Early warning device and method for coal and gas outburst

Abstract

The invention relates to an early warning device and method for coal and gas outburst and belongs to the field of technical research of mine instruments and apparatus and outburst-prevention technologies and techniques. The specific working processes comprises the steps that monitoring data of a gas sensor, monitoring data of a wind speed sensor, structure design of a tunneling roadway and coal body industrial analysis parameters are transmitted into a host of the early warning device for coal and gas outburst in real time; through a working face coal body gas analytical mathematical model arranged in a system, the analytical gas content of a tunneling working face coal body in the current position is calculated and obtained; fitting correction is conducted by combining with the gas testing result in a laboratory, and the occurrence condition of original gas of the coal body in front of the working face is obtained in an inversion mode; and then, through an early warning mathematical model arranged in the early warning device and the outburst critical index inspecting result in the laboratory, real-time and continuous operation of the early warning result of coal and gas outburst is realized. The disadvantage that two 'quaternity' is adopted at the present stage, but in the prevention and treatment processes of coal and gas outburst, all-weather, continuous and accurate early warning is difficult to realize is overcome.

Description

Technical field [0001] The invention belongs to the technical research field of mining instruments and outburst prevention technologies and processes, and relates to a coal and gas outburst early warning device and method. Background technique [0002] Since the first coal and gas outburst accident in history occurred in the French Issac coal mine in 1834, coal and gas outburst accidents have also occurred in many coal mining countries in the world, causing significant property and economic losses and personnel casualties. So far, the prevention and control of coal and gas outburst is still a worldwide problem that needs to be solved urgently. [0003] So far, due to the insufficient grasp of the law of coal and gas outbursts in different mining areas and different mining technology conditions, coal and gas outburst accidents still occur from time to time. Only the coal and gas outburst accident in a coal mine in Jilin Province in 2016 as an example , Which caused 12 deaths and a...

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Problems solved by technology

[0003] So far, due to insufficient understanding of the law of coal and gas outbursts in different mining areas and different mining process conditions, coal and gas outburst accidents still occur from time to time. Take the coal and gas outburst accident that occurred in a coal mine in Jilin Province in 2016 as an example , causing 12 deaths and a major safety liability accident with direct economic losses of several million yuan

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