Application of full active lime intensified sintering technology in ultra-thick layer
ZHANG Jian-liang1,2, KAN Yong-hai3, ZHANG Shi-jun3, LIU Zheng-jian1, NIU Le-le1, WANG Gui-lin1
1. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China; 2. School of Chemical Engineering, The University of Queensland, St Lucia 4072, Australia; 3. Tiangang United Special Steel Co. , Ltd. , Tianjin 301500, China
Abstract:In order to achieve high-efficiency and stable ultra-thick bed sintering, from the theoretical analysis of the role of quicklime in the sintering material layers, some traditional sintering concepts were abandoned, and the full active lime intensified sintering (FALIS) was proposed. This technology is based on the full quicklime flux structure and is assisted by the high-efficiency digestion technology and high material-temperature technology to form a complete set of comprehensive sintering technology concepts. FALIS has been put into practice on the two 230 m2 sintering machines of Tiangang United Special Steel for several years. It has achieved the long-term high-efficiency and stable of sintering with a bed height of 1 000 mm. The productivity reached 1.87 t/(m2·h) and solid fuel consumption was only 41.85 kg/t, and the sinter quality also reached a high level. Both theory and practice have proved the feasibility and superiority of FALIS technology and its concepts in the field of ultra-thick bed sintering. It is worthy of further development and application under the current severe situation of environmental protection and limited production.
张建良, 阚永海, 张士军, 刘征建, 牛乐乐, 王桂林. 全活性石灰强化烧结技术在超厚料层中的应用[J]. 钢铁, 2020, 55(8): 56-61.
ZHANG Jian-liang, KAN Yong-hai, ZHANG Shi-jun, LIU Zheng-jian, NIU Le-le, WANG Gui-lin. Application of full active lime intensified sintering technology in ultra-thick layer[J]. Iron and Steel, 2020, 55(8): 56-61.
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