CN105057650A - Multi-flow integrated tundish cover - Google Patents
Multi-flow integrated tundish cover Download PDFInfo
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- CN105057650A CN105057650A CN201510466166.7A CN201510466166A CN105057650A CN 105057650 A CN105057650 A CN 105057650A CN 201510466166 A CN201510466166 A CN 201510466166A CN 105057650 A CN105057650 A CN 105057650A
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- steel
- tundish cover
- multithread
- monoblock type
- baking
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Abstract
The invention relates to a multi-flow integrated tundish cover. The multi-flow integrated tundish cover comprises a steel structure, refractory materials, first anchoring parts and second anchoring parts. The steel structure comprises an outer steel frame and connecting steel parts arranged inside the outer steel frame in a connected manner. The first anchoring parts are evenly fixed to the outer steel frame. The second anchoring parts are evenly fixed to the connecting steel parts. Integral casting molding is carried out on the steel structure and the refractory materials. A plurality of steel flowing holes and baking holes are formed in the steel structure molded through casting conducted on the refractory materials. The steel structure is the same as the opening of a tundish in shape. The thickness of the outer steel frame of the steel structure is the same as that of a tundish cover body. The multi-flow integrated tundish cover has the beneficial effects of being good in thermal shock resistance and scouring resistance, high in strength, good in heat preservation effect and long in service life.
Description
Technical field
The present invention relates to smelting iron and steel technical field, particularly relate to a kind of multithread monoblock type tundish cover watering steel for tundish.
Background technology
In continuous casting system, tundish is as the container of molten steel in the complete rear ladle of access refining, and it is the transition container carrying out continuous casting.Tundish mainly plays decompression, current stabilization, goes to be mingled with, to store and to shunt the effect of molten steel, and it, producing the Warm status of circular flow, directly affects the change of liquid steel temperature.In order to reduce molten steel temperature drop, generally taking strengthening baking of tundish, improving the turnover of tundish heat, optimizing tundish liner body structure, molten steel operation process adds heat preserving agent and the tundish upper surface means such as to add a cover are implemented.In wherein adopting, clad is fairly simple and direct method.
Middle clad directly covers on tundish, then periodically runs together with tundish, namely toast-fills stopper-upper continuous casting platform baking-access molten steel-water steel-lower continuous casting platform to cool.Middle clad plays an important role in running: can prevent radiation loss on the one hand; The splash of heat radiation and molten steel or slag can be stoped on the other hand, protect various equipment, improve operating environment.
At present, in steel mill's multithread, clad all adopts split type little clad to combine substantially, is namely formed a whole by two or more little clad.Parcel is stamped and adopts stamp mass clad, have employing fiber clad, also have the directly thick steel billet of employing.There are some shortcomings in this split type clad: one is need repeatedly to lift, and installs very loaded down with trivial details; Two is there is larger gap between little clad and little clad, very easily alters fire, the termination steel plate of scaling loss clad; Three is that service life is on the low side, and the binding site steel plate of little clad and little clad directly bears flame calcination and high-temperature molten steel heat radiation, and be very easily out of shape scaling loss, cause refractory material to burst apart and peel off, the service life of clad is low; Four is that radiation loss is large, and the little clad of polylith is assembled not easily tight, and the effect of sealing is poor, and heat loss is very large; Five is that the weight of steel billet clad is very heavy, and add the burden that row hangs, and heat insulation effect is poor, radiation loss is large.
Summary of the invention
Technical problem to be solved by this invention is to provide that a kind of Steel Structural Design is excellent, good thermal shock, slag corrosion resistance are strong, intensity is high, the multithread monoblock type tundish cover of high insulating effect and long service life.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of multithread monoblock type tundish cover, comprises steel construction, refractory material, the first anchoring piece and the second anchoring piece; Described steel construction comprises housing steelframe and is connected to the connection steel part of described housing steelframe inside, and described first anchoring piece is fixed on described housing steelframe equably, and described second anchoring piece is fixed on described connection steel part equably; Described steel construction and described refractory material integrated poured shaping, the inside of the steel construction of described refractory material casting is provided with steel outlet hole and baking hole; The appearance profile of described steel construction is consistent with the shape of middle handbag mouth, the thickness of housing steelframe of described steel construction and the consistency of thickness of tundish cover.
Preferably, the cast plane of described tundish cover is symmetrical about its center line.
Preferably, described steel construction inside comprises the multiple steel outlet hole and multiple baking hole that are arranged side by side, and multiple described steel outlet hole and multiple described baking hole successively interleaved are arranged.Preferably, described steel construction inside comprises five steel outlet holes and four baking holes of interleaved setting successively, and steel outlet hole described in one of them is positioned at the centre position of described steel construction.
Preferably, the housing steelframe of described steel construction is welded with multiple hanger, is preferably symmetrical arranged four hangers in the surrounding of housing steelframe.
Preferably, described connection steel part comprises and is multiplely arranged on longitudinal junction steel plate between described steel outlet hole and described baking hole and arranged in parallel, and the lateral connection steel pipe all perpendicular with multiple described longitudinal junction steel plate.
Preferably, multiple described longitudinal junction steel plate is welded to each other into " well " character form structure with multiple described lateral connection steel pipe, and described steel outlet hole and described baking Kong Jun are positioned at the middle part of described " well " character form structure.
Preferably, the shape of cross section in described steel outlet hole and described baking hole is circular, ellipse, Long Circle or rectangle.
Preferably, the vertical sectional shape in described steel outlet hole and described baking hole is isosceles trapezoid.
Preferably, the performance parameter of described refractory material is: 110 DEG C × 24h dries rear rupture strength >=6Mpa, compressive resistance >=30Mpa; Rupture strength >=8Mpa, compressive resistance >=50Mpa after 1500 DEG C × 3h burns.
Based on technique scheme, the invention has the beneficial effects as follows:
1. tundish cover adopts excellent Steel Structural Design and refractory material casting, the housing steelframe in steel construction be connected steel part and be not all directly heated, steel construction deflection is little, reduces the stress impact of tundish cover;
2. tundish cover adopts unshape refractory integrated poured, and form through low-temperature bake, tundish cover overall performance is good, and intensity is high, and in use cracky does not peel off;
3. tundish cover steel construction and refractory material matching performance good, long service life, improves the economic benefit of steel mill;
4. the unshape refractory thermal shock resistance of tundish cover employing is good, can meet large, the cold and hot change of temperature difference instructions for use frequently in tundish periodic job process;
5. tundish cover adopts high-quality refractory material, and its resistance to slag corrosion is good, and anti-molten steel scouring capability is strong;
6. monoblock type tundish cover, good sealing effect, has good heat insulation and preservation effect, effectively can stop the heat radiation of molten steel in tundish, reduces molten steel temperature drop, economize energy;
7. monoblock type tundish cover, convenient installation, alleviates labor strength.
Therefore, the present invention has good thermal shock, slag corrosion resistance is strong, intensity is high, the feature of high insulating effect and long service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is along A-A schematic cross-section in Fig. 1;
Fig. 3 is the schematic diagram of steel construction in Fig. 1, the first anchoring piece and the second anchoring piece.
In accompanying drawing, the list of parts representated by each label is as follows:
1. steel construction, 2. refractory material, 3. the first anchoring piece, 4. the second anchoring piece, 5. housing steelframe, 6. longitudinal junction steel plate, 7. lateral connection steel pipe, 8. steel outlet hole, 9. toast hole, 10. hanger.
Detailed description of the invention
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
As shown in Figure 1 to Figure 3, a kind of multithread monoblock type tundish cover, comprises steel construction 1, refractory material 2, first anchoring piece 3 and the second anchoring piece 4; Described steel construction 1 comprises housing steelframe 5 and is connected to the connection steel part of described housing steelframe 5 inside, and described first anchoring piece 3 is fixed on described housing steelframe 5 equably, and described second anchoring piece 4 is fixed on described connection steel part equably; Described steel construction 1 is integrated poured shaping with described refractory material 2, and the inside of the steel construction 1 that described refractory material 2 is poured into a mould is provided with steel outlet hole 8 and baking hole 9; The thickness of housing steelframe 5 of described steel construction 1 and the consistency of thickness of tundish cover, the appearance profile of described steel construction 1 is consistent with the shape of middle handbag mouth, the housing steelframe 5 of the steel construction 1 in Fig. 1 is a kind of special-shaped framework, comprises two longitudinal steel plates of head and the tail welding successively, a horizontal steel plate and four oblique steel plates.
Preferably, the cast plane of described tundish cover is symmetrical about its center line.
Preferably, described steel construction 1 inside comprises the multiple steel outlet holes 8 and multiple baking hole 9 that are arranged side by side, and multiple described steel outlet hole 8 and multiple described baking hole 9 successively interleaved are arranged.Preferably, described steel construction 1 inside comprises five steel outlet holes 8 and four baking holes 9 of interleaved setting successively, and steel outlet hole 8 described in one of them is positioned at the centre position of described steel construction 1.
Preferably, the housing steelframe 5 of described steel construction 1 is welded with multiple hanger 10, is preferably symmetrical arranged four hangers 10 in the surrounding of housing steelframe 5.
Preferably, described connection steel part comprises and is multiplely arranged on longitudinal junction steel plate 6 between described steel outlet hole 8 and described baking hole 9 and arranged in parallel, and the lateral connection steel pipe 7 all perpendicular with multiple described longitudinal junction steel plate 6.
Preferably, multiple described longitudinal junction steel plate 6 is welded to each other into " well " character form structure with multiple described lateral connection steel pipe 7, and described steel outlet hole 8 and described baking hole 9 are all positioned at the middle part of described " well " character form structure.
Preferably, the shape of cross section in described steel outlet hole 8 and described baking hole 9 is circular, ellipse, Long Circle or rectangle.
Preferably, as shown in Figure 2, the vertical sectional shape in described steel outlet hole 8 and described baking hole 9 is isosceles trapezoid.
Preferably, the performance parameter of described refractory material 2 is: 110 DEG C × 24h dries rear rupture strength >=6Mpa, compressive resistance >=30Mpa; Rupture strength >=8Mpa, compressive resistance >=50Mpa after 1500 DEG C × 3h burns.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a multithread monoblock type tundish cover, is characterized in that: comprise steel construction, refractory material, the first anchoring piece and the second anchoring piece; Described steel construction comprises housing steelframe and is connected to the connection steel part of described housing steelframe inside, the thickness of housing steelframe of described steel construction and the consistency of thickness of tundish cover, described first anchoring piece is fixed on described housing steelframe equably, and described second anchoring piece is fixed on described connection steel part equably; Described steel construction and described refractory material integrated poured shaping, the inside of the steel construction of described refractory material casting is provided with steel outlet hole and baking hole; The appearance profile of described steel construction is consistent with the shape of middle handbag mouth.
2. a kind of multithread monoblock type tundish cover according to claim 1, it is characterized in that, the cast plane of described tundish cover is symmetrical about its center line.
3. a kind of multithread monoblock type tundish cover according to claim 1, is characterized in that, described steel construction inside comprises the multiple steel outlet hole and multiple baking hole that are arranged side by side, and multiple described steel outlet hole and multiple described baking hole successively interleaved are arranged.
4. a kind of multithread monoblock type tundish cover according to claim 3, it is characterized in that, described steel construction inside comprises five steel outlet holes and four baking holes of interleaved setting successively, and steel outlet hole described in one of them is positioned at the centre position of described steel construction.
5. a kind of multithread monoblock type tundish cover according to claim 1, is characterized in that, the housing steelframe of described steel construction is welded with multiple hanger.
6. a kind of multithread monoblock type tundish cover according to claim 1, it is characterized in that, described connection steel part comprises and is multiplely arranged on longitudinal junction steel plate between described steel outlet hole and described baking hole and arranged in parallel, and the lateral connection steel pipe all perpendicular with multiple described longitudinal junction steel plate.
7. a kind of multithread monoblock type tundish cover according to claim 6, it is characterized in that, multiple described longitudinal junction steel plate is welded to each other into " well " character form structure with multiple described lateral connection steel pipe, and described steel outlet hole and described baking Kong Jun are positioned at the middle part of described " well " character form structure.
8. a kind of multithread monoblock type tundish cover according to claim 1, is characterized in that, the shape of cross section in described steel outlet hole and described baking hole is circular, ellipse, Long Circle or rectangle.
9. a kind of multithread monoblock type tundish cover according to claim 1, it is characterized in that, the vertical sectional shape in described steel outlet hole and described baking hole is isosceles trapezoid.
10. according to described a kind of multithread monoblock type tundish cover arbitrary in claim 1 to 9, it is characterized in that, the performance parameter of described refractory material is: 110 DEG C × 24h dries rear rupture strength >=6Mpa, compressive resistance >=30Mpa; Rupture strength >=8Mpa, compressive resistance >=50Mpa after 1500 DEG C × 3h burns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510466166.7A CN105057650A (en) | 2015-07-31 | 2015-07-31 | Multi-flow integrated tundish cover |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510466166.7A CN105057650A (en) | 2015-07-31 | 2015-07-31 | Multi-flow integrated tundish cover |
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| CN105057650A true CN105057650A (en) | 2015-11-18 |
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| CN201510466166.7A Pending CN105057650A (en) | 2015-07-31 | 2015-07-31 | Multi-flow integrated tundish cover |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414537A (en) * | 2015-12-10 | 2016-03-23 | 马鞍山钢铁股份有限公司 | Method and equipment capable of prolonging service life of cover plate of intermediate tank |
| CN108247028A (en) * | 2018-02-02 | 2018-07-06 | 上海利尔耐火材料有限公司 | A kind of long-life tundish compound frame structure backpack cover |
| CN109622928A (en) * | 2019-01-16 | 2019-04-16 | 山东莱钢永锋钢铁有限公司 | Backpack cover in a kind of meter of type skeleton |
Citations (8)
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|---|---|---|---|---|
| JPH09192822A (en) * | 1996-01-17 | 1997-07-29 | Astec Irie:Kk | Tundish cover |
| CN201644770U (en) * | 2010-03-26 | 2010-11-24 | 莱芜钢铁集团有限公司 | Double-sided tundish cast steel cover plate of continuous caster |
| CN201744634U (en) * | 2010-06-29 | 2011-02-16 | 武汉威林炉衬材料有限责任公司 | Middle ladle cover for continuous casting |
| CN202270963U (en) * | 2011-09-02 | 2012-06-13 | 鞍钢股份有限公司 | Tundish cover using embedded holes |
| CN202824636U (en) * | 2012-10-17 | 2013-03-27 | 武汉钢铁(集团)公司 | Tundish cover plate |
| CN203695937U (en) * | 2014-02-28 | 2014-07-09 | 鞍山悦凯耐火材料有限公司 | Tundish cover for continuous casting production line |
| PL218812B1 (en) * | 2013-02-25 | 2015-01-30 | Lstrokukasik Jerzy Przedsiębiorstwo Techniczne Techmod | Cover of the tundish for continuous casting of steel |
| CN204779774U (en) * | 2015-07-31 | 2015-11-18 | 武汉威林科技股份有限公司 | Package be built by contract in middle of multithread is integral |
-
2015
- 2015-07-31 CN CN201510466166.7A patent/CN105057650A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09192822A (en) * | 1996-01-17 | 1997-07-29 | Astec Irie:Kk | Tundish cover |
| CN201644770U (en) * | 2010-03-26 | 2010-11-24 | 莱芜钢铁集团有限公司 | Double-sided tundish cast steel cover plate of continuous caster |
| CN201744634U (en) * | 2010-06-29 | 2011-02-16 | 武汉威林炉衬材料有限责任公司 | Middle ladle cover for continuous casting |
| CN202270963U (en) * | 2011-09-02 | 2012-06-13 | 鞍钢股份有限公司 | Tundish cover using embedded holes |
| CN202824636U (en) * | 2012-10-17 | 2013-03-27 | 武汉钢铁(集团)公司 | Tundish cover plate |
| PL218812B1 (en) * | 2013-02-25 | 2015-01-30 | Lstrokukasik Jerzy Przedsiębiorstwo Techniczne Techmod | Cover of the tundish for continuous casting of steel |
| CN203695937U (en) * | 2014-02-28 | 2014-07-09 | 鞍山悦凯耐火材料有限公司 | Tundish cover for continuous casting production line |
| CN204779774U (en) * | 2015-07-31 | 2015-11-18 | 武汉威林科技股份有限公司 | Package be built by contract in middle of multithread is integral |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414537A (en) * | 2015-12-10 | 2016-03-23 | 马鞍山钢铁股份有限公司 | Method and equipment capable of prolonging service life of cover plate of intermediate tank |
| CN108247028A (en) * | 2018-02-02 | 2018-07-06 | 上海利尔耐火材料有限公司 | A kind of long-life tundish compound frame structure backpack cover |
| CN109622928A (en) * | 2019-01-16 | 2019-04-16 | 山东莱钢永锋钢铁有限公司 | Backpack cover in a kind of meter of type skeleton |
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Application publication date: 20151118 |
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