CN201922036U - Novel working lining structure of tundish - Google Patents
Novel working lining structure of tundish Download PDFInfo
- Publication number
- CN201922036U CN201922036U CN2011200284325U CN201120028432U CN201922036U CN 201922036 U CN201922036 U CN 201922036U CN 2011200284325 U CN2011200284325 U CN 2011200284325U CN 201120028432 U CN201120028432 U CN 201120028432U CN 201922036 U CN201922036 U CN 201922036U
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- CN
- China
- Prior art keywords
- tundish
- working lining
- magnesia
- vortex
- lining structure
- 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
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- Compositions Of Oxide Ceramics (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The utility model relates to a novel working lining structure of tundish and is used for casting steel. The structure comprises a tundish bottom and a tundish wall, wherein the tundish wall comprises an eddy area and a non-eddy area. The novel working lining structure is characterized in that magnesia-carbon bricks are used for building a working lining of the eddy area of the tundish wall, and the magnesia-carbon bricks are glued through fire clay made from magnesium; and dry materials made from the magnesium are used for building the tundish bottom and the non-eddy area of the tundish wall. Compared with the prior art, the novel working lining structure has the beneficial effects that the magnesia-carbon bricks are used for building the eddy area of the working lining of the tundish, thereby effectively avoiding steel penetration and collapse of the working lining of the tundish and obviously improving the service life of the working lining of the tundish.
Description
Technical field
The utility model relates to a kind of structural design that is used to water the tundish working lining that steel uses.
Background technology
In recent years, along with the progress of steel-smelting technology, the tundish working lining has also experienced the fast development along with continuous casting process, and the requirement of the centre job contract being made lining improves, and tundish dry material has appearred in late 1990s, and has progressively replaced tundish paint.Tundish dry vibratory material has calcareous two kinds of magnesia and magnesium, is magnesium dry-type stock and use more.Magnesia tundish dry material has the following advantages: (1) dry type material is non-water system refractory material.Because the dry type material is not moisture, make the suction hydrogen rate of molten steel descend.(2) construction is simple, easy to maintenance, uses the back skull to remove easily, thereby has increased the utilization rate of tundish.(3) energy consumption reduces, because conventional tundish paint contains 20% one 30% moisture content, therefore need be in higher temperature (800 ℃-1000 ℃) baking 2-6 hour down, and the dry type material only need toast can make in 45 minutes to 1.5 hours below lower temperature (200 ℃-300 ℃) and comes into operation.(4) complexity of construction equipment reduces.But still there is a comparatively general problem in magnesium dry-type stock in using engineering: watering in the process of steel, tundish two is worn the steel and the bag phenomenon of collapsing easily.So not only cause security incident easily, and the working lining life-span of tundish is reduced greatly.This is that tapping hole place, tundish two exists a vortex because in steel pouring process.Because the existence of eddy current cause this position working lining bearing bigger impulsive force, and the intensity of magnesium dry-type stock is low, porosity height, scour resistance is poor, therefore just occurs wearing the steel and the bag phenomenon of collapsing easily at this position.
Summary of the invention
In order to solve the problem of above-mentioned existence, the utility model provides a kind of novel tundish working lining structure, and this tundish working lining can effectively improve service life, and is safe and reliable.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of novel tundish working lining structure comprises at the bottom of the tundish bag and the bag wall, and the bag wall comprises vortex and non-vortex, it is characterized in that, the vortex working lining of bag wall adopts magnesia carbon brick to build by laying bricks or stones, between the magnesia carbon brick with magnesia chamotte gluing; Build by laying bricks or stones with magnesium dry-type stock at the bag end and position, Bao Bifei vortex.
Compared with prior art, the beneficial effects of the utility model are:
Adopt magnesia carbon brick to build the vortex of tundish working lining by laying bricks or stones, what can effectively prevent the tundish working lining wears steel and the phenomenon of caving in, and has significantly improved the service life of tundish working lining.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2, Fig. 3 and Fig. 4 build the magnesia carbon brick schematic diagram of using the vortex by laying bricks or stones.
Among the figure: the 9-magnesium dry-type stock of working lining 3-integral column of sagger 4-submersed nozzle 5-slag weir 6-long nozzle 7-flow straightener 8-vortex, 1-tundish permanent liner 2-vortex
The specific embodiment
See Fig. 1, a kind of novel tundish working lining structure comprises at the bottom of the tundish bag and the bag wall, and the bag wall comprises vortex 8 and non-vortex, and the vortex working lining 2 of bag wall adopts magnesia carbon bricks to build by laying bricks or stones, between the magnesia carbon brick with magnesia chamotte gluing; Build by laying bricks or stones with magnesium dry-type stock at the bag end and position, Bao Bifei vortex.The shape of magnesia carbon brick such as Fig. 2, Fig. 3, shown in Figure 4.
Concrete implementation step is:
1) foreign material on the cleaning tundish permanent liner 1 are repaired the damaged position of permanent liner;
2) build vortex working lining 2 by laying bricks or stones with magnesia carbon brick, pave the tundish bottom with magnesium dry-type stock 9 then;
3) mould being put into tundish adjustment mould makes its each spot size satisfy construction requirement;
4) set baking temperature and stoving time according to actual conditions, make the tundish working lining have enough demoulding strengths;
5) demoulding; Check after the demoulding whether working lining has damaged position, if having and breakage is not too seriously repaired with magnesia coating; If the slit is arranged at magnesia carbon brick and magnesium dry-type stock boundary, then need be with magnesia coating blind.
Claims (1)
1. novel tundish working lining structure comprises at the bottom of the tundish bag and the bag wall, and the bag wall comprises vortex and non-vortex, it is characterized in that, the vortex working lining of bag wall adopts magnesia carbon brick to build by laying bricks or stones, between the magnesia carbon brick with magnesia chamotte gluing; Build by laying bricks or stones with magnesium dry-type stock at the bag end and position, Bao Bifei vortex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200284325U CN201922036U (en) | 2011-01-27 | 2011-01-27 | Novel working lining structure of tundish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200284325U CN201922036U (en) | 2011-01-27 | 2011-01-27 | Novel working lining structure of tundish |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201922036U true CN201922036U (en) | 2011-08-10 |
Family
ID=44425905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200284325U Expired - Fee Related CN201922036U (en) | 2011-01-27 | 2011-01-27 | Novel working lining structure of tundish |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201922036U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699316A (en) * | 2012-05-10 | 2012-10-03 | 莱芜钢铁集团有限公司 | Beam blank continuous casting machine tundish working lining, construction tire film of working lining and preparation method of working lining |
| CN104384489A (en) * | 2014-11-06 | 2015-03-04 | 山西太钢不锈钢股份有限公司 | Steel ladle working lining building method |
| CN110315060A (en) * | 2018-03-30 | 2019-10-11 | 宝山钢铁股份有限公司 | A kind of flow control formula tundish structure may filter that the field trash in molten steel |
-
2011
- 2011-01-27 CN CN2011200284325U patent/CN201922036U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699316A (en) * | 2012-05-10 | 2012-10-03 | 莱芜钢铁集团有限公司 | Beam blank continuous casting machine tundish working lining, construction tire film of working lining and preparation method of working lining |
| CN104384489A (en) * | 2014-11-06 | 2015-03-04 | 山西太钢不锈钢股份有限公司 | Steel ladle working lining building method |
| CN104384489B (en) * | 2014-11-06 | 2016-09-07 | 山西太钢不锈钢股份有限公司 | A kind of ladle working lining building method |
| CN110315060A (en) * | 2018-03-30 | 2019-10-11 | 宝山钢铁股份有限公司 | A kind of flow control formula tundish structure may filter that the field trash in molten steel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20150127 |
|
| EXPY | Termination of patent right or utility model |