Coal mine tunnel anti-explosion airtight gasbag

A technology for coal mine tunnels and airbags, applied in mining equipment, mining equipment, earthwork drilling and other directions, can solve the problems of rapid evacuation of disadvantaged personnel, cumbersome construction process, long construction time, etc., to save manpower and time, easy to operate process, The effect of saving operation time

Inactive Publication Date: 2017-05-31
CHINA UNIV OF MINING & TECH (BEIJING)
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AI Technical Summary

Problems solved by technology

The existing roadway sealing technology in our country is mainly an explosion-proof sealing method of sand filling. The construction process is cumbersome and the construction time is too long, which is not conducive to the rapid evacuation of personnel and does not conform to the concept of emergency evacuation.
Moreover, the existing airbag sealing technology usually adopts the structure of a single-layer airbag, which has low strength and is mostly used in the mine fire disaster relief process to block the flow of harmful gases and fail to prevent explosions.

Method used

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  • Coal mine tunnel anti-explosion airtight gasbag

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Embodiment Construction

[0026] The present invention provides an explosion-proof airtight air bag for coal mine roadway. The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and examples, taking the technical application during the mining of the 2201 working face of a certain mine as the engineering background.

[0027] At first the airtight air bag proposed by the present invention is described as follows:

[0028] An explosion-proof airtight airbag for coal mine roadway, its overall shape is similar to a cylindrical rubber airbag, according to different specifications, its length is 4-6m, and the cross-sectional area is 8-14m 2 , its structure mainly includes: an inner airbag 14, an outer airbag, and a gas sample collection tube 10. Combined with the actual size of the 2201 working face along the channel, the cross-sectional area is selected to be 10m 2 , Explosion-proof airtight airbag with a length of 6m.

[0029] ...

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Abstract

The invention discloses a coal mine tunnel anti-explosion airtight gasbag and belongs to the technical field of coal mine disaster prevention and control. The coal mine tunnel anti-explosion airtight gasbag mainly comprises an inner layer gasbag body, an outer layer gasbag body and a gas sample collection pipe. The airtight gasbag adopts an inner and outer double layer gasbag structure, and the outer layer gasbag body is divided into a plurality of interlayers. A mode that explosive gas works on the gasbag is utilized, energy of inner side explosion in the airtight space is consumed completely, and safety of the tunnel airtight outer side space is ensured. Compared with a traditional coal mine tunnel anti-explosion airtight method, the coal mine tunnel anti-explosion airtight gasbag adopts a technique that the inner gasbag body and the outer gasbag body are inflated at the same time, labor and time are saved, disaster relief personnel can quickly complete airtight construction and evacuation as fast as possible, safety and reliability are achieved; and in addition, during using of the airtight gasbag, gas sample collection work of the airtight interior can be conducted, and mine well disaster variation can be analyzed in time.

Description

technical field [0001] The invention belongs to the technical field of coal mine disaster prevention and control, and in particular relates to an explosion-proof airtight air bag for a coal mine roadway. Background technique [0002] In the production process of the coal mining industry, gas and fire are the main natural disasters, causing immeasurable losses to the coal mining industry. In the process of coal mine gas disaster and fire disaster relief, roadway sealing is a very common disaster relief technique. By sealing the roadway, the air flow and heat exchange inside and outside the sealed point are blocked, and the fire or gas explosion is prevented from spreading to a wider range of the mine, so as to ensure the smooth progress of disaster relief work and control the disaster loss to a minimum. The existing roadway sealing technology in my country is mainly an explosion-proof sealing method of sand filling. The construction process is cumbersome and the construction...

Claims

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Application Information

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IPC IPC(8): E21F17/107
CPCE21F17/107
Inventor 吴兵黄启铭马小林
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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