CN110842162A - Crystallizer for large-size horizontal continuous casting of red copper ingot - Google Patents
Crystallizer for large-size horizontal continuous casting of red copper ingot Download PDFInfo
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- CN110842162A CN110842162A CN201911279048.XA CN201911279048A CN110842162A CN 110842162 A CN110842162 A CN 110842162A CN 201911279048 A CN201911279048 A CN 201911279048A CN 110842162 A CN110842162 A CN 110842162A
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- Prior art keywords
- cavity
- sleeve
- crystallizer
- continuous casting
- red copper
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 42
- 239000010949 copper Substances 0.000 title claims abstract description 42
- 238000009749 continuous casting Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 60
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 26
- 239000010959 steel Substances 0.000 claims abstract description 26
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 26
- 229910002804 graphite Inorganic materials 0.000 claims description 26
- 239000010439 graphite Substances 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 10
- 239000007921 spray Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 abstract description 23
- 238000000034 method Methods 0.000 abstract description 12
- 238000005266 casting Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 229910000881 Cu alloy Inorganic materials 0.000 abstract description 5
- 238000005507 spraying Methods 0.000 description 19
- 238000002425 crystallisation Methods 0.000 description 9
- 230000008025 crystallization Effects 0.000 description 9
- 239000000498 cooling water Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
- B22D11/004—Copper alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/055—Cooling the moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/059—Mould materials or platings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The invention belongs to the technical field of casting equipment, and relates to a crystallizer for large-size horizontal continuous casting of a red copper ingot, which comprises a steel outer sleeve, wherein an inner sleeve is coaxially arranged in an inner hole of the steel outer sleeve, and the outer wall of the inner sleeve and the inner wall of the steel outer sleeve form a closed spiral cavity; the cavity comprises a first cavity and a second cavity which are positioned on two sides of the upper part, and a third cavity which is positioned on the lower parts of the first cavity and the second cavity, wherein the axial end surfaces of the first cavity and the second cavity are respectively provided with an upper water inlet, and the axial other end surfaces of the first cavity and the second cavity are respectively provided with an upper water outlet. The crystallizer for horizontal continuous casting can effectively solve the technical problems that the crystallizer cannot independently control the upper part and the lower part of the crystallizer, the cooling temperature of a spiral cooling copper sleeve in the crystallizer is uneven, the heat exchange effect is poor, cracks are generated and the like in the traditional horizontal continuous casting process of red copper and copper alloy.
Description
Technical Field
The invention belongs to the technical field of casting equipment, and relates to a crystallizer for large-size horizontal continuous casting of a red copper ingot.
Background
At present, in the technical process of horizontally and continuously casting a 365 mm-diameter large-outer-diameter copper alloy red copper ingot with a cylinder diameter of 365 mm and a copper alloy, the crystallization and cooling procedures of an adopted crystallizer are cooling crystallization and are simultaneously completed, and because of gravity, the 365 mm-diameter large-outer-diameter copper ingot has low lower surface temperature and high cooling strength during horizontal continuous casting. The upper surface temperature is high, the cooling intensity is small, and casting cracks are easy to generate when the 365 mm diameter large outer diameter red copper ingot is horizontally and continuously cast due to uneven cooling temperature. Meanwhile, the flow direction and the flow of the internal water cannot be effectively controlled, so that the cooling temperature of the spiral cooling copper sleeve in the crystallizer is uneven, and the product quality is influenced. The contact area of the cooling surface and cooling water is small, and the heat exchange effect is poor.
Disclosure of Invention
The crystallizer for horizontal continuous casting can effectively solve the technical problems that the crystallizer cannot independently control the upper part and the lower part of the crystallizer in the traditional horizontal continuous casting process of red copper and copper alloy, the cooling temperature of a spiral cooling copper sleeve in the crystallizer is uneven, the heat exchange effect is poor, cracks are caused and the like.
According to the technical scheme of the invention: a crystallizer for large-size horizontal continuous casting of red copper ingots is characterized in that: the device comprises a steel outer sleeve, wherein an inner sleeve is coaxially arranged in an inner hole of the steel outer sleeve, and the outer wall of the inner sleeve and the inner wall of the steel outer sleeve form a closed spiral cavity;
the cavities comprise a first cavity and a second cavity which are positioned on two sides of the upper part, and a third cavity which is positioned on the lower parts of the first cavity and the second cavity, wherein the axial end surfaces of the first cavity and the second cavity are respectively provided with an upper water inlet, the axial other end surfaces of the first cavity and the second cavity are respectively provided with an upper water outlet, the axial two end surfaces of the third cavity are respectively provided with a lower water inlet and a lower water outlet, and spiral flow passages are respectively arranged in the first cavity, the second cavity and the third cavity;
the inner hole of the inner sleeve is provided with a graphite sleeve, one end of the graphite sleeve is a liquid inlet opened on the end face, the other end of the graphite sleeve is a copper ingot outlet end, the copper ingot outlet end is provided with a water spraying flange, the outer ring of the water spraying flange is provided with an inclined runner, the steel outer sleeve is provided with a lower water spraying water inlet, the lower water spraying water inlet is communicated with the water spraying flange, the inner sleeve and the axial end of the graphite sleeve are both abutted against the water spraying flange, and the axial other end of the graphite sleeve extends out.
As a further improvement of the invention, one axial end of the inner sleeve and the other axial end of the steel outer sleeve are sealed by a first sealing ring, and the other axial end of the inner sleeve and the steel outer sleeve are sealed by a second sealing ring.
As a further improvement of the invention, a through hole is arranged on the flange plate at one end of the steel outer sleeve, which is far away from the lower water spraying inlet.
As a further improvement of the invention, the inner wall of the steel outer sleeve is provided with a radially extending annular plate, and the end surface of the spiral flow channel arranged on the outer surface of the inner sleeve is positioned by the annular plate.
As a further improvement of the invention, the circumferential surface of the graphite sleeve close to the side of the end surface provided with the liquid inlet is provided with a through hole.
The invention has the technical effects that: 1. the crystallization procedure and the cooling procedure can be independently cooled up and down according to the casting temperature:
2. the quality of the ingot casting crystallization finished product is good;
3. the cooling and heat exchange effect is good, and the cooling speed is high;
4. the 365 mm large-outer-diameter red copper ingot or cast ingot has small friction with the crystallizer;
5. the surface quality of the large-outer-diameter red copper ingot product with the diameter of 365 mm is high;
6. the end face casting crystal grains of the 365 mm large-outer-diameter red copper ingot are finer than those of semi-continuous casting.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic end view of the inner sleeve.
Fig. 3 is a top view of the first and second cavities.
Fig. 4 is a bottom view of the third cavity.
Fig. 5 is a schematic cross-sectional view of the inner sleeve.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
In the drawings 1-5, the water spraying device comprises a water spraying flange 1, an inclined flow channel 1-1, a first sealing ring 2, a steel outer sleeve 3, an annular plate 3-1, a through hole 4, a second sealing ring 5, an inner sleeve 6, a first cavity 6-1, a second cavity 6-2, a third cavity 6-3, a spiral flow channel 6-4, a graphite sleeve 7, an upper water outlet 8, an upper water inlet 9, a lower water outlet 10, a lower water inlet 11, a lower water spraying water inlet 12 and the like.
As shown in fig. 1 to 5, the invention relates to a large-size crystallizer for horizontal continuous casting of a red copper ingot, which comprises a steel outer sleeve 3, wherein an inner sleeve 6 is coaxially arranged in an inner hole of the steel outer sleeve 3, and the outer wall of the inner sleeve 6 and the inner wall of the steel outer sleeve 3 form a closed spiral cavity; the cavity comprises a first cavity 6-1 and a second cavity 6-2 which are positioned at two sides of the upper part, and a third cavity 6-3 which is positioned at the lower parts of the first cavity 6-1 and the second cavity 6-2, wherein the first cavity 6-1, the second cavity 6-2 and the third cavity 6-3 are three independent cavities.
The axial end surfaces of the first cavity 6-1 and the second cavity 6-2 are respectively provided with an upper water inlet 9, the axial other end surfaces of the first cavity 6-1 and the second cavity 6-2 are respectively provided with an upper water outlet 8, the axial two end surfaces of the third cavity 6-3 are respectively provided with a lower water inlet 11 and a lower water outlet 10, and spiral flow passages 6-4 are respectively arranged in the first cavity 6-1, the second cavity 6-2 and the third cavity 6-3; the inner hole of the inner sleeve 6 is provided with a graphite sleeve 7, one end of the graphite sleeve 7 is a liquid inlet opened on the end face, the other end of the graphite sleeve 7 is a copper ingot outlet end, the copper ingot outlet end is provided with a water spraying flange 1, the outer ring of the water spraying flange 1 is provided with an inclined runner 1-1, the steel outer sleeve 3 is provided with a lower water spraying water inlet 12, the lower water spraying water inlet 12 is communicated with the water spraying flange 1, the inner sleeve 6 and one axial end of the graphite sleeve 7 are both abutted against the water spraying flange 1, and the other axial end of the graphite sleeve 7 extends. The graphite sleeve 7 is provided with a through hole on the circumferential surface of one side close to the end surface of the liquid inlet.
One axial ends of the inner sleeve 6 and the steel outer sleeve 3 are sealed through a first sealing ring 2, and the other axial ends are sealed through a second sealing ring 5. When the first sealing ring 2 and the second sealing ring 5 work, explosion accidents caused by the fact that water in the crystallizer enters copper liquid can be effectively prevented
The flange plate at one end of the steel outer sleeve 3 far away from the lower water spray inlet 12 is provided with a through hole 4, the inner wall of the steel outer sleeve 3 is provided with a ring plate 3-1 extending radially, and the end face of a spiral flow channel 6-4 arranged on the outer surface of the inner sleeve 6 is positioned through the ring plate 3-1.
As shown in figure 2, when the horizontal continuous casting device works, the first cavity 6-1 independently cools the left side of the upper part, the second cavity 6-2 independently cools the right side of the upper part, the third cavity 6-3 independently cools the left side and the right side of the lower part, a plurality of spiral flow channels 6-4 are formed in the inner sleeve 6, cooling water is driven to flow in the inner sleeve 6 according to the spiral flow channels 6-4, the cooling in the whole horizontal continuous casting process is controllable, and it can be understood that in order to ensure the tight fit between the inner sleeve 6 and the graphite sleeve 7, the inner wall of the inner sleeve 6 is in interference fit with the graphite sleeve 7.
In the casting production process of horizontal continuous casting red copper and copper alloy, liquid metal firstly enters a graphite sleeve 7 at the innermost part of the crystallizer for large-specification horizontal continuous casting of the red copper ingot and is divided into a first cavity 6-1, a second cavity 6-2 and a third cavity 6-3 through an inner sleeve 6, the first cavity 6-1 independently cools the left side of the upper part, the second cavity 6-2 independently cools the right side of the upper part, the third cavity 6-3 independently cools the left side and the right side of the lower part, a plurality of spiral flow channels 6-4 are formed in the inner sleeve 6, cooling water is driven to flow in the inner sleeve 6 according to the plurality of spiral flow channels 6-4, the cooling water enters the spiral flow channels 6-4 in the inner sleeve 6 of the crystallizer from an upper water inlet 9 of the crystallizer, and water flows forwards in the spiral direction in the spiral flow channels 6-4, and finally flows out through the end 8 of the upper water outlet.
The spiral inner sleeve 6 forces the cooling water to be divided into a first cavity 6-1, a second cavity 6-2 and a third cavity 6-3 to form spiral water flow, so that the temperature conduction is accelerated, the uniform cooling temperature in the inner sleeve 6 is favorably kept, meanwhile, the inner sleeve 6 can also play a role of a radiating fin, the heat exchange surface is enlarged, the heat exchange efficiency is improved, and the crystallization speed is accelerated.
After the crystallization process is finished, the formed red copper ingot or ingot with the diameter of 365 mm and the large outer diameter enters the tail end part of the crystallizer, the other path of cooling water enters the lower independent cavity of the crystallizer through the lower water spraying water inlet 12 and is spirally sprayed out from the water spraying port on the water spraying flange 1 at the tail part of the crystallizer, and the red copper ingot or ingot with the diameter of 365 mm and the large outer diameter is directly subjected to secondary water cooling treatment.
The graphite sleeve 7 is embedded in the inner wall of the inner sleeve 6 in an installing mode, the graphite sleeve 7 is a poor heat conductor, the graphite sleeve 7 can improve the crystallization performance of a red copper ingot or an ingot with the diameter of 365 mm and the large outer diameter, and the method can be suitable for producing the red copper ingot with other large size specifications during specific production of products.
The graphite has the characteristic of low friction coefficient, the graphite sleeve 7 can reduce the friction between the 365 mm-diameter large-outer-diameter red copper ingot or cast ingot and the crystallizer, and improve the surface quality of the 365 mm-diameter large-outer-diameter red copper ingot or cast ingot.
The thermometer and the flowmeter are arranged outside the crystallizer, so that the cooling effect of the upper part and the lower part of the crystallizer can be independently adjusted. Therefore, the crystallizer for large-size horizontal continuous casting of the red copper ingot can independently control the temperature reduction of the crystallization procedure and the cooling procedure so as to meet the crystallization and cooling process requirements of the red copper ingot or ingot with the diameter of 365 mm and the large outer diameter. Meanwhile, the crystallizer for large-specification horizontal continuous casting of the red copper ingot also has the advantages of good cooling and heat exchange effects, high cooling speed, small friction between the 365 mm-diameter large-outer-diameter red copper ingot or cast ingot and the crystallizer, high surface quality of the 365 mm-diameter large-outer-diameter red copper ingot and the like.
Claims (5)
1. A crystallizer for large-size horizontal continuous casting of red copper ingots is characterized in that: the device comprises a steel outer sleeve (3), wherein an inner sleeve (6) is coaxially arranged in an inner hole of the steel outer sleeve (3), and the outer wall of the inner sleeve (6) and the inner wall of the steel outer sleeve (3) form a closed spiral cavity;
the cavity comprises a first cavity (6-1) and a second cavity (6-2) which are positioned at two sides of the upper part, and a third cavity (6-3) which is positioned at the lower parts of the first cavity (6-1) and the second cavity (6-2), the axial end surfaces of the first cavity (6-1) and the second cavity (6-2) are respectively provided with an upper water inlet (9), the axial other end surfaces of the first cavity (6-1) and the second cavity (6-2) are respectively provided with an upper water outlet (8), the axial two end surfaces of the third cavity (6-3) are respectively provided with a lower water inlet (11) and a lower water outlet (10), spiral flow channels (6-4) are respectively arranged in the first cavity (6-1), the second cavity (6-2) and the third cavity (6-3);
the hole of endotheca (6) sets up graphite cover (7), and the one end of graphite cover (7) is opened the inlet for the terminal surface, and the other end is the copper ingot exit end to set up water spray flange (1) at the copper ingot exit end, water spray flange (1) outer lane sets up slope runner (1-1), sets up lower part water spray water inlet (12) on steel overcoat (3), lower part water spray water inlet (12) intercommunication water spray flange (1), and endotheca (6) all support to lean on water spray flange (1) with the axial one end of graphite cover (7), stretch out in the axial other end follow endotheca (6) of graphite cover (7).
2. The large-size horizontal continuous casting crystallizer for the red copper ingot as claimed in claim 1, wherein: the inner sleeve (6) and the steel outer sleeve (3) are sealed at one axial end through a first sealing ring (2) and the other axial end through a second sealing ring (5).
3. The large-size horizontal continuous casting crystallizer for the red copper ingot as claimed in claim 1, wherein: and a through hole (4) is formed in the flange plate at one end, far away from the lower water spray inlet (12), of the steel outer sleeve (3).
4. The large-size horizontal continuous casting crystallizer for the red copper ingot as claimed in claim 1, wherein: the inner wall of the steel outer sleeve (3) is provided with a radially extending annular plate (3-1), and the end face of a spiral flow channel (6-4) arranged on the outer surface of the inner sleeve (6) is positioned through the annular plate (3-1).
5. The large-size horizontal continuous casting crystallizer for the red copper ingot as claimed in claim 1, wherein: the graphite sleeve (7) is provided with a through hole on the circumferential surface of one side close to the end face of the liquid inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911279048.XA CN110842162A (en) | 2019-12-13 | 2019-12-13 | Crystallizer for large-size horizontal continuous casting of red copper ingot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911279048.XA CN110842162A (en) | 2019-12-13 | 2019-12-13 | Crystallizer for large-size horizontal continuous casting of red copper ingot |
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| Publication Number | Publication Date |
|---|---|
| CN110842162A true CN110842162A (en) | 2020-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911279048.XA Pending CN110842162A (en) | 2019-12-13 | 2019-12-13 | Crystallizer for large-size horizontal continuous casting of red copper ingot |
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| CN (1) | CN110842162A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111250669A (en) * | 2020-03-24 | 2020-06-09 | 大连理工大学 | Mold for copper alloy electromagnetic continuous casting |
| CN114054693A (en) * | 2020-10-09 | 2022-02-18 | 汕头华兴冶金设备股份有限公司 | Crystallizer for horizontal continuous casting of non-ferrous alloy |
| CN115319043A (en) * | 2022-10-18 | 2022-11-11 | 凯美龙精密铜板带（河南）有限公司 | Horizontal continuous casting slab casting device of CuNiSi alloy |
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| CN201220269Y (en) * | 2008-07-02 | 2009-04-15 | 成都豪能科技股份有限公司 | Crystallizer for casting |
| CN102527960A (en) * | 2012-02-15 | 2012-07-04 | 曲沃县民政福利企业有限公司 | Novel crystallizer for horizontal continuous casting |
| CN206794692U (en) * | 2017-06-23 | 2017-12-26 | 宁波康强微电子技术有限公司 | A kind of crystallizer for being used to prepare the horizontal caster of brass wire |
| CN209578082U (en) * | 2018-12-31 | 2019-11-05 | 青岛宏泰铜业有限公司 | A kind of horizontal continuous casting crystallizer for forming copper ingot |
| CN211218589U (en) * | 2019-12-13 | 2020-08-11 | 无锡市锡山变压器电炉厂 | Crystallizer for large-size horizontal continuous casting of red copper ingot |
-
2019
- 2019-12-13 CN CN201911279048.XA patent/CN110842162A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201220269Y (en) * | 2008-07-02 | 2009-04-15 | 成都豪能科技股份有限公司 | Crystallizer for casting |
| CN102527960A (en) * | 2012-02-15 | 2012-07-04 | 曲沃县民政福利企业有限公司 | Novel crystallizer for horizontal continuous casting |
| CN206794692U (en) * | 2017-06-23 | 2017-12-26 | 宁波康强微电子技术有限公司 | A kind of crystallizer for being used to prepare the horizontal caster of brass wire |
| CN209578082U (en) * | 2018-12-31 | 2019-11-05 | 青岛宏泰铜业有限公司 | A kind of horizontal continuous casting crystallizer for forming copper ingot |
| CN211218589U (en) * | 2019-12-13 | 2020-08-11 | 无锡市锡山变压器电炉厂 | Crystallizer for large-size horizontal continuous casting of red copper ingot |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111250669A (en) * | 2020-03-24 | 2020-06-09 | 大连理工大学 | Mold for copper alloy electromagnetic continuous casting |
| CN114054693A (en) * | 2020-10-09 | 2022-02-18 | 汕头华兴冶金设备股份有限公司 | Crystallizer for horizontal continuous casting of non-ferrous alloy |
| CN115319043A (en) * | 2022-10-18 | 2022-11-11 | 凯美龙精密铜板带（河南）有限公司 | Horizontal continuous casting slab casting device of CuNiSi alloy |
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