在粘土砖瓦生产过程中 ,粘土中时常含有料礓石、小石块、贝壳等降低砖瓦质量的杂质。因此 ,合理地选取粘土破碎除杂质设备非常必要 ,要求所选设备一要提高剔除杂质的速度 ,满足连续生产的要求 ;二要能够剔除不同粒径的杂质。目前 ,国内常用破碎设备发挥着不同的作用 ,现分别简 In clay brick production, clay often contains impurities such as gangue, small stones and shells that reduce the quality of the brick. Therefore, it is very necessary to reasonably select the equipment for crushing and removing impurities from the clay. It is required that the selected equipment must increase the speed of rejecting impurities and meet the requirements for continuous production. Second, it must be able to eliminate impurities with different particle sizes. At present, domestic commonly used crushing equipments play different roles.