your location:crab compressortunnel type quick freezing machineit is a kind of equipment for quick freezing of seafood products. its quick freezing process is as follows:
1. preparation work: place the crabs to be processed on the conveyor belt, and the conveyor belt enters the quick freezing machine.
2. pre-cooling: intunnel type quick freezing machinethe pre-cooling area uses forced circulation air cooling to reduce the temperature of the crabs to about -10°c.
3. freezing: in the quick-freezing area, the temperature of the crabs is quickly lowered to below -18°c through liquid nitrogen spraying, cold air blowing, etc.
achieve rapid freezing effect. under normal circumstances, the quick freezing time needs to be determined according to different crab types and specifications, and it usually takes 10-20 minutes.
4. isothermal: at the outlet, through the gradual heating of the isothermal area, the ice crystals on the surface of the crab are melted and the surface is restored to moisture.
5. packaging: after the above processing, the quick-frozen crabs will be transported to the packaging area via a conveyor belt for packaging and sealing to ensure the quality and freshness of the product.
it should be noted that in the crab compressortunnel type quick freezing machineduring the operation process, parameters such as temperature and time need to be accurately controlled to ensure the quality and taste of the crabs.
at the same time, equipment also needs to be maintained and maintained to ensure its normal operation and extend its service life.
