Starch Slurry with Excessive Sand & Impurities, Desander Protects Downstream Equipment

In wet starch processing for cassava, potato, corn and sweet potato, crushed slurry often contains sand, grit, mud and hard particles. These impurities will enter downstream hydrocyclones, pumps, screens and key components, causing wear, blockage, lower separation efficiency and higher failure rates. Impurities also reduce starch whiteness and purity, affecting product quality.

As a pre-separation unit before the main hydrocyclone group, the Desander removes sand and impurities before refining, protecting equipment and stabilizing production.

The Desander uses centrifugal separation. The eccentric inlet creates a downward swirling flow; under inertial centrifugal force and gravity, sand and slag collect at the cone bottom, while cleaned slurry flows upward and discharges. With no moving parts, the system runs reliably with minimal downtime.

The machine is constructed in SS304 or wear-resistant nylon for high durability in abrasive conditions. It features compact structure and easy installation, suitable for new and upgraded lines. The unit is CE certified to meet European safety standards for food processing.

It supports stable capacity from 10–20t/h and achieves continuous desanding without damaging starch particles, providing cleaner feed to protect downstream equipment.

1. Match model to line capacity: DS2(10t/h), DS4(15t/h), DS4+1(20t/h) for optimal performance.
2. Choose SS304 or wear-resistant nylon for longer service life in high-impurity working conditions.
3. Select no-moving-parts and CE-certified units to lower maintenance and improve safety.
4. Install before main separation equipment to form a stable “pre-desanding + refining” process layout.