某商品砂石料项目工程砂石系统流程设计

摘要

The raw material of aggregate is the integrated biotite granodiorite.The tests of the physical mechanics proves that its dry compres-sive strength is 73.5~101 MPa and its wet compressive strength is 60.0~86.1 MPa.The system arrangement is fully demonstrated in terms of technology and economy.Features of the raw materials are considered while equipment is selected.Therefore, three-level crushing and three-level sieving are applied.Sand is processed by the vertical-shaft impact crusher.In the paper, the key technology of the system design is analyzed and summarized in combination of the technical design of the system.%混凝土骨料料源为浑然黑云母花岗闪长岩，物理力学试验成果表明，干抗压强度73．5～101 MPa，湿抗压强度60．0～86．1 MPa。系统布置从技术经济的角度进行了充分论证，设备的选型配置充分考虑了浑然黑云母花岗闪长岩的特性，破碎筛分工艺采用3段破碎、3级筛分工艺，流程砂采用立轴式冲击破碎机制砂工艺。文章主要结合系统工艺设计，对系统设计中的关键技术进行分析与总结。