Combined type tundish current stabilizer

Abstract

The combined type tundish current stabilizer comprises a heat preservation shell, an inner shell is inserted into the heat preservation shell, and the heat preservation shell and the inner shell are attached to each other; a drainage pipe communicated with the inner shell is arranged at the bottom of the inner shell and used for discharging molten steel, and a drainage opening allowing the drainage pipe to penetrate through is formed in the bottom of the heat preservation shell; and a filter cartridge is detachably connected in the inner shell. According to the combined type tundish flow stabilizer, the filtering function is enhanced, the detachable filtering cylinder is arranged, and the filtering holes in the filtering cylinder can effectively filter molten steel slag in molten steel. The flow guide cover and the flow slowing cover at the bottom of the filter cartridge can disperse the molten steel falling into the filter cartridge, and the impact force of falling of the molten steel is relieved. The filter cartridge is detachably connected through the matching of the connecting plate and the inserting column, so that the filter cartridge can be conveniently detached to treat the internal molten steel slag. The heat insulation design is reasonable: the heat insulation shell is attached to the inner shell, so that the heat loss of molten steel can be effectively reduced.

Description

Technical Field

[0001] This application relates to the field of intermediate package current stabilizer technology, and in particular to a composite intermediate package current stabilizer. Background Technology

[0002] In the steel smelting process, the tundish is a key piece of equipment in the continuous casting process, playing a role in storing, distributing, and stabilizing the flow of molten steel. Traditional tundish flow stabilizers have a relatively simple structure, and their main functions are focused on stabilizing the flow rate of molten steel and reducing fluctuations in molten steel flow, but they are relatively lacking in the function of filtering molten steel.

[0003] Existing flow stabilizers are ineffective at removing impurities and slag from molten steel, thus affecting the quality of the final product. Furthermore, some flow stabilizers have flawed internal designs, resulting in uneven flow of molten steel within the stabilizer, which can easily generate localized eddies and impacts, further hindering the flow stabilization effect. Summary of the Invention

[0004] The purpose of this application is to provide a composite tundish flow stabilizer that has a structure for filtering molten steel slag and a flow guiding structure in order to solve the above problems.

[0005] This application achieves the above objectives through the following technical solutions:

[0006] A composite tundish flow stabilizer includes: an insulation shell, an inner shell inserted inside the insulation shell, and the insulation shell and the inner shell being fitted together; a drain pipe connected to the bottom of the inner shell for discharging molten steel, and a drain outlet through which the drain pipe passes at the bottom of the insulation shell; a filter cylinder detachably connected inside the inner shell, with a pre-set gap between the inner shell and the filter cylinder, and filter holes for filtering molten steel provided on the outer wall of the filter cylinder.

[0007] Furthermore, the bottom of the filter cylinder is provided with a raised flow guide shroud, which is conical in shape. A flow-slowing shroud is provided on the top of the flow guide shroud, and flow guide strips that can guide the molten steel are provided on the surface of the flow guide shroud.

[0008] Furthermore, the surface of the flow shroud is arc-shaped and smoothly transitions at the connection with the flow guide shroud.

[0009] Furthermore, the filter cartridge is provided with a support foot that can support its bottom, and the support foot is in contact with the bottom of the inner shell.

[0010] Furthermore, it also includes at least two lifting rings, which are screwed to the top of the insulation shell by a screw, with one end of the screw fixedly connected to the lifting ring.

[0011] Furthermore, it also includes multiple insertion posts, which are fixedly connected to the top of the insulation shell. The connecting plate has insertion holes for the insertion posts to pass through, and the connecting plate is fixedly connected to the top of the filter cylinder.

[0012] Furthermore, the filter holes are one or more combinations of circular, square, or elliptical shapes, and the diameter of the filter holes is set according to the requirements for molten steel filtration.

[0013] Furthermore, the guide strips are distributed circumferentially along the guide shroud to guide the flow of molten steel.

[0014] Compared to existing technologies, this application offers enhanced filtration: The composite tundish flow stabilizer features a detachable filter cylinder with filter holes that effectively filter slag from the molten steel. Improved flow stabilization: The guide shield and flow buffer at the bottom of the filter cylinder disperse the molten steel falling into the cylinder, mitigating the impact of the falling steel. Easier cleaning and maintenance: The filter cylinder is detachably connected via a connecting plate and insert, facilitating removal of the filter cylinder to handle internal slag. Reasonable insulation design: The close fit between the insulation shell and inner shell effectively reduces heat loss from the molten steel. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present application and form part of the specification. They are used together with the following detailed description to explain the present application, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the structure of this application;

[0017] Figure 2 This is a schematic cross-sectional view of the fairing structure of this application;

[0018] Figure 3 This is a schematic diagram of the flow guide bar structure of this application;

[0019] Figure 4 This is a schematic diagram of the lifting ring structure of this application.

[0020] The annotations in the attached figures are explained as follows:

[0021] 1. Insulation shell; 2. Inner shell; 3. Filter cylinder; 4. Filter hole; 5. Flow guide; 6. Flow buffer; 7. Flow guide strip; 8. Drain outlet; 9. Drain pipe; 10. Support leg; 11. Screw; 12. Lifting ring; 13. Insert post; 14. Connecting plate; 15. Insertion hole. Detailed Implementation

[0022] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0023] In the description of this application, it should be understood that the terms "upper," "lower," "front," "back," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 This description is provided for the convenience of describing this application and for the purpose of simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0024] like Figure 1-4 As shown, a composite tundish flow stabilizer includes: an insulation shell 1, an inner shell 2 inserted inside the insulation shell 1, and the insulation shell 1 and the inner shell 2 are fitted together; a drain pipe 9 connected to the bottom of the inner shell 2 is provided for discharging molten steel, and a drain outlet 8 for the drain pipe 9 to pass through is provided at the bottom of the insulation shell 1; a filter cylinder 3 is detachably connected inside the inner shell 2, a gap is preset between the inner shell 2 and the filter cylinder 3, and filter holes 4 for filtering molten steel are provided on the outer wall of the filter cylinder 3.

[0025] Specifically, the insulation shell 1, the inner shell 2, and the filter cylinder 3 are all cylindrical, which can increase the flow rate of molten steel. The drain pipe 9 passes through the drain port 8 to prevent molten steel from flowing into the gap between the two. The gap between the inner shell 2 and the filter cylinder 3 allows molten steel to flow. The filter hole 4 filters the steel slag in the molten steel.

[0026] like Figure 2 As shown, the bottom of the filter cylinder 3 is provided with a raised flow guide shroud 5, which is conical in shape. The top of the flow guide shroud 5 is provided with a flow slowing shroud 6, and the surface of the flow guide shroud 5 is provided with flow guide strips 7 that can guide the molten steel.

[0027] Specifically, the volume of the conical guide shroud 5 gradually increases from top to bottom, which can buffer the impact of molten steel. The flow stabilizing shroud 6 works in conjunction with the guide shroud 5 to stabilize the flow.

[0028] Furthermore, the surface of the flow shroud 6 is arc-shaped and smoothly transitions at the connection with the flow guide shroud 5 to allow the molten steel to flow smoothly.

[0029] Furthermore, the filter cartridge 3 is provided with a support leg 10 that can support its bottom, and the support leg 10 is in contact with the bottom of the inner shell 2.

[0030] like Figure 4 As shown, it also includes at least two lifting rings 12, which are screwed to the top of the insulation shell 1 by screws 11, and one end of the screws 11 is fixedly connected to the lifting rings 12.

[0031] Specifically, there can be multiple lifting rings 12, which can be connected by equipment such as overhead cranes to facilitate transportation.

[0032] like Figure 2-3As shown, it also includes multiple insertion posts 13, which are fixedly connected to the top of the insulation shell 1. The connecting plate 14 has insertion holes 15 for the insertion posts 13 to pass through, and the connecting plate 14 is fixedly connected to the top of the filter cylinder 3.

[0033] Furthermore, the filter hole 4 is one or more combinations of circular, square, or elliptical shapes, and the diameter of the filter hole 4 is set according to the requirements of molten steel filtration, and is set to be able to filter molten steel.

[0034] like Figure 3 As shown, the guide strips 7 are distributed circumferentially along the guide shield 5 to guide the flow of molten steel.

[0035] In the above structure, the flow stabilizer is hoisted by the connecting ring 12. When molten steel is poured into the filter cylinder 3, the flow damper 6 and the flow guide 5 can disperse the molten steel falling into the filter cylinder 3, reducing the impact force of the falling molten steel. The flow guide 7 can divert the molten steel, allowing it to diffuse and enabling the filter holes 4 on the filter cylinder 3 to filter the molten steel. The molten steel slag remains in the filter cylinder 3. The molten steel passes through the filter holes 4 into the inner shell 2 and is discharged through the drain pipe 9, achieving both flow stabilization and molten steel filtration. By lifting the filter cylinder 3, the connecting plate 14 is lifted synchronously, and the connecting plate 14 is separated from the insert 13, making it easy to disassemble the filter cylinder 3 to handle the molten steel slag inside the filter cylinder 3.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this application. Various changes and modifications can be made to this application without departing from the spirit and scope thereof, and all such changes and modifications fall within the scope of this application as claimed. The scope of protection of this application is defined by the appended claims and their equivalents.

Claims

1. A combined tundish flow regulator, characterized by, Include: The heat preservation shell (1) is inserted into the inner shell (2), and the heat preservation shell (1) and the inner shell (2) are attached; the bottom of the inner shell (2) is provided with a drain pipe (9) communicated therewith for discharging molten steel, and the bottom of the heat preservation shell (1) is provided with a drain port (8) for the drain pipe (9) to pass through; the inner shell (2) is detachably connected with the filter cartridge (3), and the inner shell (2) and the filter cartridge (3) are provided with a gap; the filter cartridge (3) is provided with a filter hole (4) capable of filtering molten steel on the outer wall.

2. The combined tundish flow regulator according to claim 1, characterized in that: The bottom of the filter cartridge (3) is provided with a convex flow guide cover (5), the flow guide cover (5) is conical, the top of the flow guide cover (5) is provided with a flow buffer cover (6), and the surface of the flow guide cover (5) is provided with a flow guide strip (7) capable of guiding molten steel.

3. A composite type flow stabilizer for a tundish according to claim 2, characterized in that: The surface of the flow buffer cover (6) is arc-shaped, and the connection with the flow guide cover (5) is smoothly transitioned.

4. The combined type flow regulator for tundish according to claim 1, wherein: The filter cartridge (3) is provided with a supporting leg (10) capable of supporting the bottom thereof, and the supporting leg (10) is in contact with the bottom of the inner shell (2).

5. The combined tundish flow regulator according to claim 1, characterized in that: It also includes at least two lifting rings (12), which are screwed with the top of the heat preservation shell (1) through a screw rod (11), one end of the screw rod (11) is fixedly connected with the lifting ring (12).

6. The combined type flow regulator for tundish according to claim 1, characterized in that: It also includes a plurality of insertion columns (13), which are fixedly connected with the top of the heat preservation shell (1), and the connecting plate (14) is provided with an insertion hole (15) for the insertion column (13) to pass through, and the connecting plate (14) is fixedly connected with the top of the filter cartridge (3).

7. The combined tundish flow regulator according to claim 1, characterized in that: The filter hole (4) is one or a combination of circular, square or oval, and the pore size of the filter hole (4) is set according to the requirement of molten steel filtration.

8. The combined type flow regulator for tundish according to claim 2, wherein: The flow guide strip (7) is distributed along the circumference of the flow guide cover (5) to guide the flow of molten steel.

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