A Method for Determining the Ignition Point of Spontaneous Combustion Coal Gangue

Abstract

The invention relates to a method for determining the ignition point of spontaneously combusted coal gangue. The method combines the surface temperature measurement method of the gangue with the rice temperature measurement method inside the gangue, and finds out the abnormal temperature point of the gangue by rapid surface temperature measurement. The anomalous point layout internal meter temperature measuring surface, compare the temperature gradient change trend between the meter temperature measuring surface and the surface temperature field, use the cross method to move the origin of the coordinates on the three-dimensional scale with the optimization method, until the increment points to or approaches the core point of combustion. The present invention makes up for the deficiencies of individual technologies, and gradually narrows the scope from large to small, so that the present invention can accurately determine the central position and temperature gradient of the ignition point, and provide a basis for subsequent fire extinguishing.

Description

technical field [0001] The invention relates to a method for determining the ignition point, in particular to a method for determining the ignition point of spontaneously combusted coal gangue hills. Background technique [0002] Coal gangue is an associated combustible material in coal mining, and its output accounts for about 10% to 20% of coal output, with an annual output of about 350 to 700 million tons. Due to the low comprehensive utilization rate of coal gangue in my country, the accumulation of coal gangue is inevitable. At present, there is a large amount of gangue dumps in my country, with an accumulation of 5 billion tons. The accumulation of coal gangue has not only caused serious pollution to the environment of the mining area, but also is prone to ecological disasters such as spontaneous combustion, explosion, and collapse. It has become a hot spot and a difficult governance problem at home and abroad. [0003] The key points of comprehensive management of s...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to address the disadvantages of single temperature measurement method currently used, large error between temperature measurement results and actual results, and low accuracy in determining the position of the ignition point, etc., to propose a method that can integrate the advantages of technology, and can accurately determine spontaneous combustion coal gangue mountain fire method

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