低变质煤层工作面CO负压引排可行性研究  

Feasibility Study on CO Negative Pressure Drainage in Low Metamorphic Coal Seam Working Faces

作　　者：路宁 师吉林 王永敬 Lu Ning;Shi Jilin;Wang Yongjing(State Grid Energy Hami Coal Power Co.,Ltd.,Dananhu No.1 Mine,Xinjiang Hami 839000;China Coal Science and Engineering Group,Shenyang Research Institute Co.,Ltd.,Liaoning Fushun 113122;State Key Laboratory of Coal Mine Safety Technology,Liaoning Fushun 113122)

机构地区：[1]国网能源哈密煤电有限公司大南湖一矿,新疆哈密839000 [2]中煤科工集团沈阳研究院有限公司,辽宁抚顺113122 [3]煤矿安全技术国家重点实验室,辽宁抚顺113122

出　　处：《山东煤炭科技》2023年第6期98-100,共3页Shandong Coal Science and Technology

摘　　要：为了解决低变质煤层工作面回风隅角CO超限问题,在大南湖一矿利用引排风机进行了回风隅角CO负压引排可行性验证试验。试验证明抽放治理CO超限是可行的,据此设计了大南湖一矿负压引排系统,并提出了回风隅角CO负压引排无分支插管引排和多分支插管引排两种引排方法。经现场应用,回风隅角CO浓度由1.2×10^(-4)以上降至2.4×10^(-5)以下。In order to solve the problem of CO exceeding the limit at the return air corner of the low metamorphic coal seam working face,a feasibility verification test is conducted on the negative pressure exhaust of CO at the return air corner using an exhaust air fan in Dananhu No.1 Mine.The test proves that the extraction and administer of CO exceeding the limit is feasible.According to this,a negative pressure exhaust system is designed for Dananhu No.1 Mine,and two exhaust methods are proposed:the negative pressure exhaust of CO at the return air corner without branch intubation exhaust and multi branch intubation exhaust,after on-site application,the CO concentration at the return air corner decreased from 1.2×10^(-4) above to 2.4×10^(-5) below.

关 键 词：低变质煤层 回风隅角 负压引排 可行性验证 CO超限 

分 类 号：TD752.2[矿业工程—矿井通风与安全]