Bottom ring for submerged arc furnace and manufacturing method thereof

A manufacturing method and bottom ring technology, which can be used in manufacturing tools, furnaces, electric furnace heating, etc., can solve the problems of labor-consuming, time-consuming, poor manufacturability, and increase production costs, so as to reduce production costs, ensure quality, and extend service life. Effect

Inactive Publication Date: 2013-03-27
姚会元
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Copper welding exhibits poor workmanship, labor and time-consuming, and increases production costs

Method used

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  • Bottom ring for submerged arc furnace and manufacturing method thereof
  • Bottom ring for submerged arc furnace and manufacturing method thereof
  • Bottom ring for submerged arc furnace and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] The bottom ring for the submerged arc furnace of the present invention is made of a closed metal shell with a cavity structure by integral casting, and specifically includes the bottom ring body 1. The cavity 11 is a water cooling chamber. Two ends of the main body 1 are provided with a water inlet 5 and a water outlet 6 , the cooling water enters through the water inlet 5 and flows out through the cavity 11 through the water outlet 6 . The upper end of the water inlet and outlet is extended section 12, and the extended section is made of the same material as the bottom ring body 1, and the joint part is threaded. Both ends of the bottom ring are provided with lugs 8 for installation and suspension, flanges 9 for sealing and fastening bolt holes 10 are provided on the top surface, and gaps 7 for the passage of electrode conductive fins are provided on the inner surface.

[0034] The bottom ring body 11 is connected by multiple pieces to form a circular ring around the e...

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PUM

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Abstract

The invention relates to a bottom ring for a submerged arc furnace and a manufacturing method thereof. The bottom ring comprises a bottom ring body with a cavity structure, wherein the bottom ring body is provided with a water inlet and a water outlet. The bottom ring is characterized in that the bottom ring body is cast by adopting an integral casting method; the upper ends of the water inlet and the water outlet are additionally provided with extending segments; the extending segments and the bottom ring body are made of same materials, and joint parts are in threaded connection. The bottom ring for the submerged arc furnace, which is disclosed by the invention, is cast into an integral structure by adopting an integral casting process without welding seams or water leakage and does not need to be maintained, thereby prolonging the service life, reducing the production cost and achieving the safety guarantee; and when the bottom ring is manufactured, the water inlet and the water outlet are utilized as a clearance hole and an air hole, no process hole is additionally arranged, a cavity is formed by adopting a sand core which is easy to disperse, and a gas generated in the sand core during pouring is discharged through the water inlet and the water outlet by utilizing a vacuum pumping method so that liquid metal can be stably operated in the pouring and solidifying process, therefore the quality of a product is ensured.

Description

technical field [0001] The invention relates to a bottom ring for a submerged arc furnace and a manufacturing method thereof. Background technique [0002] Bottom ring is a part to protect the combined handle of the submerged arc furnace electrode. It is located at the lower end of the graphite electrode, surrounds the electrode, and is close to the surface of the hot molten pool. It is usually made of copper and is a vulnerable part. The role of the bottom ring on the combined electrode holder is to hold and seal all the parts around the electrode, so that the conductive system can operate reliably and will not be damaged prematurely by the furnace gas, so the role is very important. [0003] The ambient temperature of the bottom ring is as high as 1800 degrees, and the interior needs to be cooled by water to resist the erosion of high temperature and furnace gas pressure. The main forms of damage are ablation deformation and water leakage. Ablation will reduce the servic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D11/10B22C9/24B22C9/02
Inventor 姚会元
Owner 姚会元
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