Experimental Analysis of the Process Performance and Quality Index in the Waste Gas Recovery Iron Ore Sintering—Based on a Plant Test. Issue 8 (1st September 2015)

• Record Type: Journal Article
• Authors: Wang, Gan; Wen, Zhi; Lou, Guofeng; Dou, Ruifeng; Li, Xianwei
• Is Part Of: Heat transfer - Asian research. Volume 45:Issue 8(2016)
• Page Start: 832
• Page End: 843
• Publication Date: 2015-09-01
• Subjects: iron ore sinter -- waste gas recovery -- plant test -- temperature -- oxygen content; Heat -- Transmission -- Periodicals; Electronic journals; 621.4022
• DOI: 10.1002/htj.21195
• Languages: English
• ISSNs: 1099-2871

Abstract

Abstract : Effects of different waste gas recovery sintering (WGRS) methods on the quality index and process performance of the iron ore sinter were studied by a plant test, compared to the conventional sintering (CS). Two key operational parameters, namely, the temperature and oxygen content of the recycling gas, were selectively discussed. The values of these two parameters were measured in the gas‐mixing chamber. The sintering mixture with a constant proportion was obtained ensuring the similar mass averaged particle sizes. The changes in the sintering process performance, such as the exhaust emission regulation, productivity, energy consumption, and sintering efficiency of the system, were analyzed. The quality indexes including the yield, chemical composition and size distribution of the sinter cake, the tumbler index (TI), and the reducibility (RI) in different methods of WGRS were also analyzed. Systematic analyses demonstrate the feasibility of replacing the CS production with the WGRS technology. The optimal temperature range of the recycling gas was 200 °C∼250 °C, and the suggested values of oxygen content was closed to 21%.