CN201455216U - Composite dreg retaining wall with holes for tundish - Google Patents
Composite dreg retaining wall with holes for tundish Download PDFInfo
- Publication number
- CN201455216U CN201455216U CN2009200283325U CN200920028332U CN201455216U CN 201455216 U CN201455216 U CN 201455216U CN 2009200283325 U CN2009200283325 U CN 2009200283325U CN 200920028332 U CN200920028332 U CN 200920028332U CN 201455216 U CN201455216 U CN 201455216U
- Authority
- CN
- China
- Prior art keywords
- blocking wall
- slag blocking
- outlet hole
- steel outlet
- tundish
- 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
Images
Landscapes
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The utility model relates to a composite dreg retaining wall with holes for a tundish, which consists of a retaining wall body and a mosaic, wherein the mosaic is arranged on the retaining wall body and is provided with steel tapping holes; the retaining wall body is made of an aluminium-magnesium material, silicon-alluminiium material, high-aluminium material, magnesium material or magnesium-aluminium material; and the mosaic is made of a corundum material. The composite dreg retaining wall with the holes adopts a composite mosaic method; on the basis of slightly increasing material cost, the service life of part with the holes is further improved, and is made to synchronous with that of the dreg retaining wall; meanwhile, the change of a flow field of molten steel of the tundish caused by deformation of the steel tapping holes is avoided; and in the production process, functions of unifying temperature of the molten steel and removing inclusion of flow control devices such as the dreg retaining wall of the tundish can be effectively realized, and the requirement of a steel mill on improving continuous casting heats is met.
Description
Technical field
The utility model relates to steel industry tundish flow control device, especially a kind of combined type tundish slag blocking wall with holes.
Background technology
At present, flow control devices such as flow straightener, slag blocking wall, dam are all installed additional in domestic many steel mills in tundish, purpose is in order to improve flow field of molten steel, reduce the dead band, prolong the time of staying of molten steel in tundish, to reach liquid steel temperature in the even tundish, to promote inclusion floating, improve the purpose of steel quality.But refractory material integral manufacturings such as that the slag blocking wall with holes that most steel mills adopt is is magnesia, magnalium matter, in use owing to be subjected to the pressure and the souring of molten steel, damage is very fast around the steel outlet hole, very big change takes place in hole shape, so that can not continue effectively to be realized by the purpose that flow field of molten steel is improved in the hole.Especially water the steel mill that the stove number is had relatively high expectations to connecting, be difficult to guarantee the technological requirement of steel quality, limited the exploitation and the production of high-quality steel grade.
CN2530754Y discloses a kind of continuous casting tundish slag blocking wall, and it is shaped as turning shape.One side wall of slag blocking wall splices mutually by mother-son mouth and impact zone folding shape liner plate, and another side wall and permanent liner are close to, and offers the steel outlet hole of different angle on the side wall of being close to permanent liner.The steel outlet hole of different angle impels steel stream up, has improved steel stream flow pattern and has obviously prolonged the molten steel time of staying, helps the metallic inclusion come-up.Its material can be magnalium matter or alumina-silica or high alumina matter or magnesia or magnalium matter.This patented technology only relates to a kind of novel tundish inclined hole barrier wall structure and material, but still can not solve in the steel outlet hole use problems such as damage is fast, distortion is big, is unfavorable for that steel mill's many stoves number connects the production requirement of watering and the assurance of steel quality.
CN2744441 tundish slag blocking wall and construct mould belongs to the continuous casting installation for casting technical field, is used to solve the adaptability problem of slag blocking wall when working lining adopts basic dry lining material in the irregular tundish.The tundish slag blocking wall is " 7 " font, and periphery is embedded in the working lining on the tundish involucrum, on the plate face steel outlet hole is arranged.Construct mould and be made up of assembly 9-1,9-2, assembly 9-1 is and slag blocking wall corresponding to " 7 " font, and assembly 9-2 is for directly tabular, and symmetry is positioned at assembly 9-1 both sides and the grafting that matches.This patented technology only relates to novel slag blocking wall structure and constructs instrument, and still there is low problem in service life in the steel outlet hole position in this technology use, can not satisfy many stoves and even draw requirement.
CN2794695 relates to a kind of continuous casting tundish integrated impact plate slag blocking wall.Its main feature is: the disjunctor die casting structure of the slag blocking wall in the tundish and shock plate employing magnalium matter spinelle composite, and on the slag blocking wall of shock plate both sides, be respectively arranged with vertical with metope or have the molten steel outlet at inclination angle.The whole aluminum-spinel material that adopts of this patented technology slag blocking wall is favourable to improving the steel flow port life-span, but the slag blocking wall cost increases greatly, can not satisfy the requirement that production unit is controlled cost.
The utility model content
Problem at present slag blocking wall existence with holes, the purpose of this utility model provides a kind of combined type slag blocking wall with holes, utilizes the method for combined tessera, improves the service life at position, hole, guaranteeing on the basis that the tundish flow field requires, satisfying steel mill and improve the requirement of even watering the stove number.
For achieving the above object, the utility model takes following design to realize:
A kind of compound inlaid slag blocking wall with holes comprises the slag blocking wall body (1) and the mosaics (2) that are installed in the tundish appropriate location; The slag blocking wall body is the ladder type body of wall that has inlaid hole, and mosaics has the round platform of steel outlet hole for heart portion; Mosaics (2) is installed on the slag blocking wall body (1), and the center of mosaics (2) has steel outlet hole; Steel outlet hole comprises little steel outlet hole (3) and big steel outlet hole (4).
Slag blocking wall body (1) has inlaid hole, adopts magnalium matter, alumina-silica, high alumina matter, magnesia or magnalium matter material; Mosaics (2) is for adopting corundum matter material, and heart portion has the round platform of the steel outlet hole of certain angle.
Preferably, little steel outlet hole (3) and big steel outlet hole (4) are distributed on the slag blocking wall mosaics (2) for the triangle mode.The quantity of steel outlet hole is decided on actual conditions, and those skilled in the art can select according to actual needs.
Preferably, little steel outlet hole (3) aperture is the through hole of 50-102mm, and its centerline hole is 20 °～48 ° with the center line angle α of vertical slag blocking wall body (1); Little steel outlet hole (3) is 300-398mm with the slag blocking wall distance from bottom.
Preferably, big steel outlet hole (4) is the through hole of aperture 103-200mm, and its centerline hole is 20 °～48 ° with the center line angle β of vertical slag blocking wall body (1).Big steel outlet hole (4) is 200-298mm with the slag blocking wall distance from bottom.
The beneficial effects of the utility model are: adopt compound inlaid tundish slag blocking wall, can be on the basis of a small amount of increase material cost, further prolonged the service life of steel outlet hole, avoid because of changing because of washing away the tundish flow field that premature deformations causes in the steel outlet hole use, the stove number is even drawn in further raising, improve steel quality, reduce field trash, evenly molten steel temperature in tundish has important effect.
Description of drawings
Fig. 1 is a compound slag blocking wall structural representation of the present utility model.Wherein A is the slag blocking wall front view, and B is the slag blocking wall sectional side view.
Among the figure: 1-slag blocking wall body; The 2-mosaics; The little steel outlet hole of 3-; The big steel outlet hole of 4-;
Fig. 2 is the utility model mosaics structural representation.Wherein A is the mosaics vertical view, and B is the mosaics sectional side view.
The specific embodiment
Following examples are to further specify of the present utility model, but the utility model is not limited thereto.
Embodiment 1:
Compound as shown in Figure 1 and Figure 2 slag blocking wall comprises: slag blocking wall body 1; Mosaics 2; Mosaics 2 is installed on the slag blocking wall body 1, has little steel outlet hole 3 and big steel outlet hole 4 on the mosaics respectively.
Steel outlet hole on the mosaics is distributed on the slag blocking wall for the triangle mode, and little steel outlet hole 3 apertures are the through hole of 70mm, and its centerline hole is 35 ° with the center line angle of vertical slag blocking wall body, and little steel outlet hole 3 is 300mm with the slag blocking wall distance from bottom.Big steel outlet hole 4 is the through hole of aperture 150mm, and its centerline hole is 35 ° with the center line angle of vertical slag blocking wall body 1.Big steel outlet hole 4 is 200mm with the slag blocking wall distance from bottom.
The number of mosaics is provided with according to actual needs, and a steel outlet hole is all arranged on each mosaics.
Concrete steps are as follows:
1) makes the slag blocking wall body earlier
The slag blocking wall mold cleaning is clean, water the consumption of material feeding according to the actual size calculating of slag blocking wall body, computational methods are conventional methods of this area; The material feeding of watering that the present invention adopts is a magnesia refractories, also can adopt any standard compliant material feeding of watering in the prior art, as aluminum-spinel material or magnalium material.
The material feeding of watering that mixes is added mixer, amount of water is at 5-7% by weight, the mixed material feeding of watering is directly poured into the special-purpose slag blocking wall mould that is reserved with inlaid hole by the consumption that is calculated, opening bobbing machine vibrates, all closely knit up to the surface, anti-slurry, surface smoothing, reach till the required thickness, general thickness is 100mm-200mm.
2) make mosaics
The mosaics mold cleaning is clean, water the consumption of material feeding according to the actual size calculating of mosaics, computational methods are conventional methods of this area; The material feeding of watering that the present invention adopts is a corundum based refractory materials, also can adopt any standard compliant material feeding of watering in the prior art, as the chrome corundum refractory material.
Corundum pouring material is added mixer, amount of water is at 5-7% by weight, with the mixed mosaics mould that the artificial adding in batches equably of material feeding prepares on request that waters, add material all need open bobbing machine and vibrate at every turn, all closely knit up to the surface, anti-slurry, surface smoothing reaches required thickness and is as the criterion.General required thickness is identical with the slag blocking wall body thickness.
3) two kinds are watered after the material feeding initial set, all demouldings behind the curing in the mold 24h, natural curing 12-24h after the demoulding.
4) carry out compound installation
Magnesium chamotte bond material is coated on pre-formed good mosaics surface, assembled with tundish slag blocking wall body then.In the assembling process, guarantee that the mosaics taper direction along the molten steel flow direction, guarantees the stability of mosaics.
5) baking: by the program of little fire-moderate heat-big fire baking, stoving time is 24h.
Other are with embodiment 1, and difference is: little steel outlet hole 3 apertures are the through hole of 50mm, and its centerline hole is 20 ° with the center line angle of vertical slag blocking wall body, and little steel outlet hole 3 is 350mm with the slag blocking wall distance from bottom.Big steel outlet hole 4 is the through hole of aperture 103mm, and its centerline hole is 20 ° with the center line angle of vertical slag blocking wall body 1.Big steel outlet hole 4 is 250mm with the slag blocking wall distance from bottom.
Embodiment 3
Other are with embodiment 1, and difference is: little steel outlet hole 3 apertures are the through hole of 102mm, and its centerline hole is 48 ° with the center line angle of vertical slag blocking wall body, and little steel outlet hole 3 is 398mm with the slag blocking wall distance from bottom.Big steel outlet hole 4 is the through hole of aperture 200mm, and its centerline hole is 48 ° with the center line angle of vertical slag blocking wall body 1.Big steel outlet hole 4 is 298mm with the slag blocking wall distance from bottom.
In sum, this compound slag blocking wall with holes, adopt the method for combined tessera, can be on the basis of a small amount of increase material cost, further improve the service life at position with holes, make itself and slag blocking wall life-span synchronous, avoided the tundish flow field of molten steel variation that causes because of the steel outlet hole distortion simultaneously, can bring into play the even liquid steel temperature of flow control device such as tundish slag blocking wall in process of production effectively, remove the effect of field trash effect, satisfy steel mill and improve and connect the requirement of watering the stove number.
Claims (5)
1. a combined type tundish slag blocking wall with holes comprises the slag blocking wall body (1) and the mosaics (2) that are installed in the tundish appropriate location; The slag blocking wall body is the ladder type body of wall that has inlaid hole, and mosaics has the round platform of steel outlet hole for heart portion; Mosaics (2) is installed on the slag blocking wall body (1), and the center of mosaics (2) has steel outlet hole; Steel outlet hole comprises little steel outlet hole (3) and big steel outlet hole (4).
2. combined type tundish as claimed in claim 1 slag blocking wall with holes is characterized in that slag blocking wall body (1) has inlaid hole, adopts magnalium matter, alumina-silica, high alumina matter, magnesia or magnalium matter material; Mosaics (2) is for adopting corundum matter material.
3. combined type tundish as claimed in claim 1 slag blocking wall with holes is characterized in that, little steel outlet hole (3) and big steel outlet hole (4) are distributed on the slag blocking wall mosaics (2) for the triangle mode.
4. combined type tundish as claimed in claim 1 slag blocking wall with holes is characterized in that, little steel outlet hole (3) aperture is the through hole of 50-102mm, and its centerline hole is 20 °～48 ° with the center line angle α of vertical slag blocking wall body (1); Little steel outlet hole (3) is 300-398mm with the slag blocking wall distance from bottom.
5. combined type tundish as claimed in claim 1 slag blocking wall with holes, it is characterized in that, big steel outlet hole (4) is the through hole of aperture 103-200mm, its centerline hole is 20 °～48 ° with the center line angle β of vertical slag blocking wall body (1), and big steel outlet hole (4) is 200-298mm with the slag blocking wall distance from bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200283325U CN201455216U (en) | 2009-06-25 | 2009-06-25 | Composite dreg retaining wall with holes for tundish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200283325U CN201455216U (en) | 2009-06-25 | 2009-06-25 | Composite dreg retaining wall with holes for tundish |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201455216U true CN201455216U (en) | 2010-05-12 |
Family
ID=42382566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200283325U Expired - Fee Related CN201455216U (en) | 2009-06-25 | 2009-06-25 | Composite dreg retaining wall with holes for tundish |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201455216U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101869970A (en) * | 2010-05-31 | 2010-10-27 | 莱芜钢铁集团有限公司 | Continuous casting tundish slag blocking wall of composite material and production technology |
| CN103357831A (en) * | 2013-07-30 | 2013-10-23 | 莱芜钢铁集团有限公司 | Tundish multifunctional steady-flow impacting barrel and building method thereof |
| CN104999063A (en) * | 2015-08-03 | 2015-10-28 | 武汉科技大学 | Inclusion catching device for continuous casting tundish-used dual-retaining wall structure |
-
2009
- 2009-06-25 CN CN2009200283325U patent/CN201455216U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101869970A (en) * | 2010-05-31 | 2010-10-27 | 莱芜钢铁集团有限公司 | Continuous casting tundish slag blocking wall of composite material and production technology |
| CN103357831A (en) * | 2013-07-30 | 2013-10-23 | 莱芜钢铁集团有限公司 | Tundish multifunctional steady-flow impacting barrel and building method thereof |
| CN104999063A (en) * | 2015-08-03 | 2015-10-28 | 武汉科技大学 | Inclusion catching device for continuous casting tundish-used dual-retaining wall structure |
| CN104999063B (en) * | 2015-08-03 | 2017-03-08 | 武汉科技大学 | Continuous casting production pair barrier wall structure field trash trap settings |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101579726B (en) | Compound spoil-retaining wall with holes for tundish and preparation process thereof | |
| CN206622605U (en) | A kind of three machines three stream slab CC tundish | |
| CN103862028B (en) | A kind of purging upper nozzle for continuous casting tundish brick cup and installation method thereof | |
| CN104028740A (en) | Upper pocket block for argon blowing of continuous casting tundish and mounting method and application of upper pocket block | |
| CN201455216U (en) | Composite dreg retaining wall with holes for tundish | |
| CN101683690B (en) | Method for constructing bottom of ladle | |
| CN102151822A (en) | Continuous casting tundish and manufacturing method thereof | |
| CN203917892U (en) | Long-life tundish | |
| CN204115489U (en) | Vacuum induction melting furnace water steel chute device | |
| CN100389910C (en) | Ladle neck bush pouring technique | |
| CN101509050B (en) | Method for producing and mending slag separator | |
| CN205501341U (en) | Converter work lining structure | |
| CN1371773A (en) | Integral steel ladle liner repairing technology | |
| CN104858365A (en) | Integral casting production method of water-cooled furnace mouth | |
| CN104057077A (en) | High-pulling-speed sheet billet immersion-type water opening | |
| CN201455253U (en) | Novel molten steel ladle nozzle pocket block | |
| CN204035547U (en) | A kind of purging upper nozzle for continuous casting tundish brick cup | |
| CN217701335U (en) | Ladle bottom structure capable of effectively reducing residual amount of molten steel in ladle | |
| CN102827980A (en) | Construction method for casting material in area of blast-furnace tuyere without supporting die | |
| CN201249260Y (en) | Continuous casting tundish vertical-bending slag wall | |
| CN201381330Y (en) | Working lining of hot-metal swinging stem bar | |
| CN203944831U (en) | Novel anti-leakage ladle lining | |
| CN209491337U (en) | The tundish of resistance to melting loss | |
| CN209477292U (en) | A kind of compound slag blocking wall of molten steel continuous casting production | |
| CN205170908U (en) | Artifical spray repair rifle of full angle of RH dip pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20110625 |