CN215170143U

CN215170143U - Negative pressure ventilation device suitable for coal mining

Info

Publication number: CN215170143U
Application number: CN202121253363.8U
Authority: CN
Inventors: 庄培伟; 程丽丽
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-12-14
Anticipated expiration: 2031-06-02

Abstract

The utility model belongs to the technical field of the colliery, especially, be a negative pressure ventilation unit suitable for coal mining, including fixed platform, the air intake is installed to fixed platform's top, the exhaust tube is installed to one side of air intake, the draw-in groove has been seted up on the surface of air intake, the inside joint of draw-in groove has the cardboard, the air-supply line is installed to the bottom of air intake, the check valve is installed to the one end of air-supply line. This negative pressure ventilation unit suitable for coal mining, make air and dust in the ore hole enter into through taking out the dirt pipe through the aspiration pump and dissolve the case, arrange the aquatic through first dust exhaust pipe and dissolve the dust, when the dust of ore hole inside is too much, the solenoid valve is opened in the accessible circular telegram, make the work of second dust exhaust pipe, to taking out the intraductal dust of dirt disperse, accelerate the efficiency of taking out the dust, through the coarse filter screen, air conditioner filter screen and dust filter core filter impurity to the air, avoid the gas in the ore hole to pass through the air-supply line backward flow through the check valve.

Description

Negative pressure ventilation device suitable for coal mining

Technical Field

The utility model belongs to the technical field of the colliery, concretely relates to negative pressure ventilation unit suitable for coal mining.

Background

Coal is an area where people mine coal resources in a coal-rich mining area, and is generally divided into a minery coal mine and an opencast coal mine, when a coal seam is far away from the ground surface, coal is generally selected to dig a tunnel to the underground, the minery coal mine is the minery coal mine, when the coal seam 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 minery coal mine, the coal mine range comprises large areas of the ground, the underground and related facilities, the coal mine is a reasonable space excavated by people when digging a geological stratum rich in coal, the coal mine generally comprises a tunnel, a well cave, a digging surface and the like, the coal is the most main solid fuel, is one of combustible organic rocks, is formed by a flourishing plant growing in a certain geological age, gradually piling into a thick layer in a proper geological environment, burying the thick layer in the water bottom or silt and performing natural coalification action in the long geological age, in the geological periods around the world, most coal is produced in stratums of the carbolite period, the diadsic period, the Jurassic period and the third period, which is an important coal-forming age, the carbon content of the coal is generally 46-97%, the coal is brown to black and has dull to metallic luster, and the coal can be divided into peat, lignite, bituminous coal and anthracite according to different coalification degrees.

The mine ventilation system is an important auxiliary system of a mine production system, plays a role of serving the production system, has a restriction effect on the production system, and has important influence on ordered production of a mine, working environment of workers, underground climate regulation and economic benefit of the mine, a large amount of dust is generated in the coal mine in the mining process, most of negative pressure ventilation devices used for the coal mine on the market generally discharge the dust out of a mine hole through the negative pressure ventilation devices, and the large amount of dust has certain pollution on the nearby atmosphere and water.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a negative pressure ventilation unit suitable for coal mining has solved most negative pressure ventilation unit who is used for the colliery on the market, makes the dust discharge outside the ore deposit hole through negative pressure ventilation unit usually, and a large amount of dusts all have the problem of certain pollution to near atmosphere and water.

In order to achieve the above object, the utility model provides a following technical scheme: a negative pressure ventilation device suitable for coal mining comprises a fixed platform, an air inlet is arranged above the fixed platform, an exhaust pipe is arranged on one side of the air inlet, a clamping groove is arranged on the surface of the air inlet, a clamping plate is clamped in the clamping groove, an air inlet pipe is arranged at the bottom of the air inlet, a one-way valve is arranged at one end of the air inlet pipe, a water tank is arranged at one side of the exhaust pipe, the bottom of the exhaust pipe is connected with an exhaust pipe, one end of the exhaust pipe is connected with a dissolving tank, one side of the dissolving tank is provided with a dust exhaust pipe, the surface of the dust extraction pipe is connected with an air extraction pump, a first dust exhaust pipe is arranged inside the dissolving tank, a second dust exhaust pipe is arranged at the top of the dissolving tank, the surface of the second dust exhaust pipe is connected with an electromagnetic valve, the inside of exhaust tube is provided with servo motor, servo motor's output is connected with the fan blade.

Preferably, the top of the fixed platform is provided with a supporting rod, and one end of the supporting rod is connected with a rain baffle.

Preferably, the inside of air intake is provided with the cartridge filter, the inside of cartridge filter is provided with coarse filter screen, the air conditioner filter screen is installed to the below of coarse filter screen, the dust filter core is installed to the below of air conditioner filter screen, the air intake is connected with the cartridge filter through the cardboard.

Preferably, the water injection pipe is installed at the top of water tank, the one end joint of water injection pipe has the card cap, the inside of water tank is provided with the water pump, the delivery outlet of water pump is connected with the water pipe.

Preferably, the bottom of the dissolving tank is provided with a sewage discharge pipe, and the surface of the sewage discharge pipe is connected with a water suction pump.

Compared with the prior art, the beneficial effects of the utility model are that:

this negative pressure ventilation unit suitable for coal mining, make air and dust in the ore hole enter into through taking out the dirt pipe through the aspiration pump and dissolve the case, arrange the aquatic through first dust exhaust pipe and dissolve the dust, when the dust of ore hole inside is too much, the solenoid valve is opened in the accessible circular telegram, make the work of second dust exhaust pipe, to taking out the intraductal dust of dirt disperse, accelerate the efficiency of taking out the dust, through the coarse filter screen, air conditioner filter screen and dust filter core filter impurity to the air, avoid the gas in the ore hole to pass through the air-supply line backward flow through the check valve.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a three-dimensional structure of the present invention;

FIG. 2 is a three-dimensional cross-sectional structure of the present invention;

fig. 3 is a three-dimensional cross-sectional structure diagram of the filter cartridge of the present invention;

fig. 4 is a sectional structure view of the water tank of the present invention.

In the figure: 1, fixing a platform; 2, air inlet; 3 a rain shield; 4, an air inlet pipe; 5, a one-way valve; 6, an exhaust pipe; 7, a dissolving box; 8, an air pump; 9, a dust extraction pipe; 10 a sewage discharge pipe; 11, a water pump; 12 a water pipe; 13 a water tank; 14 solenoid valves; 15 a first dust exhaust pipe; 16 fan blades; 17 a servo motor; 18 a filter cartridge; 19, a clamping plate; 20 coarse filter screen; 21 air conditioner filter screen; 22 dust filter element; 23, a water pump; 24 an exhaust tube; 25 second dust exhaust pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: the utility model provides a negative pressure ventilation unit suitable for coal mining, including fixed platform 1, air intake 2 is installed to fixed platform 1's top, exhaust tube 24 is installed to one side of air intake 2, the draw-in groove has been seted up on the surface of air intake 2, the inside joint of draw-in groove has cardboard 19, air-supply line 4 is installed to the bottom of air intake 2, check valve 5 is installed to the one end of air-supply line 4, one side of exhaust tube 24 is provided with water tank 13, the bottom of exhaust tube 24 is connected with exhaust column 6, the one end of exhaust column 6 is connected with dissolving box 7, dissolve one side of box 7 and install suction pipe 9, the surface connection of suction pipe 9 has aspiration pump 8, the inside of dissolving box 7 is provided with first dust exhaust pipe 15, dissolve top of box 7 and install second dust exhaust pipe 25, the surface connection of second dust exhaust pipe 25 has solenoid valve 14, the inside of exhaust column 24 is provided with servo motor 17, servo motor 17's output is connected with fan blade 16.

Specifically, the bracing piece is installed at the top of fixed platform 1, and the one end of bracing piece is connected with weather shield 3, and the top of weather shield 3 is the slope, avoids the rainwater to pour into the mine hole through air intake 2 inside through weather shield 3 when raining.

Specifically, the inside of air intake 2 is provided with cartridge filter 18, and the inside of cartridge filter 18 is provided with coarse filter 20, and air conditioner filter screen 21 is installed to the below of coarse filter screen 20, and dust filter core 22 is installed to the below of air conditioner filter screen 21, and air intake 2 is connected with cartridge filter 18 through cardboard 19, filters impurity through coarse filter screen 20, air conditioner filter screen 21 and dust filter core 22 to the air.

Specifically, the water injection pipe is installed at the top of water tank 13, and the one end joint of water injection pipe has the card cap, and the inside of water tank 13 is provided with water pump 23, and the delivery outlet of water pump 23 is connected with water pipe 12, adds certain water through the water injection pipe of water tank 13, adds suitable water for dissolving case 7 through water pipe 12 through water pump 23, makes the joint to water injection pipe one end through the card cap.

Specifically, the bottom of the dissolving tank 7 is provided with a sewage discharge pipe 10, the surface of the sewage discharge pipe 10 is connected with a water suction pump 11, the sewage inside the dissolving tank 7 is periodically discharged into other containers through the sewage discharge pipe 10 by the water suction pump 11, and the sewage is treated in other modes.

The utility model discloses a theory of operation and use flow: after the utility model is installed, a certain amount of water is added through the water injection pipe of the water tank 13, a water pump 23 is used for adding proper water for the dissolving box 7 through the water pipe 12, air and dust in the mine hole enter the dissolving box 7 through the dust extraction pipe 9 through the air extraction pump 8, the dust is dissolved in the water discharged through the first dust extraction pipe 15, if the dust in the mine hole is too much, the electromagnetic valve can be opened through electrifying, the second dust extraction pipe 25 works, the dust in the dust extraction pipe 9 is dispersed, the dust extraction efficiency is accelerated, the dust is conveyed into the water in the dissolving box 7 through the second dust extraction pipe 25 for dissolving, the gas is above the dissolving box 7 through the water, the gas in the dissolving box 7 is discharged through the air extraction pipe 6 by driving the fan blade 16 through the servo motor 17, the air pressure in the mine hole is instantaneously smaller than the atmospheric pressure or smaller than the normal pressure, at this moment, an air inlet 2 is opened on the other side (which is usually opposite to the installation air extraction pipe 24) of the mine hole, outside air is under atmospheric pressure, in the automatic ore deposit hole that gets into through air-supply line 4, simultaneously when wind enters into the ore deposit hole through air intake 2, filters impurity through coarse filter screen 20, air conditioner filter screen 21 and dust filter core 22 to the air earlier, avoids the gas in the ore deposit hole to pass through air-supply line 4 backward flow through check valve 5, and all consumer all supply power through external power source in this device.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a negative pressure ventilation unit suitable for coal mining, includes fixed platform (1), its characterized in that: an air inlet (2) is installed above the fixed platform (1), an air suction pipe (24) is installed on one side of the air inlet (2), a clamping groove is formed in the surface of the air inlet (2), a clamping plate (19) is clamped inside the clamping groove, an air inlet pipe (4) is installed at the bottom of the air inlet (2), a one-way valve (5) is installed at one end of the air inlet pipe (4), a water tank (13) is arranged on one side of the air suction pipe (24), an air suction pipe (6) is connected to the bottom of the air suction pipe (24), a dissolving tank (7) is connected to one end of the air suction pipe (6), a dust suction pipe (9) is installed on one side of the dissolving tank (7), an air suction pump (8) is connected to the surface of the dust suction pipe (9), a first dust discharge pipe (15) is arranged inside the dissolving tank (7), and a second dust discharge pipe (25) is installed at the top of the dissolving tank (7), the surface of the second dust exhaust pipe (25) is connected with an electromagnetic valve (14), a servo motor (17) is arranged inside the air exhaust pipe (24), and the output end of the servo motor (17) is connected with a fan blade (16).

2. A negative pressure ventilation apparatus suitable for use in coal mining as claimed in claim 1, wherein: the top of the fixed platform (1) is provided with a supporting rod, and one end of the supporting rod is connected with a rain baffle (3).

3. A negative pressure ventilation apparatus suitable for use in coal mining as claimed in claim 1, wherein: the inside of air intake (2) is provided with cartridge filter (18), the inside of cartridge filter (18) is provided with coarse filter screen (20), air conditioner filter screen (21) is installed to the below of coarse filter screen (20), dust filter core (22) is installed to the below of air conditioner filter screen (21), air intake (2) are connected with cartridge filter (18) through cardboard (19).

4. A negative pressure ventilation apparatus suitable for use in coal mining as claimed in claim 1, wherein: the water injection pipe is installed at the top of water tank (13), the one end joint of water injection pipe has the card cap, the inside of water tank (13) is provided with water pump (23), the delivery outlet of water pump (23) is connected with water pipe (12).

5. A negative pressure ventilation apparatus suitable for use in coal mining as claimed in claim 1, wherein: the bottom of dissolving case (7) is installed sewage discharge pipe (10), sewage discharge pipe (10) surface connection has suction pump (11).