Effect of Charging Mode on Sinter Segregation and Gas Flow Distribution in Vertical Cooling Furnace

doi:10.12068/j.issn.1005-3026.2022.10.008

Abstract

Abstract: The discrete element method and porous medium model are used to study the effects of intermediate distribution and edge-center distribution on sinter segregation， voidage distribution， gas flow distribution and gas pressure in Meigang vertical cooling furnace， so as to optimize its distribution mode. The results show that compared with the intermediate distribution， using edge-center distribution， the large particle segregation area changes from the central area and the upper sidewall area to the middle area， and the sinter segregation is improved. Although the bed voidage decreases， it is more evenly distributed along the width direction. Under the condition of intermediate distribution， the gas velocity increases gradually from the sidewall area to the central area， and the gas pressure is small. In the edge-center distribution， the gas velocity shows a “Λ” type distribution where it is larger in the middle area， smaller in the center area and the sidewall area， whereas the velocity difference between the above areas decreases. The gas pressure increases greatly， while it can decrease synchronously along the height direction. Based on the above factors， the edge-center distribution is recommended.

Key words: sinter; vertical cooling furnace; segregation ; voidage; gas flow distribution; gas pressure distribution

CLC Number:

TF046

QI Teng-fei， HUANG Jun， SUN Jun-jie， ZHANG Yong-jie. Effect of Charging Mode on Sinter Segregation and Gas Flow Distribution in Vertical Cooling Furnace[J]. Journal of Northeastern University(Natural Science), 2022, 43(10): 1422-1429.

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