High-filling wood-plastic composites granulating device

Abstract

The invention provides a high-filling wood-plastic composites granulating device. The granulating device comprises a hopper, a parallel double-screw extruder, vacuum exhaust ports, particle cutting die heads, a particle cutting hob, a material collecting cover, a collecting hopper, a feeding pipe, a storage hopper and a discharging port, wherein the hopper is located on the left side of the parallel double-screw extruder, a vacuum exhaust port I is located in the middle of the parallel double-screw extruder, the right side and the upper end and the lower end of the parallel double-screw extruder are provided with the particle cutting die heads, the middle of the upper and lower end particle cutting die heads is provided with the particle cutting hob, the right side of the particle cuttinghob is the material collecting cover, the material collecting hopper is directly below the material collecting cover, the material collecting hopper is connected with the storage hopper through the feeding pipe, a vacuum exhaust port III is arranged above the storage hopper, and the discharging port is located below the storage hopper. According to the granulating device, high-filling wood-plasticcomposites particles are prepared by introducing the parallel double-screw extruder and the special granulating die heads, the particles are uniform in texture, the production efficiency is high, nodust exists, the quality is stable, and the material oxidation degradation rate is low.

Description

technical field [0001] The invention relates to the field of granulation devices, in particular to a high-filling wood-plastic composite material granulation device. Background technique [0002] Wood-plastic composites (Wood-Plastic Composites, WPC) is a new type of composite material that has been booming at home and abroad in recent years. It refers to the use of polyethylene, polypropylene and polyvinyl chloride, etc. Wood flour, rice husk, straw and other waste plant fibers are mixed into new wood materials, and then processed by extrusion, molding, injection molding and other plastic processing techniques to produce boards or profiles. For the production of wood-plastic composite materials for profiles, the plant fiber content is usually as high as 60%. The traditional process mostly uses parallel twin-screw extruders to blend and plasticize, and then crushed by fans to form crushed materials and used for the production of profiles. However, this process will cause se...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a high-filling wood-plastic composite material granulation device for the problems of poor fluidity of high-filling wood-plastic composite materials, easy breakage of material strands during extrusion and granulation, and spraying.

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