论文部分内容阅读
东鞍山烧结厂所需矿石来源于东鞍山铁矿。该矿的矿石属于细粒浸染状,在选别之前须磨至-0.074毫米,通过率85%以上,使有用矿物单体分离。然后用脂肪酸类型药剂做捕收剂,采用全、正浮选流程进行选别。由此构成的精矿矿浆具有细而粘的特点。由于细颗粒矿物难以过滤和沉降,进入过滤机后,-18微米的有用矿物通过溢流返回浓缩机。这一恶性循环造成了精矿流失。由于矿石性质多变,因而精矿流失量也不均衡。现行脱水工艺该烧结厂的选矿部分,长期以来采用两段浓缩过滤流程(图1)。
Dong Anshan sinter plant required ore from the East Anshan Iron Ore. The ore ore belongs to the fine disseminated shape, before sorting do not have to mill to -0.074 mm, through the rate of 85% or more, the useful mineral monomer separation. Then use the type of fatty acid collector do collector, using the whole, are the flotation process sorting. The resulting concentrate slurry has the characteristics of fine and sticky. As fine-grained minerals are difficult to filter and settle, after entering the filter, -18 microns of useful minerals are returned to the thickener via overflow. This vicious circle caused the loss of concentrate. Due to the varying nature of the ore, the amount of concentrate lost is also not balanced. The current dehydration process The sintering plant beneficiation part, has long been the use of two stages of concentration and filtration process (Figure 1).