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    中华视窗  
    浅析制砂机械设备生产道路使用中存在的问题
    作者:佚名  来源:网络  时间:2019-5-14 14:15:11

     排他分析砂机设备生产道路的使用情况,大家都知道,公路天然砂一般是河沙,是一种有限的自然资源。由于沥青混合料颗粒光滑,有利于提高沥青混合料的相容性,但与沥青的附着力差会降低沥青混合料的水稳定性,这就限制了沥青混合料的用量不宜过大,例如交流沥青混合料的用量通常在10%左右。石屑是其他粗规格材料(即废料)生产过程中的副产品。显然,它的质量不能得到有效的保证。其质量特点是强度低,片状颗粒含量高,土壤和粉尘含量高。沥青混合料不仅不能保证级配的稳定性,而且会给混合料的质量带来隐患。与天然砂相比,
      机制砂具有理想的颗粒表面结构,增加了颗粒间的摩擦,为路面提供了更好的稳定性。制砂机工作原理方面,简单一点说是石打石的原理。让石子在自然下落过程中与经过叶轮加速甩出来的石子相互碰撞,从而达到破碎的目的。而被加速甩出的石子与自然下落的石子冲撞时又形成一个涡流,返回过程中又进行2次破碎,所以在运行过程中对机器反击板的磨损是很少的。同时,提高了沥青的吸附能力,增加了沥青薄膜的厚度。与石屑相比,机械砂制备的沥青混合料具有粒度规则、片状颗粒少、含尘少、无土等优点,可获得更理想的路面性能。
      我国大部分道路碎石加工厂的实际应用技术水平落后,管理市场化程度低。砂石生产线是一种生产建筑用砂和石料的专用生产线设备。砂石生产线是按照出料类型来定义的,生产出来的成品包括石料和人工砂,因此也称砂石料生产线。相当于石料生产线和制砂生产线的结合。从短期来看,石屑作为沥青混合料的主要细集料是不可能改变的。然而,了解机械砂的生产及其对尽快提高沥青混合料性能的贡献,将促进我国沥青路面技术的进步。提高人们的质量改进意识是必要的。采购砂机设备,咨询砂机价格,设计砂生产线!


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