Application and analysis of slag holdup model in BF deadman,Canadian Metallurgical Quarterly

当前位置： X-MOL 学术 › Can. Metall. Q. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Application and analysis of slag holdup model in BF deadman
Canadian Metallurgical Quarterly ( IF 0.9 ) Pub Date : 2019-04-24 , DOI: 10.1080/00084433.2018.1560660
Hong-xiu Ma ₁ , Ke-xin Jiao ₁ , Jian-liang Zhang ₁ , Rong-Rong Wang ₁ , Peng-chao Zheng ₂ , Zhuang-zhuang Liu ₃

Affiliation

ABSTRACT The operation of blast furnace is considerably influenced by slag performance, particularly in BF hearth. Slag holdup in deadman has negative effects on hearth, such as sharp peripheral flow of hot metal and carbon brick erosion. Therefore, it is urgent to monitor the slag holdup. In this paper, a slag holdup model was proposed to give a transient snapshot of the internal state of BF. Based on the analysis of practical example of Jingtang (Hebei, China) No. 1 blast furnace, three typical models and the slag holdup model were compared. Furthermore, the effects of slag basicity(CaO/SiO2), MgO/Al2O3 ratio, temperature of hot metal, diameter of coke, shape factor of coke and voidage of deadman on slag holdup were investigated. The results show that current slag holdup model can timely predict the general trend of the permeability of the deadman and internal state of hearth. In addition, the influence extent of the six factors which affect the slag holdup is in the following order (from large to small effect): the voidage of deadman, shape factor of coke, diameter of coke, basicity(CaO/SiO2), MgO/Al2O3 ratio, temperature of hot metal. The weighting ratio of these factors is 1:0.92:0.69:0.69:0.38:0.23.

更新日期：2019-04-24

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南

全部期刊列表>>