CN104344711A - Split furnace cover - Google Patents
Split furnace cover Download PDFInfo
- Publication number
- CN104344711A CN104344711A CN201310353696.1A CN201310353696A CN104344711A CN 104344711 A CN104344711 A CN 104344711A CN 201310353696 A CN201310353696 A CN 201310353696A CN 104344711 A CN104344711 A CN 104344711A
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- bell
- furnace cover
- furnace
- core body
- prefabricated
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- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention provides a split furnace cover. The split furnace cover is composed of a furnace cover body and a detachable furnace cover center core body, wherein the furnace cover body is a chrome-corundum prefabricated member added with steel fibers; when the furnace cover core body is prefabricated, three electrode holes are reserved, the furnace cover body and the furnace cover core body are sealed by corundum castable, and three devices fixed with a furnace body are uniformly distributed on the furnace cover body. When the split furnace cover is used, the working capacity of all parts of the furnace cover can be maximized by replacing the furnace cover core body, waste is avoided, and continuous operation of smelting is promoted.
Description
Technical field
The present invention relates to one and be applied in metallurgical steel-making industry arc furnace cover, especially comprise the furnace lid of bell body and dismountable bell core body.
Background technology
Electric furnace steel making is using electric energy as main energy sources, uses three-phase alternating current or direct current.Electric furnace is made up of bell, furnace wall and furnace bottom.Bell can move, and bell is the spheric structure with electrode hole and exhaust smoke hole.Improve output for reducing power consumption, electric furnace also adopts heavy oil or oxygen blast to accelerate melting.Because in-furnace temperature is high, atmosphere changes greatly, furnace charge is generally cold conditions.Therefore, electric furnace liner and bell are often in the state of high temperature, slag corrosion and rapid heat cycle.And the production capacity of electric furnace is increased due to high power operation, but also make the thermic load of bell refractory material enlarge markedly simultaneously, so that bell service life can not be extended with improvement refractory material, the central area of the intercalative electrode of furnace lid is again the weak link of whole bell, the most easily damage, only have about 300 times service life, but the central area of usual intercalative electrode and furnace lid body are an entirety, integral replacing must be carried out, not only lose time, but also increase the cost of manufacturing enterprise.
Summary of the invention
The present invention solves its technical problem and is to provide a kind of detachable split type bell, and its portion in traditional furnace lid structure is two, independent prefabricated to the central area of intercalative electrode, and from the angle of mechanics, electricity
Stove furnace cover structure is reasonable in design, not only ensure that the normal operating of electric furnace, and simpler and more direct and convenient at replacing bell, and the duration significantly shortens, thus improves the service life of furnace lid entirety.
In order to solve the problems of the technologies described above, the present invention is made up of bell body, dismountable bell center core at bell, bell body is the pink fused alumina prefabricated component adding steel fibre, bell core body is when prefabricated, be reserved with three electrode holes, seal with corundum castable between bell body and bell core body, cause to prevent electrode collide water cooled cover and beat arc and breakdown.
Due under the state of high temperature, slag corrosion and rapid heat cycle, bell center core is more vulnerable to erosion than bell body, therefore the life-span is lower than bell body, when bell body and bell center core separately prefabricated, after bell center core is damaged completely, can directly change bell center core online, periphery bell body does not need to change, until again change when periphery bell body cannot work really.Seal with corundum castable between bell body and bell core body, thus prevent electrode collide water cooled cover to cause to beat arc and breakdown.The building by laying bricks or stones of prefabricated component is built by laying bricks or stones simple than adobe, the speed of building by laying bricks or stones is faster, decreases work on the spot amount, and improves efficiency.Each position of bell can being made to reach peak work capacity by changing bell core body in use, avoiding waste, and facilitate smelting continue carry out.
Detailed description of the invention
The present invention is to provide a kind of detachable split type furnace lid, be made up of bell body, dismountable bell center core, bell body is the pink fused alumina prefabricated component adding steel fibre, bell core body is when prefabricated, be reserved with three electrode holes, seal with corundum castable between bell body and bell core body, bell body is uniformly distributed three and body of heater stationary device.During installation, first bell body is installed, bell center core is installed again, seal with corundum castable between bell body and bell center core, when changing bell center core, first corundum castable is destroyed, bell center core is taken out, can directly change online, periphery bell body does not need to change, until again change when periphery bell body cannot work really.
Claims (1)
1. a split type bell, it is characterized in that: form primarily of hoisting bracket, annular holder, mass and Electric Drive parts, be made up of bell body, dismountable bell center core, bell body is the pink fused alumina prefabricated component adding steel fibre, bell core body is when prefabricated, be reserved with three electrode holes, seal with corundum castable between bell body and bell core body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310353696.1A CN104344711A (en) | 2013-08-08 | 2013-08-08 | Split furnace cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310353696.1A CN104344711A (en) | 2013-08-08 | 2013-08-08 | Split furnace cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104344711A true CN104344711A (en) | 2015-02-11 |
Family
ID=52500831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310353696.1A Pending CN104344711A (en) | 2013-08-08 | 2013-08-08 | Split furnace cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104344711A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108148943A (en) * | 2017-12-26 | 2018-06-12 | 石嘴山市宝马兴庆特种合金有限公司 | A kind of refining furnace |
| CN109068433A (en) * | 2018-09-11 | 2018-12-21 | 宜兴瑞泰耐火材料有限公司 | A kind of furnace of calcium carbide electrode seals |
| CN113913586A (en) * | 2021-09-27 | 2022-01-11 | 上海宝钢铸造有限公司 | Split type cast iron vacuum furnace cover |
-
2013
- 2013-08-08 CN CN201310353696.1A patent/CN104344711A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108148943A (en) * | 2017-12-26 | 2018-06-12 | 石嘴山市宝马兴庆特种合金有限公司 | A kind of refining furnace |
| CN109068433A (en) * | 2018-09-11 | 2018-12-21 | 宜兴瑞泰耐火材料有限公司 | A kind of furnace of calcium carbide electrode seals |
| CN109068433B (en) * | 2018-09-11 | 2023-10-20 | 宜兴瑞泰耐火材料有限公司 | Electrode sealing device of calcium carbide furnace |
| CN113913586A (en) * | 2021-09-27 | 2022-01-11 | 上海宝钢铸造有限公司 | Split type cast iron vacuum furnace cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150211 |