CN218062372U

CN218062372U - Gas discharging equipment for coal mining

Info

Publication number: CN218062372U
Application number: CN202121781836.1U
Authority: CN
Inventors: 朱信仰; 朱琪琳; 朱玉林; 李梦晓
Original assignee: Jiangsu Kangheng Environmental Protection Technology Co ltd
Current assignee: Jiangsu Kangheng Environmental Protection Technology Co ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-12-16
Anticipated expiration: 2031-08-02

Abstract

The utility model discloses a gas discharging equipment for coal mining, including setting up in the last delivery pipe of exhaust well, integrated into one piece has sealed dish on the delivery pipe, sealed dish lid is in exhaust well port department, delivery pipe upper end integrated into one piece has the header, header side intercommunication has the breather pipe, breather pipe other end intercommunication has gaseous filtration structure, the intercommunication has gaseous booster pump on the gaseous filtration structure side, the gaseous booster pump other end intercommunication has reaction absorbing structure, the last intercommunication of reaction absorbing structure has the outlet duct, install the blast air structure that stretches into in the exhaust well on the sealed dish. The utility model has the advantages that: the gas emission effect is good, and the discharged gas can be treated.

Description

Gas discharging equipment for coal mining

Technical Field

The utility model relates to a coal mining technology field specifically indicates a gas discharging equipment is used in coal mining.

Background

Coal mining, i.e. the mining operation is carried out on underground coal. During coal mining, gas is generated.

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 aromatic hydrocarbon gas and gas are simultaneously emitted. The relative density of gas to air was 0.554, and the density of gas was 0.716kg/m under the standard condition ³ The gas has the permeability 1.6 times of that of air, is difficult to dissolve in water, does not support combustion and can not maintain breath, and when the gas reaches a certain concentration, people can suffocate due to oxygen deficiency and can be burnt or exploded. The gas exists in a free state and an adsorbed state in the coal body or the surrounding rock.

The gas in the existing coal mine is basically discharged by directly utilizing the exhaust fan, after the gas in the underground is discharged, a large amount of gas cannot be timely supplemented, and the underground negative pressure can be caused, so that the discharge amount is less, the discharge effect is poor, and the gas is directly discharged into the atmosphere, so that certain pollution is caused to the atmosphere.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve foretell various problems, provide a gas discharging equipment for coal mining who discharges the effect better, can handle exhaust gas.

In order to solve the technical problem, the utility model provides a technical scheme does: a gas discharge device for coal mining comprises a discharge pipe erected on an exhaust well, wherein a sealing disc is integrally formed on the discharge pipe and covers the port of the exhaust well, a gas collection box is integrally formed at the upper end of the discharge pipe, one side of the gas collection box is communicated with a vent pipe, the other end of the vent pipe is communicated with a gas filtering structure, a gas booster pump is communicated on the side of the gas filtering structure, the other end of the gas booster pump is communicated with a reaction absorption structure, the reaction absorption structure is communicated with an outlet pipe, and a blast structure stretching into the exhaust well is installed on the sealing disc;

the air blowing structure comprises air blowers fixed at two ends of the upper surface of the sealing disc through bolts, the air outlet end of each air blower is communicated with a first pipeline penetrating through the sealing disc, the other end of each first pipeline is communicated with a ring pipe sleeved at the position close to the outer curved surface of the discharge pipe, a plurality of middle pipes are communicated with the lower surface of the ring pipe, the other ends of the middle pipes are communicated with a second ring pipe, and the two sides of the ring pipe are uniformly communicated with a plurality of second air outlet pipes.

As an improvement, the gas filtering structure comprises a filtering box arranged on the ground, the ventilating pipe is communicated with one end of the upper surface of the filtering box, a plurality of layers of filter screens are inserted into the filtering box, and the gas booster pump is fixed on the side surface far away from the ventilating pipe through bolts.

As an improvement, a rubber layer is bonded on the bottom surface inside the filter box.

As an improvement, the reaction absorption structure comprises a water tank arranged on the ground, the other end of the gas booster pump is communicated with a feeding pipe, the other end of the feeding pipe is inserted below the liquid level of the water tank, and the gas outlet pipe is communicated with one end of the upper surface of the water tank.

As an improvement, a chemical agent box is further fixed on the water tank through bolts, and a liquid outlet pipe extending into the water tank is communicated with the lower end of one side face of the chemical agent box.

As an improvement, a negative pressure fan is arranged at one end of the gas collection box close to the vent pipe.

Compared with the prior art, the utility model the advantage lie in: when the utility model is used, the air blowing structure is arranged, the air in the well can be introduced into the well, thereby forming convection in the well, accelerating the emission of gas in the well, and having larger emission and better emission effect; the gas filtering structure and the reaction absorption structure are arranged, so that the discharged gas can be filtered and subjected to absorption reaction, and then the treated gas is discharged into the atmosphere, so that the pollution to the atmosphere is avoided; the rubber layer is arranged, so that the sealing effect of each layer of filter screen is better, the filter screen cannot permeate to the next layer without being filtered, and the filtering effect is better.

Drawings

Fig. 1 is a schematic view of the gas discharge device for coal mining according to the present invention.

Fig. 2 is an internal structure diagram of the gas filtering structure and the reaction absorbing structure of the gas discharging device for coal mining of the utility model.

Fig. 3 is the utility model discloses a gas drainage device's blast air structure pipeline structure sketch map for coal mining.

As shown in the figure: 1. a discharge pipe; 2. sealing the disc; 3. a gas collection tank; 4. a breather pipe; 5. a gas booster pump; 6. an air outlet pipe; 7. a blower; 8. a first pipeline; 9. a ring pipe; 10. an intermediate pipe; 11. a second ring pipe; 12. a second air outlet pipe; 13. a filter box; 14. filtering with a screen; 15. a rubber layer; 16. a water tank; 17. introducing a pipe; 18. a chemical agent tank; 19. a liquid outlet pipe; 20. a negative pressure fan.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

With reference to the attached drawings 1 to 3, the gas discharge device for coal mining is characterized in that a discharge pipe 1 and a sealing disc 2 cover the port of an exhaust well, a gas collection box 3 is communicated with the upper end of the discharge pipe 1, one side surface of the gas collection box 3 is communicated with a vent pipe 4, the other end of the vent pipe 4 is communicated with a gas filtering structure, the side surface of the gas filtering structure is communicated with a gas booster pump 5, the other end of the gas booster pump 5 is communicated with a reaction absorption structure, the reaction absorption structure is communicated with an air outlet pipe 6, and the sealing disc 2 is provided with an air blast structure extending into the exhaust well;

the air blowing structure comprises air blowers 7 fixed at two ends of the sealing disc 2 through bolts, air outlet ends of the air blowers 7 are communicated with a first pipeline 8 penetrating through the sealing disc 2, the other ends of the first pipeline 8 are communicated with a ring pipe 9 sleeved at the position close to the outer curved surface of the discharge pipe 1, a plurality of middle pipes 10 are communicated with the lower surface of the ring pipe 9, the other ends of the middle pipes 10 are communicated with a second ring pipe 11, and the side surfaces of the second ring pipe 11 are uniformly communicated with a plurality of air outlet pipes 12.

The gas filtering structure comprises a filtering box 13 arranged on the ground, the breather pipe 4 is communicated with one end of the upper surface of the filtering box 13, a plurality of layers of filter screens 14 are inserted into the upper surface of the filtering box 13, and the gas booster pump 5 is fixed on the side surface far away from the breather pipe 4 through bolts.

The rubber layer 15 is adhered to the bottom surface inside the filter box 13.

The reaction absorption structure comprises a water tank 16 arranged on the ground, the other end of the gas booster pump 5 is communicated with an inlet pipe 17, the other end of the inlet pipe 17 is inserted below the liquid level of the water tank 16, and the gas outlet pipe 6 is communicated with one end of the upper surface of the water tank 16.

A chemical agent box 18 is further fixed on the water box 16 through bolts, and a liquid outlet pipe 19 extending into the water box 16 is communicated with the lower end of one side face of the chemical agent box 18.

And a negative pressure fan 20 is arranged at one end of the gas collection box 3 close to the vent pipe 4.

The utility model discloses a concrete implementation mode: when the utility model is used, the negative pressure fan 20, the gas booster pump 5 and the air blower 7 can be started through a control button (not shown in the figure), the gas in the pit can be pumped into the gas collecting box 3 through the discharging pipe 1 by the movement of the negative pressure fan 20 and the gas booster pump 5, then the gas enters the filter box 13, after being filtered by a plurality of layers of the filter screens 14, the gas enters the liquid level of the water tank 16, at the moment, the switch valve on the liquid outlet pipe 19 is screwed, the chemical agent in the chemical agent box 18 is introduced into the water tank 16, so that the harmful gas in the gas is neutralized, and the gas is discharged through the gas outlet pipe 6; the movement of the blower 7 can lead air into the well through the first pipe 8, the second pipe 9, the middle pipe 10 and the second pipe 11, so that the whole device forms an air circulation to help the gas discharge.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. A gas discharge device for coal mining comprises a discharge pipe (1) erected on an exhaust well, and is characterized in that a sealing disc (2) is integrally formed on the discharge pipe (1), the sealing disc (2) covers the end of the exhaust well, a gas collection tank (3) is integrally formed at the upper end of the discharge pipe (1), one side face of the gas collection tank (3) is communicated with a vent pipe (4), the other end of the vent pipe (4) is communicated with a gas filtering structure, the side face of the gas filtering structure is communicated with a gas booster pump (5), the other end of the gas booster pump (5) is communicated with a reaction absorption structure, the reaction absorption structure is communicated with an air outlet pipe (6), and the sealing disc (2) is provided with an air blowing structure extending into the exhaust well;

the air blowing structure comprises an air blower (7) fixed at two ends of the sealing disc (2) through bolts, wherein an air outlet end of the air blower (7) is communicated with a first pipeline (8) penetrating through the sealing disc (2), the other end of the first pipeline (8) is communicated with a ring pipe (9) which is close to the outer curved surface of the discharge pipe (1), a plurality of intermediate pipes (10) are communicated with the lower portion of the ring pipe (9), a ring pipe two (11) is communicated with the other end of the intermediate pipes (10), and a plurality of air outlet pipes two (12) are uniformly communicated with the side surface of the ring pipe two (11).

2. A gas discharge apparatus for coal mining according to claim 1, characterized in that: the gas filtering structure comprises a filtering box (13) arranged on the ground, the ventilating pipe (4) is communicated with one end of the filtering box (13), a plurality of layers of filter screens (14) are inserted into the filtering box (13), and the gas booster pump (5) is fixed on the side surface far away from the ventilating pipe (4) through bolts.

3. A gas discharge apparatus for coal mining according to claim 2, characterized in that: and a rubber layer (15) is bonded on the bottom surface inside the filter box (13).

4. A gas discharge apparatus for coal mining according to claim 2, characterized in that: the reaction absorption structure comprises a water tank (16) arranged on the ground, the other end of the gas booster pump (5) is communicated with a feeding pipe (17), the other end of the feeding pipe (17) is inserted below the liquid level of the water tank (16), and the gas outlet pipe (6) is communicated with one end of the upper surface of the water tank (16).

5. The gas discharge device for coal mining according to claim 4, wherein: and a chemical agent box (18) is further fixed on the water tank (16) through bolts, and a liquid outlet pipe (19) extending into the water tank (16) is communicated with the lower end of one side surface of the chemical agent box (18).

6. A gas discharge apparatus for coal mining according to claim 1, characterized in that: and a negative pressure fan (20) is arranged at one end of the gas collection box (3) close to the vent pipe (4).