Steel ladle protection pouring sealing sleeve

Abstract

The utility model discloses a steel ladle protection pouring sealing sleeve which comprises a sealing sleeve body and a flange plate, the flange plate is arranged on the surface of the sealing sleeve body in a sleeved mode and fixedly connected with the sealing sleeve body, the sealing sleeve body is of a hollow frustum-shaped structure, a steel ladle collector nozzle is arranged above the sealing sleeve body, a tundish long nozzle is arranged below the sealing sleeve body, and the flange plate is fixedly connected with the sealing sleeve body. The sealing sleeve is located between the steel ladle collector nozzle and the tundish long nozzle and makes contact with the surfaces of the steel ladle collector nozzle and the tundish long nozzle. The sealing sleeve, the flange plate, the steel ladle collector nozzle, the tundish long nozzle, the mounting groove, the insertion strip, the insertion hole, the bolt and the argon pipe are matched for use, so that the problems that in the pouring process, molten steel and a high-temperature environment can generate certain impact and vibration on the sealing sleeve, if the sealing sleeve is not fixed, the sealing sleeve possibly falls off due to looseness, and the sealing sleeve cannot be fixed are solved. And sealing failure is caused.

Description

Technical Field

[0001] The utility model belongs to the technical field of ladle protective casting sealing sleeves, and particularly relates to a ladle protective casting sealing sleeve. Background Technique

[0002] The ladle protective casting sealing sleeve is a key component in steelmaking continuous casting equipment. Its main function is to provide a seal between the ladle sub-nozzle and the tundish long nozzle, prevent secondary oxidation of molten steel caused by negative pressure suction during the casting process, and isolate air at the same time to ensure the smooth progress of the casting process. The ladle protective casting sealing sleeve is usually designed to tightly fill the gap between the ladle sub-nozzle and the tundish long nozzle, and achieve a good sealing effect through its special material and structure. This kind of sealing sleeve can not only effectively prevent molten steel from sucking air, but also protect the casting equipment from high temperature and molten steel erosion.

[0003] The problems existing in the prior art are as follows: During the casting process, molten steel and high-temperature environment will cause certain impact and vibration on the sealing sleeve. If it is not fixed, the sealing sleeve may fall off due to loosening, resulting in sealing failure. Summary of the Utility Model

[0004] In view of the problems existing in the prior art, the utility model provides a ladle protective casting sealing sleeve, which has the advantage of improving the fixing stability of the sealing sleeve, and solves the problem that during the casting process, molten steel and high-temperature environment will cause certain impact and vibration on the sealing sleeve. If it is not fixed, the sealing sleeve may fall off due to loosening, resulting in sealing failure.

[0005] The utility model is realized as follows: The ladle protective casting sealing sleeve includes a sealing sleeve and a flange. The flange is sleeved on the surface of the sealing sleeve and fixedly connected thereto. The sealing sleeve is of a hollow frustum structure. A ladle sub-nozzle is arranged above the sealing sleeve, and a tundish long nozzle is arranged below the sealing sleeve. The sealing sleeve is located between the ladle sub-nozzle and the tundish long nozzle and is in contact with the surfaces of both.

[0006] Preferably, an installation groove is formed at the top of the tundish long nozzle, and an insertion bar corresponding to the installation groove is fixedly connected to the bottom of the flange. The insertion bar is inserted into the interior of the installation groove. By providing the installation groove and the insertion bar, the flange can be docked and assembled with the tundish long nozzle, thereby improving the stability of the flange and the sealing sleeve.

[0007] Preferably, insertion holes are equidistantly formed at the top of the tundish long nozzle, and bolts are threadedly connected to the top of the flange and are corresponding to and threadedly connected to the insertion holes. By providing the insertion holes and the bolts, after the bolts are inserted into the insertion holes, the flange can be fixed, thereby improving the stability of the sealing sleeve.

[0008] Preferably, an argon gas pipe is fixedly connected to the surface of the tundish long nozzle. By providing the argon gas pipe, argon gas can be blown in through an externally connected argon gas pipe to form a double protection seal, further isolating air and ensuring the smooth progress of the molten steel pouring process.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0010] 1. By using the combination of a sealing sleeve, a flange, a ladle nozzle, a tundish long nozzle, an installation groove, an insertion strip, an insertion hole, a bolt and an argon gas pipe, the present utility model solves the problem that during the pouring process, the molten steel and high-temperature environment will cause certain impact and vibration on the sealing sleeve. If not fixed, the sealing sleeve may fall off due to loosening, resulting in sealing failure.

[0011] 2. By providing the argon gas pipe, argon gas can be blown in through an externally connected argon gas pipe to form a double protection seal, further isolating air and ensuring the smooth progress of the molten steel pouring process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a three-dimensional structural view of a ladle protection pouring sealing sleeve provided by an embodiment of the present utility model;

[0013] Figure 2 is an exploded three-dimensional structural view of a ladle protection pouring sealing sleeve provided by an embodiment of the present utility model;

[0014] Figure 3 is a three-dimensional sectional view of a ladle protection pouring sealing sleeve provided by an embodiment of the present utility model.

[0015] In the figure: 1. Sealing sleeve; 2. Flange; 3. Ladle nozzle; 4. Tundish long nozzle; 5. Installation groove; 6. Insertion strip; 7. Insertion hole; 8. Bolt; 9. Argon gas pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] In order to further understand the inventive content, features and effects of the present utility model, the following embodiments are cited and described in detail in conjunction with the accompanying drawings.

[0017] The structure of the present utility model will be described in detail below with reference to the accompanying drawings.

[0018] As Figures 1 to 3As shown in the figure, the ladle protection casting sealing sleeve provided by the embodiment of the present utility model includes a sealing sleeve 1 and a flange 2. The flange 2 is sleeved on the surface of the sealing sleeve 1 and fixedly connected thereto. The sealing sleeve 1 is of a hollow frustum structure. A ladle tundish nozzle 3 is provided above the sealing sleeve 1, and a tundish long nozzle 4 is provided below the sealing sleeve 1. The sealing sleeve 1 is located between the ladle tundish nozzle 3 and the tundish long nozzle 4 and is in contact with the surfaces of both.

[0019] Reference Figure 2 and Figure 3 , an installation groove 5 is opened at the top of the tundish long nozzle 4, and an insertion bar 6 corresponding to the installation groove 5 is fixedly connected to the bottom of the flange 2. The insertion bar 6 is inserted into the interior of the installation groove 5.

[0020] By adopting the above scheme: by providing the installation groove 5 and the insertion bar 6, the flange 2 and the tundish long nozzle 4 can be docked and assembled, thereby improving the stability of the flange 2 and the sealing sleeve 1.

[0021] Reference Figure 2 , a socket 7 is equidistantly opened at the top of the tundish long nozzle 4, and a bolt 8 is threadedly connected to the top of the flange 2, and the bolt 8 corresponds to the socket 7 and is threadedly connected.

[0022] By adopting the above scheme: by providing the socket 7 and the bolt 8, after the bolt 8 is inserted into the socket 7, the flange 2 can be fixed, thereby improving the stability of the sealing sleeve 1.

[0023] Reference Figure 1 , Figure 2 and Figure 3 , an argon gas pipe 9 is fixedly communicated with the surface of the tundish long nozzle 4.

[0024] By adopting the above scheme: by providing the argon gas pipe 9, argon gas can be blown in through the externally connected argon gas pipe 9 to form a double protection seal, further isolating the air and ensuring the smooth progress of the molten steel pouring process.

[0025] The working principle of the present utility model:

[0026] During use, after the sealing sleeve 1 is placed on the tundish long nozzle 4, the insertion bar 6 at the bottom of the flange on the surface of the sealing sleeve 1 is inserted into the interior of the installation groove 5 on the surface of the tundish long nozzle 4, and then the bolt 8 is sequentially installed with the flange 2 to fix the flange 2 inside the tundish long nozzle 4, and then the ladle tundish nozzle 3 can be placed inside the sealing sleeve 1, thus completing its assembly.

[0027] In summary, for the ladle protective casting sealing sleeve, by using the cooperation of the sealing sleeve 1, flange 2, ladle bottom nozzle 3, tundish long nozzle 4, installation groove 5, insertion strip 6, insertion hole 7, bolt 8 and argon pipe 9, the problem that during the casting process, the molten steel and high-temperature environment will cause certain impact and vibration on the sealing sleeve, and if it is not fixed, the sealing sleeve may fall off due to loosening, resulting in sealing failure, is solved.

[0028] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Ladle protective casting sealing sleeve, comprising a sealing sleeve (1) and a flange (2), characterized in that: The flange (2) is sleeved on the surface of the sealing sleeve (1) and fixedly connected thereto. The sealing sleeve (1) is of a hollow frustum structure. A ladle tundish nozzle (3) is arranged above the sealing sleeve (1), and a tundish long nozzle (4) is arranged below the sealing sleeve (1). The sealing sleeve (1) is located between the ladle tundish nozzle (3) and the tundish long nozzle (4) and is in contact with the surfaces of both of them.

2. The ladle protective casting sealing sleeve according to claim 1, wherein: An installation groove (5) is formed at the top of the tundish long nozzle (4). A plug (6) corresponding to the installation groove (5) is fixedly connected to the bottom of the flange (2). The plug (6) is inserted into the interior of the installation groove (5).

3. The tundish protection casting sealing sleeve according to claim 1, characterized in that: A plurality of jacks (7) are equidistantly formed at the top of the tundish long nozzle (4). A bolt (8) is threadedly connected to the top of the flange (2), and the bolt (8) corresponds to and is threadedly connected to the jack (7).

4. The tundish protection casting seal sleeve according to claim 1, characterized in that: An argon pipe (9) is fixedly communicated with the surface of the tundish long nozzle (4).

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