Examples of wash-bear Processing

Separation of Contaminants.

When processing construction waste, recycled aggregates and mineral mixtures, contaminants are a decisive quality factor. Lightweight materials such as aerated concrete, wood, plastics, films, paper or cable residues can make the reuse of the material more difficult and reduce the quality of the final product.

The wash-bear® separates these contaminants using a robust sink-float process. The material is separated in a water bath according to its specific density. The mineral fraction sinks, while lightweight components float to the surface and are automatically discharged.

In addition to its high process efficiency, which enables an almost complete separation of contaminants and mineral fractions, the wash-bear® also offers outstanding economic efficiency. The closed system only consumes water through adhesion to the discharged mineral material. In practical operation, water consumption is approximately 4–8 m³ during a 10-hour shift, with the water supply automatically regulated by a float system.

Why lightweight materials must be removed from recycled aggregates.

Lightweight materials can impair both the technical quality and the visual purity of recycled construction materials. Aerated concrete, wood, plastics and polystyrene in particular are undesirable in mineral recycling material.

Sink-float separation simply explained.

The process uses the different densities of the materials. Heavy mineral components sink in the water bath and are discharged by the screw. Lightweight components float to the surface and are removed by the brush belt. The separation options can be further expanded, for example, with an optional air classifier.

Low water consumption in a closed system.

The wash-bear® operates with a closed system. Water is mainly lost through adhesion to the discharged material. The water level is regulated automatically.

Integration into existing process chains.

Thanks to its compact dimensions, the wash-bear® can be integrated into existing processing operations. Typical combinations include crushers, screening plants, conveyors, air classifiers and other recycling systems.

wash-bear in 

Processing of Demolition, Recyclable Materials, and Recycling

wash-bear in Action.