以节约粘土资源及开发新型建筑材料为目的,利用长江沿岸低品位石英砂开发研制保温隔热砖.研究了球磨工艺对低品位石英砂细化效果的影响,为制备高性能保温隔热砖奠定了原料基础.结果表明,随着球磨时间的延长,石英砂粉体平均粒径逐渐减小,粒度分布逐渐变窄;随着球磨转速的增加,石英砂粉体平均粒径逐渐减小,粒度分布逐渐变窄;随着球磨装料量的增多,石英砂平均粒径逐渐变大,粒度分布逐渐变宽.综合整个工艺和性能考虑,确定石英砂球磨工艺为球磨时间60min、球磨转速300r/min、球磨机装料量200g/L.
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