Introduce the method of tunnel freezer by classification

In a short time, the tunnel quick-freezer freezes the center temperature of the frozen items to -18°, so that no nutrients will be lost, the color crystal penetration will be changed.

Tunnel freezer is an efficient freezing equipment that can freeze a large number of products in a short time. It can effectively economically freeze various products stored in the refrigerator, such as meat, fish, shrimp, balls, vegetables, conditioning Food, dairy products, etc.

Cold storage can be divided into push type refrigerator, reciprocating type refrigerator, flat type refrigerator, fluidized type refrigerator, tunnel type refrigerator, spiral type refrigerator, hoist type refrigerator, etc.

The push tunnel freezer is mainly composed of a refrigeration system, a propulsion system, an electrical control system a quick freezing chamber. Under the action of manpower, the staff transports the frozen food trays into the freezing channel gradually moves towards the exit direction. During the movement, under the action of the fan the baffle, a stable vertical annular low-temperature air flow is formed, which flows exchanges heat horizontally with the frozen food to achieve rapid cooling freezing.

The freezing plate containing frozen food is placed on the horizontal transportation chain of the refrigerator. The freezing plate in the tunnel quick-freezer enters the lifting track of the quick freezing chamber together with the transportation chain to perform step lifting movement.

When the freezing plate rises to the bridge position, the propeller pushes the freezing plate on the lifting track to the descending track, then the freezing plate runs with the descending track to the horizontal transportation chain, the conveyor chain sends the freezing plate out of the refrigerator. When the frozen product board is used in the quick-freezer to achieve the above process, the strong cold air generated by the refrigeration system forms a stable horizontal annular low-temperature air flow under the action of the fan the deflector, exchanges heat with the frozen food that moves vertically to realize the frozen food The rapid cooling freezing completes the freezing process.

All the above processes are completed under the instructions of the "brain" of the refrigerator, the programmable controller (PLC) realizes human-computer interaction through the LCD touch screen. The main interface of the touch screen is equipped with "automatic", "quick freezing time adjustment", "manual", "alarm", "status", "frosting", etc. The system starts enters the interface of automatic operation state, the work instructions are issued by the "start" "stop" buttons on the touch screen.