Advertisement

Preparation of High-Carbon Metallic Briquette for Coke Saving in Blast Furnace

  • Huiqing TangEmail author
  • Shihong Liu
  • Kai Fan
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)

Abstract

Developments in blast furnace (BF) sector have long focused on coke saving in ironmaking. In this research, high-carbon metallic briquette was proposed as a novel BF feeding material for coke saving in BF. The preparing condition of the proposed high-carbon metallic briquette was optimized regarding its carbon content, cold strength and crushing strength after the reaction. Gasification behaviour of the optimally prepared briquette was examined using a custom-built thermalgravimetric analysis device. Results showed that the optimal preparation condition was mhematite/mcoal = 2.0. The activation energy of carbon gasification in the briquette was 166 kJ/mol; analysis of the effective application of the briquette indicated that a suitable addition level of high-carbon metallic briquette in the ore layer in BF could suppress the lump coke gasification.

Keywords

High-carbon metallic briquette Blast furnace Gasification Coke saving 

References

  1. 1.
    Guo ZC, Fu ZX (2010) Current situation of energy consumption and measures taken for energy saving in the iron and steel industry in China. Energy 35(11):4356–4360CrossRefGoogle Scholar
  2. 2.
    Li Y, Zhu L (2014) Cost of energy saving and CO2 emissions reduction in China’s iron and steel sector. Appl Energ 130:603–616CrossRefGoogle Scholar
  3. 3.
    Mathieson JG, Truelove JS, Rogers H (2005) Toward an understanding of coal combustion in blast furnace tuyere injection. Fuel 84:1229–1237CrossRefGoogle Scholar
  4. 4.
    Nomura S, Callcott TG (2011) Maximum rates of pulverized coal injection in ironmaking blast furnaces. ISIJ Int 51(7):1033–1043CrossRefGoogle Scholar
  5. 5.
    Zhao H, Bai H, Cheng Y (2013) Effect of coke reaction index on reduction and permeability of ore layer in blast furnace lumpy zone under non-isothermal condition. J Iron Steel Res Int 20(4):6–10CrossRefGoogle Scholar
  6. 6.
    Li P, Liu W, Zhang H (2017) Impact of potassium on gasification reaction and post-reaction strength of ferro-coke. ISIJ Int 57(11):1947–1954CrossRefGoogle Scholar
  7. 7.
    Tang HQ, Yun ZW, Fu XF, Du S (2018) Modeling and experimental study of ore-carbon briquette reduction under CO–CO2 atmosphere. Metals 8(4):205–215CrossRefGoogle Scholar

Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  1. 1.State Key Laboratory of Advance MetallurgyUniversity of Science and Technology BeijingBeijingChina

Personalised recommendations