Uniform heating device for polyurethane modified asphalt production

By using a combination of agitation, conduction, and radiation heating in a mixing tank during the production of polyurethane modified asphalt, the problems of low heating efficiency and poor temperature uniformity were solved, achieving rapid and uniform heating and efficient mixing, thus improving product performance.

CN224388708UActive Publication Date: 2026-06-23JIANGSU EASTTRANS INTELLIGENT CONTROL TECH GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU EASTTRANS INTELLIGENT CONTROL TECH GRP CO LTD
Filing Date
2025-06-20
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The current production process of polyurethane modified asphalt suffers from low heating efficiency and poor temperature uniformity, making it difficult to transfer heat effectively. This results in localized overheating or underheating of the asphalt, affecting the fusion efficiency between the asphalt and the polyurethane modifier and the stability of product performance during the modification process.

Method used

The system employs a combination of agitation, conductive heating, and radiant heating mechanisms within the mixing tank. By using agitation with a stirring rod, heat transfer oil conduction, and infrared radiation heating, it achieves uniform heating of the asphalt.

Benefits of technology

It improves heat transfer efficiency, eliminates heating dead zones, enhances the mixing uniformity of asphalt and modifiers and the stability of product performance, and shortens heating time.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of asphalt production, especially a kind of even heating device for polyurethane modified asphalt production, including, stirring bucket, for accommodating polyurethane modified asphalt;Agitating mechanism is set to the inside of stirring bucket, for stirring material, scrape the sidewall and bottom surface of stirring bucket;Conduction heating mechanism, it is around to set in the outside of stirring bucket, the inside of stirring bucket is heated by heat conduction oil conduction;And, radiation heating mechanism, the radiation heating mechanism is installed in the bottom of stirring bucket, the inside of stirring bucket is heated by infrared radiation, the utility model is guided to the heat conduction oil to be folded type path flow by folding type deflector, pass through turbulent disturbance and extend heat transfer path, so that heat is fully transferred, the heat transfer efficiency of heat conduction oil and stirring bucket wall is greatly improved, and the closed loop system of heat conduction oil furnace and circulating pump ensures that heat is continuously supplied and transported, so that heat transfer efficiency is greatly improved.
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