The conventional blast compaction process needs to separate the blower flow of the blast furnace,it is prone to cause blast fluctuations,unstable furnace conditions,and so on,the independent average external pressure automatic stove process is applied to two sets of 1800 m3 hot blast stoves of blast furnace,and the process can perform quick automatic compaction in ways of"small differential pressure,big flow"and"subsection,constant differential pressure".Since it was put into operation,the daily accumulated firing time increase about 5.6 h;when the blowing temperature is 1 200～1 210 ℃,the daily coal total consumption not changed significantly;the daily average tapping amount of two sets of blast furnace increased by 119 t,the average comprehensive coke ratio decreased by 3.95 kg/t·Fe,the average gas consumption decreased by 10 m3/t·Fe.
维普
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