Traditional Sand Removal Prone to Blocking, Hydrocyclone with No Filter Screen Runs More Reliably
April 13, 2026
In cassava starch production lines, traditional sand removal devices mostly rely on filter screens, meshes or sedimentation tanks for solid-liquid separation, which generally have problems such as easy blocking, frequent cleaning and unstable operation. Fiber, sand and mud mixtures in the slurry easily attach to the screen surface, resulting in reduced flow, sharp drop in sand removal efficiency, and even failures such as pipeline pressure buildup and overflow.
Manual cleaning is not only labor-intensive and time-consuming, but also causes frequent production shutdowns, seriously affecting continuous production efficiency. At the same time, sand removal efficiency fluctuates greatly after blocking, leading to unstable starch purity and aggravated equipment wear, which has become an important pain point restricting large-scale production.
The Hydrocyclone adopts a pure centrifugal separation principle with no filter screens or meshes throughout the process, fundamentally solving the blocking problem and achieving continuous and stable operation.
Slurry forms high-speed swirling flow in the cyclone chamber. Heavy sand and slag sink along the cone wall and discharge, while clean starch slurry overflows upward. There is no screen barrier in the whole process, so no material hanging, blocking or fiber winding occurs. It can still run smoothly even under high-concentration and high-fiber working conditions.
The equipment is compact, wear-resistant and corrosion-resistant, supporting 24-hour uninterrupted operation without manual supervision. While ensuring high-efficiency sand removal, it greatly reduces downtime, improves production line continuity and reliability, and effectively lowers operation and maintenance costs and labor input.
- Choose filter-free pure centrifugal Hydrocyclone to eliminate blocking and adapt to complex starch slurry conditions.
- Pay attention to optimized cone angle and flow channel design to ensure smooth discharge of mud and sand without accumulation or jamming.
- Select wear-resistant and corrosion-resistant materials such as polyurethane and wear-resistant steel to extend service life.
- Select the model according to actual flow rate to ensure reasonable flow velocity in the cyclone chamber, balancing separation and smoothness.
- Prioritize pipeline direct connection installation for easy integration into existing production lines with simple modification.

