CN202393199U - Electric arc furnace - Google Patents
Electric arc furnace Download PDFInfo
- Publication number
- CN202393199U CN202393199U CN2011204953658U CN201120495365U CN202393199U CN 202393199 U CN202393199 U CN 202393199U CN 2011204953658 U CN2011204953658 U CN 2011204953658U CN 201120495365 U CN201120495365 U CN 201120495365U CN 202393199 U CN202393199 U CN 202393199U
- Authority
- CN
- China
- Prior art keywords
- heater
- furnace body
- electric arc
- fire door
- door
- 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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Abstract
The utility model belongs to the field of ferrous metallurgy and in particular relates to an electric arc furnace, wherein the electric arc furnace comprises a furnace body built by using refractory bricks and a door on the furnace body; the furnace body at the door location is thicker than any other parts of the furnace body; the inner wall of the furnace body at the door is built by using the refractory bricks for the door; a refractory brick for the door is thicker than the refractory bricks for the furnace body at other locations; as the furnace body at the door location is thicker than any other parts of the furnace body, impact of oxygen and molten steel to the furnace wall at the door location is reduced for oxygen blowing and fluxing; meanwhile, high-temperature radiation of electric arcs to the furnace body is retarded; the service life of the electric arcs is increased; the time and cost for maintaining or replacing the electric arc furnace is reduced; and the production efficiency is improved. The application of refractory bricks for the door with larger thickness brings benefits to building of the inner wall of the furnace body, reduction of the building time and labor intensity; and the electric arc furnace is suitable for popularization and application on the field of ferrous metallurgy.
Description
Technical field
The utility model belongs to the Ferrous Metallurgy field, is specifically related to a kind of electric arc furnaces.
Background technology
At present, along with electric arc technology and development of electric power industry, electric arc furnaces generally is used for steel mill and smelts.Electric arc furnaces is high melt ore and the metal that utilizes electrode arc to produce, and energy was very concentrated when gas discharge formed electric arc, and arc district temperature is more than 3000 ℃.For smelting metal, electric arc furnaces is bigger than other converter technological flexibilities, can remove impurity such as desulfuration, phosphorus effectively, and furnace temperature is controlled easily, and occupation area of equipment is little, is suitable for the melting electric-arc furnace steelmaking of superior alloy steel.When using electric arc furnaces, the fire door position is its main workspace, skims, flows automatically the technological process such as flux of slag, oxygen blast and all operate in the fire door position; Electrode is nearer relatively mutually with A for body of heater, the especially fire door of damage fire door position easily, makes the refractory brick at fire door place and fire door water tank burnt by the arclight of electrode easily;, and after firebrick loss, the high temperature of electric arc can directly carry out scaling loss to the furnace shell steel plate; Destroy the overall performance of body of heater; Cause body of heater to damage, reduced furnace life, and be difficult to repair.Influence equipment safety operation, increased operator's labour intensity, also increased cost simultaneously.
The utility model content
The utility model technical problem to be solved is: a kind of electric arc furnaces that can improve service life is provided.
The technical scheme that realizes the purpose employing of the utility model is: a kind of electric arc furnaces comprises by refractory brick and builds the body of heater that forms by laying bricks or stones and be arranged on the fire door on the body of heater that the wall thickness of fire door position body of heater is greater than the wall thickness of other positions of body of heater.
Further be, the inwall of said fire door position body of heater adopts fire door refractory brick to build by laying bricks or stones, and the thickness of said monolithic fire door refractory brick is greater than the thickness of the body of heater refractory brick of other positions.
Further be the thick 100～200mm of wall thickness of other positions of wall ratio body of heater of said fire door position body of heater.
The beneficial effect of the utility model is: because the wall thickness of fire door position is greater than the wall thickness of other positions of body of heater; Oxygen and molten steel have been reduced when oxygen blast is fluxed to the impact of furnace wall, fire door position; Also slowed down simultaneously the hyperthermia radiation of electric arc to body of heater; Increase the service life of electric arc furnaces, reduced the time and the cost of maintenance or replacing electric arc furnaces, improved production efficiency.The thickness of said monolithic fire door refractory brick is greater than the thickness of the body of heater refractory brick of other positions, helps the building by laying bricks or stones of inboard wall of furnace body reduced the time of building by laying bricks or stones and labour intensity.
Description of drawings
Fig. 1 is a prior art plan structure sketch map;
Fig. 2 is the utility model plan structure sketch map.
Mark among the figure: body of heater 1, refractory brick 2, fire door refractory brick 2.1, body of heater refractory brick 2.2, fire door 3.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further explanation.
The utility model belongs to the Ferrous Metallurgy field, is specifically related to a kind of electric arc furnaces.This electric arc furnaces comprises by refractory brick 2 and builds the body of heater 1 that forms by laying bricks or stones and be arranged on the fire door 3 on the body of heater 1 that the wall thickness of fire door 3 position bodies of heater 1 is greater than the wall thickness of body of heater 1 other positions.
Because extending to form convexity to body of heater 1 center, the fire door refractory brick 2.1 that build by laying bricks or stones fire door 3 positions makes the wall thickness of the wall thickness of fire door 3 position bodies of heater 1 greater than body of heater 1 other positions; Oxygen and molten steel have been reduced when oxygen blast is fluxed to the impact of fire door 3 position bodies of heater 1 inwall; Also slowed down simultaneously the hyperthermia radiation of electric arc to body of heater 1; Increase the service life of electric arc furnaces, reduced the time and the cost of maintenance or replacing electric arc furnaces, improved production efficiency.
In order to increase the thickness of fire door 3 position bodies of heater 1 furnace wall, can adopt 2.2 splicings of fritter body of heater refractory brick or fire door refractory brick 2.1 to build by laying bricks or stones, if but the form that adopts fritter body of heater refractory brick 2.2 to splice; Increase the difficulty of building by laying bricks or stones, be difficult to hold the splicing size when splicing, and needed to produce the body of heater refractory brick 2.2 of different size; Increase the cost input; Simultaneously, spliced body of heater 1 intensity is low, collapses easily; As preferably; Body of heater 1 inwall of the utility model fire door position adopts fire door refractory brick 2.1 to build by laying bricks or stones, and the thickness of said monolithic fire door refractory brick 2.1 has guaranteed the thickness of fire door 3 position bodies of heater greater than the thickness of the body of heater refractory brick 2.2 of other positions.This fire door refractory brick 2.1 is easy to process, but cost is practiced thrift in large-scale production, need not splice when building by laying bricks or stones, has reduced the time of building by laying bricks or stones, and the intensity of the fire door refractory brick 2.1 of monoblock is high, has effectively guaranteed service life.
In order to guarantee the thickness of fire door 3 position bodies of heater 1 furnace wall; Satisfy the volume of building fire door refractory brick 2.1 rear furnace bodies 1 inner chamber by laying bricks or stones simultaneously and do not influence production; The body of heater of building formation by laying bricks or stones 1 of fire door refractory brick 2.1 is one circle around fire door 3 outsides; The scope of building by laying bricks or stones of said fire door refractory brick 2.1 and the thickness arc stiffness according to the volume size of electric arc furnaces and when producing different product is confirmed the thick 100～200mm of wall thickness of wall ratio body of heater 1 other positions of said fire door 3 position bodies of heater 1.As preferably, the thick 150mm of wall thickness of wall ratio body of heater 1 other positions of the said fire door 3 position bodies of heater 1 of the utility model.
Claims (3)
1. an electric arc furnaces comprises by refractory brick (2) and builds the body of heater (1) that forms by laying bricks or stones and be arranged on the fire door (3) on the body of heater (1) that it is characterized in that: the wall thickness of fire door (3) position body of heater (1) is greater than the wall thickness of other positions of body of heater (1).
2. electric arc furnaces as claimed in claim 1; It is characterized in that: the inwall of said fire door (3) position body of heater (1) adopts fire door refractory brick (2.1) to build by laying bricks or stones, and the thickness of said monolithic fire door refractory brick (2.1) is greater than the thickness of the body of heater refractory brick (2.2) of other positions.
3. electric arc furnaces as claimed in claim 1 is characterized in that: the thick 100～200mm of wall thickness of other positions of wall ratio body of heater (1) of said fire door (3) position body of heater (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204953658U CN202393199U (en) | 2011-12-02 | 2011-12-02 | Electric arc furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204953658U CN202393199U (en) | 2011-12-02 | 2011-12-02 | Electric arc furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202393199U true CN202393199U (en) | 2012-08-22 |
Family
ID=46668117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204953658U Expired - Fee Related CN202393199U (en) | 2011-12-02 | 2011-12-02 | Electric arc furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202393199U (en) |
-
2011
- 2011-12-02 CN CN2011204953658U patent/CN202393199U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20161202 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |