Ｄａｎａｒｅｘ直接还原法是在竖炉中采用球团和天然气 ,喷吹氧气 ,使取消重整装置和提高还原气温度成为可能。产品 ,即所谓的ＳｕｐｅｎＭｅｔａｌｉｃ,是一种很纯的铁源 ,不需要压块和另外钝化 ,碳含量为 1 5 %～4 0 %。因此 ,这种方法虽然不采用粉煤或粉矿 ,但投资和生产费 Danarex direct reduction method is the use of pellets and natural gas in the shaft furnace, blowing oxygen, making it possible to cancel the reformer and increase the temperature of the reducing gas. The product, so-called SupenMetalic, is a very pure iron source that does not require briquetting and additional passivation and has a carbon content of 15% to 40%. Therefore, although this method does not use pulverized coal or powder ore, but the investment and production costs