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实现洗水闭路循环是选煤厂设计和生产中的难题,也是一个关系到环境保护的重大问题。针对谢桥新选煤厂自身煤质特点,在充分吸收与借鉴淮南矿区多家选煤厂及谢桥现有选煤厂生产实践的基础上,优化设计与完善了煤泥水系统。该系统采用“一段浓缩机+二段浓缩机+净化浓缩机”工艺,其多功能洗水净化再生工艺技术在该厂中成功应用,为保持全厂洗水平衡,实现洗水彻底闭路循环,达到零排放,提供了可靠保证。
Closed-loop washing water is the design and production of coal preparation plant problems, but also a major issue related to environmental protection. Aiming at the characteristics of its own coal quality in Xieqiao New Coal Preparation Plant, the coal slime water system was optimized and designed on the basis of fully absorbing and referring to the production practices of a number of coal preparation plants in Huainan Mining Area and the existing coal preparation plant in Xieqiao. The system uses “a thickener + two sections of thickener + thickener ” process, the multi-functional water purification regeneration technology in the plant successfully applied, in order to maintain the plant wash water balance, to achieve thorough water closet Circulation, to zero emissions, providing a reliable guarantee.