制砂生产线在工作过程中，大块石料经料仓由振动给料机均匀地送进颚式破碎机进行粗碎，粗碎后的石料由胶带输送机送入圆锥破碎机（或反击式破碎机）进行中碎，中碎后的石料由胶带输送机送进振动筛进行筛分，成品砂子（筛下物）由胶带输送机送至洗砂机清洗后再通过胶带输送机送至成品料堆；大颗粒石料（筛上物）由胶带输送机送至立式冲击破碎机（制砂机）进行细碎，细碎后的石料由胶带输送机再次送进振动筛进行筛分，这样形成闭路多次循环。

In the working process of sand production line, large stones are evenly fed into jaw crusher by vibrating feeder in silo for coarse crushing. The crushed stones are fed into cone crusher (or counterattack crusher)shijiazhuang.71ix.cnwww.juanzhiji.com.cnwww.dianzugui.com.cnwww.shoutao.org.cn

www.qibiji.org.cnwww.hrbzhoucheng.net.cnby belt conveyor for medium crushing. The crushed stones are fed into vibrating screen by belt conveyor for screening, and the finished sand is fed to sand washer for cleaning. After washing, it is sent to the finished material stack by belt conveyor; large granular stone (screen top) is sent by belt conveyor to vertical impact crusher (sand making machine) for fine crushing, and fine crushed stone is sent to vibration screen again by belt conveyor for screening, thus forming closed circuit multiple cycles.