关键词: 陶瓷墙地砖;干法制粉;造粒立柱;均匀度

Abstract: According to the influence of the dry granulation column on the homogeneity of the ceramic tile. Based on different geometric parameters,particle preparation by dry milling,the effect of prilling column on the uniformity of particles was analyzed. The experiment shows that:When the geometric parameters of granulation column are 6 mm,7 mm,8 mm,9 mm,10 mm,the maximum homogeneity of the corresponding particle is 4 . 81 ,4 . 97 ,5 . 23 ,5 . 17 ,4 . 99 ,and the average homogeneity of the corresponding blank particles is 4 . 71 ,4 . 85 ,4 . 98 ,4 . 87 ,4 . 83 . The numerical simulation results show that when the geometric parameters of prilling column are 6 mm,7 mm,8 mm,the dispersion of the powder is getting better,reunion phenomenon gradually disappeared;When the geometric parameters of prilling column are 9 mm,10 mm,the dispersion of powders gradually become worse,the phenomenon of agglomeration is obvious. Comprehensive analysed description:When the geometric parameter of the prilling column is 8 mm,the homogeneity of particles is the largest,powder dispersion is the best, phenomenon of agglomeration is not obvious,and the experimental results are in good agreement with the numerical simulation.

Key words: ceramic wall tiles;dry granulation;prilling column;homogeneity