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Nowadays,there are two major trends,which are the increasing blast furnace(BF) working volume and the decreasing fuel resource as well as the decline in its quality,in the ironmaking filed.The two trends lead to the difficulty in the BF operation.The decline of the BF stability requires higher and more elaborate operational techniques.A reasonable and compatible BF comprehensive operating system,as the base of the BF stabilization,is desired to satisfy the demand of large-scaled BF developments.Based on the practical operation of Baosteel No.3 BF in 2010,the present work analyzes and discusses the basic rules of large-scaled BF stable control techniques,and further optimizes and improves its gas flow control techniques,develops strategies against the decline in fuel quality,which will contribute to the promotion of large-scaled BF operational techniques progress.
Nowadays, there are two major trends, which are the increasing blast furnace (BF) working volume and the decreasing fuel resource as well as the decline in its quality, in the ironmaking filed. The two trends lead to the difficulty in the BF operation. The decline of the BF stability requires higher and more elaborate operational techniques. A reasonable and compatible BF comprehensive operating system, as the base of the BF stabilization, is desired to satisfy the demand of large-scaled BF developments. Based on the practical operation of Baosteel No. 3 BF in 2010, the present work analyzes and discusses the basic rules of large-scaled BF stable control techniques, and further optimizes and improves its gas flow control techniques, develops strategies against the decline in fuel quality, which will contribute to the promotion of large-scaled BF operational techniques progress.