CN218926232U

CN218926232U - Argon blowing-free long nozzle capable of preventing air suction

Info

Publication number: CN218926232U
Application number: CN202222311435.0U
Authority: CN
Inventors: 彭程林; 范雨来
Original assignee: Maanshan Yijiang Refractory Ceramics Manufacturing Co ltd
Current assignee: Maanshan Yijiang Refractory Ceramics Manufacturing Co ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2023-04-28
Anticipated expiration: 2032-08-31

Abstract

The utility model discloses an argon blowing-free and air suction-preventing long nozzle, which comprises a pipe body, wherein a first seal is arranged on the side wall of one end of the pipe body, a second seal is arranged on the side wall of the first seal, a tooth mouth is arranged on the side wall of one end of the first seal, which is close to the second seal, a baffle is arranged on the side wall of one end of the second seal, which is close to the first seal, and the baffle is positioned in the tooth mouth, and the second seal is arranged on the top wall of one end of the pipe body; the sealing equipment can be attached to the inner wall of the long nozzle, prevents air from affecting molten steel, is easy to replace, and is convenient to replace sealing equipment which cannot work normally.

Description

Argon blowing-free long nozzle capable of preventing air suction

Technical Field

The utility model relates to the technical field of smelting equipment, in particular to an argon blowing-free and air suction-preventing long nozzle.

Background

With the development of social economy and science and technology, the performance requirements on steel materials are increasingly improved. How to effectively prevent and maximally remove impurities so as to improve the cleanliness of molten steel is the main direction of current research, and a long nozzle (or a protecting pipe) is used between a ladle and a tundish to protect molten steel from secondary oxidation and prevent the molten steel from splashing, and preheating is performed before use, otherwise, accidents such as cracking and fracture easily occur during casting. It has strong adaptability to steel types and good erosion resistance.

The long nozzle is characterized in that the steel flow is sealed in a smaller pipeline to isolate air, the air oxidizes molten steel, so that the quality of the molten steel is reduced, negative pressure at the joint of the long nozzle can cause air to be sucked into the long nozzle, and the sealing equipment can prevent air from entering to a certain extent.

Disclosure of Invention

The utility model aims to solve the defects existing in the prior art, such as: the sealing equipment can be used for preventing air from entering molten steel, but the sealing equipment is difficult to simultaneously have the characteristics of being attached to the long water gap and being convenient to replace, and the long water gap without argon blowing and air suction is provided.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a long mouth of a river of breathing in is prevented blowing argon, includes the body, body one end lateral wall is installed first sealedly, first sealed lateral wall is provided with the second sealedly, the first sealed tooth mouth of having installed near second sealed one end lateral wall, the baffle is installed near first sealed one end lateral wall to the second sealedly, the baffle is located tooth mouth inside, second sealedly is installed at body one end roof.

The utility model further defines the technical scheme that:

preferably, the first sealed end of the pipe body is of an open design, and the first sealed end far away from the second sealed end is attached to the open end of the pipe body.

Preferably, the top wall of the tooth mouth is provided with an inserting rod, the top wall of the baffle is provided with an inserting hole, and the inserting rod is matched with the inserting hole in size.

Preferably, the pipe body is close to the sealed one end of second and sets up flutedly, the sealed bottom of second is installed and is restrained the pole, inside the restriction pole inserts the recess.

Preferably, the first seal is made of magnesium oxide, and the height of one end of the first seal extending out of the pipe body is the same as the height of the second seal.

Compared with the prior art, the utility model has the beneficial effects that:

1. the first seal attached to the long water gap is identical to the open end in shape, so that molten steel pouring equipment which is originally in direct contact with the long water gap can be guaranteed to work in a manner of being attached to the first seal, external air is effectively prevented from entering the long water gap from the open end, further the subsequent forming of molten steel is influenced, the second seal positioned on one side of the first seal can limit the position of the first seal, and the molten steel pouring equipment is guaranteed not to move with the first seal after being pulled out;

2. the first seal and the second seal are the same in height, so that one of the first seal and the second seal cannot be easily shaken from the side face, the connection between the first seal and the second seal is stable, the second seal is clamped in the pipe body when the pipe is not used, the first seal is limited by the second seal, the first seal and the second seal can be stably arranged on the pipe body due to the mutual limiting effect, the first seal in contact with molten steel is made of magnesium oxide, and the first seal can still safely work at the working temperature of 1700 ℃ of molten steel.

Drawings

FIG. 1 is a schematic diagram of a long nozzle without argon blowing and air suction;

fig. 2 is a schematic diagram of a connection structure of the first seal and the second seal.

In the figure: 1 pipe body, 2 first seals, 3 second seals, 4 teeth mouths, 5 baffles, 6 inserted bars, 7 jacks, 8 grooves and 9 limiting bars.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-2, an argon blowing-free and air suction-preventing long nozzle comprises a pipe body 1, wherein a first seal 2 is arranged on the side wall of one end of the pipe body 1, which is arranged at the first seal 2, is in an open design, one end, which is far away from a second seal 3, of the first seal 2 is attached to one open end of the pipe body 1, the first seal 2 attached to the long nozzle is identical to the open end in shape, so that molten steel filling equipment which is originally in direct contact with the long nozzle can be ensured to work tightly attached to the first seal 2, and external air is effectively prevented from entering the long nozzle from the open end, and further the subsequent molding of molten steel is influenced;

the side wall of the first seal 2 is provided with the second seal 3, the material of the first seal 2 is magnesium oxide, the material of the first seal 2 which is in contact with molten steel is magnesium oxide, the melting point of the magnesium oxide is 2852 ℃, the first seal 2 can still work safely at the working temperature of 1700 ℃ of the molten steel can be ensured, and the requirement can be met with lower cost if the original first seal 2 is damaged due to lower cost of the magnesium oxide;

the height of one end of the first seal 2, which extends out of the pipe body 1, is the same as that of the second seal 3, and the height of the first seal 2 is the same as that of the second seal 3, so that one of the two seals cannot be easily shaken from the side surface, and the connection between the two seals is stable;

a tooth mouth 4 is arranged on the side wall of one end of the first seal 2, which is close to the second seal 3, a baffle 5 is arranged on the side wall of one end of the second seal 3, which is close to the first seal 2, the baffle 5 is positioned in the tooth mouth 4, an inserting rod 6 is arranged on the top wall of the tooth mouth 4, an inserting hole 7 is formed in the top wall of the baffle 5, the inserting rod 6 is matched with the inserting hole 7 in size, and the inserting rod 6 is inserted into the inserting hole 7 so that the first seal 2 and the second seal 3 are mutually limited;

the second seal 3 is installed at body 1 one end roof, and recess 8 has been seted up to body 1 near the sealed 3 one end of second, and restriction pole 9 has been installed to the sealed 3 bottom of second, and restriction pole 9 inserts inside recess 8, and restriction pole 9 in the recess 8 can guarantee to restrict the position each other between second seal 3 and the body 1.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a long mouth of a river of breathing in is prevented to argon blowing, includes body (1), a serial communication port, first sealed (2) are installed to body (1) one end lateral wall, first sealed (2) lateral wall is provided with second sealed (3), first sealed (2) are close to second sealed (3) one end lateral wall and install tooth mouth (4), second sealed (3) are close to first sealed (2) one end lateral wall and install baffle (5), baffle (5) are located tooth mouth (4) inside, second sealed (3) are installed at body (1) one end roof.

2. The argon-blowing-free air suction-preventing long nozzle according to claim 1, wherein the tube body (1) is of an open design at one end of the first seal (2), and one end of the first seal (2) far away from the second seal (3) is attached to the open end of the tube body (1).

3. The argon-blowing-free air suction-preventing long nozzle according to claim 1, wherein an inserting rod (6) is arranged on the top wall of the tooth mouth (4), an inserting hole (7) is formed in the top wall of the baffle plate (5), and the inserting rod (6) is matched with the inserting hole (7) in size.

4. The argon-blowing-free air suction-preventing long nozzle according to claim 1, wherein a groove (8) is formed in one end, close to the second seal (3), of the tube body (1), a limiting rod (9) is arranged at the bottom end of the second seal (3), and the limiting rod (9) is inserted into the groove (8).

5. The argon-blowing-free air suction-preventing long nozzle according to claim 2, wherein the first seal (2) is made of magnesium oxide, and the height of one end of the first seal (2) extending out of the pipe body (1) is the same as the height of the second seal (3).