Refractory lining pipeline and refractory lining pipeline assembly

By designing the uneven layer structure and staggered welds of the refractory lined pipe, combined with the use of groove rings and slurry drain pipes, the problem of insufficient docking sealing of the refractory lined pipes is solved, and efficient sealing is achieved Effective and long-lived piping system.

CN222458684UActive Publication Date: 2025-02-11SINOSTEEL EQUIP & ENG
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Patent Information

Application Number
CN202420390088.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-02-29
Publication Date
2025-02-11
Estimated Expiration
2034-02-28

AI Technical Summary

Technical Problem

In the metallurgy and chemical fields, there are often sealing defects when the butt of the refractory lined pipes, causing high-temperature and high-pressure gas to pass through the weld position, causing the pipeline to overheat, burn through and gas leakage, and causing safety accidents.

Method used

By designing the height of the insulation and working retardant layer of the retardant lined pipe is not flushed, the welds of adjacent pipes are arranged interlaced to form bent welds, ensuring sealing effect, and setting grooves at the docking point Ring and slurry pipe drain pipes to enhance connection stability.

Benefits of technology

It effectively solves the problem of insufficient butt sealing of the refractory inner lined pipe, avoids air leakage at the weld position, extends the service life of the pipe, and improves the safety and production efficiency of the entire pipe system.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222458684U_ABST
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Abstract

The utility model discloses a refractory material lining pipeline assembly and a refractory material lining pipeline, the refractory material lining pipeline comprises a metal shell and a refractory material lining layer, the refractory material lining layer is cylindrical and is embedded in the inner wall of the metal shell, and the refractory material lining layer sequentially comprises a heat preservation refractory material layer and a working refractory material layer from the outer ring to the inner ring; in the axial direction of the metal shell, the first end of the heat preservation refractory material layer and the first end of the working refractory material layer are not flush in height, and the heat preservation refractory material layer can be in butt joint with the second end of the heat preservation refractory material layer and the second end of the working refractory material layer of the adjacent refractory material lining pipeline. The first end of the heat preservation refractory material layer of the refractory material lining pipeline and the first end of the working refractory material layer of the refractory material lining pipeline are arranged to be uneven and are in butt joint with the adjacent refractory material lining pipeline, so that the welding seam of the heat preservation refractory material layer and the welding seam of the working refractory material layer of the adjacent refractory material lining pipeline are not located on the same straight line, namely the two welding seams are arranged in a staggered mode; by means of the structure, the welding seam of the adjacent refractory lining pipelines is a bent welding seam instead of a through seam, the sealing effect is guaranteed, the sealing defect of butt joint of the refractory lining pipelines is fundamentally overcome, the problems of pipeline redness and burnthrough caused by air leakage and air leakage at the welding seam position are solved, the overall service life of the internal refractory and the pipeline is prolonged, and the service life of the pipeline is prolonged. Therefore, the service life of the whole pipe system is prolonged, and a favorable guarantee is provided for safe production of enterprises.
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