CN107447077A - Fume dust remover and its dust removal method during vacuum refining furnace hello silk - Google Patents
Fume dust remover and its dust removal method during vacuum refining furnace hello silk Download PDFInfo
- Publication number
- CN107447077A CN107447077A CN201710727870.2A CN201710727870A CN107447077A CN 107447077 A CN107447077 A CN 107447077A CN 201710727870 A CN201710727870 A CN 201710727870A CN 107447077 A CN107447077 A CN 107447077A
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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
- C21C7/10—Handling in a vacuum
-
- 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
- C21C7/0056—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 using cored wires
-
- 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
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The application be related to a kind of vacuum refining furnace feed silk during fume dust remover and its dust removal method, fume dust remover includes sealing vacuum chamber device, vacuum lead system, sealing vacuum chamber device is connected by vacuum lead system with vacuum pump system road, it is characterized in that it is additionally provided with flue gas ash removal pipe-line system, sealing vacuum chamber device is connected by vacuum lead system with flue gas ash removal pipe-line system, dust arrester, dust arrester is opened when vacuum refining furnace feeds silk, dedusting is carried out to the vacuum chamber to work.The application also includes the dust removal method of above-mentioned fume dust remover.The application equipment is simple, operates easy, small investment, be safe and reliable to operation, and a clean working environment is provided for vacuum refining station.
Description
Technical field
The application is related to a kind of vacuum refining furnace and feeds fume dust remover and its dust removal method during silk, main to be applicable
Protected in metallurgy environment.
Background technology
Vacuum refining furnace wire feeding process is the furnace outer refining technology to grow up the 1980s.In Fruit storage
After the completion of, it be according to different steel grades and quality requirement, by wire feeder to add in the molten steel of ladle a certain amount of Ca-Si silks,
Aluminium wire, rare-earth wires or certain B alloy wire, under the kinetics function of argon gas stirring, the deoxidation to molten steel can be effectively accomplished, taken off
Sulphur, removal is mingled with, changes and is mingled with form and accurately finely tunes alloying component, and yield of alloy height, the element of feeding is accurate, changes
Kind metallographic structure, the performance for improving metal to be treated, improve its cleanliness factor etc., so as to improve the quality of steel and performance.
With the rapid development of science and technology, steel performance and quality are increasingly taken seriously, STEELMAKING PRODUCTION rate and cost etc.
Requirement also more and more higher.In order to improve product quality, productivity ratio and reduce production cost, wire feeding process changes the inherence of molten steel
Quality, mobility and continuous flow procedure；Its not independent holding time processing, shorten and pour steel and secondary oxidation occurs for molten steel
Time；Ladle long nozzle can be avoided to block.The steel grade that chemical composition ranges are very narrow, purposes is important can be produced by feeding silk, and
It can guarantee that the homogeneity of the steel mechanics performance of different grades of steel.Being combined using ladle wire feeding and Argon can be in the short period of time
Refining operation is completed, is to obtain high-purity, high uniformity, high-precision steel, ensures the important measures of balanced production.
It is after the completion of working as vacuum refining, to close main vacuum valve that vacuum refining furnace, which feeds silk method, at present, opens air valve, makes true
Empty room is returned to atmospheric pressure, lifts vacuum cover, and vacuum is moved to standby station by vacuum cover car, and operation wire feeder presses technological requirement
Feed a certain amount of Ca-Si silks, aluminium wire, rare-earth wires or certain B alloy wire to ladle, to ladle wire feeding machine in the process of running, its
The line of addition can produce substantial amounts of flue dust with molten steel reaction, because not setting dust arrester in vacuum refining station, feed silk process
Caused flue gas is all emitted in workshop, and the vacuum refining furnace feeds silk method can not meet clear production requirement, main
Drawback is wanted to be embodied in the following aspects：
（1）Substantial amounts of waste gas and flue dust, proportion of these exhaust gas and smokes in environmental pollution caused by meeting during to ladle wire feeding
In account for greatly, containing a large amount of solid particles in waste gas, the PM2.5 mass in the workshop made in air seriously surpasses
Mark, produces serious influence to the health of direct labor, and flue gas can be to atmospheric environment after being diffused into from workshop outside factory building
Quality causes serious pollution.
（2）Caused substantial amounts of waste gas produces work also containing pernicious gases such as SO2, NOx, CO during to ladle wire feeding
People's long-term work produces serious shadow in the environment containing pernicious gases such as SO2, NOx, CO, to the health of direct labor
Ring, cause the disease rates such as lung cancer, the leukaemia of worker to greatly increase.
The content of the invention
The technical problem that the application solves is to overcome existing vacuum refining furnace to feed the silk process technology that does not have flue gas ash removal to lack
Sunken, to be provided during vacuum refining furnace hello silk, a kind of equipment is simple, operation is easy, small investment, vacuum safe and reliable to operation
Fume dust remover and its dust removal method during refining furnace hello silk.
Technical scheme includes used by the application solves above-mentioned technical problem：
Vacuum refining furnace feeds the fume dust remover during silk, including sealing vacuum chamber device, vacuum lead system, flue gas
Dedusting pipe-line system, sealing vacuum chamber device are connected by vacuum lead system with vacuum pump system road, sealing vacuum chamber dress
Put and be connected by vacuum lead system with flue gas ash removal pipe-line system, dust arrester, open and remove when vacuum refining furnace feeds silk
Dirt device, dedusting is carried out to the vacuum chamber to work.
Sealing vacuum chamber device of the present invention includes vacuum tank, vacuum cover, Splashproof cover, vacuum cover car, Pneumatic reverse turning bed
Valve, vacuum tank coordinate with vacuum cover, and vacuum tank and vacuum lead system connectivity, vacuum tank form one after being closed with vacuum cover
The vacuum chamber of integral sealing, vacuum tank inside, which is built, refractory material, and vacuum interior surface, which is built, to be had refractory material and hang in vacuum
On lid car, Splashproof cover is formed and hung inside vacuum cover using refractory material laying or water cooled steel pipe dish system, treats that ladle is put into
After vacuum tank, vacuum tank closes with vacuum cover, as an integral sealing container, is provided with vacuum cover and feeds silk hole, pneumatically turned over
Plate valve is arranged on vacuum cover and coordinated with feeding silk hole, feeds silk hole for opening or closing, vacuum cover car is arranged on vacuum tank two
On the track of side, for lifting vacuum cover and Mobile vacuum lid, ladle is facilitated to pass in and out.
Vacuum tank of the present invention is made up of A stations vacuum tank, B station vacuum tanks, A stations vacuum tank, B station vacuum tanks
Coordinate with vacuum cover, A stations vacuum tank closes with vacuum cover forms A station vacuum chambers, and B stations vacuum tank closes with vacuum cover
Form B station vacuum chambers, A stations vacuum tank, B stations vacuum tank with vacuum lead system connectivity.
Vacuum lead system of the present invention includes vacuum pipe, mobile handoff device, main vacuum cutting-off valve, broken
Empty valve, main vacuum cutting-off valve is on the vacuum pipe between sealing vacuum chamber device and vacuum pump system, mobile handoff dress
Setting in sealing vacuum chamber device and main vacuum cutting-off valve between vacuum pipe on, for switch two vacuum tanks vacuum
Refining treatment, air valve is on the vacuum pipe between main vacuum cutting-off valve and mobile handoff device.When molten steel vacuum fine
After the completion of refining processing, main vacuum cutting-off valve is closed, air valve is opened, the pressure in vacuum chamber is returned to atmospheric pressure.
Pneumatic flap valve of the present invention includes turnover panel and drive cylinder, and turnover panel, drive cylinder are rotatably installed in very
Sky is covered, and turnover panel is hinged with drive cylinder.When the completion of vacuum refining treatment, main vacuum cutting-off valve is closed, air valve is opened, makes
Pressure in vacuum chamber returns to atmospheric pressure, using compressed air-driven cylinder, opens the turnover panel fed on silk hole, starts and feed silk
Machine, by the silk fed silk hole and needs are fed into ladle at the top of vacuum cover, until that completes to need feeds silk quantity.
Flue gas ash removal pipe-line system of the present invention includes A station pneumatics switch valve, flue, B station pneumatics and opened
Valve is closed, A station pneumatics switch valve is used for opening or closing the connection between A stations vacuum chamber and dust pelletizing system, and B station pneumatics are opened
Valve 18 is closed to be used for opening or closing the connection between B stations vacuum chamber and dust pelletizing system.When wire feeder is to ladle wire feeding front opening
Need to feed the pneumatic on-off valve on flue before the vacuum tank of silk, until completing to feed silk, wait molten steel to stir several minutes, make feeding
Silk and molten steel fully react after, open vacuum cover, vacuum cover is moved on to standby station by vacuum cover car, the gas closed on flue
Dynamic switch valve, ladle is then hung away to casting or continuous casting station operation.Silk and flue gas caused by molten steel reaction during hello silk
Dust arrester is sucked into by flue, is discharged into after dust arrester is handled in air.
Technical scheme is also including the cigarette during vacuum refining furnace hello silk used by the application solves above-mentioned technical problem
Gas dust removal method, using above-mentioned fume dust remover and follow the steps below：
（1）A processing stations feed silk operation：
A) ladle for filling molten steel is hung in into A station vacuum tanks, mobile handoff device is moved to A stations vacuum tank and vavuum pump system
System connection；
B) vacuum cover car is by vacuum cover and A station vacuum tank closing seams；
C) main vacuum cutting-off valve is opened, closes A station pneumatics switch valve, B station pneumatic switch valves, opens vacuum pump system,
Vacuum refining processing is carried out to the molten steel of A stations；
D) main vacuum cutting-off valve is closed, air valve is opened, sky is carried out brokenly to A station vacuum chambers, closes down vacuum pump system, is closed
Air valve；
E) A station pneumatic switch valves are opened, start dust arrester, open Pneumatic flap valve, driving A station threads feeding apparatus is fed
Thread, caused flue gas is drawn into dust arrester by flue during hello silk carries out dust removal process；
F) after the completion of A stations feed silk, A station pneumatic switch valves are closed, lift vacuum cover, vacuum cover car reaches standby station, A works
Handle ladle well and hang casting station in position；
（2）B processing stations feed silk operation：
A) ladle for filling molten steel is hung in into B station vacuum tanks, mobile handoff device is moved to B stations vacuum tank and vacuum
Pumping system connects；
B) vacuum cover car is by vacuum cover and B station vacuum tank closing seams；
C) main vacuum cutting-off valve is opened, closes A station pneumatics switch valve, B station pneumatic switch valves, opens vavuum pump system
System, vacuum refining processing is carried out to the molten steel of B stations；
D) main vacuum cutting-off valve is closed, air valve is opened, sky is carried out brokenly to B station vacuum chambers, closes down vacuum pump system,
Close air valve；
E) B station pneumatic switch valves are opened, B station vacuum chambers connect with dust arrester, open Pneumatic flap valve, drive B
Station threads feeding apparatus is carried out feeding silk, and caused flue gas is drawn into dust arrester by flue during hello silk is carried out
Dust removal process；
F) after the completion of B stations feed silk, B station pneumatic switch valves are closed, lift vacuum cover, vacuum cover car reaches standby station, B
The ladle that station is handled well hangs casting station.
A kind of vacuum refining furnace of the present invention feed silk during fume dust remover and its dust removal method have with
Lower advantage：Equipment is simple, operates easy, small investment, be safe and reliable to operation, and a clean job is provided for vacuum refining station
Environment.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present application.
Embodiment
Referring to Fig. 1, a kind of vacuum refining furnace of the embodiment of the present invention feeds the fume dust remover during silk, including sealing is very
Empty room device, vacuum lead system, flue gas ash removal pipe-line system；Sealing vacuum chamber device is by vacuum lead system and very
Empty pumping system road connection, sealing vacuum chamber device are connected by vacuum lead system and flue gas ash removal pipe-line system, dust arrester
Connect.Dust arrester uses the existing LF stoves deduster of factory or dust remover, without sole investment equipment.
The sealing vacuum chamber device includes A stations vacuum tank 1, ladle 2, Splashproof cover 3, vacuum cover 4, vacuum cover car 6, gas
Dynamic flap valve 7, B stations vacuum tank 14, station is handled in A（Fig. 1 left sides）When A stations vacuum tank 1 closed with vacuum cover 4 after conduct
One integral sealing container（A station vacuum chambers）, the B stations vacuum tank 14 when B handles station（On the right of Fig. 1）Closed with vacuum cover 4
An integral sealing container is used as after upper（B station vacuum chambers）, building inside two vacuum tanks and a vacuum cover 4 has fire proofed wood
Material, Splashproof cover 3 are formed and hung inside vacuum cover 4 using refractory material laying or water cooled steel pipe dish system, and Pneumatic flap valve 7 is pacified
On vacuum cover 4, vacuum cover car 6 is arranged on the track of two vacuum tank both sides, for lifting vacuum cover 4 and Mobile vacuum
Lid 4.
Vacuum lead system includes A stations vacuum pipe 8, mobile handoff device 9, connection vacuum pipe 10, air valve
11st, main vacuum cutting-off valve 12, B stations vacuum pipe 13.Mobile handoff device 9 is using all-electric/all-hydraulic/electro-hydraulic mixing three
Kind drive pattern, main vacuum cutting-off valve 12 is between sealing vacuum chamber and vacuum pump system, and mobile handoff device 9 is positioned at close
Seal between vacuum chamber and main vacuum cutting-off valve 12, for switching the vacuum refining of A stations vacuum tank 1 and B stations vacuum tank 14
Processing.
Threads feeding apparatus includes A stations threads feeding apparatus 5 and B stations threads feeding apparatus 15, and two threads feeding apparatus are identical, includes feeding
Silk machine, wire tray frame, conduit and annex, control operation cabinet.Threads feeding apparatus is arranged on the side of corresponding vacuum tank, respectively into ladle
Molten steel carry out feeding silk work, wire feeder uses mariages wire feeder or four machines.
Pneumatic flap valve 7 is arranged on the top of vacuum cover 4 and fed above silk hole, including valve plate and drive cylinder.
Flue gas ash removal pipe-line system includes A station pneumatics switch valve 16, flue 17, B station pneumatics switch valve 18, A
Station pneumatic switch valve 16 is arranged on the flue 17 between A stations vacuum pipe 8 and dust pelletizing system, and B station pneumatics are opened
Close valve 18 to be arranged on the flue 17 between B stations vacuum pipe 13 and dust pelletizing system, flue 17 is used to connect two
The dust arrester of individual vacuum tank.A station pneumatics switch valve 16 is opened when A processing stations feed silk work, B station pneumatics is closed and opens
Close valve 18；A station pneumatics switch valve 16 is closed when B processing stations feed silk work, opens B station pneumatics switch valve 18.
The present embodiment：Flue gas ash removal method job step during vacuum refining furnace hello silk is as follows：
（1）A processing stations feed silk operation：
A) ladle 2 for filling molten steel is hung in by A stations vacuum tank 1 by the driving in workshop, mobile handoff device 9 is moved to A works
Position (Fig. 1 states), slowly puts down mobile elbow, A stations vacuum tank 1 is passed through A stations vacuum pipe 8 and connection vacuum pipe 10
Connected with vacuum pump system.
B) vacuum cover car 6 is reached on A stations vacuum tank 1, slowly puts down vacuum cover 4, makes vacuum cover 4 and A stations vacuum tank 1
Closing seam.
C) main vacuum cutting-off valve 12 is opened, closes A station pneumatics switch valve 16, B station pneumatics switch valve 18, is opened true
Empty pumping system, the molten steel for handling A station carry out vacuum refining processing, and the vacuum refining that molten steel is completed by technological requirement is handled.
D) main vacuum cutting-off valve 12 is closed, air valve 11 is opened, sky is carried out brokenly to A station vacuum chambers, makes A station vacuum
Room returns to atmospheric pressure, closes down vacuum pump system, closes air valve 11.
E) A station pneumatics switch valve 16 is opened, starts dust arrester, A station vacuum chambers connect with dust arrester, open gas
Dynamic flap valve 7, operation A stations threads feeding apparatus 5, the molten steel for adding the silk of needs in ladle by charging aperture by technological requirement
In, caused flue gas is drawn into dust arrester after processing by flue 17 and is discharged into air during hello silk.
F) after the completion of feeding silk, A station pneumatics switch valve 16 to be closed, lifts vacuum cover 4, vacuum cover car 6 reaches standby station,
Ladle 2 is hung into casting station with driving.
（2）B processing stations feed silk operation：
A) ladle 2 for filling molten steel is hung in by B stations vacuum tank 14 by the driving in workshop, mobile handoff device 9 moves
To B stations, mobile elbow is slowly put down, B stations vacuum tank 14 is passed through B stations vacuum pipe 13 and connection vacuum pipe
10 connect with vacuum pump system.
B) vacuum cover car 6 reaches the station of B stations vacuum tank 14, slowly puts down vacuum cover 4, makes vacuum cover 4 and B station vacuum
The closing seam of tank 14.
C) main vacuum cutting-off valve 12 is opened, closes A station pneumatics switch valve 16 and B station pneumatics switch valve 18, is opened
Vacuum pump system, the molten steel for handling B station carries out vacuum refining processing, at the vacuum refining that molten steel is completed by technological requirement
Reason.
D) main vacuum cutting-off valve 12 is closed, air valve 11 is opened, sky is carried out brokenly to B station vacuum chambers, makes vacuum chamber
Atmospheric pressure is returned to, closes down vacuum pump system, closes air valve 11.
E) B station pneumatics switch valve 18 is opened, B station vacuum chambers connect with dust arrester, open Pneumatic flap valve 7, behaviour
Make B stations threads feeding apparatus 15, the silk of needs is added in the molten steel in ladle by charging aperture by technological requirement, feeds silk process
In caused flue gas by flue 17 be drawn into dust arrester handle after be discharged into air.
F) after the completion of feeding silk, B station pneumatics switch valve 18 to be closed, lifts vacuum cover 4, vacuum cover car 6 reaches standby station,
Ladle 2 is hung into casting station with driving.
Although the present invention is disclosed as above with embodiment, it is not limited to protection scope of the present invention, any ripe
The technical staff of this technology is known, in the change and retouching made without departing from the spirit and scope of the invention, this all should be belonged to
The protection domain of invention.
Claims (7)
1. a kind of vacuum refining furnace feeds the fume dust remover during silk, including sealing vacuum chamber device, vacuum lead system
System, sealing vacuum chamber device are connected with vacuum pump system road by vacuum lead system, removed it is characterized in that being additionally provided with flue gas
Dirt pipe-line system, sealing vacuum chamber device are connected by vacuum lead system with flue gas ash removal pipe-line system, dust arrester, when
Vacuum refining furnace opens dust arrester when feeding silk, and dedusting is carried out to the vacuum chamber to work.
2. vacuum refining furnace feeds the fume dust remover during silk according to claim 1, it is characterized in that：The sealing is true
Empty room device includes vacuum tank, vacuum cover, Splashproof cover, vacuum cover car, Pneumatic flap valve, and vacuum tank coordinates with vacuum cover, vacuum
Tank and vacuum lead system connectivity, vacuum tank form the vacuum chamber of an integral sealing after being closed with vacuum cover, in vacuum tank
Portion, which is built, refractory material, and vacuum interior surface, which is built, to be had refractory material and hang on vacuum cover car, and Splashproof cover uses refractory material
Build by laying bricks or stones or water cooled steel pipe dish system is formed and hung inside vacuum cover, be provided with vacuum cover and feed silk hole, Pneumatic flap valve installation
Coordinate on vacuum cover and with feeding silk hole, vacuum cover car is arranged on the track of vacuum tank both sides.
3. vacuum refining furnace feeds the fume dust remover during silk according to claim 2, it is characterized in that：The vacuum tank
It is made up of A stations vacuum tank, B station vacuum tanks, A stations vacuum tank, B stations vacuum tank coordinate with vacuum cover, A station vacuum
Tank closes with vacuum cover forms A station vacuum chambers, and B stations vacuum tank closes with vacuum cover forms B station vacuum chambers, and A stations are true
Slack tank, B stations vacuum tank with vacuum lead system connectivity.
4. vacuum refining furnace feeds the fume dust remover during silk according to claim 3, it is characterized in that：It is described to vacuumize
Pipe-line system includes vacuum pipe, mobile handoff device, main vacuum cutting-off valve, air valve, and main vacuum cutting-off valve is positioned at close
Seal on the vacuum pipe between vacuum chamber device and vacuum pump system, mobile handoff device is true with master positioned at sealing vacuum chamber device
On vacuum pipe between empty cutting-off valve, vacuum tube of the air valve between main vacuum cutting-off valve and mobile handoff device
On road.
5. vacuum refining furnace feeds the fume dust remover during silk according to claim 3, it is characterized in that：Described flue gas
Dedusting pipe-line system includes A station pneumatics switch valve, flue, B station pneumatic switch valves, and A station pneumatic switch valves are used for
The connection between A stations vacuum chamber and dust pelletizing system is opened or closed, B station pneumatics switch valve 18 is used for opening or closing B works
Connection between position vacuum chamber and dust pelletizing system.
6. vacuum refining furnace feeds the fume dust remover during silk according to claim 2, it is characterized in that：Described is pneumatic
Flap valve includes turnover panel and drive cylinder, and turnover panel, drive cylinder are rotatably installed on vacuum cover, and turnover panel is cut with scissors with drive cylinder
Connect.
7. the fume dust remover that vacuum refining furnace described in a kind of claim 3 to 5 any claim feeds during silk removes
Dust collecting method, it is characterized in that following the steps below：
（1）A processing stations feed silk operation：
The ladle for filling molten steel is hung in into A station vacuum tanks, mobile handoff device is moved to A stations vacuum tank and vacuum pump system
Connection；
Vacuum cover car is by vacuum cover and A station vacuum tank closing seams；
Main vacuum cutting-off valve is opened, closes A station pneumatics switch valve, B station pneumatic switch valves, vacuum pump system is opened, to A
The molten steel of station carries out vacuum refining processing；
Main vacuum cutting-off valve is closed, air valve is opened, sky is carried out brokenly to A station vacuum chambers, closes down vacuum pump system, is closed broken
Empty valve；
A station pneumatic switch valves are opened, start dust arrester, open Pneumatic flap valve, driving A station threads feeding apparatus is fed
Thread, caused flue gas is drawn into dust arrester by flue during hello silk carries out dust removal process；
After the completion of A stations feed silk, A station pneumatic switch valves are closed, lift vacuum cover, vacuum cover car reaches standby station, A stations
Handle ladle well and hang casting station；
（2）B processing stations feed silk operation：
A) ladle for filling molten steel is hung in into B station vacuum tanks, mobile handoff device is moved to B stations vacuum tank and vacuum
Pumping system connects；
B) vacuum cover car is by vacuum cover and B station vacuum tank closing seams；
C) main vacuum cutting-off valve is opened, closes A station pneumatics switch valve, B station pneumatic switch valves, opens vacuum pump system,
Vacuum refining processing is carried out to the molten steel of B stations；
D) main vacuum cutting-off valve is closed, air valve is opened, sky is carried out brokenly to B station vacuum chambers, closes down vacuum pump system, is closed
Air valve；
E) B station pneumatic switch valves are opened, B station vacuum chambers connect with dust arrester, open Pneumatic flap valve, drive B stations
Threads feeding apparatus is carried out feeding silk, and caused flue gas is drawn into dust arrester at progress dedusting by flue during feeding silk
Reason；
F) after the completion of B stations feed silk, B station pneumatic switch valves are closed, lift vacuum cover, vacuum cover car reaches standby station, B works
The ladle that position is handled well hangs casting station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710727870.2A CN107447077A (en) | 2017-08-23 | 2017-08-23 | Fume dust remover and its dust removal method during vacuum refining furnace hello silk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710727870.2A CN107447077A (en) | 2017-08-23 | 2017-08-23 | Fume dust remover and its dust removal method during vacuum refining furnace hello silk |
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| Publication Number | Publication Date |
|---|---|
| CN107447077A true CN107447077A (en) | 2017-12-08 |
Family
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| CN201710727870.2A Withdrawn CN107447077A (en) | 2017-08-23 | 2017-08-23 | Fume dust remover and its dust removal method during vacuum refining furnace hello silk |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109576446A (en) * | 2018-12-10 | 2019-04-05 | 北京首钢股份有限公司 | RH external refining system and dust removal method |
| CN110273048A (en) * | 2019-06-11 | 2019-09-24 | 首钢京唐钢铁联合有限责任公司 | A kind of VD furnace online processing position threads feeding apparatus and method |
| CN111575445A (en) * | 2020-05-14 | 2020-08-25 | 中国重型机械研究院股份公司 | Ladle wire feeding and dust removing device and method for vacuum refining furnace |
| CN112344749A (en) * | 2020-09-29 | 2021-02-09 | 宝钢工程技术集团有限公司 | Dust removal method of VD furnace under normal pressure |
| CN114807519A (en) * | 2022-06-14 | 2022-07-29 | 浙江杭真能源科技股份有限公司 | Vacuum refining furnace with dust removal function |
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| CN111575445A (en) * | 2020-05-14 | 2020-08-25 | 中国重型机械研究院股份公司 | Ladle wire feeding and dust removing device and method for vacuum refining furnace |
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| CN112344749A (en) * | 2020-09-29 | 2021-02-09 | 宝钢工程技术集团有限公司 | Dust removal method of VD furnace under normal pressure |
| CN114807519A (en) * | 2022-06-14 | 2022-07-29 | 浙江杭真能源科技股份有限公司 | Vacuum refining furnace with dust removal function |
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