Project Background

• Material: Sea Fish Shreds (High protein, high moisture, sensitive to oxidation).

• Equipment: Multi-layer Continuous Mesh Belt Dryer.

• Heat Source: Air Energy Heat Pump System.

• Capacity: Large-scale industrial production (2–}10 tons per day).

This client, a major seafood processor, required a solution to scale up their sea fish shreds (dried fish snacks) production. The goal was to replace labor-intensive batch drying with a continuous automated system that ensures food safety and maintains the delicate “umami” flavor and white-to-golden color of the fish.

Technical Solution: Integrating Mesh Belt & Heat Pump

The synergy between continuous flow and low-temperature energy recovery is the core advantage of this Guoxin system.

A. Continuous Multi-layer Processing

• Automatic Feeding: Fresh fish shreds are evenly distributed onto the top mesh belt via a feeder.

• “S” Path Drying: The material travels through 5–7 layers of SUS304 stainless steel belts. As the shreds drop from one layer to the next, they are naturally flipped, ensuring 360-degree exposure to the airflow.

• Uniformity: This prevents “clumping” of the fish shreds, which is a common issue in traditional tray drying.

B. Heat Pump Efficiency (75% Energy Saving)

• The COP Advantage: Unlike traditional gas or coal furnaces, the air-energy heat pump absorbs $3/4$ of its thermal energy from the ambient air, requiring only $1/4$ electricity.

• Precise Temperature Control (45°C – 65°C): Sea fish proteins denature and fats oxidize if temperatures exceed $70\text{°C}$. Our heat pump maintains a stable, low-temperature drying curve that preserves the natural “fresh” appearance and prevents browning.

3. Operational Parameters & Performance

 Client Benefits & Results

1. Labor Reduction: The automated system reduced the required workforce by 60%, as manual loading/unloading of trays was eliminated.

2. Superior Quality: The fish shreds retained a consistent texture and bright color, meeting the strict standards of high-end snack markets.

3. Low Operational Cost: The heat pump’s energy efficiency allowed the client to achieve the lowest cost-per-kg in their region, significantly increasing their profit margins.

4. Food Safety Compliance: The closed internal environment protects the fish from dust, insects, and external pollutants, facilitating HACCP and FDA certification.

 FAQ

Q: Will the fish shreds stick to the mesh belt?

A: We use high-precision SUS304 stainless steel mesh with optimized tension and speed control. For particularly sticky seasoned fish shreds, we can apply a food-grade non-stick treatment to the belt surface.

Q: Can the machine handle different fish species?

A: Yes. The PLC touch-screen allows you to save “Drying Recipes” for different products (e.g., squid shreds, cod shreds, shrimp). You simply select the product on the screen to adjust the speed and temperature automatically.

Q: How do you manage the “fishy” odor in a large facility?

A: Our heat pump system can be configured with an optional deodorization and air filtration unit to ensure the factory environment remains clean and compliant with local environmental regulations.

Interested in scaling your seafood snack production?

Guoxin Group provides tailored EPC solutions, from 3D layout design to on-site installation.

[Request a Quote for Continuous Seafood Drying Lines]