砂石分离机又叫混凝土回收机，是混凝土搅拌站拌合后未凝固的混凝土回收再利用的环保型设备。设备具有结构紧凑，耗能低，沙石回收能力强的优点，是混凝土搅拌站验收的必备设备之一。

The sand separator is also called the concrete recovery machine, which is the environmental protection type equipment for recycling and reusing of the concrete after mixing the concrete mixing station. The equipment has the advantages of compact structure, low energy consumption and strong ability to recover sand and stone. It is one of the necessary equipment for acceptance of concrete mixing station.

众所周知，高速铁路建设中混凝土是主要原材料，尤其是桥梁和桥墩使用的更是高标号的混凝土。高速铁路建设又有混凝土运送距离远、道路难行、又加之混凝土标号高凝固时间短的特点，所以运送混凝土的罐车需要及时的清洗以免影响下次使用，砂石分离机不仅减少了对环境的排放有为项目建设节省了大量的资金，所以在高铁建设项目中砂石分离机是不可或缺的设备之一。

It is well known that concrete is the main raw material in the construction of high speed railway, especially the high marked concrete used in bridges and piers. High speed railway construction and concrete transport distance, difficult road, and combined with the characteristics of high grade concrete short setting time, so the need for timely delivery of concrete tank cleaning so as not to affect the next use, sand separator not only reduces the environmental emissions for construction projects to save a lot of money, so the sand in the construction of high-speed rail the project is one of the indispensable equipment in the separator.