炼铁原料状况的变化与原料准备技术［日］下村泰人关键词原料，原料准备，技术１炼铁原料及其需要量日本钢铁业需要购进大量原料，从海上运回，然后在钢铁厂经过原料准备处理后再使用。自开始有炼铁生产以来，随着炉料结构和原料产地的变化以及原料数量的增加，运输和原料... Raw materials, raw materials preparation, technology 1 Ironmaking raw materials and their needs Japanese steel industry needs to purchase a lot of raw materials, shipped back from the sea, and then in the steel plant After the preparation of raw materials before use. Since the beginning of ironmaking production, with the structure of the charge and the origin of raw materials as well as the increase in the amount of raw materials, transportation and raw materials ...