【摘要】 介绍了国内外砂石市场状况和国内砂石业面临的产品质量低、生产成本高等问题。我国亟须引进、消化国外先进技术 ,研究开发适合我国国情的先进生产工艺和高效破碎新设备 ,改造原有生产线 ;提高产品质量 ,尽可能就地取材 ,扩大机制砂生产规模 ,加速我国机制砂产业的发展 ,满足大规模建设的需求。更多还原

【Abstract】 This paper involves situation of sand market both at home and abroad and the problems lain in ahead of domestic sand industry,such as low product quality and high production cost.Advanced foreign technologies must be introduced and digested as soon as possible.The advanced production technology and high efficiency crushers suitable to Chinese sand industry should be speedily developed.At the same time,old production lines should be reformed.It’s better for us to use local raw materials for production of high quality sand.We′ll try our best to enlarge the scale of pelletized sand production,speeding up the development of pelletized sand industry,so as to meet the demand of large scale construction.更多还原