CN201237443Y - Automatic sand-filling apparatus of electric furnace - Google Patents
Automatic sand-filling apparatus of electric furnace Download PDFInfo
- Publication number
- CN201237443Y CN201237443Y CNU2008200487775U CN200820048777U CN201237443Y CN 201237443 Y CN201237443 Y CN 201237443Y CN U2008200487775 U CNU2008200487775 U CN U2008200487775U CN 200820048777 U CN200820048777 U CN 200820048777U CN 201237443 Y CN201237443 Y CN 201237443Y
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- CN
- China
- Prior art keywords
- sand
- electric furnace
- cylinder
- flashboard
- piston rod
- 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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- 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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- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The utility model relates to an automatic sand filling device of an electric furnace, which comprises a damper arranged at the sand outlet of a sand storehouse of the electric furnace, and a cylinder connected with the damper; the damper is provided with a through hole; when a piston rod of the cylinder extends out, the through hole of the damper is in alignment with the sand outlet of the sand storehouse of the electric furnace. The automatic sand filling device of the electric furnace is an automatic sand filling device at a steel tap hole of the electrical furnace which has very long service life; a retracted limit position and a limit position which extends out of the piston rod of the cylinder control the on and the off of the damper of the sand outlet, which prevents high-temperature radiation and high-temperature dust from corroding a chromium coating of the piston rod, reduces the potential damage to sealing elements, thereby prolonging the service life of a whole sand feeding system.
Description
[technical field]
The utility model relates to a kind of steel-making mechanism, refers in particular to a kind of device toward the tap holes of electric furnace back-up sand.
[background technology]
The automatic back-up sand device of electric furnace is to make electric furnace storage Sha Cang and add the parts that sandpipe is connected, and effect is to open with closure by air pressure control to add the sand flashboard toward the tap holes of electric furnace back-up sand.
The structure of the automatic back-up sand device of existing electric furnace drives flashboard 2 by cylinder 1 and moves back and forth as depicted in figs. 1 and 2, and when cylinder 1 piston rod stretched out, sand export was closed, and system stops back-up sand, and when cylinder 1 piston rod was regained, sand export was opened, and system begins back-up sand.Cylinder 1 as executive component does not have water circulation cooling, its shortcoming is because heat conduction and radiation, seal melting loss in the cylinder causes cylinder leakage tester, and electric furnace is in the process of steel-making, electric power feeding time reaches 45 minutes, power failure is opened the back-up sand time and is had only short two, three minutes, the time that needs sand export to open is less relatively, then the piston rod of cylinder can be in the state that stretches out for a long time, chromium layer on the piston rod comes off easily, in reciprocating process, the sealing of cylinder end is ground away, thereby cause whole sand-feeding system paralysis.
Therefore, provide a kind of rational in infrastructure, performance good, the life-span is long, the automatic back-up sand device of electric furnace that can effectively guarantee to add the long-time operate as normal of sand system is real for necessary.
[summary of the invention]
The purpose of this utility model is to provide a kind of simple and reasonable, performance good, the life-span is long automatic back-up sand device of electric furnace.
For realizing the utility model purpose, provide following technical scheme:
The automatic back-up sand device of the utility model electric furnace, it comprises the flashboard that is arranged on electric furnace storage sand storehouse sand export, and the cylinder that connects flashboard, offers perforation on this flashboard, this perforation operated by rotary motion close cylinder one end on flashboard.
Cylinder drives flashboard and moves back and forth, and when cylinder piston rod stretched out, the sand export in electric furnace storage sand storehouse was aimed in the perforation of this flashboard, and sand export is opened, and system begins back-up sand; When cylinder piston rod was regained, the sand export in the perforation of this flashboard and electric furnace storage sand storehouse staggered, and sand export is closed, and system stops back-up sand.Therefore in steelmaking process, open in the short time of back-up sand, cylinder piston rod just is in the state of stretching out, and all the other working times in the electric furnace transmission process, cylinder piston rod is retracted in cylinder interior always, has avoided piston rod chromium pull-up to fall.
Described cylinder is a water-cooled cylinder, is to be with a metal-back outside the outer tube wall of common cylinder, utilizes crack between the two, forms cooling water channel between cylinder outer tube wall and metal-back.By adopting water-cooled cylinder, solved because hyperthermia radiation causes cylinder seal spare to damage gas leakage.
The contrast prior art the utlity model has following advantage:
The automatic back-up sand device of the utility model electric furnace is a kind of very automatic back-up sand device of tap holes of electric furnace of long life that has, by utilizing the retraction of water-cooled cylinder piston rod and two extreme position control sand export flashboards that stretch out to open and close, in the electric furnace smelting process, cylinder piston rod drives flashboard and is in the piston rod retracted mode, avoid hyperthermia radiation and high-temperature dust corrosion piston rod chromium layer, reduce the possibility that seal damages, cylinder piston rod only stretches out in extremely short time a few minutes of tapping hole back-up sand, reduced the probability that cylinder piston rod exposes greatly, thereby improved the whole life-span that adds the sand system.
[description of drawings]
Fig. 1 is the schematic diagram of the sand export opening of the existing automatic back-up sand device of electric furnace;
Fig. 2 is the schematic diagram of the sand export closed condition of the existing automatic back-up sand device of electric furnace;
Fig. 3 is the schematic diagram of the sand export opening of the automatic back-up sand device of the utility model electric furnace;
Fig. 4 is the schematic diagram of the sand export closed condition of the automatic back-up sand device of the utility model electric furnace;
Fig. 5 is the flashboard of the automatic back-up sand device of the utility model electric furnace and the vertical view of water-cooled cylinder.
[specific embodiment]
See also Fig. 3 and Fig. 4, the automatic back-up sand device of the utility model electric furnace comprises the flashboard 4 that is arranged on electric furnace storage sand storehouse sand export, and the cylinder that connects flashboard 4, offers perforation 5 on this flashboard 4.
See also Fig. 5, this perforation 5 is arranged on the flashboard 4 near cylinder 3 one ends.Described cylinder is a water-cooled cylinder 3, is to be with a metal-back outside the outer tube wall of common cylinder, utilizes crack between the two, forms cooling water channel between cylinder outer tube wall and metal-back.By adopting water-cooled cylinder 3, solved because hyperthermia radiation causes cylinder seal spare to damage gas leakage.
The operation principle of the automatic back-up sand device of this electric furnace: water-cooled cylinder 3 drives flashboard and moves back and forth, and when water-cooled cylinder 3 piston rods stretched out, the sand export in electric furnace storage sand storehouse was aimed in the perforation 5 of this flashboard 4, and sand export is opened, and system begins back-up sand; When water-cooled cylinder 3 piston rods were regained, the perforation 5 of this flashboard 4 was staggered with the sand export that electric furnace is store the sand storehouse, and sand export is closed, and system stops back-up sand.
The above only is preferred embodiment of the present utility model, and protection domain of the present utility model is not limited thereto, and anyly all belongs within the utility model protection domain based on the equivalent transformation on the technical solutions of the utility model.
Claims (4)
1, the automatic back-up sand device of a kind of electric furnace is characterized in that, it comprises the flashboard that is arranged on electric furnace storage sand storehouse sand export, and the cylinder that connects flashboard, offer perforation on this flashboard, when cylinder piston rod stretched out, the sand export in electric furnace storage sand storehouse was aimed in this flashboard perforation.
2, the automatic back-up sand device of electric furnace as claimed in claim 1 is characterized in that, this cylinder is a water-cooled cylinder.
3, the automatic back-up sand device of electric furnace as claimed in claim 2 is characterized in that, this water-cooled cylinder is to be with a metal-back outside the cylinder outer tube wall, forms cooling water channel between cylinder outer tube wall and the metal-back.
4, the automatic back-up sand device of electric furnace as claimed in claim 1 or 2 is characterized in that, this perforation is arranged on the flashboard near cylinder one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200487775U CN201237443Y (en) | 2008-06-04 | 2008-06-04 | Automatic sand-filling apparatus of electric furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200487775U CN201237443Y (en) | 2008-06-04 | 2008-06-04 | Automatic sand-filling apparatus of electric furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201237443Y true CN201237443Y (en) | 2009-05-13 |
Family
ID=40650176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200487775U Expired - Fee Related CN201237443Y (en) | 2008-06-04 | 2008-06-04 | Automatic sand-filling apparatus of electric furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201237443Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495701A (en) * | 2013-10-10 | 2014-01-08 | 河南省金太阳铸造有限公司 | Hopper of resin sand mixer |
| CN110628984A (en) * | 2019-10-11 | 2019-12-31 | 中冶南方工程技术有限公司 | Electric arc furnace sand filling device |
| CN114381571A (en) * | 2022-01-18 | 2022-04-22 | 中冶赛迪工程技术股份有限公司 | Automatic sand filling device for steel tapping hole |
-
2008
- 2008-06-04 CN CNU2008200487775U patent/CN201237443Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495701A (en) * | 2013-10-10 | 2014-01-08 | 河南省金太阳铸造有限公司 | Hopper of resin sand mixer |
| CN110628984A (en) * | 2019-10-11 | 2019-12-31 | 中冶南方工程技术有限公司 | Electric arc furnace sand filling device |
| CN110628984B (en) * | 2019-10-11 | 2023-12-29 | 中冶南方工程技术有限公司 | Sand filling device of electric arc furnace |
| CN114381571A (en) * | 2022-01-18 | 2022-04-22 | 中冶赛迪工程技术股份有限公司 | Automatic sand filling device for steel tapping hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090513 Termination date: 20130604 |