结构紧凑、横截面尺寸小、密封性好、运行稳定；

Compact structure, small cross section size, good sealing, stable operation;

便于中间装料和卸料，输送方向可逆向，也可同时向相反两个方向输送；

It is convenient for intermediate loading and unloading. The conveying direction can be reversed or opposite at the same time;

输送过程中还可对物料进行搅拌、混合、加热和冷却等作业；

In the process of conveying, materials can be stirred, mixed, heated and cooled;

结构简单，易操作、维护。

Simple structure, easy operation and maintenance.