Underground coal mine explosion-proof method

A technology for coal mines and fire doors, which is applied in the direction of dust prevention, mining equipment, mining equipment, etc., can solve the problems of not being too large in diameter, entering and exiting fires, and the gas concentration of the main exhaust pipe exceeding the standard, so as to improve the barrier effect and prevent large AoE gas explosion effect

Inactive Publication Date: 2018-10-12
杨帅
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Problems solved by technology

[0003] In the prior art, in order to prevent the occurrence of gas explosion accidents, on the one hand, a plurality of gas monitoring sensors are arranged underground, and an alarm is issued when the gas concentration exceeds the standard is detected; Exhaust to the outside of the well, because the exhaust fan will inhale a large amount of flammable gas gas and air from

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[0019] In order to make the above objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the above and other objects, features and advantages of the present invention will be more clear. The same reference numerals refer to the same parts throughout the drawings. The drawings are not intentionally drawn to scale, emphasis instead being placed upon illustrating the subject matter of the invention.

[0020] first combine figure 1 , make an overall introduction to the coal mining system of the present invention. The coal mining is carried out in the roadway 2, the roadway 2 extends to the fully mechanized mining face, the shearer 6 is located at the fully mechanized mining face, and the fully mechanized mining operation is realized by the shearer, and a dust removal device 8 is also installed at the fully...

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Abstract

The invention discloses an underground coal mine explosion-proof method. Under normal conditions, a fire door (10.2) is in the opening state, an electric valve (10.8) is closed, a main gas inlet pipe(6.9) does not communicate with an exhaust pipe (10), when the gas concentration in the main exhaust pipe (10) is detected to be too high by a gas concentration sensor (10.1), a controller (10.3) drives the electric valve (10.8) to open, the main gas inlet pipe (6.9) communicates with the main exhaust pipe (10), and fresh air in the main gas inlet pipe (6.9) enters the main exhaust pipe (10) to reduce the gas concentration in the main exhaust pipe (10); and if a temperature sensor (10.4) or a pressure sensor (10.5) detects abnormal temperature and pressure inside the pipe, the controller (10.3) determines the occurrence of a gas explosion and sends a signal to control the electric valve (10.8) and the fire door (10.2) to be closed and turn on spray headers (10.6) and a powder blower (10.7). The underground coal mine explosion-proof method can effectively prevent the occurrence of the underground gas explosion.

Description

technical field [0001] The invention belongs to the field of coal, in particular to an underground explosion-proof method for coal mines. Background technique [0002] Coal is the main energy source in my country's mineral resources, and it is also an important industrial raw material for electric power, steel, chemical industry and other industries. It has a very important strategic position in the national economic construction. According to statistics, coal accounts for more than 75% of my country's primary energy consumption. With the global energy crisis, coal's status as my country's main energy source is difficult to change for a long time. Coal production is still a high-risk industry due to harsh working conditions and low reliability and automation of mining equipment. Accidents such as gas explosions in coal mines, rock collapses, and water inrushes occur from time to time. [0003] In the prior art, in order to prevent the occurrence of gas explosion accidents,...

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Application Information

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IPC IPC(8): E21F5/08E21F17/103
CPCE21F5/08E21F17/103
Inventor 杨帅其他发明人请求不公开姓名
Owner 杨帅
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