A solid-phase thickening reactor for PETG chips

By employing a vibration mechanism and intelligent control system in the PETG chip solid-phase thickening reactor, uniform heating and precise control of the falling speed of polyester chips were achieved, solving the problem of uneven heating and improving production efficiency and product quality.

CN121571091BActive Publication Date: 2026-05-26HUBEI GUOXIN JUZHI NEW MATERIAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUBEI GUOXIN JUZHI NEW MATERIAL TECH CO LTD
Filing Date
2026-01-27
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The reactors in existing continuous polyester chip solid-phase thickening production equipment cannot flexibly adjust the material falling speed, resulting in uneven heating and affecting product quality and production efficiency.

Method used

A solid-phase thickening reactor for PETG chips was designed. A vibration mechanism drives the supporting cylinder and the movable inner cylinder to shake synchronously. Combined with baffles and heating airflow, the raw materials are uniformly dispersed and the falling speed is precisely controlled. The feeding situation is monitored and adjusted in real time by pressure sensors and intelligent control system to ensure uniform heating.

Benefits of technology

This technology enables uniform heating of polyester chips, avoiding viscosity differences and yellowing problems caused by uneven heating, improving production efficiency and product quality stability, and reducing energy consumption and downtime risks.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a solid-phase thickening reactor for PETG chips, belonging to the field of polyester chip processing technology. It includes an outer cylinder with an inlet pipe and an outlet pipe installed at its top and bottom, respectively. Support legs are installed on the side of the outer cylinder. Inside the outer cylinder are a supporting cylinder and four movable inner cylinders. Connecting rings connect the supporting cylinder to the movable inner cylinders and between adjacent movable inner cylinders. This invention ensures that each chip can undergo sufficient and uniform heat exchange with the heat medium, eliminating heating "dead zones" and temperature differences in traditional equipment. Based on the synergistic effect of uniform dispersion, controllable feeding, and a three-dimensional thermal field, the raw material can undergo a thickening reaction in the reactor in an optimal state. This ensures the uniformity and thoroughness of the reaction, effectively avoiding quality problems such as chip viscosity differences and yellowing caused by uneven heating or inconsistent reaction times. Therefore, it significantly improves the final product quality, production efficiency, and batch stability of the PETG chips.
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