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 features a drum structure that relies on the slow rotation of the drum to continuously convey the material. Wet coal is fed into the drum at a constant rate via conveying equipment. Specially designed material-lifting plates and anti-adhesion/breaking structures repeatedly lift and scatter the material, forming a uniform material curtain. The equipment operates in either co-current or counter-current heat exchange modes, allowing high-temperature hot air to come into full contact with the coal. This gradually evaporates both the free moisture within the material and the surface moisture, after which the resulting water vapor is promptly exhausted through a dust removal and exhaust system. The entire process is continuous and automated, reliably controlling the moisture content of the finished coal within the standard range.
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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