Deep Cone Thickener
Deep Cone Thickener for High Density Slurry and Paste Thickening
In mining and hydrometallurgical operations, efficient water recovery and tailings management have become increasingly important.
PRS Deep Cone Thickener is designed for applications requiring higher underflow concentration and paste-like discharge. Through a deeper thickening zone, optimized feed distribution, and enhanced compression effect, the equipment achieves higher solids concentration compared with conventional thickening systems.
The concentrated underflow can reduce water loss, decrease the volume of tailings storage, and improve the overall efficiency of downstream processes.
PRS Deep Cone Thickener Applications
- Copper mining projects
- Copper concentrate processing plants
- Hydrometallurgical plants
- Tailings treatment systems
- Mineral processing facilities
Typical applications include:
- Tailings thickening
- Backfill preparation
- Process water recovery
- High-density slurry preparation
Deep Cone Thickener vs Conventional Thickener
|
Item |
Deep Cone Thickener |
Conventional Thickener |
|
Tank depth |
Deeper compression zone |
Standard settling zone |
|
Underflow concentration |
Higher |
Lower |
|
Water recovery |
Higher |
Moderate |
|
Footprint |
Smaller for similar capacity |
Usually larger |
|
Main application |
Paste thickening and high density discharge |
General solid-liquid separation |
How Deep Cone Thickener Works
Unlike conventional thickeners, a deep cone thickener adopts a deeper tank structure to provide a longer settling and compression zone.
During operation:
- Slurry enters the feedwell through the central feeding system.
- Flocculant is mixed with slurry to promote particle aggregation.
- Solid particles settle gradually through the deep compression zone.
- The rake mechanism continuously moves settled solids toward the discharge area.
- High-density underflow is discharged from the bottom, while clarified water overflows from the upper section.
This extended compression area allows particles to release more water and form a higher concentration underflow.
High Underflow Concentration Performance
The main advantage of PRS Deep Cone Thickener is its ability to produce high-density underflow.
Compared with conventional thickening equipment, it provides:
·Higher solid concentration
·Lower water content in discharged material
·Reduced tailings transportation volume
·Improved water recycling efficiency
For suitable applications, the underflow can reach a paste-like condition, reducing the requirement for large tailings storage facilities.
Optimized Feedwell System
Stable slurry distribution is essential for achieving good settling performance.
PRS Deep Cone Thickener adopts an optimized feedwell design to improve:
Slurry Mixing
The incoming slurry and flocculant are fully mixed before entering the thickening zone.
Flow Distribution
The internal structure reduces short-circuit flow and allows slurry to spread evenly.
Floc Protection
Controlled mixing conditions reduce excessive shear force and help maintain larger flocs.
The optimized feed system contributes to clearer overflow and higher underflow density.
Structural Design of PRS Deep Cone Thickener
The equipment mainly consists of:
·Deep cone tank structure
·Bridge and support system
·Drive and lifting mechanism
·Central shaft
·Rake assembly
·Feedwell system
·Hydraulic and electrical control system
PRS designs the equipment according to:
·Feed characteristics
·Processing capacity
·Required underflow density
·Site layout conditions
Advantages of PRS Deep Cone Thickener
Higher Water Recovery
More water can be recovered from slurry, reducing fresh water consumption.
Smaller Footprint
The deep cone design provides higher thickening efficiency within a relatively compact area.
Improved Tailings Management
Higher density discharge reduces tailings volume and improves storage efficiency.
Flexible Application
Suitable for different mineral processing and hydrometallurgical conditions.
Packaging and Delivery
FAQ
Q: What is a deep cone thickener?
A: A deep cone thickener is a high-density thickening equipment designed to achieve higher underflow concentration through an extended settling and compression zone.
Q: What is the difference between a deep cone thickener and a high rate thickener?
A: A high rate thickener focuses on high processing capacity, while a deep cone thickener focuses on producing higher density underflow and paste-like discharge.
Q: What underflow concentration can a deep cone thickener achieve?
A: The final concentration depends on slurry characteristics, particle size, mineral properties, and operating conditions. PRS designs equipment according to specific project requirements.
Q: Can deep cone thickeners be used for copper tailings?
A: Yes. Deep cone thickeners are commonly used in mining and copper processing projects for tailings thickening and water recovery.
Q: Does PRS provide customized thickener solutions?
A: Yes. PRS provides customized designs based on processing capacity, slurry properties, layout requirements, and project conditions.
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