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用价廉量多的近期煤炼焦(特别是半焦)来生产铁合金是比较有前途的。安加拉半焦是一种反应性能强,比电阻大,灰分含量高(平均为27%)的还原剂,1968年首次在库兹涅茨科铁合金厂得到了应用。安加拉半焦的灰分中含有75%SiO_2和0.03%P_2O_5。挥发性物质的含量较高,但其中没有焦油,所以在冶炼过程中没有带来工艺上的困难。应用安加拉半焦可较大地改善75%FeSi 的冶炼工艺制度和技术经济指标,目前在
With the recent cheap coal coking (especially semi-coke) to produce ferroalloy is more promising. Angala semi-coke is a reductant with high reactivity, high specific resistance and high ash content (27% on average), which was first applied in Kuznetsko Ferroalloy Plant in 1968. Angara charred ash contains 75% SiO 2 and 0.03% P 2 O 5. High levels of volatile materials, but no tar, so in the smelting process did not bring the technical difficulties. Applied Angala semi-coke can greatly improve the process of smelting 75% FeSi technology and economic indicators, at present