Intermediate rolling device for continuous casting billet

Abstract

The utility model relates to the technical field of metallurgy rolling, in particular to a continuous casting billet intermediate rolling device which comprises a vertical supporting seat, a limiting frame, a first intermediate roller and a second intermediate roller, the limiting frame is connected with the vertical supporting seat, the first intermediate roller and the second intermediate roller are limited on the limiting frame, the first intermediate roller and the second intermediate roller are oppositely arranged, and the vertical supporting seat is connected with the limiting frame. A continuous casting billet can penetrate through the space between the first middle roller and the second middle roller, the first middle roller comprises a first pressing roller and a first cooling mechanism, and the first cooling mechanism can cool the first pressing roller; the first middle roller comprises a first pressing roller and a first cooling mechanism, the second middle roller comprises a second pressing roller and a second cooling mechanism, the second cooling mechanism can cool the first pressing roller, the corresponding cooling mechanisms are arranged on the two pressing rollers, and the pressing rollers are rapidly cooled based on the cooling mechanisms, so that the deformation of the pressing rollers caused by long-time work is reduced to a certain extent.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical rolling technology, specifically to a rolling mill device for continuous casting billets. Background Technology

[0002] Intermediate rolling refers to the processing of rough-rolled blanks, with the main purpose of producing thinner and wider sheets. Intermediate rolling rolls are relatively small, requiring higher rolling forces to achieve the desired compression ratio. Intermediate-rolled metal sheets have a smoother surface and higher dimensional accuracy, making it a crucial process in the production of high-precision sheet metal.

[0003] During the intermediate rolling process, as the pressure rolls continue to act, the temperature of the continuously cast billet will continue to rise, thereby reducing the mechanical strength of the pressure rolls and causing some deformation. This deformation can easily lead to changes in the rolled dimensions, and as this process continues, the dimensional changes will gradually intensify. Utility Model Content

[0004] This utility model addresses the above problems by providing a continuous casting billet intermediate rolling device.

[0005] The technical solution adopted is a continuous casting billet intermediate rolling device, including a vertical support base, a limiting frame, a first intermediate roll and a second intermediate roll. The limiting frame is connected to the vertical support base. The first intermediate roll and the second intermediate roll are limited on the limiting frame and are arranged opposite to each other. The continuous casting billet can pass between the first intermediate roll and the second intermediate roll. The first intermediate roll includes a first pressure roll and a first cooling mechanism. The first cooling mechanism can cool the first pressure roll.

[0006] The second intermediate roll includes a second pressure roll and a second cooling mechanism, the second cooling mechanism being able to cool the first pressure roll.

[0007] Optionally, the first cooling mechanism includes a first baffle and a first nozzle. The first baffle is located on the side of the first pressure roller away from the continuously cast billet, and the first nozzle can spray coolant and is directed toward the first pressure roller.

[0008] The second cooling mechanism includes a second baffle and a second nozzle. The second baffle is located on the side of the second pressure roller away from the continuously cast billet, and the second nozzle can spray coolant and is oriented towards the second pressure roller.

[0009] Optionally, one end of the first baffle is connected to the base via a first connecting rod;

[0010] One end of the second baffle is connected to the base via a second connecting rod.

[0011] Optionally, both the first and second baffles have an arc-shaped structure.

[0012] Optionally, there is a gap between the first baffle and the first pressure roller, and the coolant sprayed from the first nozzle can flow out through the gap;

[0013] There is a gap between the second baffle and the second pressure roller, and the coolant sprayed from the second nozzle can flow out through the gap.

[0014] Optionally, the first baffle is positioned close to the first nozzle, and the angle of the first baffle is between 30° and 50°;

[0015] The second baffle is positioned close to the second nozzle, and the angle of the second baffle is between 30° and 50°.

[0016] The advantages of this utility model include:

[0017] 1. By setting corresponding cooling mechanisms on the two pressure rollers, the pressure rollers are cooled down quickly by the cooling mechanisms, thereby reducing the deformation of the pressure rollers caused by long-term operation to a certain extent.

[0018] 2. A special structure of baffle and nozzle is provided. Compared with conventional water cooling, the baffle and nozzle can increase the contact time between the coolant and the pressure roller, thereby improving the cooling efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a continuous casting billet intermediate rolling device;

[0020] Figure 2 This is a schematic diagram of the baffle and nozzle structure.

[0021] The attached figures are labeled as follows: 1 is the vertical support base, 2 is the limiting frame, 3 is the first motor, 4 is the second motor, 5 is the first pressure roller shaft, 6 is the second pressure roller shaft, 7 is the first pressure roller, 8 is the second pressure roller, 9 is the continuous casting billet, 10 is the first baffle, 11 is the second baffle, 12 is the first nozzle, 13 is the second nozzle, 14 is the first connecting rod, and 15 is the second connecting rod. Detailed Implementation

[0022] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other.

[0023] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0024] like Figures 1 to 2 As shown, a continuous casting billet intermediate rolling device includes a vertical support base 1, a limiting frame 2, a first intermediate roll and a second intermediate roll. The limiting frame 2 is connected to the vertical support base 1. The first intermediate roll and the second intermediate roll are limited on the limiting frame 2 and are arranged opposite to each other. A continuous casting billet 9 can pass between the first intermediate roll and the second intermediate roll. The first intermediate roll includes a first pressure roll 7 and a first cooling mechanism. The first cooling mechanism can cool the first pressure roll 7.

[0025] The second intermediate roll includes a second pressure roll 8 and a second cooling mechanism, the second cooling mechanism being able to cool the first pressure roll 8.

[0026] The purpose of this design is to reduce the deformation of the pressure rollers caused by prolonged operation by rapidly cooling them through corresponding cooling mechanisms on the two pressure rollers. A special structure of baffles and nozzles is provided, which, compared to conventional water cooling, can increase the contact time between the coolant and the pressure rollers, thereby improving cooling efficiency.

[0027] It should be noted that the first intermediate roll typically includes a first motor 3, a first pressure roll shaft 5, and a first pressure roll, wherein the first motor can drive the first pressure roll shaft to rotate, and drive the first pressure roll to rotate based on the first pressure roll shaft.

[0028] Similarly, the second roll typically includes a second motor 4, a second pressure roller shaft 6, and a second pressure roller. The second motor can drive the second pressure roller shaft to rotate, and based on the second pressure roller shaft, it drives the second pressure roller to rotate.

[0029] In order to ensure the stable operation of the entire device, a base is also provided at the end of the first and second pressure roller shafts.

[0030] In this embodiment, the first cooling mechanism includes a first baffle 10 and a first nozzle 12. The first baffle 10 is disposed on the side of the first pressure roller 7 away from the continuous casting billet 9. The first nozzle 12 can spray coolant and is oriented towards the first pressure roller 7.

[0031] The second cooling mechanism includes a second baffle 11 and a second nozzle 13. The second baffle 11 is located on the side of the second pressure roller 8 away from the continuous casting billet 9. The second nozzle 13 can spray coolant and is oriented towards the second pressure roller 8.

[0032] One end of the first baffle 10 is connected to the base via the first connecting rod 14;

[0033] One end of the second baffle 11 is connected to the base via the second connecting rod 15.

[0034] Both the first baffle 10 and the second baffle 11 have an arc-shaped structure.

[0035] At the same time, there is a gap between the first baffle 10 and the first pressure roller 7, and the coolant sprayed from the first nozzle 12 can flow out from the gap;

[0036] There is a gap between the second baffle 11 and the second pressure roller 8, and the coolant sprayed from the second nozzle 13 can flow out through the gap.

[0037] Furthermore, the first baffle 10 is positioned close to the first nozzle 12, and the angle of the first baffle 10 is between 30° and 50°.

[0038] The second baffle 11 is positioned close to the second nozzle 13, and the angle of the second baffle 11 is between 30° and 50°.

[0039] The purpose of this design is to provide a special structure for the baffle and nozzle, which, compared to conventional water cooling, can increase the contact time between the coolant and the pressure roller, thereby improving the cooling efficiency.

[0040] In a typical water-cooled structure, the coolant is sprayed directly onto the pressure roller through a nozzle. In this method, the sprayed coolant flows down quickly. However, with an arc-shaped baffle that coincides with the center of the pressure roller, the sprayed coolant flows towards the outer baffle after contacting the pressure roller. Some of it flows down through the gap, while the rest is blocked and flows back. Because of the arc shape, the flow direction can be forward or backward, which greatly increases the spraying area and contact area.

[0041] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A continuous casting billet intermediate rolling device, comprising a vertical support base (1), a limiting frame (2), a first intermediate roll and a second intermediate roll, wherein the limiting frame (2) is connected to the vertical support base (1), the first intermediate roll and the second intermediate roll are limited on the limiting frame (2), and the first intermediate roll and the second intermediate roll are arranged opposite to each other, and a continuous casting billet (9) can pass between the first intermediate roll and the second intermediate roll, characterized in that, The first intermediate roll includes a first pressure roll (7) and a first cooling mechanism, the first cooling mechanism being able to cool the first pressure roll (7); The second intermediate roll includes a second pressure roll (8) and a second cooling mechanism, which can cool the second pressure roll (8).

2. The continuous casting billet intermediate rolling device according to claim 1, characterized in that, The first cooling mechanism includes a first baffle (10) and a first nozzle (12). The first baffle (10) is located on the side of the first pressure roller (7) away from the continuous casting billet (9). The first nozzle (12) can spray coolant and faces the first pressure roller (7). The second cooling mechanism includes a second baffle (11) and a second nozzle (13). The second baffle (11) is located on the side of the second pressure roller (8) away from the continuous casting billet (9). The second nozzle (13) can spray coolant and faces the second pressure roller (8).

3. The continuous casting billet intermediate rolling device according to claim 2, characterized in that, One end of the first baffle (10) is connected to the base via the first connecting rod (14); One end of the second baffle (11) is connected to the base via the second connecting rod (15).

4. The continuous casting billet intermediate rolling device according to claim 2, characterized in that, Both the first baffle (10) and the second baffle (11) have an arc-shaped structure.

5. The continuous casting billet intermediate rolling device according to claim 4, characterized in that, There is a gap between the first baffle (10) and the first pressure roller (7), and the coolant sprayed from the first nozzle (12) can flow out from the gap; There is a gap between the second baffle (11) and the second pressure roller (8), and the coolant sprayed from the second nozzle (13) can flow out from the gap.

6. The continuous casting billet intermediate rolling device according to claim 4, characterized in that, The first baffle (10) is positioned close to the first nozzle (12), and the angle of the first baffle (10) is between 30° and 50°. The second baffle (11) is positioned close to the second nozzle (13), and the angle of the second baffle (11) is between 30° and 50°.

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