A leak detection mechanism for aluminum liquid flow channel

Abstract

This utility model relates to an aluminum leakage detection mechanism below an aluminum molten metal flow channel. It includes a dike located below the flow channel, and a temperature sensor installed within the dike. The temperature sensor comprises a temperature-sensing cable laid on the bottom surface inside the dike. One end of the temperature-sensing cable is connected to a terminal processor, and the other end is connected to a signal processor. This utility model has a simple structure, is easy to install and implement, and has good adaptability. It can quickly and reliably detect aluminum leakage in the flow channel and trigger an alarm, improving safety, enabling early warning and emergency response, effectively ensuring safe production in the smelting workshop, and avoiding major losses.

Description

Technical Field

[0001] This utility model relates to the field of aluminum processing technology, and in particular to a leak detection mechanism for aluminum liquid flow channel. Background Technology

[0002] During converter operations in aluminum melting furnaces and double-chamber furnaces, aluminum molten metal leaks may occur due to factors such as damaged converter inlet plugs, poor tap seals, or structural failures in the converter flow channels. Because molten aluminum is hot and highly fluid, a large leak can easily escalate rapidly, seriously threatening operator safety and potentially burning surrounding cables, electrical equipment, and hydraulic pipelines, leading to equipment failure, prolonged downtime, and high repair costs. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a simple and easy-to-install aluminum leakage detection mechanism under the aluminum liquid flow channel, which can quickly and reliably detect aluminum leakage in the flow channel and trigger an alarm, thereby improving safety.

[0004] This utility model is implemented using the following scheme: an aluminum leakage detection mechanism below an aluminum liquid flow channel, including a dike located below the aluminum liquid flow channel, a temperature detector installed inside the dike, the temperature detector including a temperature sensing cable laid on the bottom surface inside the dike, one end of the temperature sensing cable being connected to a terminal processor and the other end being connected to a signal processor.

[0005] Furthermore, the temperature-sensing cable is laid in a sinusoidal waveform and is fixed to the bottom surface of the cofferdam by a U-shaped clamp.

[0006] Furthermore, the distance between adjacent wave crests of the temperature-sensing cable is no greater than 1.8m, the laying length ranges from 10m to 400m, and the bending radius is greater than 150mm.

[0007] Furthermore, the terminal processor is connected to a test line.

[0008] Furthermore, the temperature sensor is electrically connected to the PLC controller, and the PLC controller is electrically connected to an alarm.

[0009] Compared with the prior art, the present invention has the following advantages: The present invention has a simple structure, is easy to install and implement, has good adaptability, can quickly and reliably detect aluminum melt leakage in the casting trough and alarm, improve safety, realize early warning and emergency linkage, effectively ensure safe production in the casting workshop and avoid major losses.

[0010] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below through specific embodiments and related drawings. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the aluminum leakage detection mechanism according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the aluminum leakage detection mechanism according to an embodiment of this utility model; Figure 3 This is a schematic diagram of the temperature sensing cable structure of the temperature sensing detection according to an embodiment of this utility model.

[0012] The numbers in the diagram are explained as follows: 100-aluminum liquid flow channel, 200-cofferdam, 300-temperature detector, 310-temperature sensing cable, 320-terminal processor, 330-signal processor, 400-test line. Detailed Implementation

[0013] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0014] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0015] like Figures 1-3 As shown, an aluminum leakage detection mechanism below an aluminum molten metal flow channel includes a dike 200 located below the aluminum molten metal flow channel 100. A temperature sensor 300 is installed inside the dike. The temperature sensor 300 includes a temperature-sensing cable 310 laid on the bottom surface inside the dike. One end of the temperature-sensing cable is connected to a terminal processor 320, and the other end is connected to a signal processor 330. The temperature sensor 300 is a cable-type non-resettable constant-temperature sensor, model JTW-LD-PTA200 / 105, with an operating voltage of DC24V and an alarm temperature of 105℃±10%. When aluminum molten metal leaks from the flow channel, the temperature-sensing cable comes into contact with the leaking aluminum molten metal. The cable heats up, causing a change in the resistivity of the NTC thermistor material on the cable. This results in a change in the resistance between the two connected metal wires. When the temperature reaches the set value, a short circuit occurs at the switch terminal, and the signal processor detects this change and issues an alarm. This aluminum leakage detection agency can establish a rapid and reliable aluminum liquid leakage detection and alarm mechanism, enabling early warning and emergency response, which is an urgent need to ensure safe production in the smelting and casting workshop and avoid major losses.

[0016] In this embodiment, the signal processor's RESET button operation or manual power-off reset of the detector can reset the detector's fire alarm or fault information. The signal processor outputs a normally closed passive contact signal.

[0017] In this embodiment, the temperature sensing cable is laid in a sinusoidal waveform and is fixed to the bottom surface of the cofferdam by a U-shaped clamp. The two ends of the U-shaped clamp are fixed to the bottom surface of the cofferdam by screws or steel nails.

[0018] In this embodiment, the distance between adjacent wave crests of the temperature sensing cable is no greater than 1.8m, the laying length ranges from 10m to 400m, and the bending radius is greater than 150mm.

[0019] In this embodiment, the terminal processor is connected to a test line 400. When testing is required, molten aluminum is simulated to leak onto the test line, and it can be observed whether the signal processing triggers an aluminum leakage alarm. After the alarm is triggered, the alarm information is uploaded to the furnace PLC through a passive output node.

[0020] In this embodiment, the temperature sensor is electrically connected to the PLC controller, and the PLC controller is electrically connected to an alarm. The PLC controller can be the PLC controller of the furnace group, and it is integrated with the furnace group's safety alarm. The temperature sensor 300 outputs a passive contact signal to the PLC controller of the furnace group, triggering a safety audible and visual alarm in the furnace group's main control room. The PLC controller can connect to multiple sets of temperature sensors for different aluminum liquid flow channels, such as... Figure 2 As shown.

[0021] Unless otherwise stated, if any of the technical solutions disclosed in this utility model discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is merely one among many feasible numerical values ​​that has a more obvious or representative technical effect. Because there are many numerical values, it is impossible to list them all. Therefore, this utility model discloses only some numerical values ​​to illustrate the technical solutions of this utility model. Furthermore, the numerical values ​​listed above should not constitute a limitation on the scope of protection of this utility model.

[0022] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured by integral molding using a casting process) (except where it is obviously impossible to use an integral molding process).

[0023] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this utility model above include states or shapes that are similar to, close to, or approximate with them.

[0024] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0025] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A leakage detection mechanism below an aluminum molten metal flow channel, characterized in that: It includes a dike located below the aluminum liquid flow channel, and a temperature sensor is installed inside the dike. The temperature sensor includes a temperature sensing cable laid on the bottom surface inside the dike. One end of the temperature sensing cable is connected to a terminal processor, and the other end is connected to a signal processor.

2. The aluminum leakage detection mechanism below the aluminum liquid flow channel according to claim 1, characterized in that: The temperature-sensing cable is laid in a sinusoidal waveform and is fixed to the bottom of the cofferdam by a U-shaped clamp.

3. The aluminum leakage detection mechanism below the aluminum liquid flow channel according to claim 1, characterized in that: The distance between adjacent wave crests of the temperature-sensing cable is no more than 1.8m, the laying length ranges from 10m to 400m, and the bending radius is greater than 150mm.

4. The aluminum leakage detection mechanism below the aluminum liquid flow channel according to claim 1, characterized in that: The terminal processor is connected to a test line.

5. The aluminum leakage detection mechanism below the aluminum liquid flow channel according to claim 1, characterized in that: The temperature sensor is electrically connected to the PLC controller, and the PLC controller is electrically connected to an alarm.

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