CN208701117U - A kind of vacuum outgas decarburization refining furnace - Google Patents
A kind of vacuum outgas decarburization refining furnace Download PDFInfo
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- CN208701117U CN208701117U CN201820998581.6U CN201820998581U CN208701117U CN 208701117 U CN208701117 U CN 208701117U CN 201820998581 U CN201820998581 U CN 201820998581U CN 208701117 U CN208701117 U CN 208701117U
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- vacuum chamber
- ladle
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- molten steel
- refining furnace
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Abstract
This application discloses a kind of vacuum outgas decarburization refining furnace, which includes ladle, and the bottom of ladle is provided with gas access, for being passed through gas into ladle；Vacuum outgas decarburization refining furnace further include: heating device and vacuum chamber, heating device is for being heated or being kept the temperature to the molten steel being blended into ladle after electric furnace smelting；Vacuum chamber, vacuum chamber include dip pipe, and one end of dip pipe is impregnated in the molten steel in ladle, for carrying out vacuumize process to molten steel in refining process.By the above-mentioned means, the application can be improved the decarburization, dehydrogenation, deoxidation effect of liquid steel refining, while the utilization rate of resource is improved, improves the degree of purity of steel.
Description
Technical field
This application involves steel refining technical fields, more particularly to a kind of vacuum outgas decarburization refining furnace.
Background technique
Steel are nation-building and essential valuable cargo of realizing the four modernizations.Steel material has resourceful, production
Scale is big, easy to process, performance is various reliable, cheap, easy to use and the features such as convenient for recycling, is industrial production and people
Widely used material during the people's livelihood is living.
Have much to the method for steel material refining, wherein vacuum-oxygen decarbonizing (vacuum-oxygen
Decarburization, VOD) method is in a vacuum chamber to utilize vacuum plant to reduce carbon monoxide point in molten steel to molten steel oxygen blast
Pressure carries out decarburization.Vacuum oxygen decarburization process is excellent more than high, type etc. with excellent carbon drop guarantor's chromium effect and purified steel kind quality
Put and become the refining means of Special Steel Works indispensability.However, present inventor has found in long-term R&D process, it is traditional
It is still carbon containing 0.01% or more in steel after vacuum metallurgy technology is smelted, and the application is able to achieve the vacuum fine close to the threshold of reaction
Refining, can produce 0.0005% limit phosphorus content below in steel.After evacuated circular treatment, hydrogen, oxygen content in steel can
To drop to 2 × 10 respectively-6Below.
Utility model content
The application can be improved liquid steel refining mainly solving the technical problems that provide a kind of vacuum outgas decarburization refining furnace
Decarburization, dehydrogenation, deoxidation effect, improve the degree of purity of steel, and improve the utilization rate of resource.
In order to solve the above technical problems, the technical solution that the application uses is: providing a kind of vacuum outgas decarburization essence
Furnace, the vacuum outgas decarburization refining furnace includes ladle, and the bottom of the ladle is provided with gas access, the gas access
For being passed through gas, the vacuum outgas decarburization refining furnace into the ladle further include: heating device, the heating device are used
The molten steel being blended into the ladle after to electric furnace smelting is heated or is kept the temperature；Vacuum chamber, the vacuum chamber include dipping
Pipe, one end of the dip pipe is impregnated in the molten steel in the ladle, for taking out in refining process to the molten steel
It is vacuum-treated.
Further, the vacuum chamber includes vacuum chamber, the vacuum chamber and the dip pipe far from the molten steel one
End connection；Peep hole is provided on the vacuum chamber.
Wherein, the gas access is air brick, and the air brick is located off the position of the first central axis, described the
One central axis is the central axis of the dip pipe when dip pipe is inserted into the ladle.
Further, the heating device is electromagnetic induction heater.
Further, the vacuum chamber further include: vacuum chamber mobile mechanism, the vacuum chamber mobile mechanism are used to support institute
Vacuum chamber is stated, and keeps the vacuum chamber removable.
Wherein, the refining capacity of the vacuum outgas decarburization refining furnace is 50 tons or less.
The beneficial effect of the application is: being in contrast to the prior art, the application vacuum outgas decarburization refining furnace includes
Ladle, the bottom of ladle are provided with gas access, and gas access is for being passed through gas, vacuum outgas decarburization refining furnace into ladle
Further include: heating device, heating device is for heating the molten steel being blended into ladle after electric furnace smelting；Vacuum chamber, vacuum
Room includes dip pipe, and one end of dip pipe is impregnated in the molten steel in ladle, true for take out to molten steel in refining process
Vacancy reason.By the above-mentioned means, the application vacuum outgas decarburization refining furnace can by heating device to the molten steel in ladle into
Row refining, meanwhile, gas is passed through into molten steel to be stirred to molten steel by the gas access of ladle, improves smelting efficiency,
And take the SO in molten steel out of in whipping process2、CO、CO2Deng and deviate from by vacuum chamber, to promote decarburization, degasifying effect, very
For the dip pipe direct impregnation of empty room in the molten steel in ladle, the effect for making full use of molten steel to recycle increases molten steel response area,
To improve the degree of purity of resource utilization and steel.
Detailed description of the invention
In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.Wherein:
Fig. 1 is the structural schematic diagram of one embodiment of the application vacuum outgas decarburization refining furnace.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, rather than whole embodiments.Based on this
Embodiment in application, those of ordinary skill in the art are obtained every other under the premise of not making creative labor
Embodiment shall fall in the protection scope of this application.
Refering to fig. 1, Fig. 1 is the structural schematic diagram of one embodiment of the application vacuum outgas decarburization refining furnace.The vacuum is de-
Gas decarbonization refining furnace includes: ladle 11.Ladle 11 specifically can be top opening, high temperature resistant and the container with heat insulation effect,
It is mainly used for accepting the molten steel refined.In an application scenarios, ladle 11 is that liner is alumina silica refractory
Approximate cylinder shape holding molten steel container.
Wherein, 11 bottom of ladle is provided with gas access 111, and gas access 111 is for being passed through gas into ladle 11.
In an application scenarios, argon gas etc. is passed through into molten steel by the gas access 111.By from 11 bottom of ladle
Lead to argon gas etc. into molten steel, stirring action can be played to molten steel, and then uniformly liquid steel temperature, uniform molten steel composition, increasing quilt
Molten steel area is taken out, and improves decarburization degassing, while promoting the field trash in molten steel to collide and floating.
In present embodiment, vacuum outgas decarburization refining furnace further comprises heating device 12 and vacuum chamber 13.
Wherein, heating device 12 is for being heated or being kept the temperature to the molten steel being blended into ladle 11 after electric furnace smelting.Tool
Body, which can be the electromagnetic induction heater being arranged in outside ladle 11, for example, the electromagnetic induction heating
Device can be induction coil.
Vacuum chamber 13 is used to carry out vacuumize process in refining process with by gas removal generated in refining process,
To achieve the effect that the decarburization that deaerates, refining qualities are improved.Wherein, vacuum chamber 13 includes a dip pipe 131, the dip pipe 131
One end be impregnated in the molten steel in ladle 11, with to molten steel carry out vacuumize process, wherein dip pipe 131 can be located at ladle
11 center position.
Specifically, in refining process, carbon, sulphur and oxygen in molten steel react to generate CO, CO2、SO2Deng, into
One step, the gas access 111 by being located at 11 bottom of ladle is passed through gas, such as argon gas, oxygen, by molten steel, finally from
Molten steel surface emersion can carry CO, CO that generation is reacted in refining process2、SO2Deng, and further vacuumize through vacuum chamber 13 and
It discharges out of the furnace, and then reduces CO, CO2Deng partial pressure, to promote the further decarburization of molten steel.
By the above-mentioned means, vacuum outgas decarburization refining furnace can heat the molten steel in ladle by heating device
And heat preservation, meanwhile, gas is passed through into molten steel to be stirred to molten steel by the gas access 111 of ladle 11, improves melting
Efficiency, and take in whipping process the SO in molten steel out of2、CO、CO2、H2、O2Deng and deviate from by vacuum chamber, thus promoted decarburization,
Degasifying effect.And Efficient Cycle may be implemented in whipping process, increases molten steel response area, and improve the utilization rate of resource.In addition
It should be noted that vacuum chamber 13 is independently arranged in present embodiment, rather than vacuum chamber 13 and ladle 11 are designed as one
Body, 131 direct impregnation of dip pipe is in the molten steel in ladle 11, to carry out vacuumize process to molten steel.
It is further noted that the refining capacity of the vacuum outgas decarburization refining furnace in the application is not more than 50 tons.
It is of course also possible to according to actual needs and the size of practical ladle 11 adjusts refining capacity, be not specifically limited herein.
Wherein, in one embodiment, vacuum chamber 13 further includes vacuum chamber 132, and the vacuum chamber 132 and dip pipe 131 are remote
One end connection from molten steel.
Vacuum chamber 132 is a cavity of vacuum chamber 13, may be provided at the top position of vacuum chamber 13, the gas when vacuumizing
Body, which is passed through, enters vacuum chamber 132 by dip pipe 131, and is discharged except vacuum chamber 13 by vacuum chamber 132.
In an application scenarios, the internal diameter of vacuum chamber 132 is greater than the internal diameter of dip pipe 131.
Further, it is provided with peep hole 133 on vacuum chamber 132, for facilitating technical staff to pass through in refining process
Peep hole 133 observes the refined states of molten steel in ladle 11, to must promptly and accurately make execution refining operation.Specifically, it sees
Examine hole 133 be arranged in technical staff be able to observe that molten steel state vacuum chamber 132 outer wall on any position.It is answered at one
With in scene, the side on the outer wall of vacuum chamber 132 is arranged in peep hole 133.
Wherein, in one embodiment, gas access 111 is air brick, and air brick is located off the first central axis
Position, wherein the first central axis is the central axis that dip pipe 131 is inserted into dip pipe 131 when in ladle 11.In addition, ventilative
The shape of brick specifically can be at least one of circle, rectangle, sector, crescent etc..
In present embodiment, due to the effect of vacuum chamber 13, cause between atmosphere and vacuum chamber 13 there are pressure difference, molten steel can on
It is raised to certain altitude in dip pipe 131, and then opens argon gas and is blown into molten steel from 111 bias of gas access of 11 bottom of ladle,
In this way according to airlift pump principle, one side molten steel for being blown into argon gas is lighter, will float to inside vacuum chamber 13, the one of non-blowing argon gas
Side molten steel is heavier, will sink to 11 bottom of ladle, so in cycles, forms molten steel circulation, reaches decarburization, degassing, removal
The purpose of being mingled with, until refining terminates.
Wherein, in one embodiment, vacuum chamber 13 further include: vacuum chamber mobile mechanism 134, vacuum chamber mobile mechanism
134 are used to support vacuum chamber 13, and keep vacuum chamber 13 removable.
Vacuum chamber mobile mechanism 134 specifically can be lifting appliance etc. in present embodiment, control the lifting of vacuum chamber 13
And transfer.It, can be by the vacuum chamber mobile mechanism 134 by dip pipe such as after liquid steel refining in a ladle 11
Vacuum chamber 13 in 131 insertion ladles 11 in molten steel is sling and is transferred in other ladles 11 for having molten steel to need to refine, in turn
Molten steel in the ladle 11 is refined, to facilitate making full use of for vacuum chamber 13.
The foregoing is merely presently filed embodiments, are not intended to limit the scope of the patents of the application, all to utilize this
Equivalent structure or equivalent flow shift made by application specification and accompanying drawing content, it is relevant to be applied directly or indirectly in other
Technical field similarly includes in the scope of patent protection of the application.
Claims (6)
1. a kind of vacuum outgas decarburization refining furnace, the vacuum outgas decarburization refining furnace includes ladle, which is characterized in that the steel
The bottom of packet is provided with gas access, and the gas access is for being passed through gas, the vacuum outgas decarburization into the ladle
Refining furnace further include:
Heating device, the heating device is for being heated or being protected to the molten steel being blended into the ladle after electric furnace smelting
Temperature；
Vacuum chamber, the vacuum chamber include dip pipe, and one end of the dip pipe is impregnated in the molten steel in the ladle, are used for
Vacuumize process is carried out to the molten steel in refining process.
2. vacuum outgas decarburization refining furnace according to claim 1, which is characterized in that the vacuum chamber further includes vacuum
Chamber, the vacuum chamber are connected to the dip pipe far from one end of the molten steel；
Peep hole is provided on the vacuum chamber.
3. vacuum outgas decarburization refining furnace according to claim 1, which is characterized in that
The gas access is air brick, and the air brick is located off the position of the first central axis, first central axis
Line is the central axis of the dip pipe when dip pipe is inserted into the ladle.
4. vacuum outgas decarburization refining furnace according to claim 1, which is characterized in that
The heating device is electromagnetic induction heater.
5. vacuum outgas decarburization refining furnace according to claim 1, which is characterized in that the vacuum chamber further include: vacuum
Room mobile mechanism, the vacuum chamber mobile mechanism are used to support the vacuum chamber, and keep the vacuum chamber removable.
6. vacuum outgas decarburization refining furnace according to claim 1, which is characterized in that
The refining capacity of the vacuum outgas decarburization refining furnace is not more than 50 tons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820998581.6U CN208701117U (en) | 2018-06-26 | 2018-06-26 | A kind of vacuum outgas decarburization refining furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820998581.6U CN208701117U (en) | 2018-06-26 | 2018-06-26 | A kind of vacuum outgas decarburization refining furnace |
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| CN208701117U true CN208701117U (en) | 2019-04-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108676967A (en) * | 2018-06-26 | 2018-10-19 | 仇凯 | A kind of method of refining of vacuum outgas decarburization refining furnace and steel |
| CN110982991A (en) * | 2019-12-25 | 2020-04-10 | 芜湖新兴铸管有限责任公司 | Equipment for controlling defects of slag channel and air hole on surface of round billet |
-
2018
- 2018-06-26 CN CN201820998581.6U patent/CN208701117U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108676967A (en) * | 2018-06-26 | 2018-10-19 | 仇凯 | A kind of method of refining of vacuum outgas decarburization refining furnace and steel |
| CN110982991A (en) * | 2019-12-25 | 2020-04-10 | 芜湖新兴铸管有限责任公司 | Equipment for controlling defects of slag channel and air hole on surface of round billet |
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