CN219766735U - Crystallizer liquid level flow stabilizing device - Google Patents
Crystallizer liquid level flow stabilizing device Download PDFInfo
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- CN219766735U CN219766735U CN202321154821.1U CN202321154821U CN219766735U CN 219766735 U CN219766735 U CN 219766735U CN 202321154821 U CN202321154821 U CN 202321154821U CN 219766735 U CN219766735 U CN 219766735U
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- crystallizer
- stabilizer
- wide
- pouring nozzle
- molten steel
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- 239000007788 liquid Substances 0.000 title claims abstract description 39
- 230000000087 stabilizing effect Effects 0.000 title description 3
- 239000003381 stabilizer Substances 0.000 claims abstract description 78
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 52
- 239000010959 steel Substances 0.000 claims abstract description 52
- 239000002893 slag Substances 0.000 claims abstract description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 66
- 229910052802 copper Inorganic materials 0.000 claims description 62
- 239000010949 copper Substances 0.000 claims description 62
- 208000029154 Narrow face Diseases 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000005266 casting Methods 0.000 abstract description 15
- 238000005096 rolling process Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000005192 partition Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009749 continuous casting Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Continuous Casting (AREA)
Abstract
The utility model belongs to the technical field of casting, and particularly provides a crystallizer liquid level flow stabilizer, which comprises a crystallizer II, wherein a flow stabilizer is inserted into the crystallizer II and is positioned between a pouring nozzle I and a pouring nozzle II; the utility model is helpful to make the temperature of the molten steel in the second crystallizer tend to be uniform, and avoids the problem of slag rolling or liquid level fluctuation caused by the mutual interference of the molten steel between the double pouring nozzles.
Description
Technical Field
The utility model belongs to the technical field of casting, and particularly relates to a crystallizer liquid level flow stabilizer.
Background
As shown in fig. 1, in the slab continuous casting process, molten steel in a tundish 1 flows into a crystallizer I3 through a water gap 2 to be solidified to form an initial blank shell, and then enters a secondary cooling guide system 5 to be cooled and solidified gradually for forming.
As shown in fig. 2, the ultra-wide-plate blank (plate blank with the width of more than 3000 mm) continuous casting crystallizer is formed by combining two crystallizer narrow-side copper plates (a crystallizer narrow-side copper plate I6 and a crystallizer narrow-side copper plate II 7) and two wide-side copper plates (a crystallizer wide-side copper plate I8 and a crystallizer wide-side copper plate II 9) into a cuboid pipeline, and after molten steel is injected through double pouring nozzles (a pouring nozzle I10 and a pouring nozzle II 11), powder protection slag is added to quickly melt into a liquid protection slag layer 12 with lighter density than the molten steel, so that the liquid level of the molten steel is isolated from air, and the casting is realized. The molten steel is solidified in the second crystallizer to form a billet shell, and the molten steel in the second crystallizer is protected from moving into a secondary cooling water area to be further solidified into a casting blank 4.
In the casting process, because the width of the ultra-wide crystallizer liquid pool is large, the time when a single casting nozzle molten steel flows to the narrow copper plates (the narrow copper plate I6 and the narrow copper plate II 7) at two sides of the crystallizer is long, the temperature reduction amplitude is large, and the casting powder is poor in dissolution. The adoption of the double pouring nozzles (the first pouring nozzle 10 and the second pouring nozzle 11) can improve molten steel smoothness, temperature uniformity and slag melting property of a single nozzle, but the molten steel between the first pouring nozzle 10 and the second pouring nozzle 11 is easy to interfere with each other in the middle part, so that the liquid level of the middle interference part is fluctuated, and the casting slag is involved in the molten steel to remain in a solidified casting blank, thereby not only affecting the quality of the casting blank, but also bringing difficulty to liquid level control.
The Chinese patent document with publication number of CN206898380U and publication number of 2018 1 month 19 discloses a flow-stabilizing self-control device for the flow groove liquid level of a casting machine, which comprises a bracket arranged on the flow groove, four-bar linkage pieces, a flow-controlling float assembly, a flow plug assembly and a flow groove partition plate, wherein the bracket consists of a top plate, left and right side plates, the bottoms of the side plates are welded on the flow groove, the four-bar linkage pieces consist of a lower rod piece, a left rod piece, a right rod piece and a linkage rod, the upper ends of the left and right rod pieces are connected with the top plate on the bracket, the lower ends are hinged with the lower rod piece, one end of the lower rod piece is connected with the flow plug assembly, one end of the linkage rod is welded with the left rod piece, the other end is connected with the flow-controlling float assembly, the flow groove partition plate is arranged at a variable-diameter step part in the flow groove, a flow through hole is arranged on the partition plate, and the flow plug assembly is positioned in the flow groove on the right of the partition plate. The flow stabilizing device can effectively ensure the steady flow of the liquid level in the launder, automatically control the height of the liquid level in the launder, ensure the stable flow of the aluminum liquid, greatly improve the production efficiency and ensure the product quality. However, this document does not solve the problem of the smooth interference of the two pouring spouts with each other.
Disclosure of Invention
The utility model provides a crystallizer liquid level flow stabilizer, which aims to solve the problem of mutual fluency interference between double pouring water gaps in the prior art.
The utility model provides a crystallizer liquid level flow stabilizer, which comprises a crystallizer II, wherein the crystallizer II comprises a crystallizer narrow-side copper plate I, a crystallizer narrow-side copper plate II, a crystallizer wide-side copper plate I and a crystallizer wide-side copper plate II, the crystallizer narrow-side copper plate I, the crystallizer wide-side copper plate II and the crystallizer wide-side copper plate II are sequentially Zhou Xianglian rectangular, a pouring nozzle I and a pouring nozzle II are arranged in the upper part of the crystallizer II at intervals from left to right, the pouring nozzle I and the pouring nozzle II are vertically arranged, molten steel is injected into the crystallizer II through the pouring nozzle I and the pouring nozzle II, a protective slag layer is added on the molten steel in the crystallizer II, and a flow stabilizer is inserted into the crystallizer II and positioned between the pouring nozzle I and the pouring nozzle II.
Preferably, the part of the flow stabilizer below the liquid level of molten steel in the second crystallizer is conical and the cone tip is downward.
Preferably, the bottom end height of the first pouring nozzle and the bottom end height of the second pouring nozzle are smaller than the bottom end height of the flow stabilizer.
Preferably, the width of the current stabilizer is smaller than the distance between the crystallizer wide copper plate I and the crystallizer wide copper plate II, and the crystallizer wide copper plate I and the crystallizer wide copper plate II are not contacted with the current stabilizer.
Preferably, the distance between the current stabilizer and the first wide copper plate of the crystallizer is equal to the distance between the current stabilizer and the second wide copper plate of the crystallizer.
Preferably, the bottom end of the current stabilizer is an arc surface.
Preferably, the current stabilizer is made of high-temperature resistant materials.
Preferably, the flow stabilizer is positioned on the central axis between the first pouring nozzle and the second pouring nozzle.
The utility model has the beneficial effects that:
1. according to the crystallizer liquid level flow stabilizer provided by the utility model, the flow stabilizer is inserted between the first pouring nozzle and the second pouring nozzle in the second crystallizer, so that molten steel flowing out of the first pouring nozzle and the second pouring nozzle changes direction under the blocking and guiding of the outer surface of the flow stabilizer when flowing to the vicinity of the second liquid level of the first pouring nozzle, and the molten steel with changed direction flows through the protection slag layer, so that on one hand, molten steel areas on two sides of the flow stabilizer are driven to be smooth and active, the temperature of the molten steel is facilitated to be uniform, and on the other hand, the problem of slag rolling or liquid level fluctuation caused by mutual interference of the molten steel between the first pouring nozzle and the second pouring nozzle is avoided.
2. The crystallizer liquid level flow stabilizer provided by the utility model has the advantages that the part of the flow stabilizer below the liquid level of molten steel in the second crystallizer is conical and the conical tip is downward, so that the direction of molten steel flowing out of the first pouring nozzle and the second pouring nozzle is changed under the blocking and guiding of the outer surface of the flow stabilizer when the molten steel flows to the vicinity of the liquid level of the second crystallizer, the molten steel with the changed direction flows through the protective slag layer, on one hand, the molten steel areas on the two sides of the flow stabilizer are driven to be smooth and active, the temperature of the molten steel is facilitated to be uniform, and on the other hand, slag rolling or liquid level fluctuation caused by mutual interference of the molten steel between the first pouring nozzle and the second pouring nozzle is avoided.
3. According to the crystallizer liquid level flow stabilizer provided by the utility model, the bottom end height of the first pouring nozzle and the bottom end height of the second pouring nozzle are smaller than the bottom end height of the flow stabilizer, so that molten steel flowing into the inner cavity of the second crystallizer from the first pouring nozzle and the second pouring nozzle can flow mutually below the flow stabilizer, the integral liquid level is consistent, and the liquid level is convenient to control.
4. The width of the stabilizer is smaller than the distance between the first wide copper plate of the crystallizer and the second wide copper plate of the crystallizer, so that the stabilizer 13 can be inserted into the second crystallizer; the crystallizer wide-surface copper plate I and the crystallizer wide-surface copper plate II are not contacted with the current stabilizer, so that the current stabilizer is prevented from damaging a blank shell, and the surface quality of a casting blank and the safety production are prevented from being influenced.
Drawings
The present utility model will be described in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic illustration of a prior art single pouring nozzle;
FIG. 2 is a schematic illustration of a prior art dual pouring nozzle;
FIG. 3 is a front view of a casting of a crystallizer level stabilizer of the present utility model;
fig. 4 is a right side view of the structure at position a in fig. 3.
Reference numerals illustrate: 1. a tundish; 2. a water gap; 3. a crystallizer I; 4. casting blank; 5. a secondary cooling guide system; 6. a crystallizer narrow-face copper plate I; 7. a narrow-face copper plate II of the crystallizer; 8. crystallizer wide-surface copper plate I; 9. crystallizer wide-surface copper plate II; 10. pouring a first water gap; 11. pouring a second water gap; 12. protecting a slag layer; 13. a current stabilizer.
Detailed Description
The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model. The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention.
Example 1:
as shown in fig. 3 and 4, a crystallizer liquid level flow stabilizer comprises a crystallizer two, wherein the crystallizer two comprises a crystallizer narrow-side copper plate I6, a crystallizer narrow-side copper plate II 7, a crystallizer wide-side copper plate I8 and a crystallizer wide-side copper plate II 9, the crystallizer narrow-side copper plate I6, the crystallizer wide-side copper plate I8, the crystallizer narrow-side copper plate II 7 and the crystallizer wide-side copper plate II 9 are sequentially Zhou Xianglian rectangular, a pouring gate I10 and a pouring gate II 11 are arranged in the upper part of the crystallizer two at intervals from left to right, the pouring gate I10 and the pouring gate II 11 are vertically arranged, molten steel is injected into the crystallizer two through the pouring gate I10 and the pouring gate II 11, a protective slag layer 12 is added on the molten steel in the crystallizer two, a flow stabilizer 13 is inserted into the crystallizer two, and the flow stabilizer 13 is positioned between the pouring gate I10 and the pouring gate II 11.
According to the crystallizer liquid level flow stabilizer provided by the utility model, the flow stabilizer 13 is inserted between the first pouring nozzle 10 and the second pouring nozzle 11 in the second crystallizer, so that when molten steel flowing out of the first pouring nozzle 10 and the second pouring nozzle 11 flows near the liquid level of the second crystallizer, the direction of the molten steel is changed under the blocking and guiding of the outer surface of the flow stabilizer 13, and the molten steel with changed direction flows through the protective slag layer 12, so that on one hand, the molten steel areas on two sides of the flow stabilizer 13 are driven to be smooth and active, the temperature of the molten steel is facilitated to be uniform, and on the other hand, slag rolling or liquid level fluctuation caused by mutual interference of the molten steel between the first pouring nozzle 10 and the second pouring nozzle 11 is avoided.
Example 2:
on the basis of the embodiment 1, the part of the flow stabilizer 13 below the liquid level of molten steel in the second crystallizer is conical and the cone tip is downward.
The arrangement ensures that molten steel flowing out of the first pouring nozzle 10 and the second pouring nozzle 11 can well block and guide the molten steel to change direction outside the flow stabilizer 13 when flowing to the vicinity of the liquid level of the second crystallizer, so that the molten steel with changed direction flows downwards from the slag protecting layer 12, the molten steel areas on two sides of the flow stabilizer 13 are driven to be smooth and active, the temperature of the molten steel is facilitated to be uniform, and slag or liquid level fluctuation caused by mutual interference of the molten steel between the first pouring nozzle 10 and the second pouring nozzle 11 is avoided.
Preferably, the bottom end height of the first pouring nozzle 10 and the bottom end height of the second pouring nozzle 11 are smaller than the bottom end height of the flow stabilizer 13.
The molten steel flowing into the inner cavity of the crystallizer II from the pouring nozzle I10 and the pouring nozzle II 11 can flow mutually below the flow stabilizer 13, so that the integral liquid level is consistent, and the liquid level control is convenient.
Preferably, the width of the current stabilizer 13 is smaller than the distance between the first crystallizer wide copper plate 8 and the second crystallizer wide copper plate 9, and neither the first crystallizer wide copper plate 8 nor the second crystallizer wide copper plate 9 contacts the current stabilizer 13.
The width of the current stabilizer 13 is smaller than the distance between the crystallizer wide-surface copper plate I8 and the crystallizer wide-surface copper plate II 9, so that the current stabilizer 13 can be inserted into the crystallizer II; the crystallizer wide-surface copper plate I8 and the crystallizer wide-surface copper plate II 9 are not contacted with the current stabilizer 13, so that the current stabilizer 13 is prevented from damaging a blank shell, and the surface quality and the safety production of a casting blank are prevented from being influenced.
Preferably, the distance between the current stabilizer 13 and the first crystallizer wide copper plate 8 is equal to the distance between the current stabilizer 13 and the second crystallizer wide copper plate 9.
The molten steel temperature around the current stabilizer 13 is the same, and the blank forming effect is good.
Preferably, the bottom end of the current stabilizer 13 is an arc surface. The arc surface enables molten steel to stably flow through the bottom end of the flow stabilizer 13.
Preferably, the current stabilizer 13 is made of a high temperature resistant material.
The high-temperature resistant material ensures that the current stabilizer 13 is not deformed in the high-temperature molten steel; specifically, the existing materials are selected as the high-temperature resistant materials, and the use requirements are only met.
Preferably, the flow stabilizer 13 is located on the central axis between the first pouring nozzle 10 and the second pouring nozzle 11. The molten steel around the flow stabilizer 13 is led to a symmetrical form, which is helpful for the temperature of the molten steel to be uniform.
In the description of the present utility model, it should be understood that, if there are components distinguished by the numerals "a" and "b", such as: for convenience in explaining the background technology (prior art) and the technology of the present utility model, the first crystallizer and the second crystallizer have the same or different structures, and may be set according to circumstances, and other components distinguished by numerals have the meaning equivalent to that of the illustration of the crystallizer.
In the description of the present utility model, it should be understood that, if any, the terms "front," "interior," "right," and the like indicate an orientation or a positional relationship based on that shown in the drawings, rather than indicate or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus the terms describing the positional relationship in the drawings are for illustration only and are not to be construed as limiting the utility model.
The foregoing examples are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model, and all designs that are the same or similar to the present utility model are within the scope of the present utility model.
Claims (8)
1. The utility model provides a crystallizer liquid level flow stabilizer, including the crystallizer two, crystallizer two include crystallizer narrow face copper (6), crystallizer narrow face copper two (7), crystallizer wide face copper (8) and crystallizer wide face copper two (9), crystallizer narrow face copper (6), crystallizer wide face copper (8), crystallizer narrow face copper two (7) and crystallizer wide face copper two (9) are the cuboid in proper order Zhou Xianglian, be connected with pouring gate one (10) and pouring gate two (11) from left to right interval in the upper portion of crystallizer two and pouring gate two (11) all vertically set up, pour into molten steel into in to the crystallizer two through pouring gate one (10) and pouring gate two (11), add above the molten steel in the crystallizer two and protect slag layer (12), its characterized in that: a current stabilizer (13) is inserted in the second crystallizer, and the current stabilizer (13) is positioned between the first pouring nozzle (10) and the second pouring nozzle (11).
2. The crystallizer level flow stabilizer of claim 1, wherein: the part of the current stabilizer (13) below the liquid level of molten steel in the second crystallizer is conical and the cone tip is downward.
3. The crystallizer level flow stabilizer of claim 2, wherein: the bottom end height of the first pouring nozzle (10) and the bottom end height of the second pouring nozzle (11) are smaller than the bottom end height of the flow stabilizer (13).
4. The crystallizer level flow stabilizer of claim 1, wherein: the width of the current stabilizer (13) is smaller than the distance between the crystallizer wide copper plate I (8) and the crystallizer wide copper plate II (9), and the crystallizer wide copper plate I (8) and the crystallizer wide copper plate II (9) are not contacted with the current stabilizer (13).
5. The crystallizer liquid level flow stabilizer of claim 4, wherein: the distance between the current stabilizer (13) and the crystallizer wide-surface copper plate I (8) is equal to the distance between the current stabilizer (13) and the crystallizer wide-surface copper plate II (9).
6. The crystallizer level flow stabilizer of claim 2, wherein: the bottom end of the current stabilizer (13) is an arc surface.
7. The crystallizer level flow stabilizer of claim 1, wherein: the current stabilizer (13) is made of high-temperature resistant materials.
8. The crystallizer level flow stabilizer of claim 1, wherein: the flow stabilizer (13) is positioned on the central axis between the first pouring nozzle (10) and the second pouring nozzle (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321154821.1U CN219766735U (en) | 2023-05-12 | 2023-05-12 | Crystallizer liquid level flow stabilizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321154821.1U CN219766735U (en) | 2023-05-12 | 2023-05-12 | Crystallizer liquid level flow stabilizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219766735U true CN219766735U (en) | 2023-09-29 |
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ID=88131554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321154821.1U Active CN219766735U (en) | 2023-05-12 | 2023-05-12 | Crystallizer liquid level flow stabilizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219766735U (en) |
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2023
- 2023-05-12 CN CN202321154821.1U patent/CN219766735U/en active Active
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