Outburst pre-warning device and method of coal mine driving face based on infrared ray

Abstract

The invention discloses an outburst pre-warning device and method of a coal mine driving face based on infrared ray. The outburst pre-warning device comprises a coal roadway left wall and a coal roadway right wall, an infrared transmitter (1) is installed on the coal roadway left wall, an infrared receiver (2) is installed on the coal roadway right wall, and the infrared transmitter (1) and the infrared receiver (2) are oppositely installed; the power supply ends of the infrared transmitter (1) and the infrared receiver (2) are connected with the power supply output end of an explosion-proof storage battery device (5) through an explosion-proof cable (9); and the infrared receiver (2) is connected with the control end of an explosion-proof acoustooptic alarm device (6). According to the outburst warming device, a series of accidents caused by coal (rock) burying, gas-inhalation suffocating and outburst due to short reaction time and insufficient evacuation time when outburst occurs inan existing technology driving face are solved; and the technical problem that workers in roadways are timely informed to reduce reaction time, and thus more evacuation time is strived for is solved.

Description

technical field [0001] The invention belongs to mining instrumentation and outburst prevention technology, in particular to an infrared-based outburst warning device and method for coal mine excavation working face. Background technique [0002] Coal and gas outburst (hereinafter referred to as "outburst") is a dynamic disaster phenomenon. As the coal mine extends deeper, the possibility of outburst increases. Especially in the process of coal roadway excavation, outburst accidents occur frequently, causing casualties and coal mining enterprises suffer heavy property losses. When an outburst occurs, the powerful power throws coal and rocks out in a very short time, and a large amount of gas is ejected. The huge energy causes damage to the roadway and ventilation system, and a large amount of coal, rocks, and gas are ejected at an extremely fast speed. It may congest the roadway, causing suffocation and gas explosion, burning and coal (rock) burial accidents. When an outbur...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an infrared-based early warning device and method for coal mine excavation working face protrusion, so as to solve the problem of personnel being trapped by coal (rock) due to short reaction time and insufficient evacuation time when the excavation working face of the prior art is protruding. ) buried people, gas inhalation, suffocation and a series of accidents caused by outburst; solve the problem of early warning and alarm by throwing out coal rocks at the moment of outburst, and timely notify the workers in the roadway to reduce the reaction time, thus gaining more evacuation time and other technical issues

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