A study on the production processes of granulated iron

19th International Scientific Conference on Metallurgy: Technologies, Innovation, Quality

材料科学;金属学

Nokhrina, O.I.^1 ; Rozhikhina, I.D.^1 ; Khodosov, I.E.^1

Department of Metallurgy of Ferrous Metals, Siberian State Industrial University, 42 Kirova Street, Novokuznetsk

654007, Russia^1

关键词: Coal consumption;    High quality;    High-content;    Metal granules;    Metallization process;    Production process;    Temperature increase;    Time parameter;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/150/1/012003/pdf
DOI  :  10.1088/1757-899X/150/1/012003

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The results of theoretical and experimental studies on the production process of high-quality granulated iron using hematite-magnetite iron ore and coal of different brands as a raw material are presented. According to the research the optimal coal consumption, temperature and time parameters of the metallization process, necessary for obtaining metallized materials with the specified composition and metallization degree, are defined. The conditions for the formation of metal granules with high content (over 98%) of primary iron are found. The process includes two stages: initially the solid-phase reduction of iron from oxides with production of metallized sponge material is carried out, further as the temperature increases the separation of slag and metal phases takes place.