采矿与安全工程学报2013，Vol.30Issue(2)：311-316,6.
近距离煤层综放面瓦斯与煤自燃复合灾害防治技术研究
Prevention and control technique of complex disaster caused by gas and spontaneous combustion for fully-mechanized sublevel caving face in close-distance seams
摘要
Abstract
In this paper, to solve the great hidden danger caused by complex disasters of gas and spontaneous combustion which may exist in the production process of high gas and easily spontaneous combustion coal seam, based on the study of gas occurrence regularity and coal spontaneous combustion characteristics in anomaly gas zones of Fucun Coal Mine, the stereo gas drainage system in condition of "W- type" ventilation mode was established, which containing the staggered high-level gas , drainage, bypass tendency high-level gas drainage, and gas drainage near goaf areas, etc. Meanwhile, the "inject-plug" packaged key technology of fire prevention and extinguishing was put forward , in which three-phase foam was used to cover float coal in goaf, noncombustible high multiples curing bubble was used to plug the air leakage location rapidly, nitrogen was injected to make easily sponta-neous combustion area inerting, and plastic sodium silicate was injected into the back of hydralic support to stop loopholes and lower temperature, etc. In addition, according to the phenomenon that coal combustion may easily be induced in the gas drainage process, the "drainage-inject" integration method was presented to control the gas and spontaneous combustion in the goaf simultaneously, in which bypass high-level drilling holes were used for gas drainage, and large flow three-phase foam was injected through the gas drainage holes, etc. The key techniques mentioned above were used successfully during the prevention and control of gas and spontaneous combustion in the fully-mechanized sublevel caving face of the lower No.3 coal seam in Fucun Coal Mine, and have achieved remarkable application effects, which effectively solved the gas problems in the coal face and greatly reduced the coal combustion risk in goaf, and can have widely application prospect.关键词
近距离煤层/采空区/瓦斯/煤炭自燃Key words
close-distance seams/ goaf/ gas/ spontaneous combustion of coal分类
矿业与冶金引用本文复制引用
秦波涛,鲁义,殷少举,曹凯,王美光..近距离煤层综放面瓦斯与煤自燃复合灾害防治技术研究[J].采矿与安全工程学报,2013,30(2):311-316,6.基金项目
教育部新世纪优秀人才支持计划项目(NCET-09-0729) （NCET-09-0729）
国家自然科学基金项目(50904066) （50904066）
全国优秀博士论文专项基金项目(2007B53) （2007B53）
江苏高校优势学科建设工程项目 （）
