CN217785779U - Closed cover for electric arc furnace - Google Patents
Closed cover for electric arc furnace Download PDFInfo
- Publication number
- CN217785779U CN217785779U CN202220971595.5U CN202220971595U CN217785779U CN 217785779 U CN217785779 U CN 217785779U CN 202220971595 U CN202220971595 U CN 202220971595U CN 217785779 U CN217785779 U CN 217785779U
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- CN
- China
- Prior art keywords
- electric arc
- arc furnace
- cover
- fixed cover
- hood
- 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.)
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- 238000010891 electric arc Methods 0.000 title claims abstract description 95
- 239000003546 flue gas Substances 0.000 claims abstract description 22
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 206010022000 influenza Diseases 0.000 claims description 4
- 241001417494 Sciaenidae Species 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 239000000428 dust Substances 0.000 description 11
- 239000000779 smoke Substances 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005453 pelletization Methods 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009845 electric arc furnace steelmaking Methods 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Landscapes
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The utility model provides an airtight cover for electric arc furnace, the left and right sides of electric arc furnace is provided with reinforced water-cooling chimney and the transformer building in succession respectively, the front side of electric arc furnace is provided with and adds the indisputable device, an airtight cover for electric arc furnace includes: enclose and establish the left first fixed cover of electric arc furnace encloses and establishes the second fixed cover on the right side of electric arc furnace encloses and establishes the third fixed cover of the rear side of electric arc furnace, and enclose and establish the front side of electric arc furnace and top and can be relative the removal cover that the electric arc furnace removed, wherein, first fixed cover the second fixed cover with the third fixed cover with it establishes to remove the cover and enclose into a cover the space of electric arc furnace, it establishes to remove the cover to enclose be provided with the flue gas kuppe in the part at the top of electric arc furnace. The utility model discloses flue gas collection effect is good.
Description
Technical Field
The utility model relates to an electric arc furnace steelmaking technical field, in particular to an airtight cover for electric arc furnace.
Background
In the process of electric furnace steelmaking, a large amount of smoke is generated due to oxidation and evaporation of metals at high temperature, flying of slag-forming material powder and combustion of combustible substances in furnace burden. For a large amount of smoke generated by electric furnace smelting, smoke prevention and dust control measures must be taken, otherwise the health of operators and the surrounding environment are influenced. The 'closed cover' mechanism is additionally arranged near the electric furnace body, the compressed smoke gives off space, the dust removal air quantity can be greatly reduced, the electric energy consumption is reduced on the premise of ensuring the dust removal effect, and the production cost is favorably reduced. The closed cover arranged in the electric furnace steelmaking workshop is also beneficial to improving the safety and the sanitation of workers in the workshop. Its advantages include less noise of operation site, less electromagnetic radiation of electric furnace and less dust flying in electric furnace.
Although the smoke outlet communicated with the smoke pipeline is formed in the existing closed cover for the electric arc furnace, the smoke outlet is usually arranged on the side face of the closed cover for the electric arc furnace, and the smoke diversion effect is not achieved, and the smoke collection effect is not obvious.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an airtight cover for electric arc furnace to solve the current airtight cover flue gas collection effect not good problem that is used for electric arc furnace.
In order to solve the technical problem, the utility model provides an airtight cover for electric arc furnace, the left and right sides of electric arc furnace is provided with reinforced water-cooling chimney and transformer building in succession respectively, the front side of electric arc furnace is provided with and adds the indisputable device, an airtight cover for electric arc furnace includes: enclose and establish the left first fixed cover of electric arc furnace encloses and establishes the second fixed cover on the right side of electric arc furnace encloses and establishes the third fixed cover of the rear side of electric arc furnace, and enclose and establish the front side of electric arc furnace and top and can be relative the removal cover that the electric arc furnace removed, wherein, first fixed cover the second fixed cover with the third fixed cover with it establishes to remove the cover and enclose into a cover the space of electric arc furnace, it establishes to remove the cover to enclose be provided with the flue gas kuppe in the part at the top of electric arc furnace.
Optionally, the flue gas kuppe is including setting up the water conservancy diversion body at removal cover top, and set up a plurality of water conservancy diversion flues that set up from bottom to top on the water conservancy diversion body.
Optionally, the third fixed cover further encloses a portion of the top of the arc furnace, and the cross section of the third fixed cover is 7-shaped.
Optionally, remove the cover and include low rail face, top surface and high rail face, the low rail face with high rail face perpendicular to the top surface sets up, just the low rail face with the ground sliding connection of the front side of electric arc furnace, the high rail face with the fixed cover of third encloses and establishes the partial sliding connection at the top of electric arc furnace.
Optionally, the top surface of the movable cover is a frame structure.
Optionally, the movable cover further has an inclined surface, and the top surface and the low rail surface are connected by the inclined surface.
Optionally, the lower rail surface of the movable cover is provided with a rolling door.
Optionally, the low rail surface of the movable cover is provided with an iron charging trapping cover.
Optionally, the first fixing cover, the second fixing cover and the third fixing cover are of a frame structure.
The utility model provides a pair of an airtight cover for electric arc furnace has following beneficial effect:
through enclosing to establish the left first fixed cover of electric arc furnace encloses to be established the second fixed cover on the right side of electric arc furnace encloses to be established the rear side third fixed cover of electric arc furnace, and encloses to establish the front side of electric arc furnace and the removal cover at top, just first fixed cover the second fixed cover with the third fixed cover with it encloses into a space that covers and establish the electric arc furnace to remove the cover, and consequently the accessible first fixed cover the second fixed cover with the third fixed cover with it encloses into a space that covers and establish the electric arc furnace to remove the cover, and it establishes to remove the cover to enclose be provided with the flue gas kuppe on the part at the top of electric arc furnace, consequently can make the flue gas that produces in the electric arc furnace comply with the air current and rise, discharge from the flue gas kuppe, and the flue gas collection effect is good, and dust removal effect is showing, and reducible dust pelletizing system's exhaust volume reduces dust pelletizing system investment and working costs earlier stage. Because the movable cover can move relative to the electric arc furnace, namely, the space on the front side and the top of the electric arc furnace can not be shielded by the movable cover, the furnace shell can be conveniently lifted when the electric arc furnace is maintained.
Drawings
FIG. 1 is a cross-sectional view of an enclosure for an electric arc furnace in an embodiment of the invention;
FIG. 2 is a left side view of an enclosure for an electric arc furnace in an embodiment of the invention;
fig. 3 is a top view of an enclosure for an electric arc furnace in an embodiment of the invention.
Description of reference numerals:
100-an electric arc furnace;
110-a first stationary shield;
120-a second stationary shield;
130-a third stationary shield;
140-a mobile cover; 141-low rail face; 142-a top surface; 143-high rail face; 144-inclined plane;
150-a roller shutter door;
160-iron adding collecting cover.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
Referring to fig. 1, 2 and 3, fig. 1 is a cross-sectional view of a sealed enclosure for an electric arc furnace in an embodiment of the present invention, fig. 2 is a left side view of a sealed enclosure for an electric arc furnace in an embodiment of the present invention, and fig. 3 is a top view of a sealed enclosure for an electric arc furnace in an embodiment of the present invention, which provides a sealed enclosure for an electric arc furnace. The left and right sides of electric arc furnace 100 are provided with water-cooling chimney and the transformer building of reinforced in succession respectively, the front side of electric arc furnace 100 is provided with and adds indisputable device. Said containment for an electric arc furnace comprising: enclose and establish the left first fixed cover 110 of electric arc furnace 100 encloses and establishes the fixed cover 120 of second on the right side of electric arc furnace 100 encloses and establishes the fixed cover 130 of third on the rear side of electric arc furnace 100, and enclose and establish the front side of electric arc furnace 100 and top and can be relative the removal cover 140 that electric arc furnace 100 removed, wherein, first fixed cover 110 the fixed cover 120 of second with the fixed cover 130 of third with it encloses into a cover and establishes to remove cover 140 the space of electric arc furnace 100, it encloses and establishes to remove cover 140 be provided with the flue gas kuppe in the part at the top of electric arc furnace 100.
The first fixed cover 110 arranged on the left side of the electric arc furnace 100, the second fixed cover 120 arranged on the right side of the electric arc furnace 100, the third fixed cover 130 arranged on the rear side of the electric arc furnace 100 and the movable cover 140 arranged on the front side and the top of the electric arc furnace 100 are arranged in an enclosing manner, the first fixed cover 110, the second fixed cover 120, the third fixed cover 130 and the movable cover 140 enclose a space for covering the electric arc furnace 100, so that a flue gas diversion cover is arranged on the part of the movable cover 140 arranged on the top of the electric arc furnace 100 in an enclosing manner, flue gas airflow generated in the electric arc furnace 100 can be made to conform to rise, the flue gas is discharged from the flue gas diversion cover, the flue gas collection effect is good, the dust removal effect is remarkable, the smoke discharge amount of a dust removal system can be reduced, and the early stage and the operation cost of the dust removal system are reduced. Since the movable hood 140 is movable relative to the electric arc furnace 100, i.e. the space on the front side and the top of the electric arc furnace 100 can not be shielded by the movable hood 140, the hoisting of the furnace shell during maintenance of the electric arc furnace 100 can be facilitated.
In this embodiment, the flue gas guiding hood includes a guiding body disposed on the top of the movable hood 140, and a plurality of guiding flues disposed from bottom to top on the guiding body, so that the guiding flues correspond to the ascending path of the flue gas, which facilitates the discharge of the flue gas and improves the flue gas collecting effect.
Referring to fig. 1, the third stationary hood 130 also encloses a portion of the top of the electric arc furnace 100, and the cross-section of the third stationary hood 130 is "7".
The movable hood 140 includes a lower rail surface 141, a top surface 142 and a higher rail surface 143, the lower rail surface 141 and the higher rail surface 143 are perpendicular to the top surface 142, the lower rail surface 141 is slidably connected to the ground at the front side of the arc furnace 100, and the higher rail surface 143 is slidably connected to the portion of the third fixed hood 130 surrounding the top of the arc furnace 100, so that the stability of the movable hood 140 can be improved.
Referring to fig. 2, the number of the moving hoods 140 is two, two moving hoods 140 are disposed side by side, and both the moving hoods 140 may move to the right side of the electric arc furnace 100.
Referring to fig. 1, the top surface 142 of the moving cover 140 is a frame structure, so that the strength and rigidity of the top surface 142 can be improved while the weight of the top surface 142 is reduced.
Referring to fig. 1, the movable hood 140 further has an inclined surface 144, and the top surface 142 and the lower rail surface 141 are connected by the inclined surface 144, so that a chamfer is formed on a cross section of a side surface of the movable hood 140 when viewed from a side surface of the movable hood 140, and the inclined surface 144 is configured to prevent a lifting operation of the shell of the electric arc furnace 100 from being affected and to prevent an operation space of a front operation platform from being occupied.
Referring to fig. 1, the movable hood 140 has a roll door 150 on a lower rail surface 141 thereof, so that the suction of the open wind is effectively reduced and the dust removing efficiency is improved while the interior space of the hermetic hood for the arc furnace is accessed.
Referring to FIG. 1, the movable hood 140 has a hot metal charging trap hood 160 on its lower rail surface 141 so that flue gases generated by the hot metal charging apparatus can be collected, thereby further optimizing the production environment of the electric arc furnace 100.
In this embodiment, the first fixing cover 110, the second fixing cover 120 and the third fixing cover 130 may be fixedly coupled.
The first fixing cover 110, the second fixing cover 120 and the third fixing cover 130 are frame structures, so that strength and rigidity can be improved while weight is reduced.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any changes and modifications made by those skilled in the art according to the above disclosure are all within the scope of the appended claims.
Claims (9)
1. The utility model provides a closed cover for electric arc furnace, the left and right sides of electric arc furnace is provided with reinforced water-cooling chimney and the transformer building in succession respectively, the front side of electric arc furnace is provided with hot metal device, its characterized in that, a closed cover for electric arc furnace includes: enclose and establish the left first fixed cover of electric arc furnace encloses and establishes the second fixed cover on the right side of electric arc furnace encloses and establishes the third fixed cover of the rear side of electric arc furnace, and enclose and establish the front side of electric arc furnace and top and can be relative the removal cover that the electric arc furnace removed, wherein, first fixed cover the second fixed cover with the third fixed cover with it establishes to remove the cover and enclose into a cover the space of electric arc furnace, it establishes to remove the cover to enclose be provided with the flue gas kuppe in the part at the top of electric arc furnace.
2. The enclosure for an electric arc furnace of claim 1, wherein the flue gas dome comprises a deflector body disposed on top of the moving dome, and a plurality of bottom-up deflector flues opening onto the deflector body.
3. The containment vessel for an electric arc furnace as claimed in claim 1, wherein said third stationary vessel is further enclosed on a partial roof of said electric arc furnace and has a cross-section in the shape of a "7".
4. The containment vessel for an electric arc furnace as claimed in claim 3, wherein the mobile vessel comprises a lower rail surface, a top surface and an upper rail surface, the lower rail surface and the upper rail surface being arranged perpendicularly to the top surface and being slidingly coupled to the ground at the front side of the furnace, the upper rail surface being slidingly coupled to the portion of the third stationary vessel that surrounds the top of the furnace.
5. The enclosure for an electric arc furnace of claim 4, wherein the top surface of the moving hood is a frame structure.
6. The enclosure for an electric arc furnace of claim 4, wherein said moving hood further has an inclined surface, said top surface and said low rail surface being connected by said inclined surface.
7. The enclosure for an electric arc furnace of claim 4, wherein said moving hood has a tambour door on a lower rail surface thereof.
8. The enclosure for an electric arc furnace of claim 4, wherein said moving hood has a hot metal trap hood on a lower rail surface thereof.
9. The containment hood for electric arc furnaces of claim 1 in which said first fixed hood, said second fixed hood and said third fixed hood are frame structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220971595.5U CN217785779U (en) | 2022-04-25 | 2022-04-25 | Closed cover for electric arc furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220971595.5U CN217785779U (en) | 2022-04-25 | 2022-04-25 | Closed cover for electric arc furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217785779U true CN217785779U (en) | 2022-11-11 |
Family
ID=83907239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220971595.5U Active CN217785779U (en) | 2022-04-25 | 2022-04-25 | Closed cover for electric arc furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217785779U (en) |
-
2022
- 2022-04-25 CN CN202220971595.5U patent/CN217785779U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |