煅烧脱硫石膏细度对其性能的影响

Effect of Fineness on the Performance of Calcined FGD Gypsum

对煅烧处理后的脱硫石膏进行粉磨处理。研究在不同细度下,脱硫石膏力学性能、颗粒级配、比表面积、微观结构与白度的变化。结果表明,随着脱硫石膏细度的增加,力学性能明显呈下降趋势。经过煅烧处理脱硫石膏,颗粒形状不规则,在颗粒表面上比较松散,表现出明显的层状结构。

The calcined FGD gypsum was milled at different milling time. The effect of fineness on the mechanical property, particle size distribution, specific area, microstructure and whiteness of calcined FGD gypsum was researched. The mechanical property of FGD gypsum was bad with the increase of fineness. After calcination process of FGD gypsum, irregular particle shape, on the particle surface is loose, showing obvious layered structure.