Submerged nozzle with high structural strength

Abstract

The utility model discloses an immersion type water gap with high structural strength, which comprises a water gap body and a framework mechanism, wherein the water gap body is composed of a bowl section, a transition section and a slag line section; the bowl section is fixedly connected to the top of the transition section; the slag line section is fixedly connected to the bottom of the transition section; the framework mechanism is embedded in the bowl section, the transition section and the slag line section; the framework mechanism is composed of reinforcing rings and reinforcing ribs; the number of the reinforcing rings and the reinforcing ribs is multiple; the reinforcing rings are arranged in a linear array from top to bottom.

Description

Technical Field

[0001] This utility model relates to the field of steel continuous casting technology, specifically to a submerged entry nozzle with high structural strength. Background Technology

[0002] Submerged entry nozzles are refractory sleeves installed at the bottom of the tundish in continuous casting equipment and inserted below the molten steel surface in the crystallizer. The main function of submerged entry nozzles is to prevent secondary oxidation of the molten steel flow from the tundish and to prevent splashing of molten steel. With the increasing demand for high-quality and high-efficiency production in the steel industry, traditional submerged entry nozzles have gradually revealed their limitations in withstanding high-temperature molten steel scouring, thermal stress impact, and chemical corrosion.

[0003] A submersible nozzle, disclosed in patent CN218656798U, includes a nozzle body, a slag line, and an inner lining assembly. During steel casting, molten steel passes through a connecting hole and a tap hole. A first anti-erosion lining and a second anti-erosion lining are sequentially installed on the walls of the connecting hole and the tap hole, preventing the high-temperature molten steel from directly contacting the slag line and the nozzle body, thus minimizing the likelihood of reaction with the submersible nozzle. Simultaneously, a heat-insulating lining is installed at the slag line location, reducing heat transfer and preventing damage to the slag line, which has poor thermal shock resistance, caused by the high-temperature molten steel, thereby extending the service life of the submersible nozzle.

[0004] The aforementioned submerged nozzle design primarily focuses on protecting the slag line and nozzle body from damage caused by high-temperature molten steel through lining components (including an insulating lining, a first erosion-resistant lining, and a second erosion-resistant lining). However, this design does not include any form of skeletal support structure. In actual use, due to the lack of sufficient structural support, the submerged nozzle may be easily damaged by impacts or external forces.

[0005] Therefore, it is necessary to invent a high-strength submersible nozzle to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a high-strength submersible nozzle to solve the problems mentioned above.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-strength submersible nozzle, comprising a nozzle body and a skeleton mechanism. The nozzle body consists of a bowl-shaped section, a transition section, and a slag line section. The bowl-shaped section is fixedly connected to the top of the transition section, and the slag line section is fixedly connected to the bottom of the transition section. The skeleton mechanism is embedded inside the bowl-shaped section, the transition section, and the slag line section. The skeleton mechanism consists of reinforcing rings and reinforcing ribs, with multiple reinforcing rings and reinforcing ribs. The multiple reinforcing rings are arranged in a linear array from top to bottom, and the multiple reinforcing ribs are arranged in a ring array around the reinforcing rings. Each reinforcing rib sequentially connects multiple reinforcing rings together from top to bottom.

[0008] By embedding a skeleton mechanism inside the bowl-shaped section, transition section, and slag line section, the overall structural strength of the sprue is significantly enhanced. This design helps prevent damage to the sprue from external forces during use, thus improving its service life and reliability.

[0009] Preferably, the bowl-shaped section, the transition section, and the slag line section are integrally formed, and all three sections are made of aluminum zirconium carbon material.

[0010] The bowl-shaped section, transition section, and slag line section are integrally molded, reducing potential weaknesses caused by splicing. At the same time, they are made of aluminum zirconium carbon material, which has good high temperature resistance, erosion resistance, and corrosion resistance, further improving the durability and service life of the nozzle.

[0011] Preferably, the plurality of reinforcing rings and the plurality of reinforcing ribs are also integrally formed, and the reinforcing rings and reinforcing ribs are all made of zirconium oxide material.

[0012] The reinforcing ring and reinforcing rib are also integrally molded, ensuring the stability and integrity of the skeleton structure. They are made of zirconium oxide material, which has high hardness, high strength and good heat resistance, and can effectively enhance the structural strength of the sprue and improve its resistance to deformation and damage.

[0013] Preferably, an impact-resistant ring is fixedly connected to the top of the bowl-shaped section, and the impact-resistant ring is made of silicon nitride material.

[0014] An impact-resistant ring is added to the top of the bowl section and made of silicon nitride material. Silicon nitride material has extremely high hardness and wear resistance, which can effectively resist external impact and wear and protect the sprue from damage.

[0015] Preferably, the inner walls of the bowl-shaped section, the transition section, and the slag line section are all fixedly connected with anti-erosion liners, which are made of silicon nitride material.

[0016] An anti-erosion lining is added to the inner wall of the bowl section, transition section and slag line section. It is also made of silicon nitride material. This design can effectively prevent the erosion of molten steel and protect the inner wall of the nozzle from damage.

[0017] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0018] 1. By embedding a skeleton structure composed of reinforcing rings and ribs inside the main body of the sprue, the structural strength of the submersible sprue is significantly improved. Multiple reinforcing rings and ribs together form a robust skeleton network, forming a stable support structure, which effectively enhances the impact resistance and deformation resistance of the main body of the sprue, making the submersible sprue more durable during use and less prone to damage from external forces.

[0019] 2. By setting an anti-impact ring at the top of the bowl section and setting an anti-erosion lining on the inner wall of the bowl section, transition section and slag line section, both the anti-impact ring and the anti-erosion lining are made of silicon nitride material, the ability of the nozzle to resist the impact and erosion of molten steel is enhanced, and the service life of the submerged nozzle is further extended. Attached Figure Description

[0020] Figure 1 This is a first-view overall structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall structure of the present invention from a second perspective;

[0022] Figure 3 This is a schematic diagram of the skeleton mechanism of this utility model;

[0023] Figure 4 This is a side sectional perspective view of the present invention;

[0024] Figure 5 This is a top sectional perspective view of the present invention.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Bowl-shaped section; 2. Transition section; 3. Slag line section; 4. Reinforcing ring; 5. Reinforcing rib; 6. Impact-resistant ring; 7. Erosion-resistant lining. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0028] This utility model provides, for example Figure 1-5The diagram shows a high-strength submersible nozzle, comprising a nozzle body and a skeleton mechanism. The nozzle body consists of a bowl-shaped section 1, a transition section 2, and a slag line section 3. The bowl-shaped section 1 is fixedly connected to the top of the transition section 2, and the slag line section 3 is fixedly connected to the bottom of the transition section 2. The skeleton mechanism is embedded inside the bowl-shaped section 1, the transition section 2, and the slag line section 3. The skeleton mechanism consists of reinforcing rings 4 and reinforcing ribs 5. There are multiple reinforcing rings 4 and reinforcing ribs 5. The multiple reinforcing rings 4 are arranged in a straight line array from top to bottom, and the multiple reinforcing ribs 5 are arranged in a ring array around the reinforcing rings 4. Each reinforcing rib 5 fixes multiple reinforcing rings 4 together sequentially from top to bottom.

[0029] In one aspect of this embodiment, the bowl-shaped section 1, the transition section 2, and the slag line section 3 are integrally formed. The bowl-shaped section 1, the transition section 2, and the slag line section 3 are all made of aluminum zirconium carbon material. The multiple reinforcing rings 4 and the multiple reinforcing ribs 5 are also integrally formed. The reinforcing rings 4 and the reinforcing ribs 5 are all made of zirconium oxide material. An impact-resistant ring 6 is fixedly connected to the top of the bowl-shaped section 1. The impact-resistant ring 6 is made of silicon nitride material. An anti-erosion lining 7 is fixedly connected to the inner wall of the bowl-shaped section 1, the transition section 2, and the slag line section 3. The anti-erosion lining 7 is made of silicon nitride material.

[0030] Working principle of this utility model:

[0031] Refer to the instruction manual appendix Figure 1-5 When using this utility model, firstly, the main body of the nozzle is composed of a bowl-shaped section 1, a transition section 2, and a slag line section 3. These three parts are integrally formed and all use high-temperature resistant and corrosion-resistant aluminum zirconium carbon materials to ensure that the main body of the nozzle has a long service life in the high-temperature molten steel environment.

[0032] Secondly, the skeleton mechanism is embedded inside the main body of the sprue and consists of multiple reinforcing rings 4 and reinforcing ribs 5. The multiple reinforcing rings 4 are arranged in a straight line array from top to bottom, while the multiple reinforcing ribs 5 are arranged in a ring array around the reinforcing rings 4. Each reinforcing rib 5 connects multiple reinforcing rings 4 together from top to bottom, forming a sturdy skeleton network. These reinforcing rings 4 and reinforcing ribs 5 are made of zirconium oxide material in one piece, which not only has high strength but also good toughness, increasing the overall impact resistance and deformation resistance. This makes the submersible sprue more durable during use and less prone to damage from external forces.

[0033] In addition, an anti-impact ring 6 is fixedly connected to the top of the bowl section 1. It is made of silicon nitride material with high hardness and high wear resistance, which further enhances the main body of the nozzle's ability to resist the impact of molten steel. At the same time, the inner walls of the bowl section 1, transition section 2 and slag line section 3 are all fixedly connected with anti-erosion liners 7, which are also made of silicon nitride material. This effectively reduces the erosion and corrosion of the nozzle's inner wall by high-temperature molten steel and extends the service life of the nozzle.

Claims

1. A high-strength submersible sprue, comprising a sprue body and a frame mechanism, characterized in that: The main body of the water inlet is composed of a bowl-shaped section (1), a transition section (2), and a slag line section (3). The bowl-shaped section (1) is fixedly connected to the top of the transition section (2), and the slag line section (3) is fixedly connected to the bottom of the transition section (2). The skeleton mechanism is buried inside the bowl-shaped section (1), the transition section (2), and the slag line section (3). The skeleton mechanism is composed of reinforcing rings (4) and reinforcing ribs (5). The number of reinforcing rings (4) and reinforcing ribs (5) is set to multiple. The multiple reinforcing rings (4) are arranged in a straight line array from top to bottom, and the multiple reinforcing ribs (5) are arranged in a ring array around the reinforcing rings (4). Each reinforcing rib (5) fixes the multiple reinforcing rings (4) together from top to bottom.

2. The high-strength submersible nozzle according to claim 1, characterized in that: The bowl-shaped section (1), the transition section (2), and the slag line section (3) are integrally formed and are all made of aluminum zirconium carbon material.

3. The high-strength submersible nozzle according to claim 1, characterized in that: The multiple reinforcing rings (4) and the multiple reinforcing ribs (5) are also integrally formed, and the reinforcing rings (4) and the reinforcing ribs (5) are both made of zirconium oxide material.

4. The high-strength submersible nozzle according to claim 1, characterized in that: An impact-resistant ring (6) is fixedly connected to the top of the bowl-shaped section (1), and the impact-resistant ring (6) is made of silicon nitride material.

5. The high-strength submersible nozzle according to claim 1, characterized in that: The inner walls of the bowl-shaped section (1), the transition section (2) and the slag line section (3) are all fixedly connected with anti-erosion liners (7), which are made of silicon nitride material.

Images