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一、前言澜泥坪选矿厂的入选矿石在我局有它的特殊性。一方面矿石含炭质高,炭易上浮并吸附大量的选矿药剂,分选不好;硫化铜矿物(特别是黄铜矿)嵌布粒度很细,在磨矿翅程中很难单体解离完全,连生体多;脉石中有少量呈层状的铝硅酸盐(如绢云母),在磨矿过程中容易泥化。上述原因造成铜精矿品位一直是难以提高。为了消除炭泥质的影响,生产上曾用过羧甲基纤维素和腐植酸钠,都获得不同程度的效果。
First, the preface Lan Naping beneficiation ore selection in our bureau has its own particularity. On the one hand, the ore contains high carbonaceous content, the carbon is easy to float and adsorbs a large amount of beneficiation agent, the sorting is not good; the copper sulfide minerals (especially chalcopyrite) Dissociation completely, even the body more; gangue in a small amount of layered aluminosilicate (such as sericite), easy to mud in the grinding process. Copper concentrate grade caused by the above reasons has been difficult to improve. In order to eliminate the impact of carbon mud, used in the production of carboxymethyl cellulose and sodium humate, have varying degrees of effect.