A box-type internal rotary solvent recovery type vacuum drying equipment

By using a box-type internal rotary solvent recovery vacuum drying equipment, which employs multiple sets of rotating shaft clamp assemblies and a vacuum drying pipeline system, the problems of low clamping efficiency and incomplete solvent recovery in existing equipment are solved. This achieves uniform drying and solvent recovery of carbon fiber impregnated cloth, is suitable for vacuum explosion-proof environments, and improves production efficiency and environmental benefits.

CN122125822APending Publication Date: 2026-06-02NANJING HUAITENG MACHINERY TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING HUAITENG MACHINERY TECH
Filing Date
2026-04-08
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing vacuum drying equipment has a single clamping method in the production of carbon fiber impregnated cloth, resulting in low efficiency, incomplete solvent recovery, and unsuitability for vacuum explosion-proof environments, posing safety hazards and high maintenance costs.

Method used

Design a box-type internal rotary solvent recovery vacuum drying device. It adopts multiple sets of rotating shaft clamp assemblies for flipping motion. Combined with a vacuum drying pipeline system and a heating circulation system, it realizes solvent condensation recovery and temperature control. The clamps achieve reliable clamping through mechanical pre-clamping and internal and external pressure difference.

Benefits of technology

It achieves uniform drying of carbon fiber impregnated cloth in a vacuum explosion-proof environment, complete solvent recovery, strong clamping reliability, reduces equipment maintenance frequency, and improves production efficiency and environmental benefits.

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Abstract

This invention discloses a box-type internal rotary solvent recovery vacuum drying device, relating to the field of carbon fiber impregnation drying technology. It includes a vacuum drying chamber with at least three sets of rotating shafts, each set of shafts fixedly mounted with a clamp assembly. Each clamp assembly has upper and lower clamping working surfaces, each capable of holding a special tray for placing carbon fiber impregnated cloth. The rotating shafts are connected to a transmission mechanism, enabling the clamp assembly and the special tray to rotate within the chamber. A vacuum drying pipeline system is used to evacuate the vacuum drying chamber to a set negative pressure environment and condense and recover the volatile organic solvents. This invention achieves automatic mechanical clamping during rotation through a ring-shaped guide boss cooperating with a compression rod, and after vacuuming, the entire working surface is vacuum-clamped via a sealed cylinder piston.
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