On September 24, 2026, Guoxin Group commissioned an industrial multi-layer continuous mesh-belt mushroom drying line in Huairou District, Beijing—a major mountainous hub for wild and cultivated edible fungi. Engineered specifically for wild hazel mushrooms (Armillaria mellea), this automated system replaces weather-dependent open-air drying with gentle, multi-zone thermal dehydration that protects delicate mushroom caps while preserving full flavor profiles.

1. Project Specifications Matrix

2. Technical Challenges & Engineering Solutions

• Mushroom Cap Protection & Form Retention: Fresh hazel mushrooms feature tender caps that easily detach or break under rough physical handling. The Guoxin multi-tier belt mechanism uses low-velocity horizontal conveyance with gentle drop transitions between tiers to maintain complete mushroom morphology.
• Automated Material Leveling: Dense clumping traps moisture and leads to uneven drying. An inclined cleated elevator feeds raw mushrooms past an oscillating sawtooth spreader, automatically distributing an even layer across the entire belt width.
• Aroma & Flavor Locking: Volatile aromatic compounds in wild mushrooms degrade under intense, rapid heat. A multi-stage temperature curve (45°C to 65°C) initiates low-temperature moisture removal before stepping up heat, locking in natural rich umami aromas and deep color.

3. Step-by-Step Processing Flow

1. Intake & Automated Feeding: Workers unload raw hazel mushrooms into the ground-level hopper.

2. Elevated Spreading: An inclined belt carries mushrooms upward through a motorized sawtooth rake, leveling the product bed to an optimal airflow depth.

3. Multi-Zone Convective Drying: Mushrooms travel through insulated SUS304 chamber modules. Circulating hot air penetrates through perforated mesh belts from top and bottom, extracting humidity continuously.

4. Discharge & Quality Check: Crisp, dried hazel mushrooms exit smoothly via an inclined discharge conveyor directly into plastic crates, completely free of scorched edges or broken caps.

FAQ

Q1: Why is a continuous mesh-belt dryer superior to traditional tray-drying rooms for mushrooms?

A: Mesh-belt dryers eliminate labor-intensive tray loading, turning, and rack pushing. Continuous movement provides identical heat exposure across every mushroom, preventing localized scorching and reducing labor costs by over 60%.

Q2: What heating sources can power the Guoxin mushroom drying line?

A: The line can be integrated with Air-Source Heat Pumps (maximum electrical efficiency), Clean Natural Gas Burners, Steam Exchangers, or Biomass Furnaces, depending on local environmental regulations and fuel availability.

Q3: Can this dryer line process other edible mushroom species?

A: Yes. By adjusting the PLC belt speed and temperature program, the same drying line processes shiitake, black wood ear, morels, porcini, and tea tree mushrooms with zero mechanical modifications required.