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

A determination method, the gangue technology, applied in the field of determination of the ignition point, can solve the problems of low determination accuracy of the ignition point position, single temperature measurement method, large error, etc.
CN104155330BActive Publication Date: 2016-11-09BEIJING ORIENT LANDSCAPE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING ORIENT LANDSCAPE
Publication Date
2016-11-09

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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.
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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...

Claims

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