分级楼，也叫石英砂综合楼，他是集水塔，筛分，脱泥，水力分级，磁选，精选，分级，脱水为一体化的系统塔楼！一般尺寸约为长24米宽为19米，最高不超40米。是石英砂磨矿系统过后进入的不可或缺且至关重要的核心体系。

　　The grading building,also known as the quartz sand comprehensive building,is an integrated system tower for water collection tower,screening,desilting,hydraulic classification,magnetic separation,selection,classification,and dehydration!The general size is approximately 24 meters in length and 19 meters in width,with a maximum of 40 meters.It is an indispensable and crucial core system that enters after the quartz sand grinding system.