Journal of Northeastern University Natural Science ›› 2017, Vol. 38 ›› Issue (11): 1564-1568.DOI: 10.12068/j.issn.1005-3026.2017.11.010

• Materials & Metallurgy • Previous Articles     Next Articles

Effect of Coke Under Alkali Metal Load on the Droplet Performance of Furnace Charge

CHEN Shu-jun1,2, LIU Kai3, LYU Qing3, WANG Fu-jia3   

  1. 1. School of Materials, Northeastern University, Shenyang 110819, China; 2. HBIS Group Co., Ltd., Chengde Branch, Chengde 067000, China; 3.Key Laboratory for Advanced Metallurgy Technology, Ministry of Education, North China University of Science and Technlogy, Tangshan 063009, China.
  • Received:2016-05-30 Revised:2016-05-30 Online:2017-11-15 Published:2017-11-13
  • Contact: LIU Kai
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Abstract: By simulating droplet formation and property in blast furnace, the effect of coke under different alkali metal loads on the droplet performance of furnace charge was investigated. The relations between alkali metal load and the maximum pressure difference (Δpmax) and the droplet eigenvalue (S) value were analyzed, respectively. The results indicate that the coke under alkali metal load affects the charge melt drops performance through catalyzing melting reaction of coke. The morphology of cokes after reaction shows that with the increase of alkali metal load, the number of stomatal on the coke surface increases and the size becomes larger, the erosion of coke surface becomes more severe, the strength of the coke decreases even down to zero, eventually the droplet performance of furnace charge can be affected, which make Δpmax and S deteriorate greatly.

Key words: alkali metals, droplet performance;melting reaction of coke, catalysis

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