Study of the Double-Layer Sintering Process with Stand-Support
METALS(2022)
摘要
It has been widely reported that the sintering productivity and sintering bed permeability would be reduced when adopting ultra-deep bed sintering. To solve the aforementioned problems, the double-layer sintering process with stand-support (DLSP-S) is proposed in this research to achieve the sintering of a 1000 mm ultra-deep bed. The results showed that compared with the double-layer sintering process, the DLSP-S improved the yield and productivity of sintering from 64.53% and 1.76 t center dot m(-2)center dot h(-1) to 66.74% and 2.12 t center dot m(-2)center dot h(-1), respectively. The research findings showed that the quasi-fines of 5-10 mm were reduced by 2.1% when the stand height increased from 0 mm to 350 mm, which further illustrated the effect of the DLSP-S. During the DLSP-S, the air permeability of the sinter bed was evidently improved and the content of O-2 in the lower layer was enhanced. The present study provides an effective approach to improve the bed permeability and sintering productivity in high-bed sintering.
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关键词
double-layer sintering,stand-support sintering,air permeability,ultra-deep bed sintering
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