Device for removing initiator through photolysis of 3D printing waste light-cured plastic

By designing a photolysis device for removing initiators from waste photocurable plastics printed in 3D printing, which adopts an air flotation mode and a central light source, the problem of difficult removal of photoinitiators is solved, achieving a highly efficient photolysis effect and reducing environmental pollution and the generation of harmful substances.

CN224408493UActive Publication Date: 2026-06-26GUANGDONG UNIV OF TECH
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Patent Information

Application Number
CN202521158611.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-09
Publication Date
2026-06-26
Estimated Expiration
2035-06-09

AI Technical Summary

Technical Problem

In existing technologies, the recycling of waste photocurable plastics from 3D printing is difficult to effectively remove photoinitiators, leading to environmental pollution and the generation of harmful byproducts, and there is a lack of mature photolysis equipment for removing initiators.

Method used

Design a device for photolysis removal of initiators from waste photocurable plastics printed in 3D. The device adopts an air flotation mode and a central light source with reflectors. Photolysis is achieved through ultraviolet lamps, and the particle material is agitated and photolysis is carried out by a guide cylinder and an air blowing pipe.

Benefits of technology

It achieves efficient removal of photoinitiators, reduces the risk of environmental pollution, improves the recycling efficiency of plastics, and avoids the generation of harmful substances.

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Abstract

The utility model discloses a device for removing an initiator through photolysis of 3D printing waste light-cured plastics. The device comprises an outer cylinder body, a central light source, a guide cylinder, a lower air blowing pipe, an upper air blowing pipe and a filtering assembly, the central light source is arranged in the center of the outer barrel and comprises a light source barrel, a plurality of light source lamp tubes and a reflecting piece; a guide cylinder is arranged between the outer side of the light source cylinder and the inner wall of the outer cylinder, and a lower air blowing pipe penetrates through the outer cylinder and the guide cylinder to be arranged on the lower portion of the guide cylinder. According to the device for removing the initiator through photolysis of the 3D printing waste light-cured plastic, provided by the utility model, for crushed waste light-cured plastic particles, the particles are stirred in an air flotation mode, and photolysis operation on the particles is realized by matching with a central light source. The combination of the blowing device and the internal guide cylinder is optimized, so that circulating stirring of the granules can be realized. The central light source adopts a plurality of lamp tubes and is matched with a reflecting piece, so that the maintenance in the subsequent use process is facilitated while the light intensity is ensured.
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