What is the working principle of the twin screw food extruder? The following is a description of the professionals of the twin screw food extruder:
Obviously, the material will flow from the high pressure zone to the low pressure zone in two directions: first, the wear of the screw with the screw is reduced, and the material is transported, sheared, mixed, and heated by the casing of the barrel. Under the action of high pressure, it matures and is finally extruded outside the cylinder.
Reverse-rotating twin-screw food extruders generally use two screws of exactly the same size but with opposite threads. The difference between the inward rotation and the outward rotation is that the position of the pressure zone is different. The pressure generated by the inward rotation of the twin screw is high and low. When the material passes through the twin screw, extremely high pressure is generated at the inlet, which makes feeding difficult. At present, this inward reverse rotation type is rarely used; the pressure generated by the twin screw outward rotation is upper and lower, which is favorable for feeding. However, compared with the co-rotation, the C-shaped material flow formed by the material in the screw cannot be moved from one screw to the other, the mixing degree of the material is significantly reduced, and the self-cleaning ability is not rotated in the same direction. The twin screw is effective and stable.
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