What is slurry desander? 

A slurry treatment plant, also known as a mud desander, slurry purification system, or mud separation equipment, is a professional solid-liquid separation solution designed for construction piling, tunnel boring (TBM), trenchless engineering, oil drilling, and river dredging projects. It is used for slurry solid-liquid separation, mud recycling, purification recovery, and sludge dewatering and volume reduction.

The core function of this system is to solve the problems of traditional natural sedimentation, such as large land occupation, low efficiency, and severe environmental pollution. It enables slurry recycling, clean water discharge compliance, and sludge cake dehydration for transport, making it a key environmental protection equipment for modern green construction.

RMT150 (150m³/h)                                              RMT250 (250m³/h)                                              RMT500 (500m³/h)

I. Brand & Product Positioning

We are a professional Slurry Desander manufacturer in China with more than 10 years of experience in slurry treatment equipment R&D. The company holds over 90 patents and provides alternatives to imported systems.

Our core product line is the RMT Series Mud Desander System, which covers the full process from coarse separation to fine purification and deep dewatering.

II. Working Principle of Mud Desander System

The Mud Desander system / Hydrocyclone desander system adopts a multi-stage separation process combining:

“Multi-stage physical separation + chemical conditioning + mechanical dewatering”

It is based on four key technologies: gravity settling, centrifugal separation, vibration screening, and pressure filtration.

1. Primary Screening (Vibrating Screen)

After entering the system, slurry first passes through a high-frequency vibrating screen (double-deck or multi-layer screen). Large particles (>74μm), such as drill cuttings, sand, and clay lumps, are removed through vibration screening to reduce the load on downstream equipment.

2. Hydrocyclone Desanding & Desilting

The pre-screened slurry is pumped into a hydrocyclone desander unit (Mud Desander). Under high-speed centrifugal force, heavier particles (15–74μm sand and silt) are separated and discharged from the underflow, while fine slurry flows out from the overflow outlet. This achieves efficient classification and separation.

3. Chemical Conditioning (Flocculation System)

For high-viscosity and colloidal slurry, a dosing system injects polyacrylamide (PAM) flocculants, which destabilize fine particles and form larger flocs, significantly improving dewatering efficiency.

4. Deep Dewatering (Centrifuge / Filter Press)

The concentrated slurry is then processed by a decanter centrifuge or filter press system, achieving final solid-liquid separation. The sludge cake moisture content can be reduced to 30%–60%, while clean water can be reused or discharged.

III. System Structure of Slurry Desander Equipment

A modern Hydrocyclone desander system is a modular integrated system consisting of five major units:

1. Feeding System

Includes slurry pump, pipelines, and buffer tank for stable slurry transport and anti-overflow control.

2. Screening & Separation System

Core components include vibrating screens and multi-stage hydrocyclone desander units, responsible for primary and secondary solid separation.

3. Chemical Dosing System

Automatic polymer preparation tank, agitator, and dosing pump ensure precise flocculant mixing and injection.

4. Dewatering System

Optional decanter centrifuge or belt/filter press for deep sludge dewatering.

5. Electrical Control System

PLC intelligent control system with sensors, conveyors, and clean water recycling system for fully automatic operation.

Main Technical Parameters (RMT Series)

· Sludge cake moisture: 30%–60%

· Slurry recovery rate: ≥90%

· Clean water suspended solids: ≤10mg/L

· Fine separation capability: down to ≥5μm (centrifuge stage)

IV. Application Fields

The Slurry Desander / Mud Desander system is widely used in:

· Foundation piling engineering (bored piles, diaphragm walls)

· Tunnel boring machine (TBM) and shield tunneling

· Trenchless HDD and pipe jacking projects

· River dredging and sludge treatment

· Oil drilling mud recycling systems

V. Key Advantages

· High efficiency hydrocyclone desander separation system 

· Eco-friendly slurry recycling and mud treatment solution

· Reduces construction cost by 30%–50%

· Compact modular design for easy transport and installation

· Stable continuous operation for heavy-duty projects

· Suitable for complex geological conditions

VI. Conclusion

The Maynos Slurry Treatment System (RMT Series) is a high-performance Slurry Desander manufacturer solution, integrating Mud Desander, Hydrocyclone desander, and dewatering technologies. It effectively solves traditional slurry disposal problems such as large footprint, low efficiency, and environmental pollution.

It is widely used in modern infrastructure construction and is a key equipment for green, efficient, and sustainable engineering projects worldwide.