System for blowing argon from bottom of furnace body to reduce microelements in metal solution

Abstract

The utility model discloses a system for blowing argon from the bottom of a furnace body to reduce microelements in a metal solution, which comprises the furnace body and a pipeline connected to the bottom of the furnace body, the other end of the pipeline is connected in parallel with an argon gas station and a compressed air station, and the argon gas station and the compressed air station are respectively connected with a pressure flow regulating valve and a regulating valve; the regulating valve is controlled by a computer which is connected with a program control cabinet through electric signals. The system can effectively work in high-temperature, high-humidity, high-altitude and other special environments, argon is accurately blown from the bottom of the furnace bottom by automatically controlling supply and flow adjustment of argon, gas in a metal solution is efficiently removed, alloy microelements are reduced, the material performance is remarkably improved, operation is easy and convenient, and good application prospects are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of smelting equipment technology, specifically relating to a system for blowing argon from the bottom of the furnace to reduce trace elements in the metal solution. Background Technology

[0002] When smelting metals under special conditions such as high temperature, high humidity, and high altitude, a large amount of gas often dissolves in the molten metal, and the material contains excessive trace alloying elements, which seriously affects the performance of the metal material. Current smelting furnaces have limitations in handling these problems and cannot efficiently remove gases from the molten metal or reduce trace alloying elements.

[0003] In actual metal smelting operations, for cost control and efficiency improvement, metal smelting is generally carried out first in an atmospheric environment. Once the metal is completely melted, the container is covered and the process is transferred to vacuum smelting. While this method shortens melting time and reduces costs, during atmospheric smelting, the metal is in direct contact with air. The high humidity and high gas content in the alloy solution make it easy for trace elements from the air to penetrate the alloy, reacting with metal elements to form oxides and nitride inclusions. This severely affects alloy performance and reduces quality and reliability.

[0004] Utility model patent CN203393183U discloses a bottom argon blowing control device for a steel ladle. This device utilizes a combination of various instrument valves to control the argon blowing flow rate at the bottom of the ladle. It achieves high precision, a wide range, and accurate real-time online display of gas flow rate and pressure parameters. The device allows for simple operation to meet process requirements for argon blowing pressure and flow rate. However, the complex connections between the valves make it prone to operational errors by unfamiliar operators, potentially affecting product quality. Utility Model Content

[0005] To address the aforementioned problems, this invention aims to provide a system for blowing argon from the bottom of the furnace to reduce trace elements in the molten metal.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a system for blowing argon from the bottom of a furnace to reduce trace elements in a metal solution, comprising a furnace body, a pipe connected to the bottom of the furnace body, and an argon station and a compressed air station connected in parallel at the other end of the pipe, wherein the argon station and the compressed air station are respectively connected to a pressure and flow regulating valve and a regulating valve.

[0007] The regulating valve is controlled by a computer, which is connected to the program control cabinet via electrical signals.

[0008] Furthermore, the pipeline is a three-way pipe, with the first pipeline connected to the furnace body and furnace bottom, the second pipeline connected to the argon station, and the third pipeline connected to the regulating valve.

[0009] Furthermore, a pressure and flow regulating valve is installed on the second pipeline, which consists of a flow regulating valve and a pressure regulating valve.

[0010] Furthermore, the flow regulating valve and the pressure regulating valve are each equipped with a display device.

[0011] Furthermore, the display device includes, but is not limited to, a ruler and a dial indicator.

[0012] Furthermore, the regulating valve is connected to a compressed air inlet pipe and an electrical signal line. The other end of the compressed air inlet pipe is connected to the compressed air station, and the other end of the electrical signal line is connected to the electrical signal cabinet.

[0013] Furthermore, the computer terminal is equipped with buttons, and the computer terminal is connected to the program control cabinet via electrical signals, while the program control cabinet is connected to the electrical signal cabinet via electrical signals.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. This system can work effectively in special environments such as high temperature, high humidity, and high altitude. By automatically controlling the supply and flow rate of argon, it can accurately blow argon from the bottom of the furnace, efficiently remove gas from the molten metal, reduce trace elements in the alloy, significantly improve material performance, and is easy to operate, with good application prospects.

[0016] 2. This system has a display device on the regulating valve, which can display the pressure and flow values ​​in real time, facilitating precise control. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the specific embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a system diagram of the present invention, which uses argon blowing from the bottom of the furnace to reduce trace elements in the molten metal.

[0019] Figure 2 This is a schematic diagram of a pressure and flow regulating valve.

[0020] In the diagram, 1-computer; 2-program control cabinet; 3-electrical signal cabinet; 4-compressed air station; 5-regulating valve; 6-argon station; 7-pressure and flow regulating valve; 8-furnace body; 9-pipeline; 71-flow regulating valve; 72-pressure regulating valve. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. However, it should not be construed that the scope of the subject matter of the present invention is limited to the following embodiments. Any modifications, substitutions and alterations made based on ordinary technical knowledge and conventional means in the art without departing from the above-described technical concept of the present invention are included within the scope of the present invention.

[0022] Reference Figure 1 This utility model provides an innovative combined system that uses a system with automatic argon control and flow regulation to blow argon from the bottom of the furnace, thereby removing gas from the molten metal in the smelting furnace and reducing trace elements in the alloy, thus improving material performance.

[0023] The system mainly includes a furnace body 8, a computer display screen 1, a program control cabinet 2, an electrical signal cabinet 3, compressed air related components, a pressure and flow regulating valve 7, and an argon supply station 6. A pipe 9, a three-way connector, is connected to the bottom of the furnace body 8. The first pipe connects to the furnace bottom of the furnace body 8, the second pipe connects to the argon station 6, and the third pipe connects to the regulating valve 5. The second pipe is equipped with the pressure and flow regulating valve 7, which consists of a flow regulating valve 71 and a pressure regulating valve 72. Both the flow regulating valve 71 and the pressure regulating valve 72 are equipped with display devices. The flow regulating valve 71 is equipped with a flow meter, which is a round tube with graduations. The pressure regulating valve 72 is equipped with a pressure meter. When argon needs to be purged into the furnace, the argon purging button is first clicked on the display screen of the computer 1. The program control cabinet 2 transmits an electrical signal to the electrical signal cabinet 3, which then sends an electrical signal back to the regulating valve 5. Upon receiving this signal, the regulating valve 5 uses it as a switch to open the gas pressure, thereby driving the main valve. Argon gas is supplied into the furnace through argon gas station 6. At the same time, by controlling the pressure regulating valve 72 and the flow regulating valve 71 and observing the display device, the pressure and flow rate of argon gas can be precisely adjusted to meet different smelting requirements.

[0024] The principle of an electrical signal triggering a compressed air control valve is as follows:

[0025] When an electrical signal is transmitted to regulating valve 5, the electromagnetic component (such as a solenoid valve) inside regulating valve 5 responds according to the command of the electrical signal. If it is an open signal, the electromagnetic component actuates, opening the compressed air passage, allowing compressed air to enter the subsequent pneumatic system or equipment through regulating valve 5; if it is a close signal, the electromagnetic component blocks the compressed air passage, stopping the air supply. The electrical signal triggers the compressed air control valve 5 to control its opening and closing. Install this system on the smelting furnace and connect all components. During the smelting process, operate the argon control program on the computer display screen as needed. Signals from the program control cabinet 2 sequentially control the operation of each component, causing argon to be blown into the molten metal from the bottom of the furnace according to the set pressure and flow rate. During the argon blowing process, the argon parameters can be adjusted in real time through the pressure and flow regulating valves to achieve the best gas removal and reduction of trace elements in the alloy, thereby improving the performance of the metal material.

[0026] The device provided by this utility model can work effectively in special environments such as high temperature, high humidity, and high altitude. By automatically controlling the supply and flow rate of argon, it can accurately blow argon from the bottom of the furnace, efficiently remove gas from the metal solution, reduce trace elements in the alloy, significantly improve material performance, and is easy to operate, with good application prospects.

[0027] The above provides a detailed description of the system for reducing trace elements in molten metal by blowing argon from the bottom of the furnace, as provided by this utility model. Specific examples have been used to illustrate the structure and working principle of this utility model. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of this utility model.

Claims

1. A system for blowing argon from the bottom of a furnace to reduce trace elements in a molten metal, characterized in that: It includes a furnace body (8), a pipe (9) connected to the bottom of the furnace body (8), and an argon station (6) and a compressed air station (4) connected in parallel at the other end of the pipe (9). The argon station (6) and the compressed air station (4) are respectively connected to a pressure and flow regulating valve (7) and a regulating valve (5). The regulating valve (5) is controlled by the computer (1), which is connected to the program control cabinet (2) via electrical signals.

2. The system for blowing argon from the bottom of the furnace to reduce trace elements in the molten metal, as described in claim 1, is characterized in that: The pipe (9) is a three-way pipe. The first pipe is connected to the furnace bottom of the furnace body (8), the second pipe is connected to the argon station (6), and the third pipe is connected to the regulating valve (5).

3. The system for blowing argon from the bottom of the furnace to reduce trace elements in the molten metal, as described in claim 2, is characterized in that: The second pipeline is equipped with a pressure and flow regulating valve (7), which consists of a flow regulating valve (71) and a pressure regulating valve (72).

4. The system for blowing argon from the bottom of the furnace to reduce trace elements in the molten metal, as described in claim 3, is characterized in that: The flow regulating valve (71) and the pressure regulating valve (72) are respectively equipped with display devices.

5. The system for blowing argon from the bottom of the furnace to reduce trace elements in the molten metal, as described in claim 4, is characterized in that: The display device includes, but is not limited to, a ruler and a dial indicator.

6. The system for blowing argon from the bottom of the furnace to reduce trace elements in the molten metal, as described in claim 1, is characterized in that: The regulating valve (5) is connected to a compressed air inlet pipe and an electrical signal line. The other end of the compressed air inlet pipe is connected to the compressed air station (4), and the other end of the electrical signal line is connected to the electrical signal cabinet (3).

7. The system for blowing argon from the bottom of the furnace to reduce trace elements in the molten metal, as described in claim 1, is characterized in that: The computer (1) is equipped with a button. The computer (1) is connected to the program control cabinet (2) via an electrical signal. The program control cabinet (2) is connected to the electrical signal cabinet (3) via an electrical signal.

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