In the form of transmission screw conveyor is divided into shaft screw conveyor and shaftless screw conveyor, in appearance it is divided into U-type screw conveyor and pipe screw conveyor. Spiral blade welded in screw conveyor rotary shaft, it has different types such as belt surface type, blade surface type, which is influenced the delivery of different material solid surface type.
Shaft screw conveyor is suitable for non-viscous dry powder materials and small particle materials (such as: cement, fly ash, lime, grain, etc.).Shaftless screw conveyor is suitable for conveyor by viscous and winding materials (such as sludge, biomass, waste, etc.)
The working principle of screw conveyor is rotating spiral blade and pushing the material moves on. For its own weight and screw conveyor casing material friction resistance of the material, that cause the material will not spinning force with the blades of screw conveyor.
Spiral blade welded in screw conveyor rotary shaft, it has different types such as belt surface type, blade surface type, which is influenced the delivery of different material solid surface type.
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