Skip to main content
SpringerLink
Log in

Study on the Influence Factor of Coke Pulverization Rate and Its Effect on Operating Index of Large Blast Furnace

  • COKE
  • Published:
Coke and Chemistry Aims and scope Submit manuscript

Abstract

The carbon dissolving reaction is the main factor for the deterioration of coke in the blast furnace. Therefore, in order to investigate the effect of coke deterioration on the permeability of blast furnace, the Coke Pulverization Rate (CPR) which represented the degree of Matrix carbon loss after carbon dissolution was put forward in this paper. The results showed that the CPR increases with the increase of volatile of coal blending, ash content of coke, M10 and coke reactivity index (CRI), while decreases with the rising of M40 and coke strength after reactivity (CSR). Analysis of the production data of 5BF blast furnace of Meishan Steel showed that under the conditions of coke ash (Ad) < 12.2%, M10 < 6.5%, M40 > 87%, CRI < 26% and CSR > 66%, the CPR would be less than 23%, which is conductive to ensure stable permeability large blast furnace.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1.
Fig. 2.
Fig. 3.
Fig. 4.
Fig. 5.
Fig. 6.
Fig. 7.
Fig. 8.
Fig. 9.
Fig. 10.

Similar content being viewed by others

REFERENCES

  1. Nogami, H., Yamamoto, T., and Miyagawa, K., Effect of coke reactivity on blast furnace operation and coke reaction behavior, Tetsu-to-Hagane, 2010, vol. 96, no. 5, pp. 319–327.

    Article  CAS  Google Scholar 

  2. Yamaoka, H. and Nakano, K., Mechanism of the degradation of coke size in raceway, Tetsu- to-Hagane, 2009, vol. 86, no. 11, pp. 733–740.

    Article  Google Scholar 

  3. Lv, Q.Q., Du, P., and Zhou, J.L., Coke deterioration mechanism in lump zone of blast furnace, Iron Steel, 2016, vol. 51, no. 1, pp. 13–18.

    Google Scholar 

  4. Velden, B.V., Atkinson, C.J., and Bakker, T., Coke properties and its processes in the lower zone of the blast furnace, Proc. InSteelCon 2011, Düsseldorf: Steel Inst., 2011, pp. 1–5.

  5. Zheng, M.D., Xu, J.J., and Shan, H.Y., Modeling research of mineral catalysis index for coke reactivity upon the degree of catalysis, Iron Steel, 2009, vol. 44, no. 10, pp. 21–24.

    Google Scholar 

  6. Ueda, S., Watanabe, K., Inoue, R., et al., Catalytic effect of Fe, CaO and molten oxide on the gasification reaction of coke and biomass char, ISIJ Int., 2011, vol. 51, no. 8, pp. 1262–1268.

    Article  CAS  Google Scholar 

  7. Drain, P.B., Monaghan, B.J., Chapman, M.W., et al., Reactivity of coke ash on alumina-carbon blast furnace hearth refractories, ISIJ Int., 2015, vol. 55, no. 9, pp. 1849–1858

    Article  CAS  Google Scholar 

  8. Yamamoto, Y., Kashiwaya, Y., Miura, S., et al., Reaction behavior of coke with iron oxide catalyst, Tetsu-to-Hagane, 2010, vol. 96, no. 5, pp. 288–296.

    Article  CAS  Google Scholar 

  9. Hu, D.S. and Sun, W.Z., Discussion on China standard of “Coke-determination of reactivity and strength after reaction,” Baosteel Technol., 2015, vol. 33, no. 1, pp. 9–12.

    Google Scholar 

  10. Hu, D.S. and Sun, W.Z., Reappraisal of the reactivity of blast furnace coke with CO2, Baosteel Technol., 2013, vol. 31, no. 6, pp. 6–10.

    Google Scholar 

  11. Zhang, X.Y., Wu, G.Y., and Zheng, M.D., Study on behavior of carbon solution loss reaction for stamping coke, Coal Convers., 2015, vol. 38, no. 1, pp. 55–59.

    Google Scholar 

  12. Hiraki, K., Yamazaki, Y., Kanai, T., et al., Numerical analysis of 3-D microstructure of coke using micro X-ray CT, ISIJ Int., 2012, vol. 52, no. 11, pp. 1966–1972.

    Article  CAS  Google Scholar 

  13. Sun, Y.K. and Sasaki, Y., Simulation of effect of pore structure on coke strength using 3-dimensional discrete element method, ISIJ Int., 2010, vol. 50, no. 6, pp. 813–821.

    Article  Google Scholar 

  14. Kim, S.Y. and Sasaki, Y., Numerical study using discrete element method about coke particle behavior in cohesive zone, ISIJ Int., 2013, vol. 53, no. 12, pp. 2028–2037.

    Article  CAS  Google Scholar 

  15. Li, Y.L., Cheng, S.S., Zhang, P., et al., Sensitive influence of floating state of blast furnace deadman on molten iron flow and hearth erosion, ISIJ Int., 2015, vol. 55, no. 11, pp. 2332–2341.

    Article  CAS  Google Scholar 

  16. Tuo, B.Y., Wang, J.L., Yao, Y.L., and Han, L., Influence of coke reactivity improved on high temperature properties of iron-bearing burden, ISIJ Int., 2015, vol. 55, no. 9, pp. 1859–1865.

    Article  CAS  Google Scholar 

  17. Hirosawa, T., Murao, A., Oyama, N., Watakabe, S., and Sato, M., Advanced blast furnace reaction simulator combining a calculation model and experimental furnace, ISIJ Int., 2015, vol. 55, no. 6, pp. 1321–1326.

    Article  CAS  Google Scholar 

Download references

ACKNOWLEDGMENTS

Financial support for this work was provided through a contract with the National Natural Science Fund (no. U1361128, 51404003) and the University Natural Science Research Project in Anhui Province (KJ2016A809).

Author information

Authors and Affiliations

  1. Department of Chemistry and Chemical Engineering, Anhui University of Technology, 243002, Maanshan, China

    Wencheng Zhang, Xiaoyong Zhang & Mingdong Zheng

  2. Meishan Steel Technology Center, Research Institute, Baoshan Iron & Steel Co. Ltd., 210039, Nanjing, China

    Wencheng Zhang

Authors
  1. Wencheng Zhang
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Xiaoyong Zhang
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Mingdong Zheng
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding authors

Correspondence to Wencheng Zhang, Xiaoyong Zhang or Mingdong Zheng.

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Wencheng Zhang, Zhang, X. & Zheng, M. Study on the Influence Factor of Coke Pulverization Rate and Its Effect on Operating Index of Large Blast Furnace. Coke Chem. 62, 523–528 (2019). https://doi.org/10.3103/S1068364X19110097

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.3103/S1068364X19110097

Keywords:

Search

Navigation