Arc Furnace Bottom Construction

US2019301802A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2019301802-A1
Application numberUS-201716307235-A
CountryUS
Kind codeA1
Filing dateJun 7, 2017
Priority dateJun 7, 2016
Publication dateOct 3, 2019
Grant date

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

An arc furnace bottom construction for maintaining the outer surface temperature of the bottom construction essentially at least on the lower part of the arc furnace essentially close to the temperature surrounding the arc furnace. The bottom construction contains at least two constructions to be cooled and being positioned to each other in different heights seen from the side view.

First claim

Opening claim text (preview).

1 . An arc furnace bottom construction for maintaining an outer surface temperature of the arc furnace bottom construction at least at a lower part of an arc furnace essentially close to a temperature surrounding the arc furnace, wherein the bottom construction contains at least two separate constructions to be cooled and positioned with respect to each other at different heights seen from a side view, the constructions installed in connection with a supporting framework of the arc furnace. 2 . The arc furnace bottom construction according to claim 1 , wherein the separate constructions of the bottom construction are at different heights and establish to each other an intermediate space, where a cooling medium is conducted. 3 . The arc furnace bottom construction according to claim 1 , wherein a construction part of separate plate-like parts is established to the bottom construction of the arc furnace on a middle level of the bottom construction seen from the side view, and wherein the separate plate-like parts are installed at a distance from each other. 4 . The arc furnace bottom construction according to claim 1 , wherein, for conducting a cooling medium to the bottom construction, an external jacket of the arc furnace is provided with at least one inlet and at least one outlet. 5 . The arc furnace bottom construction according to claim 4 , wherein there are the same number of both inlets and outlets. 6 . The arc furnace bottom construction according to claim 4 , wherein the at least one inlet for the cooling medium is provided with members for distributing of the cooling medium and for adjusting an amount of the cooling medium between different parts of the bottom construction. 7 . The arc furnace bottom construction according to claim 2 , wherein in the intermediate space established between the constructions at different heights at least one cooling element where the cooling medium is conducted. 8 . The arc furnace bottom construction according to claim 7 , wherein the cooling medium to be conducted into the intermediate space and into the cooling element are of the same form. 9 . The arc furnace bottom construction according to claim 7 , wherein the cooling medium to be conducted into the intermediate space and into the cooling element are of a different form. 10 . The arc furnace bottom construction according to claim 2 , wherein a construction part of separate plate-like parts is established to the bottom construction of the arc furnace on a middle level of the bottom construction seen from the side view, and wherein the separate plate-like parts are installed at a distance from each other. 11 . The arc furnace bottom construction according to claim 2 , wherein, for conducting a cooling medium to the bottom construction, an external jacket of the arc furnace is provided with at least one inlet and at least one outlet. 12 . The arc furnace bottom construction according to claim 3 , wherein, for conducting a cooling medium to the bottom construction, an external jacket of the arc furnace is provided with at least one inlet and at least one outlet.

Assignees

Inventors

Classifications

  • incorporating cooling arrangements · CPC title

  • Hearths · CPC title

  • F27B3/24Primary

    Cooling arrangements · CPC title

  • F27D9/00Primary

    Cooling of furnaces or of charges therein (casings, linings, walls or roofs incorporating cooling arrangements F27D1/12) · CPC title

  • F27B3/085Primary

    Arc furnaces · CPC title

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Frequently asked questions

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What does patent US2019301802A1 cover?
An arc furnace bottom construction for maintaining the outer surface temperature of the bottom construction essentially at least on the lower part of the arc furnace essentially close to the temperature surrounding the arc furnace. The bottom construction contains at least two constructions to be cooled and being positioned to each other in different heights seen from the side view.
Who is the assignee on this patent?
Outokumpu Oy
What technology area does this patent fall under?
Primary CPC classification F27B3/24. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Thu Oct 03 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).