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Shaftless Screw Conveyors for Treatment Plant Residuals


Shaftless screw conveyors are used in sewage treatment plants to transport materials such as decontamination machine grid slag and filter press mud cake with a net distance of 50mm in the fine grid of the sewage treatment plant.


The dewatered sludge cake shall be transported to the sludge transporter by the sludge shaftless screw conveyor, and then transported to the sludge waste landfill for landfill treatment.


Dahan’s technical experts recommend installing a shaftless screw conveyor made of stainless steel. The advantages are as follows:

1. The sludge has many impurities and strong viscosity. The shaftless design can effectively prevent the material from clogging;

2. The material is polluting, and the fully enclosed conveying method is adopted to reduce material leakage.

3. The conveying length can reach 60 meters, and the conveying capacity is 1.5 times that of the traditional shaft screw conveyor with the same diameter.

Note: When the water content of the material is greater than 80%, the conveying inclination angle should be ≤25°


The Production Head of the company agreed with the suggestion of installing Inline Shaftless Screw Conveyors made of High-Quality Stainless Steel with grill attached at outlet.

After using the machine for almost 4 months the Production Head had word with Sales Engineer&he said

"The water content of our sludge is approximately 60%. After using it for so long, we haven't encountered the problem of material accumulation, and the transportation volume basically meets our requirements."

Friday June-28 2024  11:34:02
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