采用干法造粒工艺制备轻质陶瓷砖的研究

Research on preparation of lightweight foamed ceramic tile by dry granulation process

以抛光废渣为主要原料,结合其他陶瓷原料,采用干法造粒工艺,经辊道窑快速烧成,制备了轻质陶瓷砖.通过正交试验结合综合性能指数量化得出最佳配方,研究了不同原料影响,结果表明:发泡性能影响由大到小依次为:黑滑石>高铝泥>力鸿砂>恒峰砂.黑滑石提高发泡性能,高铝泥作用与其相反.最佳配方为抛光废渣52.1%、高铝泥10.4%、恒峰砂20.8%、力鸿砂12.5%、黑滑石4.2%.制备的轻质陶瓷砖抗折强度为3.19 MPa,吸水率2.31%,显气孔率1.72%,容重0.74g/cm3.

Lightweight foamed ceramic tile was sintered by roller kiln in ceramics enterprise with granulation process using polishing tile waste combined other ceramic raw materials ,the optimized formula was acquired by orthogonal experiment with comprehensive evaluation in‐dex .The foaming degree were descending sorted as black talc＆gt; high alumina clay＆gt; Lihong quartz sands＆gt; Hengfeng quartz sands .Black talc increased foaming properties and reduced bending strength of specimen while high alumina clay had opposite effect .The optimized lightweight ceramic tile was prepared by polishing tile waste 52 .1% ,high alumina clay 10 .4% ,Hengfeng quartz sands 20 .8% ,and Lihong quartz sands 12 .5% and black talc 4 .2% .The properties were as follows ：bending strength 3 .19 MPa ,water absorption 2 .31% , apparent porosity 1 .72% ,bulk density 0 .74 g/cm3 .