Sleeve seal for electric furnace electrodes

A technology of sealing components and sealing components, which is applied to the sealing of engines, electric furnace heating, furnace components, etc., and can solve the problems of not being able to adapt to significant changes in electrode diameter, high cost, difficult inspection and maintenance, etc.

Active Publication Date: 2017-02-22
HATCH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this design is often costly, difficult to inspect and maintain, and cannot accommodate significant variations in electrode diameter

Method used

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  • Sleeve seal for electric furnace electrodes
  • Sleeve seal for electric furnace electrodes
  • Sleeve seal for electric furnace electrodes

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Embodiment Construction

[0040] In the description below, specific details are set forth in order to provide examples of claimed subject matter. However, the embodiments described below are not intended to define or limit the claimed subject matter. Those skilled in the art will recognize the many variations that are possible in specific embodiments within the scope of the claimed subject matter.

[0041] The first embodiment described below relates to a seal for sealing an electrode port in an electric furnace roof through which a vertically oriented electrode extends. It should be appreciated, however, that the seals described below may be applicable in other fields where sealing against substantially varying cylindrical surfaces is required and where there is relative movement between the seal and the cylindrical surface. It should also be appreciated that the surfaces are not necessarily cylindrical, nor are they necessarily vertical. However, the seals described below can be used with devices h...

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Abstract

A highly flexible sealing arrangement designed to seal high-temperature furnace ports, particularly the electrode port of an electric furnace. The seal comprises an annular support member fixed to a flexible sealing member and employs the use of a garter spring to uniformly apply the desired amount of seal compression. The arrangement and flexibility of the sealing member allows the seal to adapt itself to the wide range of operating and upset conditions that typically exist for a furnace electrode seal. Frictional wear on the seal may be greatly reduced as the design inherently allows for a much lower amount of seal compression to be applied, furthermore, the seal is able to move axially which can significantly reduce wear caused by electrode regulation.

Description

[0001] Cross References to Related Applications [0002] This application claims priority and benefit to US Provisional Patent Application No. 61 / 985,026, filed April 28, 2014, the contents of which are incorporated herein by reference. technical field [0003] The subject-matter of the present invention relates to electrode seals for sealing electrode ports of electric furnaces, and more particularly to electrode seals having a flexible sealing arrangement capable of following the axial movement of the electrodes while resisting the furnace harsh operating environment. Background technique [0004] Electric furnaces are often used in the metal industry for melting and smelting operations. A typical electric furnace provides a refractory lined enclosure capable of withstanding high temperatures in which the feed is melted by one or more cylindrical electrodes axially through a circular port in the roof to maintain proper depth for the melting operation. Once the electrode ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D11/10F16J15/22F16J15/56
CPCF27D11/10F16J15/028F16J15/065F16J15/104H05B7/12F16J15/0812F27D99/0073F27D2099/0081F16J15/22
Inventor S·D·哈力
Owner HATCH LTD
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