CN207276650U - Vacuum refining furnace feeds the fume dust remover during silk - Google Patents
Vacuum refining furnace feeds the fume dust remover during silk Download PDFInfo
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- CN207276650U CN207276650U CN201721057329.7U CN201721057329U CN207276650U CN 207276650 U CN207276650 U CN 207276650U CN 201721057329 U CN201721057329 U CN 201721057329U CN 207276650 U CN207276650 U CN 207276650U
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Abstract
The fume dust remover during silk is fed this application involves a kind of vacuum refining furnace, 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-extraction unit, dust-extraction unit is opened when vacuum refining furnace feeds silk, dedusting is carried out to the vacuum chamber to work.The application equipment is simple, operates easy, small investment, is safe and reliable to operation, and a clean working environment is provided for vacuum refining station.
Description
Technical field
The fume dust remover during silk is fed this application involves a kind of vacuum refining furnace, is primarily adapted for use in metallurgy environment guarantor
Shield.
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 it is Ca-Si a certain amount of,
Aluminium wire, rare-earth wires or certain B alloy wire, under the kinetics function of argon gas stirring, can be effectively accomplished the deoxidation to molten steel, take 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 and performance of steel.
With the rapid development of science and technology, steel performance and quality are increasingly taken seriously, STEELMAKING PRODUCTION rate and cost etc.
Requirement it is also higher and higher.In order to improve product quality, productivity 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, shortens and pours 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
To ladle feeding is Ca-Si a certain amount of, aluminium wire, rare-earth wires or certain B alloy wire, 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-extraction unit in vacuum refining station, feed silk process
The flue gas of generation is all emitted in workshop, which feeds silk method can not meet clear production requirement, main
Drawback is wanted to be embodied in the following aspects：
（1）The substantial amounts of exhaust gas and flue dust that can be produced during to ladle wire feeding, these exhaust gas and smokes are in environmental pollution
It account for greatly, containing a large amount of solid particles in exhaust gas in proportion, the PM2.5 mass in the workshop made in air is tight
Weight is exceeded, produces serious influence to the health of direct labor, and flue gas can be to air after being diffused into from workshop outside workshop
Environmental quality causes serious pollution.
（2）The substantial amounts of exhaust gas produced during to ladle wire feeding also containing pernicious gases such as SO2, NOx, CO, produces work
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.
Utility model content
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
Refining furnace feeds the fume dust remover during silk.
Technical solution includes used by the application solves above-mentioned technical problem：
Vacuum refining furnace feed silk during fume dust remover, including sealing vacuum chamber device, vacuum lead system,
Flue gas ash removal pipe-line system, sealing vacuum chamber device are connected by vacuum lead system with vacuum pump system road, seal vacuum
Chamber device is connected by vacuum lead system with flue gas ash removal pipe-line system, dust-extraction unit, when vacuum refining furnace feeds Si Shikai
Dust-extraction unit is opened, dedusting is carried out to the vacuum chamber to work.
Sealing vacuum chamber device described in the utility model includes vacuum tank, vacuum cover, Splashproof cover, vacuum cover car, pneumatic
Flap valve, vacuum tank coordinate with vacuum cover, and vacuum tank and vacuum lead system connectivity, vacuum tank are formed after being closed with vacuum cover
The vacuum chamber of one integral sealing, vacuum tank inside, which is built, refractory material, and vacuum interior surface, which is built to have refractory material and hang, to exist
On vacuum cover car, Splashproof cover is formed and hung inside vacuum cover using refractory material laying or water cooled steel pipe dish system, treats ladle
After being put into vacuum tank, vacuum tank is closed with vacuum cover, as an integral sealing container, is provided with vacuum cover and is fed wire hole, gas
Dynamic flap valve is installed on vacuum cover and coordinates with feeding wire hole, feeds wire hole for opening or closing, vacuum cover car is arranged on vacuum
On the track of tank both sides, for lifting vacuum cover and Mobile vacuum lid, ladle is facilitated to pass in and out.
Vacuum tank described in the utility model is made of A stations vacuum tank, B station vacuum tanks, and A stations vacuum tank, B stations are true
Slack tank coordinates with vacuum cover, and A stations vacuum tank is closed with vacuum cover forms A station vacuum chambers, B stations vacuum tank and vacuum cover
Close form B station vacuum chambers, A stations vacuum tank, B stations vacuum tank with vacuum lead system connectivity.
Vacuum lead system described in the utility model includes vacuum pipe, mobile handoff device, main vacuum stop valve
Door, air valve, main vacuum cutting-off valve on the vacuum pipe between sealing vacuum chamber device and vacuum pump system, cut by movement
Changing device is on the vacuum pipe between sealing vacuum chamber device and main vacuum cutting-off valve, for two vacuum tanks of switching
Vacuum refining is handled, and air valve is on the vacuum pipe between main vacuum cutting-off valve and mobile handoff device.When molten steel is true
After the completion of empty refining treatment, main vacuum cutting-off valve is closed, air valve is opened, makes the indoor pressure recovery of vacuum to atmospheric pressure.
Pneumatic flap valve described in the utility model includes turnover panel and driving cylinder, and turnover panel, driving cylinder are rotatablely installed
On vacuum cover, turnover panel is hinged with driving cylinder.When the completion of vacuum refining treatment, main vacuum cutting-off valve is closed, opens broken sky
Valve, makes the indoor pressure recovery of vacuum using compressed air-driven cylinder, open the turnover panel fed in wire hole to atmospheric pressure, start
Wire feeder, by the silk fed wire 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 described in the utility model includes A station pneumatics switch valve, flue, B station gas
Dynamic switch valve, A station pneumatics switch valve are used for opening or closing the connection between A stations vacuum chamber and dust pelletizing system, B station gas
Dynamic switch valve 18 is used for opening or closing the connection between B stations vacuum chamber and dust pelletizing system.When wire feeder is to before ladle wire feeding
The pneumatic on-off valve on flue before the vacuum tank for needing to feed silk is opened, until completing to feed silk, waits molten steel to stir several minutes, makes
After the silk of feeding is fully reacted with molten steel, vacuum cover is opened, vacuum cover is moved on to standby station by vacuum cover car, is closed on flue
Pneumatic on-off valve, then hang away ladle to casting or continuous casting station operation.Silk reacts what is produced with molten steel during feeding silk
Flue gas is sucked into dust-extraction unit by flue, is discharged into after dust-extraction unit is handled in air.
The application has the following advantages：Equipment is simple, operates easy, small investment, is safe and reliable to operation, is vacuum refining work
Position provides a clean working environment.
Brief description of the drawings
Fig. 1 is the structure diagram of the embodiment of the present application.
Embodiment
Referring to Fig. 1, a kind of vacuum refining furnace of the utility model embodiment feeds the fume dust remover during silk, including close
Seal vacuum chamber device, vacuum lead system, flue gas ash removal pipe-line system；Sealing vacuum chamber device passes through vacuum lead system
It is connected with vacuum pump system road, sealing vacuum chamber device is filled by vacuum lead system and flue gas ash removal pipe-line system, dedusting
Put connection.Dust-extraction unit 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 feeds above wire hole, including valve plate and driving 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-extraction unit of a 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 work 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 stations (Fig. 1 states), slowly put down mobile elbow, A stations vacuum tank 1 is passed through A stations vacuum pipe 8 and connection vacuum tube
Road 10 is 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, carries out vacuum refining processing, the vacuum refining that molten steel is completed by technological requirement is handled to the molten steel of A processing stations.
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-extraction unit, A station vacuum chambers are connected with dust-extraction unit, open gas
Dynamic flap valve 7, operation A stations threads feeding apparatus 5, passes through the molten steel in charging aperture addition ladle by technological requirement by the silk of needs
In, feed the flue gas that produces during silk be drawn into by flue 17 handled in dust-extraction unit after be discharged into air.
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
Pipeline 10 is connected with vacuum pump system.
B) vacuum cover car 6 reaches 14 station of B stations vacuum tank, slowly puts down vacuum cover 4, makes vacuum cover 4 and B station vacuum
14 closing seam of tank.
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, carries out vacuum refining processing, at the vacuum refining that molten steel is completed by technological requirement to the molten steel of B processing stations
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 are connected with dust-extraction unit, 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
The flue gas of middle generation is drawn into dust-extraction unit after processing by flue 17 and is 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 utility model is disclosed as above with embodiment, it is not limited to the protection model of the utility model
Enclose, any technical staff for being familiar with this technology, the change made in the spirit and scope for do not depart from the utility model and profit
Decorations, all should belong to the protection range of the utility model.
Claims (6)
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, are 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-extraction unit.
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 wire hole, Pneumatic flap valve installation
Coordinate on vacuum cover and with feeding wire 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 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 is closed with vacuum cover forms A station vacuum chambers, and B stations vacuum tank is closed 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：The 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 driving cylinder, and turnover panel, driving cylinder are rotatably installed on vacuum cover, turnover panel and driving cylinder hinge
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721057329.7U CN207276650U (en) | 2017-08-23 | 2017-08-23 | Vacuum refining furnace feeds the fume dust remover during silk |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721057329.7U CN207276650U (en) | 2017-08-23 | 2017-08-23 | Vacuum refining furnace feeds the fume dust remover during silk |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 | Online processing position wire feeding device and method for VD furnace |
| CN112375875A (en) * | 2020-10-26 | 2021-02-19 | 宝钢工程技术集团有限公司 | Vacuum refining device for molten steel |
-
2017
- 2017-08-23 CN CN201721057329.7U patent/CN207276650U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109576446B (en) * | 2018-12-10 | 2021-03-26 | 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 | Online processing position wire feeding device and method for VD furnace |
| CN112375875A (en) * | 2020-10-26 | 2021-02-19 | 宝钢工程技术集团有限公司 | Vacuum refining device for molten steel |
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