NG type peripheral roller drive thickener overview
NG peripheral roller drive thickener is a kind of high-efficiency, large-scale thickening equipment specially designed for large-scale industrialized solid-liquid separation needs. It adopts a unique roller peripheral drive structure to drive the rake frame to rotate around the center of the large concrete tank to realize the thickening and clarification of sludge or slurry.
The equipment is well known for its huge processing capacity, high operational stability, safe and reliable overload protection and low maintenance cost. Its diameter range extends from 15 meters to 53 meters, which makes it an ideal choice for large flow conditions, such as tailings treatment in large mineral processing plants, thickening of coal slurry water in large coal washing plants, as well as municipal and industrial wastewater treatment.
Core Advantages of NG Peripheral Roller Drive Thickener
| Innovative transmission system |
Structural design and electrical system |
| ✅ Roller peripheral drive: driven by friction rollers, it can automatically slip when overloaded, realizing ontological protection of the equipment, without additional complicated safety devices, safe and reliable. |
✅ Durable: usually adopts large diameter concrete pool body, service life can reach more than 20 years; reinforced rake frame structure with strong deformation resistance. |
| ✅ High efficiency and energy saving: low friction design makes the running resistance small, energy consumption is 20-30% lower than the traditional rack and pinion transmission structure. |
✅ Intelligent control: adopts frequency conversion speed control system, which can flexibly adjust the speed of harrow frame to adapt to different working conditions; integrated overload protection function. |
| ✅ Modularized drive unit: the whole set of transmission device modular design, easy maintenance, quick replacement, greatly shorten the downtime. |
✅ Stable power supply: Adopting center column ring contact and sliding collector to provide continuous and stable power to the rotating equipment. |
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✅ SAFE CABLE MANAGEMENT: The cable is specially laid along the rake frame, which is safe and durable with anti-tangling and corrosion-resistant characteristics. |
NG type peripheral roller drive thickener main technical parameters table
| Model |
Diameter (m) |
Depth (m) |
Processing capacity (t/d) |
Power of driving motor (kW) |
Weight (kg) |
Applicable Scene |
| NG-15 |
15 |
3.5 |
390 |
5.5 |
9,120 |
Medium-sized concentrator |
| NG-18 |
18 |
3.5 |
560 |
5.5 |
10,564 |
Large Coal Preparation Plant |
| NG-24 |
24 |
3.4 |
1,000 |
7.5 |
24,000 |
Non-ferrous metal ore |
| NG-30 |
30 |
3.94 |
1,560 |
7.5 |
26,420 |
Large Iron Ore |
| NG-45 |
45 |
5.06 |
2,400 |
11 |
50,640 |
Very Large Beneficiation Plant |
| NG-53 |
53 |
5.07 |
3,000 |
11 |
60,910 |
Ultra Large Scale Tailings Treatment |
Note: Treatment capacity varies depending on the nature of the material (specific gravity, particle size, concentration) and process requirements, the table is a typical reference value. As the size increases, the capacity increases significantly.
Application Areas
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Mineral processing industry:
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Concentration of concentrate and dewatering of tailings in large-scale copper, iron ore and gold mines.
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Pre-treatment and concentration of tailing pond water return system, significantly increase the rate of water return.
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Purification treatment and reuse of mineral processing wastewater.
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Coal industry:
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Concentration and recovery of coal slurry water in large-scale coal washing plant.
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Treatment of coal chemical waste water.
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Clarification and reuse of mine water.
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Environmental protection engineering:
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Sludge thickening of large industrial sewage treatment plants.
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Expansion or upgrading of municipal sewage plants.
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Sludge dewatering pretreatment for river and lake dredging project.
Selection guide
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Daily processing capacity ≤ 1000 tons: NG-15 to NG-18 are recommended.
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Daily processing capacity 1000-3000 tons: NG-24 to NG-30 are recommended.
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Daily processing capacity ≥ 3000 tons: NG-45 to NG-53 are recommended (super large-scale projects).
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Key Selection Factors: Material characteristics (particle size, specific gravity, concentration), capacity requirements, site conditions, and automation needs should be considered.
Installation and Maintenance Points
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Installation foundation: Concrete pool body must have enough maintenance period ( ≥28 days ) to ensure strength.
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Installation precision: the deviation of the level of the peripheral track should be ≤3mm, and the contact area between the roller and the track should be ≥80%, which is the key to ensure smooth operation.
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Daily maintenance:
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Check the wear and tear of the rollers daily.
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Clean the debris on the track every week.
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Check the cable wear situation every month.
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Replace the reducer lubricant every year.
Service Support
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Professional team: provide on-site installation guidance and commissioning services.
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Technical training: provide customers with comprehensive operation and maintenance training free of charge.
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Spare parts supply: Standing stock of drive units and other key components to ensure quick response.
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Retrofitting and upgrading: We can provide transmission system retrofitting service for traditional thickener.
The NG peripheral roller drive thickener is the main flagship equipment for handling large-scale, high-flow solid-liquid separation tasks. Its innovative roller drive mechanism provides unrivaled overload safety and energy efficiency, while the rugged construction design ensures long life and low maintenance in harsh industrial environments. For any project with large-scale thickening needs, the NG thickener represents a reliable, efficient and advanced technology choice, and is a key piece of equipment for guaranteeing continuous and stable production and achieving environmental goals.
