Quickly-constructed single-water-pipe column heat insulation structure of steel rolling heating furnace and preparation method thereof

The steel rolling furnace column insulation structure, designed with multi-layer insulation materials and mortise and tenon joints, solves the problems of long construction time, poor insulation performance, and short service life, achieving rapid construction and high-efficiency insulation performance, and improving production efficiency.

CN117537616BActive Publication Date: 2026-05-29武汉钢铁有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
武汉钢铁有限公司
Filing Date
2023-11-27
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The existing water beams and column insulation structures for steel rolling heating furnaces have problems such as long construction time, large fluctuations in construction quality, poor insulation performance and short service life. Furthermore, some improvement solutions still have problems with insufficient high-temperature performance or insulation performance.

Method used

The design employs multiple layers of thermal insulation materials, including an aerogel thermal insulation coating, a nanoporous thermal insulation board layer, a fire-resistant fiber blanket layer, a lightweight high-strength mullite prefabricated component layer, and an infrared high emissivity thermal barrier coating. Combined with a mortise and tenon structure and a thermal expansion fastening compensation layer, metal anchors and metal fixing blocks are eliminated, and rapid construction is achieved through mortise and tenon splicing and a thermal expansion self-locking structure.

Benefits of technology

It improves the thermal insulation and high-temperature performance of the columns, shortens construction time, extends service life, reduces furnace energy consumption, eliminates problems of material thermal expansion mismatch and stress concentration damage, and improves production efficiency.

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    Figure CN117537616B_ABST
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Abstract

The application discloses a single-water-pipe stand column heat insulation structure of a rolling steel heating furnace which can be rapidly constructed and a preparation method thereof, and relates to the technical field of rolling steel heating furnace construction. The single-water-pipe stand column heat insulation structure of the rolling steel heating furnace which can be rapidly constructed comprises a single water-cooling steel pipe, and the outer side of the water-cooling steel pipe is wrapped with, from inside to outside, an aerogel heat insulation coating, a nano microporous heat insulation plate layer, a refractory fiber blanket layer, a thermal expansion fastening compensation layer, a lightweight high-strength mullite prefabricated part layer and an infrared high-emissivity thermal barrier coating. The single-water-pipe stand column heat insulation structure of the rolling steel heating furnace which can be rapidly constructed and the preparation method thereof have the advantages that the stand column heat insulation performance and high-temperature use performance are improved through the optimization design of the multilayer heat insulation materials based on different use temperature intervals, the tenon-and-mortise structure and the thermal expansion self-locking structure are jointly designed, the anchoring member and the metal fixing block are cancelled, the problems of material thermal expansion mismatch, stress concentration damage and heat island effect caused by the anchoring member and the metal fixing block are eliminated, and the single-water-pipe stand column heat insulation structure of the rolling steel heating furnace which can be rapidly constructed has the advantages of short construction time, excellent heat insulation performance, oxidation scale erosion resistance and strengthened furnace bottom radiation heat transfer.
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