我厂是个处理量为500吨的湿法冶炼厂,也叫氨浸厂。处理个旧选厂重选尾矿,粒度细,—0.074m/m占70%左右。冶炼工艺流程分为二段。原矿用水采、水运到本厂经浓密机浓缩后进入干燥窑干燥得0～10%水分的矿,再经还原窑还原焙烧,还原效率达70—90%。如火法工段焙烧出来的矿在常温常压下用碳酸氢铵(NH_450—70g/l、CO_220—25g/l)溶液三段浸出。渣经四段洗涤后作为尾矿,浸出 I plant is a capacity of 500 tons of wet smelter, also known as ammonia leaching plant. Processing Gezhong plant re-election tailings, fine grain size, -0.074m / m accounted for about 70%. Smelting process is divided into two sections. Raw ore water mining, water transported to the factory concentrated by the thickener into the drying kiln was 0 to 10% moisture in the ore, and then reduced roasting reduction, reduction efficiency of 70-90%. Such as fire method section of the roasting out of the ore at room temperature and pressure with ammonium bicarbonate (NH_450-70g / l, CO_220-25g / l) three leaching solution. Slag after four paragraphs as tailings, leaching