The work principle of impact tunnel freezer

The freezing form is impact type, that is, two-way blowing freezing. High-speed pulsed cold air is applied to the upper surface of the vannamei shrimp that continuously enters the freezing machine, so that the upper surface of the food is quickly frozen. The lower surface of the food is in contact with the stainless steel mesh belt, and the lower surface of the belt is sprayed uniformly, so that the lower surface of the food is also quickly frozen. The benefit of bidirectional freezing reduces the freezing time by half, and quickly passes through the ice crystal production zone (0 to -5 degrees) to reduce the loss of nutrients and the original juice. The original taste is the purpose. The quality of frozen products is doubled, the loss of dry consumption is reduced by half, and the output per unit time is doubled. This kind of structure freezer is especially suitable for the rapid freezing of vannamei shrimp, and will be widely used in vannamei shrimp and other aquaculture processing of small-volume bulk products or flat products.