CN216858176U - Continuous casting rectangular billet and bloom casting auxiliary device - Google Patents
Continuous casting rectangular billet and bloom casting auxiliary device Download PDFInfo
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- CN216858176U CN216858176U CN202220396337.9U CN202220396337U CN216858176U CN 216858176 U CN216858176 U CN 216858176U CN 202220396337 U CN202220396337 U CN 202220396337U CN 216858176 U CN216858176 U CN 216858176U
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- dovetail groove
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Abstract
The utility model relates to continuous casting tundish casting in a steel plant, in particular to a continuous casting rectangular billet and bloom casting auxiliary device. The method avoids the phenomenon of molten steel bridging caused by scattered flow in the early stage of casting, and can stably improve the casting success rate of the continuous casting tundish. Comprises a rectangular frame; the rectangular frame comprises an upper rectangular frame and a lower rectangular frame which are arranged in parallel: an upper rectangular frame and a lower rectangular frame; the upper rectangular frame and the lower rectangular frame are connected through a plurality of supporting rods; and a dovetail groove positioning hook for fixing a dummy bar head dovetail groove is arranged below the lower rectangular frame and fixedly connected with the lower rectangular frame.
Description
Technical Field
The utility model relates to continuous casting tundish casting in a steel plant, in particular to a continuous casting rectangular billet and bloom casting auxiliary device.
Background
In the preparation work before casting of the original continuous casting rectangular billet and bloom billet, the dummy bar head is generally blocked by a hook head or a dummy bar cap. In the plugging process, cold materials are used for placing on the hook head or the dummy bar cap for hook head protection, casting is carried out after encapsulation, and the molten steel of the tundish is easy to flow in a scattering manner or flow unsmooth in the casting process. Molten steel flowing into the crystallizer is scattered or flows unsmooth, and then the molten steel can directly contact with a cold charge, and the molten steel is solidified at the cold charge in the contact process at the extremely high speed, but cannot timely flow to a dovetail groove part of a dummy bar head because the molten steel is scattered or flows discontinuously and continuously downwards, so that the molten steel is solidified to form a solidification bridging phenomenon of intermediate molten steel. However, the casting process of the rectangular billet and the bloom can cause the phenomenon of pulling-off with insufficient hook head strength and also can cause the phenomenon of steel leakage caused by molten steel entering a crystallizer after the molten steel enters the crystallizer.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides an auxiliary device for continuous casting rectangular billet and bloom casting.
In order to achieve the purpose, the utility model adopts the following technical scheme that the device comprises a cuboid frame; the rectangular frame comprises an upper rectangular frame and a lower rectangular frame which are arranged in parallel: an upper rectangular frame and a lower rectangular frame; the upper rectangular frame and the lower rectangular frame are connected through a plurality of supporting rods; and a dovetail groove positioning hook for fixing a dummy bar head dovetail groove is arranged below the lower rectangular frame and fixedly connected with the lower rectangular frame.
Furthermore, the dovetail groove positioning hook comprises two L-shaped connecting parts arranged in parallel and a horizontal rod part arranged between the two L-shaped connecting parts; the head ends of the two L-shaped connecting parts are respectively connected with one long edge of the rectangular frame, the first end of the horizontal rod part is connected with the tail end of one L-shaped connecting part, and the second end of the horizontal rod part is connected with the tail end of the other L-shaped connecting part.
And further, when the dovetail groove positioning hook is hooked with the dovetail groove of the dummy bar head, the lower rectangular frame of the cuboid frame is attached to the top surface of the dummy bar head.
Furthermore, a space surrounded by the cuboid frame and the top of the dummy bar head is filled with cold materials, and the cold materials are also filled between the dovetail groove positioning hook and the dovetail groove of the dummy bar head.
Compared with the prior art, the utility model has the beneficial effects.
According to the utility model, the dummy ingot is packaged by the casting auxiliary device, after the molten steel flows into the crystallizer, the molten steel can flow into the dovetail groove of the dummy ingot head, and the cold iron placed in the dovetail groove is rapidly solidified to ensure that the hook head formed in the dovetail groove has enough tensile strength. And when the molten steel continuously flows into the rectangular frame, the small materials packaged on the plane and the long cold materials on the four sides can be quickly combined with the molten steel and solidified, and a cooling connecting frame is formed in the solidification process. And the molten steel is cooled and formed by continuous contact of the molten steel and a cold charge in the process of continuously injecting the molten steel. The phenomenon of molten steel bridging caused by scattered flow in the early stage of casting is avoided, and the casting success rate of the continuous casting tundish can be stably improved.
Drawings
The utility model is further described with reference to the following figures and detailed description. The scope of the utility model is not limited to the following expressions.
Fig. 1 is a schematic perspective view of the whole casting auxiliary device.
FIG. 2 is a schematic view of the inverted casting assisting device.
Fig. 3 is a schematic view of a dummy head structure.
FIG. 4 is a first schematic view of the connection of the casting auxiliary device and the dummy bar head.
FIG. 5 is a second schematic view of the connection between the casting assist device and the dummy bar head.
FIG. 6 is a schematic view of a cooling material after the casting auxiliary device is connected with the dummy bar head.
In the figure, 1 is an upper rectangular frame, 2 is a lower rectangular frame, 3 is a dovetail groove positioning hook, 4 is a support rod, 5 is an L-shaped connecting part, 6 is a horizontal rod part, 7 is a dummy head, 8 is a dovetail groove, 9 is an upper boss, 10 is a bar material cooling material, and 11 is a pin material cooling material.
Detailed Description
As shown in fig. 1-6, particular embodiments include a rectangular parallelepiped frame; the cuboid frame comprises an upper rectangular frame and a lower rectangular frame which are arranged in parallel: an upper rectangular frame 1 and a lower rectangular frame 2; the upper rectangular frame and the lower rectangular frame are connected through a plurality of support rods 4; a dovetail groove positioning hook 3 used for fixing a dummy bar head dovetail groove 8 is arranged below the lower rectangular frame 2, and the dovetail groove positioning hook 3 is fixedly connected with the lower rectangular frame 2. The upper rectangular frame 1, the lower rectangular frame 2 and the plurality of support rods 4 therebetween form a rectangular parallelepiped frame, wherein the support rods 4 serve as four side rods of the rectangular parallelepiped frame. The cuboid frame and the dovetail groove positioning hooks 3 are all made of round steel, and the joints of the cuboid frame are all welded. According to the utility model, when molten steel flows into the dovetail groove 8, the cold burden can be rapidly solidified, a cooling connecting frame is formed in the solidification process, and the molten steel and the cold burden can be continuously contacted for cooling and forming in the continuous molten steel injection process.
Preferably, the dovetail groove positioning hook 3 comprises two L-shaped connecting parts 5 arranged in parallel and a horizontal rod part 6 arranged between the two L-shaped connecting parts 5; the head ends of the two L-shaped connecting parts 5 are respectively connected with one long edge of the rectangular frame, the first end of the horizontal rod part 6 is connected with the tail end of one L-shaped connecting part 5, and the second end of the horizontal rod part 6 is connected with the tail end of the other L-shaped connecting part 5. The L-shaped connecting portion 5 may have a right-angle L-shaped structure or a hook-shaped structure, as long as it can be hooked into the upper boss 9 of the dovetail groove 8.
Preferably, when the dovetail groove positioning hook 3 is hooked with the dovetail groove 8 of the dummy bar head 7, specifically, the positioning hook is hooked on the upper boss 9 of the dovetail groove 8. And the lower rectangular frame 2 of the cuboid frame is attached to the top surface of the dummy bar head 7. A space surrounded by the cuboid frame and the top of the dummy bar head 7 is filled with a bar cold material 10, and a bar cold material 10 is also filled between the dovetail groove positioning hook 3 and the dovetail groove 8 of the dummy bar head 7. The bar cold charge 10 comprises a long cold charge and a pin cold charge 11.
The utility model adopts the simultaneous sitting principle: the dummy bar head 7 is firstly placed in the crystallizer, then the casting auxiliary device is placed in the crystallizer, and the dovetail groove positioning hook 3 of the casting auxiliary device is placed in the dovetail groove of the dummy bar head 7. Then a certain amount of chilling blocks (including long chilling blocks and pin chilling blocks 11) are placed on the inner side of the cuboid frame of the casting auxiliary device and the dovetail groove positioning hooks 3 according to the requirements of the drawing. The dummy ingot is packaged by the casting auxiliary device, the molten steel flows into the dovetail groove 8 of the dummy ingot head 7 after flowing into the crystallizer, and the hook head formed in the dovetail groove has enough tensile strength by the rapid solidification of the chilling block arranged in the dovetail groove 8. And when the molten steel continuously flows into the rectangular frame, the small materials packaged on the plane and the long cold materials on the four sides can be quickly combined with the molten steel and solidified, and a cooling connecting frame is formed in the solidification process. And the molten steel is cooled and formed by continuous contact of the molten steel and a cold charge in the process of continuously injecting the molten steel.
1. The method is simple to operate, and can be manufactured according to the section surface of the produced steel billet according to the drawing.
2. The casting auxiliary device adopts integral welding, so that the manufacturing time is saved, and the manufacturing is easy. The production cost is reduced, the manufacturing process can use waste materials and leftover materials for welding and manufacturing, and raw materials are saved.
3. The auxiliary device for casting is utilized to realize packaging, and the success rate of casting is ensured.
It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the utility model.
Claims (3)
1. A continuous casting rectangular billet and bloom casting auxiliary device comprises a rectangular frame; the rectangular frame comprises an upper rectangular frame and a lower rectangular frame which are arranged in parallel: an upper rectangular frame and a lower rectangular frame; the upper rectangular frame and the lower rectangular frame are connected through a plurality of supporting rods;
and a dovetail groove positioning hook for fixing a dummy bar head dovetail groove is arranged below the lower rectangular frame and fixedly connected with the lower rectangular frame.
2. The continuous casting rectangular billet and bloom casting auxiliary device according to claim 1, wherein: the dovetail groove positioning hook comprises two L-shaped connecting parts arranged in parallel and a horizontal rod part arranged between the two L-shaped connecting parts; the head ends of the two L-shaped connecting parts are respectively connected with one long edge of the rectangular frame, the first end of the horizontal rod part is connected with the tail end of one L-shaped connecting part, and the second end of the horizontal rod part is connected with the tail end of the other L-shaped connecting part.
3. The continuous casting rectangular billet and bloom casting auxiliary device according to claim 1, wherein: when the dovetail groove positioning hook is hooked with the dovetail groove of the dummy bar head, the lower rectangular frame of the cuboid frame is attached to the top surface of the dummy bar head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220396337.9U CN216858176U (en) | 2022-02-26 | 2022-02-26 | Continuous casting rectangular billet and bloom casting auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220396337.9U CN216858176U (en) | 2022-02-26 | 2022-02-26 | Continuous casting rectangular billet and bloom casting auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216858176U true CN216858176U (en) | 2022-07-01 |
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ID=82161932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220396337.9U Active CN216858176U (en) | 2022-02-26 | 2022-02-26 | Continuous casting rectangular billet and bloom casting auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216858176U (en) |
-
2022
- 2022-02-26 CN CN202220396337.9U patent/CN216858176U/en active Active
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