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CHARGE FOR MANUFACTURING FERROSILICON

机译:制造Ferrosilicon的费用

摘要

The present invention relates to metallurgy, manufacturing ferroalloys, in particular, to manufacturing ferrosilicon. The invention describes the charge composition for manufacturing ferrosilicon, which includes quartzite, a carbonaceous reducing agent and the ferruginous material, the ferruginous material being the pyrite cinder pellets with the following ratio of components, wt%: the quartzite - 34-50, the carbonaceous reducing agent - 30-34, the pyrite cinder pellets - the rest. The shavings of carbonaceous steels as a component of the charge are absent. At the same time, the carbonaceous reducing agent contains in wt%: the nut coke - 40-67 and the wood wastes -33-60, the wood wastes being the pellets or the chips. At the same time, the pellets contain the pyrite cinder and the liquid glass as a binder with the following ratio of components, wt.%: the pyrite cinder - 85-93, the liquid glass - 7-15, on a dry basis. The technical result is in expanding the charge compositions range, using the cheap and non-scarce raw materials and improving the operating performance of a furnace device by using in the process of the ferrosilicon manufacture the charge composition having low electrical conductivity, which leads to an increase in silica recovery, while increasing the charge filter layer and to a decrease in the formation of the non-technological slag and, as a result, to a possibility of the furnace transformer operation at a higher voltage level, which increases the electrical efficiency of the furnace device.
机译:本发明涉及冶金,制造铁合金,特别是制造铁硅氧烷。本发明描述了制造硅铁的电荷组合物,其包括石英岩,碳质还原剂和铁素材料,铁素材料是硫铁矿夹粒颗粒,其具有以下成分比例,重量%:四芳基 - 34-50,碳质还原剂 - 30-34,黄铁矿煤渣颗粒 - 其余的。不存在作为电荷的成分的碳质钢的刨削。同时,碳质还原剂含有wt%:螺母焦炭 - 40-67和木材废物-33-60,木材废物是颗粒或芯片。同时,颗粒含有硫铁矿煤渣和液体玻璃,其具有以下成分的比例,重量%:硫铁矿 - 85-93,液体玻璃 - 7-15,干基。技术结果在扩大电荷组合物范围,使用廉价和非稀缺的原料并通过在硅铁制造具有低电导率的电荷组合物的过程中提高炉装置的操作性能,这导致了二氧化硅恢复的增加,同时增加电荷滤光层,并因此增加非技术渣的形成,并且因此,在较高的电压水平下的炉变压器操作的可能性增加,这增加了电效率炉装置。

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