School of Energy Engineering,Xi'an University of Science and Technology MOE Key Lab of Mining and Disaster
Prevention in Western Mine Department of Production and Technology,Shenhua Ningxia Coal Group Co. ,Ltd.
Baiigou Mine,Shenhua Ningxia Coal Group Co. ,Ltd.

为了有效防治煤矿矸石山的自燃,以白芨沟煤矿南四矸石山自燃火区为研究对象,根据矸石山的自燃特点,采用红外成像技术及远程温度监测技术对煤矸石自燃范围和程度进行了探测,根据测定的矸石山深孔及浅孔的温度分布情况,制定并实施了以"黄土覆盖、黄土隔离和灌注泥浆"为主的综合治理技术措施,有效抑制了煤矸石火区的供氧,阻止了火区的进一步发展,并通过降低火区高温直接灭火,且消除了井下影响2521工作面上隅角的CO,有效保证了工作面的安全回采。

In order to effectively prevent and control the spontaneous combustion occurred on the mine coal waste pile,based on South No.4 coal waste spontaneous combustion fire zone in Baijigou Mine as a study object, according to the spontaneous combustion features of the mine coal waste pile,an infrared imaging technology and a remote temperature monitoring and measuring technology were applied to detect the spontaneous combustion scope and degree of the coal waste. According to the measu red temperature distribution conditions of the deep borehole and shallow borehole in the coal waste pile,a comprehensive control technical measures mainly with"loess CoV ered,loess isolation and loess grouting"were designed and implemented. The oxygen supply in the coal waste fire area was effectively restrained and the fire area to be furt her developed was prevented. With the reduction of the high temperature in the fire area and the direct fire extinguishing,the CO at the upper corner of No. 2521 coal minin g face affected by the surface coal waste fire was eliminated and the safety mining of the coal mining face could be ensured.

国家自然科学基金资助项目(51404195,51404192)；陕西省教育厅科研计划资助项目(12JK0784)；