Granulation device for production of high-filling wood-plastic composite material

Abstract

The invention relates to the technical field of granulation equipment, in particular to a granulation device for production of a high-filling wood-plastic composite material. The device structurally comprises a cylinder body, a sealing cover is installed at one end of the cylinder body in a sealing mode, a porous plate is inlaid in the other end of the cylinder body, the sealing cover is providedwith a machine head connector, the cylinder body is provided with a vacuum connector, the two side plate faces of the porous plate are provided with a pressing roller and a cutter correspondingly, thepressing roller is located between the sealing cover and the porous plate, a gap is reserved between the pressing roller and the porous plate, the cutter edge of the cutter faces the porous plate, agap is reserved between the cutter edge of the cutter and the plate face of the porous plate, the porous plate is connected with a rotating shaft for driving the porous plate to rotate, and a discharging opening is formed in the end part, where the cutter is located, of the cylinder body. According to the device, the high-filling wood-plastic composite material particles which are uniform and dense, consistent in size and low in particle moisture content can be produced, no dust is generated in the production process of the granulation device, and the granulation device has the advantage of being high in production efficiency.

Description

technical field [0001] The invention relates to the technical field of granulation equipment, in particular to a granulation device for the production of highly filled wood-plastic composite materials. Background technique [0002] High-filled wood-plastic composite material is a composite material made of wood, plastic and high-content auxiliary materials. The development of high-filled wood-plastic composite materials has a history of decades. Due to the high environmental performance of high-filled wood-plastic composite With the improvement of its quality, people's acceptance gradually improves, and the output increases year by year. Mixing and granulation is the first process in the processing of high-filling wood-plastic composite materials, and it is also a key step that directly affects the quality of wood-plastic composite materials. There are three main traditional granulation methods for high-filling wood-plastic composite materials: 1. The co-rotating twin-screw...

AI Technical Summary

Problems solved by technology

Mixing and granulation is the first process in the processing of high-filling wood-plastic composite materials, and it is also a key step that directly affects the quality of wood-plastic composite materials. There are three main traditional granulation methods for high-filling wood-plastic composite materials: 1. The co-rotating twin-screw extruder is equipped with a hot-cut die head, which needs to accumulate material in the die head to build pressure. As a result, the material stays in the cavity for a long time, and the wood powder is not resistant to temperature, which is easy to cause burning, and the material accumulates in the cavity. It is difficult to clean the inside of the machine head and cause waste of materials; 2. The parallel twin-screw extruder is equipped with a crushing fan for air cooling, and the crushing fan breaks up the loose materials from the parallel twin-screw extruder again, making the material dusty , so that the processing is unstable, and the crushed particles are easy to absorb moisture, which affects the quality; 3. The parallel twin-screw extruder is equipped with a single-screw extruder and a die surface eagerly cutting die head. The disadvantage is that the equipment investment is large and the output is low. , high energy consumption, large volume of material in the cavity, long heat history of the material, and the material will be degraded

[0003] After years of development, the above-mentioned granulation equipment still stays at the initial primitive stage, which is not conducive to improving the quality of wood-plastic composite materials and causing corresponding process environmental protection problems, especially the high-filling particularity of highly-filled wood-plastic composite materials, the granulation process The impact on its quality is very important, and it is urgent to modify its granulation device

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