third gas spring 33 plays a role in resetting the upper filter plate 31), when the electric push rod 3 moves to the limit position leftwards, the adsorption block 35 is powered off and does not adsorb the upper filter plate 31, the upper filter plate 31 is rapidly downwards stressed by the telescopic force of the third gas spring 33, so that the coal on the upper filter plate 31 is emptied and thrown up, and then the fallen coal is crushed again, so that the gas in the coal block can float out, and the gas extraction of the coal block is facilitated; meanwhile, when the electric push rod 3 drives the L-shaped plate 4 to slide rightward in the first chute 5 (as shown in fig. 1, 6, 7 and 8), the push plate 40 at the lower end of the sealing plate 7 pushes the push rod 39 to move rightward, so that the push rod 39 pushes the second disc 37 to move rightward in the second cylinder 36, then the gas in the first cylinder 25 enters the second pipeline 41, and then the gas is ejected out through the second blowing box 42, so that the gas at the lower end of the sealing plate 7 can flow to the left port in the direction of the first pipeline 14, thereby preventing the gas from accumulating at the lower end of the sealing plate 7 and being difficult to flow, and further facilitating the improvement of the gas collection efficiency; meanwhile, when the electric push rod 3 drives the L-shaped plate 4 to slide rightwards in the first chute 5 (shown in fig. 1 and 5), the second steel wire rope 22 fixedly connected with the left end of the L-shape pulls the long inclined plate 21 to slide upwards in the first chute 5 from bottom to top, meanwhile, the right end of the long inclined plate 21 rotates clockwise in the box body 1, then the left end of the long inclined plate 21 pushes the short inclined plate 23 to move upwards in the second chute 24, and the space at the upper ends of the long inclined plate 21 and the short inclined plate 23 is sealed due to the contact between the long inclined plate 21 and the short inclined plate 23, and at the moment, due to the clockwise turning of the long inclined plate 21 and the upward movement of the short inclined plate 23, the space at the upper ends of the long inclined plate 21 and the short inclined plate 23 is compressed, so that the gas can be collected by upward movement, thereby improving the rapid extraction of the gas, shortening the extraction time and improving the extraction efficiency; meanwhile, when the long inclined plate 21 moves upwards clockwise (as shown in fig. 1 and 5), the pulling rope 28 fixedly connected with the lower end of the long inclined plate 21 is stretched, so that the pulling rope 28 pulls the first disc 26 to move leftwards in the first cylinder 25, at this time, the second gas spring 27 is stretched (the second gas spring 27 plays a role in resetting the first disc 26), so that nitrogen in the first cylinder 25 is extruded into the hose 29, then the nitrogen enters the first blowing box 30, and finally is discharged from the first blowing box 30, because the space at the upper ends of the long inclined plate 21 and the short inclined plate 23 is sealed, and meanwhile, because the density of the nitrogen is higher than that of the gas, the gas obtained in the space at the upper ends of the long inclined plate 21 and the short inclined plate 23 is further extruded upwards, so that the gas extraction and collection work is facilitated; when the long inclined plate 21 moves downwards and anticlockwise, the second gas spring 27 contracts, so that the first circular plate moves rightwards, and nitrogen is pumped into the first cylinder 25 through the air inlet pipe 19 so as to work in the next cycle; meanwhile, when the electric push rod 3 drives the L-shaped plate 4 to slide rightward in the first chute 5 (as shown in fig. 1, 7 and 8), the air extractor 15 starts to extract gas from the box 1 through the first pipeline 14, and the extracted gas enters the adsorption equipment 16, and since a small amount of nitrogen is accompanied in the gas, in order to ensure the purity of the extracted gas, the gas passes through the adsorption equipment 16, is processed by the air extraction equipment 18, enters the gas storage box 17, and is finally extracted and collected through the air extraction equipment 18; meanwhile, in order to reduce the waste of nitrogen, the nitrogen can be recycled, so that the lower end of the gas storage box 17 is communicated with the gas inlet pipe 19, the recycling of the nitrogen is facilitated, and the economic cost is saved; meanwhile, when the long sloping plate 21 moves upwards clockwise, the first steel wire rope 12 fixedly connected to the pull rope 28 is pulled, so that the sliding plate 11 fixedly connected to the bottom end of the first steel wire rope 12 slides rightwards at the discharge port 10, and the return spring 13 is compressed (the return spring 8 plays a role in returning the sliding plate 11), so that the coal with the gas extracted is discharged.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.