Temporary isolation wall provided with double-layer air bags and used for closed wind path roadway of underground coal mine

A technology of double-layer airbags and partition walls, which is applied in mining equipment, mining equipment, safety devices, etc., can solve the problems of firewalls that consume a lot of time, high labor intensity, and long construction time, so as to achieve not easy slippage and safety factor High and good fire prevention effect

CN110318806AInactive Publication Date: 2019-10-11SHANDONG UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-10-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a temporary isolation wall provided with double-layer air bags and used for a closed wind path roadway of an underground coal mine, and belongs to the technical field of prevention for coal self-combustion in underground coal mines. The temporary isolation wall comprises an air inflation bag body, a fixed assembly and an auxiliary fire extinguishment channel, wherein the air inflation bag body is of a double-layer bag body structure formed by an outer-layer air bag and an inner-layer air bag, the shape of the air-inflated air inflation bag body is a cylindrical structure, the outer-layer air bag is prepared from fireproof EVA foaming cotton, and the inner-layer air bag is prepared from compact asbestos cloth; and the fixed assembly comprises a connection rope and afixed pile, an air inflation port is formed in the central position of the bottom surface of the inner-layer air bag, the air inflation port is connected with an air inflation pump through a pipeline,and an exhaust valve is arranged at a part adjacent to the air inflation port. The isolation wall is simple in structure, convenient to install, efficient and convenient, and capable of saving manpower and material resources.
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Description

technical field

[0001] The invention relates to the technical field of prevention and control of underground coal spontaneous combustion in coal mines, in particular to a temporary separation wall used in underground coal mines. Background technique

[0002] Building a temporary firewall is one of the important measures for underground fire prevention and extinguishing. It can cut off the ventilation and oxygen supply of the fire point and avoid the spread of harmful gases generated by the fire point.

[0003] The technologies and equipment for building temporary firewalls in the prior art mainly include:

[0004] Application number 201811225056.1 discloses an underground fire prevention method in coal mines, including a gas pressure regulating chamber and a gas monitoring system. Inflammable gas detectors and infrared sensors are installed at each monitoring point, and an alarm controller is connected near the combustible gas detectors, and the alarm controller is connecte...

Examples

Embodiment Construction

[0031] The present invention proposes a double-layer airbag-type temporary partition wall for closed wind tunnels in coal mines. In order to make the advantages and technical solutions of the present invention clearer and clearer, the present invention will be described in detail below in conjunction with specific examples.

[0032] combine Figure 1 to Figure 3 As shown, the present invention is a kind of double-layer airbag type temporary partition wall used for closed wind roadways in coal mines, including an inflatable bag body 1, a fixed assembly 3 and an auxiliary fire extinguishing channel 124, and the inflatable bag body is composed of an outer layer air bag 11 and an inner layer air bag. The double-layer capsule structure formed by the layers of airbags 12 adopts the double-layer capsule structure, which makes the firewall more stable and has a higher safety factor. If an accidental rupture occurs, no excessive gas shock waves will be generated; when inflated, the shap...