摘要
通过对10t/h冲天炉的改造,将3排小风口冲天炉改为两排大间距结构,用正交设计法试验确定10t冲天炉最佳结构及工艺参数.实验结果表明,10t/h冲天炉采用两排大间距炉型,倒置风口(67/33)、小风口比(2.0)、焦铁比1∶10、风量110m3/min的工况下可获得最佳熔化效果。改造后的10t冲天炉比原3排小风口冲天炉的铁水温度提高30～50℃,显著减少了炉前出铁口冻结事故,降低铸件废品率1.92%。
The orthogonal method is adopted to decide the best structure and process parameters at the condition that two rows large space structures of 10 t/h blast-furnace was reformed. The experiment results show that the best melting effect could be obtained when two rows large space structures, inversed wind holes (67/33), the proportion of the small wind holes (2.0) , the proportion of coke and iron of 1∶10, wind capacity of 110 m3/min were adopted to the 10 t/h's blast-furnace. After this reforming the temperature of melting iron could be raised 30～50℃, the accident of melting iron solidified at the front stove was notably declined and the rate of waste casting work-piece was reduced by 1.92% than the original one with three rows of small wind holes.
出处
《工业加热》
CAS
2004年第2期45-47,共3页
Industrial Heating
关键词
冲天炉
风口比
铁水温度
焦铁比
blast-furnace
ratio of wind holes
temperature of melting iron
ratio of coke and iron
