CN106702089B - A kind of LF furnace hello silk station dust collecting process and device - Google Patents
A kind of LF furnace hello silk station dust collecting process and device Download PDFInfo
- Publication number
- CN106702089B CN106702089B CN201710031213.4A CN201710031213A CN106702089B CN 106702089 B CN106702089 B CN 106702089B CN 201710031213 A CN201710031213 A CN 201710031213A CN 106702089 B CN106702089 B CN 106702089B
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- silk
- dust removal
- furnace
- feeds
- station
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/064—Dephosphorising; Desulfurising
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The present invention provides a kind of LF furnaces to feed silk station dust collecting process and device, the technique is two, LF furnace and feeds setting movable dust removal cover on silk station, it feeds for two, LF furnace and movable dust removal cover is set on silk station, movable dust removal cover is arranged using half overhead system, the movable dust removal covers on aerial conveyor, runs on ground rail, wherein aerial conveyor is arranged on LF furnace platform, and ground rail is arranged in terrace.The movable dust removal is covered on when molten steel feeds silk and is trapped to flue dust, and after the completion of feeding silk, the mobile cover of motor driven, which leaves, feeds silk position, facilitates the handling driven a vehicle to ladle.The present invention, which creatively proposes to feed at two, LF furnace on silk station, is arranged half overhead system movable dust removal cover, and process and structure is reasonable, has well solved and has led to the problem of flue dust during feeding silk.LF furnace feeds silk station dust removal installation mainly for solving to enter the flue dust generated when wire process is fed in soft blow after refining, and improves the safety of driving plant operations.
Description
Technical field
The present invention relates to process for making and environment protection field is belonged to, in particular to LF furnace feeds silk station dust collecting process and device.
Background technique
LF (Ladle Furnace, ladle furnace) furnace is the refining equipment to grow up in Japan at the initial stage seventies, equipment letter
Single, investment cost is low, and flexible operation and refining effect are widely used and develop well.Steel grade handled by LF furnace is almost
It is related to all steel grades from special steel to general steel, the needs that visual quality controls in production, using different technological operating systems.
LF furnace technical process:
(1) ladle that converter is tapped is hung on refined molten steel tank car by driving, connects the fast quick access of ladle BOTTOM ARGON BLOWING
Head starts Argon；
(2) refined molten steel tank car is opened to heating station, falls ladle bell, and thermometric, sampling are fallen electrode and heated,
And slag charge is added portionwise.
(3) after heating reaches predetermined value, have a power failure and carry out alloy adjusting, alloy adjusting, which finishes, to be carried out thermometric, samples.
(4) it falls after electrode adds heat, ladle car is opened to silk station is fed, feed at silk according to steel grade quality requirement
Reason.
(5) after hello silk has been handled, several minutes of progress molten steel of molten steel strong mixing take off [S], further make molten steel composition, temperature equal
It homogenizes, and puts into carbonization rice husk or other heat preserving agents into ladle.
It is fed in silk treatment process in LF furnace, the vapour pressure of the calcium constituent in silk volume is higher, easily vaporizes, following and diffuse into
Calcium bubble floating in molten steel is to slag-gold interface or slag-vapor interface；Calcium constituent easily with FeO, Al2O3、SiO2And oxygen reaction is simultaneously
Big calorimetric is released, the calcium line top of the slag is fed and splashes, generate volume of smoke.
The LF furnace of most domestic steel mill is only provided with the 4th hole or mobile cover dedusting method in refining position, but in soft blow rank
Duan Jinhang does not set dust excluding hood when feeding silk operation, is easy to produce a large amount of flue dust when feeding silk at the scene, is not only good for Field Force
Health constitutes a threat to, and also affects the operation sight of driving personnel in workshop.
Summary of the invention
The present invention provides a kind of LF furnaces to feed silk station dust collecting process and device, feeds to be arranged on silk station at two, LF furnace and move
Dynamic dust removal installation not only solves and leads to the problem of volume of smoke during feeding silk, and improves the safety of driving plant operations
Property.
A kind of LF furnace of the present invention feeds silk station dust collecting process, feeds for two, LF furnace and movable dust removal is arranged on silk station
Cover, movable dust removal cover is using half overhead system arrangement, and the movable dust removal covers on aerial conveyor, runs on ground rail, wherein high
Mounted track is arranged on LF furnace platform, and ground rail is arranged in terrace.
Preferably, the movable dust removal is covered on when molten steel feeds silk and is trapped to flue dust, and after the completion of feeding silk, motor driven is moved
Dynamic cover, which leaves, feeds silk position, facilitates the handling driven a vehicle to ladle.
A kind of LF furnace of the present invention feeds silk station dust-extraction unit, and movable dust removal cover is half overhead arrangement, aerial conveyor
It is arranged on LF furnace platform, ground rail is arranged in terrace.
Preferably, the movable dust removal is covered between the position fed between silk position and handling ladle and is moved.
Preferably, the movable dust removal cover body is divided into two layers, and it is thick inside to set heat shield liner 25~60mm, outside for steel plate 12~
16mm is thick.
Preferably, the movable dust removal cover is driven using decelerating motor.
The present invention, which creatively proposes to feed at two, LF furnace on silk station, is arranged half overhead system movable dust removal cover, technique and knot
Structure is reasonable, has well solved and has led to the problem of flue dust during feeding silk.LF furnace feeds silk station dust removal installation mainly for solving essence
Enter soft blow after refining and feed the flue dust generated when wire process, and improves the safety of driving plant operations.The present invention not only fits
Newly-built workshop is closed, the upgrading of existing steelshop is also suitable for, there is good application prospect, good economic benefit and society
Meeting benefit, it is very worth to be subject to promotion and application in steel mill upgrading project from now on.
Detailed description of the invention
By the way that embodiment is described in conjunction with following accompanying drawings, features described above of the invention and technological merit will become
More understands and be readily appreciated that.
Fig. 1 is that a kind of LF furnace of the present invention feeds silk station dust removal installation craftworks CAD system figure.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 1
1. movable dust removal cover；2. low rail；3. ladle car；4. ladle；5. tank car track；6.LF furnace body；7. driving；
8. high trestle；9. high rail；10. wire feeder；11. electric butterfly valve (one)；12. volume；13；Main cleaning shaft；14. dedusting branch pipe
(1)；15. electric butterfly valve (two)；16. dedusting branch pipe (two)；17. dust excluding hood heat shield liner；18. dust excluding hood shell；19. slow down electricity
Machine
Specific embodiment
Embodiment of the present invention described below with reference to the accompanying drawings.Those skilled in the art may recognize that
It arrives, it without departing from the spirit and scope of the present invention, can be with a variety of different modes or combinations thereof to described
Embodiment is modified.Therefore, attached drawing and description are regarded as illustrative in nature, rather than the protection for limiting claim
Range.In addition, in the present specification, attached drawing is drawn not in scale, and identical appended drawing reference indicates identical part.
The present embodiment is described in detail below with reference to Fig. 1-3.
Ladle 4 after tapping is hung on ladle car 3 by shop traveller 7, and ladle car 3 is travelled along tank car track 5
Position, which is refined, to LF furnace body 6 stops progress double refining operation.After refining treatment is complete, ladle car 3 returns to 1# along tank car track 5
It feeds silk position to stop, movable dust removal cover 1 moves to hello the silk position 1# along the high rail 9 on low rail 2 and high trestle 8 and stops, electric butterfly valve
(1) 11 opening, wire feeder 10 start feed silk 12 operations of volume, feed the flue dust of silk process generation through dedusting branch pipe (one) 14, master
Qualified discharge (concentration of emission requirement :≤20mg/m after dust removal installation processing outside workshop is gone in the suction of cleaning shaft 133)。
Ladle 4 after tapping is hung on ladle car 3 by shop traveller 7, and ladle car 3 is travelled along tank car track 5
Position, which is refined, to LF furnace body 6 stops progress double refining operation.After refining treatment is complete, ladle car 3 returns to 2# along tank car track 5
It feeds silk position to stop, movable dust removal cover 1 moves to hello the silk position 2# along the high rail 9 on low rail 2 and high trestle and stops, electric butterfly valve
(2) 15 openings, wire feeder 10 start feed silk 12 operations of volume, feed the flue dust of silk process generation through dedusting branch pipe (two) 16, master
Qualified discharge after the suction of cleaning shaft 13 goes dust removal installation to handle in the workshop outside.
1 ontology of movable dust removal cover is made of dust excluding hood shell 18 and dust excluding hood heat shield liner, by decelerating motor drives edge ground
Track 2 and aerial conveyor 9 are run.
The movable dust removal cover body is divided into two layers, inside sets heat shield liner 40mm thickness, thick for steel plate 16mm outside.
Working principle: dust excluding hood use half elevated structure pattern, can satisfy feed silk operation when volume of smoke trapping and
The lifting of ladle before and after LF refining, it is ensured that maximum Environmental-protecting dust-removing space；Dust excluding hood is driven using decelerating motor and be can be achieved
It moves freely.
The course of work: ladle car receives tapping ladle-ladle car and opens to refining station-LF furnace refining-LF furnace
Electrode lifting-ladle car open back feed silk position (1# or 2#)-dust excluding hood move to feed silk position (1# or 2#)-feed silk operate-remove
Dust hood remove-drives a vehicle handling ladle to conticaster.Wherein 1# feeds silk position or 2# feeds silk position according to process treatment process, respectively
Control can separate and work or work at the same time.
The above description is only a preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of LF furnace feeds silk station dust collecting process, which is characterized in that
It feeds for two, LF furnace and movable dust removal cover is set on silk station, movable dust removal cover is arranged using half overhead system, the movable dust removal
It covers on aerial conveyor, run on ground rail, wherein aerial conveyor is arranged on LF furnace platform, and ground rail is arranged in terrace；
After refining treatment is complete, ladle car is moved to hello silk station along track and stops, and carries out feeding silk；
When carry out feed silk operation when, the movable dust removal cover along ground rail and aerial conveyor be moved to feed silk station, to feed
The flue dust that silk process generates is trapped, and is discharged through dedusting branch pipe, main cleaning shaft, then through dust removal installation processing row outside workshop
It puts；
After the completion of feeding silk, motor driven movable dust removal cover, which leaves, feeds silk station, facilitates the handling driven a vehicle to ladle.
2. a kind of LF furnace feeds silk station dust-extraction unit, which is characterized in that
Movable dust removal cover is half overhead arrangement, and aerial conveyor is arranged on LF furnace platform, and ground rail is arranged in terrace, the shifting
Dynamic dust excluding hood is two, is separately positioned on two and feeds at silk station.
3. a kind of LF furnace according to claim 2 feeds silk station dust-extraction unit, which is characterized in that
The movable dust removal is covered between the position fed except silk position and handling ladle and is moved.
4. a kind of LF furnace according to claim 2 feeds silk station dust-extraction unit, which is characterized in that
The movable dust removal cover body is divided into two layers, inside sets heat shield liner 25~60mm thickness, thick for 12~16mm of steel plate outside.
5. a kind of LF furnace according to claim 2 feeds silk station dust-extraction unit, which is characterized in that
The movable dust removal cover is driven using decelerating motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710031213.4A CN106702089B (en) | 2017-01-17 | 2017-01-17 | A kind of LF furnace hello silk station dust collecting process and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710031213.4A CN106702089B (en) | 2017-01-17 | 2017-01-17 | A kind of LF furnace hello silk station dust collecting process and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106702089A CN106702089A (en) | 2017-05-24 |
| CN106702089B true CN106702089B (en) | 2019-02-19 |
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| CN201710031213.4A Active CN106702089B (en) | 2017-01-17 | 2017-01-17 | A kind of LF furnace hello silk station dust collecting process and device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107447077A (en) * | 2017-08-23 | 2017-12-08 | 浙江杭真能源科技股份有限公司 | Fume dust remover and its dust removal method during vacuum refining furnace hello silk |
| CN108424991A (en) * | 2018-05-28 | 2018-08-21 | 中冶京诚工程技术有限公司 | Mobile mixer taps a blast furnace a dust-extraction unit |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU1817583A (en) * | 1983-08-22 | 1985-02-28 | Koritsu Machine Industries Ltd. | Improvement in body structure of coke guide cars |
| CN201183805Y (en) * | 2008-04-28 | 2009-01-21 | 中冶华天工程技术有限公司 | Bidirectional moving combined type smoke dust trapping cover |
| CN201231111Y (en) * | 2008-07-11 | 2009-05-06 | 中钢集团天澄环保科技股份有限公司 | Movable dust-resource control device of oxygen cutting operation |
| CN205473867U (en) * | 2016-03-08 | 2016-08-17 | 中冶南方工程技术有限公司 | LF stove dust pelletizing system |
| CN205874477U (en) * | 2016-08-08 | 2017-01-11 | 中冶华天工程技术有限公司 | LF refining furnace dust collector |
| CN106270476B (en) * | 2016-10-28 | 2018-09-14 | 中冶华天南京工程技术有限公司 | Mobile casting residue single treatment process and system |
| CN206477007U (en) * | 2017-01-17 | 2017-09-08 | 中冶华天工程技术有限公司 | A kind of LF stoves feed silk station dust arrester |
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