| 利用状况各种炼钢方法利用废钢的程度是不同的 |
| 添加时间：2019/8/27 14:36:31 浏览次数： |
| 利用状况各种炼钢方法利用废钢的程度是不同的。氧气转炉炼钢一般可用15～25％的废钢，采用预热废钢技术则可用废钢30～40％；平炉炼钢理论上可以100％用废钢，但一般用量为20～60％；电弧炉炼钢几乎全部利用废钢作原料。废铁一般作高炉炼铁或铸铁原料，少量干净废铁也用作炼钢原料。大型钢铁联合企业炼钢原料以生铁为主，以废钢为辅。独立钢厂、特殊钢厂和近年发展起来的小钢厂都以废钢为主要原料。 The degree of utilization of scrap steel by various steelmaking methods is different. Oxygen converter steelmaking can generally use 15-25% scrap, preheating scrap technology can use 30-40% scrap, open-hearth steelmaking can theoretically use 100% scrap, but the general consumption is 20-60%. Electric arc furnace steelmaking almost uses scrap as raw material. Scrap iron is generally used as raw material for blast furnace ironmaking or cast iron, and a small amount of clean scrap iron is also used as raw material for steelmaking. Pig iron is the main raw material for steelmaking in large iron and steel conglomerates, and scrap steel is the supplement. Independent steel mills, special steel mills and small steel mills developed in recent years all use scrap steel as the main raw material. |
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