A mill for producing recycled low temperature low density polyethylene

CN224321544UActive Publication Date: 2026-06-05LIANYUNGANG YOUDAO NEW MATERIAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LIANYUNGANG YOUDAO NEW MATERIAL TECH CO LTD
Filing Date
2025-04-30
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing grinding mills have low operating efficiency and high energy consumption at room temperature, and materials are prone to sticking together. Liquid nitrogen-assisted cooling equipment has a non-compact structure and uneven cooling, which affects the powder quality of recycled low-temperature low-density polyethylene.

Method used

A grinding drum integrating stirring and grinding mechanisms was designed. It can be rotated 180°. Combined with an insulation jacket and a vibration generator, it realizes the integrated operation of material cooling and grinding. By using staggered stirring blades and a multi-roller grinding mechanism, it ensures that the material is crushed uniformly in a low-temperature environment.

Benefits of technology

It improves grinding efficiency, avoids material sticking, enhances cooling uniformity and space utilization, and ensures powder quality.

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Abstract

The utility model relates to polyethylene production preparation technical field especially relates to a mill for producing low temperature low density polyethylene of regenerative, including bottom plate and parallelly arranged two cross beams in the top of bottom plate, the both ends of every cross beam all are connected with bottom plate through the vertical setting stand, two cross beams are rotatory respectively installed with the axle, and the axis of two axles coincides and is perpendicular to the extension direction of cross beam, is provided with the mill barrel between two cross beams, and the outer circumferential surface of mill barrel is fixedly connected with the similar end of two axles respectively, form the mill bin in the mill barrel, and one side of mill barrel is provided with the feed port leading to mill bin, and the other side of mill barrel is provided with the discharge port leading to mill bin, the utility model discloses through the integration of stirring mechanism and grinding mechanism in the mill barrel that can overturn 180, has realized the integrated operation of material cooling and grinding, effectively solved the problem such as uneven cooling, low space utilization rate caused by the external stirring barrel of traditional equipment.
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