CN202626230U - Improved structure of electric furnace body - Google Patents
Improved structure of electric furnace body Download PDFInfo
- Publication number
- CN202626230U CN202626230U CN2012202560907U CN201220256090U CN202626230U CN 202626230 U CN202626230 U CN 202626230U CN 2012202560907 U CN2012202560907 U CN 2012202560907U CN 201220256090 U CN201220256090 U CN 201220256090U CN 202626230 U CN202626230 U CN 202626230U
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- furnace
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- furnace shell
- improved structure
- cover plate
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The utility model discloses an improved structure of an electric furnace body, and the improved structure is used for prolonging the service life of a furnace liner of an electric furnace; the improved structure mainly comprises the furnace body formed by an upper furnace shell and a lower furnace shell; the upper furnace shell is connected with a master water-cooling pipe and a water-cooling pipe wall; the inner wall of the furnace body is provided with refractory bricks; the furnace body is also provided with a furnace door, a big eccentric water-cooling cover plate and a small eccentric water-cooling cover plate; therefore the improved structure has the advantages that (1) the refractory bricks arranged on the wall of the electric furnace are closely pressed by the water-cooling pipe wall arranged in the upper furnace shell, thus being prevented from loosening; (2) a newly added square box is used for supplementing, so that the upper furnace shell is effectively matched with a big water-cooling furnace cover; (3) the length of the furnace door is reduced by 30-400mm, and circular arc transition is adopted between the furnace door and the upper furnace shell as well as the lower furnace shell; and (4) the mounting positions of the big eccentric water-cooling cover plate and the small eccentric water-cooling cover plate are increased by 100-350mm. The improved structure of the electric furnace body can be used for greatly prolonging the furnace age, improving the smelting rhythm, avoiding the occurrence of severe safety accidents, reducing the overhaul work load of support crew, and greatly lowering the operating cost of manufacturers.
Description
Technical field
The utility model relates in particular to a kind of electric furnace liner electric furnace body improved structure in work-ing life that improves.
Background technology
Electric furnace is widely used in field of metallurgy as first furnace, can be used for smelting ordinary steel, high-quality steel and steel alloy.Directly have influence on output of steel, ton steel benefit and rhythm of production the work-ing life of electric furnace liner.Electric furnace liner is mainly built by laying bricks or stones by refractory brick and is formed, and in the electrosmelting process, refractory brick can receive washing away strongly of molten steel, piles up cold steel simultaneously easily, and particularly when verting body of heater, refractory brick comes off easily, has greatly influenced furnace life and molten steel purity.Electric furnace is through a large amount of stream slag dephosphorizations, and the whether smooth and easy dephosphorization effect that directly has influence on molten steel of stream slag flows slag simultaneously and freely do not form a large amount of cold steel easily at the fire door place; Rhythm is smelted in influence; Non-uniform temperature in the stove causes big boiling easily, and simultaneous oxidation slag RT in stove is elongated; Be prone to corrode slag lining in the stove, cause the refractory corrosion of slag line serious.Liquid steel temperature is about 1650 ℃ in smelting process, and molten steel splashes morely, touches the inboard water-cooled tube wall of eccentric cover plate easily, causes water cooling tube to break, thereby causes major accident.
The utility model content
The purpose of the utility model is to provide a kind of can effectively improve the electric furnace liner electric furnace body improved structure in work-ing life, thereby overcomes deficiency of the prior art.
For realizing above-mentioned utility model purpose, the utility model has adopted following technical scheme:
A kind of electric furnace body improved structure; Comprise the body of heater of mainly being made up of last furnace shell and following furnace shell, the said furnace shell of going up is connected with total water cooling tube and water-cooled tube wall, and said inboard wall of furnace body is provided with refractory brick; And also be provided with fire door and large and small eccentric water-cooled cover plate on the said body of heater, wherein:
The said diameter of going up furnace shell is dwindled 50-400mm than the existing diameter of going up furnace shell, makes the inner water-cooled tube wall of furnace shell press the refractory brick on the inboard wall of furnace body;
And/or, adopt a newly-increased square chest to be connected and remedy with last furnace shell, reach furnace shell and cooperate with the effective of the big bell of water-cooled;
And/or the length of said fire door is shortened 30-400mm than the diameter of existing fire door, and adopts arc transition between upper and lower furnace shell and the fire door;
And/or the installation site of said large and small eccentric water-cooled cover plate is enhanced 100-350mm than the installation site of existing large and small eccentric water-cooled cover plate.
A kind of electric furnace liner body of heater remodeling method in work-ing life that improves, it comprises one of following scheme at least:
(1) will go up the inner water-cooled tube wall of furnace shell and press the refractory brick on the electric stove wall, prevent that refractory brick is loosening;
(2) adopt newly-increased square chest to remedy, reach furnace shell and cooperate with the effective of the big bell of water-cooled;
(3) fire door length is shortened 30-400mm, and adopt arc transition between upper and lower furnace shell and the fire door;
(4) 100-350mm is improved in large and small eccentric water-cooled cover plate installation site.
Preferably, be through with furnace shell reduced 50-400mm on the body of heater in the scheme (1), thereby make the inner water-cooled tube wall of furnace shell press the refractory brick on the electric stove wall.
Preferably, be that the employing radius is the arc transition of 200 ~ 600mm between upper and lower furnace shell and the fire door in the scheme (3).
Compared with prior art, the beneficial effect of the utility model is:
(1) go up that furnace shell inwall water cooling tube is tightly pushed down and fixing refractory brick, the stove back refractory brick that fascinates is difficult for loose or dislocation, and furnace life can be increased to 1400 stoves/only, year a benefit can reach about 2,000,000 yuan;
(2) length that fire door is suitable and the arc transition of fire door and furnace shell have guaranteed that the stream slag is smooth and easy, improve and smelt rhythm, and temperature in the even stove, furnace atmosphere is better;
(3) it is too high and damage the situation of eccentric cover to have stopped the invar water temp; Can save about 750,000 yuan of the eccentric cover expense of changing every year; Reduced the 6-7 hour stop time (1 year 5 times) that produces because of compelled replacing eccentric cover simultaneously, stopped the serious accident of leaking and seriously producing because of eccentric cover;
(4) ME expense is reduced to about 10,000 yuan/month, and alleviates rear service personnel's maintenance workload.
Description of drawings
Fig. 1 is the structural representation of the utility model one preferred embodiment;
Each assembly and Reference numeral thereof are respectively among the figure: go up furnace shell 1, total cold water pipe 2, eccentric water-cooled lid 3, following furnace shell 4, water-cooled tube wall 5, refractory brick 6, fire door 7, square chest 8.
Embodiment
Be further described below in conjunction with accompanying drawing and a preferred embodiment technical scheme the utility model.
Consult Fig. 1, present embodiment comprises the modification scheme of electric cooker structure:
(1) with furnace shell reduced 300mm on the body of heater, the inner water-cooled tube of furnace shell is tightly pushed down refractory brick and is played the purpose that prevents that refractory brick is loosening in the assurance.
(2) adopt newly-increased square chest 8 to remedy, reach furnace shell and cooperate with the effective of the big bell of water-cooled.
(3) with the 300mm that shortens of fire door length, adopt the arc transition of R500 up and down between furnace shell and the fire door, guarantee that the stream slag is smooth and easy.
(4) 300mm is improved in large and small eccentric cover plate 3 installation sites, weaken of the harm of the high temperature of molten steel large and small eccentric cover plate.
It is pointed out that above embodiment only is used to explain the content of the utility model, in addition, the utility model also has other embodiments.But all employings are equal to replacement or the technical scheme that forms of equivalent deformation mode all drops in the protection domain of the utility model.
Claims (2)
1. electric furnace body improved structure; Comprise the body of heater of mainly forming by last furnace shell (1) and following furnace shell (4); The said furnace shell (1) of going up is connected with total water cooling tube (2) and water-cooled tube wall (5); Said inboard wall of furnace body is provided with refractory brick (6), and also is provided with fire door (7) and large and small eccentric water-cooled cover plate (3) on the said body of heater, it is characterized in that:
The said diameter of going up furnace shell is dwindled 50-400mm than the existing diameter of going up furnace shell, makes the inner water-cooled tube wall of furnace shell press the refractory brick on the inboard wall of furnace body;
And/or, set up a square chest, this square chest is fixedly connected with last furnace shell;
And/or the length of said fire door is shortened 30-400mm than the diameter of existing fire door, and adopts arc transition between upper and lower furnace shell and the fire door;
And/or the installation site of said large and small eccentric water-cooled cover plate is enhanced 100-350mm than the installation site of existing large and small eccentric water-cooled cover plate.
2. electric furnace body improved structure according to claim 1 is characterized in that, is that the employing radius is the arc transition of 200 ~ 600mm between said upper and lower furnace shell and the fire door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202560907U CN202626230U (en) | 2012-06-01 | 2012-06-01 | Improved structure of electric furnace body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202560907U CN202626230U (en) | 2012-06-01 | 2012-06-01 | Improved structure of electric furnace body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202626230U true CN202626230U (en) | 2012-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202560907U Expired - Lifetime CN202626230U (en) | 2012-06-01 | 2012-06-01 | Improved structure of electric furnace body |
Country Status (1)
| Country | Link |
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| CN (1) | CN202626230U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107830727A (en) * | 2017-11-01 | 2018-03-23 | 中车长江铜陵车辆有限公司 | A kind of electric arc furnaces for being provided with L-type water cooled furnace wall |
-
2012
- 2012-06-01 CN CN2012202560907U patent/CN202626230U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107830727A (en) * | 2017-11-01 | 2018-03-23 | 中车长江铜陵车辆有限公司 | A kind of electric arc furnaces for being provided with L-type water cooled furnace wall |
| CN107830727B (en) * | 2017-11-01 | 2023-07-18 | 中车长江铜陵车辆有限公司 | Arc furnace with L-shaped water-cooled furnace wall |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |