CN108015243A - A kind of twin-roll thin strip continuous casting air blowing flow distribution device - Google Patents
A kind of twin-roll thin strip continuous casting air blowing flow distribution device Download PDFInfo
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- CN108015243A CN108015243A CN201610930886.9A CN201610930886A CN108015243A CN 108015243 A CN108015243 A CN 108015243A CN 201610930886 A CN201610930886 A CN 201610930886A CN 108015243 A CN108015243 A CN 108015243A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/103—Distributing the molten metal, e.g. using runners, floats, distributors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0622—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/116—Refining the metal
- B22D11/117—Refining the metal by treating with gases
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Abstract
A kind of twin-roll thin strip continuous casting air blowing flow distribution device, including one be in groove body type current distribution device body, which offers air admission hole at its both ends, and the passage that air admission hole opens up forms vertical air inlet passage and bottom inflow passage；Venthole group is opened up on bottom inflow passage；The inside of current distribution device body is molten steel accommodating chamber, molten steel accommodating chamber offers molten steel partition plate, upper and lower molten steel accommodating chamber is formed, molten steel downcast hole group is offered on molten steel partition plate, and molten steel discharge hole group is offered on the wall positioned at the lower molten steel accommodating chamber of molten steel the lower partition.The present invention can effectively buffer the imperfect flow that the mouth of a river goes out stream, it is effective to reduce discharge hole tap and molten steel flow velocity, realize high-temperature molten steel from lower part be the heat supply of triangle molten bath, inert gas is coordinated to drive the molten steel of molten steel discharge hole outflow to form Float upward function and promote the floating of molten steel of melting bath field trash, increase weld pool surface active degree, cold steel membrane is reduced, improves the stability and strip quality of thin strap continuous casting casting.
Description
Technical field
The present invention relates to Ferrous Metallurgy technology, more particularly to a kind of air blowing type molten steel cloth stream applied to twin-roll thin strip continuous casting
Device.
Background technology
Twin-roll thin strip continuous casting refers to directly lead liquid metal as crystallizer with the opposite casting rolls in two direction of rotation
Enter, be produced into the production technology that thickness is less than 10mm Thin Strip Steels.The twin-roll thin strip continuous casting technique and conventional thin band production technology phase
Than, have and shorten technological process, save the energy, reduce production cost and improve the advantages such as made-up belt mechanical property, therefore the technology
It is considered as one of 21 century most promising near net shape casting.
And the strip casting process under the prior art is one and had both been related distinguishing strip casting process with traditional continuous casting：
Its main technique is after molten steel is injected into tundish, and molten steel is assigned in current distribution device by the mouth of a river, then is noted by current distribution device
Enter in the bath surrounded to two water cooling crystallization rolls with side seal board, on the surface of two crystallization rolls, gradually solidification forms base to molten steel
Shell, after being solidified completely near two crystallization roll lines, occurs rolling effect, being formed has one by two rotating backward for rollers
Determine the compact metal band of thickness and width.
Therefore, rational cloth streaming system has very important significance for twin-roll thin strip continuous casting.This is because cloth
Streaming system directly influences the quality of strip product, and according to statistics, when bath liquid fluctuating amplitude exceedes ± 2mm, made-up belt will go out
Existing longitudinal crack, if but bath meniscus fluid region it is excessively tranquil, and be unfavorable for the renewal of bath top molten steel, be easy to cause liquid
Face is crusted, therefore how to keep balance therebetween is to pour the precondition for outpouring qualified strip.
And mainly have three pack arrangements, two pack arrangements and single packet form in patent disclosed in the current distribution device under the prior art, point
State as follows:
One tri- pack arrangements of-U.S. Patent No. 6073680, the cloth stream disclosed in 5857514,6125917, No. 6012508 etc.
Device, the current distribution device are mainly three pack arrangements, i.e. three tundish, transition bag, current distribution device container compositions, between three melted steel containers
Connected by the size mouth of a river, wherein current distribution device is square structure, and molten steel is flowed into inside current distribution device by transition water-coating port, current distribution device
Bottom is provided with discharge hole, on the form in discharge hole, mainly there is two kinds of forms at present, i.e. discharge hole is downward, and impact direction is roller
Direction is stitched, or discharge hole is obtained at an angle with crystallization roll towards roll surface.
Found after field conduct use, such current distribution device form has following deficiency：
1) structure is more and complicated, adds the extra transit link of equipment；
2) increase of middle transition bag will increase its installation difficulty, need to be equipped with other mechanism in landing；
3) since molten steel is directly dropped into the current distribution device of lower section by narrow slit, caused by excessive drop inside current distribution device
Fluctuation it is also larger, do not put down rapid effect.
The characteristics of two two pack arrangements of-the type current distribution device, mainly tundish formed with two melted steel containers of current distribution device, and two
It is connected between person using the mouth of a river, the patent of various countries' application is relatively more, and Japan Patent JP1317658 discloses a kind of current distribution device,
Tile one block of porous refractory plate for the bottom of current distribution device, after molten steel is flowed out by the mouth of a river of tundish, arrives first at porous resistance to
In fiery plate of material, porous material plate has preferable flat rapid effect, and then molten steel flows into current distribution device bottom by aperture, by small
Hole is flowed out in molten steel bath.
Found after field conduct use, such current distribution device form has following deficiency：
1) although porous refractory plate has flat rapid effect well, in big flow, the pouring condition of high pulling rate
Under, current distribution device easily occurs excessive since the steel -passing amount of refractory plate is limited；
2) porous refractory plate conveys molten steel by micropore, runs into the molecule field trash in molten steel, will be formed
Block, gradually influence the throughput of molten steel；
3) can porous refractory plate suitably be still needed verification by molten steel.
And two pack arrangements also have similar patent-CN02283420.6 and CN200820058904.X at home, disclose respectively
A kind of current distribution device form, the current distribution device top are a hatch frame, and lower part both sides are provided with several discharge holes, the bottom of current distribution device
For oblique angle or arc, the major advantage of the current distribution device is to improve the temperature of molten steel near side seal board, and reduction finishes the general of cold steel
Rate.
But the current distribution device still has shortcoming：Supply to add the liquid surface wave at this while molten steel near for side seal board
Dynamic, easily the Solidification Quality of strip, which is formed, influences.
Slag trap is provided with molten bath in addition, also having, for controlling the position of scum silica frost and being blown into using inert gas molten
The method of pool surface control scum silica frost flow direction, to solve variety of problems existing for two pack arrangements, but result is not fully up to expectations.
The characteristics of mono- pack arrangements of three ,-the type current distribution device is that melted steel container only has tundish, is flowed to by mouth of a river cloth double
In molten bath between roller.Early in October, 1996, Di Sen steel company and in the special of its Nore Sa Xi Knoll Inc. cooperation application
Profit is on the basis of original tradition mouth of a river, it is proposed that new cloth stream scheme, the arrangement of the program by the opening of mouth of a river bottom from
One is changed to two, and inclined angle.
And the advantage and disadvantage of the design are also apparent from：Form is simple, cost bottom but fluctuation and solidification uniformity are difficult to control.
In conclusion various current distribution device or cloth streaming systems under the prior art there are it is more or less the defects of, it is necessary to weight
A kind of new flow distribution device is newly designed to solve the above problems.
The content of the invention
In order to solve the variety of problems present in current distribution device or cloth streaming system under the prior art, the present invention proposes a kind of double
Roll thin-belt continuous casting air blowing flow distribution device, the air blowing flow distribution device enable to molten steel to flow out to two knots from current distribution device discharge hole
It is subject to the effect of gas buoyancy during the molten bath that brilliant roller is formed and changes and stream direction, while slows down the stream perpendicular to discharge hole
Speed, washes away crystallization roll roll surface so as to reduce, and forms the second best in quality Cast Strip.And the air blowing flow distribution device is mainly by cloth
Flow device inner cavity and insufflation channel is set, channel outlet is arranged in the middle part of current distribution device discharge hole, and insufflation channel entrance is arranged in current distribution device
Four, top corner location, in use, being passed through suitable inert gas in feeder connection so that gas leads to by current distribution device inner cavity
Flowed out behind road from discharge hole gas vent, due to the Float upward function of bubble, on the one hand drive the molten steel of discharge hole outflow to be formed
Float upward function, on the other hand, additionally it is possible to promote the floating of molten steel inclusion in molten bath, can additionally increase weld pool surface
Active degree, reduces the formation of cold steel membrane, so as to improve the stability and strip quality of thin strap continuous casting casting.
Its concrete structure is as described below with air blowing flow distribution device for a kind of twin-roll thin strip continuous casting of the present invention：
A kind of twin-roll thin strip continuous casting air blowing flow distribution device, including one be in groove body type current distribution device body, it is characterised in that：
The current distribution device body offers air admission hole at its both ends, and for being passed through inert gas, the air admission hole is from cloth
Flow device body both ends end face on vertically open up, pass straight through to current distribution device body bottom formed vertical air inlet passage, then respectively to
The center of current distribution device bottom opens up, until being mutually communicated, forms the bottom inflow passage laterally set；
The venthole group that laterally order is set at equal intervals is offered on the bottom inflow passage of the current distribution device body, from
The inert gas that air admission hole is passed through enters back into bottom inflow passage by vertical air inlet passage, finally by these venthole groups
Each venthole sheds, and molten steel is subject to the floating for the inert gas that venthole sheds to make during current distribution device body is flowed out
With；
Described its inner space of current distribution device body is molten steel accommodating chamber, is opened in the molten steel accommodating chamber close to the position of bottom
Equipped with a molten steel partition plate, upper and lower molten steel accommodating chamber is formed, the molten steel that laterally order is set at equal intervals is offered on the molten steel partition plate
Downcast hole group, and offer what is laterally sequentially set at equal intervals on the wall positioned at the lower molten steel accommodating chamber of molten steel the lower partition
Molten steel discharge hole group, molten steel is due to the effect of gravity, in molten steel accommodating chamber flow down, the steel set by molten steel partition plate by it
Each molten steel downcast hole shunting of liquid downcast hole group, subsequently into lower molten steel accommodating chamber, finally by each of molten steel discharge hole group
Flow out current distribution device body in a molten steel discharge hole.
A kind of twin-roll thin strip continuous casting air blowing flow distribution device of the present invention, its key Design are characterized by：
The addition of the molten steel partition plate of current distribution device body interior, can effectively buffer the imperfect flow that the mouth of a river goes out stream, steel
Each molten steel downcast hole shunting of the liquid Jing Guo molten steel downcast hole group, it is effective to reduce discharge hole tap and molten steel flow velocity so that
Middle part steel liquid stream leads to the influence from the circulation of edge molten steel in current distribution device body, and molten steel is by molten steel discharge hole group outflow cloth stream
Device body, realize high-temperature molten steel from lower part be the heat supply of triangle molten bath, then the inert gas for coordinating venthole group to shed, on the one hand
The molten steel of molten steel discharge hole outflow is driven to form Float upward function, on the other hand, additionally it is possible to promote molten steel inclusion in molten bath
Float, can additionally increase the active degree of weld pool surface, reduce the formation of cold steel membrane, connect so as to further improve strip
Cast the stability and strip quality of casting.
A kind of twin-roll thin strip continuous casting air blowing flow distribution device according to the present invention, it is characterised in that the venthole group
The quantity of venthole be 10~25, shape is ellipse, venthole apart from the bottom of whole current distribution device body for 20~
30mm。
A kind of twin-roll thin strip continuous casting air blowing flow distribution device according to the present invention, it is characterised in that the molten steel falls
The quantity of the molten steel downcast hole of hole group is 10~15, a diameter of 20~30mm, and shape is circle.
A kind of twin-roll thin strip continuous casting air blowing flow distribution device according to the present invention, it is characterised in that the molten steel spues
The quantity in the molten steel discharge hole of hole group is 2~7, and shape is waist-shaped hole, which is with a distance from molten steel partition plate
45~60mm, and molten steel discharge pitch-row is 50~60mm from the bottom of whole current distribution device body.
Using a kind of twin-roll thin strip continuous casting of the present invention following beneficial effect is obtained with air blowing flow distribution device：
1. a kind of twin-roll thin strip continuous casting air blowing flow distribution device of the present invention, the molten steel partition plate of its current distribution device body interior
Addition, can effectively buffer the imperfect flow that the mouth of a river goes out stream, and each molten steel of the molten steel Jing Guo molten steel downcast hole group falls
Hole shunts, effective to reduce discharge hole tap and molten steel flow velocity so that middle part steel liquid stream is led to from edge in current distribution device body
The influence of molten steel circulation；
2. a kind of twin-roll thin strip continuous casting air blowing flow distribution device of the present invention, molten steel is by molten steel discharge hole outflow current distribution device
Body, it is the heat supply of triangle molten bath to realize high-temperature molten steel from lower part, on the one hand the then inert gas for coordinating venthole to shed drives
The molten steel of molten steel discharge hole outflow forms Float upward function, on the other hand, additionally it is possible to promote the floating of molten steel inclusion in molten bath,
The active degree of weld pool surface can additionally be increased, reduce the formation of cold steel membrane, poured so as to further improve thin strap continuous casting
The stability and strip quality of casting.
Brief description of the drawings
Fig. 1 is a kind of concrete structure schematic diagram of twin-roll thin strip continuous casting air blowing flow distribution device of the present invention；
Fig. 2 is a kind of concrete structure stereogram of twin-roll thin strip continuous casting air blowing flow distribution device of the present invention；
Fig. 3 is a kind of sectional structure chart of twin-roll thin strip continuous casting air blowing flow distribution device of the present invention.
In figure：1- current distribution device bodies, 2- air admission holes, 3- vertical air inlet passages, 4- bottom inflow passages, 5- venthole groups,
6- molten steel accommodating chambers, 7- molten steel partition plates, 8- molten steel downcast hole groups, 9- molten steel discharges hole group.
Embodiment
A kind of twin-roll thin strip continuous casting of the present invention is made further of air blowing flow distribution device with reference to the accompanying drawings and examples
Description.
As shown in FIG. 1 to 3, a kind of twin-roll thin strip continuous casting air blowing flow distribution device, including one be in groove body type current distribution device
Body 1, which offers air admission hole 2 at its both ends, and for being passed through inert gas, the air admission hole is from current distribution device sheet
Vertically being opened up on the both ends end face of body, vertical air inlet passage 3 is formed on the bottom for passing straight through to current distribution device body, then respectively to current distribution device
The center of bottom opens up, until being mutually communicated, forms the bottom inflow passage 4 laterally set；
Offered on the bottom inflow passage 4 of current distribution device body 1 laterally at equal intervals order set venthole group 5, from into
The inert gas that stomata is passed through enters back into bottom inflow passage by vertical air inlet passage 3, finally by these venthole groups
Each venthole sheds, and molten steel is subject to the floating for the inert gas that venthole sheds to make during current distribution device body is flowed out
With；
Its inner space of current distribution device body 1 is molten steel accommodating chamber 6, is offered in the molten steel accommodating chamber close to the position of bottom
One molten steel partition plate 7, forms upper and lower molten steel accommodating chamber, is offered on the molten steel partition plate under the molten steel that laterally order is set at equal intervals
Fall hole group 8, and offer what is laterally sequentially set at equal intervals on the wall positioned at the lower molten steel accommodating chamber of molten steel the lower partition
Molten steel discharge hole group 9, molten steel, in molten steel accommodating chamber flow down, are set due to the effect of gravity by molten steel partition plate by it
Each molten steel downcast hole shunting of molten steel downcast hole group, subsequently into lower molten steel accommodating chamber, finally by molten steel discharge hole group
Flow out current distribution device body in each molten steel discharge hole.
The addition of the molten steel partition plate 7 of current distribution device body interior, can effectively buffer the imperfect flow that the mouth of a river goes out stream, steel
Each molten steel downcast hole shunting of the liquid Jing Guo molten steel downcast hole group 8, it is effective to reduce discharge hole tap and molten steel flow velocity so that
Middle part steel liquid stream leads to the influence from the circulation of edge molten steel in current distribution device body, and molten steel flows out cloth by molten steel discharge hole group 9
Flow device body, realize high-temperature molten steel from lower part be the heat supply of triangle molten bath, then the inert gas for coordinating venthole group 5 to shed, one
Aspect drives the molten steel of molten steel discharge hole outflow to form Float upward function, on the other hand, additionally it is possible to promote in molten steel to be mingled with molten bath
The floating of thing, can additionally increase the active degree of weld pool surface, reduce the formation of cold steel membrane, so as to further improve thin
Stability and strip quality with continuous casting casting.
The quantity of the venthole of venthole group 5 is 10~25, and shape is ellipse, and venthole is apart from whole current distribution device sheet
The bottom of body 1 is 20~30mm.
The quantity of the molten steel downcast hole of molten steel downcast hole group 8 is 10~15, a diameter of 20~30mm, and shape is circle.
The quantity in the molten steel discharge hole of molten steel discharge hole group 9 be 2~7, shape is waist-shaped hole, the molten steel discharge pitch-row from
The distance of molten steel partition plate 7 is 45~60mm, and molten steel discharge pitch-row is 50~60mm from the bottom of whole current distribution device body 1.
The main technique being related to when using shunting current distribution device is as follows：
1st, during 30~40m/min of pulling rate, distance h=30~60mm of current distribution device distance crystallization roller gap, wherein 35mm are
Most preferably；
2nd, during 50~70m/min of pulling rate, distance h=60~75mm of current distribution device distance crystallization roller gap, wherein 68mm are
Most preferably；
3rd, during 70~90m/min of pulling rate, distance h=75~80mm of current distribution device distance crystallization roller gap, wherein 78mm are
Most preferably；
4th, during 90~110m/min of pulling rate, distance h=80~92mm of current distribution device distance crystallization roller gap, wherein 90mm are
Most preferably；
5th, during 110~125m/min of pulling rate, distance h=92~105mm of current distribution device distance crystallization roller gap, wherein
100mm is optimal；
6th, during 125~150m/min of pulling rate, distance h=105~115mm of current distribution device distance crystallization roller gap, wherein
110mm is optimal.
The present invention a kind of twin-roll thin strip continuous casting air blowing flow distribution device a variety of patterns are had according to field condition, enumerate as
Under：
Embodiment 1.
Thin strap continuous casting pulling rate 35m/min, the distance of current distribution device distance crystallization roller gap is 35mm.
A kind of twin-roll thin strip continuous casting of the present invention is as follows with the main structure parameters of air blowing flow distribution device：
Molten steel partition plate 7 is 50mm apart from the distance of molten steel discharge hole group 9, and molten steel partition plate is offered under 10 circular molten steel
Fall hole, a diameter of 30mmm；
The discharge hole number of molten steel discharge hole group 9 is 3, is 50mm apart from the bottom of current distribution device body 1；
The quantity of the venthole of venthole group 5 is 20, is 30mm apart from the bottom of current distribution device body.
Embodiment 2.
Thin strap continuous casting pulling rate 60m/min, the distance of current distribution device distance crystallization roller gap is 68mm.
A kind of twin-roll thin strip continuous casting of the present invention is as follows with the main structure parameters of air blowing flow distribution device：
Molten steel partition plate 7 is 60mm apart from the distance of molten steel discharge hole group 9, and molten steel partition plate is offered under 12 circular molten steel
Fall hole, a diameter of 25mmm；
The discharge hole number of molten steel discharge hole group 9 is 2, is 50mm apart from the bottom of current distribution device body 1；
The quantity of the venthole of venthole group 5 is 15, is 25mm apart from the bottom of current distribution device body.
Embodiment 3.
Thin strap continuous casting pulling rate 90m/min, the distance of current distribution device distance crystallization roller gap is 77mm.
A kind of twin-roll thin strip continuous casting of the present invention is as follows with the main structure parameters of air blowing flow distribution device：
Molten steel partition plate 7 is 45mm apart from the distance of molten steel discharge hole group 9, and molten steel partition plate is offered under 15 circular molten steel
Fall hole, a diameter of 20mmm；
The discharge hole number of molten steel discharge hole group 9 is 4, is 55mm apart from the bottom of current distribution device body 1；
The quantity of the venthole of venthole group 5 is 13, is 20mm apart from the bottom of current distribution device body.
A kind of twin-roll thin strip continuous casting air blowing flow distribution device of the present invention, the molten steel partition plate of its current distribution device body interior add
Add, can effectively buffer the imperfect flow that the mouth of a river goes out stream, and each molten steel downcast hole of the molten steel Jing Guo molten steel downcast hole group
Shunting, it is effective to reduce discharge hole tap and molten steel flow velocity so that middle part steel liquid stream is led to from edge steel in current distribution device body
The influence that liquid stream is led to；And the molten steel of the present invention realizes high-temperature molten steel from lower part by molten steel discharge hole outflow current distribution device body
For the heat supply of triangle molten bath, then the inert gas for coordinating venthole to shed, the molten steel of molten steel discharge hole outflow is on the one hand driven to be formed
Float upward function, on the other hand, additionally it is possible to promote the floating of molten steel inclusion in molten bath, can additionally increase weld pool surface
Active degree, reduces the formation of cold steel membrane, so as to further improve the stability and strip quality of thin strap continuous casting casting.
A kind of twin-roll thin strip continuous casting air blowing flow distribution device of the present invention, produces suitable for various twin-roll thin strip continuous castings and leads
Domain.
Claims (4)
1. a kind of twin-roll thin strip continuous casting air blowing flow distribution device, including one be in groove body type current distribution device body (1), its feature exists
In：
The current distribution device body (1) offers air admission hole (2) at its both ends, for being passed through inert gas, the air admission hole from
Vertically opened up on the both ends end face of current distribution device body, vertical air inlet passage (3) is formed on the bottom for passing straight through to current distribution device body, then divides
Do not opened up to the center of current distribution device bottom, until being mutually communicated, form the bottom inflow passage (4) laterally set；
The venthole group that laterally order is set at equal intervals is offered on the bottom inflow passage (4) of the current distribution device body (1)
(5), the inert gas being passed through from air admission hole enters back into bottom inflow passage by vertical air inlet passage (3), finally by these
Each venthole of venthole group sheds, and molten steel is during current distribution device body is flowed out, the indifferent gas that is subject to venthole to shed
The Float upward function of body；
Described current distribution device body (1) its inner space is molten steel accommodating chamber (6), in the molten steel accommodating chamber close to the position of bottom
A molten steel partition plate (7) is offered, forms upper and lower molten steel accommodating chamber, order setting at equal intervals is offered laterally on the molten steel partition plate
Molten steel downcast hole group (8), and offered on the wall positioned at the lower molten steel accommodating chamber of molten steel the lower partition laterally at equal intervals
The molten steel discharge hole group (9) that order is set, molten steel is due to the effect of gravity, in molten steel accommodating chamber flow down, by molten steel every
The each molten steel downcast hole shunting for the molten steel downcast hole group that plate is set by it, subsequently into lower molten steel accommodating chamber, finally by steel
Each molten steel discharge hole outflow current distribution device body of liquid discharge hole group.
A kind of 2. twin-roll thin strip continuous casting air blowing flow distribution device as claimed in claim 1, it is characterised in that the venthole
The quantity of the venthole of group (5) is 10~25, and shape is ellipse, and venthole is apart from the bottom of whole current distribution device body (1)
For 20~30mm.
3. a kind of twin-roll thin strip continuous casting air blowing flow distribution device as claimed in claim 1, it is characterised in that under the molten steel
The quantity for falling the molten steel downcast hole of hole group (8) is 10~15, a diameter of 20~30mm, and shape is circle.
4. a kind of twin-roll thin strip continuous casting air blowing flow distribution device as claimed in claim 1, it is characterised in that the molten steel is spat
The quantity in the molten steel discharge hole of group of portalling (9) is 2~7, and shape is waist-shaped hole, and the molten steel discharge pitch-row is from molten steel partition plate (7)
Distance be 45~60mm, and molten steel discharge pitch-row is 50~60mm from the bottom of whole current distribution device body (1).
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| CN201610930886.9A CN108015243B (en) | 2016-10-31 | 2016-10-31 | Blowing flow distribution device for twin-roll thin strip continuous casting |
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|---|---|---|---|
| CN201610930886.9A CN108015243B (en) | 2016-10-31 | 2016-10-31 | Blowing flow distribution device for twin-roll thin strip continuous casting |
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| CN108015243B CN108015243B (en) | 2019-12-31 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111347031A (en) * | 2020-04-02 | 2020-06-30 | 江苏沙钢集团有限公司 | Dam weir type transition ladle for thin strip continuous casting |
| CN112157231A (en) * | 2020-09-16 | 2021-01-01 | 东北大学 | Thin strip continuous casting water distribution outlet device |
| CN114054696A (en) * | 2022-01-14 | 2022-02-18 | 东北大学 | Double-roller thin strip casting-rolling continuous casting flow distributor and double-roller thin strip casting-rolling continuous casting equipment |
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| CN202106002U (en) * | 2011-05-30 | 2012-01-11 | 宝山钢铁股份有限公司 | Flow distributing device for continuously casting thin strip |
| CN202146983U (en) * | 2011-05-30 | 2012-02-22 | 宝山钢铁股份有限公司 | Continuous casting bypass type flow distributing device for thin tape |
| CN102806324A (en) * | 2011-05-30 | 2012-12-05 | 宝山钢铁股份有限公司 | Double clapboard flow distribution device for thin-strip continuous casting |
| CN202174226U (en) * | 2011-06-30 | 2012-03-28 | 宝山钢铁股份有限公司 | Strip continuous casting divided-flow distribution device |
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| CN111347031A (en) * | 2020-04-02 | 2020-06-30 | 江苏沙钢集团有限公司 | Dam weir type transition ladle for thin strip continuous casting |
| CN112157231A (en) * | 2020-09-16 | 2021-01-01 | 东北大学 | Thin strip continuous casting water distribution outlet device |
| CN112157231B (en) * | 2020-09-16 | 2021-10-19 | 东北大学 | Thin strip continuous casting water distribution outlet device |
| CN114054696A (en) * | 2022-01-14 | 2022-02-18 | 东北大学 | Double-roller thin strip casting-rolling continuous casting flow distributor and double-roller thin strip casting-rolling continuous casting equipment |
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