Coal spontaneous combustion monitoring and early warning system in coal mine goaf

Abstract

The invention provides a coal spontaneous combustion monitoring and early warning system for coal mine goaf. The coal spontaneous combustion monitoring and early warning system comprises a distributed temperature sensing optical cable, a multi-parameter monitoring device, an underground looped network switch, a monitoring center switch, a monitoring host and a gas pipe. The multi-parameter monitoring device is provided with an optical cable interface, a sampled gas inlet, a sampled gas outlet, a communication end and a wireless communication end. The distributed temperature sensing optical cable is in signal and electric connection with the optical cable interface of the multi-parameter monitoring device, the gas pipe is connected with the sampled gas inlet and the sampled gas outlet of the multi-parameter monitoring device, the communication end of the multi-parameter monitoring device is in bidirectional signal and electric connection with the underground looped network switch, the monitoring center switch and the monitoring host, and when in use, the wireless communication end of the multi-parameter monitoring device is in wireless communication with a wireless remote control device. By means of the coal spontaneous combustion monitoring and early warning system, wide-range temperature monitoring and remote gas monitoring of beam tubes in the goaf is achieved. In addition, the coal spontaneous combustion monitoring and early warning system for the coal mine goaf is low in deployment cost and good in monitoring and early warning timely performance, stability and reliability.

Description

technical field [0001] The invention relates to the technical field of coal mine safety monitoring, in particular to a coal spontaneous combustion monitoring and early warning system in a coal mine goaf. Background technique [0002] Coal mine goaf refers to the cavity or cavity left after the mining of underground coal or coal gangue in the process of coal mine operation. Due to the existence of combustible materials such as residual coal in the goaf of coal mines, under the conditions of suitable temperature and oxygen concentration, spontaneous combustion is prone to occur, which can easily cause coal mine fires and bring huge losses to coal mines. Therefore, it is necessary to monitor and warn the spontaneous combustion of coal in goafs of coal mines. Coal spontaneous combustion monitoring is to monitor the characteristic information such as temperature rise and gas release in the process of coal spontaneous combustion, and then judge whether spontaneous combustion may ...

AI Technical Summary

Problems solved by technology

Among them, temperature monitoring mainly adopts conventional temperature sensor temperature measurement, infrared temperature measurement or wireless sensor network temperature measurement and other devices. High, complex layout and construction; gas monitoring is mainly carried out through the beam tube monitoring system, but because the monitoring center is set on the ground, the actual monitoring site of the coal mine, the gas sampling point can be as long as 30KM from the monitoring center, so the monitoring data has certain and long-distance pipelines are prone to air leakage, and the sampling points of the bundled pipes are prone to water accumulation and dust accumulation and even damage, which makes the current application status of the bundled pipe monitoring system used in coal mines not good, and even does not play its due role

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