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Composition and Characteristics of Single Screw Extruder Granulator
May 23, 2018

The single screw extruder granulator is a key component in the extruder and its performance will directly affect the application range and productivity of the extruder. In general, the single-screw extrusion granulator is mainly made of high-strength, corrosion-resistant alloy steel. Next we mainly analyze the structure and characteristics of the product for everyone.


First of all, in the single screw extruder granulator, several components mainly included are a screw, a barrel, a hopper, a head and a die. The barrel is a metal cylinder, usually made of alloy steel with high heat resistance, high compressive strength, strong wear resistance, corrosion resistance, or composite steel pipe lined with alloy steel. The barrel and the screw cooperate to realize the crushing, softening, melting, plasticizing, exhausting and compacting of the plastic, and continuously and uniformly conveying the rubber material to the forming system.


In order to ensure the performance of the equipment, when designing and manufacturing, it is usually required to control the length of the barrel of the single screw extruding granulator to 15 to 30 times its diameter so that the plastic can be fully heated and fully plasticized. As a principle. The main cylinder 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 head is equipped with a pressure sensor for testing melt pressure.


The single screw extruder granulator has a very powerful function. It can be said that the equipment has simultaneously condensing, lifting, feeding, extruding, air-cooling hot pellets, and air-feeding cooling functions to achieve an automatic continuous operation. Screw granulator production efficiency. At the same time, the equipment has high working efficiency, low energy consumption, full plasticization, and uniform dispersion.


Because of this advanced functional design, single screw extruder granulators can adapt to a variety of process requirements. The front of the head adopts hydraulic quick-change screen device, which saves time, labor and environmental protection. The single-screw extrusion granulator uses a rotary cutter head and a fine-adjusting device for air-cooled hot pelletizing. The electronic control system of the equipment adopts PLC, visual interface and frequency conversion technology to achieve full automation control.

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