CN2600774Y - Brick type electric arc furnace lid - Google Patents
Brick type electric arc furnace lid Download PDFInfo
- Publication number
- CN2600774Y CN2600774Y CN 02270234 CN02270234U CN2600774Y CN 2600774 Y CN2600774 Y CN 2600774Y CN 02270234 CN02270234 CN 02270234 CN 02270234 U CN02270234 U CN 02270234U CN 2600774 Y CN2600774 Y CN 2600774Y
- Authority
- CN
- China
- Prior art keywords
- brick
- electric arc
- utmost point
- arc furnace
- heart piece
- 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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- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The utility model disclose a furnace lid of the bricking-up electric-arc furnace, and is composed of a electrode core block (1), the electrode holes (2), the firebricks (3), and a steel water-cooling furnace lid (4). The utility model is mainly applied for the steel-making electric-arc furnace. The herringbone electrode core block (1) is arranged at the center position of the furnace lid of the electric-arc furnace, the side face of the electrode core block (1) is provided with three concave circle arcs, the three concave circle arcs and the three circle arcs bricked-up with the three firebricks (3) form three same diameter electrode holes (2). Compared with the prior art, the utility model furnace lid has the advantages of good integral performance, synchronous and smooth corrosion, convenient bricking-up, and more than double times of the service-life as the traditional bricking-up electric-arc furnace.
Description
The utility model relates to the annex of electric arc furnaces, particularly relates to the improvement of brick layed electric arc furnaces bell structure.
At present, refine the used brick layed electric arc furnaces bell of firm electric arc furnaces, because of it all is to build by laying with refractory brick to form, and will be at electrode hole, charging aperture or explosionproof hole periphery lining water-cooled circle.When not only building by laying, this brick layed electric arc furnaces bell wastes time and energy, the loss of cutting brick is also very big, and at brick layed bell central part, because the effect of three electrodes, cause the central part temperature high especially, corrode seriously, in use the roof brick at this position at first falls sheet and peels off or fall the brick top of collapsing, directly affect the service life of bell, increase the firm cost of refining of steel mill.
The purpose of this utility model is the above-mentioned defective at existing brick layed bell, particularly short service life in order to overcome the brick layed bell, easily falling sheet peels off, fall the brick top problem of collapsing, a kind of long service life is provided, corrode evenly synchronously, build by laying bricks or stones conveniently, a kind of brick layed electric arc furnaces bell of high temperature resistant utmost point heart piece is arranged at the bell middle position.
The purpose of this utility model is achieved in that this brick layed electric arc furnaces bell is to be made of utmost point heart piece, electrode hole, refractory brick, steel water cooled cover circle.Whole electric arc furnaces bell shape is dome shape, and periphery has steel water cooled cover circle, the have the capability of doing sth utmost point heart piece of high temperature of its core.Utmost point heart piece is herringbone, and it is to select for use material such as high alumina or corundum, aluminium oxide powder, fine silica 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.There are three matrix circular arcs the utmost point heart piece side that is made, and arrange by triangle in the center of circle of these three matrix circular arcs, and distance of center circle separates not equal.The center of circle of each circular arc also is the center of each electrode hole, and the diameter of each electrode hole also is identical.The resistant to elevated temperatures utmost point heart piece of making is placed on spherical mould central upper portion position, has determined the center of electrode hole, build by laying three brace summers respectively, utmost point heart piece and steel water cooled cover circle are fixed together with refractory brick.Circular arc beyond the utmost point heart piece is respectively based on three circular arcs on the utmost point heart piece, with the Kong Xinwei center of each electrode hole, builds by laying with refractory brick, and three circular holes that the diameter of composition is identical are three electrode holes.Build by laying by chevron shaped filling respectively with refractory brick in space beyond electrode hole, makes refractory brick, utmost point heart piece, the common block of steel water cooled cover circle be one, can go up stove after the demoulding and use.
The utility model has the advantages that: the overall performance of this bell is good, and energy-saving material-saving corrodes synchronously evenly, build by laying bricks or stones conveniently, and no flake-off sheet or fall the brick top phenomenon of collapsing, be more than the twice of traditional brick layed bell service life.
Accompanying drawing is a vertical view of the present utility model.
Make the utility model with reference to accompanying drawing.This brick layed electric arc furnaces bell is made of utmost point heart piece 1, electrode hole 2, refractory brick 3, steel water cooled cover circle 4.Utmost point heart piece 1 is to select for use high alumina or materials such as corundum, aluminium oxide powder, fine silica 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.Utmost point heart piece 1 is herringbone, and three matrix circular arcs are arranged on its side, and the center of circle of these three matrix circular arcs is respectively on three angles of equilateral triangle, and distance of center circle equates respectively.The center of circle of these three circular arcs also is the center of electrode hole 2, and the diameter of each electrode hole also is identical.The resistant to elevated temperatures utmost point heart piece of making 1 is placed on spherical mould central upper portion position, at first determines the position of good electrode hole 2, secondly build by laying brace summer with refractory brick 3.With brace summer utmost point heart piece 1 and steel water cooled cover circle 4 are fixed together, guarantee that bell reaches the camber of regulation.Again based on the circular arc on utmost point heart piece 1 side, center with electrode hole 2 is the center of circle, with refractory brick 3 by the chevron shaped circular arc of electrode hole 2 remainders and the remaining space between utmost point heart piece 1 and the steel water cooled cover circle 4 built by laying, can form three electrode holes 2 that diameter is identical so respectively, and steel water cooled cover circle 4 is built with utmost point heart piece 1 by refractory brick 3 and is one, and finally demould gets final product.When laying bricks, chevron shaped wanting directly, necessary wedging between brick and the brick, brickwork joint surpasses 2mm.
Claims (3)
1, a kind of brick layed electric arc furnaces bell is made of utmost point heart piece (1), electrode hole (2), refractory brick (3), steel water cooled cover circle (4), it is characterized in that the middle position of brick layed electric arc furnaces bell has resistant to elevated temperatures herringbone utmost point heart piece (1).
2, a kind of brick layed electric arc furnaces bell according to claim 1 is characterized in that on utmost point heart piece (1) side three matrix circular arcs being arranged, and the center of circle of these three matrix circular arcs is respectively on leg-of-mutton three angles, and distance of center circle equates respectively.
3, a kind of brick layed electric arc furnaces bell according to claim 1 is characterized in that three matrix circular arcs on utmost point heart piece (1) side constitute three electrode holes (2) that diameter is identical jointly with three circular arcs that are built into refractory brick (3) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02270234 CN2600774Y (en) | 2002-10-21 | 2002-10-21 | Brick type electric arc furnace lid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02270234 CN2600774Y (en) | 2002-10-21 | 2002-10-21 | Brick type electric arc furnace lid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2600774Y true CN2600774Y (en) | 2004-01-21 |
Family
ID=34150333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02270234 Expired - Fee Related CN2600774Y (en) | 2002-10-21 | 2002-10-21 | Brick type electric arc furnace lid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2600774Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105890342A (en) * | 2016-04-12 | 2016-08-24 | 安徽马钢耐火材料有限公司 | Repair method for etched ignition lost electric-arc furnace lid |
| CN108548421A (en) * | 2018-04-28 | 2018-09-18 | 铁岭龙鑫钛业新材料有限公司 | A kind of ferrotitanium dispersing arc furnace cover and preparation method thereof |
-
2002
- 2002-10-21 CN CN 02270234 patent/CN2600774Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105890342A (en) * | 2016-04-12 | 2016-08-24 | 安徽马钢耐火材料有限公司 | Repair method for etched ignition lost electric-arc furnace lid |
| CN105890342B (en) * | 2016-04-12 | 2018-06-08 | 瑞泰马钢新材料科技有限公司 | The restorative procedure for losing arc furnace cover is burnt in a kind of etch |
| CN108548421A (en) * | 2018-04-28 | 2018-09-18 | 铁岭龙鑫钛业新材料有限公司 | A kind of ferrotitanium dispersing arc furnace cover and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |