Argon filling safety device for preventing leakage of high-temperature molten liquid in titanium sponge production

Abstract

The utility model discloses a sponge titanium production prevents high temperature molten liquid leakage's argon filling safety device, including manual valve, pressure sensor, automatic valve, automatic valve, foot valve, the pressure sensor gathers reactor internal pressure and pressure difference, and then control valve, foot valve passes through pressure conversion control valve, and manual valve is the valve of operator normal use. The utility model patent can be through the series connection design of automatic valve and manual valve, combines pressure sensing and gravity response control, realizes the intelligent management of argon filling process. Automatic valve opens and closes according to preset pressure threshold value, and manual valve needs artificial treading operation, ensures " person leaves valve breakage", and the device simple structure, high safety can effectively put an end to the leakage accident caused by human error.

Description

Technical Field

[0001] This utility model relates to the field of metal smelting equipment technology, specifically to an argon-filling safety device for preventing leakage of high-temperature molten liquid during the production of sponge titanium. Background Technology

[0002] In the production of sponge titanium, accidents caused by leakage of high-temperature molten liquid frequently occur during the steaming process, resulting in personal injury and equipment damage. While existing technologies require two people to be present and a designated person to purge argon during the discharge of magnesium chloride or the ignition process, the reduced emergency response capability of operators under low-load conditions makes them prone to negligence, such as leaving valves open or argon purging pipes unremoved, leading to accidents. These problems not only affect production efficiency but also significantly reduce system reliability. Therefore, there is an urgent need for a safety device that can fundamentally prevent accidents caused by human error. Utility Model Content

[0003] To address the problem of argon filling valves not closing due to human error in existing technologies, this invention provides a dual-valve safety device that combines automatic control and manual operation. It achieves intelligent management of the argon filling process through pressure monitoring and gravity sensing, ensuring operational safety.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] An argon-filling safety device for preventing leakage of high-temperature molten liquid in the production of sponge titanium includes a manual valve connected in series on an argon gas pipeline; an automatic valve A and an automatic valve B are connected in parallel at the front end of the argon gas pipeline, the automatic valve A is connected to a pressure sensor, and the automatic valve B is equipped with a gravity-sensing foot valve.

[0006] The beneficial effects of using the above technical solution are:

[0007] (1) Intrinsically safe design: By combining automatic valves and pressure sensors, the leakage of high-temperature molten liquid caused by human error is eliminated in essence, which significantly improves the safety of the production process.

[0008] (2) High reliability: Through redundant design, dynamic voltage regulation and gated clock technology, the system can maintain high reliability operation in low power consumption mode.

[0009] (3) Human-computer interaction optimization: The design of the foot switch ensures the strict implementation of the "dedicated personnel argon filling" operation, further enhancing on-site safety.

[0010] (4) Economy and practicality: The device is simple in design, low in cost, easy to promote and apply, and can effectively reduce safety risks and economic losses in the production process of sponge titanium. Attached Figure Description

[0011] Figure 1 This is a simplified structural diagram of the device.

[0012] In the diagram: 1-Foot pedal valve, 2-Pressure sensor 2, 3-Automatic valve A, 4-Automatic valve B, 5-Manual valve, 6-Argon gas pipeline.

[0013] Figure 2 Flowchart of the working logic of the argon purging safety device. Detailed Implementation

[0014] The present invention will be further described in detail below with reference to the accompanying drawings. Figure 1 and Figure 2 As shown, the argon filling safety device of this utility model includes a manual valve 5, a pressure sensor 2, an automatic valve A3, an automatic valve B4, and a foot valve 1. Automatic valves 4 and 3 are connected in parallel at the front end of the argon pipeline 6. The pressure sensor 2 is used to monitor the pressure of the magnesium chloride tube and the reactor in real time and transmits the signal to the automatic valve 4. The automatic valve 4 determines whether argon filling is safe based on a preset pressure threshold logic and controls the opening and closing of the automatic valve 4.

[0015] During normal argon purging, the operator clicks the switch of automatic valve B4, opens manual valve 5, and within 3 seconds checks whether the pressure in the magnesium chloride tube is ≥90~100 kPa and whether the pressure inside the reactor is ≤3~6 kPa. If the conditions are met, automatic valve B4 remains open for argon purging; if the conditions are not met, automatic valve 1 automatically closes. When discharging magnesium chloride or igniting, the operator must step on foot valve 1. Automatic valve A3 opens upon receiving the signal, and argon purging begins. When the operator leaves, the foot valve automatically closes due to gravity sensing, ensuring strict adherence to the "dedicated personnel argon purging" procedure.

[0016] Further description of this utility model: This utility model considers redundant design and fault tolerance mechanism to improve the reliability and fault tolerance of the system. It adopts a series automatic valve A3 and automatic valve B4 and manual valve 5 design, and automatic valve B4 is set in parallel with automatic valve A3 to ensure that safety is still guaranteed when automatic valve A3 and automatic valve B4 fail.

Claims

1. A safety device for preventing leakage of high-temperature molten liquid in sponge titanium production by argon filling, comprising a manual valve (5) connected in series on an argon pipeline (6); an automatic valve A (4) and an automatic valve B (3) are connected in parallel at the front end of the argon pipeline (6), the automatic valve A (4) is connected to a pressure sensor (2), and the automatic valve B (3) is equipped with a gravity-sensing switch foot valve (1).

2. The argon-filling safety device for preventing leakage of high-temperature molten liquid in sponge titanium production according to claim 1, characterized in that: The automatic valves A (4) and B (3) are connected in series with the manual valve (5).

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