谢桥新选煤厂煤泥水系统的优化设计

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。

Optimized design and improvement of Slurry System in Xieqiao New-built CHPP

It is hard to realize closed-circuit of slurry system in CHPP design and production, and this is also a major issue for environmental protection. Based on its coal characteristics, slurry system was optimized design and improvement in Xieqiao CHPP after fully absorbing and referring multi-CHPPs and Xieqiao existing CHPP in Huainan Coal Mine district. The system adopts “primary thickener + secondary thickener + purifying thickener” process, moreover, multi-function slurry purification and regeneration process and technology was successfully used in this plant, it is a reasonable and reliable system to keep water balance of whole plant, to realize closed circuit thoroughly, and zero emissions. It is proved in practice that the slurry system kept closed circuit, reached No.1 standard, and achieved significant effect on environment protection.