CN111482565A - Compact multi-section small-sized cast rod continuous casting crystallizer system - Google Patents
Compact multi-section small-sized cast rod continuous casting crystallizer system Download PDFInfo
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- CN111482565A CN111482565A CN202010316691.1A CN202010316691A CN111482565A CN 111482565 A CN111482565 A CN 111482565A CN 202010316691 A CN202010316691 A CN 202010316691A CN 111482565 A CN111482565 A CN 111482565A
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- 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
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- 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
- B22D11/16—Controlling or regulating processes or operations
- B22D11/22—Controlling or regulating processes or operations for cooling cast stock or mould
- B22D11/225—Controlling or regulating processes or operations for cooling cast stock or mould for secondary cooling
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Abstract
The invention belongs to the technical field of small-sized cast rod continuous casting, and particularly relates to a compact multi-section small-sized cast rod continuous casting crystallizer system which is suitable for a vertical continuous casting system, wherein an upper-section cooling structure of the crystallizer system takes primary crystallization as a target, and effectively isolates cooling water before and after heat exchange through a lower-layer water inlet cavity, an upper-layer water outlet cavity and a water cavity gap and an annular partition plate, so that the uniform and rapid cooling solidification of circumferential molten metal is ensured, and meanwhile, the polished graphite column type inner wall is matched to play good lubricating and protecting roles on the surface of a casting blank; the lower section cooling structure with secondary cooling as a target gasifies and atomizes cooling water through the outer ring water cavity, the inner ring water cavity, the water spraying unit and the adjusting device, realizes the conversion of three cooling states of water, gas and fog, further cools a cast rod in the upper cooling section structure, can quickly solidify molten metal, reduces the coarsening of cast crystal grains, improves the blank drawing speed, and avoids the burning loss defect caused by excessive accumulation of the molten metal in a crystallizer system.
Description
Technical Field
The invention belongs to the technical field of small-sized cast rod continuous casting, and particularly relates to a compact multi-section small-sized cast rod continuous casting crystallizer system suitable for all alloy casting blank continuous casting processes.
Background
Cooling system is mostly a segmentation cooling in traditional crystallizer, comprises a water inlet, a delivery port and water-cooling copper sheathing promptly, spatters the water-cooling copper sheathing through the water intake nozzle with the cooling water and cools off, owing to can only carry out the heat exchange of local position, consequently has the not enough and uneven defect of cooling intensity of cooling, the phenomenon of mixcrystal appears easily. In addition, for a small-section casting bar, the cooling shrinkage of a casting blank is remarkable, mainly because in the cooling crystallization process, the contact surface of molten metal and the graphite column wall has the largest supercooling degree, the molten metal is preferentially and directionally solidified to form an outer blank shell, the blank shell is solidified to shrink, so that the blank shell is separated from the graphite column wall to form an inert gas film layer, and the blank shell is isolated from the graphite column wall.
Disclosure of Invention
The present invention discloses a compact multi-segment small cast bar continuous casting crystallizer system to solve any of the above and other potential problems of the prior art.
In order to solve the problems, the technical scheme of the invention is as follows: a compact multi-section small-sized cast rod continuous casting crystallizer system comprises an induction heating furnace, a graphite column and a crystallizer, wherein the crystallizer comprises an upper cooling section structure and a lower cooling section structure;
the upper cooling section structure is used for carrying out primary cooling on the rod-shaped casting blank to realize primary crystallization of the rod-shaped casting blank;
the lower cooling section structure is used for cooling the bar-shaped casting blank after crystallization again, cooling and hardening the blank shell and preventing the casting blank from breaking;
the inlet of the upper cooling section structure is connected with the induction heating furnace, the graphite column type having the functions of lubricating and protecting the surface of the casting blank is arranged inside the upper cooling section structure, and the lower cooling section structure is fixedly connected with the bottom of the upper cooling section structure.
Further, the upper cooling section structure comprises an annular first outer shell, an annular flange plate, an annular first inner sleeve, an annular bottom plate and an annular partition plate;
the annular first inner sleeve is arranged inside the annular first shell, the annular first inner sleeve is fixedly connected with the annular flange plate at the top of the annular first shell, the annular bottom plate is arranged at the bottom of the annular first shell, a cavity among the annular flange plate, the annular first shell, the annular first inner sleeve and the annular bottom plate is an annular first cooling water cavity, the annular partition plate is arranged in the annular first cooling water cavity and sleeved outside the annular first inner sleeve, the annular first partition is divided into a lower-layer water inlet cavity and an upper-layer water outlet cavity, and the lower-layer water inlet cavity is communicated with the upper-layer water outlet cavity through a water cavity gap;
and a first water inlet and a first water outlet are arranged on the side wall of the first cooling water cavity, the first water inlet is connected with the lower water inlet cavity, and the first water outlet is connected with the upper water outlet cavity.
Further, the lower cooling section comprises an annular second outer shell, an annular second inner sleeve and an annular cylindrical partition plate;
wherein one end of the annular second outer shell is fixedly connected with the annular bottom plate, the other end of the annular second outer shell is movably connected with one end of the annular second inner sleeve, a cavity between the annular second outer shell and the annular second inner sleeve is an annular second cooling water cavity,
the annular cylindrical partition plate is arranged in the annular second inner sleeve, one end of the annular cylindrical partition plate is fixedly connected with the bottom of the annular second outer shell, the annular cylindrical partition plate divides the annular second cooling water cavity into an outer annular water cavity and an inner annular water cavity, the outer annular water cavity is communicated with the inner annular water cavity, and a water spraying unit is arranged on the inner annular water cavity;
the bottom of the annular second cooling water cavity is provided with a second water inlet, the inner side of the annular second cooling water cavity is provided with a second water outlet, the second water inlet is communicated with the outer annular water cavity, and the water spraying unit is communicated with the second water outlet.
Further, the lower cooling section also comprises an adjusting device, the adjusting device comprises an adjusting groove and an adjusting bolt,
the adjusting groove is arranged inside the annular second inner sleeve, and the adjusting bolt is arranged between the annular second outer shell and the annular second inner sleeve.
Furthermore, the water spraying unit is an annular water channel, and the width of the annular water channel is 0.1-10 mm.
Furthermore, the annular water channel is composed of two annular conical surfaces with 10-80-degree chamfers, and the annular conical surfaces of the two chamfers are symmetrically arranged on the annular second outer shell and the annular second inner sleeve respectively.
Further, the annular second outer shell, the annular second inner sleeve and the annular cylindrical partition plate are all made of stainless steel.
Further, the annular first outer shell, the annular bottom plate and the annular partition plate are all made of stainless steel, and the annular first inner sleeve is a water-cooling copper sleeve.
Further, the volume ratio of the inner ring water cavity to the outer ring water cavity is 1/10-1/5.
The vertical continuous casting system is characterized in that a crystallizer of the vertical continuous casting system adopts the compact multi-section small-sized cast rod continuous casting crystallizer system to realize cooling.
The beneficial effect of the invention is that, due to the adoption of the technical scheme, the multi-section continuous casting crystallizer system has the following advantages and use effects:
1. the upper cooling section and the lower cooling section are combined to realize primary crystallization and secondary cooling, the water flow and the temperature in the cooling water cavity are fed back in real time through a flow pressure gauge and a thermocouple, and the parameters of the cooling water in the water cavity are independently adjusted by utilizing a manual valve, so that the on-line independent control of the primary crystallization cooling intensity and the secondary cooling intensity is realized.
2. The size of the water spraying unit is changed by manually controlling the adjusting bolt in advance, so that cooling water can be gasified and atomized, and the uniform secondary cooling of the cast rod is enhanced.
3. The method can quickly solidify molten metal, reduce coarsening of as-cast crystal grains, improve the blank drawing speed, avoid the burning loss defect caused by excessive accumulation of the molten metal in a crystallizer system, and reduce the breakage or leakage accidents caused by thin blank shells in primary crystallization.
Description of the drawings:
FIG. 1 is a perspective view of a compact multi-segment small-scale cast bar continuous casting mold system of the present invention.
FIG. 2 is a cross-sectional view of a compact multi-segment small size cast bar continuous casting mold system of the present invention.
FIG. 3 is a schematic view of the structure of the lower cooling section of the present invention.
Fig. 4 is a front view of the annular second inner sleeve of the present invention.
FIG. 5 is a top view of the annular second inner sleeve of the present invention.
Fig. 6 is a cross-sectional view of the annular second housing of the present invention.
FIG. 7 is a graph of the surface quality of cast rods produced before and after the use of the crystallizer system of the present invention.
In the figure:
1. the water spraying device comprises a first water inlet, a second water outlet, a first annular outer shell, a flange plate, a first annular inner sleeve, a first graphite column type, a second graphite column type, a water outlet cavity, an upper layer, a lower layer, a water inlet cavity, a water cavity gap, a second annular partition plate, a first annular bottom plate, a second graphite column type, a water outlet cavity, a lower layer, a water inlet cavity, a lower layer, a water cavity gap, a second water inlet, a second water outlet, a second annular inner sleeve, a water outlet, a water spraying unit, a second annular cylindrical partition plate, a second annular outer shell, a second water inlet, a second water outlet, a second annular inner sleeve, a second outer ring.
The specific implementation mode is as follows:
the principles, aspects and advantages of the present invention will be further fully and completely explained with reference to the accompanying drawings.
As shown in figures 1 and 2, the invention relates to a compact multi-section small-sized cast rod continuous casting crystallizer system, which comprises an upper cooling section structure and a lower cooling section structure;
the upper cooling section structure is used for carrying out primary cooling on the rod-shaped casting blank to realize primary crystallization of the rod-shaped casting blank;
the lower cooling section structure is used for cooling the bar-shaped casting blank after crystallization again, cooling and hardening the blank shell and preventing the casting blank from breaking;
the inlet of the upper cooling section structure is connected with an induction heating furnace, the graphite column type 6 playing a role in lubricating and protecting the surface of a casting blank is arranged inside the upper cooling section structure, and the lower cooling section structure is fixedly connected with the bottom of the upper cooling section structure.
The upper cooling section structure comprises an annular first outer shell 3, an annular flange plate 4, an annular first inner sleeve 5, an annular bottom plate 11 and an annular partition plate 10;
wherein, cyclic annular first endotheca 5 sets up inside cyclic annular first shell 3, just cyclic annular first endotheca 5 with cyclic annular first shell 3 top with cyclic annular flange board 4 rigid coupling, cyclic annular bottom plate 11 sets up the bottom of cyclic annular first shell 3, the cavity is first cooling water chamber between cyclic annular flange board 4, cyclic annular first shell 3, cyclic annular first endotheca 5 and the cyclic annular bottom plate 11, cyclic annular baffle 10 is arranged in first cyclic annular cooling water intracavity, and the hitch knot the outside of cyclic annular first endotheca 5 is divided into lower floor's intake antrum 8 and upper strata play water cavity 7 with cyclic annular cooling water cavity, just communicate through water cavity gap 9 between lower floor's intake antrum 8 and the upper strata play water cavity 7.
And a first water inlet 1 and a first water outlet 2 are arranged on the side wall of the first cooling water cavity, and the water inlet 1 and the water outlet 2 are respectively connected with the lower water inlet cavity 8 and the upper water outlet cavity 7.
The lower cooling section comprises an annular second outer shell 20, an annular second inner sleeve 15 and an annular cylindrical partition plate 19;
one end of the annular second outer shell 20 is fixedly connected with the annular bottom plate 11, the other end of the annular second outer shell is movably connected with one end of the annular second inner sleeve 15, and a cavity between the annular second outer shell 20 and the annular second inner sleeve 15 is a second cooling water cavity.
The annular cylindrical partition plate 19 is arranged inside the annular second inner sleeve 15, one end of the annular cylindrical partition plate is fixedly connected with the bottom of the annular second outer shell 20, the second cooling water cavity is divided into an outer annular water cavity 16 and an inner annular water cavity 17 by the annular cylindrical partition plate 19, the outer annular water cavity 16 is communicated with the inner annular water cavity 17, and the inner annular water cavity 17 is provided with a water spraying unit 18;
and a second water inlet 13 and a second water outlet 14 are arranged on the second cooling water cavity, the second water inlet 13 is communicated with the outer annular water cavity 16, and the water spraying unit 18 is communicated with the second water outlet 14.
The lower cooling section further comprises an adjusting device, and the adjusting device 21 comprises an adjusting groove 21-1 and an adjusting bolt 21-2;
wherein, the adjusting slot 21-1 is arranged inside the annular second inner sleeve 15, and the adjusting bolt 21-2 is arranged between the annular second outer shell 20 and the annular second inner sleeve 15.
The water spraying unit 18 is an annular water channel, and the width of the annular water channel is 0.1-10 mm.
The annular water channel is composed of two annular conical surfaces with 10-80-degree chamfers, and the two annular conical surfaces with 10-80-degree chamfers are symmetrically arranged on the annular second outer shell 20 and the annular second inner sleeve 15 respectively.
The annular second outer shell 20, the annular second inner sleeve 15 and the annular cylindrical partition plate 19 are all made of stainless steel.
The annular first outer shell 3, the annular bottom plate 11 and the annular partition plate 10 are all made of stainless steel, and the annular first inner sleeve 5 is a water-cooling copper sleeve.
The thickness ratio of the inner ring water cavity 17 to the outer ring water cavity 16 is 1/10-1/5.
A vertical continuous casting system is characterized in that a crystallizer of the vertical continuous casting system adopts the compact multi-section small-sized cast rod continuous casting crystallizer system to realize cooling.
Example (b):
as shown in fig. 1, a compact multi-segment small-sized cast rod continuous casting crystallizer system, fig. 2 is a schematic cross-sectional view of fig. 1, and the multi-segment small-sized cast rod continuous casting crystallizer system includes an annular flange plate 4, an annular bottom plate 11, an annular first housing 3, an annular first inner sleeve 5, a graphite column 6, an annular partition plate 10, a first water inlet 1, a first water outlet 2, bolts 12, and other components. The annular flange plate 4 is welded at the upper end of the annular first shell 3, and the central axes are kept to be overlapped; the annular flange plate 4 is used for fixing the continuous casting crystallizer system at the lower end of the induction heating furnace through bolt connection; the lower half part of the graphite column type 6 is arranged in the annular first inner sleeve 5, the upper half part of the graphite column type 6 is arranged at the lower end of the induction heating furnace, the annular first inner sleeve 5 is connected with the annular first outer shell 3 through the bolt 12, and high-temperature-resistant sealant is wound at two ends of the annular first inner sleeve 5, so that sealing assembly at a joint is ensured, and cooling water is prevented from overflowing.
In the primary crystallization of the upper cooling section, an annular flange plate 4, an annular first outer shell 3 and an annular bottom plate 11 are fixed together by welding, an annular first outer shell 2, an annular first inner sleeve 5, an annular flange plate 4 and the bottom plate 11 form an annular first cooling water cavity, at the moment, the lower half part of a graphite column type 6 is arranged in the annular first cooling water cavity, an annular partition plate 10 divides the annular water cavity 7, 8 into a lower water inlet cavity 8 and an upper water outlet cavity 7, the lower water inlet cavity 8 is communicated with a first water inlet 1, one end of the first water inlet 1 extends into the annular water cavity 7, 8 and keeps a certain distance with the annular first inner sleeve 5, the first water inlet 1 is welded with the annular first outer shell 3 and the annular partition plate 10 together, the annular partition plate 10 is fixed at the middle position of the first water inlet 1, and the first water inlet 1 positioned in the upper water outlet cavity 7 is welded and sealed, the first water outlet 2 is welded in a similar way to the first water inlet 1, except that the first water outlet 2 is communicated with the upper water outlet cavity 7, wherein the annular partition plate 10 is welded and fixed on the annular first outer shell 3, and a certain gap is reserved between the annular partition plate and the annular first inner sleeve 5 to form a water cavity gap 9; the cooling water introduced by the first water inlet 1 is filled in the lower water inlet cavity 8 preferentially, directly contacts with the annular first inner sleeve 5 in the circumferential direction to perform heat exchange, cooling crystallization is performed, then, high-temperature cooling water flows into the upper water outlet cavity 7 through the water cavity gap 9 and flows out from the first water outlet 2, and the cooling process in primary crystallization is completed independently. The upper and lower water chambers effectively isolate low-temperature cooling water before heat exchange and high-temperature cooling water after heat exchange, can prevent two types of cooling water with different temperatures from being mixed together, and can improve cooling efficiency and cooling stability.
In the secondary cooling of the lower cooling section, as shown in fig. 3, an annular second outer shell 20 is connected with the annular second inner sleeve 15 by an adjusting bolt 21-2, a cavity between the annular second outer shell 20 and the annular second inner sleeve 15 forms a second cooling water cavity, the annular cylindrical partition plate 19 divides the cooling water cavity into inner and outer annular water cavities 16 and 17, the volume ratio of the inner annular water cavity 17 to the outer annular water cavity 16 is 1/10-1/5, and a gap is left between the lower end of the annular cylindrical partition plate 19 and the annular second inner sleeve 15, so that the cooling water in the outer annular water cavity 16 can flow into the inner annular water cavity 17.
A cooling water spraying unit 18 (annular water channel) is arranged between the annular second inner sleeve 15 and the annular second outer shell 20, is positioned in the inner annular water cavity 17 and close to the upper part of one side of the annular second inner sleeve 15, a nozzle faces a discharge hole of the upper cooling section, and is composed of an upper annular conical surface and a lower annular conical surface which are provided with 30-degree chamfers, the width of the annular water channel is the same as the vertical direction of the size of the gap 22, the size of the gap 22 in the vertical direction is regulated and controlled through an adjusting bolt 21-2, the interval between the conical surfaces is further controlled to move within the range of 0.1-10mm, and the cooling water pressure and temperature are adjusted in. Cooling water enters the outer ring water cavity 16 from the water inlet 13, enters the inner ring water cavity 17 after the outer ring water cavity 16 is filled with the cooling water, finally, cooling media in different states are formed by the water spraying unit 18, and directly contact with the circumferential direction of the cast rod to carry out heat exchange, secondary cooling is implemented to ensure that the cast rod is completely solidified, then the cooling water flows out from the annular second inner sleeve 15 along the surface of the cast rod to form a second water outlet 14, and the first water inlet 13 is welded and fixed below the annular second inner sleeve and is communicated with the outer ring water cavity 16.
The graphite column type 6 is embedded in the annular first inner sleeve 5, the graphite column type 6 and the annular first inner sleeve are tightly combined in a hot charging mode, the inner wall of the graphite column type 6 is polished, the frictional resistance between a casting blank and the graphite column type wall is reduced, a good lubricating effect is achieved in the blank drawing process, the surface quality of a casting rod is improved, and the yield is improved.
Fig. 4 is a front view of the annular second inner sleeve, fig. 5 is a plan view of the annular second inner sleeve, and fig. 6 is a sectional view of the annular second outer shell. As can be seen from the figure, the annular second outer shell is annular, the inner annular wall is processed into a conical surface with a 30-degree chamfer, the upper end of the annular second inner sleeve 15 is processed into a conical surface with a 30-degree chamfer as shown in FIG. 4, the two conical surfaces are parallel to form the water spraying unit 18 together, the width of the annular water channel in the water spraying unit 18 is controlled through the adjusting bolt 21-2, the cooling water is gasified and atomized respectively by controlling the pressure and the temperature of the cooling water in a matching manner, the secondary cooling intensity is regulated and controlled, and the tissue defect caused by chilling or weak cooling is avoided.
FIG. 7 is a graph of the surface quality of cast bars produced before and after the use of the crystallizer system, and shows an embodiment of the present invention. I, II and III are cast rods produced before the crystallizer system is used, and IV is cast rods produced after the crystallizer system is used, wherein the cast rods have burning loss and breaking gaps with different degrees, and a large amount of pits and scars are distributed on the surfaces of the cast rods, and the defects are caused by uneven and insufficient cooling of the crystallizer system; after the crystallizer system is used, the surface of the cast rod is bright and smooth, the stretch-break accident does not occur, and the overall quality of the cast rod is obviously improved.
The compact multi-segment small-sized casting bar continuous casting crystallizer system provided by the embodiment of the application is described in detail above. The above description of the embodiments is only for the purpose of helping to understand the method of the present application and its core ideas; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
As used in the specification and claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect.
The description which follows is a preferred embodiment of the present application, but is made for the purpose of illustrating the general principles of the application and not for the purpose of limiting the scope of the application. The protection scope of the present application shall be subject to the definitions of the appended claims.
It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
The foregoing description shows and describes several preferred embodiments of the present application, but as aforementioned, it is to be understood that the application is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the application as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the application, which is to be protected by the claims appended hereto.
Claims (10)
1. A compact multi-section small-sized cast rod continuous casting crystallizer system comprises an induction heating furnace, a graphite column and a crystallizer, and is characterized in that the crystallizer comprises an upper cooling section structure and a lower cooling section structure;
the upper cooling section structure is used for carrying out primary cooling on the rod-shaped casting blank to realize primary crystallization of the rod-shaped casting blank;
the lower cooling section structure is used for cooling the bar-shaped casting blank after crystallization again, cooling and hardening the blank shell and preventing the casting blank from breaking;
the top of the graphite column is connected with an induction heating furnace, the lower half part of the graphite column is arranged in the upper cooling section structure, and the lower cooling section structure is fixedly connected with the bottom of the upper cooling section structure.
2. The crystallizer system of claim 1, wherein the upper cooling section structure comprises an annular first outer shell, an annular flange plate, an annular first inner sleeve, an annular bottom plate, and an annular partition;
the annular first inner sleeve is arranged inside the annular first shell, the annular first inner sleeve is fixedly connected with the annular flange plate at the top of the annular first shell, the annular bottom plate is arranged at the bottom of the first shell, a cavity among the annular flange plate, the annular first shell, the annular first inner sleeve and the annular bottom plate is a first cooling water cavity, the annular partition plate is arranged inside the annular first cooling water cavity and sleeved outside the annular first inner sleeve, the annular cooling water cavity is divided into a lower-layer water inlet cavity and an upper-layer water outlet cavity, and the lower-layer water inlet cavity is communicated with the upper-layer water outlet cavity through a water cavity gap;
and a first water inlet and a first water outlet are arranged on the side wall of the first cooling water cavity, the first water inlet is connected with the lower water inlet cavity, and the first water outlet is connected with the upper water outlet cavity.
3. The crystallizer system of claim 2, wherein the lower cooling section comprises an annular second outer shell, an annular second inner shell, and an annular cylindrical partition;
one end of the annular second outer shell is fixedly connected with the annular bottom plate, the other end of the annular second outer shell is movably connected with one end of the annular second inner sleeve, and a cavity between the annular second outer shell and the annular second inner sleeve is an annular second cooling water cavity;
the annular cylindrical partition plate is arranged in the annular second cooling water cavity, one end of the annular cylindrical partition plate is fixedly connected with the bottom of the annular second shell, the annular second cooling water cavity is divided into an outer ring water cavity and an inner ring water cavity by the annular cylindrical partition plate, the outer ring water cavity is communicated with the inner ring water cavity, and a water spraying unit is arranged on the inner ring water cavity;
and a second water inlet and a second water outlet are formed in the second cooling water cavity, the second water inlet is communicated with the outer ring water cavity, and the water spraying unit is communicated with the second water outlet.
4. The crystallizer system of claim 3, wherein the lower cooling section further comprises an adjustment device comprising an adjustment slot and an adjustment bolt;
the adjusting groove is arranged inside the annular second inner sleeve, and the adjusting bolt is arranged between the annular second outer shell and the annular second inner sleeve.
5. The crystallizer system of claim 4, wherein the water spray unit is an annular water channel having a width of 0.1-10 mm.
6. The crystallizer system of claim 5, wherein the annular water channel is formed by two annular tapered surfaces with 10-80 ° chamfers, the annular tapered surfaces of the two chamfers being symmetrically disposed on the annular second outer shell and the annular second inner jacket, respectively.
7. The crystallizer system of claim 3, wherein the annular second outer shell, the annular second inner sleeve, and the annular cylindrical partition are each made of stainless steel.
8. The crystallizer system of claim 2, wherein the annular first outer shell, the annular bottom plate, and the annular partition are all made of stainless steel, and the annular first inner sleeve is a water-cooled copper sleeve.
9. The crystallizer system of claim 4, wherein the volume ratio of the inner and outer water cavities is 1/10-1/5.
10. A vertical continuous casting system, characterized in that the mold of the vertical continuous casting system employs a compact multi-segment compact small-sized cast rod continuous casting mold system according to any one of claims 1 to 9.
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| CN202010316691.1A CN111482565B (en) | 2020-04-21 | 2020-04-21 | Compact multi-section small-sized cast rod continuous casting crystallizer system |
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| CN111957917A (en) * | 2020-09-17 | 2020-11-20 | 贵州理工学院 | Device and method for obtaining continuous casting mold flux solidified slag film |
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| SU455793A1 (en) * | 1973-06-26 | 1975-01-05 | Украинский Заочный Политехническиий Институт | Evaporative Cooling Mold |
| SU725790A1 (en) * | 1977-11-14 | 1980-04-15 | Государственный Научно-Исследовательский И Проектный Институт Сплавов И Обработки Цветных Металлов | Open-ended mould for continuous ingot casting |
| DE69515726T2 (en) * | 1994-06-06 | 2000-11-23 | Danieli Off Mecc | Downstream part of a continuous casting mold with thin side walls |
| CN202045348U (en) * | 2011-03-30 | 2011-11-23 | 金川集团有限公司 | Vertical type semi-continuous casting crystallizer with double-layer water cavities |
| CN202224613U (en) * | 2011-09-30 | 2012-05-23 | 宁波正元铜合金有限公司 | Metal horizontal continuous casting crystallizer |
| CN202224614U (en) * | 2011-09-30 | 2012-05-23 | 宁波正元铜合金有限公司 | Connector for communication between continuous metal casting mould and metal melting furnace |
| CN202752561U (en) * | 2012-07-06 | 2013-02-27 | 路达(厦门)工业有限公司 | Metal alloy trial-producing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111957917A (en) * | 2020-09-17 | 2020-11-20 | 贵州理工学院 | Device and method for obtaining continuous casting mold flux solidified slag film |
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| CN111482565B (en) | 2021-06-01 |
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