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Ceramic composite steel pipe

A composite steel pipe and ceramic technology, applied in the field of wear-resistant steel pipe manufacturing, can solve the problems of inconvenient installation and fixation of the wear-resistant pipe, difficult to effectively cover the ceramic lining, and difficulty in heat dissipation of the wear-resistant steel pipe, so as to improve the positioning speed and the connection firmness. , Improve the heat dissipation efficiency in the tube and improve the effect of effective coverage

Inactive Publication Date: 2018-11-23
江苏鑫都管业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention proposes a ceramic composite steel pipe, which solves the problems of difficult heat dissipation in the existing ceramic-lined wear-resistant steel pipe and inconvenient installation and fixing between wear-resistant pipes. The problem that the ceramic lining is difficult to effectively cover

Method used

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  • Ceramic composite steel pipe
  • Ceramic composite steel pipe
  • Ceramic composite steel pipe

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Such as Figure 1-Figure 2 As shown, the present invention provides a ceramic composite steel pipe, comprising a ceramic inner lining 1, a transition layer 2, and a stainless steel outer pipe 3. The transition layer 2 formed by the ceramic inner lining 1 through the thermite reaction is fixedly connected with the stainless steel outer pipe 3, and the stainless steel outer pipe 3 is fixedly connected. The inner wall of the outer tube 3 is fixed with several convex grooves 4, because the main materials of the corundum ceramic lining 1, the transition layer 2 and the stainless steel outer tube 3 are alumina, iron, and stainless steel respectively, and their thermal conductivity coefficients are high, so it is necessary to pass The convex groove 4 increases the heat exchange area between the outer steel pipe 3 and the transition layer 2, so as to further effectively improve the heat dissipation efficiency; one end of the convex groove 4 protrudes from the side of the stainle...

Embodiment 2

[0024] Such as image 3 As shown, when the present invention is in use, two ceramic composite steel pipes need to be directly welded and fixed at a certain angle. For this non-standard component, there must be a certain inner seam at the connection between the steel pipes, and there is no wear-resistant inner seam on the inner seam. Lining, and the fluid at the corner has a great impact on the inner seam, and the wear degree of the corner is greater, so it is necessary to cover the inner seam with a wear-resistant lining, and arrange the composite pipe below so that the protruding end of the convex groove 4 is upward, Clamp the wear-resistant rubber pad 15 on the protruding end of the convex groove 4, because the thickness of the wear-resistant rubber pad 15 is less than the thickness of the transition layer 2 and the ceramic lining 1, so the installed wear-resistant rubber pad 15 will be stuck in the inner seam, When the upper fluid stays, no matter how the angle of the fluid...

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Abstract

The invention relates to a ceramic composite steel pipe. The ceramic composite steel pipe comprises a ceramic lining, a transition layer and a stainless steel outer pipe. The ceramic lining is fixedlyconnected with the stainless steel outer pipe through the transition layer generated by reaction with a thermit. Multiple convex slots are fixedly formed on the inner wall of the stainless steel outer pipe. One end of each convex slot extends out of a corresponding side edge of the stainless steel outer pipe. The other end of each convex slot is located inside the stainless steel outer pipe, anda connection groove corresponding to a corresponding convex slot is formed between each convex slot and the corresponding side edge of the stainless steel outer pipe. Heat-exchange area between the steel pipe and the transition layer can be effectively increased by the convex slots; and meanwhile, improvement of firmness degree between the ceramic lining and an outer steel pipe is benefited by various fixing holes arranged in the convex slots. When the protruding convex slots and the internally-arranged connection grooves are used cooperatively, the location speed and connection firmness degree between each steel pipe can be further improved. For some non-standard components which need direction changing, wear-resistant rubber is fixed to the protruding convex slots; abrasion caused by inner cracks at steel pipe joints can be effectively avoided; and thus effective coverage of the wear-resistant lining is improved.

Description

technical field [0001] The invention relates to a ceramic composite steel pipe, which belongs to the technical field of wear-resistant steel pipe manufacturing. Background technique [0002] Steel pipe is a kind of parts widely used in fluid, powdery solid transportation, heat exchange, and manufacturing machinery. Compared with cast stone pipes and wear-resistant alloy pipes, ceramic composite pipes are lighter in weight, easy to transport and install, and lower in cost. Better wear resistance and corrosion resistance, therefore, longer service life and higher economic benefits. [0003] For electric power, metallurgy, mining, coal, chemical and other industries, as a pipeline for transporting abrasive granular materials such as sand, stone, coal powder, ash, molten aluminum, and corrosive media, high wear resistance, corrosion resistance, and heat resistance are required. Corundum ceramic-lined wear-resistant pipe is currently widely used in the above fields. Although the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/14F16L23/18F16L57/06F16L43/00F16L53/70
CPCF16L9/14F16L23/18F16L43/00F16L53/70F16L57/06
Inventor 潘爱军
Owner 江苏鑫都管业有限公司
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