Abstract：he working status of hearth has important effects upon the operation of blast furnace. Two main control factors of activity of the hearth are inner packed structure of coke and fluidity of slag and hot metal. The structure of packed coke determines the number and distribution of the channels for permeating liquid in high temperature zone, and fluidity of slag and hot metal is mainly influenced by their own physicochemical properties and temperature. The flowing resistance of hot metal and slag to large extent affects the hot metal and slag flowrate flowing in and from the hearth. The flowing resistance coefficient of slag and hot metal decreases, with the increase of oxygen enrichment rate.On basis of flowing resistance coefficient and production data, the activity index of hearth is presented which can better evaluate and judge the hearth working states.
陈辉;吴胜利;余晓波. 高炉炉缸活跃性评价的新认识[J]. 钢铁, 2007, 42(10): 0-0.
CHEN Hui;WU Shengli;YU Xiaobo. New Index of Evaluating Activity of Blast Furnace Hearth. Iron and Steel, 2007, 42(10): 0-0.
2007, Vol. 42 