CN209537547U - A kind of ladle refining furnace - Google Patents
A kind of ladle refining furnace Download PDFInfo
- Publication number
- CN209537547U CN209537547U CN201920225374.1U CN201920225374U CN209537547U CN 209537547 U CN209537547 U CN 209537547U CN 201920225374 U CN201920225374 U CN 201920225374U CN 209537547 U CN209537547 U CN 209537547U
- Authority
- CN
- China
- Prior art keywords
- furnace
- furnace body
- arc
- ladle
- ladle refining
- 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.)
- Expired - Fee Related
Links
- 238000007670 refining Methods 0.000 title claims abstract description 21
- 239000011449 brick Substances 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims 1
- 230000013011 mating Effects 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 32
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract description 27
- 229910000831 Steel Inorganic materials 0.000 abstract description 27
- 239000010959 steel Substances 0.000 abstract description 27
- 229910052786 argon Inorganic materials 0.000 abstract description 13
- 239000002245 particle Substances 0.000 abstract description 9
- 239000007790 solid phase Substances 0.000 abstract description 9
- 239000002893 slag Substances 0.000 abstract description 8
- 230000002045 lasting effect Effects 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000005188 flotation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000009847 ladle furnace Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model embodiment discloses a kind of ladle refining furnace, including furnace body, arc electrode ontology, furnace body includes inner furnace body and outer cover furnace, the bottom of inner furnace body is provided with arc furnace bottom, the junction of arc furnace bottom and inner furnace body is provided with connection coil, gas source collet chamber is provided on inner furnace body, flush type jet pipe is provided on gas source collet chamber inner sidewall, flush type nozzle tip inside arc furnace bottom is connected with annular gas permeable brick, bell matched with arc electrode ontology is provided at the top of outer cover furnace, ladle economizer bank is provided on bell, lasting Argon is carried out into inner furnace body by radial inflow flush type jet pipe, several flush type jet pipes of array can be in the Argon mode of interior furnace interior formation Cyclonic simultaneously, and approximate columnar stingy indulge in serfing the Net is formed in the molten steel of inner furnace body, increase being greater than for steel slag and solid phase particles and minute bubbles The contact angle of vertical angle, the effective adherency for carrying out steel slag and solid phase particles in molten steel.
Description
Technical field
The utility model embodiment is related to ladle refining techniques field, and in particular to a kind of ladle refining furnace.
Background technique
Ladle refining furnace is a kind of BOTTOM ARGON BLOWING ladle furnace of heating of three-dimensional submerged arc under normal pressure, and by molten steel in ladle into
The equipment of row refining, main function is by electric arc heated, Deoxidation Atmosphere in Furnace, to make height under non-oxidizing atmosphere
The means such as the refining of basicity reducing slag, Gas Stirring strengthen thermodynamics and kinetics dynamic condition, it is ensured that reach molten steel composition essence
Really, the purpose that temperature is uniform, field trash sufficiently floats purification molten steel, while coordinating steel and continuous casting working procedure well, guarantee more furnaces
What company poured goes on smoothly.
Under the conditions of general ladle argon-blown, the removal of solid phase sundries relies primarily on the flotation effect of minute bubbles in steel, i.e.,
Sundries and minute bubbles are expanded and are adhered in walls, and the furnace body interposition of furnace body is arranged in the air brick of existing Argon structure
It sets, argon gas bubbles straight up are under the action of high temperature, it is easy to quick evolution, contact of the molten steel with bubble；
It is nearly all to reach bubble surface simultaneously research shows that when the contact angle of solid particle and solution is greater than 90 degree
Particle can adhere to, and unrelated with the size of contact angle, when contact angle is less than 90 degree, adhesion rate subtracts with contact angle
Fall sharply less, therefore the Argon bubble of vertical angles is more demanding to the randomness in molten steel.
Utility model content
For this purpose, the utility model embodiment provides a kind of ladle refining furnace, to solve in the prior art due to air brick
Be arranged and the air blowing angle of Argon bubble caused by molten steel the problem of the adhesion rate decline of solid phase impurity.
To achieve the goals above, the utility model embodiment provides the following technical solutions:
A kind of ladle refining furnace, including furnace body and arc electrode ontology, the furnace body include inner furnace body and outer cover furnace, described
The bottom of inner furnace body is connected with arc furnace bottom, and the junction of the arc furnace bottom and inner furnace body is provided with connection coil, position
In being provided with gas source collet chamber on the inner furnace body of connection coil bottom, flush type spray is provided on the gas source collet chamber inner sidewall
Pipe, the flush type nozzle tip inside arc furnace bottom is connected with annular gas permeable brick, be provided at the top of the outer cover furnace with
Arc electrode ontology matched bell is provided with ladle economizer bank on the bell.
The utility model embodiment is further characterized in that, is provided in the connection coil and is matched with outer cover furnace bottom edge
The movable sealing slot of conjunction, and branched pipe is provided in the side wall of inner furnace body, and the top end of the branched pipe is located at seal groove
Top.
The utility model embodiment is further characterized in that the section of the annular gas permeable brick is trapezoidal, and is mounted on arc
The inner surface of furnace bottom, the inclined-plane radian and the radian of arc furnace bottom of the annular gas permeable brick are consistent, the annular gas permeable brick
Local array has several groups to bore stomata, and the cone stomata is connected with flush type jet pipe.
The utility model embodiment is further characterized in that the bottom of the furnace body is provided with mounting seat, and the interior furnace
Body is movably arranged in mounting seat, is provided with rack gear on the lateral wall of the connection coil, and the rack gear is connected with driving
Device.
The utility model embodiment is further characterized in that, is provided between the gas source collet chamber and the contact surface of inner furnace body
Collet.
The utility model embodiment has the advantages that
(1) furnace body of the utility model at work, is continued by radial inflow flush type jet pipe into inner furnace body
Argon, while several flush type jet pipes of array can form the Argon mode of Cyclonic in interior furnace interior, and in interior furnace
Formed in the molten steel of body it is approximate it is columnar it is stingy indulge in serfing the Net, so that increase steel slag and solid phase particles and minute bubbles is greater than vertical angle
Contact angle, thus effectively carry out molten steel in steel slag and solid phase particles adherency.
(2) for the utility model in such a way that inner furnace body and outer bonnet combine, the driving device of inner furnace body can be motor
Or stepper motor, and the rotation of inner furnace body is carried out by the rack gear on engagement inner furnace body in the process of work, so that
Formed it is columnar it is stingy indulge in serfing the Net, flotation is carried out in a manner of spiralling, further increases the contact rate of flotation；Simultaneously in rotation
Furnace body can be improved the randomness of molten steel itself in ladle.
Detailed description of the invention
It, below will be to reality in order to illustrate more clearly of the embodiments of the present invention or technical solution in the prior art
It applies mode or attached drawing needed to be used in the description of the prior art is briefly described.It should be evident that attached in being described below
Figure is only exemplary, for those of ordinary skill in the art, without creative efforts, can be with
It is extended according to the attached drawing of offer and obtains other implementation attached drawings.
Structure depicted in this specification, ratio, size etc., only to cooperate the revealed content of specification, for
Those skilled in the art understands and reads, and is not intended to limit the utility model enforceable qualifications, therefore does not have technology
On essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the utility model institute energy
Under the effect of generation and the purpose that can reach, it should all still fall in the revealed technology contents of the utility model and obtain the model that can cover
In enclosing.
Fig. 1 is a kind of ladle refining furnace structural schematic diagram provided by the embodiment of the utility model；
Fig. 2 is a kind of annular gas permeable brick schematic perspective view of ladle refining furnace provided by the embodiment of the utility model；
Fig. 3 is a kind of annular gas permeable brick cross section structure schematic diagram of ladle refining furnace provided by the embodiment of the utility model；
In figure:
1- inner furnace body；2- outer cover furnace；3- arc electrode ontology；4- arc furnace bottom；5- connection coil；6- gas source collet chamber；7-
Flush type jet pipe；8- annular gas permeable brick；9- bell；10- movable sealing slot；11- branched pipe；12- bores stomata；13- mounting seat；
14- rack gear；15- ladle economizer bank.
Specific embodiment
The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the utility model easily, it is clear that described embodiment is
The utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the utility model protection
Range.
As shown in Figure 1, a kind of ladle refining furnace, including furnace body and arc electrode ontology 3, furnace body includes inner furnace body 1 and outer
Cover furnace 2, the bottom of inner furnace body 1 are connected with arc furnace bottom 4, and arc furnace bottom 4 and the junction of inner furnace body 1 are provided with clamping ring
Frame 5, positioned at connection 5 bottom of coil inner furnace body 1 on be provided with gas source collet chamber 6, be provided on 6 inner sidewall of gas source collet chamber to
The heart extends into the flush type jet pipe 7 of 4 inner wall of arc furnace bottom, and 7 end of flush type jet pipe inside arc furnace bottom 4 is connected with ring
Shape air brick 8, the top of outer cover furnace 2 are provided with bell 9 matched with arc electrode ontology 3, are provided with ladle economizer bank on bell 9
15。
As shown in Figure 1, Figure 2 and Figure 3, the furnace body of the utility model at work, by radial inflow flush type jet pipe 7 to
Lasting Argon is carried out in inner furnace body 1, while several flush type jet pipes 7 of array can form Cyclonic inside inner furnace body 1
Argon mode, and formed in the molten steel of inner furnace body 1 it is approximate it is columnar it is stingy indulge in serfing the Net, thus increase steel slag and solid phase particles with
The contact angle greater than vertical angle of minute bubbles forms essence to effectively carry out the adherency of steel slag and solid phase particles in molten steel
Refine rigid water；
And by annular gas permeable brick 8 to the guiding role of argon gas so that by the minute bubbles of flotation adherency, to small
The centre of bubble net and outside diffusion, and top seal oxygen barrier layer under the action of formed circulation, increase molten steel in steel slag and
The touch opportunity of solid phase particles improves the efficiency of refining.
The bottom of the utility model furnace body is provided with mounting seat 13, and inner furnace body 1 is movably arranged in mounting seat 13,
It connects and is provided with rack gear 14 on the lateral wall of coil 5, and rack gear 14 is engaged with driving device.
The driving device can be motor or stepper motor, and in the process of work by engagement inner furnace body 1
Rack gear 14 carry out inner furnace body 1 rotation so that formed it is columnar it is stingy indulge in serfing the Net, flotation is carried out in a manner of spiralling,
Further increase the contact rate of flotation；Rotating inner furnace body 1 can be improved the randomness of molten steel itself in ladle simultaneously；
And in the course of rotation, due to the presence of liquid inertia, so that the spiral angle of annular gas permeable brick 8 is ventilative
Hole is formed about the state of near vacuum, so that the evolution of minute bubbles is more smooth, so that molten steel blocking air brick 8 be avoided to cause
Pressure in gas source collet chamber 6 increases.
Steel material in the utility model passes through eddy heating for heating first by having the ladle economizer bank 15 of vortex device
Mode preheats steel material, after the preheating temperature for reaching certain, then opens the valve that 15 bottom of ladle economizer bank is arranged in,
Voltage power when electric arc initial stage heating ladle is reduced, to improve the efficiency of refining.
It is set between inner furnace body 1 in the utility model and outer cover furnace 2, and inner furnace body 1 is identical with the height of outer hubcap 2,
It is provided with the movable sealing slot 10 matched with 2 bottom margin of outer cover furnace in connection coil 5, and is arranged in the side wall of inner furnace body 1
Have a branched pipe 11, and branched pipe 11 extends to the top of movable sealing slot 10, gas source collet chamber 6 by external argon gas device into
Row gas supply, when work, between part argon gas in gas source collet chamber 6 is blown between inner furnace body 1 and outer cover furnace 2 by branched pipe 11
Gap, to form the sealing isolation of environment in inner furnace body 1；
Branched pipe 11 and the air supply source of flush type jet pipe 7 can also be separated simultaneously, be blown into the protective gas such as helium,
To change the working environment atmosphere of 1 headspace of inner furnace body, realize that the ambiance in the course of work is controllable.
The section of annular gas permeable brick 8 is trapezoidal, and is inlaid in the inner surface of arc furnace bottom 4, the inclined-plane arc of annular gas permeable brick 8
It spends and is consistent with the radian of arc furnace bottom 4, the centripetal array of 8 internal helicoid of annular gas permeable brick has several groups to bore stomata 12, and bores
Stomata 12 is connected with flush type jet pipe 7.
Collet is provided between gas source collet chamber 6 and the contact surface of inner furnace body 1.
Although above having made detailed description to the utility model with generality explanation and specific embodiment,
On the basis of the utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements on the basis of without departing from the spirit of the present invention, belong to the utility model and want
Seek the range of protection.
Claims (5)
1. a kind of ladle refining furnace, including furnace body and arc electrode ontology (3), which is characterized in that the furnace body includes inner furnace body
(1) it is connected with arc furnace bottom (4) with outer cover furnace (2), the bottom of the inner furnace body (1), the arc furnace bottom (4) and interior furnace
The junction of body (1) is provided with connection coil (5), is located on the inner furnace body (1) of connection coil (5) bottom and is provided with gas source collet
Chamber (6) is provided with flush type jet pipe (7) on gas source collet chamber (6) inner sidewall, is located at arc furnace bottom (4) internal embedment
Formula jet pipe (7) end is connected with annular gas permeable brick (8), is provided at the top of the outer cover furnace (2) mating with arc electrode ontology (3)
Bell (9), be provided with ladle economizer bank (15) on the bell (9).
2. a kind of ladle refining furnace according to claim 1, which is characterized in that be provided on the connection coil (5) with
The movable sealing slot (10) that outer cover furnace (2) bottom margin matches, and branched pipe (11) are provided in the side wall of inner furnace body (1),
And the top end of the branched pipe (11) is located at the top of movable sealing slot (10).
3. a kind of ladle refining furnace according to claim 1, which is characterized in that the section of the annular gas permeable brick (8) is in
It is trapezoidal, and it is mounted on the inner surface of arc furnace bottom (4), the inclined-plane radian of the annular gas permeable brick (8) and the arc of arc furnace bottom (4)
Degree is consistent, and annular gas permeable brick (8) local array has several groups to bore stomata (12), and the cone stomata (12) and embedment
Formula jet pipe (7) is connected.
4. a kind of ladle refining furnace according to claim 1, which is characterized in that the bottom of the furnace body is provided with installation bottom
Seat (13), and the inner furnace body (1) is movably arranged on mounting seat (13), is arranged on the lateral wall of connection coil (5)
Have rack gear (14), and the rack gear (14) is connected with driving device.
5. a kind of ladle refining furnace according to claim 1, which is characterized in that the gas source collet chamber (6) and inner furnace body
(1) collet is provided between contact surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920225374.1U CN209537547U (en) | 2019-02-22 | 2019-02-22 | A kind of ladle refining furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920225374.1U CN209537547U (en) | 2019-02-22 | 2019-02-22 | A kind of ladle refining furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209537547U true CN209537547U (en) | 2019-10-25 |
Family
ID=68273794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920225374.1U Expired - Fee Related CN209537547U (en) | 2019-02-22 | 2019-02-22 | A kind of ladle refining furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209537547U (en) |
-
2019
- 2019-02-22 CN CN201920225374.1U patent/CN209537547U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191025 |