黄骅港三期筒仓储煤自燃预警方法研究及应用

doi:10.11799/ce201407035

Abstract

Abstract:

Based on the early warning of spontaneous combustion coal in the process of Huanghua Port 3rd phase silo coal storage, Shenyou-2 and Waigou-1 were selected to carry on the experiment of programmed heating, obtaining the various indicators of oxidative pyrolysis gases and analyzing their variation with temperature. Results showed that CO、C2H4、C2H6 and C2H4/C2H6、ΔCO/ΔO2 changed with the coal temperature and showed good regularity. Through the mutation of CO in 60℃, the silo emptying critical temperature of two kinds of coal was set at 60℃. At the same time, combined with safety device of the existing analysis of silo, we analyzed the temperature monitoring and early warning index gases as a warning method of silo coal storage spontaneous combustion. Carrying on the real-time monitoring to the temperature of coal transport in and out, the content of index gases and coal temperature in the process of coal storage, as well as setting the appropriate alarm threshold may have certain guiding significance for the safety in production.

Key words: Silo coal storage, coal spontaneous combustion, temperature, indicator gas, early warning method

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URL: http://www.coale.com.cn/EN/10.11799/ce201407035

http://www.coale.com.cn/EN/Y2014/V46/I7/107

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Study and application on coal spontaneous combustion prediction method of Huanghua Port 3rd phase silo coal storage

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