Thickener

The thickener is gravity sedimentation equipment for slurry concentration and wastewater clarification in mineral processing. It separates solids and water via natural settlement, obtains dense underflow and clean recycled overflow water to save mine water consumption.
  • Suitable for: Concentrate dewatering, tailings clarification, slurry thickening in mining, metallurgy and coal washing plants.
  • High Sedimentation Efficiency
  • High-Quality Recycled Water
  • Durable & Low Maintenance
  • Wide Applicability & Energy Saving

We always focus on optimizing user experience of our products.

1.High Sedimentation Efficiency

Optimized feeding structure accelerates solid settlement, greatly improves underflow concentration for stable dewatering output.

2.High-Quality Recycled Water

Clear overflow with low solid content can be reused in grinding and flotation procedures, cutting water expenditure effectively.

3.Durable & Low Maintenance

Wear-resistant rake arms and anti-corrosion tank design run slowly with little abrasion, lowering breakdown frequency and service cost.

4.Wide Applicability & Energy Saving

Suitable for gold, copper, iron ore and tailings treatment; low-power drive reduces power consumption to meet environmental standards.

 

Working Principle

 

The core principle of a high-efficiency thickener is the combination of gravity settling and flocculation technology. An appropriate amount of flocculant is added to the slurry to be treated, causing fine particles to aggregate into large, dense flocs, significantly accelerating the settling speed. The slurry enters the thickening tank deep through the central feed cylinder, where it diffuses horizontally under the action of a flow stabilizing device (such as a refractive plate), reducing disturbance, and enters the already formed high-concentration sludge layer (i.e., the “sludge bed”). This layer acts as a filter, further intercepting fine particles. Clarified water is discharged from the upper overflow weir, while the concentrated underflow is collected by a sludge scraper and discharged through the central discharge port.

Some models are also equipped with a deaeration tank to pre-remove air bubbles from the slurry, preventing air bubbles from adhering to particles and affecting the settling effect.

 

Product Structure

 

The high-efficiency thickener mainly consists of the following parts:

Thickening Tank: A circular tank with a gently conical or deep conical bottom for material settling.

Feeding Device: Includes a central feed cylinder, defoamer, and static mixer, enabling deep and stable feeding.

Flocculation System: Automatically adds flocculant and ensures uniform dispersion through the static mixer.

Drive and Sludge Scraping System: A motor-driven rake frame slowly rotates, scraping the settled material towards the central discharge port.

Rake Lifting Device: A hydraulic or mechanical automatic lifting system to prevent overload and rake compression.

Automatic Control System: A PLC controls reagent addition, underflow concentration, overflow quality, and fault alarms, supporting remote monitoring.

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Technical Parameters

Model Transmission form Concentration tank Capacity (t/d) Motor Weight (kg)
Diameter (m) Depth (m) Power (kw)
NZS-1 Centre drive 1.8 1.8 5.6 1.1 1300
NZS-3 Centre drive 3.6 1.8 22.4 1.1 2975
NZS-6 Centre drive 6 3 62 3 8700
NZS-9 Centre drive 9 3 140 3 16682
NZS-12 Centre drive 12 3.5 250 3 33131
NG-15 Rollers 15 3.5 390 5.5 9120
NG-18 Rollers 18 3.5 560 5.5 10000
NG-24 Rollers 24 3.7 1000 7.5 24000
NG-30 Rollers 30 3.6 1570 7.5 26420
NT-15 Rack gear 15 3.5 390 5.5 11000
NT-18 Rack gear 18 3.5 560 5.5 12120
NT-24 Rack gear 24 3.7 1000 7.5 28270
NT-30 Rack gear 30 3.6 1570 7.5 30888
NT-45 Rack gear 45 5.1 2400 11 58640
NT-50 Rack gear 50 4.5 3000 11 65920
NT-53 Rack gear 53 5.1 3400 11 69410

HOT PRODUCTS

Driven by an unwavering pursuit of quality, we devote meticulous attention to every structural and functional detail of our mining machinery. Advanced manufacturing standards, precise machining, and strict quality testing ensure every piece of equipment withstands harsh underground and open-pit mining environments. We deliver sturdy, high-efficiency mining equipment with consistent performance for global mineral processing projects. Details define quality; quality guarantees long-term value for all mining partners worldwide.

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