CN107178997A - A kind of air sealed small center furnace cover - Google Patents
A kind of air sealed small center furnace cover Download PDFInfo
- Publication number
- CN107178997A CN107178997A CN201710396497.7A CN201710396497A CN107178997A CN 107178997 A CN107178997 A CN 107178997A CN 201710396497 A CN201710396497 A CN 201710396497A CN 107178997 A CN107178997 A CN 107178997A
- Authority
- CN
- China
- Prior art keywords
- electrode
- ring tube
- furnace cover
- exhaust ring
- bell body
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/08—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces heated electrically, with or without any other source of heat
- F27B3/085—Arc furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/18—Door frames; Doors, lids, removable covers
- F27D1/1808—Removable covers
- F27D1/1816—Removable covers specially adapted for arc furnaces
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The invention belongs to technical field of metallurgical machinery, specifically related to a kind of air sealed small center furnace cover, including bell body, air inlet pipe, it is vented ring tube and electrode, electrode is connected to the inside of bell body vertically, exhaust ring tube level is socketed in the excircle of electrode and positioned at the inside of bell body, air inlet pipe connection exhaust ring tube, exhaust ring tube is provided with stomata, solve in the prior art due to there is gap between small center furnace cover electrode hole and electrode, when bell pressure below is excessive, gas is just had to discharge by electrode hole and interelectrode gap, not only pollute environment, also prevent the problem of atmosphere in stove is from stable regulation, structure is novel, it is simple and practical, while ensureing to smelt atmosphere, decrease environmental pollution, there is vast potential for future development in steel-making cause.
Description
Technical field
The invention belongs to technical field of metallurgical machinery, and in particular to a kind of air sealed small center furnace cover.
Background technology
Center of electric furnace small furnace cover is normally on big bell, and small central has covered three holes, is moving up and down for electrode
Passage, small center furnace cover primarily serves shielding arc light and reduces the lost effect of heat.But, due to small center furnace cover electrode
There is gap between hole and electrode, when bell pressure below is excessive, just has gas and arranged by electrode hole and interelectrode gap
Go out, not only pollute environment, also prevent the atmosphere in stove from stable regulation.A kind of air sealed small central that the present invention is illustrated
Lid, can be by discharging the air curtain of gas formation, it is ensured that dusty gas in stove is not discharged from electrode hole, and this is at home and abroad also not
See.
The content of the invention
The purpose of the present invention is overcome in the prior art due to there is gap between small center furnace cover electrode hole and electrode, works as stove
When lid pressure below is excessive, just has gas and discharged by electrode hole and interelectrode gap, not only pollute environment, also make stove
The problem of interior atmosphere is unable to stable regulation.
Therefore, the invention provides a kind of air sealed small center furnace cover, including bell body, air inlet pipe, exhaust ring tube
And electrode, electrode is connected to the inside of bell body vertically, and exhaust ring tube level is socketed in the excircle of electrode and positioned at stove
The inside of lid body, air inlet pipe connection exhaust ring tube, exhaust ring tube is provided with stomata.
Described electrode is at least three and is distributed uniformly and circumferentially in the inside of bell body, and each electrode is cylindrical
It is socketed an exhaust ring tube week.
The described each exhaust ring tube of air inlet pipe connection.
Described exhaust ring tube along the circumferential direction uniformly opens up multiple stomatas.
Described bell body uses refractory material.
Beneficial effects of the present invention：This air sealed small center furnace cover that the present invention is provided, when air inlet pipe is passed through gas, row
Gas ring tube can form a circle air curtain, so as to ensure stove by stomata to electrode ejection gas between small center furnace cover and electrode
Gas below lid will not be gone out along electrode hole, and structure is novel, simple and practical, it is ensured that while smelting atmosphere, decrease ring
Border is polluted, and has vast potential for future development in steel-making cause.
Brief description of the drawings
The present invention is described in further details below with reference to accompanying drawing.
Fig. 1 is the cross-sectional view of air sealed small center furnace cover；
Fig. 2 is the main structure schematic diagram of air sealed small center furnace cover.
Description of reference numerals：1st, bell body；2nd, air inlet pipe；3rd, it is vented ring tube；4th, electrode；5th, stomata.
Embodiment
Embodiment 1：
As depicted in figs. 1 and 2, a kind of air sealed small center furnace cover, it is characterised in that：Including bell body 1, air inlet pipe 2,
Ring tube 3 and electrode 4 are vented, electrode 4 is connected to the inside of bell body 1 vertically, and the exhaust level of ring tube 3 is socketed in electrode 4
Excircle and positioned at bell body 1 inside, air inlet pipe 2 connection exhaust ring tube 3, exhaust ring tube 3 be provided with stomata 5.Enter
When tracheae 2 is passed through gas, exhaust ring tube 3 can be by stomata 5 to the ejection gas of electrode 4, the shape between bell body 1 and electrode 4
Into a circle air curtain, so that ensureing the gas of the lower section of bell body 1 will not go out along electrode hole, structure is novel, simple and practical, it is ensured that
While smelting atmosphere, environmental pollution is decreased, there is vast potential for future development in steel-making cause.
Embodiment 2：
As shown in figure 1, on the basis of embodiment 1, described electrode 4 is at least three and is distributed uniformly and circumferentially
In the inside of bell body 1, each excircle of electrode 4 is socketed an exhaust ring tube 3；Ensure exhaust ring tube 3 by gas
The gas that hole 5 sprays to electrode 4 forms a circle air curtain, and the uniform force of bell body 1, structure between bell body 1 and electrode 4
It is stable.
Described air inlet pipe 2 connects each exhaust ring tube 3, it is ensured that each exhaust ring tube 3 has air inlet, makes each electricity
Pole hole is all blocked by air curtain, prevents flue gas from not discharging, while ensureing the function of atmosphere in stove.
Described exhaust ring tube 3 along the circumferential direction uniformly opens up multiple stomatas 5, it is ensured that the air curtain of formation is evenly distributed,
Sealing effectiveness is more preferable.
Described bell body 1 uses refractory material, and center of electric furnace small furnace cover is located on big bell, used in steelmaking process
In, play good resistance to compression, shielding arc light and reduce the lost effect of heat.
The operation principle of the present invention：
When air inlet pipe 2 is passed through gas, exhaust ring tube 3 can by stomata 5 to electrode 4 spray gas, bell body 1 with
One is formed between electrode 4 and encloses air curtain, so that ensureing the gas of the lower section of bell body 1 will not go out along electrode hole.
It is exemplified as above be only to the present invention for example, do not constitute the limitation to protection scope of the present invention, it is all
It is to be belonged to the same or analogous design of the present invention within protection scope of the present invention.
Claims (5)
1. a kind of air sealed small center furnace cover, it is characterised in that：Including bell body (1), air inlet pipe (2), exhaust ring tube (3)
With electrode (4), electrode (4) is connected to the inside of bell body (1) vertically, and exhaust ring tube (3) level is socketed in electrode (4)
Excircle and the inside for being located at bell body (1), air inlet pipe (2) connection exhaust ring tube (3), exhaust ring tube (3) are provided with gas
Hole (5).
2. air sealed small center furnace cover as claimed in claim 1, it is characterised in that：Described electrode (4) be at least three and
The inside in bell body (1) is distributed uniformly and circumferentially, each electrode (4) excircle is socketed an exhaust ring tube
(3)。
3. air sealed small center furnace cover as claimed in claim 2, it is characterised in that：The described each row of air inlet pipe (2) connection
Gas ring tube (3).
4. air sealed small center furnace cover as claimed in claim 3, it is characterised in that：Described exhaust ring tube (3) is circumferentially
Direction uniformly opens up multiple stomatas (5).
5. air sealed small center furnace cover as claimed in claim 4, it is characterised in that：Described bell body (1) uses fire resisting
Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710396497.7A CN107178997A (en) | 2017-05-31 | 2017-05-31 | A kind of air sealed small center furnace cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710396497.7A CN107178997A (en) | 2017-05-31 | 2017-05-31 | A kind of air sealed small center furnace cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107178997A true CN107178997A (en) | 2017-09-19 |
Family
ID=59835069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710396497.7A Pending CN107178997A (en) | 2017-05-31 | 2017-05-31 | A kind of air sealed small center furnace cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107178997A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489289A (en) * | 2018-05-11 | 2018-09-04 | 河钢股份有限公司承德分公司 | Electrode hole flue gas anti-overflow device and its method when one kind is for the production of LF stoves |
| CN114754583A (en) * | 2022-03-16 | 2022-07-15 | 国网辽宁省电力有限公司鞍山供电公司 | Method for supplementing carbon dioxide for fused magnesia furnace and integrated furnace cover |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0922776A (en) * | 1995-07-05 | 1997-01-21 | Sumitomo Metal Ind Ltd | Electrode sealing device for use in electric furnace |
| CN202329243U (en) * | 2011-12-02 | 2012-07-11 | 鞍山创新实业有限公司 | Smoke and dust removing device for refining furnace |
| CN203501741U (en) * | 2013-08-15 | 2014-03-26 | 宝钢集团新疆八一钢铁有限公司 | Electrode hole brick with gas seal device |
| CN204356357U (en) * | 2014-12-26 | 2015-05-27 | 攀钢集团成都钢钒有限公司 | The LF stove bell of band protection air-tight structure |
| CN204714851U (en) * | 2015-06-16 | 2015-10-21 | 河北钢铁股份有限公司承德分公司 | A kind of LF Water-cooling furnace cover of ladle refining furnace charge cavity gas blow pipe |
| CN206127353U (en) * | 2016-11-08 | 2017-04-26 | 河钢股份有限公司承德分公司 | LF stove gas protective device |
-
2017
- 2017-05-31 CN CN201710396497.7A patent/CN107178997A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0922776A (en) * | 1995-07-05 | 1997-01-21 | Sumitomo Metal Ind Ltd | Electrode sealing device for use in electric furnace |
| CN202329243U (en) * | 2011-12-02 | 2012-07-11 | 鞍山创新实业有限公司 | Smoke and dust removing device for refining furnace |
| CN203501741U (en) * | 2013-08-15 | 2014-03-26 | 宝钢集团新疆八一钢铁有限公司 | Electrode hole brick with gas seal device |
| CN204356357U (en) * | 2014-12-26 | 2015-05-27 | 攀钢集团成都钢钒有限公司 | The LF stove bell of band protection air-tight structure |
| CN204714851U (en) * | 2015-06-16 | 2015-10-21 | 河北钢铁股份有限公司承德分公司 | A kind of LF Water-cooling furnace cover of ladle refining furnace charge cavity gas blow pipe |
| CN206127353U (en) * | 2016-11-08 | 2017-04-26 | 河钢股份有限公司承德分公司 | LF stove gas protective device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489289A (en) * | 2018-05-11 | 2018-09-04 | 河钢股份有限公司承德分公司 | Electrode hole flue gas anti-overflow device and its method when one kind is for the production of LF stoves |
| CN114754583A (en) * | 2022-03-16 | 2022-07-15 | 国网辽宁省电力有限公司鞍山供电公司 | Method for supplementing carbon dioxide for fused magnesia furnace and integrated furnace cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170919 |