A device for rapid drying of cement precast products and a method for rapid drying thereof

By constructing a gradient temperature and humidity field with heat at the bottom and moisture at the top, and utilizing a rotating mechanism and a self-circulating temperature and humidity control component, the problem of uneven internal and external moisture migration during the curing of cement precast components was solved, achieving rapid and high-quality curing of cement precast components and improving production efficiency and product quality.

CN122275142APending Publication Date: 2026-06-26SHANDONG XINCHENG CONSTR ENG GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG XINCHENG CONSTR ENG GRP CO LTD
Filing Date
2026-05-25
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing precast concrete curing technologies cannot simultaneously meet the demands for high-quality curing and rapid drying, resulting in a tradeoff between production efficiency and product quality. Natural curing has a long cycle, steam curing equipment is expensive, hot air drying causes surface cracking, and microwave curing results in uneven internal heating.

Method used

The system employs a support cylinder, a bearing tray, a rotating mechanism, a curing hood, a displacement mechanism, a heating component, and a self-circulating temperature and humidity control component to construct a gradient temperature and humidity field with heat at the bottom and humidity at the top. The rotating mechanism drives the tray to rotate, and combined with the self-circulating temperature and humidity control component and the heating component, it achieves synchronous migration of moisture inside and outside the precast cement components. A non-powered water distributor is used to achieve water resource recycling.

Benefits of technology

It significantly shortens the curing cycle, improves production efficiency, reduces energy consumption, ensures the overall quality consistency and strength of precast components, avoids surface cracking, and achieves rapid and high-quality curing of cement precast components.

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Abstract

This invention relates to a rapid drying device and method for precast cement components, comprising a support cylinder, a bearing tray, a rotating mechanism, a support frame, two curing hoods, a displacement mechanism, a heating component, and a self-circulating temperature and humidity control component. A central groove is formed at the top center of the support cylinder, and the bearing tray is rotatably connected to the central groove via a sealed bearing. The edge of the bearing tray protrudes upward to form a water collection trough, in which the precast cement component is placed. The rotating mechanism is mounted on the support cylinder and drives the bearing tray to rotate around its own axis. This invention recovers the latent heat of vapor released during cement hydration, achieving a dual closed-loop circulation of heat and water resources. Utilizing the synergistic effect of the rotating bearing tray, bottom-up hot air, and top-rotating atomized water spray, a gradient temperature and humidity field with lower heat and upper humidity is constructed within the curing chamber. This synchronizes the migration rate of moisture inside and outside the precast component with the hydration reaction rate, significantly shortening the rapid drying and curing cycle.
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