CN201476534U - Cover for electric arc furnace - Google Patents
Cover for electric arc furnace Download PDFInfo
- Publication number
- CN201476534U CN201476534U CN2009202258065U CN200920225806U CN201476534U CN 201476534 U CN201476534 U CN 201476534U CN 2009202258065 U CN2009202258065 U CN 2009202258065U CN 200920225806 U CN200920225806 U CN 200920225806U CN 201476534 U CN201476534 U CN 201476534U
- Authority
- CN
- China
- Prior art keywords
- water cooled
- central block
- cover
- electric arc
- brick
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Vertical, Hearth, Or Arc Furnaces (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The utility model discloses a cover for an electric arc furnace. The cover comprises a water cooled furnace cover ring (1), a refractory brick (2) and a center block (3), wherein the refractory brick (2) and the center block (3) are arranged inside the water cooled furnace cover ring (1), and the center block (3) is arranged at the center of the water cooled furnace cover ring (1) and is provided with electrode holes (4). The cover is characterized in that three supporting beams (5) are arranged between the center block (3) and the water cooled furnace cover ring (1), three elliptic electrode holes (4) sharing the same shape are arranged on the center block (3), and insert bricks (6) are embedded in the electrode holes (4). The size of the electrode holes can be changed without external mechanical force, thereby avoiding a series of problems caused by oversize or undersize electrode holes. The cover for an electric arc furnace is fast in installation and can increase working efficiency and prolong service life thereof.
Description
Technical field
The utility model relates to a kind of smelting electric arc furnaces auxiliary equipment, relates in particular to a kind of electric arc furnaces bell.
Background technology
At present, the bell of steel-making single-phase DC electric arc furnaces, steel-making three-phase ac electric arc furnace, bell for brick layed, be to adopt refractory brick to build by laying to form, and to add the water cooled cover circle at the periphery of electrode hole, charging aperture or explosionproof hole, its weak point is: the bell that uses on the electric arc furnaces of existing structure is not only wasted time and energy when building by laying, and occurs the roof brick phenomenons such as top that drop, collapse when building by laying easily, has a strong impact on the service life of bell.In addition, because the central part at bell is provided with three electrodes, the temperature of central part is higher, corrodes seriously, so generally at centre mounting center piece, effect is in the working region of electrode, prevent to rob between electrode and the bell cooled plate arc and cause that the water-cooled part leaks because the central block poor working environment, consume fast, and if the electrode hole aperture on the central block of bell excessive, refractory thickness diminishes, and understands reduction of service life; If the aperture of electrode hole is too little, when electrode shakes in transmission process, can touches refractory material and cause electrode non-conductive and fracture, so it directly influences the service life of bell.And the central block that uses on the existing bell is difficult for accurately fixing in the position when mounted, so the phenomenon that electrode and electrode hole are difficult to aim at usually occurs, usually need just can reach the purpose of calibration by the portion size that mechanical external force changes electrode hole, can't free adjustment locate, so use extremely inconvenient with quick.
Summary of the invention
It is a kind of simple in structure that the purpose of this utility model is to provide, and builds by laying conveniently, and bell is electrode hole and electrode accurate positioning in installing and using process, thereby can improve installation effectiveness, the electric arc furnaces bell that can effectively increase the service life.
In order to reach above purpose, the technical scheme that the utility model adopted is: this electric arc furnaces bell, comprise that water cooled cover circle, refractory brick and central block constitute, the water cooled cover circle is made by steel material, refractory brick and central block are arranged on the inside of water cooled cover circle, central block is positioned at the centre of water cooled cover circle, central block is provided with electrode hole, it is characterized in that: between central block and water cooled cover circle, be provided with three brace summers, three oval-shaped electrode holes that shape is identical are set on central block, in electrode hole, are inlaid with the cover brick.
Described central block is herringbone structure, and it is to select for use high alumina or raw materials such as corundum, aluminium oxide powder, high-alumina refractory cement and steel fibre to adopt vibratory drilling method vibration moulding in mould, the demoulding after the high temperature preliminary treatment get final product.
Described electrode hole is built into refractory brick respectively, be the center with the central block during making, build by laying earlier three brace summers respectively with refractory brick, then central block and water cooled cover circle are fixed together, build by laying by herringbone respectively by refractory brick in zone between central block and the water cooled cover circle, thereby the assurance overall performance corrodes evenly, builds by laying conveniently.
Described cover brick is oval, and the middle part is provided with the hole.
The beneficial effects of the utility model are: the central block by herringbone structure can make the overall performance of bell good, corrodes evenly, builds by laying conveniently, does not have to peel off or fall the brick top phenomenon of collapsing, thereby can increase the service life; By in electrode hole, being inlaid with the cover brick, can make bell in installation process, regulate the position of central block by the cover brick, thereby can come regulating sleeve brick and gaps between electrodes according to the diverse location of electrode, easy to use, and need not can change the size of electrode hole by mechanical external force by this structure, and avoided because of the oversize or too small a series of problems that cause of electrode hole, install rapidly, not only can increase work efficiency, and can improve service life.
Description of drawings
Fig. 1 is a structure schematic top plan view of the present utility model.
Fig. 2 is that the structure of the utility model cover brick is analysed and observe enlarged diagram.
The specific embodiment
Make the utility model with reference to accompanying drawing 1,2.This electric arc furnaces bell, comprise that water cooled cover circle 1, refractory brick 2 and central block 3 constitute, water cooled cover circle 1 is made by steel material, refractory brick 2 and central block 3 are arranged on the inside of water cooled cover circle 1, central block 3 is positioned at the centre of water cooled cover circle 1, and central block 3 is provided with electrode hole 4, it is characterized in that: be provided with three brace summers 5 between central block 3 and water cooled cover circle 1, three oval-shaped electrode holes 4 that shape is identical are set on central block 3, in electrode hole 4, are inlaid with cover brick 6.
Described central block 3 is herringbone structure, it is to select for use high alumina or raw materials such as corundum, aluminium oxide powder, high-alumina refractory cement and steel fibre to adopt vibratory drilling method vibration moulding in mould, the demoulding after the high temperature preliminary treatment get final product, can be high temperature resistant by this structure, and can make the overall performance of bell good, and corrode evenly, build by laying conveniently, do not have and to peel off or fall the brick top phenomenon of collapsing, thereby can prolong the service life of electric arc furnaces bell.
Described electrode hole 4 is built into refractory brick respectively, be the center with central block 3 during making, build by laying earlier three brace summers 5 respectively with refractory brick, then central block 3 and water cooled cover circle 1 are fixed together, build by laying by herringbone respectively by refractory brick 2 in zone between central block 3 and the water cooled cover circle 1, thereby the assurance overall performance corrodes evenly, builds by laying conveniently.
Described cover brick 6 is oval; the middle part is provided with the hole; can move the position of overlapping brick 6 by suspender when mounted and regulate central block 3 and gaps between electrodes; guarantee not touch normally rocking in the scope of electrode, easy to use, need not can change the size of electrode hole 4 by mechanical external force by this structure; avoided because of the electrode hole 4 oversize or too small a series of problems that cause; install rapidly, not only can increase work efficiency, and can improve service life.
The utility model is simple in structure, and is easy to use, and bell is electrode hole and electrode accurate positioning in installing and using process, can improve installation effectiveness, and can increase the service life.
Claims (2)
1. electric arc furnaces bell, comprise that water cooled cover circle (1), refractory brick (2) and central block (3) constitute, refractory brick (2) and central block (3) are arranged on the inside of water cooled cover circle (1), central block (3) is positioned at the centre of water cooled cover circle (1), central block (3) is provided with electrode hole (4), it is characterized in that: between central block (3) and water cooled cover circle (1), be provided with three brace summers (5), three oval-shaped electrode holes (4) that shape is identical are set on central block (3), in electrode hole (4), are inlaid with cover brick (6).
2. electric arc furnaces bell according to claim 1 is characterized in that described central block (3) is herringbone structure; Described cover brick (6) is oval, and the middle part is provided with the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202258065U CN201476534U (en) | 2009-08-31 | 2009-08-31 | Cover for electric arc furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202258065U CN201476534U (en) | 2009-08-31 | 2009-08-31 | Cover for electric arc furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201476534U true CN201476534U (en) | 2010-05-19 |
Family
ID=42412781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202258065U Expired - Fee Related CN201476534U (en) | 2009-08-31 | 2009-08-31 | Cover for electric arc furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201476534U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374785A (en) * | 2011-10-21 | 2012-03-14 | 大连华锐股份有限公司 | Furnace cover device used for semi-closed submerged arc furnace |
| CN113390265A (en) * | 2021-06-29 | 2021-09-14 | 上海电气上重铸锻有限公司 | Prefabricated member for water-cooled furnace cover center of ultrahigh-power electric arc furnace and material thereof |
| CN115466819A (en) * | 2022-09-01 | 2022-12-13 | 中冶陕压重工设备有限公司 | Electric arc furnace heat preservation furnace cover, manufacturing mold and manufacturing method |
-
2009
- 2009-08-31 CN CN2009202258065U patent/CN201476534U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374785A (en) * | 2011-10-21 | 2012-03-14 | 大连华锐股份有限公司 | Furnace cover device used for semi-closed submerged arc furnace |
| CN102374785B (en) * | 2011-10-21 | 2013-04-10 | 大连华锐重工集团股份有限公司 | Furnace cover device used for semi-closed submerged arc furnace |
| CN113390265A (en) * | 2021-06-29 | 2021-09-14 | 上海电气上重铸锻有限公司 | Prefabricated member for water-cooled furnace cover center of ultrahigh-power electric arc furnace and material thereof |
| CN115466819A (en) * | 2022-09-01 | 2022-12-13 | 中冶陕压重工设备有限公司 | Electric arc furnace heat preservation furnace cover, manufacturing mold and manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20100831 |