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目前,国内外常用的制砂设备有棒磨机、辊碎机、冲击式破碎机和锤碎机等。当制砂原料硬度小,采用碰击式制砂设备时(如锤碎机),由于制得的砂粒近于立方体,且设备的能源消耗低,故常常能够取得较好的经济效果。水利电力部第九工程局在猫跳河二级、四级、五级和六级等梯级水电站施工中,针对以白云岩为制砂原料的特点,采用了800×600型、600×400型锤碎机制砂,总量达到22万立方米。
At present, sand making equipment commonly used at home and abroad are rod mill, roller crusher, impact crusher and hammer crusher. When the hardness of the raw materials for sand making is small and the impact sand making equipment (such as hammer mill) is used, good economic effects can often be obtained because the sand produced is nearly cubic and the energy consumption of the equipment is low. Ninth Engineering Bureau of Ministry of Water Conservancy and Electric Power In the construction of cascade hydropower stations such as Cathala River, Classes 4, 5 and 6, in view of the characteristics of dolomite as raw material for sand making, 800 × 600 type and 600 × 400 type hammers Crusher sand, the total reached 220,000 cubic meters.