High Rate Thickener

 

In copper hydrometallurgical plants and mineral processing operations, thickening is an essential step for recovering water, increasing slurry concentration, and preparing materials for downstream processes.

PRS High Rate Thickener is designed for high-capacity solid-liquid separation applications, providing improved settling performance, clearer overflow water, and higher underflow density through optimized feed distribution and automatic dilution technology.

Compared with conventional thickeners, the high rate thickener increases processing capacity within the same footprint while reducing water consumption and improving overall plant efficiency.

 

 

 

 

Stronger Structure with Reduced Installation Work

One of the key features of PRS High Rate Thickener is the flexible tank structure designed based on cable theory.

The tank bottom adopts a shell-like flexible plate structure combined with radial beams, creating a highly efficient load-bearing system.

Compared with traditional rigid steel tanks, this design provides:

 

• Higher structural reliability

The flexible bottom structure distributes stress more evenly, improving overall strength and reducing deformation risks.

• Faster installation

The modular steel structure reduces on-site adjustment work and shortens installation time.

• Better installation quality

Components can be pre-assembled and inspected before delivery, reducing installation errors at site.

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The feedwell system directly affects flocculation, settling performance, and final underflow concentration.

PRS high rate thickener adopts a dual-stage feed distribution design consisting of:

• Inner distribution chamber
• Outer feedwell

This design helps achieve:

• Better slurry mixing
• Reduced short-circuit flow
• More uniform solids distribution
• Improved settling conditions

The optimized flow path allows slurry to enter the thickener evenly, creating favorable conditions for floc formation and sedimentation.

 

       

 

Stable slurry concentration is critical for efficient flocculation.

PRS thickener adopts an automatic dilution system combining:

 

Natural head difference dilution

Using the density difference between incoming slurry and clarified overflow water, dilution water automatically flows into the feedwell without additional power consumption.

 

Bernoulli principle dilution

The velocity of incoming slurry generates negative pressure, drawing clarified water into the feedwell to improve mixing performance.

 

Forced dilution option

For unstable feed conditions, a submerged mixing pump can introduce clarified water into the feedwell to maintain the optimum flocculation concentration.

Benefits:

• Stable feed concentration
• Reduced flocculant consumption
• Improved settling efficiency
• Higher underflow density

 

Higher Processing Capacity

Optimized feed distribution allows higher solids loading compared with conventional thickening equipment.

 

Improved Water Recovery

Efficient settling reduces water loss and improves recycling efficiency.

 

Clearer Overflow Quality

Better flocculation and sedimentation reduce suspended solids in overflow water.

 

Lower Operating Cost

Optimized structure and automatic control reduce reagent consumption and maintenance requirements.

 

 

 

 

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