Slab stopper argon blowing pipe fixing device
Through the fixing devices of metal hoses, wire joints and hard pipes, the problem of poor sealing of traditional argon blowing pipes is solved, and stable communication and efficient argon gas transportation are achieved between the intermediate chartered vehicle and the plug rod, ensuring the argon flow rate. Consistency and reliability of the equipment.
Patent Information
- Application Number
- CN202420129823.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-18
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-01-18
AI Technical Summary
The connection method of the plug-in rod blowing argon tube in traditional slab continuous casting is poor in sealing, resulting in argon leakage and insufficient argon flow, which cannot meet the argon blowing demand.
The fixing device of metal hose, wire adapter joint and hard pipe is adopted. Through the structure and connection method of metal hose and wire adapter joint and hard pipe, stable and reliable communication between the intermediate chartered vehicle and the plug rod is achieved, and sealing is enhanced to ensure The argon flow rate is consistent with the set value.
It improves the sealing and flow consistency of argon, reduces the equipment leakage failure rate, and ensures the efficient operation and durability of the device under various operating conditions.
Smart Images
Figure CN222288787U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel continuous casting equipment, in particular to a slab stopper rod argon blowing tube fixing device. Background Art
[0002] The stopper rod is an important component for controlling the flow rate of molten steel from the continuous casting tundish to the continuous casting crystallizer and the liquid level height of the crystallizer. It flushes away the solid impurities deposited on the inner wall of the nozzle by blowing argon gas, and absorbs the solid impurities in the molten steel in the nozzle to improve the quality of the molten steel.
[0003] The stopper rod should be connected to argon gas for argon blowing to prevent blockage of the water inlet of the tundish. The argon blowing pipe for the tundish stopper rod currently used is argon blowing after the stopper rod is connected. In the traditional slab continuous casting process of steel mills, the connection method of the argon blowing pipe is usually to align the ends of the two pipes with the same material and inner surface grade, and then fix them with nuts, and nest the nuts in the butt joint of the two pipes.
[0004] The inventors found during implementation that the connection method of the argon blowing pipeline in the above-mentioned prior art has poor sealing performance, which easily leads to leakage of the argon gas blown into the stopper rod. The argon gas flow rate is always less than the set value and cannot meet the demand for argon blowing. Utility Model Content
[0005] The embodiment of the present application solves the technical problems of poor sealing and easy leakage of argon gas in the prior art argon blowing pipeline by providing a slab plug rod argon blowing pipe fixing device.
[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions: a slab stopper rod argon blowing tube fixing device, comprising a metal hose, a thread joint and a hard pipe, one end of the metal hose is installed on the middle ladle car, one end of the thread joint is a first docking part, and the other end is a second docking part, the first docking part is connected to the metal hose, the second docking part is connected to the hard pipe, and one end of the hard pipe can be installed on the stopper rod head.
[0007] Among them, the structure and connection method of the metal hose, threaded joint and hard pipe realize the stable and reliable connection between the tundish car and the stopper rod, and at the same time ensure the efficient operation and durability of the device under various working conditions. Compared with the existing connection method of the argon blowing pipeline, it has better sealing performance, which can ensure that the argon flow delivered to the inside of the stopper rod is basically consistent with the instrument setting value, reducing the equipment leakage failure rate.
[0008] Furthermore, the diameter of the first docking portion is consistent with the diameter of the second docking portion.
[0009] Furthermore, the diameter of the first docking portion is greater than the diameter of the second docking portion.
[0010] Furthermore, the metal hose is nested in the outer periphery of the first docking portion, and the metal hose and the first docking portion are interference fit.
[0011] Furthermore, the hard tube includes a connecting portion and a mounting portion, wherein the connecting portion is located at one end of the hard tube and is embedded in the outer periphery of the second docking portion, and the mounting portion can be mounted on the stopper rod head.
[0012] Furthermore, the diameter of the connecting portion is larger than the diameter of the mounting portion.
[0013] It can be seen from the above technical solutions that the utility model has at least the following technical effects or advantages:
[0014] The utility model realizes stable and reliable connection between the tundish car and the stopper rod through the structure and connection method of the metal hose, thread joint and hard pipe, and ensures the efficient operation and durability of the device under various working conditions. Compared with the existing connection method of argon blowing pipeline, it has better sealing performance, can ensure that the argon flow delivered to the inside of the stopper rod is basically consistent with the instrument setting value, and reduce the equipment leakage failure rate. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solution of the utility model, the following is a brief introduction to the drawings required for the description. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:
[0016] Figure 1 It is a structural schematic diagram of the utility model.
[0017] Explanation of the reference numerals: 1. Metal hose, 2. Thread joint, 201. First docking portion, 202. Second docking portion, 3. Hard pipe, 301. Connecting portion, 302. Installation portion. DETAILED DESCRIPTION
[0018] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.
[0019] The utility model relates to a slab stopper rod argon blowing pipe fixing device, which is used to ensure effective communication between the tundish car and the stopper rod. It mainly comprises a metal hose 1, a thread joint 2 and a hard pipe 3. Among them, one end of the metal hose 1 is firmly connected to the tundish car. The thread joint 2 is designed as a double docking part structure, the first docking part 201 is responsible for connecting with the metal hose 1, and the second docking part 202 is connected with the hard pipe 3. The other end of the hard pipe 3 is installed on the head of the stopper rod to realize the gas flow between the tundish car and the stopper rod.
[0020] In this embodiment, in order to ensure smooth connection and matching, the diameter of the first docking portion 201 is equal to the diameter of the second docking portion 202, or the diameter of the first docking portion 201 is slightly larger than the diameter of the second docking portion 202. This facilitates the matching of the metal hose 1 and the thread connector 2. Figure 1 As shown, when the thread connector 2 is connected to the metal hose 1, the metal hose 1 is nested in the outer periphery of the first docking part 201, and the metal hose 1 and the first docking part 201 are interference fit, thereby enhancing the sealing and reliability of the connection and reducing the failure rate of equipment leakage.
[0021] The structure of the hard tube 3 includes a connecting portion 301 and a mounting portion 302. The connecting portion 301 is located at one end of the hard tube 3 and is responsible for connecting with the thread connector 2. During the connection process, the connecting portion 301 can be nested in the periphery of the second docking portion 202 to further improve the sealing and reliability of the connection through interference fit.
[0022] In actual application, the diameter of the mounting portion 302 is smaller than the diameter of the connecting portion 301, and the mounting portion 302 is plugged into the head of the stopper rod, so that the hard pipe 3 can be connected to the tundish car through the threaded joint 2 and the metal hose 1. In this embodiment, the metal hose 1 and the hard pipe 3 are made of different materials, and the grades of their inner surfaces can also be different, so that the device can adapt to different working conditions. In addition, the hard pipe 3 can withstand high temperature radiation to ensure that the device can maintain performance in a high temperature environment.
[0023] The slab stopper rod argon blowing pipe fixing device provided by the utility model realizes stable and reliable connection between the tundish car and the stopper rod through the structure and connection mode of the metal hose 1, the thread joint 2 and the hard pipe 3, and at the same time ensures the efficient operation and durability of the device under various working conditions. Compared with the existing connection mode of the argon blowing pipeline, it has better sealing performance, can ensure that the argon gas flow delivered to the inside of the stopper rod is basically consistent with the instrument setting value, and reduce the equipment leakage failure rate.
[0024] In the description of the present utility model, the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the purpose of describing the present invention rather than requiring the present invention to be constructed or operated in a specific position, and therefore cannot be understood as limiting the present invention. The terms "connected" and "connected" in the present invention should be understood in a broad sense, for example, it can be a connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate component. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.
[0025] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in their embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novelties disclosed herein.
Claims
1. A slab stopper rod argon blowing pipe fixing device, characterized in that: It includes a metal hose, a thread joint and a hard pipe. One end of the metal hose is installed on the tundish car, one end of the thread joint is a first docking part, and the other end is a second docking part. The first docking part is connected to the metal hose, and the second docking part is connected to the hard pipe. One end of the hard pipe can be installed on the head of the stopper rod.
2. A slab stopper rod argon blowing pipe fixing device according to claim 1, characterized in that: The pipe diameter of the first docking portion is consistent with the pipe diameter of the second docking portion.
3. The slab stopper rod argon blowing pipe fixing device according to claim 1, characterized in that: The diameter of the first docking portion is greater than the diameter of the second docking portion.
4. A slab stopper rod argon blowing pipe fixing device according to claim 2 or 3, characterized in that: The metal hose is nested in the outer periphery of the first butt joint portion, and the metal hose and the first butt joint portion are interference fit.
5. The slab stopper rod argon blowing pipe fixing device according to claim 4, characterized in that: The hard tube comprises a connecting portion and a mounting portion, wherein the connecting portion is located at one end of the hard tube and is nested in the outer periphery of the second docking portion, and the mounting portion can be mounted on the stopper rod head.
6. A slab stopper rod argon blowing pipe fixing device according to claim 5, characterized in that: The pipe diameter of the connecting portion is larger than the pipe diameter of the mounting portion.