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80 t复吹转炉溅渣行为的物理模拟研究

发表时间:2017-01-23  浏览量:1575  下载量:478
全部作者: 曹玲玲,汪宙,刘青,李南
作者单位: 北京科技大学钢铁冶金新技术国家重点实验室
摘 要: 以相似理论为基础,采用水力学模拟实验研究溅渣枪位、溅渣流量、溅渣密度、底吹元件布置方式、底吹流量等工艺参数对80 t复吹转炉溅渣总量及溅渣均匀性的影响。研究结果表明,溅渣枪位对不同高度的溅渣效果均有重要影响,溅渣流量仅对渣线部位及耳轴下半区的溅渣效果有明显影响,溅渣密度影响炉帽下半区以下部位的溅渣效果;溅渣效果最佳的工艺控制方案为:溅渣枪位960 mm、溅渣流量18 000 Nm3/h、四孔喷头、底吹布置方式D4(底吹元件布置在与轴线夹角分别为30°、60°的0.6D、0.7D的圆周上)、底吹流量100 Nm3/h.
关 键 词: 钢铁冶金;转炉;物理模拟;溅渣
Title: Physical modeling research on slag splashing behavior of an 80 t combined converter
Author: CAO Lingling, WANG Zhou, LIU Qing, LI Nan
Organization: State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing
Abstract: Based on the similarity theory, the slag splashing behavior in an 80 t combined converter was studied by water modeling experiment. The experiment was conducted to investigate the influence of oxygen lance height, oxygen flow rate, density of splashed slag, the holes of oxygen lance, bottom nozzles configuration and bottom gas flow rate on the slag splashing behavior. The results showed that the lance height has a significance influence on the slag splashing behavior at different heights inside the converter, while the splashing flow rate is more conducive to the splashing effect of both the slag line and lower part of the trunnion and the density of the slag influences the parts blowing the furnace cap. Furthermore, through variance analysis, the optimal operating parameters of combined blown converter are obtained as follows: lance height is 960 mm; Gas flow rate of slag splashing is 18 000 Nm3/h: four-nozzle oxygen lance; bottom nozzles configuration is D4 (the bottom blowing elements are arranged on 0.6D and 0.7D with the axis angle of 30° and 60° respectively); and bottom blowing flow rate is 100 Nm3/h.
Key words: ferrous metallurgy; converter; physical modeling; slag splashing
发表期数: 2017年1月第2期
引用格式: 曹玲玲,汪宙,刘青,等. 80 t复吹转炉溅渣行为的物理模拟研究[J]. 中国科技论文在线精品论文,2017,10(2):215-223.
 
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