安徽开发矿业有限公司一期60万t/a选矿车间于2006年建成,待加工原料为镜铁矿(属弱磁性矿)。2007年进行试验性生产,经过几次试生产,发现过滤系统无法满足实际生产需要。1 存在的问题过滤系统现用的精矿浓缩机为NZ-12型中心传动提耙浓缩机,2台浓缩机最大处理量为500 t/d,实际需要处理精矿762.2 t/d,精矿浓缩机处理能力严重不足。现有2台GN-40型筒型内滤真空过滤机,精矿含水量在13%以上,滤布损耗大,维修工作量大。现用过滤机单台最大处理量为24 t,而实际精矿处理量 Anhui Development Mining Co., Ltd. a 600,000 t / a dressing plant was completed in 2006, to be processed raw materials for the mirror iron ore (a weak magnetic ore). Experimental production in 2007, after several trial production, found that the filtration system can not meet the actual production needs. 1 Existing Problems The concentrating concentrator currently used in the filtration system is the NZ-12 type center drive rake concentrator. The maximum capacity of two concentrators is 500 t / d, and the actual need to process concentrates is 762.2 t / d, concentrate Concentrator processing capacity is seriously inadequate. The existing two sets of GN-40-type tube filter vacuum filter, the concentrate moisture content of more than 13%, filter cloth loss, maintenance workload. The current filter capacity of a single unit of 24 t, while the actual amount of concentrate processing