一、精料的技术经济综合评价原料是高炉生产的物质基础。整个高炉的冶炼史表明,炼铁生产的发展提高是和精料的发展提高分不开的:选矿技术的进步,对提高品位与去除有害杂质有了新的手段;大型现代化原料场的建设,使原料的均匀化管理和合理的搭配加工出现了新的前景;烧 First, the comprehensive evaluation of technical and economic raw materials is the material basis of blast furnace production. The entire blast furnace smelting history shows that the development of iron production is to improve and concentrate the development of inseparable: the progress of beneficiation technology, to improve the grade and remove harmful impurities have a new means; large-scale modernization of the construction of raw materials market, So that the uniform management of raw materials and reasonable with the emergence of a new prospect of processing;