Production Practice of Reducing the Return Fine Ratio of Sintered Ore under T rough of B Fin Qingdao Steel
YANG Xiaojian
SUN Zhicheng
WANG Dong
Abstract：At the beginning of 2013, the return fine ratio of sintered ore under trough of BF has reached to 210 kg/t at Qingdao steel, which has lead to the hot metal cost increase. To reduce the return fine ratio of sintered ore under trough of BF, a research team was formed. A series of improvement measures, such as improving ore matching structure, increasing sintered ore basicity, stable flux quality, rising ignition temperature, improving sintering process, enhancing screening system, were carried out. Due to the implement of these measures, the sintered ore strength has increased by 5%, and return fine ratio of sintered ore has dropped by 17%. The sintering cost can reduce 11.793 6 million yuan per year.
Keywords：sinteringlow basicity sinterlump oremetallurgical propertycost
Publication Date：2014-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：3( 48-50 )