Revealing The Working Principle Of The Puff Snack Food Extruder

Revealing The Working Principle Of Puffed Food Extruder

Puffed food is deeply loved by consumers. Behind its unique taste is the complex and exquisite working mechanism of puffed food machines. Let's take a look at the working principle of puffed extruders.

When the material enters the puffing machine, it will first come to the screw extrusion system. When the screw rotates at high speed, with the help of a special spiral structure, it pushes the material forward in the barrel like a pair of powerful hands. In this process, strong friction occurs between the material and the screw, the inner wall of the barrel and itself, and this friction is converted into a large amount of heat energy. At the same time, the external heating device of the machine is also working in coordination to further increase the temperature of the material and make it reach a specific high temperature condition.

The material in a high temperature and high pressure environment is like a huge energy sealed. When it is pushed to the die head, due to the special design of the die head, the material is instantly released from the high pressure state to the normal pressure environment. This sudden change in pressure is like the sudden explosion of pent-up energy. The moisture in the material quickly vaporizes and expands, forming countless tiny bubbles. Just like popcorn popping under high temperature, the originally tight material structure is quickly stretched open, and the volume instantly increases several times, thus completing the puffing process.