CN218177285U

CN218177285U - Air wall for coal mine gas treatment

Info

Publication number: CN218177285U
Application number: CN202221775990.2U
Authority: CN
Inventors: 成建林; 田文兵; 张小峰; 胡新社; 马宏飞; 原双丰; 胡秀泉; 斐肖肖; 苏乔峰; 崔双军; 张永建; 常青; 张轩亮; 王智彪; 王向伟; 谢正红
Original assignee: Qinhe Energy Group Co ltd; Shenyang Research Institute Co Ltd of CCTEG
Current assignee: Qinhe Energy Group Co ltd; Shenyang Research Institute Co Ltd of CCTEG
Priority date: 2022-07-11
Filing date: 2022-07-11
Publication date: 2022-12-30
Anticipated expiration: 2032-07-11

Abstract

The utility model relates to a wind wall technical field specifically is a wind wall is used in colliery gas treatment, which comprises a wall body, the wall body includes the ore body, the inboard fixedly connected with wall of the ore body, the inboard of wall is provided with the door frame, the inboard swing joint of door frame has the air door. The utility model discloses first rubber pad fixed connection is on the surface of air door, when closing the air door, first rubber pad can make the both ends of air door and the inner wall of door frame closely laminate, reach sealed effect, make the removal piece remove through rotating the screw rod simultaneously and extrude the push rod, the push rod can realize under the effect of movable block that the connecting rod drives the second rubber pad and move about to both ends by the centre, make the inner wall of second rubber pad and door frame closely laminate, cooperation through first rubber pad and second rubber pad, can reach sealed effect when the air door is closed, it completely cuts off to gas to have realized, can avoid gas to take place to leak and lead to having the potential safety hazard.

Description

Air wall for coal mine gas treatment

Technical Field

The utility model relates to a wind wall technical field specifically is a colliery is wind wall for gas control.

Background

The coal mine 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, the gas is colorless and tasteless gas which continues to generate gas under the physical and chemical actions in the coal formation process in the high-temperature and high-pressure environment, the gas cannot support combustion and maintain respiration, when a certain concentration is reached, people can suffocate due to oxygen deficiency and can burn or explode, the gas exists in a free state and an absorption state in coal bodies or surrounding rocks, and the gas in a coal mine needs to be treated in the process of excavating and developing the coal mine.

At present common air wall for coal mine gas control is when using, thereby the ventilation in control tunnel through the switching of control air door, because the air wall is built by fragment of brick and concrete and forms, when demolising the air wall, just can dismantle the air wall with the help of the broken instrument of tearing open of specialty, it is comparatively troublesome to dismantle, and the air wall can't reuse after dismantling, for example disclose a coal mine gas control in the patent document of publication No. CN212744079U and used the air wall, through setting up the lane group, the air door, the baffle, the cavity, the movable rod, the inserted bar, the position sleeve, the square groove, the thread groove, bolt etc., brought and unloaded convenient and repeatedly usable's effect, in order to solve prior art, common air wall for coal mine gas control is when using, because the air wall is built by fragment of brick and concrete, it is comparatively troublesome to dismantle, and the air wall can't reuse after dismantling the problem.

Although the cooperation through inserted bar and reference column and position sleeve has realized being convenient for to the effect that the headwall was dismantled, but in use, because the setting of air door is used for ventilating, open the air door, help the circulation of air in the mine, reduce the content of gas in the mine, close the air door when need not to ventilate, the realization is isolated to gas, but because be mobilizable between air door and the headwall, there is certain gap between the two to lead to connecting inseparably, consequently when closing the air door, gas takes place to leak through the gap easily, lead to causing the potential safety hazard, consequently need to design a colliery gas to administer and solve above-mentioned problem with the headwall.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a colliery gas is administered and is used brattice to it is mobilizable to have certain gap to lead to connecting inseparably enough in solving among the above-mentioned background art between air door and the brattice, consequently when closing the air door, gas takes place to leak through the gap easily, leads to causing the problem of potential safety hazard.

In order to achieve the purpose, the utility model provides the following technical proposal,

the air wall for coal mine gas treatment comprises a wall body, wherein the wall body comprises an ore body, the inner side of the ore body is fixedly connected with a wall surface, the inner side of the wall surface is provided with a door frame, and the inner side of the door frame is movably connected with an air door;

the air door is characterized in that a sealing mechanism is arranged on the inner side of the air door and comprises a first rubber pad, the first rubber pad is fixedly connected to the surface of the air door, a first movable groove is formed in the inner side of the air door, a screw rod is movably connected to the inner side of the first movable groove, a movable block is sleeved on the surface of the screw rod, a limiting groove is formed in the inner wall of the first movable groove, a limiting block is movably connected to the surface of the limiting groove, one end of the limiting block is movably connected with the limiting groove, the other end of the limiting block is fixedly connected with the movable block, a push rod is movably connected to the inner side of the first movable groove, a fixed plate is fixedly connected to the inner wall of the first movable groove, the push rod is movably connected to the inner side of the fixed plate, a spring is fixedly connected to the surface of the fixed plate, one end of the spring is fixedly connected with the fixed plate, the other end of the push rod is fixedly connected with a connecting rod, one end of the connecting rod is far away from a second rubber pad, and a second movable groove is formed in the inner side of the air door.

Preferably, first rubber pad is two sets of fixed connection on the surface of air door, the spacing groove is two sets of inner walls of seting up at first activity groove, the stopper is two sets of and corresponds the connection with the spacing groove.

Preferably, the push rods are movably connected to the inner side of the first movable groove in two groups, and the springs are correspondingly connected with the push rods in two groups.

Preferably, the connecting rod is two sets of and the push rod corresponds the connection, the second rubber pad is the rubber material, the second rubber pad is two sets of and the connecting rod corresponds the connection.

Preferably, the surface of wall is provided with protection machanism, protection machanism includes the gypsum sealing layer, gypsum sealing layer fixed connection is on the surface of wall, the fixed surface of gypsum sealing layer is connected with fire-retardant layer, the fixed surface of gypsum sealing layer is connected with high temperature resistant layer.

Preferably, one end of the gypsum sealing layer is fixedly connected with the wall surface, and the other end of the gypsum sealing layer is fixedly connected with the ore body.

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

1. first rubber pad fixed connection is on the surface of air door, when closing the air door, first rubber pad can make the both ends of air door and the inner wall of door frame closely laminate, reach sealed effect, make the removal piece remove through rotating the screw rod simultaneously and extrude the push rod, the push rod can realize under the effect of movable block that the connecting rod drives the second rubber pad and moves about to both ends by the centre, make the inner wall of second rubber pad and door frame closely laminate, through the cooperation of first rubber pad and second rubber pad, can reach sealed effect when the air door is closed, it completely cuts off to gas to have realized, can avoid gas to take place to leak and lead to having the potential safety hazard, and is very practical.

2. The gypsum sealing layer uses gypsum as a main substrate, is made by an inorganic heat-insulating material, can effectively improve the leakproofness of connection between an ore body and a wall surface, and realizes the isolation of gas, and the gypsum sealing layer has stable performance, high adhesiveness and good acid-base corrosion resistance, can improve the safety performance of the wall surface, the flame-retardant layer is formed by cementing materials, aggregate, chemical additives and water, and has a lower heat conductivity coefficient, the fire resistance of a wall surface material can be improved, the flame spread propagation speed can be reduced, or the combustion can be prevented within a certain time, the high-temperature-resistant layer is a coating formed by filling borosilicate glass serving as a main filler into a resin matrix, and the coating has excellent high-temperature resistance, can enable the wall surface to normally play a role in a high-temperature environment, when gas leakage causes fire, the high-temperature-resistant layer can play a role in protecting the wall surface, the safety performance of the wall surface is improved, and the operation is simple.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a schematic side view and sectional view of the structure of the push rod and a part of the second rubber pad of the present invention;

fig. 3 is an enlarged schematic view of a portion a of fig. 2 according to the present invention;

fig. 4 is a rear view of the structure of the air door and the second rubber pad.

In the figure: 1. an ore body; 11. a wall surface; 12. a door frame; 13. a damper; 2. a first rubber pad; 21. a movable groove; 22. a screw; 23. a moving block; 24. a limiting groove; 25. a limiting block; 26. a push rod; 27. a fixing plate; 28. a spring; 29. a connecting rod; 210. a second rubber pad; 3. a gypsum sealing layer; 31. a flame retardant layer; 32. a high temperature resistant layer.

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 efforts all belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment:

the air wall for coal mine gas treatment comprises a wall body, wherein the wall body comprises an ore body 1, the inner side of the ore body 1 is fixedly connected with a wall surface 11, the inner side of the wall surface 11 is provided with a door frame 12, the inner side of the door frame 12 is movably connected with an air door 13, and the air door 13 is arranged on the inner side of the door frame 12 and can facilitate the circulation of air in a mine;

the inboard of air door 13 is provided with sealing mechanism, sealing mechanism includes first rubber pad 2, first rubber pad 2 fixed connection is on the surface of air door 13, first movable groove 21 has been seted up to the inboard of air door 13, the inboard swing joint of first movable groove 21 has screw rod 22, movable block 23 has been cup jointed on the surface of screw rod 22, spacing groove 24 has been seted up to the inner wall of first movable groove 21, the surface swing joint of spacing groove 24 has stopper 25, the one end and the spacing groove 24 swing joint of stopper 25, the other end and the movable block 23 fixed connection of stopper 25, the inboard swing joint of first movable groove 21 has push rod 26, the inner wall fixedly connected with fixed plate 27 of first movable groove 21, push rod 26 swing joint is in the inboard of fixed plate 27, the fixed surface of fixed plate 27 is connected with spring 28, the one end and the fixed plate 27 fixed connection of spring 28, the other end and the push rod 26 fixed connection of spring 28, the fixed surface of push rod 26 is connected with connecting rod 29, the one end fixedly connected with second rubber pad 210 that push rod 26 was kept away from to connecting rod 29, the inboard of air door 13 has been seted up, the inner wall is seted up at the inner wall of first movable groove 24, and is established, can play the effect of realizing the effect of the effect that the movable block 23 that the horizontal position 23 can realize moving block 23, the effect of the removal of second rubber pad 23, the effect of closely takes place under the effect of the second rubber pad 13, the effect of the movable block 23, the effect of the air door of moving block 23, the effect of closely avoiding the effect of moving block 23 to take place.

Further, first rubber pad 2 is two sets of fixed connection on air door 13's surface, and spacing groove 24 is two sets of inner walls of seting up at first movable groove 21, and stopper 25 is two sets of and corresponds with spacing groove 24 to be connected, and first rubber pad 2 is rubber material fixed connection on air door 13's surface, can play sealed effect to the connection of air door 13 and door frame 12, and the gas of avoiding that can be fine takes place to leak and leads to causing the potential safety hazard.

Further, push rod 26 is two sets of swing joint in the inboard of first movable groove 21, spring 28 is two sets of and push rod 26 corresponds the connection, spring 28 fixed connection is on push rod 26's surface, can play the effect that resets to push rod 26, when opening air door 13, rotation screw 22 makes movable block 23 cancel the extrusion to push rod 26, can realize that push rod 26 resets under spring 28's effect, and then second rubber pad 210 is moved about to the centre by both ends, second rubber pad 210 and ground cancel the contact and are convenient for open air door 13.

Further, connecting rod 29 is two sets of and push rod 26 corresponds the connection, second rubber pad 210 is the rubber material, second rubber pad 210 is two sets of and connecting rod 29 corresponds the connection, make movable block 23 extrude push rod 26 under the effect of screw rod 22 through rotating screw rod 22, push rod 26 removes and makes connecting rod 29 drive second rubber pad 210 move about to both ends by the centre, can realize that second rubber pad 210 shelters from the gap of door frame 12 and air door 13 top and bottom, reach better sealed effect, can completely cut off gas.

Further, wall 11's surface is provided with protection machanism, protection machanism includes

gypsum sealing layer

3, 3 fixed connection of gypsum sealing layer are on wall 11's surface, the fixed surface of gypsum sealing layer 3 is connected with fire-retardant layer 31, the fixed surface of gypsum sealing layer 3 is connected with high temperature resistant layer 32, high temperature resistant layer 32 is with borosilicate glass as the mixed coating that forms in the main filler fills the resin matrix, excellent high temperature resistance has, can make wall 11 normal play function in high temperature environment, when gas leakage leads to taking place the conflagration, high temperature resistant layer 32 can play the effect of protection to wall 11, wall 11's security performance has been promoted.

Further, the one end and the wall 11 fixed connection of gypsum sealing layer 3, the other end and the 1 fixed connection of ore body of gypsum sealing layer 3, gypsum sealing layer 3 is with the gypsum as main substrate, it makes to assist with inorganic thermal insulation material, fire-retardant layer 31 is by cementing material, the aggregate, chemical additive and water combination form, 3 fixed connection of gypsum sealing layer are on the surface of wall 11, can effectively promote the seal of being connected between ore body 1 and the wall 11, the realization is isolated to gas, and its stable performance, have high adhesion, acid and alkali resistance corrosion resistance is good, can promote the security performance of wall 11.

The working principle is as follows: during the use, after closing air door 13, first rubber pad 2 fixed connection receives the extrusion on the surface of air door 13 can closely laminate with the inner wall of door frame 12, reach the effect that door frame 12 and air door 13 go on sealing up, then screw rod 22 rotates, movable block 23 cup joints on the surface of screw rod 22 owing to receive spacing of spacing groove 24, can carry out horizontal position under the effect of screw rod 22 and remove, the in-process that movable block 23 removed extrudes push rod 26, push rod 26 receives the extrusion can move about to both ends by the centre in the inboard of first movable groove 21, connecting rod 29 drives second rubber pad 210 under the effect of push rod 26 and carries out the position removal by the centre to both ends in step, spring 28 is the shrink state this moment, realize that second rubber pad 210 closely laminates with the inner wall of door frame 12, realize that second rubber pad 210 stops the gap between door frame 12 and air door 13, realize sealing, reach the effect of carrying out the separation to the gas.

The gypsum is used as a main substrate, the coating made of inorganic heat insulation materials is sprayed at the gap between the ore body 1 and the wall 11 to form a gypsum sealing layer 3, so that the connection tightness and safety between the ore body 1 and the wall 11 are improved, the effect of isolating gas is achieved, the coating formed by combining cementing materials, aggregates, chemical additives and water is sprayed on the surface of the wall 11 to form a flame-retardant layer 31, the fire resistance of the wall 11 is improved, the coating formed by filling borosilicate glass serving as a main filler into a resin matrix and mixing the borosilicate glass serving as the main filler is sprayed on the surface of the wall 11 to form a high-temperature-resistant layer 32, the wall 11 can normally play a role in a high-temperature environment, the safety performance of the wall 11 is improved, the wall 11 is protected, and the gypsum sealing layer is practical.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The air wall for coal mine gas treatment comprises a wall body, wherein the wall body comprises an ore body (1), the inner side of the ore body (1) is fixedly connected with a wall surface (11), the inner side of the wall surface (11) is provided with a door frame (12), and the inner side of the door frame (12) is movably connected with an air door (13);

the air door structure is characterized in that a sealing mechanism is arranged on the inner side of the air door (13), the sealing mechanism comprises a first rubber pad (2), the first rubber pad (2) is fixedly connected to the surface of the air door (13), a first movable groove (21) is formed in the inner side of the air door (13), a screw rod (22) is movably connected to the inner side of the first movable groove (21), a movable block (23) is sleeved on the surface of the screw rod (22), a limiting groove (24) is formed in the inner wall of the first movable groove (21), a limiting block (25) is movably connected to the surface of the limiting groove (24), one end of the limiting block (25) is movably connected to the limiting groove (24), the other end of the limiting block (25) is fixedly connected to the movable block (23), a push rod (26) is movably connected to the inner side of the first movable groove (21), a fixed plate (27) is fixedly connected to the inner wall of the first movable groove (21), the push rod (26) is movably connected to the inner side of the fixed plate (27), a spring (28) is fixedly connected to the surface of the fixed plate (27), one end of the spring (28) is fixedly connected to the push rod (26), and a connecting rod (29) is fixedly connected to the push rod (26), and one end of the second rubber pad (29) is fixedly connected to the push rod (26), and the connecting rod (29), and the second rubber pad (26) is connected to the push rod (26), and the connecting rod (26) The air door structure comprises a rubber pad (210), and a second movable groove (211) is formed in the inner side of the air door (13).

2. The air wall for coal mine gas treatment according to claim 1, wherein: first rubber pad (2) are two sets of fixed connection and are on the surface of air door (13), spacing groove (24) are two sets of inner walls of seting up in first activity groove (21), stopper (25) are two sets ofly and correspond the connection with spacing groove (24).

3. The air wall for coal mine gas treatment according to claim 1, characterized in that: the push rods (26) are movably connected to the inner side of the first movable groove (21) in two groups, and the springs (28) are correspondingly connected with the push rods (26) in two groups.

4. The air wall for coal mine gas treatment according to claim 1, wherein: the connecting rods (29) are connected with the push rods (26) correspondingly in two groups, the second rubber pads (210) are made of rubber, and the second rubber pads (210) are connected with the connecting rods (29) correspondingly in two groups.

5. The air wall for coal mine gas treatment according to claim 1, characterized in that: the surface of wall (11) is provided with protection machanism, protection machanism includes gypsum sealing layer (3), gypsum sealing layer (3) fixed connection is on the surface of wall (11), the fire-retardant layer of fixed surface of gypsum sealing layer (3) is connected with (31), the fixed surface of gypsum sealing layer (3) is connected with high temperature resistant layer (32).

6. The air wall for coal mine gas treatment according to claim 5, wherein: the one end and wall (11) fixed connection of gypsum sealing layer (3), the other end and the ore body (1) fixed connection of gypsum sealing layer (3).