The refuse feeding machine has the advantages of simple structure and high conveyingefficiency.
本实用新型结构简单，输送效率高。
2
Solid particulate conveying characteristic is given by backwards leakage flow rate through intermeshing region and formulated as a conveyingefficiency d.
粒子的固体输送特性，在啮合段形成的返向漏流速率是依靠螺杆的设计参数和质量密度。
3
By adopting the device, the vacuum tube can be always positioned on the back of the bed layer of the catalyst, thereby improving the conveyingefficiency.