Mesh Belt Dryer
Multi-Layer Continuous Conveyor Hot Air Drying Machine for Food, Agricultural & Industrial Materials
Mesh Belt Dryer is a fully automatic continuous through-flow hot air drying equipment different from traditional rotary dryers. It adopts multi-layer stainless steel mesh belt conveyor structure and up-down penetrating hot air circulation technology. With adjustable belt speed and precise multi-stage temperature control, it realizes uninterrupted feeding, drying and discharging. It perfectly solves the problems of material deformation, color fading, nutrition loss and uneven drying, widely used for fruits, vegetables, herbs, grains, chemical granules and light industrial materials.
Uniform Drying
Food-Grade
Safe Hygienic
What is Mesh Belt Dryer?
Most traditional drying equipment adopts batch static drying or single-layer flipping drying, which cannot meet large-scale continuous production demands. For food, agricultural and special industrial materials, high-temperature rapid drying will cause surface crusting, internal wet core, color deterioration and active ingredient loss, while intermittent feeding leads to unstable batch quality and low production efficiency.
Our Mesh Belt Dryer is professionally designed for continuous assembly-line drying scenarios. The materials are evenly spread on the stainless steel mesh belt and transported slowly through the sealed drying chamber. Hot air penetrates the material layer vertically from top to bottom or bottom to top, realizing uniform heat and mass exchange. Each drying section adopts independent temperature and humidity control, which can precisely adapt to different material characteristics. It is the preferred equipment for standardized, large-scale and high-quality drying production in food, agriculture, chemical and mineral industries.
Contents
Complete Equipment Composition of Mesh Belt Dryer
1. Multi-Layer Stainless Steel Mesh Belt Conveyor System
Adopts food-grade 304 stainless steel mesh belt, anti-corrosion, high-temperature resistant and easy to clean. Optional 2-5 layer circulating mesh belt structure greatly saves workshop floor space and extends material drying time. The variable-frequency driving system realizes stepless speed regulation, which can flexibly adjust material running speed according to raw material moisture, thickness and drying requirements, ensuring consistent drying time for each batch of materials.
2. Vertical Penetrating Hot Air Circulation Drying System
Different from traditional side-blowing hot air, this machine uses vertical penetrating air flow. Hot air uniformly passes through the mesh belt and material layers up and down, without drying dead zones. Each drying unit is equipped with independent hot air circulation fans to form a stable internal hot air loop. The heat exchange efficiency is greatly improved, ensuring uniform drying of material surface and interior, effectively avoiding crusting and wet core problems.
3. Zoned Independent Constant Temperature Control System
The drying chamber is divided into multiple independent temperature zones including preheating zone, constant temperature drying zone and cooling shaping zone. Each zone supports independent temperature parameter setting, which can simulate natural slow drying process. It precisely meets the low-temperature drying requirements of heat-sensitive materials such as fruits and herbs, maximally retaining material color, fragrance, nutrients and active ingredients.
4. Intelligent Humidity Exhaust & Waste Heat Recovery System
Equipped with automatic humidity detection and exhaust device. When the internal humidity exceeds the standard, the dehumidification fan automatically starts to discharge water vapor, while retaining effective heat. The built-in waste heat circulation device recycles residual hot air for secondary utilization, effectively reducing heat loss and improving overall energy efficiency. It achieves low energy consumption and stable drying environment.
5. Fully Sealed Insulation Drying Chamber
The whole machine adopts thickened thermal insulation layer and fully sealed box structure, with low heat loss and stable internal temperature. It effectively isolates external dust and impurities, ensuring clean and hygienic drying environment, fully meeting food-grade production standards. The modular box design supports free splicing of length and layers to customize production capacity.
6. PLC Intelligent Automatic Control System
Presets professional drying parameter programs for fruits, vegetables, herbs, grains and industrial granules. It intelligently controls belt speed, zone temperature, air volume and dehumidification frequency. Equipped with over-temperature protection, overload alarm and automatic shutdown functions, it supports 24-hour uninterrupted continuous production with unattended operation, stable and simple operation.
Core Product Advantages of Mesh Belt Dryer
1. Continuous Assembly Line Production, Ultra-High Output
Realizes fully automatic continuous feeding, drying and discharging, no need for manual batch turnover. The multi-layer compact structure greatly improves unit space output. Compared with intermittent drying equipment, the production efficiency is increased by more than 60%, which is very suitable for large-scale standardized industrial production lines.
2. Vertical Penetrating Hot Air, Uniform Drying Without Dead Zones
Vertical through-flow hot air technology ensures every material particle is evenly heated inside and outside. No surface overheating, no internal wet core, thoroughly solving the common problems of uneven drying of traditional equipment. The finished materials have consistent moisture, stable quality and no batch difference.
3. Low-Temp Gentle Drying, Keep Original Material Quality
Support multi-stage low-temperature gradient drying (30-120℃ adjustable). For heat-sensitive materials such as fruits, vegetables and Chinese medicinal herbs, it retains original color, luster, nutritional ingredients and active substances without fading, scorching or deterioration. The finished products have better appearance and higher market value.
4. Food-Grade Material, Safe & Hygienic
All contact parts adopt 304 stainless steel, which is rust-proof, high-temperature resistant and easy to clean. The fully sealed dust-free structure avoids secondary pollution. It fully complies with food safety production standards and industrial environmental protection requirements, suitable for high-standard food and agricultural product deep processing.
5. Strong Adaptability & Customized Structure
Support customization of 2-5 layers, machine length, mesh belt width and temperature zones. It can process strip, flake, granular and block materials, covering food, agriculture, medicine, chemical industry and light industry. One machine with multiple functions meets diversified drying process requirements of different materials.
6. Energy-Saving & Stable Operation
Independent circulating hot air + waste heat recovery system reduces heat loss, with comprehensive energy-saving rate up to 35%. The modular structure is sturdy and durable with low failure rate. The whole machine runs stably for a long time, greatly reducing later maintenance costs and production energy consumption.
Working Principle & Production Process of Mesh Belt Dryer
Working Principle
The Mesh Belt Dryer adopts multi-layer mesh belt continuous conveying + vertical penetrating hot air circulation drying principle. Wet materials are evenly spread on the stainless steel mesh belt and transported into the sealed drying chamber at a uniform low speed. Hot air circulates vertically through the material layers from top to bottom or bottom to top, realizing full contact heat and mass transfer. Multiple independent temperature zones complete preheating, gradual dehydration and constant-temperature shaping in sequence. Water vapor is automatically discharged by the dehumidification system, while waste heat is recycled. The whole process realizes continuous, uniform and low-loss drying without damaging material texture and activity.
Standard Production Flow
Material Uniform Feeding → Mesh Belt Conveying → Preheating Moisture Removal → Multi-Zone Gradient Drying → Automatic Humidity Exhaust & Waste Heat Recycling → Constant Temperature Shaping → Automatic Continuous Discharging → Finished Product Collection & Packaging
Application Scenarios of Mesh Belt Dryer
This continuous Mesh Belt Dryer is widely used in food processing, agricultural product deep processing, medicinal material processing, chemical industry and light industry. It is suitable for continuous drying of flake, strip, granular and block materials, including fruits, vegetables, mushrooms, nuts, Chinese herbal medicines, grains, feed pellets and chemical particles. With low-temperature high-quality drying and large-scale continuous production capacity, it has become mainstream supporting equipment for standardized food and industrial drying production lines.
Core Application Fields: Food & fruit drying, vegetable dehydration, herbal medicine processing, grain and nut drying, chemical industrial material dehydration, automated production line matching
Real Project Cases of Mesh Belt Dryer
Case 1: Continuous Fruit Drying Production Line | Thailand Food Factory
Project Info: The customer needs large-scale continuous drying of mango, durian and longan. Traditional drying causes color darkening and nutrition loss. Our 3-layer mesh belt dryer adopts segmented low-temperature drying, which retains fruit color and sweetness. The automatic assembly line greatly improves output and reduces manual cost, helping customers obtain high-quality dried fruit products with competitive market price.
Case 2: Herbal Medicine Dehydration Project | Vietnam Pharmaceutical Processing Plant
Project Info: Medicinal materials require strict temperature control to retain active ingredients. We customized multi-stage temperature curve and low-speed conveying parameters. The penetrating hot air drying realizes uniform internal and external dehydration, effectively retaining medicinal activity. The fully sealed hygienic structure meets pharmaceutical production standards, achieving stable batch quality.
Case 3: Industrial Particle Continuous Drying Project | Malaysia Chemical Plant
Project Info: The customer needs continuous drying of chemical granular materials with strict moisture consistency requirements. Our mesh belt dryer realizes 24-hour uninterrupted production with precise zoned temperature control. The finished material moisture error is less than ±0.5%, completely meeting industrial fine processing standards and improving product qualification rate.
Technical Parameters of Mesh Belt Dryer
| Model | DW-5-1.2-8 | DW-5-1.2-10 | DW-5-1.6-8 | DW-5-1.6-10 | DW-5-2-8 | DW-5-2-10 | |
| Width of belt(m) | 1.2 | 1.6 | 2 | ||||
| Length of dry section(m) | 8 | 10 | 8 | 10 | 8 | 10 | |
| Thickness of raw material spreading(mm) | 10-50 | ||||||
| Operation temperature(℃) | 50-120 | ||||||
| Steam pressure(MPa) | 0.2-0.5 | ||||||
| Steam consumption(kg/h) | ≤2Kg steam/evaporating 1kg water (for vegetables and herbal pieces) | ||||||
| Drying capacity(kg water/h) | 100-250 | 120-350 | 110-320 | 140-320 | 150-450 | 200-550 | |
| Total power(kw) | 21.2 | 22.7 | |||||
| Overall dimensions | L(m) | 11 | 12.5 | 11 | 12.5 | 11 | 12.5 |
| W(m) | 1.6 | 1.6 | 2.0 | 2.0 | 2.4 | 2.4 | |
| H(m) | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | |
| Weight(kg) | 3800 | 4780 | 4400 | 5550 | 5350 | 6800 | |
| Note: Multi-layer mesh belt dryers are available in 3, 5, 7 and 9 layers. | |||||||
Get Custom Mesh Belt Dryer Solution
Our Mesh Belt Dryer breaks through the limitations of traditional intermittent drying equipment, featuring continuous assembly line operation, penetrating uniform drying, low-temperature quality retention and high automation. It provides high-efficiency, energy-saving and hygienic drying solutions for global food processing, agricultural product deep processing and industrial material drying projects, helping customers improve production efficiency and finished product market value.
Contact us now to get free material matching, parameter customization and accurate quotation!
FAQs of Mesh Belt Dryer
Q1: What materials can the mesh belt dryer process?
A: It is suitable for almost all flake, strip, granular and block materials, including fruits, vegetables, mushrooms, nuts, herbal medicines, grains, feed and industrial chemical particles. It supports customized drying processes for different materials.
Q2: Can low-temperature drying keep material color and nutrition?
A: Yes. Adopting multi-stage gradient low-temperature drying technology, avoiding high-temperature oxidation and scorching. It effectively retains the original color, flavor and active nutritional ingredients of food and medicinal materials, with better finished product appearance and quality.
Q3: Is the drying effect uniform without wet core?
A: Absolutely. Vertical up-down penetrating hot air circulation makes hot air pass through every layer of materials. No drying dead zones, solving the common problem of surface dry but internal wet of traditional dryers, ensuring uniform moisture of finished products.
Q4: Can the machine realize 24-hour continuous production?
A: Yes. Full automatic feeding, drying, dehumidification and discharging design support long-term unattended continuous operation. It is specially designed for large-scale industrial assembly line production with stable output and low failure rate.
Q5: Is the equipment easy to clean and hygienic?
A: All material contact parts are made of food-grade 304 stainless steel with smooth surface, no residue and easy washing. Fully sealed structure prevents dust pollution, fully meeting food safety and sanitary production standards.
