Fruit Processing Machine – Fluidized Bed Freezer from Square

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Fruit Processing Machine – Fluidized Bed Freezer from Square

The Fluidized Bed Freezer from Square represents a significant leap in the efficiency and quality…

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The Fluidized Bed Freezer from Square represents a significant leap in the efficiency and quality of fruit processing. This machine is tailored to handle a variety of small food items, especially fruits that require rapid freezing to maintain freshness and nutritional value. This blog will offer you a panoramic view of this machine.

Fundamentals of Fluidized Bed Freezing Technology

Fluidized bed freezing technology is essential in food processing for maintaining the quality and texture of delicate products like fruits. This is achieved through a combination of aerodynamics, refrigeration systems, and precise control of feed temperatures and airflow.

Understanding Fluidized Bed Freezing

Fluidized bed freezing works by suspending food products in an upward flow of cold air, creating a fluid-like state for efficient freezing. This method, often referred to as Individual Quick Freezing (IQF), ensures that fruits freeze rapidly without forming large ice crystals.

Fluidized Bed Freezer

The technique utilizes strong vertical airflow beneath a belt or perforated bed, promoting even freezing across all products. This rapid freezing process preserves the texture, color, and nutritional value of the fruits, making it ideal for high-volume applications.

Components of a Fluidized Bed Freezer

A fluidized bed freezer consists of several key components, each crucial for effective operation:

  • Fans: Generate a strong, consistent airflow to fluidize the products.
  • Refrigerant: Circulates within the refrigeration system to achieve the necessary freezing temperatures.
  • Evaporators: Remove heat from the interior air, aiding in maintaining low temperatures.
  • Belt/Bed: Supports the food products and allows air to pass through, ensuring even freezing.

These elements work in tandem to ensure quick freezing at optimal feed temperatures, typically around -18°C to -40°C, depending on the product.

The Role of Square Technology Group Co.

Square Technology Group Co. specializes in advanced fluidized bed freezers, focusing on high efficiency and reliability. Their freezers feature optimized aerodynamics for consistent fluidization, and robust refrigeration systems to maintain low freezing temperatures.

By integrating innovative technology, Square enhances the thermodynamic efficiency and operational simplicity of the freezers. This ensures minimal temperature fluctuations and reduces energy consumption, which is key for sustainable operations in fruit processing. Moreover, its machines apply precise airflow control to maintain optimal freezing conditions, thereby improving product quality and operational efficiency. Their advanced designs are tailored to meet the stringent demands of the food processing industry.

Air Flow Control

Applications and Advantages of Fluidized Bed Freezing

Fluidized bed freezing offers numerous benefits across various segments of the food processing industry, enhancing the quality and efficiency of frozen products. This technology is particularly useful for preserving the texture and freshness of fruits, vegetables, meat, seafood, dairy, and poultry products.

Fruits and Vegetables

Fluidized bed freezing is highly effective in processing fruits like strawberries and vegetables such as peas, corn, and mango slices. This method rapidly freezes each piece individually, maintaining their natural texture and nutritional value.

Processed Strawberries

Fluidized bed freezing ensures high efficiency by preventing clumping and allowing for uniform freezing. Shrimp, berries, and diced fruits benefit from this technology, resulting in high-quality frozen products with superior taste and appearance.

Meat and Seafood Processing

Fluidized bed freezers are vital in the meat and seafood industry for freezing items like shrimp, fish fillets, and other seafood. This technique preserves the freshness and texture of meat and seafood by rapidly freezing each piece separately.

The technology is especially beneficial for products like shrimp and fish due to its efficient freezing process, which enhances the quality of the final product. This method also helps to retain moisture, ensuring the product remains tender and flavorful when thawed.

Dairy and Poultry Products

In the dairy industry, fluidized bed freezing is employed for products such as dairy powders and shredded cheese. This method ensures that each particle is frozen quickly, reducing the risk of clumping and preserving the product’s quality.

For poultry, fluidized bed freezing is ideal for products like chicken nuggets and strips. This freezing method ensures even, rapid freezing, maintaining the meat’s texture and quality. The process results in high-quality frozen poultry products that retain their freshness and taste, providing an optimal balance of efficiency and quality.

Operational Aspects of Fluidized Bed Freezers

Fluidized bed freezers are essential in the fruit processing industry for their efficiency in quick-freezing and their user-friendly operation. Key aspects include effective installation and maintenance practices and strategies for optimizing freezing time and energy consumption.

Installation and Maintenance

Proper installation of a fluidized bed freezer begins with selecting the right location, ensuring adequate space for airflow and easy access for routine checks. The unit should be installed on a level surface with sufficient ventilation, which promotes optimal cooling efficiency.

Maintenance tasks are crucial for continuous high efficiency. Regular inspections of fans and the perforated bed help identify wear and tear early. Lubricating moving parts and cleaning air filters prevent blockages and ensure the smooth operation of the cooling machine.

Fluidized bed freezers often feature an ADF air defrost system designed to eliminate frost accumulation, reducing downtime and maintenance intervals. Checking the defrost mechanism periodically ensures it functions correctly, maintaining peak efficiency. Implementing a maintenance schedule helps extend the equipment’s lifespan and prevent unexpected breakdowns.

ADF System

Optimizing Freezing Time and Energy Consumption

Adjusting parameters such as airflow rate and bed height is essential for achieving optimal freezing time. The product must be evenly spread on the bed to ensure uniform quick-freezing, which improves product quality. Regularly monitoring and fine-tuning these settings can drastically reduce freezing time.

Energy consumption can be minimized by using variable speed drives on fans, which adjust airflow to match the load. Ensuring the freezer operates at its optimal energy consumption settings contributes significantly to cost savings. Integrating sensors and automation helps monitor and control energy use in real time, enhancing overall freezer performance.

Energy-efficient designs and technology improvements also play a vital role. Retrofitting older models with modern components can significantly enhance both performance and energy consumption, ensuring the fluidized bed freezer operates efficiently and economically.

Xiaohua Lou

Director of R&D institute of Square Technology Group

30 years’ experience on IQF freezer and food processing machineries. Owns 41 patents on fluidized bed IQF freezer, plate freezer, spiral ovens, etc. Rewarded by China Refrigeration Association with the silver breakthrough prize. Lou is active in writing articles and giving speeches on promoting the quick freezing technology and environment-friendly refrigerant.

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