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近年来,随着鞍钢东鞍山铁矿采场的不断降深,难选矿石的采出量逐年增加,对这些难选细粒浸染铁矿石,鞍钢东鞍山烧结厂在入选前必须磨至—0.074 mm达80%以上,矿物才能基本单体解离。同时在浮造过程中采用碳酸钠为调整剂,氧化石蜡皂、塔尔油为捕收剂,增加了矿浆的粘性,造成了浮选精矿浆具有细而粘的特性。尤其是冬季,浮选药剂量加大,矿浆粘性更大,在过滤作业中造成过滤机处理能力下降,给过滤作业和下道工序生产带来较大的困难。为了给细粒难过滤
In recent years, with the continuous reduction of the Anshan Iron & Steel Dongsan Iron Mine, the recovery of refractory ore increases year by year. For these refractory fine-grained iron ores, Anshan Iron & Steel Dong Anshan Sintering Plant must be grinded to - 0.074 mm of more than 80%, the basic monomer to mineral dissociation. At the same time in the floating process using sodium carbonate as a regulator, oxidized paraffin soap, tal oil as a collector, increasing the viscosity of pulp, resulting in flotation concentrate with fine and sticky characteristics. Especially in winter, flotation dose increased, more slurry viscosity, resulting in filter processing capacity of the filter decreased, to the filtration operation and the next production process more difficult. In order to fine particles difficult to filter