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What is a screw press

The screw press is the supporting equipment of the dirt blocking grid. It is composed of a feed hopper, a pressing screw, a spiral pipe, a slag discharge pipe and a driving device. The slag picked up by the grid or filtered filter slag enters the spiral tube from the feed hopper, and is squeezed and dehydrated under the action of the squeezing screw. The water squeezed out from the material is collected into the water receiving basin and discharged by the drain pipe. The material is compressed and discharged through the slag discharge pipe, which can greatly reduce the weight and volume of debris and other debris. The screw press is composed of drainage area, feeding area, screw conveying area, and discharging area. The grid slag enters the material area and is compacted in the compaction zone by a screw press, and then the grid slag is discharged, and the waste liquid flows into the water collecting pipe from the grid.


1. The shaftless screw is adopted, the contact surface with the material is small, the friction is low, and the extrusion efficiency can be improved. And there is no blockage, no entanglement phenomenon;

2. The equipment is made of stainless steel, with high strength, good corrosion resistance and long service life;

3. The drive device adopts the shaft-mounted direct drive mode, which is stable and reliable in operation and saves energy consumption;

4. The outlet is equipped with a spring baffle to increase the extrusion force and increase the dehydration rate;

5. Except for the inlet and outlet, the rest adopt a sealed structure, and the environment is clean and hygienic.

Scope of applicationedit