Project Details
Equipment: Industrial Continuous Mesh Belt Dryer System
Material: Fresh Yam Slices
Project Location: Vietnam
Application: Continuous Dehydration, Whiteness Preservation & Automated Processing
Project Overview
DANUBE supplied a continuous industrial mesh belt drying line tailored for fresh yam slices to an agricultural processing client in Vietnam. The drying line features an integrated cutting station, an automated inclined belt conveyor with a serrated leveling device, and a high-efficiency multi-layer hot-air drying chamber.
Designed for commercial root crop and herbal processing, the system supports controlled moisture removal, uniform drying, and smooth material handling, helping the customer achieve high-capacity output while preserving the pure white color and nutritional value of fresh yam slices.
Customer’s Processing Requirements
Fresh yams have a high moisture content and rich starch level. Once sliced, yam tissue is extremely susceptible to enzymatic browning and oxidization if not dried rapidly under controlled conditions.
For commercial agricultural and herbal processors in Vietnam, key processing challenges include:
Whiteness Preservation: Yam slices require precise low-to-medium temperature control to avoid browning or scorching, ensuring high visual grade for commercial sales.
Sticky Starch & Uniform Moisture: High starch content can cause slices to stick together. Uneven heat exposure leads to outer crusting while interior moisture remains trapped.
Weather Hazards: Open-air sun drying in Vietnam’s humid tropical climate leads to high risk of mold, pest infestation, and unstable product quality.
Production Bottlenecks: Large-volume raw yam processing requires smooth coordination between slicing, loading, and drying to prevent bottlenecking.
DANUBE’s Solution: Continuous Mesh Belt Drying System
To satisfy the customer’s strict quality standards, DANUBE provided a complete, continuous drying line engineered specifically for delicate root crop slices:
1. Integrated Slicing & Automated Hopper Feeding
The processing line connects raw material preparation directly to the dryer. Fresh yams are sliced uniformly, collected in plastic crates, and transferred into a heavy-duty loading hopper.
2. Serrated Mechanical Leveler & Cleated Belt Conveyor
To prevent overlapping and sticking, the inclined conveyor uses a cleated belt equipped with a mechanical serrated leveling mechanism. This evenly distributes the yam slices into a uniform layer before entering the drying chamber.
3. Multi-Layer Hot-Air Drying Tunnel
Inside the insulated multi-layer chamber, heated airflow circulates continuously through the moving mesh belts. As slices transition gently from top to bottom layers, they tumble and turn naturally, ensuring thoroughly uniform drying across both sides.
4. Smart Multi-Zone Process Control
Temperature profiles, airflow velocity, and belt speed are fully adjustable. Gentle moisture removal retains the bright white color, natural texture, and active nutrients of the yam slices without scorching.
Project Benefits
The continuous mesh belt drying line delivers clear commercial and technical benefits:
Excellent Whiteness Retention: Controlled multi-zone heating prevents enzymatic browning and scorching, producing bright, market-ready white yam chips.
Continuous High Throughput: Replaces slow batch processes with a seamless flow from slicing to finished dry goods.
All-Weather Year-Round Production: Enclosed indoor processing shields the crops from unpredictable tropical weather and outdoor contamination.
Reduced Labor Intensity: Automated hopper feeding and mechanical leveling eliminate manual spreading work.
Consistent Target Moisture: Precise controls ensure uniform final moisture levels for reliable packaging and extended shelf life.
About DANUBE
DANUBE specializes in industrial drying, frying equipment, and integrated food processing lines, serving customers in more than 130 countries and regions worldwide. We provide EPC project support from process planning and equipment manufacturing to installation and commissioning.
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