Multi-Layer Belt Type Dryer

Continuous Hot Air Drying Machine for Industrial Production

The Multi-Layer Belt Type Dryer is a continuous hot air drying system designed for efficiently drying fruits, vegetables, herbs, agricultural products, food ingredients, chemicals, and other heat-sensitive or granular materials.

Material is continuously conveyed through multiple drying layers while controlled hot air passes through the product. Drying temperature, residence time, air volume, and belt speed can be adjusted according to the characteristics of the material.

Looking for a belt dryer for your specific material? Send us your material, capacity, and required moisture content. Our engineers can recommend a suitable drying configuration.

How Does a Multi-Layer Belt Dryer Work?

The material is evenly fed onto the first conveyor belt and enters the drying chamber.

Hot air generated by the heating system circulates through the material as it passes through multiple conveyor layers. At the end of each layer, the material is transferred to the next belt, allowing the product to travel through a long drying path within a relatively compact machine.

The drying parameters can be adjusted according to the material and production requirements.

Main Process

Feeding → Multi-Layer Conveying → Hot Air Drying → Moisture Removal → Cooling / Discharge

The multi-layer design provides a long drying residence time without requiring an excessively long installation area, making it suitable for continuous industrial production.

Why Choose a Multi-Layer Belt Dryer?

Continuous Operation

Designed for continuous feeding and discharge, the belt dryer is suitable for stable, large-scale industrial production.

Adjustable Drying Conditions

Drying temperature, belt speed, air circulation and drying time can be adjusted to match different materials and moisture requirements.

Large Drying Capacity

Multiple conveyor layers provide a long effective drying path, allowing high-capacity drying within a relatively compact footprint.

Uniform Drying

Controlled hot air circulation and appropriate material distribution help achieve more consistent drying results.

Suitable for Different Materials

The drying system can be configured according to the characteristics of the material, including particle size, initial moisture, final moisture and heat sensitivity.

Custom Industrial Design

Drying area, number of layers, heating system, belt material, air circulation system and feeding/discharging configuration can be customized according to your production requirements.

Applications

The belt type dryer can be used for continuous drying of a wide range of materials.

Food & Agricultural Products

• Fruits
• Vegetables
• Mushroom
• Herbs
• Spices
• Chili
• Garlic
• Onion
• Ginger
• Tea
• Agricultural products

Food Ingredients

• Food powders and granules
• Starch products
• Grain products
• Seasoning materials
• Plant-based ingredients

Chemical & Industrial Materials

• Chemical granules
• Mineral materials
• Fertilizer
• Pharmaceutical intermediates
• Other granular or sliced materials

The actual dryer configuration depends on the material characteristics and required production capacity.

Belt Dryer for Fruits and Vegetables

The multi-layer belt dryer is widely used for drying sliced, chopped, granular or other regularly shaped food and agricultural products.

Compared with batch drying, continuous belt drying allows the material to move continuously through the drying chamber, making it easier to maintain stable production conditions.

For fruits and vegetables, the drying process can be designed according to:

• Initial moisture content
• Final moisture content
• Material thickness
• Drying temperature
• Required production capacity
• Product quality requirements

Belt Dryer for Herbs, Spices and Plant Materials

For herbs, spices and plant-based materials, drying conditions need to be carefully controlled to avoid excessive heating and uneven drying.

The drying temperature and residence time can be adjusted according to the characteristics of the material.

Our engineers can help select the appropriate:

• Number of drying layers
• Belt type
• Heating method
• Air circulation configuration
• Drying temperature
• Drying residence time

Customized Belt Dryer for Your Production Line

There is no single belt dryer configuration suitable for every material.

We design the drying system according to your actual production requirements.

We can customize:

Drying Capacity

From laboratory / small production systems to large industrial continuous drying lines.

Number of Layers

The number of conveyor layers can be selected according to required drying time and available installation space.

Heating Method

Hot air can be generated using different heating sources according to local energy costs and plant conditions.

Belt Material

Different belt materials and structures can be selected according to product characteristics and operating temperature.

Air Circulation

The air circulation system can be configured to improve drying efficiency and drying uniformity.

Feeding & Discharging

Automatic feeding and discharge systems can be integrated into the production line.

Belt Dryer Technical Parameters