Coal Rotary Dryer
High drying efficiency
uniform heating of materials, and rapid dehydration
Energy-efficient and low-consumption
with high thermal utilization and lower operating costs
High adaptability
capable of drying various coal materials such as raw coal, coal slurry, and coal gangue
Wear-resistant and corrosion-resistant
with a sturdy and durable body and a long service life
Large processing capacity
supporting continuous operation
Stable operation
low failure rate, and simple daily maintenance
Product Overview
The Coal Rotary Dryer is a large-scale drying system specifically designed for high-moisture coal-based materials. It combines proven rotary drum technology with optimized heat exchange techniques to address the challenges associated with raw coal, coal slurry, lignite, and coal gangue. It is widely applicable in industrial settings such as coal mines, coal washing plants, power plants, and coal chemical plants, serving as the core equipment for moisture reduction, quality improvement, and resource utilization of coal materials.
Working Principle
The Coal Rotary Dryer adopts a rotating drum structure that enables continuous and efficient material conveying during operation. Wet coal is evenly fed into the drum at a controlled rate through the feeding system. Inside the drum, specially designed lifting plates and anti-adhesion structures continuously lift, disperse, and tumble the coal, creating a uniform material curtain that maximizes contact between the material and hot air.
The dryer supports both co-current and counter-current drying modes, allowing high-temperature hot air to fully penetrate the coal layer and efficiently remove moisture. During the drying process, free moisture and surface moisture within the coal are gradually evaporated, while the generated water vapor is quickly discharged through an integrated dust collection and exhaust system.
With a continuous and automated operating process, the Coal Rotary Dryer ensures stable drying performance, improves heat utilization efficiency, and accurately controls the final moisture content of coal to meet different production requirements. Its reliable design makes it an ideal solution for large-scale coal drying applications.
Structure & Material
Main Material: High-quality carbon steel or stainless steel
Drum Diameter: Customizable
Drum Length: Customizable
Heating Method: Coal, natural gas, wood, or biomass pellets
Drive System: Gear reducer + motor drive
Technical Parameters
Processing capacity: 1–100 tons per hour (customizable)
Drying temperature: 100–1000°C (adjustable)
Drying efficiency: Moisture removal rate of up to 80% or higher
Technical Specifications
| Model | Evaporation Capacity (t/h) | Drive Power (kW) | Fan Power (kW) | Air-lock Discharger (mm/kW) | Remarks |
1.2×12 | 0.25-0.45 | 5.5 | 11 | 300/1.5 | Parameters may vary based on material properties |
1.5×15 | 0.5-0.7 | 11 | 15 | 400/2.2 | |
1.8×18 | 1.0-1.5 | 15 | 22 | 500/3 | |
2.2×24 | 2.5-3.5 | 22 | 37 | 600/4 | |
2.5×24 | 2.5-4.7 | 22 | 45 | 600/4 | |
3.0×30 | 5.0-6.0 | 37 | 75 | 700/5.5 or larger | |
3.5×30 | 6.5-8.0 | 45 | 90 | 700/5.5 or larger |
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