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NT type peripheral rack and pinion drive thickener
I. Product Overview
NT type peripheral rack and pinion drive thickener is a high-efficiency thickener specially designed for large processing capacity and low concentration working condition. It adopts the innovative rack-and-pinion transmission system, featuring high torque, low energy consumption and stable operation. With a diameter ranging from 15 to 53 meters, it is widely used in solid-liquid separation operations in coal, chemical, building materials and sewage treatment industries.
Core Advantages
1. High-efficiency transmission system
Double rack and pinion drive design: transmission efficiency is 25% higher than the traditional structure.
Large torque output: 30% increase in processing capacity under the same power.
Overload protection device: automatic shutdown protection to avoid damage to the equipment
2. Structural design highlights
| Components | Technical Features | Advantages |
|---|---|---|
| Central column | Reinforced concrete structure | High load bearing capacity and long life |
| Truss system | High strength steel design | Excellent deformation resistance |
| Feeding System | Multi-stage diversion tank | Uniform material distribution, good settling effect |
3. Intelligent control system
Frequency conversion speed control
Remote monitoring interface
Automatic fault diagnosis
Working Principle
Feeding stage: the slurry is evenly distributed through the feeding trough on the truss.
Sedimentation and concentration: solid particles are settled under the effect of gravity.
Aggregate discharge: the rake blade pushes the concentrated material to the central discharge port.
Clear water overflow: the clarified liquid is discharged from the peripheral overflow weir.
Fourth, the application field
1. Coal industry
Thickening of coal slurry water (treatment capacity increased by 40%)
Coal washing wastewater purification
2. Mineral processing industry
Tailings concentration (bottom stream concentration ≥65%)
Concentrate dewatering
3. environmental protection engineering
Industrial wastewater treatment
Municipal sludge thickening
V. Selection Guide
1. Mineral processing plant
Daily processing capacity ≤ 500t: NT-15
Daily processing capacity 500-1500t:NT-18~NT-24
Daily processing capacity ≥ 1500t: NT-30 and above.
2. Key Selection Factors
Material characteristics (specific gravity, particle size)
Target bottom stream concentration
Site condition limitation
Installation and maintenance
1. Installation points
Track installation level ≤ 2mm/m
Rack engagement gap 3-5mm
Verticality of center column ≤ 1/1000
2. Maintenance
Daily inspection:
Daily check of rack lubrication
Weekly cleaning of track debris
Regular maintenance:
Check gear wear quarterly
Annual replacement of reducer lubricant
VII. Technical Parameters
| Model | Diameter(m) | Depth(m) | Capacity(t/d) | Motor power(kW) | Weight(t) | Applicable Scene |
|---|---|---|---|---|---|---|
| NT-15 | 15 | 3.5 | 87-390 | 5.5 | 11.7 | Small and medium-sized processing plants |
| NT-18 | 18 | 3.5 | 560 | 5.5 | 12.1 | Coal washing plant |
| NT-24 | 24 | 3.4 | 1,000 | 7.5 | 28.3 | Non-ferrous metal ores |
| NT-30 | 30 | 3.94 | 1,560 | 7.5 | 31.0 | Large Iron Ore |
| NT-45 | 45 | 5.06 | 2,400 | 11 | 58.0 | Very Large Tailings Disposal |
| NT-53 | 53 | 5.07 | 3,000 | 11 | 69.4 | Ultra Large Scale Project |
VIII. Service Support
Process design: free program consultation
Installation guidance: professional engineers on-site service
Spare parts supply: key components of the transmission system are always available.
Upgrading: Conventional thickener drive system modification
NT type peripheral rack and pinion drive thickener has become an important thickening equipment in modern mineral processing and environmental protection engineering by virtue of its advantages of large processing capacity, low energy consumption and high reliability. We can provide customized solutions according to your specific needs.

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