It is shown the key point of reaching the limit of coal injection is improvement of permeability of stockcolumn 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。
2
According to the theory on stockcolumn skeleton of BF and the economic analysis of injection, a new concept on limit of injected coal and critical replacement ratio is proposed.
根据料柱骨架理论和喷煤技术经济分析，提出了高炉喷煤极限和临界置换比的新概念；
3
In the design surface, enter Stock symbol for the text in the first table cell (the first row and first column).