CN209681150U - A kind of flow in function with anti-wadding wraps the mouth of a river - Google Patents
A kind of flow in function with anti-wadding wraps the mouth of a river Download PDFInfo
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- CN209681150U CN209681150U CN201920128546.3U CN201920128546U CN209681150U CN 209681150 U CN209681150 U CN 209681150U CN 201920128546 U CN201920128546 U CN 201920128546U CN 209681150 U CN209681150 U CN 209681150U
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Abstract
The utility model relates to a kind of flow in function with anti-wadding to wrap the mouth of a river, belong to continuous casting functional technical field of refractory materials, including air-permeable layer, venting channels, bowl portion and ontology, bowl is equipped with air-permeable layer at portion, venting channels are offered between air-permeable layer and bowl portion, inner cavity is equipped in ontology, the bottom of ontology is equipped with quick sliding surface, the inner wall of ontology side offers side wall venthole, the side of venting channels is communicated with the outside through side wall venthole and by stone mill button, by being equipped with air-permeable layer, paraffin and venting channels, it effectively can therefrom wrap mouth of a river itself and solve bowl portion wadding stream up, it will not be wrapped in and generate wadding stream object at water gap bowl portion, the normal steel -passing amount and stopper rod flow control of molten steel are not influenced, the normal steel -passing amount in water gap bowl portion inner cavity and the stable flow control effect of stopper are wrapped in ensuring, guarantee that casting process is gone on smoothly.
Description
Technical field
The utility model relates to a kind of with the mouth of a river is wrapped in anti-wadding stream function, belong to continuous casting functional refractory technology
Field.
Background technique
In wrap mouth of a river upper end bowl portion and match with stopper caput, by adjusting the aperture between stopper caput, to reach
To the purpose of flow control；Lower part is connected with submersed nozzle, will pass through in the molten steel wrapped in the inner cavity of the mouth of a river be conveyed to immersion
Water conservancy diversion is played the role of at the mouth of a river.But in the easily wadding stream steel such as casting Aluminum steel, aluminum killed steel, mild steel, ultra-low-carbon steel and Ti-containing steel
Kind when it some times happens that the xca0.yAl203 of high temperature dot can be gathered in wrap the rim of a bowl position at the mouth of a river, not only make the rim of a bowl portion
The inner cavity aperture of position becomes smaller, and influences normal steel -passing amount, makes the rim of a bowl position because of the xcaO.yAl2O3 of viscous glutinous high temperature dot
The height that the rim of a bowl becomes is uneven, cannot cooperate well with stopper caput, the raising of stopper stroke occurs, and steel -passing amount can't expire
The case where foot normally pours steel demand, influences the continuity for entirely pouring steel rhythm.The measure master of mouth of a river wadding stream is wrapped in solving at present
If adding aluminum amount in the control converter of converter workshop section or using silicon manganese dioxidation, on the basis of meeting except oxygen demand, avoid aluminum amount surplus
It is remaining；It refines workshop section and increases refining time, improve liquid steel temperature, complete to be appropriately extended that ladle is quiet puts the time using soft blow argon, refining,
Ensure that the aluminum oxide in molten steel sufficiently floats；In refining workshop section increase calcium line appropriate, silicon-calcium wire line feeding amount, make AL203
React the 12CaO.7AL2O3 to form low melting point with CaO, improve the mobility of molten steel, but the CaO in molten steel also can with caput,
AL2O3 reaction in water gap bowl portion material, forms the 12CaO.7AL2O3 of low melting point, causes the not anti-molten steel punching in caput and water gap bowl portion
The case where brushing, causing not flow control；Baking of tundish temperature is improved in continuous casting workshop section, is blown into argon inside tundish opening to pour to go to
Gas excludes the air inside tundish sufficiently, and the aluminium in molten steel is avoided to contact with the oxygen in air, forms aluminum oxide；
It is cast pouring steel whole process using whole process protection, avoids molten steel from contacting with air, adopted between long nozzle and collector nozzle of ladle
Use argon gas-sealed；Mouth of a river inner cavity position or caput are wrapped in using Argon technology, avoid aluminum oxide attached inside the mouth of a river
；Guarantee that liquid steel temperature is stablized in steel pouring process simultaneously, if liquid steel temperature reduces, using heating plasma mode, improves steel
Coolant-temperature gage.
Wrap the development at the mouth of a river in existing anti-wadding stream function, also effectively slow down to a certain extent in wrap water
Mouth wadding stream, extends tundish service life, but increases steel mill's production cost and controlling of production process hardly possible to a certain extent
Degree, it is anti-in wrap water gap bowl portion wadding stream effect and have certain limit, do not wrap mouth of a river itself therefrom and solve bowl portion up
Wad a quilt with cotton flow problem, be unable to ensure in wrap the normal steel -passing amount in water gap bowl portion inner cavity and the stable flow control effect of stopper, not can guarantee
Casting process is gone on smoothly, and ontology loosens, and can also not can guarantee casting process and be gone on smoothly.
Utility model content
The technical problems to be solved in the utility model overcomes existing defect, provides a kind of middle packet with anti-wadding stream function
Filling pipe end, can effectively solve to wrap water gap bowl portion wadding stream effect in background technique has certain limit, can not therefrom wrap
Mouth of a river itself solves bowl portion wadding stream up, be unable to ensure in wrap the normal steel -passing amount in water gap bowl portion inner cavity and the stable control of stopper
Effect is flowed, casting process is not can guarantee and goes on smoothly, ontology loosens, and can also not can guarantee the problem of casting process is gone on smoothly.
In order to solve the above-mentioned technical problem, the utility model provides the following technical solution:
A kind of flow in function with anti-wadding wraps the mouth of a river, including air-permeable layer, venting channels, bowl portion and ontology, the bowl
It is equipped with the air-permeable layer at portion, the venting channels are offered between the air-permeable layer and the bowl portion, are set in the ontology
There is inner cavity, the bottom of the ontology is equipped with quick sliding surface, and the inner wall of the ontology side offers side wall venthole, the ventilation
The side in channel is communicated with the outside through the side wall venthole and by stone mill button, and the air-permeable layer is fixed at described
On the inner sidewall of ontology, and it is equipped with one layer of paraffin between the two, the side fixing sleeve of the body surface is equipped with fixing piece.
Furthermore, the air-permeable layer is located at the inside in the bowl portion.
Furthermore, the air-permeable layer thickness is between 5mm-30mm.
Furthermore, the air-permeable layer is that hydrostatic profile forms under 20Mpa-45MPa pressure, and the air-permeable layer by
One of magnesium aluminate spinel, corundum, fused magnesite are made, and the corundum therein is white fused alumina, Brown Alundum or plate diamond spar
It is one such.
Furthermore, the venting channels are uniformly provided between the air-permeable layer and the bowl portion, the ventilation
For the width in channel between 0.5mm-5mm, the area of the venting channels accounts for the 10%-60% of the air-permeable layer area.
Furthermore, the aperture of the side wall venthole is between 1mm-10mm.
Furthermore, the thickness of the paraffin is between 0.1mm-3mm.
Furthermore, the section of the fixing piece is T shape.
The utility model the utility model has the advantages that the utility model by be equipped with air-permeable layer, paraffin and venting channels, can effectively from
In wrap mouth of a river itself up solve bowl portion wadding stream, will not be wrapped at water gap bowl portion generate wadding stream object, do not influence molten steel
Normal steel -passing amount and stopper rod flow control, it is ensured that in wrap the normal steel -passing amount in water gap bowl portion inner cavity and the stable flow control effect of stopper,
Guarantee that casting process is gone on smoothly；Upper surface by being equipped with fixing piece, fixing piece is fixed on the bottom of tundish, can prevent this
Body loosens, and guarantees that casting process is gone on smoothly.
Detailed description of the invention
Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this
Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.
Fig. 1 is the utility model section view.
Fig. 2 is the utility model front view.
Fig. 3 is the utility model top view.
Fig. 4 is the utility model side view.
Figure label: 1, air-permeable layer；2, venting channels；3, bowl portion；4, ontology；5, inner cavity；6, quick sliding surface；7, stone mill
Button；8, side wall venthole；9, fixing piece.
Specific embodiment
It is illustrated below in conjunction with preferred embodiment of the attached drawing to the utility model, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
As shown, a kind of with wrapping the mouth of a river in anti-wadding stream function, including air-permeable layer 1, venting channels 2, bowl portion 3 with
Ontology 4 is equipped with air-permeable layer 1 at bowl portion 3, and venting channels 2 are offered between air-permeable layer 1 and bowl portion 3, are equipped with inner cavity in ontology 4
5, the bottom of ontology 4 is equipped with quick sliding surface 6, and the inner wall of 4 side of ontology offers side wall venthole 8, and the side of venting channels 2 is passed through
It wears side wall venthole 8 and is communicated with the outside by stone mill button 7, air-permeable layer 1 is fixed on the inner sidewall of ontology 4, and two
One layer of paraffin is equipped between person, the side fixing sleeve on 4 surface of ontology is equipped with fixing piece 9.
Air-permeable layer 1 is located at the inside in bowl portion 3,1 thickness of air-permeable layer from 5mm-30mm etc., air-permeable layer 1 be in 20Mpa-
Hydrostatic profile forms under 45MPa pressure, and air-permeable layer 1 is made of one of magnesium aluminate spinel, corundum, fused magnesite, wherein
Corundum be white fused alumina, Brown Alundum or plate diamond spar it is one such, venting channels 2 are equably provided with air-permeable layer 1 and bowl portion 3
Between, for the width of venting channels 2 between 0.5mm-5mm, the area of venting channels 2 accounts for the 10%-60% of 1 area of air-permeable layer,
The aperture of side wall venthole 8 is between 1mm-10mm, and for the thickness of paraffin between 0.1mm-3mm, the section of fixing piece 9 is T shape
The upper surface of shape, fixing piece 9 is fixed on the bottom of tundish, can prevent ontology 4 from loosening, and guarantees that casting process is gone on smoothly, thoroughly
Gas-bearing formation 1 hangs one layer of lower melting-point paraffin before the forming, and paraffin is wrapped in vapor away completely in mouth of a river drying or sintering process,
Venting channels 2 are formed, mouth of a river side wall venthole 8 are wrapped in, and one graphite button 7 is installed in the side of side wall venthole 8,
So that venting channels 2 are communicated with the outside, in this way in casting easily wadding stream steel grade, it will not wrap in and be generated at water gap bowl portion 3
Wadding stream object, will not influence the normal steel -passing amount and stopper rod flow control of molten steel, guarantee that casting process is gone on smoothly, the physical and chemical control of air-permeable layer 1
Index processed is as shown in table 1 below, and the bulk density of the green compact index of air-permeable layer 1 is in 2.45-2.9/g.cm3Between, the life of air-permeable layer 1
The porosity of base index is between 0-10%, and the bulk density of the ripe base index of air-permeable layer 1 is in 2.35-2.85/g.cm3Between,
The porosity of the ripe base index of air-permeable layer 1 is between 15-30%.
Table one: the physical and chemical Con trolling index of air-permeable layer 1
Utility model works principle: water gap bowl portion 3 is wrapped in and forms the air-permeable layer 1 that one layer of anti-molten steel washes away, is breathed freely
Layer 1 hangs one layer of lower melting-point paraffin before the forming, and paraffin is wrapped in vapor away completely in mouth of a river drying or sintering process, shape
At venting channels 2.One graphite button 7 is installed by the utility model side wall venthole 8, and in the side of side wall venthole 8, is made
It obtains venting channels 2 to be communicated with the outside, in this way in casting easily wadding stream steel grade, generation wadding at water gap bowl portion 3 will not be wrapped in
Object is flowed, will not influence the normal steel -passing amount and stopper rod flow control of molten steel, guarantees that casting process is gone on smoothly, the upper surface of fixing piece 9 is solid
It is scheduled on the bottom of tundish, can prevent ontology 4 from loosening, also can guarantee that casting process is gone on smoothly.
The above are the preferable embodiment of the utility model, the utility model those skilled in the art can also be to upper
It states embodiment to change and modify, therefore, the utility model is not limited to above-mentioned specific embodiment, all abilities
Field technique personnel made any conspicuous improvement, replacement or modification on the basis of the utility model belong to practical
Novel protection scope.
Claims (8)
1. a kind of flow in function with anti-wadding wraps the mouth of a river, including air-permeable layer (1), venting channels (2), bowl portion (3) and ontology
(4), it is characterised in that: be equipped with the air-permeable layer (1) at the bowl portion (3), the air-permeable layer (1) and the bowl portion (3) it
Between offer the venting channels (2), be equipped with inner cavity (5) in the ontology (4), the bottom of the ontology (4) is equipped with fast ski-running
The inner wall in face (6), ontology (4) side offers side wall venthole (8), and the side of the venting channels (2) is through described
It side wall venthole (8) and is communicated with the outside by stone mill button (7), the air-permeable layer (1) is fixed at the ontology (4)
On inner sidewall, and it is equipped with one layer of paraffin between the two, the side fixing sleeve on ontology (4) surface is equipped with fixing piece (9).
2. a kind of flow in function with anti-wadding according to claim 1 wraps the mouth of a river, it is characterised in that: the air-permeable layer
(1) it is located at the inside of the bowl portion (3).
3. a kind of flow in function with anti-wadding according to claim 1 wraps the mouth of a river, it is characterised in that: the air-permeable layer
(1) thickness is between 5mm-30mm.
4. a kind of flow in function with anti-wadding according to claim 1 wraps the mouth of a river, it is characterised in that: the air-permeable layer
It (1) is that hydrostatic profile forms under 20Mpa-45MPa pressure, and the air-permeable layer (1) is by magnesium aluminate spinel, corundum, electric-melting magnesium
One of sand is made, and the corundum therein is that white fused alumina, Brown Alundum or plate diamond spar are one such.
5. a kind of flow in function with anti-wadding according to claim 1 wraps the mouth of a river, it is characterised in that: the ventilation is logical
Road (2) is equably provided between the air-permeable layer (1) and the bowl portion (3), and the width of the venting channels (2) is in 0.5mm-
Between 5mm, the area of the venting channels (2) accounts for the 10%-60% of the air-permeable layer (1) area.
6. a kind of flow in function with anti-wadding according to claim 1 wraps the mouth of a river, it is characterised in that: the side wall is logical
The aperture of stomata (8) is between 1mm-10mm.
7. a kind of flow in function with anti-wadding according to claim 1 wraps the mouth of a river, it is characterised in that: the paraffin
Thickness is between 0.1mm-3mm.
8. a kind of flow in function with anti-wadding according to claim 1 wraps the mouth of a river, it is characterised in that: the fixing piece
(9) section is T shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920128546.3U CN209681150U (en) | 2019-01-24 | 2019-01-24 | A kind of flow in function with anti-wadding wraps the mouth of a river |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920128546.3U CN209681150U (en) | 2019-01-24 | 2019-01-24 | A kind of flow in function with anti-wadding wraps the mouth of a river |
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| CN209681150U true CN209681150U (en) | 2019-11-26 |
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| CN201920128546.3U Active CN209681150U (en) | 2019-01-24 | 2019-01-24 | A kind of flow in function with anti-wadding wraps the mouth of a river |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021197002A1 (en) * | 2020-03-30 | 2021-10-07 | 宝山钢铁股份有限公司 | Anti-nodulation tundish gas-permeable upper nozzle |
-
2019
- 2019-01-24 CN CN201920128546.3U patent/CN209681150U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021197002A1 (en) * | 2020-03-30 | 2021-10-07 | 宝山钢铁股份有限公司 | Anti-nodulation tundish gas-permeable upper nozzle |
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