blast furnace
工业科技

        A furnace for producing iron from iron(Ⅲ)oxide. A mixture of the orewith coke and a flux is heated by pre-heated air blown into the bottom of the fur-nace.The flux is often calcium oxide (fromlimestone).Molten pig iron is run off fromthe bottom of the fur......（本文共 283 字）     [阅读本文] >>