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在泉沟煤矿建成400kVA的直流矿热炉,以煤矸石等为原料冶炼Al35Si30Fe,论述了配方计算、生产操作技术及经济效益
400kVA direct-current hot-blast furnace was built in Quanguang Coal Mine and Al35Si30Fe was smelted with coal gangue as the raw material, and the formula calculation, production operation technology and economic benefit were discussed