The No.2 blast furnace of Hansteel was scheduled to be repaired for 96 h,but due to market and environmental reasons,it was changed to a downfeed level shutdown.In this operation,the furnace condition was restored to normal in 34h and the furnace was safely shut down in 79h.The main operation experience is summarized,and the scientific reheating scheme and shutdown scheme are formulated.The furnace cylinder is quickly heated by the technology of iron nozzle oxygen gun,and the gas is quickly added to improve the gas permeability of the furnace cylinder during the recovery process.Through the control of reasonable operating parameters,the furnace condition can be restored quickly and efficiently,and the furnace can be stopped safely and smoothly at the falling level.
关键词
高炉/非计划休风/降料面停炉/氧枪
Key words
blast furnace/unplanned rest/stop the furnace at the falling surface/oxygen lance
维普
万方数据