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ENPROTEC’s Dual WellTM Thickener Technologies

Experience the difference with our advanced Dual WellTM thickener technologies. From increased efficiency to cost-savings and environmental benefits, our technologies are designed to drive your success.

  • Overview

ENPROTEC’s Dual WellTM Thickener Technologies

Our Dual WellTM thickeners consists of our cutting-edge thickener feed system designed to maximise flocculation efficiency and enhance settling performance. Featuring a primary energy dissipation well and a secondary optimised flocculation well, it ensures superior slurry conditioning and uniform distribution within our thickeners. This advanced design minimises turbulence, prevents shear degradation of flocculants, and eliminates short-circuiting, resulting in higher underflow densities, improved water recovery, and a reduced thickener footprint. Our Dual WellTM Thickeners enhance process stability, optimises reagent consumption, and significantly lowers operational costs in mineral processing.

Conventional Thickeners

Designed for reliable solid-liquid separation, our Conventional Thickeners incorporate a high-efficiency feedwell system that promotes uniform slurry distribution. With optimised underflow density and improved overflow clarity, our Conventional Thickeners are well- suited for high-capacity applications in tailings and concentrate dewatering.

High-rate Thickeners

Our High-rate Thickeners utilise an advanced feedwell technology to improve flocculant mixing, reduce turbulence, and accelerate settling rates. This allows for a smaller thickener footprint, enhanced water recovery, and lower reagent consumption, making our High-rate Thickeners ideal for high-throughput operations.

Paste Thickeners

Engineered for high-density underflow, our Paste Thickeners produce a non-segregating, pumpable paste for tailings disposal or underground backfill. Our highly efficient raking design includes pickets that allows interstitial “trapped” water, present in the thickener bed to be released, increasing the underflow density to a paste.

CCD Thickeners

Our Counter-current Decantation (CCD) Thickeners maximise metal recovery and washing efficiency. Designed for multi-stage leaching circuits, our Counter-current Decantation enhance solution recovery, minimise soluble losses, and improve overflow clarity in hydrometallurgical applications.

Features & Benefits

  • Robust design
  • Operational reliability
  • Versatility and adaptability
  • Improved process efficiency
  • Environmental sustainability

Key Outcomes

  • Effective feed well design
  • Enhanced flocculation and thickening
  • Advanced control systems
  • Improved scraping mechanism
  • Optimal solid-liquid separation

ENPROTEC Thickener Range Capability

Our thickener technologies’ sizes range from 6m in diameter to 100m in diameter, utilising a hydraulic central planetary drive mechanism. The hydraulic drive reduces loads at start-up, minimising wear on gearboxes and extending the drive’s service life (L10 > 100 000 hours).

Technically Engineered

Innovative Dual WellTM Feedwell Design

ENPROTEC utilises advanced CFD modelling to optimise our thickeners’ performance, ensuring efficient slurry distribution and improved settling. Our innovative Dual Well™ feedwell design enhances shear conditions and flocculation, reducing short-circuiting and improving overflow clarity. By leveraging CFD simulations, we refine feedwell geometry to maximise efficiency and process stability, delivering superior operational outcomes for our clients. This cutting-edge approach underscores our commitment to innovation in solid-liquid separation technology.

The feedwell is crucial for effective flocculation and even slurry distribution into the thickener. At ENPROTEC, we utilise advanced feedwell designs that promote optimal mixing and agglomeration of particles. Our trademarked designs ensure that the slurry is evenly distributed, minimising turbulence and promoting the formation of large, stable, agglomerated particles. The result is improved settling rates and higher underflow densities. By optimising the flocculant dosing and distribution, we enhance the overall efficiency of the thickening process.

The design and material of the thickener tank, as well as the rake mechanism, are essential for durability and performance. ENPROTEC uses robust construction materials such as high-strength steel and specialised coatings that resist abrasion and corrosion. Our tank designs feature optimised geometries that enhance the settling process, while our rake mechanisms are engineered to provide consistent and efficient solids removal. The rake arms are equipped with torque monitoring and adjustable speed controls to ensure reliable operation and prevent overloading. Our thickeners make use of bolted tank designs that result in ease of installation and ensure tank failures are minimised. This is achieved due to welding and coating, which are done in a controlled environment within a world class manufacturing facility.

Modern thickeners at ENPROTEC are equipped with advanced automation and control systems to optimise performance. These systems use PLC (Programmable Logic Controller) technology to automate key processes such as flocculant addition, rake speed adjustment, feed solids concentration, and underflow density control. Real-time monitoring of parameters like bed level, solids concentration, and torque enables dynamic adjustments to maintain optimal thickening conditions. Features such as remote monitoring and data logging provide valuable insights for continuous improvement and operational efficiency.

Efficient management of both the underflow and overflow streams is critical for maximising the thickener’s performance. ENPROTEC’s thickeners incorporate advanced underflow pumping systems that ensure consistent, high-density underflow discharge. Our overflow management systems are designed to minimise the carryover of suspended solids, enhancing the clarity of the overflow water.

ENPROTEC’s innovative Feed Dilution technology enhances thickener performance by optimizing feed density, improving flocculation efficiency, and eliminating hindered settling within the feedwell, which promotes effective settling within the thickener. By precisely controlling the feedwell environment, our solution reduces shear, enhances settling rates, and minimizes overflow turbidity. This results in lower reagent consumption, increased throughput, and improved water recovery—key for sustainable operations.

The ENPROTEC flocculant make up and dosing plant allows adequate hydration, precise mixing and dosing of flocculants at various dosing points, ensuring optimal particle agglomeration. This enables and improves settling rates and enhances the thickening process.

Our equipment enhances tailings management by producing a denser underflow, minimising water losses, and pre-densifying filter feed slurry, resulting in optimised downstream processes and reduced environmental impact.

We offer precise control over the concentration of solids in the feed stream to ensure hindered settling within the feed well is minimised. We also utilise instrumentation to control the thickener underflow solids concentration. Incorporating effective feed dilution is crucial in ensuring the optimised settling performance of this technology. Further, through the use of a continuous underflow density monitoring system, better management of downstream processes, clarified overflow, reduced water losses and improved overall efficiency of the minerals processing plant is achieved.

Dual WellTM Thickeners

Further Enhance your Operations
with our Technology

Flocculant Selection & Dosage

Proper selection and dosage of flocculants are crucial for forming optimal agglomerated solids, enhancing settling rates, and achieving clear overflow.

Feed WellTM Design

Our effective feedwell design minimises turbulence, maximises flocculation and reduces hindered settling, improving the overall performance of the thickener.

Rake Mechanism Design

The design and operation of the rake mechanism are critical for efficient solid removal without disturbing the settled bed.

Instrumentation and Control

Advanced instrumentation and control systems enable precise monitoring and adjustment of operating parameters, ensuring consistent and efficient thickener performance.

Creating Better, Greener Mineral Processing

If you’re committed to establish a better, greener mineral processing plant for tomorrow, we at ENPROTEC can help you start today, through equipment and technology that was purposefully engineered to do exactly that.

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