CN106702089A - Dust exhausting technology and device for wire feeding station of ladle furnace (LF) - Google Patents
Dust exhausting technology and device for wire feeding station of ladle furnace (LF) Download PDFInfo
- Publication number
- CN106702089A CN106702089A CN201710031213.4A CN201710031213A CN106702089A CN 106702089 A CN106702089 A CN 106702089A CN 201710031213 A CN201710031213 A CN 201710031213A CN 106702089 A CN106702089 A CN 106702089A
- Authority
- CN
- China
- Prior art keywords
- wire feeding
- dust
- silk
- movable
- dust removal
- 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.)
- Granted
Links
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention provides a dust exhausting technology and device for a wire feeding station of a ladle furnace (LF). According to the dust exhausting technology disclosed by the invention, a movable dust exhaust hood is arranged on each of two wire feeding stations of the LF, and each movable dust exhaust hood is arranged in a half-overhead manner; the movable dust exhaust hoods run on overhead rails and ground rails; and the overhead rails are arranged on a platform of the LF, and the ground rails are arranged on a terrace. When molten steel is used for wire feeding, the movable dust exhaust hood collects smoke and dust; and after wire feeding is completed, each motor drives the corresponding movable hood to leave the corresponding wire feeding position, so that lifting of a molten steel tank by a running vehicle is facilitated. According to the dust exhausting technology and device disclosed by the invention, a manner that the half-overhead type movable dust exhaust hoods are separately arranged on the two wire feeding stations of the LF is creatively provided, the technology and the structure are reasonable, and the problem that during the process of wire feeding, smoke and dust are generated is well solved; and dust exhausting facilities of the wire feeding stations of the LF are mainly used for solving the smoke and dust generated when entering a working procedure of soft blow wire feeding after being refined, and the operation safety of a workshop is improved.
Description
Technical field
The present invention relates to belong to process for making and field of Environment Protection, more particularly to LF stoves feed silk station dust collecting process and device.
Background technology
LF (Ladle Furnace, ladle furnace) stove is the refining equipment that the initial stage seventies grows up in Japan, equipment letter
Single, investment cost is low, and operation is flexibly widely used well and development with refining effect.Steel grade handled by LF stoves is almost
It is related to all steel grades from special steel to general steel, the need for visual quality is controlled in production, using different technological operating systems.
LF stove technical process：
(1) be hung to the ladle that converter is tapped on refined molten steel tank car by driving, connects ladle BOTTOM ARGON BLOWING and quickly connects
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 it is dividedly in some parts slag charge.
(3) after heating reaches predetermined value, power failure carries out alloy regulation, and alloy regulation is finished carries out thermometric, sampling.
(4) fall after electrode adds heat, ladle car is opened to silk station is fed, carried out feeding at silk according to steel grade quality requirement
Reason.
(5) after hello silk has been processed, molten steel strong mixing several minutes carry out molten steel and take off [S], further make molten steel composition, temperature equal
Homogenize, and to input carbonization rice husk or other heat preserving agents in ladle.
In LF stoves feed silk processing procedure, the vapour pressure of the calcium constituent in silk volume is higher, easily vaporization, 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 is splashed, produce volume of smoke.
The LF stoves of most domestic steel mill are 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, and substantial amounts of flue dust is easily produced when feeding silk at the scene, and not only Field Force is good for
Health constitutes a threat to, and also affects the operation sight line of driving personnel in workshop.
The content of the invention
Silk station dust collecting process and device are fed the invention provides a kind of LF stoves, setting shifting on silk station is fed for two in LF stoves
Dynamic dust removal installation, not only solves and feeds generation volume of smoke problem during silk, and improve the safety of driving plant operations
Property.
A kind of LF stoves of the present invention feed silk station dust collecting process, and two, LF stoves to be fed and set movable dust removal on silk station
Cover, movable dust removal cover arranges that the movable dust removal covered on and run on aerial conveyor, ground rail, wherein high using half overhead system
Mounted track is arranged on LF stove platforms, and ground rail is arranged in terrace.
Preferably, the movable dust removal covers on when molten steel feeds silk and flue dust is trapped, and feeds after the completion of silk, and motor drives and moves
Dynamic cover leaves feeds silk position, handling of the convenient driving to ladle.
A kind of LF stoves of the present invention feed silk station dust arrester, and movable dust removal cover is half overhead arrangement, aerial conveyor
It is arranged on LF stove platforms, ground rail is arranged in terrace.
Preferably, the movable dust removal is moved between covering on the position fed between silk position and handling ladle.
Preferably, the movable dust removal cover body is divided into two-layer, and it is thick inside to set 25~60mm of heat shield liner, outward for steel plate 12~
16mm is thick.
Preferably, the movable dust removal cover is driven using reducing motor.
The present invention creatively proposes to set half overhead system movable dust removal cover, technique and knot on two hello silk stations of LF stoves
Structure rationally, solves the problems, such as to feed generation flue dust during silk well.LF stoves feed silk station dust removal installation mainly for solving essence
Enter soft blow after refining and feed the flue dust produced during wire process, and improve the security of driving plant operations.The present invention is not only fitted
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.
Brief description of the drawings
Embodiment is described by with reference to accompanying drawings below, features described above of the invention and technological merit will become
More understand and be readily appreciated that.
Fig. 1 is that a kind of LF stoves of the present invention feed silk station dust removal installation craftworks CAD system figure.
Fig. 2 is the A-A profiles of Fig. 1.
Fig. 3 is the B-B profiles of Fig. 1
1. movable dust removal cover；2. low rail；3. ladle car；4. ladle；5. tank car track；6.LF furnace bodies；7. drive a vehicle；
8. trestle high；9. rail high；10. wire feeder；11. electric butterfly valves (one)；12. volumes；13；Main cleaning shaft；14. dedusting branch pipes
(1)；15. electric butterfly valves (two)；16. dedusting branch pipes (two)；17. dust excluding hood heat shield liners；18. dust excluding hood shells；19. deceleration electricity
Machine
Specific embodiment
Embodiment of the present invention described below with reference to the accompanying drawings.One of ordinary skill in the art may recognize that
Arrive, without departing from the spirit and scope of the present invention, can be with a variety of modes or its combination to described
Embodiment is modified.Therefore, accompanying drawing and description are inherently illustrative, rather than the protection for limiting claim
Scope.Additionally, in this manual, accompanying drawing draws not in scale, and identical reference represents identical part.
The present embodiment is described in detail with reference to Fig. 1-3.
Be hung to ladle 4 after tapping on ladle car 3 by shop traveller 7, and ladle car 3 is travelled along tank car track 5
Being stopped to the refining of LF furnace bodies 6 position carries out double refining operation.After refining treatment is complete, ladle car 3 returns to 1# along tank car track 5
Feed silk position to stop, movable dust removal cover 1 moves to 1# hello silks position and stops along the rail high 9 on low rail 2 and trestle high 8, electric butterfly valve
(1) 11 opening, wire feeder 10 is proceeded by feeds silk 12 operations of volume, feeds flue dust removing dust branch pipe () 14, master that silk process is produced
Qualified discharge (concentration of emission requirement after dust removal installation treatment outside workshop is gone in the suction of cleaning shaft 13：≤20mg/m3)。
Be hung to ladle 4 after tapping on ladle car 3 by shop traveller 7, and ladle car 3 is travelled along tank car track 5
Being stopped to the refining of LF furnace bodies 6 position carries out double refining operation.After refining treatment is complete, ladle car 3 returns to 2# along tank car track 5
Feed silk position to stop, movable dust removal cover 1 moves to 2# hello silks position and stops along the rail high 9 on low rail 2 and trestle high, electric butterfly valve
(2) 15 openings, wire feeder 10 is proceeded by feeds silk 12 operations of volume, feeds flue dust removing dust branch pipe (two) 16, master that silk process is produced
The suction of cleaning shaft 13 go dust removal installation to process in the workshop outside after qualified discharge.
The body of movable dust removal cover 1 is made up of dust excluding hood shell 18 and dust excluding hood heat shield liner, by reducing motor drives edge ground
Track 2 and aerial conveyor 9 run.
The movable dust removal cover body is divided into two-layer, inside sets heat shield liner 40mm thickness, is outward steel plate 16mm thick.
Operation principle：Dust excluding hood use half elevated structure pattern, can meet feed silk operate 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 reducing motor and is capable of achieving
Move freely.
The course of work：Ladle car receives tapping ladle-ladle car and opens to refining station-LF stove refining-LF stoves
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-is driven a vehicle handling ladle to conticaster.Wherein 1# feeds silk position or 2# feeds silk position according to process treatment process, difference
Control, can separate work can also be while work.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.All any modifications within the spirit and principles in the present invention, made,
Equivalent, improvement etc., should be included within the scope of the present invention.
Claims (6)
1. a kind of LF stoves feed silk station dust collecting process, it is characterised in that
Two, LF stoves are fed and movable dust removal cover are set on silk station, and movable dust removal cover is arranged using half overhead system, the movable dust removal
Cover on and run on aerial conveyor, ground rail, wherein aerial conveyor is arranged on LF stove platforms, and ground rail is arranged in terrace.
2. a kind of LF stoves according to claim 1 feed silk station dust collecting process, it is characterised in that
The movable dust removal covers on when molten steel feeds silk and flue dust is trapped, and feeds after the completion of silk, and motor drives mobile cover to leave and feeds
Silk position, handling of the convenient driving to ladle.
3. a kind of LF stoves feed silk station dust arrester, it is characterised in that
Movable dust removal cover is half overhead arrangement, and aerial conveyor is arranged on LF stove platforms, and ground rail is arranged in terrace.
4. a kind of LF stoves according to claim 3 feed silk station dust arrester, it is characterised in that
The movable dust removal is moved between covering on the position fed outside silk position and handling ladle.
5. a kind of LF stoves according to claim 3 feed silk station dust arrester, it is characterised in that
The movable dust removal cover body is divided into two-layer, inside sets 25~60mm of heat shield liner thickness, is outward 12~16mm of steel plate thick.
6. a kind of LF stoves according to claim 3 feed silk station dust arrester, it is characterised in that
The movable dust removal cover is driven using reducing 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 true CN106702089A (en) | 2017-05-24 |
| CN106702089B CN106702089B (en) | 2019-02-19 |
Family
ID=58907579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710031213.4A Active CN106702089B (en) | 2017-01-17 | 2017-01-17 | A kind of LF furnace hello silk station dust collecting process and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106702089B (en) |
Cited By (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 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4465558A (en) * | 1983-08-22 | 1984-08-14 | Koritsu Machine Industries Limited | Coke guide car having load distributing structure |
| 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 |
| CN106270476A (en) * | 2016-10-28 | 2017-01-04 | 中冶华天南京工程技术有限公司 | Portable casting residue single treatment process and 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 |
| 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 |
-
2017
- 2017-01-17 CN CN201710031213.4A patent/CN106702089B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4465558A (en) * | 1983-08-22 | 1984-08-14 | Koritsu Machine Industries Limited | Coke guide car having load distributing structure |
| 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 |
| CN106270476A (en) * | 2016-10-28 | 2017-01-04 | 中冶华天南京工程技术有限公司 | Portable 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 |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106702089B (en) | 2019-02-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105202907B (en) | Scrap steel preheating type electric arc furnaces and the method for improving side wall charging electric arc stove heat cold-zone | |
| CN104034175B (en) | A kind of energy-saving and emission-reducing sintering process | |
| US8562713B2 (en) | Flexible minimum energy utilization electric arc furnace system and processes for making steel products | |
| CN104962680B (en) | A kind of converter dry dedusting venting of dust explosion control method | |
| CN106702089A (en) | Dust exhausting technology and device for wire feeding station of ladle furnace (LF) | |
| CN103776270A (en) | Calcium carbide sensible heat recovery equipment and method for calcium carbide furnace | |
| CN107236841A (en) | The heater and heating means of a kind of use converter gas waste-heat steel scrap | |
| CN101880744B (en) | Decarburization converter exhaust gas treatment method utilizing dry-method dust-removing process for electric precipitation without explosion release | |
| CN101161776A (en) | Controlled auto-pumping type coke oven side entrance smoke gas collecting apparatus | |
| CN206477007U (en) | A kind of LF stoves feed silk station dust arrester | |
| CN201969720U (en) | Smoke gathering device for ladle refining furnace | |
| CN206052061U (en) | A kind of stainless steel slag slow cooling processing meanss | |
| CN105217631B (en) | The method and its system of clean environment firendly semicoke formula continuous production carbon disulfide | |
| CN206244828U (en) | Converter feeding device | |
| CN203798180U (en) | Calcium carbide furnace calcium carbide sensible heat recovery device | |
| CN210229496U (en) | Ferrosilicon furnace waters indisputable flue gas collection processing apparatus | |
| CN104949533B (en) | A kind of recovery system of electric furnace zinc smelting tail gas and its control method | |
| US2618548A (en) | Closed top side door | |
| CN206751860U (en) | The simple third dedusting system of converter based on a tank | |
| CN205556759U (en) | Cleaning type continuous type nitrogen carbon oxygen composite treatment system | |
| CN201530837U (en) | CAS-OB dedusting device | |
| CN207646233U (en) | The smoke collecting device of converter cinder ladle tipple | |
| CN207520807U (en) | A kind of steel scrap cutting dedusting device | |
| CN106978518A (en) | The simple third dedusting system and method for converter based on a tank | |
| US1417538A (en) | Converter plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |