Extruded plastic cooling device

Abstract

The invention relates to an extruded plastic cooling device comprising a frame and a conveying belt mechanism used for conveying of an extruded plastic material strip. The conveying belt mechanism includes at least two layers of horizontal conveying belt, a fluid ejector and a fluid collecting tank, the at least two layers of horizontal conveying belt are arranged along the perpendicular direction in the frame, and the conveying direction of each layers of horizontal conveying belt is opposite to that of an adjacent layer of horizontal conveying belt, the fluid ejector is arranged above the first layer of horizontal conveying belt, and is used for spraying a cooling fluid to the material strip, and the fluid collecting tank is at least arranged below the first layer of horizontal conveying belt, and is used for collecting the cooling fluid leaking from the conveying belt. The extruded plastic cooling device realizes the advantages of good cooling effect, uniform plastic particle appearance, less fluid content and less land occupation 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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