Simulation test method for oxidation and temperature rise of residual coal based on actual measurement of air parameters in goaf
An air parameter and simulation test technology, which is applied in the field of research on the prevention and control of spontaneous combustion of coal leftovers in goafs of coal mines, can solve the problems of difficult to achieve accurate analysis, measurement errors interfere with measurement, complex and changeable environment, etc., and achieve convenient observation and accurate detection. The effect of analysis, less environmental interference factors, convenient and quick operation
Inactive Publication Date: 2019-02-12
CHINA UNIV OF MINING & TECH (BEIJING)
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Problems solved by technology
However, it is difficult to achieve accurate analysis of the oxidation and temperature rise process of the goaf coal in the working face under a specific mining condition through traditional beam tube monitoring, and the environment in the gob is complex and changeable, and measurement errors have caused serious problems for the determination. large interference
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[0031] The present invention provides a simulated test method for residual coal oxidation and temperature rise based on the actual measurement of air parameters in goafs. The following drawings and examples are used to practically apply this technology with the mining of the S1 coal seam 3302 working face of a certain mine as the engineering background. The technical scheme of the present invention is further described in detail.
[0032] A simulated test method for oxidation and temperature rise of residual coal based on the actual measurement of air parameters in goafs, characterized in that the main operation steps are as follows:
[0033] Step 1, goaf air parameter collection, which includes the following sub-steps:
[0034] a The 3302 working face is 160m long, combined with the mining and equipment conditions of the working face, the working face is divided into 9 nodes I 1 , I 2 ,..., I 9 ;
[0035] b Arrange a bundle of tubes along the 3302 working face, and each n...
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The invention discloses a simulation test method of residual coal oxidation temperature rising based on actual measurement of air parameters in a goaf area and belongs to the research field of coalmine goaf area residual coal spontaneous combustion prevention and control. The method includes the following steps: measuring and obtaining real air parameters in the goaf area by a beam tube monitoring method; drawing a curve of the air parameters in the goaf area, wherein the air parameters are varied with time; programming a servo control program by using a computer, and then conducting a residual coal oxidation temperature rising simulation test to obtain a temperature and indicator gas concentration changing curve of the residual coal of the goaf area in the working face advance process; analyzing the oxidation temperature rising characteristic and change rule of the residual coal of the goaf area. The method can be used for performing scientific observation and measurement and accurate analysis on the oxidation spontaneous combustion characteristic of the residual coal of the goaf area, and therefore a deep research on spontaneous combustion disaster prevention and control of the residual coal of the goaf area is convenient to perform.
Description
technical field [0001] The invention belongs to the research field of prevention and control of spontaneous combustion of residual coal in goafs of coal mines, and in particular relates to a simulated test method for oxidation and temperature rise of residual coal based on actual measurement of air parameters in goafs. Background technique [0002] In the production process of the coal mining industry, the spontaneous combustion of residual coal in goafs poses a great threat to the safe mining of coal seams. The residual coal in the goaf is oxidized and heated to spontaneous combustion, leading to a fire in the gob. The high temperature and a large amount of toxic and harmful gases seriously damage the life and health of the underground workers and damage the working face equipment, causing huge economic losses. Studying the characteristics of oxidation and temperature rise of residual coal in goaf is helpful to guide the prevention and control of spontaneous combustion of r...
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IPC IPC(8): G01N25/22
CPCG01N25/22
Inventor 吴兵黄启铭
Owner CHINA UNIV OF MINING & TECH (BEIJING)