This paper analyses the cause of high return fines ratio and its influences.
本文分析了槽下返矿率高的原因及其不利影响。
The techniques of sinter charging to BF by size grading, and BF return fines screening were the first time employed in our country by ANGANG.
烧结矿分级入炉和高炉返矿筛分，是鞍钢二烧在国内首次采用的两项新技术。
The return fines ratio has obviously been declined and remarkable economic profit was obtained after strengthening management and retrofitting the equipments and technology.
烧结厂通过加强各方面的管理和进行设备技术改造，使槽下返矿率明显下降，取得了明显的效果和经济效益。
The return fines ratio has obviously been declined and remarkable economic profit was obtained after strengthening management and retrofitting the equipments and technology.
烧结厂通过加强各方面的管理和进行设备技术改造，使槽下返矿率明显下降，取得了明显的效果和经济效益。
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