摘要:
The raw coal in Wangjialing Coal Preparation Plant is lean coal ( SM), which is a valuable blending coal for coking. The scientific and effective separation process is the guarantee for the maximum coal recovery and the company′s economic benefit. According to the raw coal quality, movable sieve jigger is used to separate the+50mm lump coal, which requires less investment and the water consumption is below 0. 1m3. The 1~50mm coal is separated by heavy medium cyclone primary washing and re-washing, which is flexible, reliable, and of high clean coal recovery, the medium consumption is 1kg/t. The 1~0. 25mm coal is separated by Teetered Bed Separator, the value of Epis 0. 18 and the value of I is 0. 24. The 0~0. 25mm coal is separated by the micro bubble flotation column and the recovery of clean coal is more than 70%. The practice shows that, the Wangjialing Coal Preparation Plant can produce high quality coal with the full-size separation process, and achieve great economic benefits.%王家岭选煤厂入洗原煤煤质属于瘦煤( SM) ,是宝贵的优质炼焦配煤,科学有效的分选工艺是精煤最大回收率和企业经济效益的保证,针对入洗原煤煤质,+50mm粒级块煤动筛跳汰机预排矸工程投资少、吨煤耗水量小于0. 1m3,生产成本低; 1~50mm粒级重介旋流器主再洗灵活可靠,吨煤介耗1kg,精煤回收率高; 1~0. 25mm粒级采用TBS干扰床分选机分选指标Ep值0. 18, I值0. 24,分选效果好; 0. 25~0mm粒级微泡浮选柱分选浮选精煤产出率保持70%以上,实践证明,该厂采用全粒级分选工艺,产品煤数质量指标优良,经济效益显著.