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本文以主风口地区焦炭得到加热这个理论为基础,分析了双层送风冲天炉的底焦燃烧情况,提出了其风口排距和风量分配参数的选定方法,并在生产性冲天炉上进行了验证。实践证明,采用本文所推荐的参数的双层送风冲天炉,其出铁温度比英国H.J.莱松等人的炉型高出40～60℃,比单排风口冲天炉高出100℃左右。如果保持相同温度,批焦消耗量可节约15～20％(指冶金焦)。同时,主张双层送风冲天炉应专指“倒置”的而言,“顺置”的应归入多排风口冲天炉;卡腰炉应归类于双层送风冲天炉;以后定型的双层送风冲天炉仍应保留曲线炉型、炉胆热风和具有一定风速的小风口。
Based on the theory that the coke is heated in the main tuyere area, this paper analyzes the bottom coke combustion situation of the double-deck air blow cupola and puts forward the selection method of the air-outlet distance and the air volume distribution parameters. The method is carried out in the production cupola Verified. Practice has proved that using the parameters recommended in this paper double-layer air cupola, the tapping temperature than the British HJ Lesong et al furnace 40 ~ 60 ℃ higher than the single-outlet cupola about 100 ℃ . If you maintain the same temperature, batch consumption can save 15 ~ 20% (referring to metallurgical coke). At the same time, the advocate double-deck air cupola should specifically refer to “upside down” in terms of “cis” should be classified as multi-outlet cupola; card waist furnace should be classified in the double air cupola; The double-deck air cupola should still retain the curve furnace, furnace hot air and a small outlet with a certain wind speed.