What is a single screw granulator recycling
What is a single screw granulator
First, the concept
The main barrel of the single-screw granulator is electrically heated, and the water cooling automatically controls the barrel temperature. The screw core can be cooled by water (oil) to control the screw temperature. The machine head is equipped with a pressure sensor that tests the melt temperature and melt pressure. The air-cooled die face is hot-cut, the granulation auxiliary machine and the rotary blade are driven by an AC motor, and the frequency conversion speed regulation; the dehydration drying system is composed of a centrifugal dewatering machine, a drum shaker, a wind blow storage bin and the like.
Second, the working principle
The material of the single-screw granulator passes through the feeding port and is twisted into a lump and rolls along the screw groove under the action of the rotating screw. The material is further kneaded and plasticized due to the shearing, compression and stirring of the screw. The temperature and pressure are gradually increased, showing a viscous flow state, and passing through the handpiece at a certain pressure and temperature to obtain a product of a desired shape.
Third, the scope of application
Single screw extruder is mainly used for filling, blending, modification, addition, chlorination, polypropylene and superabsorbent resin processing of rubber and engineering resins; degradable masterbatch, polyamide polycondensation, polyurethane addition Extrusion of poly-reaction; granulation of carbon powder, magnetic powder, insulation material for cable, sheath material, low-smoke halogen-free flame-retardant PVC cable material and preparation of various silane cross-linking materials.