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本文介绍了卡腰冲天炉的冷态模拟试验,焦炭燃烧试验,模拟熔炼试验和生产条件下的工艺试验。探讨冲天炉炉型结构参数,熔炼工艺参数对炉内温度分布,炉内气体浓度分布和炉内压力分布的影响。用统计分析法研究炉型结构与熔炼结果(铁水温度、Si、Mn元素烧损和炉渣氧化铁等)的关系。我们认为,在熔炼操作工艺相同的情况下,卡腰冲天炉比直筒型冲天炉平均铁水温度高20～30℃。风口排距的变化也会使铁水温度变化20～30℃,但如单纯从炉型结构方面入手来提高铁水温度的话,最大潜力只有30～40℃。冲天炉的铁水温度与炉内过热面积、过热面积的热价值及炉气水当量有关。硅、锰和铁的氧化烧损受到炉内最高温度和熔化带炉气成份的影响。
This paper introduces the cardinal waist cupola cold simulation test, coke combustion test, simulated melting test and process conditions under the production test. Discuss the influence of cupola furnace structure parameters and smelting process parameters on furnace temperature distribution, furnace gas concentration distribution and furnace pressure distribution. The relationship between furnace structure and melting results (hot metal temperature, Si, Mn loss and slag iron oxide) was studied by statistical analysis. We believe that in the case of the same melting operation, card waist cupola than straight cupola average hot metal temperature 20 ~ 30 ℃. The change of the air outlet distance will also change the temperature of molten iron 20 ~ 30 ℃, but if the furnace temperature is simply increased from the furnace structure, the maximum potential is only 30-40 ℃. Cupola hot metal temperature and furnace overheating area, overheated area of the value of heat and water gas equivalent. Oxidative burning of silicon, manganese and iron is affected by the maximum temperature in the furnace and the composition of furnace gas in the melting zone.