A temperature monitoring method and monitoring device for a coal mine goaf

Abstract

The invention discloses a coal mine goaf temperature monitoring method and a monitoring device. The method includes the following steps: (1) arranging at least one temperature measuring point in a working face gate road, (2) arranging a fixing support device at the temperature measuring point and arranging a temperature sensing element on the fixing support device, (3) connecting the fixing support device and a protecting element and maintaining a certain height between the temperature sensing element and a baseboard, (4) connecting the temperature sensing element and a signal transmission element, wherein the signal transmission element stretches outside a preset stop line through the fixing support device and the protecting element, (5) gradually embedding the temperature measuring point and the temperature sensing element into a goaf, along with the working face being pushed ahead, and (6) using a signal collection and analysis device for receiving signals transmitted by the signal transmission element, analyzing and obtaining temperature change situations in the goaf, and achieving a monitoring purpose. The coal mine goaf temperature monitoring device comprises the temperature sensing element, the fixing support device, the signal transmission element, the signal collection and analysis device and the protecting element. The coal mine goaf temperature monitoring method and the monitoring device are low in cost, convenient to operate and good in monitoring effect.

Description

technical field [0001] The invention relates to a temperature monitoring method and a monitoring device, in particular to a temperature monitoring method and a monitoring device of a coal mine goaf. Background technique [0002] Spontaneous fire, as one of the five natural disasters in mines, has a very serious impact on my country's coal production. According to statistics, spontaneous combustion fires in coal mines in my country account for about 70% of mine fires, and about 182 spontaneous combustion fire accidents have occurred in 220 fully-mechanized caving faces that have been mined. Some mining areas with serious spontaneous combustion, such as Yanzhou, Fushun, He In mines such as Gang, Yaojie, Yima, Huainan, and Liuzhi, natural fires account for more than 90% of mine fires. According to incomplete statistics, more than 50% of key state-owned coal mines have the risk of spontaneous fire. [0003] The coal body temperature in the goaf is an important parameter to char...

AI Technical Summary

Problems solved by technology

This method uses the method of wireless transmission signal to monitor the temperature. The cost is also very high, and because the wireless signal in the goaf is easily shielded, the transmission signal is extremely poor, which greatly affects the monitoring effect.

At the same time, this monitoring method does not solve the problem that the monitoring is susceptible to roof collapse and water accumulation in the goaf

[0006] In summary, there is no monitoring method and monitoring device with low cost, convenient operation and ideal monitoring effect in the prior art.

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