一、为什么要混合上料和二次筛分从砂石加工厂的成品堆料场到混凝土搅拌楼,一般要经历几十个转运堆装卸环节,每个环节都有可能产生骨料的破碎、分离和不同粒径级的混合。有的工程由于石料本身脆弱,转载环节多,落差大,破碎率高达40%以上,逊径量大大超过了允许含量,严重恶 First, why do we need to mix the material and the secondary screening from the gravel plant finished pile yard to the concrete mixing plant, generally go through dozens of transport stack handling links, each link may have broken aggregate, Separation and mixing of different particle size grades. Some projects due to the fragility of the stone itself, reproduced links, large drop, broken rate as high as 40% or more, the amount of excessively exceeded the allowable amount of bad, serious evil