Types of conveyor belts IQF plays an important role in the rapid and uniform cooling of food products such as vegetables, fruits, meat and seafood. With high flexibility and performance, IQF conveyors are designed to meet the specific requirements of each product and production process. In the next section, let's Tan Long Explore the different types of IQF conveyors and their applications in the food industry.
Advantages of IQF conveyor
The advantages of IQF freezing conveyor system are:
- Quick Cooling: In just about 70-100 seconds, the product is cooled rapidly.
- Preserve freshness and nutrition: Ensure to keep the freshness and nutritional value of the product.
- Longer shelf life: Compared with 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: No freezer burn and no product movement during freezing, ensuring excellent quality.
- Keep original shape: The product retains its original shape and is not deformed during the freezing process.
- Meet hygiene standards: The system meets industrial hygiene standards, ensuring food safety.
- Quick and flexible installation: Easy to install as a complete unit and expandable for increased 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, shrimps, potato cakes, pastries and egg products.
What benefits does IQF freezing conveyor bring?
IQF freezing conveyor is a product that brings users great benefits because it has the following outstanding features:
- The entire system is compactly designed, simple to operate, highly stable, and has reasonable investment costs.
- No cold burning phenomenon, no automatic displacement during operation.
- Meet 100% industrial hygiene standards without impact, keep original shape; no distortion and special product.
- Diverse capacity types, meeting high customer demand.
- 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 that of using a low-pressure tank or traditional overflow.
>>>See more: What is IQF freezing conveyor? Structure and operating principle
Classification of IQF conveyor refrigeration system
IQF (Individual Quick Freezing) refrigeration system conveyors can be classified based on a number of criteria, including:
IQF Grid Type Refrigeration System Freezer Chamber
IQF grid refrigeration system freezer chamber is an optimal solution for fast and uniform cooling of products. This system is specially designed to handle foods such as vegetables, tubers, and fruits, providing superior cooling efficiency.
One of the outstanding advantages of the IQF reticulated freezing chamber is that the mixed air flow is optimized to enhance heat transfer efficiency. This helps shorten the freezing time, ensuring better product quality.
In addition, this system uses a strong and oscillating air flow supplied from below, which helps to cool the product quickly without causing ice to form. This helps to maintain the natural shape and texture of the food.
Another advantage of the IQF grid freezer is that the cleaning system is very easy. This saves time and effort during maintenance, ensuring food hygiene and safety.
In food processing plants or factories, IQF refrigeration system chambers are often combined with other conveyors such as steaming, cooling, drying, glazing and refreezing chambers. This combination creates a complete production line, improving productivity and production efficiency.
>>>See more: Concept and technical characteristics of IQF refrigeration system
IQF spiral refrigeration system freezer chamber
The chamber has a box structure, the double-sided stainless steel wall panels use 150mm thick polyurethane material, density 40kg/m3. Inside the conveyor belt follows a spiral spring form from bottom to top. Condenser forced convection air with high speed and low temperature, about -40 to -30 degrees C.
Compact chamber structure, low heat loss, high efficiency, however, repair and maintenance are complicated due to the conveyor layout. The conveyor belt is made of stainless steel or heat-resistant plastic, moving fast or slow thanks to the electronic inverter. There is a cleaning system with water and compressed air, and there is also a vibrating hammer in the freezing chamber to prevent products from sticking.
The condenser has an axial fan, a water-resistant motor, NH3 refrigerant, stainless steel heat exchanger, aluminum fins, and water defrosting. All parts of the IQF refrigeration system (condenser support frame and conveyor belt, condenser cover) are made of stainless steel.
The IQF spiral refrigeration system freezer has many advantages over other types of freezers. Its compact design saves production space, making it suitable for factories with limited space.
In addition, the spiral IQF freezer is designed to be safe and reliable. It helps reduce production risks, improve product quality and protect workers.
Furthermore, the spiral structure of the IQF freezer overcomes the problem of belt tension, which is a drawback of straight belt systems. As a result, the belt is more durable, reducing maintenance and replacement costs, and improving the efficiency of the entire system.
IQF straight refrigeration system freezer chamber
The system is arranged on the conveyor belts, blowing cold air onto the conveyor surface when there is a product. The cover is made of 150mm thick polyurethane, covered with two stainless steel sides. Thanks to the straight conveyor belt, this type is quite easy to manufacture, the product is fed in and out at both ends. However, the conveyor belt length is large, so it takes up space. To limit heat loss at the entrance and exit of the goods, this system uses a small gap door, depending on the type of product.
IQF straight refrigeration system freezer chamber – one of the conveyor belts 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 IQF straight freezer also minimizes water loss 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 and vegetables.
Another advantage of this system is the low operating cost, which helps save energy and minimize production costs. At the same time, the straight IQF freezer ensures excellent product quality, avoiding cold burn that affects the taste and texture of food.
The system also meets strict food safety and hygiene standards, helping to prevent bacterial growth and ensure consumer health.
Finally, the straight IQF freezer offers convenience in maintenance and upgrades. Additional cooling units can be easily installed, allowing for expansion of production capacity when needed.
IQF super fast refrigeration system freezer chamber
The structure is quite similar to the straight chamber type above. However, inside there are 1 to 2 conveyor belts that can adjust the speed depending on the product and demand. The cooling units are arranged in two rows on both sides of the conveyor. The air duct helps the cold air to be more concentrated on the product.
The chamber is covered with 150-200mm polyurethen insulation on both sides of the stainless steel surface. The freezer chamber has a cold storage-style door with a door heating resistor system, and there is also lighting inside.
The conveyor system and equipment are made of stainless steel. The stainless steel condenser and aluminum fins are suitable for R22 and NH3 circulating pumps, the fin pitch is specially designed to increase heat transfer efficiency and easy cleaning. All surfaces and floors are watertight, inside there is a freezer with a slope for easy drainage.
The IQF super-speed freezer provides superior efficiency in food preservation with freezing speeds as fast as when using liquid nitrogen, limiting product dehydration and saving 50% operating costs.
This system ensures excellent quality, preserving the natural shape and texture of foods, from fish fillets and shrimps to potato cakes, pastries and egg products.
In addition to meeting food hygiene and safety standards, the IQF super-fast freezer is also convenient and flexible in installation, operation and capacity expansion. The system is compatible with both NH3 and Freon refrigerants, providing a variety of applications.
With outstanding advantages, the IQF super-fast freezing chamber is an essential solution for the frozen food industry, helping to improve quality, optimize costs and meet market demands.
>>> Reference: Concept and Technical Characteristics of IQF Refrigeration System
Structure of IQF freezing conveyor
The structure of the IQF freezing conveyor includes:
- Insulation panel: Made of stainless steel, filled with Polyurethane (PU) foam inside, providing effective insulation.
- Conveyor: Using SU304 material and 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 of SUS304 stainless steel, controlled by main switch, PLC or touch screen.
- Safety equipment: Including electric sensor, sensor and emergency switch, ensure safety during system operation.
IQF conveyor belt operating principle
IQF refrigeration systems use NH3 refrigerant and have many different types of freezing conveyors. The method of supplying liquid to the evaporator is done by pump. Parallel to the freezing conveyor is the refreezing conveyor, which saves time and electricity by handling both processes simultaneously.
Water is used to defrost the evaporator coils of both the freezing and refreezing conveyor belts. Compressed air is then used to dry the conveyor belts. 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, liquid pumps, as well as water tanks for defrosting.
Tan Long - The current supplier of quality IQF conveyor belts
Tan Long Refrigeration Electrical Engineering Company Limited 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 across the country. Tan Long provides a full range of services from consulting to providing technical solutions, designing and installing 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 save maximum investment and production costs.
With our experience and existing strengths, we always best meet the needs of our customers.
Tan Long Refrigeration Electrical Engineering Company Limited
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