Analysis of Vanadium-Bearing Titanomagnetite Sintering Process by Dissection of Sintering Bed

作     者：BAI Yong-qiang CHENG Shu-sen BAI Yan-ming 

作者机构：School of Metallurgical and Ecological Engineering University of Science and Technology Beijing Beijing100083 Chinas Chenggang Company Hebei Iron and Steel Co Ltd Chengde 062001 Hebei China 

出 版 物：《Journal of Iron and Steel Research International》 (JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL)

年 卷 期：2011年第18卷第6期

页      面：8-15,36页

核心收录：

学科分类：081902[工学-矿物加工工程] 0819[工学-矿业工程] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080601[工学-冶金物理化学] 0703[理学-化学] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：Item Sponsored by National Natural Science Foundation of China(60872147) 

主　　题：sintering vanadium hearing titanomagnetite thermal state bed dissection mineralogy characteristic 

摘      要：Many problems appear in the sintering process of vanadium-bearing titanomagnetite, such as high energy consumption and low productivity; simer quality is also very poor for its low tumble strength and high reduction deg- radation. Sinter productivity and quality are dominated by bed permeability and mineralogy structure, which are highly influenced by the thermal state of sintering bed, so the sintering process of titanomagnetite is researched by bed dissection in this work. Temperature evolution curves of sinter materials were measured, and the results show that melting duration, peak temperature duration and sintering temperature of different layers differ greatly from each other; flame front speed and vertical sintering speed of bed lower region are much smaller than those of bed up- per region. Simultaneously, sinter samples were collected from different layers, and their mineralogy characteristics are analyzed; sinters from bed lower region have poor mineralogy structure, and the amounts of perovskite and dieM- cium silicate increase intensively, which are bad for sinter strength and reduction degradation property. Measures are proposed to improve the quality and productivity of titanomagnetite sinter.