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首页> 外文会议>58th Electric Furnace Conference and 17th Process Technology Conference, Nov 12-15, 2000, Orlando, Florida >High productivity Meltshop for the production of high quality steel grades
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High productivity Meltshop for the production of high quality steel grades

机译：高生产率Meltshop可生产高品质钢种

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In the past thirty years, the concept of the minimill for the production of flat and long products has changed at a very fast pace. Increase in furnace productivity and lower production costs through new melting, casting and rolling technologies have made the economics more attractive for steelmakers. Today it is common to have minimills with capacities before only heard of with the BF-BOF route, capacities from 1.5 to 2 million tons per year are common utilizing no more than two EAF as melting units. Every day EAF based steelmakers are producing steel grades economically competitive before reserved for the BF-BOF route. In order to produce high quality steel grades, EAF based steelmakers are using high quality metallic charge coming from iron ore like DRI, HBI or pig iron. For the production of high quality steel grades, virgin iron units are the main metallic charge and can only be complemented with scrap in limited quantities due to quality restrictions. In the past, availability of DRI/HBI has been limited because most of their production was for self-consumption. As new minimills for flat products are becoming operative, production of merchant DRI/HBI has been increased in order to satisfy the need for high quality metallic charge.
机译：在过去的三十年中，用于生产扁平和长型产品的小型轧机的概念已经以非常快的速度发生了变化。通过新的熔炼，铸造和轧制技术提高熔炉生产率并降低生产成本，对钢铁制造商而言，其经济性更具吸引力。如今，在不听说BF-BOF路线的情况下，拥有微型轧机的能力已很普遍，通常使用不超过两个EAF作为熔炼单元，每年的产能为1.5至200万吨。每天，以电弧炉为基础的钢铁生产商在生产供BF-BOF路线使用的钢种之前，都具有经济竞争力。为了生产高质量的钢种，基于电弧炉的钢铁生产商正在使用来自铁矿石（如DRI，HBI或生铁）的高质量金属装料。为了生产高质量的钢种，原始铁是主要的金属装料，由于质量限制，只能补充数量有限的废钢。过去，DRI / HBI的可用性受到限制，因为它们的大部分生产都是自用的。随着用于扁平产品的新型微型轧机的投入生产，为了满足对高质量金属装料的需求，商人DRI / HBI的生产已经增加。

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