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一、前言 近年来,在我车间烧结机鼓风烧结—鼓风炉还原熔炼生产粗铅过程中,为了获得更好的经济效益,要求增产粗铅含金。 在几年的技术工作中,采用高硅高钙渣型,取代长期延用的硅铁持平渣型,使高硅金精矿(金铅精矿)投入量逐年提高,烧结混合料含金,由78年的4.24克/吨,增加到1984～1985年的平均11.60克/吨。粗铅含金产量成倍增加。于此同时,我们充分采用原料自身造渣成份,以金精矿所含高硅为硅酸熔剂,取缔了硅酸熔剂,节省了生产粗铅熔剂费。
I. Introduction In recent years, in my workshop sintering machine blast sintering - blast furnace smelting reduction of crude lead production process, in order to obtain better economic efficiency, require the production of crude lead-containing gold. In a few years of technical work, the use of high-calcium high-calcium slag type, instead of long-term use of ferrosilicon flat slag type, the high silicon gold concentrate (gold lead concentrate) into the volume increased year by year, the sintering mixture containing gold, From 4.24 g / t in 78 years to an average of 11.60 g / t in 1984 ~ 1985. Crude lead and gold production doubled. At the same time, we make full use of raw materials, slag making ingredients to gold concentrate containing silicon as silicate flux, banned silicate flux, saving the production of crude lead flux fee.