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1.高炉中的碱循环高炉中的碱循环是众所周知的事实,因此不必多加阐述。表1、2中收集了一部分高炉取样的分析数据。从这些数据中可以看到以下的一些事实。1)高炉炉瘤中K_2O的积累倍数平均为95.1倍,Na_2O为19.1倍;2)高炉各部位渣皮中的碱,以炉身上部和炉底最低,而以炉腰和炉身下部为最高;3)高炉中不同部位的焦炭里,含碱量也有类似的变化,即炉身上部的焦炭含碱最低,以后逐步增加,到炉身下部时达到最大值,到达风口区以后,焦炭中含碱明显降低,而残存在炉底的焦炭的含碱量又与炉身
1. Alkaline circulation in the blast furnace The alkaline circulation in the blast furnace is a well-known fact and therefore need not be elaborated. Tables 1 and 2 collected some of the blast furnace sampling data. The following facts can be seen from these data. 1) The average accumulation of K_2O in blast furnace furnace is 95.1 times and 19.1 times that of Na_2O; 2) The alkali in the slag skin of blast furnace is the lowest in the upper part and the bottom of the furnace, while the lower part is in the lower part of the furnace and the shaft ; 3) different parts of the blast furnace coke, the alkali content has a similar change, that is, the upper part of the furnace coke alkali minimum, then gradually increase to the lower part of the furnace to reach the maximum, after reaching the tuyere area, the coke content Alkali significantly reduced, while the remaining in the bottom of the coke alkali content and the furnace body