Preventing Sintering Bricks of Purple Sandy Shale from Lime Brust: Experimental Research on Fixing Calcium with Sulfur

Zhi Gang Feng; Jiang Liu; Hui Juan Li

doi:10.4028/www.scientific.net/AMR.189-193.580

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 189-193Preventing Sintering Bricks of Purple Sandy Shale...

Preventing Sintering Bricks of Purple Sandy Shale from Lime Brust: Experimental Research on Fixing Calcium with Sulfur

Abstract:

Simulating current sintering process used by the brickkiln, at 800 °C, i.e. calcination temperature of the marginal area of the brickkiln, this work conducted experimental research on preventing sintering bricks of purple sandy shale from lime brust through fixing free CaO in sintering bricks with sulfur of high-sulfur coal. It is concluded that the critical content of CaCO₃ in purple sandy shale, causing lime brust of sintering bricks, is 24% by weight, when it is below this, lime brust commonly doesn’t occur; sulfur of high-sulfur coal (if necessarily, adulterated with pyrite ore) may effectively lower the concentration of free CaO in sintering bricks, accordingly eliminate or weaken lime brust; in condition of current market price of pyrite ore, the sintering process fixing free CaO with sulfur in pyrite ore is economically feasible.

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Periodical:

Advanced Materials Research (Volumes 189-193)

Pages:

580-584

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.189-193.580

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Online since:

February 2011

Authors:

Zhi Gang Feng, Jiang Liu, Hui Juan Li

Keywords:

Fixing Calcium with Sulfur, Lime Brust, Purple Sandy Shale, Sintering Brick

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