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| Effect of High Oxygen Enrichment PCI on BF Iron-Making |
| YAN Cai-ju1,CHENG Xiang-li2,GAO Jian-jun2,ZHOU Yu-sheng2 |
（1. Sinosteel Engineering Design and Research Institute Co., Ltd., Beijing 100080, China
2. State Key Laboratory of Advanced Steel Processes and Products, Central Iron and Steel Research Institute, Beijing 100081, China） |
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Abstract By analyzing the role of coke and the variety of process parameters when high oxygen enrichment PCI was adopted, under the proper condition of oxygen enrichment, PCI, blast temperature, charging system, the matching relationship between charging system and blast system, the following results can be achieved, such as improving the combustion rate of pulverized coal, maintaining high tuyere temperature, reducing bosh gas and enhancing productivity. When coke rate and coal rate is half to half in high oxygen enrichment PCI, quantity of coke can meet direct reduction and carburization requirement. Low reactivity and high abrasion resistance coke is necessary in order to play a skeletal role.
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Received: 13 August 2012
Published: 18 June 2013
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2013, Vol. 48 
