A kind of sectional cooling structure of continuous cast mold inner ring surface
Technical field
This utility model relates to the production equipment of a kind of continuous casting and rolling, the sectional cooling structure of a kind of continuous cast mold inner ring surface in continuous casting continuous rolling equipment, belongs to continuous casting continuous rolling equipment technical field.
Background technology
Crystallizer is the key equipment in aluminum (copper) bar continuous casting and tandem rolling production line, and crystallizing wheel typically uses the metal material (such as copper or copper alloy) of good heat conductivity to make, and its periphery wall is with the casting groove arranged around ring week.In production line work process, the casting groove of wheeled steel traction steel band and crystallizing wheel fits formation die cavity, after melted molten metal is entered die cavity by the casting gate of side, through the process of supercooling, crystallization and coagulation forming in die cavity, and pull out from throwing mouth along with the rotation of crystallizing wheel.
The outgoing quality that casting process crystallizing wheel is produced by cooling procedure is most important.Crystallizing wheel is carried out forcing cooling by the form that general existing crystallizing wheel uses multiaspect (on four sides) to cool down.Relatively conventional is to cool down by the way of directly spray, as then disclosed a kind of continuous cast mold using four sides spraying cooling in CN10165890A.
Obviously, the mode cooling effect of spraying cooling depends on the intensity of spray, but the time of staying that coolant sprays process too small makes amount of cooling water be difficult to reach requirement, or the intensity of spraying cooling is wayward.Additionally the process of spraying cooling there is also the situation of coolant splash so that is likely to result in high-temperature liquid metal in the forming process of casting groove and produces the defect such as bubble or interlayer, directly affects the quality of product.
In order to solve the problems referred to above, CN201217063Y and CN204321127U discloses and builds the scheme of cooling chamber at crystallizing wheel inner ring surface and carry out the technology that cools down.On the one hand the design of this cooling structure improves the controllability of amount of cooling water and cooling procedure, on the other hand also makes the problem of tradition spray process coolant splash have been resolved.
But loop configuration and the production process of rotation due to crystallizing wheel, existing cooling chamber carries out in cooling scheme design, the distribution of coolant and the coolant problem that is fully contacted on Cooling Heat Transfer face is the most fully solved, particularly in CN204321127U, its cooling liquid inlet being positioned at same internal ring side and cooling liquid outlet design make heat-transfer area in whole operation process there may be gas district or region of no pressure, it is difficult to ensure that heat-transfer area can completely attach to coolant all the time, so that the heat transfer of cooling procedure is undesirable, inefficient, or make upper cooling procedure of whole ring week be difficult to regulate and control.
Summary of the invention
Goal of the invention of the present utility model is: for the problem of above-mentioned existence, it is provided that a kind of simple in construction, the sectional cooling structure of reliable continuous cast mold inner ring surface, the stability of cooling effectiveness and cooling procedure to improve continuous cast mold inner ring surface.
The technical solution adopted in the utility model is as follows:
A kind of sectional cooling structure of continuous cast mold inner ring surface, including crystallizing wheel wheel body and the casting groove being arranged at crystallizing wheel wheel body periphery wall, crystallizing wheel wheel body is assemblied between two rotating disks, is additionally provided with the transverse slat arranged along ring week between two rotating disks, and described transverse slat is positioned at inside the ring of crystallizing wheel wheel body;The main cavity for coolant circulation is constituted between described crystallizing wheel wheel body, rotating disk and transverse slat, ring cavity is offered between the fitting surface of described crystallizing wheel wheel body and rotating disk, described ring cavity is connected with main cavity, it is provided with the import entered for coolant on described transverse slat, the rotating disk of ring cavity position is provided with the outlet flowed out for coolant;Main chamber body is made up of along ring week at least 3 unit chambeies, each unit chamber is formed (that is: main cavity is become at least 3 unit chambeies along ring week by separator lined) by the separator lined in main cavity, each unit is provided with inlet and outlet on chamber, each outlet all extends to transverse slat place radial location by pipeline, or extends to the position within the radius of transverse slat place.
Further, described inlet and outlet is crisscross arranged on hoop.
Further, ring cavity is all offered between the crystallizing wheel wheel body of described crystallizing wheel wheel body both sides and rotating disk fitting surface.
Further, described import is positioned at the centre position of transverse slat width.
Further, the ring week of described transverse slat is provided with multiple import.
Further, described inlets even was distributed on the ring week of transverse slat.
Further, the ring week of described ring cavity is provided with multiple outlet.
Further, described outlet was uniformly distributed on the ring week of ring cavity.
Further, between the crystallizing wheel wheel body of described crystallizing wheel wheel body both sides and rotating disk fitting surface, all offer ring cavity, and the outlet of two ring cavities is positioned at same hoop position.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
1, the sectional cooling structure of described continuous cast mold inner ring surface, crystallizing wheel wheel body, the main cavity for coolant circulation is constituted between rotating disk and transverse slat, the heat-transfer area of crystallizing wheel wheel body is as a sidewall of cooling main cavity, it is simultaneously fitted within the mode offering ring cavity between the fitting surface of crystallizing wheel wheel body and rotating disk, and the import that coolant enters is arranged on transverse slat, the outlet that coolant flows out is arranged on the rotating disk of ring cavity position, the thermal transfer surface making crystallizing wheel wheel body can be submerged in coolant all the time, cool down compared to existing cooling chamber, in this programme, coolant is greatly improved at uniformity and the effective heat transfer area of chamber indoor distribution, it is effectively guaranteed the controllability of cooling effectiveness and cooling procedure;
2, the sub-sectional cooling structure that main chamber body is made up of along ring week at least 3 unit chambeies, multiple cavity design will be divided on whole circumference, can avoid further due to the loop configuration of crystallizing wheel and the production process of rotation coolant in the adverse effect of chamber distribution in vivo, being conducive to the raising of heat transfer efficiency, the most such design is additionally favorable for independently controlling the heat transfer intensity in each unit chamber;
3, this utility model middle outlet extends to the design of transverse slat place radial location by pipeline, or extend to the design of position within the radius of transverse slat place, make continuous cast mold in operation process, particularly at the crystallizing wheel wheel body being positioned at lower section, it is beneficial to form coolant fluidised form of low in and high out in main cavity, is further ensured that the cooling effect of crystallizing wheel wheel body low spot.
Accompanying drawing explanation
Fig. 1 is the cross section structure schematic diagram of the sectional cooling structure of this utility model continuous cast mold inner ring surface,
Fig. 2 is that the A-A of this utility model Fig. 1 is to generalized section.
Labelling in figure: 1-crystallizing wheel wheel body, 11-cast groove, 12-fin, 2-rotating disk, 3-transverse slat, 4-main cavity, 41-import, 42-outlet, 43-unit chamber, 44-dividing plate, 5-ring cavity, 6-pipeline.
Detailed description of the invention
Below in conjunction with the accompanying drawings, this utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.
Embodiment
The sectional cooling structure of continuous cast mold inner ring surface of the present utility model, its structure is as shown in Figure 1, including crystallizing wheel wheel body 1 and the casting groove 11 being arranged at crystallizing wheel wheel body 1 periphery wall, crystallizing wheel wheel body 1 is assemblied between two rotating disks 2, being additionally provided with the transverse slat 3 arranged along ring week between two rotating disks 2, described transverse slat 3 is positioned at inside the ring of crystallizing wheel wheel body 1;The main cavity 4 for coolant circulation is constituted between described crystallizing wheel wheel body 1, rotating disk 2 and transverse slat 3, ring cavity 5 is offered between the fitting surface of described crystallizing wheel wheel body 1 and rotating disk 2, described ring cavity 5 is connected with main cavity 4, it is provided with the import 41 entered for coolant on described transverse slat 3, the rotating disk 2 of ring cavity 5 position is provided with the outlet 42 flowed out for coolant.
The sectional cooling structure of described continuous cast mold inner ring surface, crystallizing wheel wheel body, the main cavity for coolant circulation is constituted between rotating disk and transverse slat, the heat-transfer area of crystallizing wheel wheel body is as a sidewall of cooling main cavity, it is simultaneously fitted within the mode offering ring cavity between the fitting surface of crystallizing wheel wheel body and rotating disk, and the import that coolant enters is arranged on transverse slat, the outlet that coolant flows out is arranged on the rotating disk of ring cavity position, the thermal transfer surface making crystallizing wheel wheel body can be submerged in coolant all the time, cool down compared to existing cooling chamber, in this programme, coolant is greatly improved at uniformity and the effective heat transfer area of chamber indoor distribution, it is effectively guaranteed the controllability of cooling effectiveness and cooling procedure.
Obviously circulation and storage as main cavity 4 coolant are necessary, be main cavity 4 be the structure of an edge seal.In a specific embodiment, resistant to elevated temperatures sealing member (do not illustrate in figure, but those skilled in the art will not be caused the puzzlement in understanding) it is provided with between the fitting surface of described crystallizing wheel wheel body 1 and rotating disk 2.Additionally crystallizing wheel wheel body 1 can be attached fixing by bolt with rotating disk 2, concrete: on crystallizing wheel wheel body 1 sidewall, tapped screw is set, crystallizing wheel wheel body 1 and rotating disk 2 are assembled into overall structure through rotating disk 2 by bolt, and resistant to elevated temperatures sealing member is between crystallizing wheel wheel body 1 and rotating disk 2.
It addition, be also equipped with sealing member between rotating disk 2 and transverse slat 3 fitting surface.Rotating disk 2 and transverse slat 3 are assembled by conventional bolt connection, or rotating disk 2 and transverse slat 3 directly weld and crystallizing wheel wheel body 1, rotating disk 2 and transverse slat 3 are assembled into overall structure.
In order to avoid further in above-mentioned design basis due to the loop configuration of crystallizing wheel and the production process of rotation coolant in the adverse effect of chamber distribution in vivo, main chamber body 4 is made up of along ring week at least 3 unit chambeies 43, as shown in Figure 2, each unit chamber 43 is divided by the dividing plate 44 in main cavity 4 and forms, (that is: main cavity 4 is divided at least 3 unit chambeies 43 along ring week by dividing plate 44), each unit chamber 43 is provided with import 41 and outlet 42.Such raising being designed with beneficially heat transfer efficiency, is additionally favorable for independently controlling the heat transfer intensity in each unit chamber simultaneously.
On the basis of above-mentioned design, each outlet 42 on each unit chamber 43 all extends to transverse slat 3 place radial location by pipeline 6, or extends to the position within the radius of transverse slat 3 place.As shown in Figure 1 or 2, Fig. 1 indicates and extends to the signal of transverse slat 3 place radial location, and Fig. 2 indicates the position signal extended within the radius of transverse slat 3 place.Such design makes continuous cast mold in operation process, particularly advantageously forms the coolant fluidised form in main cavity low in and high out at the crystallizing wheel wheel body being positioned at lower section, is further ensured that the cooling effect of crystallizing wheel wheel body low spot.
As optionally, pipeline 6 can be to be arranged on the independent pipeline outside rotating disk 2, or is opened in the duct of rotating disk 2 inwall.
In order to strengthen the heat transfer efficiency of crystallizing wheel wheel body 1 further, crystallizing wheel wheel body 1 sidewall is provided with fin 12.
In another detailed description of the invention, mainly the position of offering of ring cavity 5 is further elaborated, owing to ring cavity 5 is arranged at the fitting surface of crystallizing wheel wheel body 1 and rotating disk 2, therefore ring cavity 5 has three concrete set-up modes: a kind of is to offer annular groove at the sidewall of crystallizing wheel wheel body 1, form ring cavity 5 structure as shown in Figure 1, another kind is to offer annular groove in the medial wall of rotating disk 2 and forms (to offer annular groove similar with the sidewall of crystallizing wheel wheel body 1), and also one is all to offer annular groove at crystallizing wheel wheel body 1 and rotating disk 2 and be collectively forming.The sidewall of crystallizing wheel wheel body 1 is offered ring groove shape and is become the scheme of ring cavity 5 preferable in a specific embodiment, on the one hand reduces the consumption of crystallizing wheel wheel body 1 copper material, on the other hand improves its heat transfer area, does not interferes with the structure design of rotating disk 2 simultaneously.
In order to improve the uniformity flowing to distribution of heat transfer efficiency and coolant, import 41 will be illustrated with the relative position of ring cavity 5 in another detailed description of the invention, mainly include that side arranges the situation of ring cavity 5 and both sides are respectively provided with the situation of ring cavity 5.
When only offering ring cavity 5 on one of them fitting surface of crystallizing wheel wheel body 1 and rotating disk 2, import 41 needs on the transverse slat 3 of oppositely disposed fitting surface position, so advantageously reduces the heat transfer dead angle on whole crystallizing wheel wheel body 1 width, improves heat transfer efficiency.
When all offering ring cavity 5 when between the crystallizing wheel wheel body 1 and rotating disk 2 fitting surface of crystallizing wheel wheel body 1 both sides, import 41 may be provided at any width of transverse slat 3.
But as preferably design, when all offering ring cavity 5 when between the crystallizing wheel wheel body 1 and rotating disk 2 fitting surface of crystallizing wheel wheel body 1 both sides, import 41 should be positioned at the centre position of transverse slat 3 width, to ensure that the ring cavity 5 of both sides has fluid resistance and the transmission path of equalization, it is ensured that the heat exchange of both sides uniform.
In order to improve the heat transfer efficiency at whole circumference, it is provided with multiple import 41 the ring week of described transverse slat 3.In order to ensure the uniformity of the heat transfer of each ring week position, described import 41 is to be uniformly distributed on the ring week of transverse slat 3.
Identical with import 41 setting principle, the ring week of described ring cavity 5 is provided with multiple outlet 42.In order to ensure the uniformity of the heat transfer of each ring week position, described outlet 42 is to be uniformly distributed on the ring week of ring cavity 5.
Multiple imports 41 and multiple outlet 42 design as described in Figure 2, and Fig. 2 is only used as import 41, the schematic diagram that is circular layout of outlet 42, and does not illustrates meaning according to correlation ratio.
Design as another one optimization, the ring cavity 5 of both sides has the identical outlet of quantity 42, to ensure that both sides have identical coolant discharge, it is ensured that the amount of cooling water on whole casting groove 11 width.
It is that each outlet 42 on two ring cavities 5 is arranged on same hoop position, to ensure that the coolant that import about 41 two flows to has similar flow morphology as optimizing design further.As optimizing design further, import 41 and outlet 42 were crisscross arranged on ring week, i.e. import 41, outlet 42 have angle, as shown in Figure 2 with the line in axle center, the most also it is avoided that coolant fluid is walked short circuit and formed the heat transfer dead angle of heat-transfer area, is conducive to improving heat transfer efficiency.
The sectional cooling structure of continuous cast mold inner ring surface of the present utility model, its design is ingenious, simple and reliable for structure, compared to existing cavity type cooling scheme, can effectively improve the cooling effectiveness of continuous cast mold inner ring surface, and it is beneficial to improve the stability of cooling procedure, the sub-sectional cooling structure in the most multiple unit chambeies is designed to avoid further due to the loop configuration of crystallizing wheel and the production process of rotation coolant in the adverse effect of chamber distribution in vivo, be conducive to the raising of heat transfer efficiency, the most such design is additionally favorable for independently controlling the heat transfer intensity in each unit chamber.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, within should be included in protection domain of the present utility model.