Outstanding features of IQF – Tan Long conveyor belts

. IQF conveyor belts play an important role in quickly and uniformly cooling food products such as vegetables, fruits, meat and seafood. With flexibility and high performance, IQF conveyors are designed to meet the specific requirements of each product type and production process. In the next paragraph, let’s explore IQF conveyor belts and their applications in the food industry with Tan Long.

Advantages of IQF conveyor belts

The advantages of the IQF freezing conveyor system are:

• Fast cooling: In just about 70-100 seconds, the product is cooled quickly.
• Preserving freshness and nutrition: Ensures the freshness and nutritional value of the product is maintained.
• Longer preservation time: Compared to traditional freezing methods, the preservation time is extended, keeping the product fresh longer.
• Energy saving: Minimal water loss and energy savings, operating costs are only half that of using liquid nitrogen.
• High product quality: Does not cause cold burn and the product does not move during the freezing process, ensuring excellent quality.
• Retains original shape: The product retains its original shape and is not deformed during the freezing process.
• Meets hygiene standards: The system meets industrial hygiene standards, ensuring food safety.
• Fast and flexible installation: Installs easily in complete units and can be expanded to increase capacity. This system can be used for both NH3 and Freon refrigeration systems.
• Suitable for thin products: Suitable for freezing thin products such as fish fillets, shrimp, tater tots, pies and egg products.

What benefits does the IQF freezing conveyor bring?

IQF freezing conveyor belts are products that bring users great benefits because they have the following outstanding features:

• The entire system is compactly designed, simple to operate, high stability, and reasonable investment costs.
• There is no cold burning phenomenon, and it does not automatically move during work.
• Meets 100% industrial hygiene standards without impact, retains original shape; There is no distortion and the product is special.
• Diverse types of capacity, meeting the high demand of customers.
• Quick installation, stable operation for many hours. Can be expanded to increase capacity, bringing high work efficiency.
• The product can be used for both NH3 and Freon refrigeration systems. Using an electronic expansion valve, the amount of refrigerant needed for the system is 1/5 times compared to using a traditional low-pressure or overflow tank.

>>>See more: What is IQF freezing conveyor? Structure and operating principle

Classification of conveyor belts for IQF conveyor refrigeration systems

IQF (Individual Quick Freezing) refrigeration system conveyors can be classified based on a number of criteria, including:

Freezing chamber of Mesh IQF refrigeration system

The grid-shaped IQF refrigeration system freezing chamber is an optimal solution for quickly and uniformly cooling products. This system is specially designed to handle foods such as vegetables, fruits, and fruits, providing outstanding cooling efficiency.

One of the outstanding advantages of the mesh IQF freezing chamber is the optimized air mixing flow to enhance heat transfer efficiency. This helps shorten freezing time and ensures better product quality.

In addition, this system uses a strong and oscillating pressure air flow supplied from below, helping to cool the product quickly without causing ice lumps to stick. . This helps maintain the food’s natural shape and texture

Another advantage of the mesh IQF freezer is that the cleaning system is very easy. This helps save time and effort during maintenance, ensuring food safety and hygiene.

In workshops or food processing plants, the IQF refrigeration system chamber is often combined with other conveyors such as steaming, cooling, drying conveyors, glazing conveyors and re-freezing chambers. This combination creates a complete production line, improving productivity and production efficiency.

>>>See more: Concept and technical specifications of IQF refrigeration system

Twist-shaped IQF refrigeration system freezing chamber

The chamber has a box structure, double-sided stainless steel walls using 150mm thick polyurethane material, density 40kg/m3. Inside the conveyor belt follows a spring spiral from the bottom up. Forced convection air indoor unit with high speed and low temperature, about -40 to -30 degrees Celsius.

Compact chamber structure, low heat loss, high efficiency, however, repair and maintenance are complicated due to the conveyor belt layout. Conveyor belts are made of stainless steel or heat-resistant plastic, moving quickly and slowly thanks to electronic inverters. There is a cleaning system with water and compressed air, and a vibrating hammer in the freezing chamber to prevent products from sticking.

The indoor unit has an axial fan, water-resistant motor, NH3 refrigerant, stainless steel heat exchanger pipes, aluminum fins, and water defrost. All details of the IQF refrigeration system (condenser support frame and conveyor belt, condenser cover) are made of stainless material.

The IQF spiral refrigeration system freezing chamber has many advantages over other types of freezing chambers. Its compact design saves production space, making it very suitable for factories with limited space.

In addition, the IQF spiral freezing chamber is designed to be safe and reliable. It helps reduce risks in production, improve product quality and protect workers.

Furthermore, the spiral structure of the IQF freezing chamber overcomes the problem of belt tension, which is a disadvantage of straight conveyor systems. As a result, the conveyor belt is more durable, reduces maintenance and replacement costs, and improves the performance of the entire system.

Straight IQF refrigeration system freezing chamber

Arranged on conveyor belts, blowing cold air onto the surface of the conveyor belt when products are available. The cover is made of 150mm thick polyurethane, covered with stainless steel on both sides. Thanks to the straight conveyor shape, this type is quite easy to manufacture, products enter and exit at both ends. However, the conveyor belt length is large so it takes up space. To limit heat loss at the door, this system uses a small gap in the door, depending on the type of product.

Straight IQF refrigeration system freezing chamber – one of the conveyor types that brings many significant benefits to the frozen food production process. One of the outstanding advantages of this system is the fast freezing time, helping to shorten the production cycle and increase productivity.

In addition, the straight IQF freezing chamber also minimizes the dehydration of the product during the freezing process, helping to maintain the quality and natural shape of the food. This is especially important for sensitive products such as seafood, fruits and vegetables.

Another advantage of this system is its low operating costs, which saves energy and reduces production costs. At the same time, the straight IQF freezing chamber ensures excellent product quality, avoiding cold burn that affects the taste and texture of food.

This system also meets strict food hygiene and safety standards, helping to prevent the growth of bacteria and ensure consumer health.

Finally, the straight-shaped IQF freezing chamber provides convenience during maintenance and upgrades. Installing additional indoor units can be easily done, helping to expand production capacity when needed.

Freezing chamber of super-fast IQF refrigeration system

The structure is relatively similar to the straight chamber type above. However, inside there are 1 to 2 conveyor belts whose speed can be adjusted depending on the product and needs. The refrigeration units are arranged in two rows on both sides of the conveyor belt. The wind deflector helps the cold heat from the air to be more concentrated on the product.

The supply chamber has a 150-200mm polyurethane insulation cover on both sides of the stainless steel surface. The freezing chamber has a cold storage-style door with a door heating thermistor system, and there is also lighting inside.

Conveyor systems and equipment are made of stainless steel. Stainless steel indoor unit with aluminum fins suitable for R22 and NH3 circulating fluid supply pumps, specially designed wing steps to increase heat transfer efficiency and make cleaning easy. All surfaces and floors are watertight, and inside there is a freezer with an inclined slope to help drain water easily.

The IQF super-speed freezing chamber brings outstanding efficiency in food preservation with freezing speed as fast as using liquid nitrogen, limiting product dehydration and saving 50% of operating costs.

This system ensures excellent quality, preserving the natural shape and texture of foods, from fish fillets and shrimp to tater tots, pies and egg products.

In addition to meeting food hygiene and safety standards, the IQF super-speed freezing chamber is also convenient and flexible when installing, operating and expanding capacity. The system is compatible with both NH3 and Freon refrigerants, providing a variety of applications.

With outstanding advantages, the IQF super-speed freezing chamber is an essential solution for the frozen food industry, helping to improve quality, optimize costs and meet market needs.

>>>Reference: Concepts and Technical Characteristics of IQF Refrigeration System

Structure of IQF freezing conveyor belt

The structure of the IQF freezing conveyor includes:

• Heat insulation panel: Made of stainless steel, containing Polyurethane (PU) foam inside, helping to effectively insulate heat.
• Conveyor belt: Uses SU304 material and has a special spiral structure, providing high heat transfer efficiency.
• Evaporator: Made of aluminum alloy, with densely designed aluminum tubes to increase heat exchange capacity
• Electrical control box: Made from SUS304 stainless steel, controlled by main switch, PLC or touch screen.
• Safety equipment: Including electrical sensors, sensors and emergency switches, ensuring safety during system operation.

Operating principle of IQF conveyor belt

The IQF refrigeration system uses NH3 refrigerant and has many different types of freezing conveyors. The method of supplying fluid to the evaporator is done by pump. Parallel to the freezing conveyor is the refreezing conveyor, which saves time and energy by handling both processes simultaneously.

To defrost the refrigeration units of both the freezing and refreezing conveyors, water is used. Then, compressed air is used to dry the conveyor belt. In addition, the IQF refrigeration system also includes other equipment such as high and low pressure tanks, oil separators, oil recovery tanks, intermediate tanks, condensers, cooling water pumps, fluid pumps, as well as other equipment. such as a water tank used for defrosting.

Tan Long – Supplier of quality IQF conveyor belts today

Tan Long Mechanic Electric Refrigeration Joint Stock Comapny Established in 2005, specializing in the field of industrial refrigeration, with a core team of more than 20 years of experience in the field of operation, we have participated in completing many key projects all over the country. Tan Long provides comprehensive services from consulting, providing technical solutions, design and installation of industrial refrigeration systems, cold storage, and cool storage.

Tan Long’s top goal is to provide customers with the best products and services applying the latest technology to minimize energy consumption and maximize investment and production costs.

With our existing experience and strengths, we always best meet the needs of our customers.

Tan Long Mechanic Electric Refrigeration Joint Stock Company

Head office: 86 Dong Den, Ward 14, Tan Binh District, Ho Chi Minh City

Factory: Lot MM3-2, Road No. 04, Duc Hoa 1 Industrial Park, Duc Hoa Dong Commune, Duc Hoa District, Long An

Phone: (+84) 028 38494943 – 028 62937108

Email :info@tanlongvn.com

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