关键词: 陶瓷砖坯体;干法粉磨;悬浮态造粒;节能减排

Abstract: The study on the preparation parameters of green powder by using Dry Suspended Granulation (DSG)in ceramic tile production process was introduced.The research started by changing the humidifying chamber wall material of process, process binder content, raw material feeding rate and section wind velocity of humidifying cavity.The product water content,the receiving rate and granulation rate used as the evaluating indicator.The results show that the material of the humidifying chamber wall material has a great influence on the product.Teflon has a much better result than plexiglass material. When the binder content is about 1%,the contact between powder and droplet is the best,which leads to the best results.With the increase of feeding rate, receiving rate increases, but water content rate and granulation rate increased first,then decreased;the maximum value appeared at 3.1 kg/min.With the increase of section wind velocity, grain rate and water content decreased, while the receiving rate increased.The particle size and particle flowability of the solid powder prepared by the DSG optimized parameter scheme is better,which is close to the wet process.

Key words: green powder;dry grinding;suspended granulation;energy conservation and emissions reduction