PC6U型转子式混凝土喷射机是目前井下巷道进行喷浆支护普遍使用的设备。在现场使用中,混合料制取中的过筛砂石一般由人工操作或单独的筛砂机完成,人工操作需要3人配合,其中2人晃动筛子,1人上料。人工操作不能保证用力的均匀性,且操作人员体力消耗较大。单独的筛砂机占用空间较大,操 PC6U Rotor Sprayer is currently used in underground mine roadway shotcrete support equipment commonly used. In the field of use, the preparation of the mixture of sieved gravel generally by manual operation or a separate sieve sand machine, manual operation requires three people, of which two people shaking the sieve, 1 person feeding. Manual operation can not guarantee the uniformity of force, and the operating staff consumes more physical exertion. A separate sieve sand machine takes up more space, exercise