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瑞典奥克塞洛松钢铁公司4号高炉在扩容(970m~3扩至1275m~3)改建前采用的是“Tesch-McKee”料钟炉顶,装有活动炉喉板。这种炉顶由旋转布料器及一套料钟组成,可采取3种倾料方式:(1)向炉壁倾料,(2)向炉壁至炉中心的一半位置上倾料,(3)向炉中心倾料。虽然能够向炉中心装焦,但因焦炭过度分散,不能形成理想的狭窄中心气流。此外,在用旧炉顶操作时,明显受到原料运输系统、料车尺寸及料钟炉顶等的制约。在为争取最大利用系数而不得不将焦炭同铁
The No.4 Blast Furnace of Sweden’s Axeloross Iron & Steel Company adopted the “Tesch-McKee” material bell top before retrofitting capacity expansion (970m ~ 3 to 1275m ~ 3). This top consists of a rotating distributor and a set of chimes. Three types of churning can be adopted: (1) pouring material into the furnace wall, (2) pouring material towards the furnace center to half of the furnace center, and Go to the center of the furnace. Although it is possible to load the center of the furnace, it is not possible to form the ideal narrow center airflow due to the excessive dispersion of coke. In addition, the use of the old roof operation, obviously subject to the raw material handling system, material car size and material bell roof constraints. In order to get the maximum utilization factor and had to coke with iron