Continuous casting tundish current stabilizer

Abstract

The utility model relates to the technical field of current stabilizers, in particular to a continuous casting tundish current stabilizer which comprises a current stabilizer body, a base integrally formed with the current stabilizer body is arranged on the bottom face of the current stabilizer body, a second current stabilizing cavity is formed in the current stabilizer body, and a plurality of overflow grooves are formed in the top face of the current stabilizer body. A filling groove is formed in the bottom surface of the base, and two filling holes communicated with the filling groove are formed in the top surface of the base; a flow stabilizing assembly coaxial with the flow stabilizer body is arranged in the flow stabilizer body. The concrete in the filling groove supports and fixes the current stabilizer after being solidified, the contact area between the base and the concrete is increased through the arrangement of the reinforcing rod, so that the installation stability of the current stabilizer is improved, meanwhile, through the arrangement of the through hole, the concrete in the filling groove penetrates through the through hole to be fixedly connected with the tundish, and the installation stability of the current stabilizer is improved. And the connection stability between the concrete and the tundish is improved, so that the installation stability of the current stabilizer is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flow stabilizers, in particular to a continuous casting tundish flow stabilizer. Background Art

[0002] The continuous casting tundish flow stabilizer is a device used to control the metal flow during the continuous casting process. It is installed in the impact zone of the continuous casting tundish to adjust the metal flow and stabilize the metal flow, avoid metal retention or fluctuation during the flow process, ensure uniform metal flow during the continuous casting process, and ensure the quality and shape of the ingot.

[0003] In the prior art, there is a patent with application number CN202320737421.7, which provides a flow stabilizer for a continuous casting tundish, including a base, a flow stabilizer body provided on the top surface of the base, a cavity portion, a transition arc portion and an opening portion provided inside the flow stabilizer body from bottom to top, a plurality of flow-guiding splash-proof hemispheres connected to the bottom surface of the cavity portion, a plurality of flow-guiding holes are provided in the wall of the cavity portion to communicate with the outside of the flow stabilizer body, and the flow-guiding holes are provided at an angle. The device can make the molten steel remaining in the flow-guiding holes after use flow to the outside of the flow stabilizer body along the inclined direction by providing the inclined flow-guiding holes, thereby avoiding the problem of decreased flow efficiency in the flow-guiding holes caused by cooling and accumulation of molten steel in the flow-guiding holes.

[0004] However, the above patent still has the following deficiencies during use:

[0005] At present, when installing the flow stabilizer, the alkaline dry material is usually spread flat on the bottom of the ladle, the tundish mold is placed and aligned, and the alkaline dry vibrating material is poured in to vibrate and bake it into shape. After the tundish mold is pulled out for a specified time, the flow stabilizer mold is removed, and the flow stabilizer is placed in the reserved position, and the dry material is evenly filled around the lower edge of the flow stabilizer. At this time, since the flow stabilizer and the dry material working lining are not formed as a whole, the contact surface strength between the flow stabilizer and the dry material at the bottom of the ladle is low, which may cause the drill steel at the bottom of the flow stabilizer to float due to the erosion of molten steel during the steel pouring process. Utility Model Content

[0006] The utility model aims to provide a flow stabilizer for a continuous casting tundish to solve the problems raised in the above-mentioned background technology.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] A flow stabilizer for a continuous casting tundish, comprising a flow stabilizer body, a base formed integrally with the flow stabilizer body is arranged on the bottom surface of the flow stabilizer body, a second flow stabilization cavity is arranged inside the flow stabilizer body, the side wall of the second flow stabilization cavity is arc-shaped, a plurality of overflow grooves are arranged on the top surface of the flow stabilizer body, and the plurality of overflow grooves are distributed in a circumferential array about the axis of the flow stabilizer body;

[0009] The bottom surface of the base is provided with a filling groove, and the top surface of the base is provided with two filling holes which penetrate the filling groove;

[0010] The stabilizer body is provided with a flow stabilizing component coaxial with the stabilizer body.

[0011] Furthermore, a plurality of evenly distributed reinforcement rods are fixedly connected to the inner bottom surface of the filling tank, and a disc is fixedly mounted on the bottom surface of the reinforcement rods.

[0012] Furthermore, a plurality of through holes communicating with the filling grooves are formed on the periphery of the base.

[0013] Further, the flow stabilizing assembly includes a flow stabilizing tube arranged in the flow stabilizing body, the flow stabilizing tube is coaxial with the flow stabilizing body, a feeding funnel is fixedly connected to the top of the flow stabilizing body, the top of the feeding funnel is located outside the flow stabilizing body, and the diameter of the top of the feeding funnel is larger than the diameter of the top opening of the flow stabilizing body and smaller than the outer diameter of the flow stabilizing body;

[0014] The lower part of the flow stabilizing cylinder is the first flow stabilizing chamber, the side wall of the first flow stabilizing chamber is arc-shaped, and an inclined through groove is opened in the upper middle part of the side wall of the first flow stabilizing chamber, the second flow stabilizing chamber of the through groove part is connected with the first flow stabilizing chamber, and the upper part of the flow stabilizing cylinder is a conical guide groove connected with the first flow stabilizing chamber, and the conical guide groove is connected with the bottom end of the feeding funnel.

[0015] Furthermore, an anti-impact block is provided on the inner bottom surface of the first flow stabilizing chamber, and the anti-impact block is a conical structure.

[0016] Furthermore, two lifting rings symmetrically arranged about the axis of the flow stabilizer body are fixedly connected to the top surface of the flow stabilizer body.

[0017] Beneficial effects of the utility model:

[0018] 1. The concrete in the filling groove supports and fixes the flow stabilizer after solidification. The contact area between the base and the concrete is increased by setting the reinforcement rod, thereby improving the installation stability of the flow stabilizer. At the same time, the concrete in the filling groove is fixedly connected to the middle bag through the through hole by setting the through hole, thereby improving the connection stability between the concrete and the middle bag, thereby further improving the installation stability of the flow stabilizer.

[0019] 2. The utility model can perform secondary flow stabilization on molten steel through the setting of the flow stabilization component, thereby improving the flow stabilization effect on the molten steel, reducing the turbulence and eddy current of the molten steel, making the molten steel flow more smoothly in the tundish, helping to avoid gas inclusions and slag inclusions, and improving the quality of the molten steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0022] Figure 2 yes Figure 1 A three-dimensional schematic diagram from another angle;

[0023] Figure 3 It is a schematic diagram of the structure inside the main body of the flow stabilizer;

[0024] The reference numerals are as follows:

[0025] 1-base, 2-stabilizer body, 3-overflow groove, 4-hanging ring, 5-feeding funnel, 6-stabilizing flow tube, 7-filling groove, 8-filling hole, 9-through hole, 10-reinforcement rod, 11-first stabilizing flow chamber, 12-anti-impact block, 13-second stabilizing flow chamber, 14-through groove, 15-conical guide groove. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Embodiment 1:

[0028] See also Figures 1 to 3 In an embodiment of the utility model, a flow stabilizer for a continuous casting tundish includes a flow stabilizer body 2, a base 1 integrally formed with the flow stabilizer body 2 is arranged on the bottom surface of the flow stabilizer body 2, a second flow stabilization cavity 13 is arranged inside the flow stabilizer body 2, and the side wall of the second flow stabilization cavity 13 is arc-shaped, and a plurality of overflow grooves 3 are opened on the top surface of the flow stabilizer body 2, and the plurality of overflow grooves 3 are distributed in a circumferential array about the axis of the flow stabilizer body 2;

[0029] A filling groove 7 is formed on the bottom surface of the base 1, and two filling holes 8 are formed on the top surface of the base 1 and are connected to the filling groove 7;

[0030] A flow stabilizing component coaxial with the flow stabilizer body 2 is arranged in the flow stabilizer body 2 .

[0031] Furthermore, a plurality of evenly distributed reinforcement rods 10 are fixedly connected to the inner bottom surface of the filling groove 7 , and a disc is fixedly mounted on the bottom surface of the reinforcement rods 10 .

[0032] Furthermore, a plurality of through holes 9 penetrating the filling grooves 7 are formed on the periphery of the base 1 .

[0033] Furthermore, two hanging rings 4 symmetrically arranged about the axis of the flow stabilizer body 2 are fixedly connected to the top surface of the flow stabilizer body 2 .

[0034] When installing the current stabilizer provided by the utility model:

[0035] The base 1 is inserted into the reserved installation position of the impact area of ​​the tundish, and then concrete is filled into the filling groove 7 through the filling hole 8. During the process, whether the filling groove 7 is completely filled is judged by observing whether the concrete is removed from another filling hole 8. After the filling groove 7 is completely filled, the concrete in the filling groove 7 supports and fixes the flow stabilizer after solidification. The contact area between the base 1 and the concrete is increased by the provision of the reinforcement rod 10, thereby improving the installation stability of the flow stabilizer. At the same time, the concrete in the filling groove 7 is fixedly connected with the tundish through the through hole 9 through the through hole 9, thereby improving the connection stability between the concrete and the tundish, thereby further improving the installation stability of the flow stabilizer. Therefore, it can effectively prevent the flow stabilizer and the dry material working lining from being not integrally formed, resulting in low strength of the contact surface between the flow stabilizer and the dry material at the bottom of the ladle, which may cause the drill steel at the bottom of the flow stabilizer to float due to the erosion of molten steel during the steel pouring process, thereby improving the use stability of the flow stabilizer.

[0036] When the molten steel enters the flow stabilizer:

[0037] Move the ladle to the top of the flow stabilizing assembly. Then inject molten steel into the flow stabilizing assembly, and the molten steel in the flow stabilizing assembly enters the second flow stabilizing chamber 13 after being stabilized, and flows into the tundish through the overflow groove 3 at the bottom of the flow stabilizer body 2 after being further stabilized in the second flow stabilizing chamber 13.

[0038] Embodiment 2:

[0039] See also Figure 1 and Figure 3 On the basis of Example 1, the flow stabilizing assembly includes a flow stabilizing tube 6 disposed in the flow stabilizer body 2, the flow stabilizing tube 6 is coaxial with the flow stabilizer body 2, a feeding funnel 5 is fixedly connected to the top of the flow stabilizer body 2, the top of the feeding funnel 5 is located outside the flow stabilizer body 2, and the diameter of the top of the feeding funnel 5 is larger than the diameter of the top opening of the flow stabilizer body 2, and smaller than the outer diameter of the flow stabilizer body 2;

[0040] The lower part of the stabilizing tube 6 is the first stabilizing chamber 11, the side wall of the first stabilizing chamber 11 is arc-shaped, and an inclined through groove 14 is opened in the upper middle part of the side wall of the first stabilizing chamber 11, the through groove 14 connects the second stabilizing chamber 13 with the first stabilizing chamber 11, and the upper part of the stabilizing tube 6 is a conical guide groove 15 connected to the first stabilizing chamber 11, and the conical guide groove 15 is connected to the bottom end of the feeding funnel 5.

[0041] An anti-impact block 12 is disposed on the inner bottom surface of the first flow stabilization chamber 11 , and the anti-impact block 12 is a cone structure.

[0042] The molten steel poured from the ladle enters the conical guide groove 15 through the feeding funnel 5, and then enters the first steady flow chamber 11 along the conical guide groove 15. When entering the first steady flow chamber 11, it first contacts the anti-impact block 12, and is guided to the side wall direction of the first steady flow chamber 11 under the inclined guiding action of the anti-impact block 12, and then enters the second steady flow chamber 13 along the through groove 14 in the first steady flow chamber 11; the molten steel is guided and buffered by the setting of the anti-impact block 12, thereby enhancing the anti-impact ability of the bottom 6 and improving the service life of the flow stabilizer;

[0043] The inclined arrangement of the through groove 14 can prevent the molten steel from condensing in the through groove 14 and causing blockage of the through groove 14;

[0044] The top of the feeding funnel 5 blocks the gap between the flow stabilizer 6 and the top opening of the flow stabilizer body 2, thereby preventing the molten steel from entering the second flow stabilizer cavity 13 directly between the flow stabilizer 6 and the second flow stabilizer cavity 13 due to the molten steel not being completely above the flow stabilizer 6 at the beginning of pouring. Therefore, the setting of the feeding funnel 5 can improve the stability of the molten steel entering the flow stabilizer, ensuring that the molten steel can enter the second flow stabilizer cavity 13 for secondary flow stabilization after the initial flow stabilization of the flow stabilizer component, thereby improving the flow stabilization effect of the flow stabilizer, reducing the turbulence and eddy current of the molten steel, making the molten steel flow more smoothly in the ladle, helping to avoid gas inclusions and slag inclusions, and improving the quality of the molten steel.

[0045] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A flow stabilizer for a continuous casting tundish, comprising a flow stabilizer body (2), the bottom surface of the flow stabilizer body (2) being provided with a base (1) integrally formed with the flow stabilizer body (2), characterized in that: A second flow stabilization cavity (13) is arranged inside the flow stabilizer body (2), the side wall of the second flow stabilization cavity (13) is arc-shaped, a plurality of overflow grooves (3) are opened on the top surface of the flow stabilizer body (2), and the plurality of overflow grooves (3) are distributed in an array circumferentially with respect to the axis of the flow stabilizer body (2); The bottom surface of the base (1) is provided with a filling groove (7), and the top surface of the base (1) is provided with two filling holes (8) which are connected with the filling groove (7); The flow stabilizer body (2) is provided with a flow stabilization component coaxial with the flow stabilizer body (2).

2. A continuous casting tundish flow stabilizer according to claim 1, characterized in that: A plurality of evenly distributed reinforcement rods (10) are fixedly connected to the inner bottom surface of the filling groove (7), and a disc is fixedly mounted on the bottom surface of the reinforcement rod (10).

3. The continuous casting tundish flow stabilizer according to claim 1, characterized in that: The periphery of the base (1) is provided with a plurality of through holes (9) which are connected to the filling grooves (7).

4. A continuous casting tundish flow stabilizer according to claim 1, characterized in that: The flow stabilizing assembly comprises a flow stabilizing tube (6) arranged in the flow stabilizing body (2), the flow stabilizing tube (6) is coaxial with the flow stabilizing body (2), the top end of the flow stabilizing body (2) is fixedly connected with a feeding funnel (5), the top end of the feeding funnel (5) is located outside the flow stabilizing body (2), the diameter of the top end of the feeding funnel (5) is larger than the diameter of the top end opening of the flow stabilizing body (2) and smaller than the outer diameter of the flow stabilizing body (2); The lower part of the flow stabilizing tube (6) is a first flow stabilizing chamber (11), the side wall of the first flow stabilizing chamber (11) is arc-shaped, and an inclined through groove (14) is provided at the upper middle part of the side wall of the first flow stabilizing chamber (11), and the through groove (14) connects the second flow stabilizing chamber (13) with the first flow stabilizing chamber (11), and the upper part of the flow stabilizing tube (6) is a conical guide groove (15) connected to the first flow stabilizing chamber (11), and the conical guide groove (15) is connected to the bottom end of the feeding funnel (5).

5. A continuous casting tundish flow stabilizer according to claim 4, characterized in that: An anti-impact block (12) is provided on the inner bottom surface of the first flow stabilization chamber (11), and the anti-impact block (12) is a conical structure.

6. The continuous casting tundish flow stabilizer according to claim 1, characterized in that: Two suspension rings (4) symmetrically arranged about the axis of the flow stabilizer body (2) are fixedly connected to the top surface of the flow stabilizer body (2).

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