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The working principle of pet feed extruder

Jan 24, 2018

Expansion is the material humidification, heating and quality treatment, and extrusion die hole or suddenly gush out pressure vessel, because of the sudden lowering of the volume expansion of the process operation, in the puffed operation, the material heating, pressure treatment, no steam or water expansion into dry puffing, heating the material, pressure and add steam or water swelling into the wet extrusion.

The extruder used in feed production is to adjust the material, continuous pressurization extrusion, sudden buck and the bulk volume expansion of the process, its main production equipment is screw-type extruder, also divided into dry extrusion machine and wet expansion machine, dry expansion machine working principle is to rely on mechanical friction, extrusion of materials for pressure, humidification treatment.