CN203035258U

CN203035258U - Mine gas crib

Info

Publication number: CN203035258U
Application number: CN 201220632383
Authority: CN
Inventors: 张玲
Original assignee: Huainan Jiuhui Industry & Trade Co Ltd
Current assignee: Huainan Jiuhui Industry & Trade Co Ltd
Priority date: 2012-11-26
Filing date: 2012-11-26
Publication date: 2013-07-03
Anticipated expiration: 2022-11-26

Abstract

The utility model relates to a plugging device used for plugging a coal mining working face, and aims to provide a mine gas crib which is better in plugging effect to the coal mining working face. The mine gas crib comprises a gas crib body (1) in a cuboid shape. The gas crib body comprises inner container layers (2), outer container layers (3) and an outer shell (4). The outer container layers are located outside the inner container layers respectively on the top, the bottom, a left side face and a right side face of the gas crib body. A cavity (5) is formed between the inner container layers and the outer container layers. The outer shell (4) wraps the outer faces of the outer container layers and the outer faces of the inner container layers on a front side face and a rear side face of the gas crib body. An inner container inflation valve (6) and an outer container inflation valve (7) are arranged on the front side face of the gas crib body.

Description

Mining gas buttress

Technical field

The utility model relates to the plugging device of the fully-mechanized mining working in a kind of Safety of Coal Mine Production process, particularly relates to a kind of flexible inflation gas buttress.

Background technology

The coal-face filling of corner is up and down adopted usually and is manually loaded coal in woven bag under the coal mine, fills entire working surface with the woven bag of coalingging again afterwards.Because single woven bag obturator out-of-shape, poor plasticity can not fit tightly between each obturator, have the slit, outwards gush out from the slit for preventing gas, also need to use the soft material pay the seam.This shows that the method that this kind filled work plane not only weak effect, efficient is low, and it is higher to fill cost.In addition, the shutoff that woven bag after coalingging forms is not removable, in the entire job process, this shutoff work repeating again and again, the expense of not only taking a lot of work is expected, working strength of workers is big, and because of the filling time long, fill and the work plane coal cutting can not parallel operations, limited the performance of working surface production ability greatly.China's application number is CN200720038860.X, open day be on June 18th, 2008 patent disclosure a kind of movable coal mine fully-mechanized mining working faces end head plugging air bag for safety, this air bag replaces the Coal sack shutoff, shutoff is more reliable, efficient is higher, reusable, reduced working strength of workers, but this air bag is soft material, inflation makes it reach rigid state and could realize shutoff in the capsule bag, in the shutoff process pier shape capsule bag of rigidity can't with by the back of shutoff, sidewall matches, plugging effect is poor, even the top at the capsule bag, both sides arrange inflatable fold, also can't make it and be fitted like a glove by the tunnel of shutoff.

The utility model content

The technical problems to be solved in the utility model provides a kind of to the better mining gas buttress of coal-face plugging effect.

The utility model is mining, and gas is piled up neatly, comprise gas buttress body, the shape of described gas buttress body is rectangular build, described gas buttress body comprises bladder layer, outer courage layer and shell, described outer courage layer be positioned at gas buttress body top, bottom, about the outside of bladder layer at place, two sides, form a cavity between outer courage layer and the bladder layer, described shell is wrapped in the outside of outer courage layer and the outside of the bladder layer that former and later two sides of gas buttress body are located, and the leading flank of described gas buttress body is provided with inner bag charge valve, outer courage charge valve.

The utility model is mining, and gas is piled up neatly, and also is provided with a safety valve on the leading flank of wherein said gas buttress body.

The utility model is mining, and gas is piled up neatly, and the periphery of wherein said gas buttress body leading flank is provided with edge sealing, and edge sealing is provided with some suspension ring.

The utility model is mining, and gas is piled up neatly, and bladder layer and the outer courage layer of wherein said gas buttress body are made by elastic force plastic coat cloth, and described shell is made by the strong plastic coated cloth.

Gas buttress difference from prior art that the utility model is mining is the mining gas buttress of the utility model top, the bottom and about two sides by bladder layer, outer courage layer and shell constitute, form a cavity between bladder layer and the outer courage layer, this cavity namely is outer courage, work as the utility model when in use like this, outer courage is after suitably inflating, the top of gas buttress body, the bottom and about the top of two sides and coal-face, when bottom and sidewall contact, outer courage can change the shape of self automatically and reach top with coal-face, the state that bottom and sidewall match, and then can reach better plugging effect.

Leading flank is provided with a safety valve in the utility model the is mining gas buttress, surpass default when making the gas buttress keep the limiting value of flexibility when the pressure in the gas buttress body like this, safety valve meeting automatic deflation, thus in to the inflation of gas buttress, can make the gas buttress keep flexibility more easily.

The periphery of leading flank is provided with edge sealing in the utility model the is mining gas buttress, edge sealing is provided with some suspension ring, like this in the use of gas buttress, can pass suspension ring and the gas buttress is fixed on the sidewall of coal-face by rope, make the gas buttress more firm to the shutoff of coal-face.

Bladder layer and outer courage layer are all made by elastic force plastic coat cloth in the utility model the is mining gas buttress, fire-retardant, antistatic, characteristics such as intensity is high, the blast-proof ability is strong, ageing-resistant, the use permanent, quality is light, easy to break, easy typing that elastic force plastic coat cloth has, shell adopts the strong plastic coated cloth to make, have better tensile strength, thereby can further improve plugging effect.

The utility model is described in further detail below in conjunction with accompanying drawing.

Description of drawings

Fig. 1 is the stereogram of the mining gas buttress of the utility model;

Fig. 2 is that the mining gas buttress of the utility model is along the sectional view of A-A line among Fig. 1;

Fig. 3 is that the mining gas buttress of the utility model is along the sectional view of B-B line among Fig. 1.

The specific embodiment

As shown in Figure 1, the utility model is mining, and the gas buttress comprises gas buttress body 1, and the shape of described gas buttress body 1 is rectangular build, and gas buttress body comprises bladder layer 2, outer courage layer 3 and shell 4, and the inside of described bladder layer 2 forms inner bag 11, and its effect is to make gas buttress body 1 basic forming.The leading flank of described gas buttress body 1 is provided with inner bag charge valve 6, outer courage charge valve 7 and safety valve 8.The periphery of described gas buttress body 1 leading flank is provided with edge sealing 9, and edge sealing 9 is provided with some suspension ring 10.As shown in Figure 2, described outer courage layer 3 be positioned at gas buttress body 1 top, bottom, about the outside of bladder layer 2 at place, two sides, form a cavity 5 between outer courage layer 3 and the bladder layer 2, this cavity 5 is outer courage, its effect is to pile up neatly the plugging effect of body 1 in order to improve gas.In conjunction with Fig. 3 as can be known, described shell 4 is wrapped in the outside of outer courage layer 3 and the outside of the bladder layer 2 that gas buttress body 1 former and later two sides are located.

Bladder layer 2 and the outer courage layer 3 of described gas buttress body 1 are made by elastic force plastic coat cloth, and shell 4 is made by the strong plastic coated cloth.The strong plastic coated cloth adopts high strength synthetic fibre as framework material, is coat with the plastic hybrid, thereby makes outer field hot strength reach 3 ~ 5 times of steel.Because the use of strong plastic coated cloth, make that the range of application of the mining gas buttress of the utility model is wider, not only can be used for the coal-face shutoff of corner up and down, can also fill and top braces for airtight under the coal mine, hollow, perhaps construct fire wall within the specific limits.

Introduce use of the present utility model below:

Before the use, set a preset value to the gas pressure in the gas buttress body 1, this preset value is that gas buttress body 1 keeps flexible gas pressure limiting value.During use, the utility model is put in the bottom of coal-face when the unaerated, by cable traction suspension ring 10 the gas buttress is fixed on the sidewall of work plane, source of the gas with coal-face is connected with the inner bag charge valve 6 of gas buttress then, inner bag 11 inflations to the gas buttress, before gas buttress body 1 reaches rigidity, close source of the gas, make the gas buttress keep flexible.When the pressure in the gas buttress body 1 surpasses preset value, safety valve 8 automatic deflations, when inflation too much was rigid state in the gas buttress body 1,8 venting that open the safety-valve made gas buttress body 1 be flexible.Afterwards the outer courage charge valve 7 of source of the gas with the gas buttress is connected, suitably inflates for outer courage.Because the existence of outer courage, the top of gas buttress, bottom and about two sides can adjust self shape according to the shape of corner about the work plane automatically, reaching the state that matches with corner up and down, and keep this shape.

Above-described embodiment is described preferred embodiment of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model all should fall in the definite protection domain of the utility model claims.

Claims

1. a mining gas is piled up neatly, comprise gas buttress body (1), the shape of described gas buttress body (1) is rectangular build, it is characterized in that: described gas buttress body comprises bladder layer (2), outer courage layer (3) and shell (4), described outer courage layer (3) is positioned at gas buttress body (1) top, the bottom, about the outside of bladder layer (2) at place, two sides, form a cavity (5) between outer courage layer (3) and the bladder layer (2), described shell (4) is wrapped in the outside of outer courage layer (3) and the outside of the bladder layer (2) that former and later two sides of gas buttress body are located, and the leading flank of described gas buttress body (1) is provided with inner bag charge valve (6), outer courage charge valve (7).

2. mining gas buttress according to claim 1 is characterized in that: also be provided with a safety valve (8) on the leading flank of described gas buttress body (1).

3. mining gas according to claim 1 and 2 is piled up neatly, and it is characterized in that: the periphery of described gas buttress body (1) leading flank is provided with edge sealing (9), and edge sealing is provided with some suspension ring (10).

4. mining gas according to claim 3 is piled up neatly, and it is characterized in that: bladder layer (2) and the outer courage layer (3) of described gas buttress body (1) are made by elastic force plastic coat cloth, and described shell (4) is made by the strong plastic coated cloth.