Study on Performance of High Al2O3 Slag and Smelting Practice of 1 750 m3 Blast Furnace at Jiyuan Steel

• Published in: Teshugang
• Main Authors: Li Rong, Guo Jiang, Wang Yulian
• Format: Article
• Language: Chinese
• Published: Editorial Office of Special Steel 2012-09-01
• Subjects: & nbsp; 1 750 m3 Blast Furnace, High Al2O3 Slag, Smelting
• Online Access: http://www.specialsteeljournal.com/thesisDetails?columnId=129787122&Fpath=home&index=0
• ISSN: 1003-8620

Based on the analysis results of study on performance of high Al₂O₃(20% ) slag in lab, results show that it is available to improve the flowability of slag, increase permeability index and improve stability of blast furnace ( BF) by controlling basicity of binary slag 1. 15 ~ 1. 20, basicity of quarternary slag 0. 95 ~ 1. 05, controlling MgO content in slag 10. 0% ~ 11. 5% and temperature of slag 1 500 ~ 1 510 ℃ , and the corresponding measures for smelting by high Al₂O₃slag are proposed including adding serpentine, conditioning upper and lower parts and controlling charging crude fuel to ensure BF stability run and increase technical-economic indexes.