It is shown the key point of reaching the limit of coal injection is improvement of permeability of stock column and enhanced BF operation.
指出大量喷煤，达到喷煤量极限的关键在于改善料柱透气性，提高高炉冶炼水平。关。
Alkali metals are one of the important causes that leads to poor permeability of charge column, irregular furnace operation, frequent hanging and scaffolding in the stack.
碱金属是导致高炉料柱透气性恶化、炉况失常、频繁悬料和在炉身结瘤的一个重要原因。
Alkali metals are one of the important causes that leads to poor permeability of charge column, irregular furnace operation, frequent hanging and scaffolding in the stack.
碱金属是导致高炉料柱透气性恶化、炉况失常、频繁悬料和在炉身结瘤的一个重要原因。
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