CN202155493U - Cooling structure for wide-surface copper plate of crystallizer of continuous slab casting machine - Google Patents
Cooling structure for wide-surface copper plate of crystallizer of continuous slab casting machine Download PDFInfo
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- CN202155493U CN202155493U CN 201120240263 CN201120240263U CN202155493U CN 202155493 U CN202155493 U CN 202155493U CN 201120240263 CN201120240263 CN 201120240263 CN 201120240263 U CN201120240263 U CN 201120240263U CN 202155493 U CN202155493 U CN 202155493U
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Abstract
A cooling structure for a wide-surface copper plate of a crystallizer of a continuous slab casting machine is used for solving problems that an existing cooling structure of a wide-surface copper plate of a crystallizer is unreasonable in structure, accordingly the wide-surface copper plate and a casting blank cannot be cooled uniformly, severe cracking of the copper plate is easily caused, the service life of the copper plate is short, the quality of the casting blank is defective and the like. The cooling structure comprises the wide-surface copper plate, cooling water channels are arranged on the wide-surface copper plate and are unevenly distributed after improvement, the pitch between each two adjacent cooling water channels in an upper backflow area with active molten steel ranges from 16 millimeters to 21 millimeters, and the pitch between each two adjacent cooling water channels in other portions ranges from 17 millimeters to 23 millimeters. The cooling water channels of the wide-surface copper plate of the crystallizer are optimized, diameters of the cooling water channels are reduced, the number of the cooling water channels is increased, the cooling water channels are reasonably distributed according to the temperature distribution condition of the molten steel, cooling intensity of a wide surface of the crystallizer is effectively enhanced, the temperature distribution condition of the wide surface of the crystallizer is improved, temperature difference of the surface of the copper plate of the crystallizer is reduced, and the quality of a casting blank is enhanced.
Description
Technical field
The utility model relates to wide copper coin cooling structure of a kind of thin-slab caster crystallizer, belongs to the metallurgical continuous casting technical field.
Background technology
Continuous casting steel machine is the technology that the molten steel continuously cooling and freezing is become strand, and crystallizer is to be the core component of strand with the molten steel crystallization in the conticaster.The heat of molten steel is mainly taken away through being arranged in the copper plate of crystallizer cooling water of cooling water channel, and crystallization is a strand.The thin-slab caster crystallizer adopts combining form usually, and is as shown in Figure 2: be made up of two wide copper coins 2 and two narrow copper plates 1.At present, the cooling water channel of wide copper coin of thin-slab caster crystallizer is that 76, cooling water channel diameter are 14mm, is evenly distributed, and whole wide cooling degree is identical in the pour steel process.The distribution of the liquid steel temperature of crystallizer entire working surface horizontal direction is different in actual production process; Temperature is lower near submersed nozzle; And the recirculating zone molten steel is active and temperature is higher on submersed nozzle both sides tappings hole; The uneven distribution of whole wide copper plate temperature causes copper plate of crystallizer and coating stress skewness; Copper coin and coating life-span reduce, and the temperature drop that causes whole wide copper coin evenly causes strand non-uniform temperature in the crystallizer because cooling water channel evenly distributes simultaneously, and casting billet surface is easy to generate mass defects such as crackle in crystallizer.
The utility model content
The utility model is used to solve the defective of above-mentioned prior art and a kind of strand cools off form in crystallizer wide copper coin cooling structure of a kind of thin-slab caster crystallizer that meet is provided.
The alleged problem of the utility model is solved by following technical scheme:
Wide copper coin cooling structure of a kind of thin-slab caster crystallizer; Comprise wide copper coin; On wide the copper coin cooling water channel is set, special feature is: said cooling water channel is non-uniform Distribution, wherein; Molten steel active on recirculation zone cooling water channel spacing be the 16-21 millimeter, other position cooling water channel spacing is the 17-23 millimeter.
Wide copper coin cooling structure of above-mentioned thin-slab caster crystallizer, the said backflow area L that goes up is the zone along wide copper coin center line symmetry, wide copper coin center line 370-670mm of distance.
Wide copper coin cooling structure of above-mentioned thin-slab caster crystallizer is characterized in that: 11 millimeters of said cooling water channel diameters, totally 104.
The utility model is unreasonable to wide copper coin cooling structure of present crystallizer for continuous casting of thin slabs; Cause wide copper coin and strand temperature inhomogeneous cooling, be prone to cause the copper coin severe crack, problems such as the life-span is low, slab quality defective improve; Wide copper coin cooling water channel of crystallizer carried out optimal design, and its cooling water channel diameter reduces, quantity increases, and rationally distributes according to the liquid steel temperature distribution situation; Effectively improve wide intensity of cooling of crystallizer; Improve the wide surface temperature of crystallizer and distribute, it is poor to reduce the copper plate of crystallizer surface temperature, improves slab quality.The design of the utility model meets the cooling form of strand in crystallizer, guarantees the slab thickness when strand goes out crystallizer, helps improving the service life of cc billet surface quality and wide copper coin of crystallizer.
Description of drawings
Fig. 1 is the utility model sketch map;
Fig. 2 is a thin-slab caster crystallizer sketch map.
Label is represented as follows in the accompanying drawing: 1. crystallizer narrow copper plate; 2. wide copper coin of crystallizer; 3. cooling water channel; 4. submersed nozzle.
The specific embodiment
Referring to Fig. 1, Fig. 2 the utility model the cooling structure of sheet blank continuous casting with wide copper coin of crystallizer improved; The cooling water channel 3 of wide copper coin 2 of crystallizer vertically is non-uniform Distribution along wide of crystallizer; Molten steel active on backflow L zone cooling water channel spacing a be the 16-21 millimeter, near the middle submersed nozzle 4 and to go up recirculating zone side cooling water channel spacing b be the 17-23 millimeter.Last backflow area L is along wide copper coin center line symmetry, rises Zi wide copper coin center line 370mm of distance, ends to the zone apart from wide copper coin center line 670mm.11 millimeters of the utility model cooling water channel diameters are provided with 104 altogether, and 104 cooling water channels are symmetrical distribution along the crystallizer center line, and the cooling water channel center line equidistantly distributes apart from working face.The utility model is because of wide copper coin cooling water channel of crystallizer non-uniform Distribution; It is intensive that molten steel enlivens the high L zone cooling water channel of temperature; The regional cooling water channel that the inactive temperature of molten steel is low is loose, helps wide copper plate temperature of whole crystallizer and is evenly distributed, and casting blank shell is evenly grown in the crystallizer; Eliminate crystallizer and evenly cool off the slab thickness inequality that causes, thereby produce mass defects such as strand crackle, mashed limit.
Claims (3)
1. wide copper coin cooling structure of a thin-slab caster crystallizer; Comprise wide copper coin (2); On wide the copper coin cooling water channel is set, it is characterized in that: said cooling water channel (3) is non-uniform Distribution, wherein; Molten steel active on recirculation zone cooling water channel spacing be the 16-21 millimeter, other position cooling water channel spacing is the 17-23 millimeter.
2. wide copper coin cooling structure of thin-slab caster crystallizer according to claim 1 is characterized in that: the said backflow area L that goes up is the zone along wide copper coin center line symmetry, wide copper coin center line 370-670mm of distance.
3. according to wide copper coin cooling structure of the said thin-slab caster crystallizer of claim 2, it is characterized in that: 11 millimeters of said cooling water channel diameters, totally 104.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120240263 CN202155493U (en) | 2011-07-08 | 2011-07-08 | Cooling structure for wide-surface copper plate of crystallizer of continuous slab casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120240263 CN202155493U (en) | 2011-07-08 | 2011-07-08 | Cooling structure for wide-surface copper plate of crystallizer of continuous slab casting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202155493U true CN202155493U (en) | 2012-03-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120240263 Expired - Lifetime CN202155493U (en) | 2011-07-08 | 2011-07-08 | Cooling structure for wide-surface copper plate of crystallizer of continuous slab casting machine |
Country Status (1)
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| CN (1) | CN202155493U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106670409A (en) * | 2017-03-10 | 2017-05-17 | 西峡龙成特种材料有限公司 | Crystallizer for continuous casting |
| CN106670410A (en) * | 2017-03-10 | 2017-05-17 | 西峡龙成特种材料有限公司 | Crystallizer for preventing various defects of continuous cast billet |
| CN106825465A (en) * | 2017-03-10 | 2017-06-13 | 西峡龙成特种材料有限公司 | A kind of crystallizer for preventing slab defects |
| CN109396409A (en) * | 2018-11-12 | 2019-03-01 | 莱芜钢铁集团银山型钢有限公司 | A kind of single-point unequal protection casting method producing ultra-thin big specification Aluminum steel Hot Metal in Beam Blank |
| CN110039015A (en) * | 2019-05-15 | 2019-07-23 | 东北大学 | Car body aluminum alloy extrusion section bar ingot casting casting crystallizer and its casting method |
-
2011
- 2011-07-08 CN CN 201120240263 patent/CN202155493U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106670409A (en) * | 2017-03-10 | 2017-05-17 | 西峡龙成特种材料有限公司 | Crystallizer for continuous casting |
| CN106670410A (en) * | 2017-03-10 | 2017-05-17 | 西峡龙成特种材料有限公司 | Crystallizer for preventing various defects of continuous cast billet |
| CN106825465A (en) * | 2017-03-10 | 2017-06-13 | 西峡龙成特种材料有限公司 | A kind of crystallizer for preventing slab defects |
| CN106825465B (en) * | 2017-03-10 | 2019-02-22 | 西峡龙成特种材料有限公司 | A kind of crystallizer preventing slab defects |
| CN106670409B (en) * | 2017-03-10 | 2019-02-22 | 西峡龙成特种材料有限公司 | A kind of continuous cast mold |
| CN109396409A (en) * | 2018-11-12 | 2019-03-01 | 莱芜钢铁集团银山型钢有限公司 | A kind of single-point unequal protection casting method producing ultra-thin big specification Aluminum steel Hot Metal in Beam Blank |
| CN109396409B (en) * | 2018-11-12 | 2020-07-31 | 莱芜钢铁集团银山型钢有限公司 | Single-point non-equilibrium protection casting method for producing ultrathin large-size aluminum-containing steel special-shaped blank |
| CN110039015A (en) * | 2019-05-15 | 2019-07-23 | 东北大学 | Car body aluminum alloy extrusion section bar ingot casting casting crystallizer and its casting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 063016 Binhe Road, Hebei, Tangshan City, No. 9 Patentee after: River steel Limited by Share Ltd Tangshan branch Address before: 063016 Binhe Road, Hebei, Tangshan City, No. 9 Patentee before: Hebei Steel Co., Ltd., Tangshan Branch |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120307 |