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车河选矿厂处理矿石属锡石一多金属硫化矿石。目前处理细脉带贫矿石,矿石伴生元素多,共生关系复杂,含锡低(0.3—0.4％),锡石粒度细,嵌布粒度极不均匀,属难选矿石。选厂采用以锡为主综合回收,四段磨矿,重-浮-重的主体流程。硫化矿粗精矿经第三段磨矿(磨至-200目占90％以上)作为分离浮选作业的给料。经过分离浮选,分别得到铅锑混合精矿(含铅25％、锑18％)、锌精矿(含锌50％)、硫精矿(含硫45％)、砷精矿(含砷10％)等多种产品。硫浮选尾矿未经浮砷而作为高砷硫精矿产品(含砷3.5％以下,含硫35—40％)。这些产品因矿物硬度有差异,使粒度也不相同。硫精矿粒度比铅锑混合精矿和锌精矿都粗,加上硫精矿较纯,品位高,在浓密机和圆筒过滤机中,沉降速度快,耙子卡死,不易放矿和过
Chehe mineral processing plant ore is cassiterite-polymetallic sulfide ore. At present, the treatment of lean ore with fine veins has many ore-associated elements and complex symbiosis with low tin content (0.3-0.4%), finely ground tinxcel and very uneven distribution of grain size, making it an intractable refractory ore. Processes using tin-based comprehensive recovery, four sections of grinding, heavy - floating - heavy main flow. Sulfide ore crude concentrate through the third paragraph of grinding (grinding to -200 heads accounted for more than 90%) as separation flotation feed. After separation and flotation, lead-antimony concentrate (lead 25%, antimony 18%), zinc concentrate (zinc 50%), sulfur concentrate (sulfur 45%), arsenic concentrate %) And other products. Sulfur flotation tailings arsenic as high arsenic concentrate without arsenic (arsenic 3.5%, sulfur 35-40%). These products due to differences in mineral hardness, so that the particle size is not the same. Sulfur concentrate particle size than lead-antimony mixed concentrate and zinc concentrate are crude, with sulfur concentrate more pure, high grade, thickener and cylinder filter, settling speed, rake stuck, not easy to ore and Too