A polyethylene wax prilling machine

By combining the cooling rotor and atomizer in the polyethylene wax granulator, and using a combination of high-speed airflow and water mist, the problems of low cooling efficiency, poor uniformity, and dust pollution in existing plastic granulators are solved, achieving a highly efficient and uniform plastic cooling effect, suitable for high-speed, high-volume production.

CN122058520BActive Publication Date: 2026-07-03ZHEJIANG DONGKE NEW MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG DONGKE NEW MATERIAL CO LTD
Filing Date
2026-04-23
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing cooling methods for plastic granulators suffer from low cooling efficiency, poor uniformity, high noise, dust pollution, and localized overcooling or uneven stress in heat-sensitive plastics.

Method used

A polyethylene wax granulator is used, which combines a jet component and an atomizer to cool the rotating core. Cooling is achieved by combining high-speed airflow and water mist. The jet direction of the jet component is offset from the vertical line of the rotating shaft to form a fast airflow ring. The nozzle is designed as a slit type to provide surface blowing and to form an efficient and uniform heat exchange environment in the cooling chamber.

Benefits of technology

It achieves efficient and uniform cooling of plastics, reduces localized overcooling and uneven stress in heat-sensitive plastics, improves water utilization efficiency, reduces dust pollution, and meets the cooling requirements of high-speed, high-volume production.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122058520B_ABST
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Abstract

This invention discloses a polyethylene wax granulator, including a feeding extruder; a base; four support arms; a cooling chamber supported by the support arms, the cooling chamber having a cooling channel running through it along the discharge direction of the feeding extruder; and a cooling rotor disposed within the cooling chamber, having a rotatable jet component. Compared to existing water tank immersion cooling, the cooling method of this device is more gentle and linear. Before entering the cooling chamber, the material is pre-cooled by air rapidly blown out of the cooling chamber, and then cooled by high-speed flowing air carrying water mist after entering the cooling chamber, rather than a sudden drop in temperature, and with more efficient water utilization.
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