High-frequency screens for washing and dewatering of fine rock material

For this technological process, single-deck high-frequency vibrating screens are typically used. These screens feature an adjustable inclination angle and an integrated washing system designed to remove fine rock material beneath the screening surface.

Due to the effect of high-frequency vibrations with low amplitude, water mixed with fine solid particles filters through the slots in the screening surface, while coarser solid material moves along the surface to the discharge zone. The specially designed screen box and surface allow for excellent results with ultrafine materials, achieving moisture levels in the range of 8–25%, depending on the material’s nature and particle size distribution.

The material and slot size of the screening surface are individually calculated based on specific processing requirements.

This type of screen is most commonly used alongside hydrocyclones in washing and sorting complexes for coal beneficiation, kaolin processing, and the preparation of sand-gravel mixtures for concrete plants.