Anti-blocking submersed nozzle

Abstract

The utility model discloses an anti-blocking submersed nozzle which comprises a submersed nozzle body, a bowl opening is formed in the top of the submersed nozzle body, an outlet is formed in the bottom of the submersed nozzle body, and the submersed nozzle body is heated through a pre-electric heating assembly. Molten steel is poured out through the inner hole, the flowing speed of the molten steel in the inner hole is higher and higher, and therefore the time for the molten steel to stay in the inner hole is shortened, meanwhile, argon is introduced into the inner hole through the gas injection pipe, and the molten steel is prevented from being cooled in the inner hole due to the fact that the temperature difference between the molten steel and the submersed nozzle body is large. Molten steel or solid steel can be blown, the molten steel is prevented from being accumulated in the inner hole, the anti-blocking effect of the submersed nozzle body is improved, the striking column is driven to strike the outer wall of the submersed nozzle body to vibrate the molten steel or solid steel located on the inner wall of the inner hole of the submersed nozzle, and the molten steel or solid steel is shaken off. The inner hole is prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of iron and steel metallurgy casting, in particular to an anti-blocking immersed nozzle. Background Art

[0002] In the steelmaking and continuous casting processes, the submerged nozzle, a critical component connecting the tundish and mold, directly impacts molten steel flow, temperature control, and ingot quality. Traditional submerged nozzles often face the problem of internal bore blockage due to the large temperature difference between the molten steel and the nozzle body. When hot molten steel flows through the nozzle into the mold, if the nozzle body is at a lower temperature, the molten steel rapidly cools and solidifies into solid steel on the inner wall of the internal bore. This solid steel gradually accumulates and blocks the bore, affecting the flow of the molten steel and even causing production interruptions, increasing production costs, and reducing product quality. Furthermore, the flow rate of the molten steel in the internal bore is a key factor influencing blockage. Slow flow of the molten steel increases its residence time within the bore, increasing the risk of cooling and solidification. Furthermore, variations in the molten steel's composition, temperature, and flow state can also lead to localized accumulation within the bore, further exacerbating the blockage problem.

[0003] To address these issues, various approaches have been attempted, such as optimizing nozzle materials, improving cooling systems, and adding slag removal devices. However, these approaches still have limitations in practical application, such as high costs, complex maintenance, and inconsistent results. Therefore, it is particularly important to develop a non-clogging submerged nozzle that can effectively prevent molten steel from cooling and solidifying in the inner bore, increase its flow rate, and reduce maintenance costs. Utility Model Content

[0004] The purpose of the present invention is to provide an anti-clogging immersed water outlet to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-clogging immersion nozzle, comprising an immersion nozzle body, a bowl-shaped mouth is provided on the top of the immersion nozzle body, an outlet is provided on the bottom of the immersion nozzle body, an inner hole is provided inside the immersion nozzle body, and the inner hole is inclined. A movable plate is installed on the outside of the immersion nozzle body, and a striking column for striking the outer wall of the immersion nozzle body is fixedly installed at equal distances on one side of the movable plate.

[0006] As a further preferred embodiment of the present technical solution, the angle between the inner hole and the horizontal plane is eighty-five degrees.

[0007] As a further preferred embodiment of the present technical solution, a pre-electric heating component is fixedly installed in an annular array inside the immersion nozzle body.

[0008] As a further preferred embodiment of the present technical solution, the immersed nozzle body includes an inner tube and an outer tube, the inner tube and the outer tube are welded and fixed, a cavity is formed between the inner tube and the outer tube, the pre-electric heating component is fixed inside the cavity, and the interior of the cavity is filled with heat-conducting liquid.

[0009] As a further preferred embodiment of the present technical solution, a gas injection pipe for introducing argon gas is symmetrically fixedly installed on the top of the submerged nozzle body, and the gas outlet of the gas injection pipe faces downward.

[0010] As a further preferred embodiment of the present technical solution, mounting columns are symmetrically fixedly installed on the outer wall of the immersion nozzle body, and limiting holes are provided on the movable plate corresponding to the positions of the mounting columns. The limiting holes are slidably connected to the mounting columns, and a spring is sleeved on the outer side of the end of the mounting column away from the immersion nozzle body, one end of the spring is fixedly connected to the end of the mounting column away from the immersion nozzle body, and the other end of the spring is fixedly connected to one side of the movable plate.

[0011] As a further preferred embodiment of the present technical solution, a pull ring is fixedly installed on a side of the movable plate away from the striking column.

[0012] The utility model provides an anti-clogging immersion nozzle, which has the following beneficial effects:

[0013] (1) The utility model heats the heat-conducting liquid filled in the cavity by a pre-electric heating component, thereby heating the immersion nozzle body, preventing the temperature difference between the molten steel and the immersion nozzle body from being large and cooling inside the inner hole to form a steel solid, and pouring the molten steel out through the inner hole. Since the inner hole is set at an angle, the molten steel will flow faster and faster inside the inner hole, which is used to reduce the time the molten steel stays in the inner hole. At the same time, argon gas is introduced into the inner hole through the gas injection pipe to blow the molten steel or the steel solid, preventing the molten steel from accumulating inside the inner hole, thereby improving the anti-clogging effect of the immersion nozzle body.

[0014] (2) The utility model drives the movable plate to move along the installation column by pulling the pull ring, and moves the striking column away from the outer wall of the immersion nozzle body. At this time, the spring is in a compressed state, and then the pulling of the pull ring is canceled. The spring pushes the movable plate to drive the striking column to hit the outer wall of the immersion nozzle body, which is used to vibrate the molten steel or steel solid on the inner wall of the inner hole of the immersion nozzle, shake off the molten steel or steel solid, and prevent the inner hole from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the utility model;

[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0018] In the figure: 1. Immersed nozzle body; 2. Bowl mouth; 3. Outlet; 4. Inner hole; 5. Moving plate; 6. Striking column; 7. Pre-electric heating component; 8. Inner tube; 9. Outer tube; 10. Cavity; 11. Air injection pipe; 12. Mounting column; 13. Limiting hole; 14. Spring; 15. Pull ring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0020] The utility model provides a technical solution: Figures 1 to 3 As shown, in this embodiment, an anti-clogging immersion nozzle includes an immersion nozzle body 1, a bowl-shaped mouth 2 is provided on the top of the immersion nozzle body 1, an outlet 3 is provided on the bottom of the immersion nozzle body 1, an inner hole 4 is provided inside the immersion nozzle body 1, and the inner hole 4 is inclined. A movable plate 5 is installed on the outside of the immersion nozzle body 1, and a striking column 6 for striking the outer wall of the immersion nozzle body 1 is fixedly installed at an equal distance on one side of the movable plate 5.

[0021] like Figures 1 to 3 As shown, the angle between the inner hole 4 and the horizontal plane is eighty-five degrees.

[0022] like Figures 1 to 3 As shown, the internal annular array of the immersion nozzle body 1 is fixedly installed with a pre-electric heating component 7.

[0023] The heat-conducting liquid filled in the cavity 10 is heated by the pre-electric heating component 7 to heat the submerged nozzle body 1 .

[0024] like Figures 1 to 3 As shown, the submerged nozzle body 1 includes an inner tube 8 and an outer tube 9, which are welded and fixed to form a cavity 10 between the inner tube 8 and the outer tube 9. The pre-electric heating component 7 is fixed inside the cavity 10, and the inside of the cavity 10 is filled with heat-conducting liquid.

[0025] The installation of the pre-electric heating component 7 can be facilitated.

[0026] like Figures 1 to 3 As shown, a gas injection pipe 11 for introducing argon gas is symmetrically fixedly installed on the top of the submerged nozzle body 1, and the gas outlet of the gas injection pipe 11 faces downward.

[0027] Argon gas is introduced into the inner hole 4 through the gas injection pipe 11 to blow the molten steel or solid steel.

[0028] like Figures 1 to 3 As shown, the outer wall of the immersion nozzle body 1 is symmetrically fixed with a mounting column 12, and the movable plate 5 is provided with a limiting hole 13 corresponding to the position of the mounting column 12, and the limiting hole 13 is slidably connected to the mounting column 12. A spring 14 is sleeved on the outer side of the end of the mounting column 12 away from the immersion nozzle body 1, and one end of the spring 14 is fixedly connected to the end of the mounting column 12 away from the immersion nozzle body 1, and the other end of the spring 14 is fixedly connected to one side of the movable plate 5.

[0029] By driving the movable plate 5 to move along the mounting column 12, the striking column 6 is moved away from the outer wall of the submerged nozzle body 1. At this time, the spring 14 is in a compressed state, and then the pull ring 15 is released. The spring 14 pushes the movable plate 5 to drive the striking column 6 to hit the outer wall of the submerged nozzle body 1, which is used to vibrate the molten steel or steel solid on the inner wall of the submerged nozzle inner hole 4, and shake off the molten steel or steel solid to prevent the inner hole 4 from being blocked.

[0030] like Figures 1 to 3 As shown, a pull ring 15 is fixedly mounted on the side of the movable plate 5 away from the striking column 6 .

[0031] It is convenient to pull the movable plate 5.

[0032] The utility model provides an anti-clogging immersion water outlet, and the specific working principle is as follows:

[0033] When the device is in use, the submerged nozzle body 1 is installed at the bottom of the intermediate tank, and the heat-conducting liquid filled in the cavity 10 is heated by the pre-electric heating component 7 to achieve heating of the submerged nozzle body 1, thereby preventing the temperature difference between the molten steel and the submerged nozzle body 1 from being large and cooling inside the inner hole 4 to form a steel solid. The molten steel is poured out through the inner hole 4. Since the inner hole 4 is inclined, the molten steel will flow faster and faster inside the inner hole 4, which is used to reduce the time the molten steel stays inside the inner hole 4. At the same time, argon gas is introduced into the inner hole 4 through the gas injection pipe 11 to blow the molten steel or the steel solid, thereby preventing the molten steel from accumulating inside the inner hole 4 and improving the anti-clogging effect of the submerged nozzle body 1.

[0034] By pulling the pull ring 15, the movable plate 5 is driven to move along the installation column 12, and the striking column 6 is moved away from the outer wall of the submerged nozzle body 1. At this time, the spring 14 is in a compressed state, and then the pulling of the pull ring 15 is canceled. The spring 14 pushes the movable plate 5 to drive the striking column 6 to hit the outer wall of the submerged nozzle body 1, which is used to vibrate the molten steel or steel solid on the inner wall of the submerged nozzle inner hole 4, and shake off the molten steel or steel solid to prevent the inner hole 4 from being blocked.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-clogging submerged nozzle, characterized by: The invention comprises an immersion nozzle body (1), wherein a bowl-shaped mouth (2) is provided on the top of the immersion nozzle body (1), an outlet (3) is provided on the bottom of the immersion nozzle body (1), an inner hole (4) is provided inside the immersion nozzle body (1), and the inner hole (4) is arranged in an inclined manner. A movable plate (5) is installed on the outer side of the immersion nozzle body (1), and a striking column (6) for striking the outer wall of the immersion nozzle body (1) is fixedly installed at equal intervals on one side of the movable plate (5).

2. The anti-clogging submerged nozzle according to claim 1, characterized in that: The angle between the inner hole (4) and the horizontal plane is eighty-five degrees.

3. The anti-clogging submerged nozzle according to claim 1, characterized in that: A pre-electric heating assembly (7) is fixedly installed in an annular array inside the submerged nozzle body (1).

4. The anti-clogging submerged nozzle according to claim 3, characterized in that: The submerged nozzle body (1) comprises an inner tube (8) and an outer tube (9), the inner tube (8) and the outer tube (9) being welded and fixed, a cavity (10) being formed between the inner tube (8) and the outer tube (9), the pre-electric heating component (7) being fixed inside the cavity (10), and the interior of the cavity (10) being filled with a heat-conducting liquid.

5. The anti-clogging submerged nozzle according to claim 4, characterized in that: An air injection pipe (11) for introducing argon gas is symmetrically and fixedly mounted on the top of the submerged nozzle body (1), with the air outlet of the air injection pipe (11) facing downward.

6. The anti-clogging submerged nozzle according to claim 5, characterized in that: The outer wall of the immersion nozzle body (1) is symmetrically fixedly mounted with a mounting column (12); the movable plate (5) is provided with a limiting hole (13) at a position corresponding to the mounting column (12); the limiting hole (13) is slidably connected to the mounting column (12); a spring (14) is sleeved on the outer side of one end of the mounting column (12) away from the immersion nozzle body (1); one end of the spring (14) is fixedly connected to the end of the mounting column (12) away from the immersion nozzle body (1); and the other end of the spring (14) is fixedly connected to one side of the movable plate (5).

7. The anti-clogging submerged nozzle according to claim 1, characterized in that: A pull ring (15) is fixedly mounted on one side of the movable plate (5) away from the striking column (6).

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