CN105108125A - Thin-wall-blank continuous casting tundish - Google Patents
Thin-wall-blank continuous casting tundish Download PDFInfo
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- CN105108125A CN105108125A CN201510515403.4A CN201510515403A CN105108125A CN 105108125 A CN105108125 A CN 105108125A CN 201510515403 A CN201510515403 A CN 201510515403A CN 105108125 A CN105108125 A CN 105108125A
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- continuous casting
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- tundish
- slag
- molten steel
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Abstract
The invention belongs to the field of melt casting containers, and particularly discloses a thin-wall-blank continuous casting tundish. The thin-wall-blank continuous casting tundish comprises a tundish body. Liquid outlets are formed in the bottom of the tundish body. A liquid inlet pipe is arranged at the top of the tundish body. The thin-wall-blank continuous casting tundish further comprises slag stopping units. Each slag stopping unit comprises a middle plate and two side plates. A plurality of molten steel holes are formed in each middle plate. Through holes and a groove are formed in each side plate and communicated. The two sides of each middle plate are connected with the two corresponding side plates respectively. The middle plates and the side plates are fixed to the inner wall of the tundish. The through holes are communicated with the molten steel holes through the grooves. Compared with a traditional thin-wall-blank continuous casting tundish, the thin-wall-blank continuous casting tundish in the scheme has the advantages that traditional slag stopping walls are replaced by the slag stopping units, and therefore the flowing path of molten slag is greatly increased; as the molten slag has the characteristics of being poor in fluidity and prone to bonding, the most of the molten slag is stopped, the molten steel entering a crystallizer is purer accordingly, and the product quality is improved.
Description
Technical field
The invention belongs to casting fused mass field of containers, particularly relate to a kind of thin-walled base continuous casting production.
Background technology
Sheet blank continuous casting tundish is important metallurgical technology equipment, it is not only distribution, ensures the buffer of molten steel direct casting, it is still removed non-metallic inclusion, evenly liquid steel temperature, prevents slag from entering the key equipment of the guarantee slab qualities such as crystallizer, and its metallurgical effect directly affects the quality of strand.Because sheet billet quality plays conclusive effect to end product quality, therefore, play the metallurgical effect of sheet blank continuous casting tundish to greatest extent, further raising Cleanliness of Molten Steel and thin sheet continuous casting base quality, to meet the demand of variety development, strengthen the competitiveness of light sheet products at home and abroad steel market.
As shown in Figure 4, existing thin-walled base continuous casting production comprises: bottom is provided with the tundish body 10 of liquid outlet 11, upper slag blocking wall 20(weir), lower slag blocking wall 30(dam), the top of tundish body 10 is provided with feed tube 12.Melt slag mostly can bond together, and there is certain buoyancy, float on molten steel A surface, thus stopped by slag blocking wall.Although slag blocking wall serves certain pushing off the slag and reduces the effect of molten steel A speed, still there is part to melt slag and flow in crystallizer, cause the degree of purity of the molten steel A in crystallizer not high, the product made of low quality.
So, be badly in need of the tundish for thin-walled base continuous casting that a kind of pushing off the slag is effective, improve the quality of product.
Summary of the invention
Object of the present invention is at the sheet blank continuous casting tundish providing a kind of pushing off the slag effective.
In order to achieve the above object, base case of the present invention is: thin-walled base continuous casting production, comprise the tundish body that bottom is provided with liquid outlet, the top of described tundish body is provided with feed tube, wherein, also comprise pushing off the slag unit, described pushing off the slag unit comprises intermediate plate and two blocks of side plates, intermediate plate is provided with some molten steel holes, described side plate is provided with through hole and groove, and described through hole is communicated with groove, and the both sides of described intermediate plate are connected with two blocks of side plates respectively, intermediate plate and side plate are all fixed on the inwall of tundish, and described through hole is communicated with molten steel hole by groove.
The principle of this base case is: molten steel enters into tundish body from the feed tube of tundish, and the most slag that melts bonds together, and floats on molten steel surface.Its small portion melts slag when flowing into the through hole of side plate together with molten steel, and molten steel then enters the groove of side plate from through hole, and flows in the groove of another side plate by the molten steel hole in intermediate plate, finally flows out from the through hole of another side plate.And melt slag and easily bond together, size is larger, be difficult to enter in groove, and, for molten iron, the mobility of melting slag is poor, and the whole flow path of through hole → groove → molten steel hole → groove → through hole, considerably increase the flow path melting slag, intermediate plate plays good filtration, even if having small part to melt slag enter into groove, be also difficult to pass through from another side plate.
The beneficial effect of this base case is: feed tube is for common inlet, and when the liquid level of molten steel did not have feed tube, molten steel then can enter in tundish relatively stably.The quantitative design in molten steel hole is several, when melt slag blocking wherein a part of molten steel hole time, molten steel still can pass through.Compared with traditional sheet blank continuous casting tundish, this programme pushing off the slag unit replaces traditional slag blocking wall, considerably increase the flow path melting slag, slag poor fluidity is melted in utilization, easily bonding feature, block major part and melt slag, thus make the molten steel that enters in crystallizer purer, provide the quality of product.
Scheme two: based on this, scheme is preferred, and described through hole is circular hole, and relative to square hole, stress is not concentrated relatively, intensity is larger, and more easily processes.
Scheme three: based on this, scheme is preferred, described molten steel hole is circular hole, and relative to square hole, stress is not concentrated relatively, and intensity is larger, and more easily processes.
Scheme four: based on this, scheme is preferred, and described intermediate plate and side plate are silica fire resistant plate.Silica refractory at high temperature has the ability of good acid resistance and refractory slag corrosion, long service life.
Scheme five: preferred to scheme four either a program of scheme based on this, the quantity of described pushing off the slag unit is two, and is provided with and mates liquid outlet with it.The tundish of this design can supply molten iron to two crystallizers in both sides simultaneously, and operating efficiency is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of thin-walled base continuous casting production embodiment of the present invention;
Fig. 2 is the structural representation of pushing off the slag unit in Fig. 1;
Fig. 3 is the explosive view of Fig. 2;
Fig. 4 is the structural representation of traditional thin-walled base continuous casting production.
Detailed description of the invention
Below by detailed description of the invention, the present invention is further detailed explanation:
Reference numeral in Figure of description comprises: tundish body 10, liquid outlet 11, feed tube 12, upper slag blocking wall 20, lower slag blocking wall 30, intermediate plate 110, molten steel hole 111, side plate 120, through hole 121, groove 122, molten steel A.
As shown in Figure 1, thin-walled base continuous casting production, comprise the tundish body 10 that bottom is drilled with liquid outlet 11, the top of tundish body 10 is provided with feed tube 12, wherein, also comprises pushing off the slag unit.As shown in Figure 2 and Figure 3, pushing off the slag unit comprises intermediate plate 110 and two blocks of side plates 120.Intermediate plate 110 is provided with 55 circular molten steel holes 111.Side plate 120 is provided with two circular through holes 121 and a groove 122, and corresponding to the position of the position of through hole 121 and intermediate plate 110 not being installed molten steel hole 111, through hole 121 is communicated with groove 122.The left and right sides of intermediate plate 110 is welded and fixed with two blocks of side plates 120 respectively, and intermediate plate 110 and side plate 120 are all welded on the inwall of tundish 10, and through hole 121 is communicated with molten steel hole 111 by groove 122.In addition, intermediate plate 110 and side plate 120 are silica fire resistant plate and make.Silica refractory at high temperature has the ability of good acid resistance and refractory slag corrosion, long service life.
During specific works, molten steel enters into tundish body 10 from the feed tube 12 of tundish body 10, and the most slag that melts bonds together, and floats on molten steel surface.Its small portion melts slag when flowing into through hole 121 place of side plate 120 together with molten steel, molten steel then enters the groove 122 of side plate 120 from through hole 121, and flow in the groove 122 of another side plate 120 by the molten steel hole 111 in intermediate plate 110, finally flow out from the through hole 121 of another side plate 122.And melt slag and easily bond together, size is larger, be difficult to enter in groove 122, further, for molten iron, the mobility of melting slag is poor, and the whole flow path of through hole 121 → groove 122 → molten steel hole 111 → groove, 122 → through hole 121, considerably increase the flow path melting slag, even if having small part to melt slag enter into groove 122, be also difficult to pass through from another side plate 120.
Above-described is only embodiments of the invention, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from structure of the present invention, some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.The protection domain that this application claims should be as the criterion with the content of its claim, and the detailed description of the invention in description etc. record the content that may be used for explaining claim.
Claims (5)
1. thin-walled base continuous casting production, comprise the tundish body that bottom is provided with liquid outlet, the top of described tundish body is provided with feed tube, it is characterized in that, also comprise pushing off the slag unit, described pushing off the slag unit comprises intermediate plate and two blocks of side plates, intermediate plate is provided with some molten steel holes, described side plate is provided with through hole and groove, described through hole is communicated with groove, the both sides of described intermediate plate are connected with two blocks of side plates respectively, and intermediate plate and side plate are all fixed on the inwall of tundish, and described through hole is communicated with molten steel hole by groove.
2. thin-walled base continuous casting production as claimed in claim 1, it is characterized in that, described through hole is circular hole.
3. thin-walled base continuous casting production as claimed in claim 1, it is characterized in that, described molten steel hole is circular hole.
4. thin-walled base continuous casting production as claimed in claim 1, it is characterized in that, described intermediate plate and side plate are silica fire resistant plate.
5. the thin-walled base continuous casting production as described in any one of claim 1-4, is characterized in that, the quantity of described pushing off the slag unit is two, and is provided with and mates liquid outlet with it.
Priority Applications (1)
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CN201510515403.4A CN105108125A (en) | 2015-08-21 | 2015-08-21 | Thin-wall-blank continuous casting tundish |
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CN201510515403.4A CN105108125A (en) | 2015-08-21 | 2015-08-21 | Thin-wall-blank continuous casting tundish |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108907103A (en) * | 2018-08-17 | 2018-11-30 | 共享装备股份有限公司 | A kind of stepped pouring system pouring basin and its application method |
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2015
- 2015-08-21 CN CN201510515403.4A patent/CN105108125A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108907103A (en) * | 2018-08-17 | 2018-11-30 | 共享装备股份有限公司 | A kind of stepped pouring system pouring basin and its application method |
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Application publication date: 20151202 |
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