超磁分离在煤矿矿井水井下处理工程的应用

Engineering Application of Ultra-magnetic-separation Technology in Downhole Treatment of Coal Mine Water

某煤矿矿井水含有大量悬浮颗粒等污染物,通过超磁分离技术在井下直接处理,对处理流程、主要构筑物设计参数、运行效果和技术经济分析等进行了介绍。运行结果表明,矿井水处理后水质优于《煤炭工业污染物排放标准》(GB 20426—2006),实现出水就近回用,运行成本约0. 21元/m^3,运行费用约115万元/a,产生的经济效益为777万元/a,实现了清水入仓、清水上井,对该煤矿企业节能降耗、减污降排产生了良好推动作用。

Coal mine water usually contains a large amount of pollutants such as suspended partic- ulates. Ultra-magnetic-separation technology was adopted to treat the coal mine water directly downhole. The treatment process, design parameters of main structures, operational effects and technical ＆ econom- ic analysis were introduced. The operation result showed that effluent quality of the system was better than Emission Standard for Pollutants from Coal Industry （ GB 20426 - 2006）, and the effluent could be recy- cled locally. The operation cost was about 0.21 yuan/m3. The annual operation cost was about 1.15 mil- lion yuan, and annual economic benefit was about 7.77 million yuan. It had realized the clean water into storage and clean water out of well, and played a positive role in promoting the energy conservation, con- sumption reduction and emission reduction of coal mining enterprises.