转炉废钢收得率测定及影响因素分析
首发时间:2019-07-08
摘要:随着废钢资源的丰富和人们对环保要求的提高,各钢铁企业开始降低铁耗和提高转炉废钢比,而废钢收得率对转炉冶炼配料制度和废钢采购价格都具有重要影响。转炉废钢收得率的主要影响因素主要有:废钢质量、种类、尺寸、氧化程度,熔化程度、转炉冶炼操作制度等。为减少各因素对试验的影响,本文通过设立对比试验的方法测算H钢厂常用的几种废钢的收得率,结果表明H钢厂各种废钢的收得率差异较大,各废钢的收得率均在85%以上,其中钢筋压块、汽车废件和拆船板压块的收得率在85%和90%之间,自产废钢、冲压件和钢板料等的收得率在90%以上。转炉废钢收得率的测算为H钢厂和其它钢铁企业的转炉配料和废钢采购价格可提供参照。
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Determination of Converter Scrap Yield and Analysis of Influencing Factors
Abstract:With the abundance of scrap resources and environmental protection requirements, The reduction of iron consumption and the increase of the ratio of converter scrap in various steel companies. The scrap yield has an important impact on the converter smelting and batching system and scrap purchase price. The main influencing factors of converter scrap yield are: scrap quality, type, size, oxidation degree, melting degree, and converter smelting operation system, etc. In order to reduce the impact of various factors mentioned above on the test, in this study, the yield of several scraps commonly used in H steel company were calculated by establishing a comparative test method. The results showed that the yields of various scraps in H steel company vary greatly,. The yields are all above 85%, among which the yield of steel bars, automobile scraps and shipbreaking plates is between 85% and 90%, and the yield of self-produced scrap, stampings and steel sheets is above 90%. The calculation of the converter scrap yield is a reference for the converter ingredients and scrap purchase prices of H steel mills and other steel companies.
Keywords: Scrap yield scrap quality scrap melting comparison experiment
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