aggregate dryer
The Best Choices for Your Project
Provide you with aggregate drying solutions
- Production capacity: 1-30T/H.
- Customizable diameter from 80cm to 3600cm.
- Dryer length: 8 meters to 36 meters.
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Aggregate Dryer supplier
Aggregate Dryer machine
What is an Aggregate Dryer?
An aggregate dryer, commonly referred to as a rotary drum dryer, is an industrial device designed for drying granular materials efficiently. The machine typically consists of a rotating drum, a feeding system, a heating source, and a discharging system. During operation, wet granules are fed into the drum, where they are heated and dried while tumbling inside the rotating cylinder. The rotation ensures uniform drying and prevents material sticking or clumping.
What Types of Granules Can an Aggregate Dryer Dry?
Aggregate dryers are versatile and can handle a wide range of materials, including:
Sand and gravel
Limestone and dolomite
Fertilizers (NPK, urea, compound fertilizers)
Coal and other mineral powders
Biomass pellets and sawdust
The dryer is suitable for both natural and industrial granular materials that need moisture reduction before further processing or packaging.
Moisture Change Process During Drying
During the drying process, granules undergo several stages:
Initial Stage: Surface water evaporates quickly due to direct contact with hot air.
Constant Rate Stage: Moisture inside the granules migrates to the surface and evaporates at a steady rate.
Falling Rate Stage: Only bound water remains; evaporation slows down until the granules reach the target moisture content.
This staged drying ensures the final product is uniformly dry without damage.
Applications of Dried Granules
Once dried, granules can be used in:
Construction materials (concrete, asphalt, cement)
Fertilizer production
Energy production (biomass pellets)
Chemical and mineral industries
Drying improves storage stability, reduces transportation costs, and enhances product quality.
Working Principle of an Aggregate Dryer
The aggregate dryer works on a simple yet effective principle:
Wet granules enter the rotating drum.
Hot air (from gas, diesel, or steam sources) passes through the drum.
The rotation and internal lifters lift and drop the granules, exposing them evenly to hot air.
Moisture evaporates and is discharged along with the exhaust air.
Features and Advantages of Aggregate Dryer
High efficiency: Continuous drying with large throughput.
Uniform drying: Rotation ensures even heat exposure.
Flexible design: Can handle different materials and particle sizes.
Energy-saving: Optimized airflow and insulation reduce fuel consumption.
Durable: Heavy-duty steel drum ensures long service life.
Heat Source Options for Aggregate Dryer
Aggregate dryers can use multiple heat sources:
Natural gas or LPG: Efficient and clean.
Diesel or heavy oil: Suitable for areas without gas pipelines.
Coal or biomass: Cost-effective for bulk operations.
Steam or electricity: Used in specific industrial processes requiring precise temperature control.
How Customers Choose an Aggregate Dryer
Factors to consider include:
Type of material and particle size
Required drying capacity
Final moisture content target
Available heat source
Installation space and operational budget
Consulting with manufacturers can help select the right model for your specific needs.
Models and Specifications of Aggregate Dryer
| Model | Drum Diameter (m) | Drum Length (m) | Capacity (t/h) | Power (kW) | Applicable Material |
|---|---|---|---|---|---|
| AD-1 | 1.2 | 8 | 2–5 | 15 | Fertilizer, Sand |
| AD-2 | 1.5 | 10 | 5–10 | 22 | Mineral, Coal |
| AD-3 | 2.0 | 12 | 10–20 | 37 | Sand, Limestone |
| AD-4 | 2.5 | 15 | 20–40 | 55 | Biomass, Fertilizer |
We also support customized aggregate dryers based on your material and production requirements.
Models and Specifications of Aggregate Dryer
Factors to consider include:
Type of material and particle size
Required drying capacity
Final moisture content target
Available heat source
Installation space and operational budget
Consulting with manufacturers can help select the right model for your specific needs.
Aggregate Dryer Services
We provide comprehensive services for our aggregate dryers, ensuring your production runs smoothly from start to finish:
Pre-sale Consultation and Selection: Our engineers analyze your material type, particle size, required drying capacity, and available heat source to recommend the optimal dryer model.
Custom Design and Manufacturing: We can customize drum length, diameter, lifting plates, and heat source type to meet unique production requirements.
Installation and Commissioning: Professional technicians ensure proper installation, alignment, and safe start-up, so your dryer operates efficiently from day one.
Training and Support: We offer on-site training for operators, including maintenance tips, safety guidelines, and troubleshooting techniques.
After-sales Service: Long-term support includes regular maintenance, spare parts supply, and technical upgrades to extend the machine’s service life.
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