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1 Product Introduction
The Flotation Tailings Thickener is a highly efficient industrial solid-liquid separation equipment specifically engineered for mineral processing applications. Positioned at the final stage of the flotation circuit, this advanced machine treats large volumes of low-density slurry containing substantial amounts of water. By utilizing gravity sedimentation enhanced by chemical flocculation, the thickener rapidly concentrates fine tailings into a high-density underflow while recovering clear water as overflow. It serves as a vital component for modern mines to achieve sustainable water recycling, dry tailings stack preparation, and environmentally compliant zero-discharge operations.
2 Working Principle
The operation of the Flotation Tailings Thickener relies on the combined mechanisms of gravitational settling and optimized chemical aggregation
Flocculant Reaction: Before entering the thickener, the low-concentration tailings slurry is mixed thoroughly with a precise dosage of flocculant. The chemical polymers bind with fine suspended solid particles, rapidly gathering them into large, heavy aggregates known as flocs.
Center Well Feeding: The conditioned slurry is introduced gently into the thickener through a specially designed central feedwell. The feedwell dissipates kinetic energy and directs the slurry below the clear water zone to prevent disturbing the already settled bed.
Gravity Sedimentation: Driven by gravitational forces, the heavy flocs overcome liquid resistance and settle rapidly toward the tank bottom, creating a dense mud layer. Meanwhile, clear water separates and displaces upward.
Overflow and Underflow Discharge: The clarified water reaches the top and smoothly exits the tank via peripheral launder weirs for direct reuse in the plant. Simultaneously, a continuously rotating rake mechanism sweeps the dense mud towards the central discharge cone, where a heavy-duty underflow pump transfers it to downstream filtration or tailings storage.
3 Product Features
Superior Processing Capacity: Incorporating deep-bed principles and highly efficient flocculation kinetics, the equipment delivers significantly higher throughput per unit area compared to conventional thickening tanks.
Advanced Control Automation: Equipped with modern automated monitoring units, the system automatically regulates flocculant dosing rates, rake torque positioning, and underflow discharge speeds based on real-time feed density and flow rates.
High Underflow Concentration: Delivers a consistently dense and stable underflow product, which drastically reduces the operational load and cycle times of subsequent press filters or drying systems.
Excellent Water Recovery: Produces high-clarity overflow water that can be directly recycled into upstream flotation circuits, substantially lowering freshwater consumption and operational utility costs.
Robust and Wear-Resistant Construction: Engineered explicitly for abrasive and corrosive tailings environments, all critical wear components feature premium alloy structures or specialized protective linings, guaranteeing extended equipment lifespans and minimized maintenance requirements.
Technical Specifications
Model |
Tank Diameter (mm) |
Tank Depth (mm) |
Settling Area (m²) |
Capacity (m³/h) |
DCT-3 |
3000 |
4400 |
21 |
60–70 |
DCT-6 |
6000 |
8800 |
85 |
210–260 |
DCT-9 |
9000 |
13500 |
310 |
570–700 |
DCT-12 |
12000 |
17500 |
510 |
800–1200 |
DCT-15 |
15000 |
19000 |
1200 |
1000–1500 |
DCT-18 |
18000 |
22000 |
2000 |
1400–2100 |
DCT-20 |
20000 |
22800 |
2700 |
2100–2600 |
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