易自燃厚煤层综放工作面快速回撤技术及实践

doi:10.11799/ce201504021

煤炭工程 ›› 2015, Vol. 47 ›› Issue (4): 63-65.doi: 10.11799/ce201504021

易自燃厚煤层综放工作面快速回撤技术及实践

李志刚

北京华宇工程有限公司矿山一所采矿室

收稿日期:2014-07-16 修回日期:2014-09-01 出版日期:2015-04-10 发布日期:2015-04-10
通讯作者: 李志刚 E-mail:lizhigangcumtb@163.com

Quick recovery technologies and practice of fully-mechanized caving mining face in easily spontaneously combustible and thick coal seam

Received:2014-07-16 Revised:2014-09-01 Online:2015-04-10 Published:2015-04-10

摘要/Abstract

摘要： 针对砂墩子矿厚煤层综放开采，煤层自然发火期短，对回撤时间要求严格的情况，采取了加强端头顶板管理、将液压支架作为掩护支架支撑回撤迎头空间，注氮与注阻化剂、黄泥胶体、黄泥灌浆等综合防灭火措施在内的综合方案，实现了工作面25d完全回撤，为后续及类似条件工作面回撤提供了经验。

关键词: 厚煤层, 易自燃, 掩护支架, 防灭火, 工作面回撤

Abstract: The mining way in Shadunzi coalmine is fully mechanized caving mining of thick coal seam. The spontaneous combustion period of 4# coal seam is short, which makes working face recovery time tight. Comprehensive plan including strengthening roof control of termination, hydraulic support as shield supporting recovering space and comprehensive measures against fire of nitrogen injection with inhibitor injection, yellow mud Colloids injection and mud grouting was carried out. Only 25 days were used to complete the whole recovery of N4002 working face, which provided experience learning for recovery of followed or similar working faces.

Key words: hick coal seam, easily spontaneously combustion, shield support, fire prevention and extinguishing, quick recovery

中图分类号:

TD262|TD75

陈永银. 易自燃厚煤层综放工作面快速回撤技术及实践[J]. 煤炭工程, 2015, 47(4): 63-65.

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易自燃厚煤层综放工作面快速回撤技术及实践

Quick recovery technologies and practice of fully-mechanized caving mining face in easily spontaneously combustible and thick coal seam

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