烧结用生石灰质量不稳定原因分析及改进  

Analysis on Causes Leading to Unsteady Quality of Quicklime for Sintering and Improvement of Quality

作　　者：王小强[1] 颜庆双[1] 滕雪亮 李向通 马贤国[1] 刘杰 李金莲 WANG Xiaoqiang;YAN Qingshuang;TENG Xueliang;LI Xiangtong;MA Xianguo;LIU Jie;LI Jinlian(Bayuquan Branch of Angang Steel Co.,Ltd.,Yingkou 115007,Liaoning,China;Ansteel Iron&Steel Research Institutes,Anshan 114009,Liaoning,China)

机构地区：[1]鞍钢股份有限公司鲅鱼圈钢铁分公司,辽宁营口115007 [2]鞍钢集团钢铁研究院,辽宁鞍山114009

出　　处：《鞍钢技术》2022年第5期54-58,共5页Angang Technology

摘　　要：分析了生石灰质量不稳定的原因,并提出采取增加石灰石取样化验频次、调整石灰石粒度组成、优化回转窑焙烧参数、改变生石灰储存及运输方式和调整生石灰取样位置等措施。实施后,达到了提升和稳定生石灰质量的目标,有效改善了烧结混合料制粒,混合料温度提高,烧结电耗降低,烧结矿转鼓强度提升,烧结矿粒度组成更趋于均匀,烧结矿成本降低了1.819元/t。The causes leading to unstable quality of quicklime was analyzed. And then these measures such as increasing frequencies for sampling tests on the quality, adjusting the particle size composition of limestone, optimizing the roasting parameters for a rotary kiln, changing the quicklime storing & transporting mode and adjusting the sampling position of quicklime were proposed. After these measures were taken, the goal of improving and stabilizing the quality of quicklime was achieved, while the pellet fabrication of the sinter mixture was effectively improved with the rising of the mixture temperature and the declining of power consumption for sintering and thus the drum strength of sinter was improved and its particle size composition tended to be much more uniform. So the sinter cost was reduced by 1.819 yuan per ton.

关 键 词：烧结熔剂 生石灰 活性度 混合料温度 经济效益 

分 类 号：TF046[冶金工程—冶金物理化学]