复杂条件下孤岛综放面自燃防治技术研究

doi:10.11799/ce201509021

Abstract

Abstract: According to the complex characteristic of high ground temperature, high moisture, large amount of float coal in goaf, serious air leak and big fault of 1210 islet fully mechanized caving working face located in the second layer of Mengba mine, the emphasis zones of fire preventing were analyzed. On the basis of CO gas changing of working face during mining, combined with the applicability of different fire preventing technology, the comprehensive measures of prediction, gel injection, nitrogen injection, grouting were taken to interdict the necessary condition of coal spontaneous combustion. And the normal production of 1210 working face was ensured, which provided reference for safe mining of the similar condition working face.

Key words: Coal spontaneous combustion, High temperature, High moisture, Islet fully mechanized caving face, Layer mining, Fire preventing

CLC Number:

TD75+2

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URL: http://www.coale.com.cn/EN/10.11799/ce201509021

http://www.coale.com.cn/EN/Y2015/V47/I9/62

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Application on Fire Preventing Technology of Islet Fully Mechanized Caving Workface under Complex Condition

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