2006•Boiler TechnologyRequires access
Experimental Research on Desulfurized Gypsum Calcination in Fluidized Bed
Yang Hairui
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Abstract
The laboratory scale electric hearting fluidized bed is used to calcine desulfurized gypsum into calcined gypsum,and the calcined gypsum will have maximum conversion after 70 minutes calcinations at temperature in 110 ℃~130 ℃.At this condition,the β-type half-water calcium sulfate is produced successfully.Its quality can meet the technique index of architecture gypsum.Besides temperature,the factor which decides the quality of calcined gypsum is calcination time.The calcination times and temperatures required in different equipments are also different.