Devices for cooling extruded plastics

Abstract

The invention relates to a device for cooling extruded plastics, comprising: a frame, and a conveyor belt mechanism for conveying strips of extruded plastics. The conveyor belt mechanism includes at least two layers of horizontal conveyor belts arranged vertically in the frame, wherein the conveying direction of each layer of conveyor belts is opposite to that of the adjacent layer of conveyor belts, and the fluid injector arranged above the first layer of conveyor belts , used for spraying cooling fluid to the material strips, and a fluid collecting tank arranged at least under the first layer of conveyor belt, used for collecting cooling fluid leaked from the conveyor belt. The device of the invention realizes the advantages of better cooling effect, uniform appearance of plastic particles, less fluid content and smaller occupied area.

Description

technical field [0001] The present invention relates to a device for the production of extruded plastics, in particular to a device for cooling extruded plastics. Background technique [0002] At present, in the plastic extrusion and granulation production line, the main equipment includes extruder, cooling device, traction frame, pelletizer and so on. Among them, the mixing effect of the extruder and the production process are the guarantee of product quality. In the plastic production process, after the extruder heats and extrudes the raw material, the shaped plastic is extruded from the head of the extruder. Due to the high temperature of the extruded plastic, it will be deformed under the action of gravity, so the temperature of the molded plastic needs to be cooled by a cooling device. [0003] In the prior art, the extrusion granulation process in the plastic processing industry mostly adopts water cooling to accelerate the cooling and crystallization of the strands....

AI Technical Summary

Problems solved by technology

However, lengthening or widening the water tank will definitely lengthen or widen the entire production line, which will greatly increase the cost and cause waste

[0005] The traction force of the strip movement comes from the granulator, so the produced strips often have uneven thickness and fail to meet the requirements, and even the strips may break, making continuous production impossible.

[0006] In addition, the plastic pellets obtained by water cooling often contain a large amount of water, which needs to be dried in the subsequent steps, which increases the operation steps and increases the energy consumption.

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