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Reducing the Sintering Flue Gas Pollutants Emissions Based on the Accumulation Heat Effect in Iron Ore Sintering Process

  • J. M. QieEmail author
  • C. X. Zhang
  • Y. H. Guo
  • H. F. Wang
  • S. L. Wu
Technical Paper
  • 14 Downloads

Abstract

The pressure to reduce the emissions of the flue gas pollutants from iron ore sintering is enlarging increasingly. Based on the accumulation heat effect of sinter bed, the reasonable distribution of fuel in sinter bed was identified through the calculation of material balance and heat balance of raw materials. The sinter bed with a height of 300 mm was divided into three units, and the average available accumulation heat rate was about 38%. The reasonable coke powder addition ratio of each unit was 6.6%, 5.7%, and 5.2%, respectively, from the top to the bottom of sinter pot. The sinter-pot test results showed that the fuel consumption and the emissions of SO2, NOx, CO, and CO2 was reduced by 7.5 kg/t, 57.7%, 18.4%, 72.5%, and 31.7%, respectively, when compared with the conventional method in which the coke powder addition ratio of raw materials was 6.6%. Meanwhile, the sinter quality was improved.

Keywords

Iron ore sintering Accumulation heat SO2 NOx CO CO2 

Notes

Acknowledgements

This work was supported by the National Key Research and Development Program of China under Grant No. 2017YFB0304001; National Key Research and Development Program of China under Grant No. 2017YFB0304301; National Natural Science Foundation of China under Grant No. 51234003.

References

  1. 1.
    Hu C Q, and Zhang C X, J Chin Rare Earth Soc 22 (2004) 588 (in Chinese).Google Scholar
  2. 2.
    Xu B, Ph D Thesis (2011) (in Chinese).Google Scholar
  3. 3.
    Pan J, Zhu D Q, Xue Z X, Chun T J, and Ruan Z Y, Environ Chem 32 (2013) 1660 (in Chinese).Google Scholar
  4. 4.
    Jin Y L, Sinter Pellet 29 (2004) 6 (in Chinese).Google Scholar
  5. 5.
    Zhao C L, Wu T, Bo X, and Su Y, Environ Eng 32 (2014) 76 (in Chinese).Google Scholar
  6. 6.
    Zhao R Z, and Liang B R, The Desulphurization and Denitrification Technological Status of Sintering Flue Gases, in Proc of 2013 national sintering flue gas pollutants integrated treatment technology forum, The Chinese Society for Metals, Datong (2013) (in Chinese).Google Scholar
  7. 7.
    Liu H Q, Fu J X, Liu S Y, Xie X Y, and Yang X Y, Iron Steel 51 (2016) 74 (in Chinese).Google Scholar
  8. 8.
    Jiang T, Sintering and Pelletizing Productive and Technical Manual, Metallurgical Industry Press, Beijing (2014), p 92 (in Chinese).Google Scholar
  9. 9.
    Zhang J H, Xu N P, and Xie A G, Energy Metall Ind 21 (2002) 25 (in Chinese).Google Scholar
  10. 10.
    Song G L, Fu Z H, and Zhang Q, J Iron Steel Res 12 (2000) 61 (in Chinese).Google Scholar
  11. 11.
    Kpchko A K, Cmaib 1 (1979) 245 (in Russian).Google Scholar
  12. 12.
    Huang Z C, Jiang Y, Mao X M, Xu B, Guo Y F, and Jiang T, J Cenral South Univ (Sci Technol) 37 (2006) 884 (in Chinese).Google Scholar
  13. 13.
    Bai C G, Xie X, Qiu G B, Lv X W, Xu G, and Pu X D, J Chongqing Univ 31 (2008) 1002 (in Chinese).Google Scholar
  14. 14.
    Masaaki N, Kanji T, and Yoshiyuki M, ISIJ Int 55 (2015) 7.CrossRefGoogle Scholar
  15. 15.
    Li F S, Zhang X J, Zhang J Y, and Tian W Y, J Central South Univ (Sci Technol) 46 (2015) 386 (in Chinese).Google Scholar
  16. 16.
    Zhang B, Zhou J M, and Li M, J CIESC 68 (2017) 1811 (in Chinese).Google Scholar
  17. 17.
    Huang X X, Fan X H, Chen X L, Zhao X Z, and Gan M, Ironmak Steelmak 2 (2018) 1.Google Scholar
  18. 18.
    Fu J Y, Jiang T, and Zhu D Q, Sintering and Pelletizing, Central South University of Technology Press, Changsha (1996), p 105 (in Chinese).Google Scholar
  19. 19.
    Miyer K, The Research of Iron Ore Spheric Agglomeration, Metallurgical Technology Press, Beijing (1980), p 112 (in Chinese).Google Scholar
  20. 20.
    Kasai E, Wu S, Sugiyama T, Inaba S, and Omori Y, Testo-to-Hagané 78 (1992) 51 (in Japanese).Google Scholar
  21. 21.
    Wu S, Sugiyama T, Morioka K, Kasai E, and Omori Y, Testo-to-Hagané 80 (1994) 276 (in Japanese).CrossRefGoogle Scholar
  22. 22.
    Kasai E, and Saito F, Kagaku Kogaku Ronbunshu 20 (1994) 857 (in Japanese).CrossRefGoogle Scholar
  23. 23.
    Umadevi T, Karthik P, Mahapatra P C, Prabhu M, and Ranjan M, Ironmak Steelmak 39 (2013) 180.CrossRefGoogle Scholar
  24. 24.
    Mochόn J, Cores A, Ruizbustinza Í, Verdeja L F, Robla J I, and Garciacarcedo F, Dyna 81 (2014) 168.CrossRefGoogle Scholar
  25. 25.
    Xu H F, Sinter Production, Chemical Industry Press, Beijng (2013), p 242 (in Chinese).Google Scholar

Copyright information

© The Indian Institute of Metals - IIM 2019

Authors and Affiliations

  1. 1.State Key Laboratory of Advanced Steel Process and ProductsCentral Iron and Steel Research InstituteBeijingPeople’s Republic of China
  2. 2.School of Metallurgical and Ecological EngineeringUniversity of Science and Technology BeijingBeijingPeople’s Republic of China

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