兴安选煤厂是上世纪50年代末投产的老厂,历年来进行多次技术改造,主要侧重于主选系统的改造,使主选系统达到了国际先进水平,但煤泥水回收处理系统依然停留在落后的技术水平上,整体工艺不配套,造成浮选精煤回收率不高,产品水分不达标,煤泥水大量外排等问题,不但制约了洗煤生产、 Xing’an Coal Preparation Plant is an old plant put into operation in the late 1950s. Over the years, it has carried out several technological improvements mainly focusing on the revamping of the main selection system, bringing the main selection system to the advanced international level, but the slime recovery system remains In the backward technological level, the overall process is not complete, resulting in flotation of coal recovery is not high, the product moisture standards, a large number of efflux of slime water and other issues not only restricted the coal washing production,