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- Principle and Description of Various Quick-freezing Equipment
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Principle and Description of Various Quick-freezing Equipment
1) Double Drum Spiral Freezer: it’s applicable for the frozen food with long freezing time or large output, such as meat, ready meals, aquatic products, surimi food, ice cream, and etc. Various directions of the inlet and outlet are based on the requirements of the process of the customer’s workshop. Normally low in and low out. The freezing capacity is 1000-4000Kg/hour.
2) Single Drum Spiral Freezer: it’s applicable for meat, surimi food, aquatic products, ready meals, ice cream, and etc. It requires small floor area with high efficiency. Normally low in and high out, or high in and low out as options. The freezing capacity is 500-1500Kg/hour.
There is only 1 pc of drum for Single Drum Spiral Freezer, and the belt spirals up or down on the drum. Spiraling up makes it low in and high out, while spiraling down makes it high in and low out.
3) There are 2 common spiral drive options: bottom chain drive and top drive. Dalian Yongsung spiral freezer technology features proven external drive configuration, and the option for external fan motors. External motors reduce the number of component surfaces within the unit, which also helps to maximize hygiene, and makes cleaning and maintenance much easier, particularly if the inside of the freezer is running at -35C. While bottom chain drive configuration may be an option for plants where headroom is an issue and it reduces the overall height of the unit by around 700mm.
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1) Mesh Belt Tunnel Freezer: as basic type of tunnel freezer, it’s applicable for meat, surimi food, aquatic products, ready meals, ice cream, and etc. And the freezing capacity is 100-2000Kg/hour. Mesh belt tunnel freezer includes single belt type, double belt type and multi-layer type.
2) Fluidization Tunnel Freezer: it adds vibration mechanism and blowing device based on the mesh belt tunnel freezer and it’s applicable for the individual quick freezing of granular and sliced food like clam, corn grain, strawberry, blueberry, diced carrot, etc. The freezing capacity is 100-3000Kg/hour.
3) Impingement Tunnel Freezer: it’s composed of fans with multiple high pressure air pipes, which shoot the air to the upper and lower surfaces of the product through specially customized nozzles of special specifications. This blowing method makes the product with enough evaporation area to better play the heat dissipation effect and achieve the rapid freezing effect. The unique jet blowing design is adopted to improve the quick-freezing efficiency of cold air on frozen products, which makes the frozen products freeze faster and the quality is uniform.
4) Solid Belt Tunnel Freezer: it is widely used in the aquatic processing industry, which is applicable to individual quick frozen of a variety of aquatic products. Solid Belt Tunnel Freezer can freeze: whole fish, cod, catfish, basa fish, tuna, salmon, fish fillet, etc.
3. Trolley Freezer: it is designed for crust freezing or full freezing of meats, fish, poultry, cakes and other packaged perishable products. Custom trolleys can be designed to fit specific customer product requirements.
4. Cold Room/Walk-in Freezer: it refers to the method that the food quickly passes through its maximum ice crystal formation area and freezes rapidly when the average temperature reaches - 18 ℃. Various changes will take place in the process of food freezing, such as physical changes, cell tissue changes, biological and microbial changes, etc. General temperature in cold room is -15 ℃~-35 ℃. Cold room is mainly used for low-temperature freezing of food, medicine, medicinal materials, chemical raw materials and other items.
5. Plate Freezer: it’s a device that directly places food on a metal plate cooled by refrigerant and contacts with the metal surface for heat exchange to achieve the purpose of freezing food. It’s mainly installedd on small fishing boats.
 COLD ROOM |  PLATE FREEZER |
Please kindly contact Mr. Carey QU (quqy@yong-sung.com.cn) for more information about quick-freezing equipment.