Net-shaped argon channel stopper rod

Abstract

The utility model belongs to the technical field of metal smelting equipment, and particularly relates to a net-shaped argon channel stopper rod which comprises an exhaust pipe, an opening is formed in the upper end of the exhaust pipe, the lower end of the exhaust pipe is arranged in a spherical shape, a plurality of first strip-shaped exhaust grooves are formed in the spherical surface of the lower end of the exhaust pipe and distributed at equal intervals in a radial shape, and the lower end of the exhaust pipe is provided with a plurality of second strip-shaped exhaust grooves. The lower ends of the first exhaust grooves communicate with one another, and a plurality of second vertical exhaust grooves are formed in the outer wall of the middle of the exhaust pipe. The exhaust pipe has the advantages that argon exhausted from the second air pipe is exhausted from the second exhaust groove, under the limiting effect of the shielding pipe, the argon exhausted from the second exhaust groove is swept downwards along the outer wall of the exhaust pipe, impurities attached to the outer wall of the exhaust pipe are removed, and the cleanliness of the outer wall of the exhaust pipe is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal smelting equipment, in particular to a mesh argon channel plug rod. Background Art

[0002] The hole in the stopper rod is connected to the argon source. During the continuous casting process, argon enters the inner cavity of the tundish water inlet from the hollow tube. At this time, the inner cavity of the tundish is filled with molten steel flowing downward rapidly. The argon moves downward rapidly with the molten steel and diffuses, which can play a role in cleaning the attachments (flocculation) inside the water inlet.

[0003] The attachments generally come from inclusions in the molten steel. When the impurities adhere to the outer wall of the stopper rod, the argon gas in the stopper rod only passes out from the lower end and cannot clean its own outer wall, resulting in low cleanliness of the outer wall of the stopper rod.

[0004] In order to solve the above problems, we proposed a mesh argon channel plug rod. Utility Model Content

[0005] The utility model aims to solve the problems in the background technology and proposes a mesh argon channel plug rod.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a mesh argon channel plug rod, comprising an exhaust pipe, the upper end of the exhaust pipe is provided with an opening and the lower end is spherical, a plurality of strip-shaped exhaust grooves 1 are provided on the spherical surface of the lower end of the exhaust pipe, the exhaust grooves 1 are radially distributed at equal intervals, and the lower ends of the exhaust grooves 1 are interconnected, a plurality of vertical exhaust grooves 2 are provided on the middle outer wall of the exhaust pipe, a sealing column 1 close to the exhaust groove 1 is fixedly inserted inside the exhaust pipe, a vertical air guide hole 1 is provided in the middle of the sealing column 1, and a sealing The second exhaust groove is located between the sealing column one and the sealing column two, and the middle part of the sealing column two is provided with two vertical air guide holes two, one of which is fixedly inserted with an air pipe one between the second air guide hole and the first air guide hole, and the air pipe one extends upward from the sealing column two, and the other air guide hole two is fixedly inserted with an air pipe two extending upward from the sealing column two, and the outer wall of the exhaust pipe is provided with a guide cover, and the guide cover includes a positioning tube one fixedly sleeved on the outer wall of the exhaust pipe and a shield tube fixedly connected to the positioning tube one, the positioning tube one is located on the upper side of the exhaust groove two, and the shield tube cover is arranged on the outer side of the exhaust groove two, and the outer side of the exhaust pipe is sleeved with a connecting pipe.

[0007] In the above-mentioned mesh argon channel stopper rod, the connecting pipe includes a positioning tube 2 and a mounting tube fixedly connected to the positioning tube 2, the positioning tube 2 is fixedly sleeved on the outer wall of the positioning tube 1, and the mounting tube is arranged vertically upward.

[0008] In the above-mentioned mesh argon channel stopper rod, the inner diameter of the shield tube is larger than the inner diameter of the first positioning tube, and the lower end of the shield tube extends to the lower side of the second exhaust groove.

[0009] In the above-mentioned mesh argon channel plug rod, the gas pipe 1 and the gas pipe 2 are both connected to an argon gas source.

[0010] In the above-mentioned mesh argon channel plug rod, a connecting ring is fixedly connected between the lower ends of the exhaust grooves 1.

[0011] In the above-mentioned mesh argon channel plug rod, the upper side wall of the sealing column one is at the lower end of the high-pressure exhaust groove two.

[0012] Compared with the existing technology, the advantages of this mesh argon channel plug rod are:

[0013] The argon gas discharged from the second air pipe of the utility model will be discharged from the second exhaust groove. Under the limiting effect of the shield pipe, the argon gas discharged from the second exhaust groove will sweep downward along the outer wall of the exhaust pipe, so that impurities attached to the outer wall of the exhaust pipe are removed, thereby improving the cleanliness of the outer wall of the exhaust pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the appearance of a mesh argon channel plug rod proposed by the utility model;

[0015] Figure 2 This is one of the schematic diagrams of the internal structure of a mesh argon channel plug rod proposed by the utility model;

[0016] Figure 3 This is the second schematic diagram of the internal structure of a mesh argon channel plug rod proposed by the utility model;

[0017] Figure 4 for Figure 1 A magnified view of part A;

[0018] Figure 5 for Figure 2 Magnified view of part B.

[0019] In the figure: 1 exhaust pipe, 2 exhaust groove 1, 3 exhaust groove 2, 4 sealing column 1, 5 air guide hole 1, 6 sealing column 2, 7 air guide hole 2, 8 air pipe 1, 9 air pipe 2, 10 positioning pipe 1, 11 shielding pipe, 12 positioning pipe 2, 13 installation pipe, 14 connecting ring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-Figure 5 A mesh argon channel plug rod comprises an exhaust pipe 1, the upper end of the exhaust pipe 1 is provided with an opening and the lower end is spherical, a plurality of strip-shaped exhaust grooves 2 are provided on the spherical surface of the lower end of the exhaust pipe 1, the exhaust grooves 2 are radially distributed at equal intervals, and the lower ends of the exhaust grooves 2 are interconnected, in order to improve the stability of the lower end of the exhaust pipe 1, a connecting ring 14 is fixedly connected between the lower ends of the exhaust grooves 2, a plurality of vertical exhaust grooves 23 are provided on the middle outer wall of the exhaust pipe 1, the exhaust grooves 23 are distributed in a ring array, the exhaust grooves 12 and the exhaust grooves 23 both penetrate the inner and outer walls of the exhaust pipe 1, a sealing column 4 close to the exhaust groove 2 is fixedly inserted inside the exhaust pipe 1, a vertical air guide hole 5 is provided in the middle of the sealing column 4, a sealing column 4 close to the upper surface of the exhaust pipe 1 is fixedly inserted inside the exhaust pipe 1 The sealing column 26 at the end, the exhaust groove 23 is located between the sealing column 14 and the sealing column 26, and two vertical air guide holes 27 are opened in the middle of the sealing column 26, an air pipe 8 is fixedly inserted between one of the air guide holes 27 and the air guide hole 15, and the air pipe 8 extends upward from the sealing column 26, and the other air guide hole 27 is fixedly inserted with an air pipe 29 extending upward from the sealing column 26, and the air pipe 18 and the air pipe 29 are both connected with an argon source. After the argon source is introduced into the air pipe 18 and the air pipe 29, the air pipe 8 transports the argon to the air guide hole 15, outputs from the air guide hole 5 to the lower end of the exhaust pipe 1, and then is discharged outwardly through the exhaust groove 2 to clean the attachments inside the water inlet of the intermediate ladle, and the air pipe 29 transports the argon to between the sealing column 14 and the sealing column 26, and discharges from the exhaust groove 23 to the outside of the exhaust pipe 1.

[0022] The outer wall of the exhaust pipe 1 is provided with a guide cover, which includes a positioning tube 10 fixedly mounted on the outer wall of the exhaust pipe 1 and a shield tube 11 fixedly connected to the positioning tube 10. The positioning tube 10 is located on the upper side of the exhaust groove 23, and the shield tube 11 is covered on the outer side of the exhaust groove 23. The inner diameter of the shield tube 11 is larger than the inner diameter of the positioning tube 10, and the lower end of the shield tube 11 extends to the lower side of the exhaust groove 23. After the argon gas is discharged from the exhaust groove 23, under the limiting action of the shield tube 11, the shield tube 11 is discharged downward along the outer wall of the exhaust pipe 1, so as to clean the outer wall of the exhaust pipe 1, remove the attachments on the outer wall of the exhaust pipe 1, and improve the cleanliness of the outer wall of the exhaust pipe 1.

[0023] A connecting pipe is sleeved on the outer side of the exhaust pipe 1, and the connecting pipe includes a positioning pipe 12 and a mounting pipe 13 fixedly connected to the positioning pipe 12. The positioning pipe 12 is fixedly sleeved on the outer wall of the positioning pipe 10, and the mounting pipe 13 is vertically arranged upward, and the outer diameter of the mounting pipe 13 is larger than the outer diameter of the shielding tube 11. The mounting pipe 13 is slidably inserted on the intermediate package to facilitate the up and down movement of the exhaust pipe 1, and at the same time seals the lower end of the high-pressure exhaust groove 23 on the upper side wall of the sealing column 14 to prevent the molten steel in the intermediate package from flowing back into the exhaust pipe 1 from the exhaust groove 23 and being unable to be discharged from the exhaust groove 23 again.

[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mesh argon channel plug rod, comprising an exhaust pipe (1), characterized in that: The exhaust pipe (1) is provided with an opening at the upper end and is spherically arranged at the lower end. A plurality of strip-shaped exhaust grooves (2) are provided on the spherical surface at the lower end of the exhaust pipe (1). The exhaust grooves (2) are radially distributed at equal intervals, and the lower ends of the exhaust grooves (2) are interconnected. A plurality of vertical exhaust grooves (3) are provided on the outer wall of the middle part of the exhaust pipe (1). A sealing column (4) close to the exhaust groove (2) is fixedly inserted inside the exhaust pipe (1). A vertical air guide hole (5) is provided in the middle of the sealing column (4). A sealing column (6) close to the upper end of the exhaust pipe (1) is fixedly inserted inside the exhaust pipe (1). The exhaust groove (3) is located between the sealing column (4) and the sealing column (6). Two vertical air guide holes (7) are provided in the middle of the sealing column (6), wherein an air pipe (8) is fixedly inserted between one of the air guide holes (7) and the air guide hole (5), and the air pipe (8) extends upward from the sealing column (6); and an air pipe (9) extending upward from the sealing column (6) is fixedly inserted into the other air guide hole (7). The outer wall of the exhaust pipe (1) is provided with a guide cover, and the guide cover comprises a positioning pipe (10) fixedly sleeved on the outer wall of the exhaust pipe (1) and a shield pipe (11) fixedly connected to the positioning pipe (10), the positioning pipe (10) is located on the upper side of the exhaust groove (3), and the shield pipe (11) is shielded on the outer side of the exhaust groove (3). A connecting pipe is sleeved on the outer side of the exhaust pipe (1).

2. The mesh argon channel stopper rod according to claim 1, characterized in that: The connecting pipe comprises a second positioning pipe (12) and a mounting pipe (13) fixedly connected to the second positioning pipe (12); the second positioning pipe (12) is fixedly sleeved on the outer wall of the first positioning pipe (10); and the mounting pipe (13) is arranged vertically upward.

3. The mesh argon channel stopper rod according to claim 1, characterized in that: The inner diameter of the shielding tube (11) is greater than the inner diameter of the first positioning tube (10), and the lower end of the shielding tube (11) extends to the lower side of the second exhaust groove (3).

4. The mesh argon channel stopper rod according to claim 1, characterized in that: The gas pipe 1 (8) and the gas pipe 2 (9) are both connected to an argon gas source.

5. The mesh argon channel stopper rod according to claim 1, characterized in that: A connecting ring (14) is fixedly connected between the lower ends of the exhaust grooves 1 (2).

6. The mesh argon channel stopper rod according to claim 1, characterized in that: The lower end of the high pressure exhaust groove 2 (3) on the upper side wall of the sealing column 1 (4).

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