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| Industrial Practice of Pulverized Coal Injection With Combustion Supporting Agent for New No.5 BF in Ansteel |
| ZHANG Li-guo，WANG Zai-yi，ZHANG Hong-yu，ZHANG Wei |
| Technology Centre, Angang Steel Co．， Ltd.， Anshan 114009， Liaoning， China |
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Abstract The industrial practice of pulverized coal injection with combustion-supporting agent in the No.5 blast furnace of Ansteel was carried out, and the goal was to get the effect of Mn series combustion-supporting agent on pulverized coal injection. The dailly production of hot metal with 0.4%-0.6% combustion agent grew up 435.6t compared with the index without combustion agent, coke rate decreased 10.3kg/t hot metal, the coal injection improved 8.1kg/t hot metal, the CO2 proportion in gas decreased 0.69%, and the average combustion efficiency reached 4593% which was 6.06% higher than traditional operation.
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Received: 19 April 2011
Published: 20 February 2012
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2012, Vol. 47 
