CN106111961A - A kind of continuous casting tundish and dam thereof - Google Patents
A kind of continuous casting tundish and dam thereof Download PDFInfo
- Publication number
- CN106111961A CN106111961A CN201610768298.XA CN201610768298A CN106111961A CN 106111961 A CN106111961 A CN 106111961A CN 201610768298 A CN201610768298 A CN 201610768298A CN 106111961 A CN106111961 A CN 106111961A
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- China
- Prior art keywords
- dam
- continuous casting
- molten steel
- casting tundish
- dam body
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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
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
This application discloses the dam of a kind of continuous casting tundish, including dam body, the profile of dam body is identical with the lower shape of the longitudinal cross-section of continuous casting tundish, and dam body offers the steel flow through hole of through dam body two sides.Dam is vertically sealingly fastened in the bottom of continuous casting tundish, and the both sides narrow end setting of the lateral cross section near continuous casting tundish, and two orifices adjacent bottom continuous casting tundish are kept apart by dam.Molten steel is after injecting in continuous casting tundish, a part through steel flow through hole by enter continuous casting tundish both sides narrow end, a molten steel part overflows the both sides narrow end into continuous casting tundish above dam, two strands of molten steel collide blending, make fluidity molten steel strengthen, and molten steel is difficult to condense, it is not susceptible to discontinuity events of casting, non-metallic inclusion in molten steel floats fully, improves Cleanliness of Molten Steel, improves casting quality.Disclosed herein as well is a kind of continuous casting tundish comprising this dam.
Description
Technical field
The present invention relates to metallurgical technology field, particularly to the dam of a kind of continuous casting tundish, further relate to one and comprise
The continuous casting tundish of this dam.
Background technology
Molten steel, in carrying out continuous casting production process, is sent in tundish by conticaster, to improve MOLTEN STEEL FLOW form, prevents
Slag, promotes inclusion floating, finely tunes molten steel composition, controls inclusion morphology and accurately controls molten steel overheat.In tundish
Molten steel after the process of tundish from multiple orifices of tundish bottom flow out, carry out next step operation.
The lateral cross section of existing continuous casting tundish is the shape that centre is wide, both sides are narrow, and the longitudinal cross-section of tundish
Tapering into from top to bottom, the tundish of this structure is after injecting molten steel, and molten steel mobility in tundish is irregular, causes
Easily there is dead band in the areas at both sides of tundish, and the liquid steel temperature of dead zone location is relatively low, easily causes molten steel and condenses, it is impossible to from position
Flow out in the orifice of tundish two side bottom, casting discontinuity events occurs.And owing to fluidity molten steel is poor, cause non-gold
Belong to inclusion floating insufficient, cause Cleanliness of Molten Steel the highest, impact casting quality.
In sum, how to solve the problem that the fluidity molten steel in continuous casting tundish is poor, become art technology
Personnel's problem demanding prompt solution.
Summary of the invention
In view of this, it is an object of the invention to provide the dam of a kind of continuous casting tundish, to improve in the middle of conticaster
Fluidity molten steel in bag, reduces casting discontinuity events odds, improves Cleanliness of Molten Steel.
Further object is that a kind of continuous casting tundish comprising this dam of offer, to improve in conticaster
Between bag in fluidity molten steel, reduce casting discontinuity events odds, improve Cleanliness of Molten Steel.
For reaching above-mentioned purpose, the present invention provides techniques below scheme:
The dam of a kind of continuous casting tundish, including dam body, the profile of described dam body is vertical with described continuous casting tundish
It coincide to the lower shape in cross section, described dam body offers the steel flow through hole of through dam body two sides.
Preferably, in above-mentioned dam, described dam body is inverted trapezoidal structure.
Preferably, in above-mentioned dam, the height of described dam body is 200mm～300mm, and the thickness of described dam body is
100mm～150mm.
Preferably, in above-mentioned dam, the quantity at least two of described steel flow through hole, and horizontal arrangement is in described
On dam body.
Preferably, in above-mentioned dam, the aperture of described steel flow through hole is 90mm～110mm.
Preferably, in above-mentioned dam, described dam body is by castable and the mixing casting of lightweight corundum castable
Become.
Preferably, in above-mentioned dam, described castable is (8.0 with the ratio of described lightweight corundum castable
～9.0): (1.0～1.5).
Present invention also offers a kind of continuous casting tundish, including middle inclusion, the bottom of described middle inclusion is provided with
Multiple orifices, a sidewall of described middle inclusion are provided with molten steel flow straightener, also include as described in any of the above item
Dam, described dam is vertically fixed on the bottom of described middle inclusion, and the base of described dam and dual-side are respectively with described
Bottom surface and the side wall surface of middle inclusion seal, and described dam is arranged near the both sides narrow end of the lateral cross section of described middle inclusion,
And between adjacent two described orifices.
Preferably, in above-mentioned continuous casting tundish, it is steady that described dam and described middle inclusion are provided with described molten steel
One sidewall of stream device is vertical.
Preferably, in above-mentioned continuous casting tundish, described dam is sealingly fastened in described by magnesium carbon coating material
In tundish body.
Compared with prior art, the invention has the beneficial effects as follows:
The dam of the continuous casting tundish that the present invention provides includes dam body, the profile of dam body and the longitudinal direction of continuous casting tundish
The lower shape in cross section coincide, and dam body offers the steel flow through hole of through dam body two sides.During work, dam is the closeest
Sealing is arranged near the both sides narrow end of the lateral cross section of continuous casting tundish due to the bottom of continuous casting tundish, dam, and will
Two orifices adjacent bottom continuous casting tundish are kept apart.Molten steel is after injecting in continuous casting tundish, and molten steel is a part of
Entering the both sides narrow end of continuous casting tundish through steel flow through hole by dam, a molten steel part covers dam, from dam
Side enters the both sides narrow end of continuous casting tundish, and two strands of molten steel collide blending, so that fluidity molten steel enhancing, molten steel is not
Easily condense, reduce the accident risk that casting is interrupted, simultaneously as the mobility of molten steel strengthens, the nonmetal inclusion in molten steel
Thing floats fully, improves Cleanliness of Molten Steel, improves casting quality.
The continuous casting tundish that the present invention provides have employed the dam in the application, therefore, enhances the mobility of molten steel,
Non-metallic inclusion in molten steel floats fully, improves Cleanliness of Molten Steel, improves casting quality.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to
The accompanying drawing provided obtains other accompanying drawing.
The structural representation of the dam of a kind of continuous casting tundish that Fig. 1 provides for the embodiment of the present invention；
The schematic top plan view of a kind of continuous casting tundish that Fig. 2 provides for the embodiment of the present invention；
The side, sectional view of a kind of continuous casting tundish that Fig. 3 provides for the embodiment of the present invention.
In Fig. 1-Fig. 3,1 it is dam, 11 is dam body, 12 is steel flow through hole, 2 is middle inclusion, 3 is orifice, 4 is
Molten steel flow straightener.
Detailed description of the invention
The core of the present invention there is provided the dam of a kind of continuous casting tundish, enhances the molten steel in continuous casting tundish
Mobility, reduces casting discontinuity events odds, improves Cleanliness of Molten Steel.
The present invention also provides for a kind of continuous casting tundish comprising this dam, enhances the steel flow in continuous casting tundish
Dynamic property, reduces casting discontinuity events odds, improves Cleanliness of Molten Steel.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
Refer to Fig. 1-Fig. 3, embodiments provide the dam of a kind of continuous casting tundish, hereinafter referred to as dam 1,
Including dam body 11, the profile of dam body 11 is identical with the lower shape of the longitudinal cross-section of continuous casting tundish, is used for being sealingly fastened in
The bottom of continuous casting tundish, dam body 11 offers the steel flow through hole 12 of through dam body 11 two sides.
The operation principle of this dam 1 is, during work, dam 1 is vertically sealingly fastened in the bottom of continuous casting tundish, gear
Dam 1 is arranged near the both sides narrow end of the lateral cross section of continuous casting tundish, and by two notes adjacent bottom continuous casting tundish
Discharge orifice 3 is kept apart.Molten steel is after injecting in continuous casting tundish, and molten steel part steel flow through hole 12 in dam 1 enters
Entering the both sides narrow end of continuous casting tundish, a molten steel part covers dam 1, enters the two of continuous casting tundish above dam 1
Side narrow end, two strands of molten steel collide blending, so that fluidity molten steel strengthens, molten steel is difficult to condense, and reducing casting and interrupting
Accident risk, simultaneously as the mobility of molten steel strengthens, non-metallic inclusion in molten steel floats fully, improves molten steel
Cleanliness factor, improves casting quality.
Specifically, as it is shown in figure 1, in the present embodiment, dam body 11 is inverted trapezoidal structure, and certainly, dam body 11 can also be
Other shape, depending on the lower shape of the longitudinal cross-section of continuous casting tundish, as long as can seal in the middle of stop conticaster
The base section height of bag.
Preferably, in the present embodiment, the height of dam body 11 is 200mm～300mm, the thickness of dam body 11 be 100mm～
150mm, it is highly preferred that the height of dam body 11 is 250mm, the thickness of dam body 11 is 120mm.
In the present embodiment, the quantity at least two of steel flow through hole 12, and horizontal arrangement is on dam body 11, specifically may be used
Think two, three, four etc., be configured according to the size of dam body 11.
As optimization, the aperture of steel flow through hole 12 is 90mm～110mm, more preferably 100mm, for this size, then
The quantity of steel flow through hole 12 is two.Ensure that steel flow is clear and coherent smooth.
In the present embodiment, dam body 11 is formed by castable and lightweight corundum castable mixing casting, lightweight corundum
Castable can improve high temperature resistant, the decay resistance of dam body 11, improves structural strength and the thermal shock resistance of dam body 11.
Preferably, castable is (8.0～9.0) with the ratio of lightweight corundum castable: (1.0～1.5), more preferably
For 8.7:1.3, the dam body 11 being cast into is made to have the most high temperature resistant, corrosion resistance, higher structural strength and thermal shock resistance.
As shown in Figures 2 and 3, the embodiment of the present invention additionally provides a kind of continuous casting tundish, including middle inclusion 2 and gear
Dam 1, the bottom of middle inclusion 2 is provided with multiple orifice 3, a sidewall of middle inclusion 2 is provided with molten steel flow straightener 4,
The flow regime of molten steel flow straightener 4 molten steel for being adjusted into, to reduce directly washing away middle inclusion 2, dam 1 be with
Upper dam 1 described by whole embodiments, dam 1 is vertically fixed on the bottom of middle inclusion 2, and the base of dam 1 and both sides
Limit bottom surface and side wall surface with middle inclusion 2 respectively seals, and dam 1 sets near the both sides narrow end of the lateral cross section of middle inclusion 2
Put, and between adjacent two orifices 3.
During casting, dam 1 is vertically sealingly fastened in the bottom of middle inclusion 2, and dam 1 is near the transverse cutting of middle inclusion 2
The both sides narrow end in face is arranged, and is kept apart by two adjacent orifices 3 bottom middle inclusion 2.Molten steel is in injecting middle inclusion 2
After, molten steel part steel flow through hole 12 in dam 1 enters the both sides narrow end of middle inclusion 2, and a molten steel part covers
Dam 1, enter above dam 1 in the middle of the both sides narrow end of inclusion 2, two strands of molten steel collide blending, so that MOLTEN STEEL FLOW
Property strengthen, molten steel be difficult to condense, reduce casting interrupt accident risk, simultaneously as molten steel mobility strengthen, in molten steel
Non-metallic inclusion float fully, improve Cleanliness of Molten Steel, improve casting quality.
Further, in the present embodiment, the sidewall that dam 1 and middle inclusion 2 are provided with molten steel flow straightener 4 hangs down
Directly, the molten steel owing to entering from molten steel flow straightener 4 is relatively big to the impulsive force of this sidewall, therefore, in order to improve dam 1 and this sidewall
Fixing intensity, dam 1 is perpendicular to this sidewall.
In order to improve fixing intensity and the sealing property of dam 1 further, the dam 1 in the present embodiment is coated with by magnesium carbonaceous
Skinning loam is sealingly fastened in middle inclusion 2.
In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is and other
The difference of embodiment, between each embodiment, identical similar portion sees mutually.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple amendment to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and features of novelty phase one
The widest scope caused.
Claims (10)
1. the dam of a continuous casting tundish, it is characterised in that including dam body (11), the profile of described dam body (11) is with described
The lower shape of the longitudinal cross-section of continuous casting tundish coincide, and described dam body (11) offers through described dam body (11) both sides
The steel flow through hole (12) in face.
Dam the most according to claim 1, it is characterised in that described dam body (11) is inverted trapezoidal structure.
Dam the most according to claim 1, it is characterised in that the height of described dam body (11) is 200mm～300mm, institute
The thickness stating dam body (11) is 100mm～150mm.
Dam the most according to claim 1, it is characterised in that the quantity at least two of described steel flow through hole (12),
And horizontal arrangement is on described dam body (11).
Dam the most according to claim 1, it is characterised in that the aperture of described steel flow through hole (12) be 90mm～
110mm。
Dam the most according to claim 1, it is characterised in that described dam body (11) is watered by castable and lightweight corundum
Material feeding mixing casting forms.
Dam the most according to claim 6, it is characterised in that described castable and described lightweight corundum castable
Ratio is (8.0～9.0): (1.0～1.5).
8. a continuous casting tundish, including middle inclusion (2), the bottom of described middle inclusion (2) is provided with multiple orifice
(3), a sidewall of described middle inclusion (2) is provided with molten steel flow straightener (4), it is characterised in that also include that right such as is wanted
Seeking the dam (1) described in any one of 1-7, described dam (1) is vertically fixed on the bottom of described middle inclusion (2), and described gear
The base on dam (1) and dual-side seal with the bottom surface of described middle inclusion (2) and side wall surface respectively, and described dam (1) is near institute
The both sides narrow end of the lateral cross section stating middle inclusion (2) is arranged, and is positioned between adjacent two described orifices (3).
Continuous casting tundish the most according to claim 8, it is characterised in that described dam (1) and described middle inclusion (2)
The sidewall being provided with described molten steel flow straightener (4) is vertical.
Continuous casting tundish the most according to claim 8, it is characterised in that described dam (1) passes through magnesium carbon coating material
It is sealingly fastened in described middle inclusion (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610768298.XA CN106111961A (en) | 2016-08-30 | 2016-08-30 | A kind of continuous casting tundish and dam thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610768298.XA CN106111961A (en) | 2016-08-30 | 2016-08-30 | A kind of continuous casting tundish and dam thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106111961A true CN106111961A (en) | 2016-11-16 |
Family
ID=57275686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610768298.XA Pending CN106111961A (en) | 2016-08-30 | 2016-08-30 | A kind of continuous casting tundish and dam thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106111961A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100813194B1 (en) * | 2006-10-18 | 2008-03-13 | 주식회사 포스코 | Continuous casting machine for tundish |
| CN101474664A (en) * | 2009-01-19 | 2009-07-08 | 莱芜钢铁股份有限公司 | Flow control device for tundish in special-shaped billet continuous casting machine |
| KR20100035821A (en) * | 2008-09-29 | 2010-04-07 | 현대제철 주식회사 | Tundish |
| CN203343422U (en) * | 2013-07-01 | 2013-12-18 | 莱芜钢铁集团有限公司 | Continuous casting tundish slag stop dam |
| CN103990786A (en) * | 2014-05-16 | 2014-08-20 | 莱芜钢铁集团有限公司 | Device and method for removing molten steel slag inclusion in tundish of double-flow slab caster |
| CN104959585A (en) * | 2015-06-09 | 2015-10-07 | 南京钢铁股份有限公司 | Tundish of small square billet continuous caster and mounting method of slag dam of tundish |
| CN205949845U (en) * | 2016-08-30 | 2017-02-15 | 山东钢铁股份有限公司 | Package in middle of conticaster and keep off dam thereof |
-
2016
- 2016-08-30 CN CN201610768298.XA patent/CN106111961A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100813194B1 (en) * | 2006-10-18 | 2008-03-13 | 주식회사 포스코 | Continuous casting machine for tundish |
| KR20100035821A (en) * | 2008-09-29 | 2010-04-07 | 현대제철 주식회사 | Tundish |
| CN101474664A (en) * | 2009-01-19 | 2009-07-08 | 莱芜钢铁股份有限公司 | Flow control device for tundish in special-shaped billet continuous casting machine |
| CN203343422U (en) * | 2013-07-01 | 2013-12-18 | 莱芜钢铁集团有限公司 | Continuous casting tundish slag stop dam |
| CN103990786A (en) * | 2014-05-16 | 2014-08-20 | 莱芜钢铁集团有限公司 | Device and method for removing molten steel slag inclusion in tundish of double-flow slab caster |
| CN104959585A (en) * | 2015-06-09 | 2015-10-07 | 南京钢铁股份有限公司 | Tundish of small square billet continuous caster and mounting method of slag dam of tundish |
| CN205949845U (en) * | 2016-08-30 | 2017-02-15 | 山东钢铁股份有限公司 | Package in middle of conticaster and keep off dam thereof |
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| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161116 |
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| RJ01 | Rejection of invention patent application after publication |