Cassava Starch Slurry Contains Excessive Mud, Special Desander Achieves Efficient Separation

Cassava raw materials easily carry large amounts of mud, fine sand and grit during planting and harvesting. After crushing and pulping, the slurry has a particularly high impurity level—making cassava starch the most difficult to process among all starch types due to high mud content.

If mud and sand are not fully removed in the pretreatment stage, they will enter hydrocyclones, pumps, screens and dryers, causing frequent pipe blockages, accelerated equipment wear, reduced separation accuracy and unplanned downtime. Meanwhile, residual mud drastically reduces starch whiteness, raises ash content, weakens texture and application performance, and lowers final product grade.

For cassava starch factories, efficient mud and sand removal is essential to stabilize production, improve quality and reduce losses.

The Desander is a front‑end centrifugal separation unit specially designed for high‑mud starch slurry. Installed before the main separation system, it efficiently removes mud, clods and heavy particles to purify the slurry.

With an eccentric tangential inlet, the unit creates a strong swirling flow inside the cylinder. Under the dual action of centrifugal force and gravity, higher‑density mud and sand are thrown to the cone wall and settle into the bottom hopper, while clean starch slurry flows upward through the central tube to the next process.

The whole unit has no moving parts, ensuring stable operation, no jamming, no damage to starch granules and extremely low failure rate. The main body is made of SS304 stainless steel or wear‑resistant nylon, with high erosion and corrosion resistance for long service life, adapting to the high‑humidity, high‑mud, continuous production environment of cassava starch.

This equipment is CE certified to meet international food processing standards, with easy installation and very low maintenance. It stably supports 10t/h, 15t/h, 20t/h capacities and achieves efficient separation of mud/sand from starch slurry without affecting line flow.

1. Match model to actual capacity: DS2 (10t/h), DS4 (15t/h), DS4+1 (20t/h) to ensure sufficient mud/sand separation capacity.
2. Prefer SS304 or wear‑resistant nylon for better durability and longer service life under high‑mud conditions.
3. Install strictly after pulping and before refining cyclones to form a standard “desanding → refining” process flow.
4. Choose CE‑certified, no‑moving‑parts, low‑maintenance structure to improve stability and reduce overseas compliance risks.
5. Use regular manual discharge to avoid mud accumulation and maintain consistent separation performance.