IMARC EXPO 2025Products & Services Dewatering bucket wheels

Dewatering bucket wheels

Exhibitor
Kisa GmbH

KISA Dewatering bucket wheels

General

Dewatering bucket wheels are used for dewatering sand and gravel, feeding suction dredgers, and recovering fine sand.

  • Wheel diameters: up to 8000 mm

  • Wheel width: up to 2800 mm

  • Solids output: to 1500 t/h

  • Grain sizes: up to 200 mm

KISA Products

Our Dewatering bucket wheels

So-called suction dredgers are usually used in the gravel industry. The resulting water-gravel mixture is transported to the processing plant by means of hydraulic conveying. Within the plant, the material is transported via conveyor belts. For this purpose, however, it must be dried in advance, as it would otherwise, due to the high water content, flow off the belt.

 

Mode of operation:

The water-gravel mixture enters the machine, which is already filled with water, via the inlet chute.

 

Scooping elements, which are arranged in a circle in the rotating wheel body and have been provided with a sieve opening on the underside, lift up the fallen solids portion by portion. Depending on the mixing ratio between gravel and water, the speed is regulated fully automatically.

 

During half a revolution, the gravel now loses so much moisture that it “becomes pumpable”. A special device inside the wheel body, intensifies the drying process with the help of negative pressure.

 

Via chutes, the gravel with a small residual moisture reaches a conveyor belt and can be fed to the following production steps.

 

Types of construction:

The greater your mixture output, the larger the dewatering scoop wheel must be. Wheel diameters from 2.6 to 8m and wheel widths from 0.6 to 2.8m offer a wide range of possibilities.

 

In case of high fines content, which should not be lost via the water overflows, it is necessary to work with a trough widening. The endings: S; M; L; of the type number, stand for the length of the feed spirals or the width of the trough.

 

The wider the trough, the greater the water surface and the more time available for sedimentation of fine components of the material, since the water overflows are located at the edge of the machine.

 

Feed spirals convey the fines at the bottom towards the wheel body.

Further reading

Dewatering bucket wheels

Dewatering bucket wheels

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