Horizontal continuous casting tundish for preventing secondary oxidation of molten steel

Abstract

The utility model relates to the technical field of continuous casting tundishes, and discloses a horizontal continuous casting tundish capable of preventing secondary oxidation of molten steel. The horizontal continuous casting tundish for preventing secondary oxidation of the molten steel comprises a tundish body, a connecting ladle is fixedly installed on the inner wall of the tundish body, inclined blocks are fixedly installed on the two sides of the inner wall of the tundish body, a metal rod is fixedly installed on the lower portion of one side of each inclined block, and a telescopic rod is movably connected to the upper portion of each metal rod. And a supporting rod is fixedly mounted on one side of the upper portion of the telescopic rod, a mounting sleeve is fixedly mounted on one side of the supporting rod, an argon conveying pipe is fixedly mounted on the inner wall of the mounting sleeve in a penetrating mode, and one end of the argon conveying pipe is movably connected to the inner wall of the connecting bag. The height of the argon conveying pipe can be conveniently adjusted for use, adjustment and use can be conveniently conducted according to the content of molten steel in the tundish structure, the use effect of the tundish secondary oxidation preventing structure can be conveniently improved, and normal work and use of continuous casting are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of continuous casting tundishes, in particular to a horizontal continuous casting tundish for preventing secondary oxidation of molten steel. Background Art

[0002] In steelmaking production, continuous casting is the process of solidifying molten steel into ingots. During continuous casting, the ladle is first placed on a turntable, then rotated to one side of the tundish, the long water inlet of the ladle is put on, the slide plate is opened, and the molten steel flows into the tundish along the long water inlet of the ladle. After the diversion effect of the tundish, the molten steel flows into the crystallizer along the submerged water inlet. In this process, the molten steel will undergo secondary oxidation when it comes into contact with the air. The secondary oxidation of the molten steel by the air increases the content of inclusions in the molten steel, which leads to flocculence at the tundish water inlet and even causes the continuous casting machine to stop casting.

[0003] The existing Chinese utility model patent with reference announcement number: CN213619653U discloses a device to prevent secondary oxidation of molten steel in a tundish. The argon delivery pipe of the utility model is horizontally placed on the tundish cover, the rear end of the metal hose is connected to the rod of the argon delivery pipe, the front end of the metal hose is connected to the oxygen blowing pipe, the front part of the oxygen blowing pipe is bent vertically downward, the front end of the oxygen blowing pipe extends into the tundish, and the rear end of the argon delivery pipe is connected to the argon pipeline. The utility model can effectively replace and empty the air in the tundish with argon in the early stage of pouring, form an argon layer on the upper part of the molten steel surface in the tundish, isolate the air from the molten steel, effectively prevent the secondary oxidation of the molten steel, thereby improving the purity of the molten steel, reducing the content of inclusions in the steel and the risk of pouring and stopping, and ensuring the normal pouring of continuous casting. The utility model has a simple structure and can be quickly installed and disassembled, which is convenient for operators to use.

[0004] In order to prevent secondary oxidation of the tundish, an argon gas delivery pipe structure is properly installed in the tundish to isolate the air and molten steel. However, the liquid capacity in the tundish varies each time the tundish is used, which makes it inconvenient to adjust the argon gas delivery pipe structure in the tundish, resulting in reduced effectiveness of the structure to prevent secondary oxidation of the tundish, reduced purity of the molten steel, and affected normal work and use of continuous casting. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a horizontal continuous casting tundish for preventing secondary oxidation of molten steel, which has the advantages of facilitating the movement and use of an argon gas delivery pipe in the tundish and improving the normal working of continuous casting, thereby solving the above-mentioned technical problems.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: the horizontal continuous casting tundish for preventing secondary oxidation of molten steel comprises: an tundish body for continuous casting, a connecting bag for storing molten steel fixedly installed on the inner wall of the tundish body, inclined blocks for installation and cooperation are fixedly installed on both sides of the inner wall of the tundish body, a metal rod for adjustment is fixedly installed below one side of the inclined block, a telescopic rod for adjustment is movably connected above the metal rod, a support rod for use with an installation sleeve is fixedly installed on one side above the telescopic rod, a mounting sleeve for installing an argon delivery pipe is fixedly installed on one side of the support rod, an argon delivery pipe for argon delivery is fixedly installed through the inner wall of the mounting sleeve, and one end of the argon delivery pipe is movably connected to the inner wall of the connecting bag.

[0009] As an optimal technical solution of the utility model, openings are fixedly installed on both sides of the connection package, and tilting blocks are fixedly installed on both sides of the inner wall of the opening; two tilting blocks are provided, so that the tilting blocks are installed at the opening structure of the inner wall of the connection package for coordinated use.

[0010] As a preferred technical solution of the utility model, a clamping frame is fixedly installed above the tilting block, and the lower part of the clamping frame is fixedly installed on the upper outer surface of the intermediate package; the clamping frame increases the stability of the installation and use of the tilting block.

[0011] As a preferred technical solution of the utility model, a telescopic column is fixedly installed on the inner wall of the metal rod, the upper end of the telescopic column is movably connected with the telescopic rod, and a sealing gasket is fixedly installed on one side of the telescopic rod; the sealing gasket fills the gap between the telescopic rod and the tilting block.

[0012] As the preferred technical solution of the utility model, one side of the sealing gasket is fixedly installed on the upper side of the inclined block, one side of the metal rod is fixedly installed with a sealing block, and one side of the sealing block is fixedly penetrated with a through hole; the sealing block uses the opening sealing performance.

[0013] As a preferred technical solution of the utility model, a support rod is movably installed through the inner wall of the through hole, and a telescopic rod is movably installed on one side of the sealing block; the through hole penetrates the support block and is connected to the inner wall of the connection bag for coordinated use.

[0014] As a preferred technical solution of the utility model, a sealing sleeve is fixedly installed on the inner wall of the intermediate package, grooves are fixedly installed on both sides of the outer surface of the sealing sleeve, and extension pieces are fixedly installed on both sides of the inner wall of the sealing sleeve; the extension piece is movably connected to one side of the sealing block, and the groove is movably connected to one side of the clamping frame for use in conjunction with

[0015] Compared with the prior art, the utility model provides a horizontal continuous casting tundish for preventing secondary oxidation of molten steel, which has the following beneficial effects:

[0016] The utility model installs the connecting bag on the inner wall of the tundish, and both ends of the connecting bag are provided with opening structures, so that the tilting blocks are installed on both sides of the inner wall of the tundish, and the tilting blocks are used with metal rods and telescopic rods. One side above the telescopic rod is fixedly connected to the support rod, and one end of the support rod is fixedly connected to the installation sleeve. The inner wall of the installation sleeve is used to install the argon gas delivery pipe, so that argon gas can be injected into the internal structure of the tundish to avoid secondary oxidation of molten steel in the tundish, which is convenient for reducing the degree of secondary oxidation of molten steel and improving the purity of the ingot. Furthermore, the metal rod and the telescopic rod are used to support the argon gas delivery pipe, which is convenient for adjusting the height of the argon gas delivery pipe and adjusting it according to the content of molten steel in the tundish structure, so as to improve the use effect of the structure for preventing secondary oxidation of the tundish and facilitate the normal operation of continuous casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the installation of the connection package of the utility model;

[0018] Figure 2 It is an overall schematic diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the tilting block of the utility model;

[0020] Figure 4 This is a schematic diagram of the sealing block of the utility model;

[0021] Figure 5 It is a schematic diagram of the sealing sleeve of the utility model.

[0022] Among them: 1. intermediate package; 2. connecting package; 21. opening; 3. tilting block; 31. clamping frame; 32. metal rod; 33. telescopic column; 34. telescopic rod; 35. sealing gasket; 36. support rod; 37. mounting sleeve; 38. argon gas delivery pipe; 4. sealing block; 41. through hole; 5. sealing sleeve; 51. groove; 52. extension piece. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0024] In the description of the present invention, unless otherwise specified, "multiple" means two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Combined with Figure 1-Figure 5 In the present embodiment, the horizontal continuous casting tundish for preventing secondary oxidation of molten steel comprises: an tundish body 1, a connecting bag 2 is fixedly installed on the inner wall of the tundish body 1, inclined blocks 3 are fixedly installed on both sides of the inner wall of the tundish body 1, a metal rod 32 is fixedly installed on the lower side of one side of the inclined block 3, a telescopic rod 34 is movably connected to the upper part of the metal rod 32, a support rod 36 is fixedly installed on the upper side of the telescopic rod 34, a mounting sleeve 37 is fixedly installed on one side of the support rod 36, an argon gas delivery pipe 38 is fixedly installed through the inner wall of the mounting sleeve 37, and one end of the argon gas delivery pipe 38 is movably connected to the inner wall of the connecting bag 2.

[0027] Specifically, the inner wall of the intermediate ladle 1 is connected to the connecting ladle 2, and inclined blocks 3 are installed on both sides of the intermediate ladle 1. A metal rod 32 and a telescopic rod 34 structure are installed on one side of the inclined block 3. One side of the telescopic rod 34 is connected to a support rod 36. The support rod 36 is used with a mounting sleeve 37. The inner wall of the mounting sleeve 37 is used to penetrate and install an argon gas delivery pipe 38 structure, which is convenient for installing the argon gas delivery pipe 38 on the inner wall of the connecting ladle 2 for use, and for injecting argon into the continuous casting ladle structure for use, effectively preventing the secondary oxidation of molten steel in the continuous casting ladle, and facilitating the use of the horizontal continuous casting ladle for preventing the secondary oxidation of molten steel.

[0028] Openings 21 are fixedly installed through both sides of the connection package 2 , and inclined blocks 3 are fixedly installed on both sides of the inner wall of the opening 21 .

[0029] A clamping frame 31 is fixedly installed above the tilting block 3 , and a lower portion of the clamping frame 31 is fixedly installed on the upper outer surface of the intermediate package 1 .

[0030] A telescopic column 33 is fixedly mounted on the inner wall of the metal rod 32 , a telescopic rod 34 is movably connected to the upper end of the telescopic column 33 , and a sealing pad 35 is fixedly mounted on one side of the telescopic rod 34 .

[0031] One side of the sealing gasket 35 is fixedly mounted on the upper side of the tilting block 3 , one side of the metal rod 32 is fixedly mounted with a sealing block 4 , and one side of the sealing block 4 is fixedly penetrated with a through hole 41 .

[0032] Specifically, an opening 21 structure is provided on both sides of the connecting ladle 2, and the inner wall of the opening 21 is used for installing structures such as the tilting block 3 and the metal rod 32, thereby facilitating the coordinated use of the horizontal continuous casting ladle structure to prevent secondary oxidation of the molten steel. At the same time, a clamping frame 31 is installed above the tilting block 3, and the clamping frame 31 is connected above the continuous casting ladle structure to increase the stability of the installation and use of the argon delivery pipe 38.

[0033] A support rod 36 is movably installed through the inner wall of the through hole 41 , and a telescopic rod 34 is movably installed on one side of the sealing block 4 .

[0034] A sealing sleeve 5 is fixedly installed on the inner wall of the intermediate package 1 , grooves 51 are fixedly installed on both sides of the outer surface of the sealing sleeve 5 , and extension pieces 52 are fixedly installed on both sides of the inner wall of the sealing sleeve 5 .

[0035] Specifically, by installing the sealing sleeve 5 above the intermediate ladle 1, the sealing sleeve 5 is installed on the outside of the connecting ladle 2 and the sealing gasket 35, so as to increase the sealing performance of the intermediate ladle 1 and the connecting ladle 2 and increase the use of the horizontal continuous casting ladle to prevent the secondary oxidation of molten steel.

[0036] Working principle: The inner wall of the continuous casting tundish 1 is connected with the connecting bag 2, and the opening 21 structure is installed on both sides of the connecting bag 2, so that the inclined blocks 3 are installed on both sides of the inner wall of the tundish 1, and the inclined blocks 3 and the openings 21 are aligned and used in coordination. One side of the inclined block 3 is connected with the metal rod 32, and the metal rod 32 is hollow inside, which is convenient for connecting with the telescopic rod 34. The upper side of the telescopic rod 34 is connected with the support rod 36, and the support rod 36 is equipped with a mounting sleeve 37. The mounting sleeve 37 is penetrated by an argon delivery pipe 38, and the argon delivery pipe 38 is correspondingly installed on the inner wall of the tundish connecting bag 2 for use. The argon delivery pipe 38 injects argon into the tundish connecting bag 2, effectively avoiding the middle The molten steel in the ladle structure undergoes secondary oxidation, which facilitates the use of the horizontal continuous casting tundish that prevents the secondary oxidation of the molten steel. Subsequently, a telescopic column 33 is installed on the inner wall of the metal rod 32, and the upper end of the telescopic column 33 is installed below the telescopic rod 34. The telescopic column 33 is height-adjustable for use, which makes it convenient to use the telescopic rod 34 for telescopic adjustment. The telescopic rod 34 is adjusted with the support rod 36, so that the argon delivery pipe 38 can be adjusted in the tundish connecting bag 2 for use, which is convenient for adjustment according to the amount of molten steel in the tundish structure, thereby conveniently improving the use of the horizontal continuous casting tundish that prevents the secondary oxidation of the molten steel, increasing the use of molten steel in the tundish, and facilitating the normal operation of continuous casting.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A horizontal continuous casting tundish for preventing secondary oxidation of molten steel, the horizontal continuous casting tundish for preventing secondary oxidation of molten steel comprising: The intermediate package (1) is characterized in that a connecting package (2) is fixedly installed on the inner wall of the intermediate package (1), inclined blocks (3) are fixedly installed on both sides of the inner wall of the intermediate package (1), a metal rod (32) is fixedly installed below one side of the inclined block (3), a telescopic rod (34) is movably connected above the metal rod (32), a support rod (36) is fixedly installed on one side above the telescopic rod (34), a mounting sleeve (37) is fixedly installed on one side of the support rod (36), an argon gas delivery pipe (38) is fixedly installed through the inner wall of the mounting sleeve (37), and one end of the argon gas delivery pipe (38) is movably connected to the inner wall of the connecting package (2).

2. The horizontal continuous casting tundish for preventing secondary oxidation of molten steel according to claim 1, characterized in that: Openings (21) are fixedly installed through both sides of the connection bag (2), and inclined blocks (3) are fixedly installed on both sides of the inner wall of the opening (21).

3. The horizontal continuous casting tundish for preventing secondary oxidation of molten steel according to claim 1, characterized in that: A clamping frame (31) is fixedly mounted above the tilting block (3), and a lower portion of the clamping frame (31) is fixedly mounted on the upper outer surface of the intermediate package (1).

4. The horizontal continuous casting tundish for preventing secondary oxidation of molten steel according to claim 1, characterized in that: A telescopic column (33) is fixedly mounted on the inner wall of the metal rod (32), a telescopic rod (34) is movably connected to the upper end of the telescopic column (33), and a sealing pad (35) is fixedly mounted on one side of the telescopic rod (34).

5. The horizontal continuous casting tundish for preventing secondary oxidation of molten steel according to claim 4, characterized in that: One side of the sealing pad (35) is fixedly mounted on the upper side of the tilting block (3), one side of the metal rod (32) is fixedly mounted with a sealing block (4), and one side of the sealing block (4) is fixedly penetrated with a through hole (41).

6. The horizontal continuous casting tundish for preventing secondary oxidation of molten steel according to claim 5, characterized in that: A support rod (36) is movably installed through the inner wall of the through hole (41), and a telescopic rod (34) is movably installed on one side of the sealing block (4).

7. The horizontal continuous casting tundish for preventing secondary oxidation of molten steel according to claim 1, characterized in that: A sealing sleeve (5) is fixedly mounted on the inner wall of the intermediate package (1), grooves (51) are fixedly mounted on both sides of the outer surface of the sealing sleeve (5), and extension pieces (52) are fixedly mounted on both sides of the inner wall of the sealing sleeve (5).

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