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前言众所周知,钢铁工业在进入21世纪后仍保持快速发展态势,如何为钢铁工业的高速发展备足“粮”已成为重要课题。铁矿石作为钢铁生产的主要原料,一直引人关注。由于我国钢产量已居世界第一,但铁矿石储备按金属铁计算却居世界第九位,且都属于贫矿和难选的矿石。国内矿石不能满足钢铁生产所需,不得不依赖进口,中国去年的矿石进口量已占世界总贸易量的1/4左右。因此,开发国内外废钢资源,补充矿石量的不足已势在必行。
Preface As we all know, the iron and steel industry still maintains a rapid development trend after entering the 21st century. How to prepare a good food for the rapid development of the steel industry has become an important issue. As the main raw material for iron and steel production, iron ore has drawn people’s attention. Since China’s steel output ranks first in the world, iron ore reserves rank the ninth in the world according to metal iron, and both belong to the poor ore and refractory ore. Domestic ore can not meet the needs of steel production, had to rely on imports, China’s ore imports last year accounted for about 1/4 of the world’s total trade volume. Therefore, it is imperative to develop scrap resources at home and abroad to supplement the shortage of ore.