Coal mine mining stopping surface temperature monitoring and gas collection analysis system,

Abstract

The invention discloses a coal mine mining stopping surface temperature monitoring and gas collection analysis system, which is characterized in that a drill rod type temperature and gas collection device is arranged in the coal body of a coal mine working surface, and collects the temperature in the coal body and the gas in the coal body; the temperature in the coal body is transmitted to a substation (4) through a temperature digital display instrument (7) and a signal converter (6), the gas in the coal body is pressed into an airbag (15) through a compression rubber ball (14); a plurality of exchangers are respectively arranged under the coal mine and on the ground, and co-construct an annular communication network (3); and the substation (4) transmits to a monitoring host machine (1) arranged on the ground through the annular communication network (3). With the coal mine mining stopping surface temperature monitoring and gas collection analysis system of the present invention, the temperature and various gas concentrations in the coal body positioned at the coal mine mining stopping surface can be accurately measured, and the temperature in the coal body can be real-timely monitored in the ground control room and the underground cavity, such that the place possibly occurring the coal autoignition accident can be accurately predicted in advance so as to provide the reliable data support for the development of the effective fire prevention and fire extinguishing measures.

Description

technical field [0001] The invention relates to the technical field of underground temperature measurement and air detection in coal mines, in particular to a temperature monitoring and gas acquisition and analysis system for a coal mine stopped mining face. Background technique [0002] Coal mine shutdown face usually refers to the coal mine working face during the shutdown period. When the underground working face of the coal mine is stopped and moved, the high roof area and the goaf behind the tail beam are the high incidence places of coal spontaneous combustion accidents. Since it is impossible to accurately grasp the specific location of the spontaneous combustion high temperature area through the traditional coal mining process, in most cases, the coal mine can only start after the CO concentration exceeds the standard, the coal body smokes, or even red carbon appears in the coal body when the coal mine is stopped. It is difficult to realize the ground warning of spo...

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Problems solved by technology

[0004] In order to solve the technical problems in the prior art that it is impossible to monitor the internal temperature of the coal body at the stop face of the coal mine on the ground in real time, and it is impossible to accurately predict the location where coal spontaneous combustion accidents may occur in advance, the invention provides a temperature control method for the stop face of the coal mine. The monitoring and gas collection and analysis system can accurately measure the internal temperature of the coal body and the concentration of various gases inside the coal body at the stop mining face of the coal mine, and can monitor the internal temperature of the coal body in real time in both the ground dispatching room and the underground chamber, so that the coal body can be monitored in advance Accurately predict the location where coal spontaneous combustion accidents may occur, and provide reliable data support for the formulation of effective fire prevention measures

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