Centralized monitoring control device for guide rod parameters of aluminum electrolysis cell

Abstract

The utility model discloses a centralized monitoring control device for aluminum electrolysis cell guide rod parameters, which comprises a controller, and a touch screen, a switching power supply, a relay module, a guide rod detection box and a cell control machine which are connected with the controller, the controller comprises a microprocessor, and a serial port screen module, a power supply module, an output interface and a 485 communication interface which are connected with the microprocessor, the serial port screen module is connected with the touch screen, the power supply module is connected with the switching power supply, the output interface is connected with the relay module, and the 485 communication interface is connected with the guide rod detection box and the groove control machine; the touch screen is used for inputting commands to the controller, the controller sends the commands to the guide rod detection boxes through the 485 communication interface, the guide rod detection boxes are controlled to collect guide rod parameters of the aluminum electrolysis cell and send the collected guide rod parameters to the cell control machine, and the collected guide rod parameters are displayed on the touch screen. The device is simple to operate and high in automation degree and intelligent level, and the production efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of aluminum electrolysis cells, and in particular to a centralized monitoring and control device for the parameters of the guide rod of an aluminum electrolysis cell. Background Technology

[0002] The aluminum electrolytic cell is the core of aluminum industrial production, and the anode rod is the key component of the aluminum electrolytic cell. By measuring the equidistant voltage drop and temperature (rod parameters) of the anode rod, the operating current of the anode rod can be calculated. The operating status of the aluminum electrolytic cell can be determined based on the current distribution of the anode rod; therefore, online monitoring of the rod parameters is essential.

[0003] Traditionally, monitoring the parameters of aluminum electrolytic cell guide rods requires manual operation. A person holds a steel rod with a multimeter attached and measures the voltage drop across each anode guide rod at equal intervals. The measured voltage is then converted to determine the anode current. This method is time-consuming, labor-intensive, and involves asynchronous testing, resulting in significant errors and severely impacting the efficiency, accuracy, and reliability of aluminum electrolytic cell guide rod parameter monitoring.

[0004] Currently, there are some existing monitoring and control devices for the parameters of aluminum electrolytic cell guide rods, but most of these devices suffer from low levels of automation and insufficient intelligence.

[0005] Therefore, we need to design a centralized monitoring and control device for the parameters of the aluminum electrolysis cell guide rod to solve the above problems. Utility Model Content

[0006] According to one aspect of the present invention, a centralized monitoring and control device for the parameters of the guide rod of an aluminum electrolytic cell is provided, including a controller, and a touch screen, a switching power supply, a relay module, a guide rod detection box and a cell control machine connected to the controller;

[0007] The controller includes a microprocessor, a serial port screen module, a power module, an output interface, and a 485 communication interface connected to the microprocessor. The serial port screen module is connected to a touch screen, the power module is connected to a switching power supply, the output interface is connected to a relay module, and the 485 communication interface is connected to a guide rod detection box and a slot control machine.

[0008] The touchscreen is used to input commands to the controller. The controller sends commands to each guide rod detection box through the 485 communication interface, controls the guide rod detection box to collect the guide rod parameters of the aluminum electrolysis cell and send the collected guide rod parameters to the cell control machine, and displays the collected guide rod parameters on the touchscreen.

[0009] In some implementations, the guide rod parameters include guide rod equidistant pressure drop and guide rod temperature.

[0010] In some embodiments, the centralized monitoring and control device for the aluminum electrolysis cell guide rod parameters further includes a server, which is connected to the controller;

[0011] The controller also includes a WiFi module, a 4G module, and an Ethernet module, all of which are connected to the microprocessor and to the server.

[0012] In some implementations, the controller further includes a data storage module connected to the microprocessor.

[0013] In some embodiments, the centralized monitoring and control device for the aluminum electrolytic cell guide rod parameters further includes an external storage device, which is connected to the controller;

[0014] The controller also includes an external storage module, which is connected to the microprocessor and to an external storage device.

[0015] In some embodiments, the centralized monitoring and control device for the aluminum electrolysis cell guide rod parameters further includes an indicator light, which is connected to a relay module, and the relay module is used to control the indicator light to turn on and off.

[0016] In some embodiments, the centralized monitoring and control device for the aluminum electrolytic cell guide rod parameters also includes an alarm device. If abnormal data is detected during the guide rod parameter monitoring process, the alarm device will be activated to issue an alarm and turn on the indicator light.

[0017] In some embodiments, the switching power supply is a 24V DC switching power supply.

[0018] In some implementations, the microprocessor is an STM32 microprocessor with an operating frequency of up to 180MHz.

[0019] In some implementations, the serial port screen module uses a RS-232 communication interface.

[0020] The beneficial effects of this utility model are as follows:

[0021] 1. This utility model connects to the guide rod detection box via a 485 communication interface, automatically acquiring the equidistant voltage drop and temperature data of the guide rods collected by the detection box, and intelligently calculating the working current of the guide rods based on the equidistant voltage drop and temperature data; it also connects to the tank control machine via the 485 communication interface to send the data of each guide rod to the tank control machine; and it connects to the touch screen via a 232 communication interface to complete functions such as parameter configuration, display, and command button operation, achieving good human-machine interaction; and it can send the guide rod data to the aluminum electrolysis plant server via WiFi, 4G, and Ethernet modules. This utility model is simple to operate, has a high degree of automation and intelligence, and greatly improves production efficiency.

[0022] 2. This utility model will trigger an alarm if the data is abnormal during the monitoring of guide rod parameters, and can save all data during the monitoring process for subsequent retrieval, thus ensuring high precision and high reliability of aluminum electrolysis cell guide rod parameter monitoring. Attached Figure Description

[0023] Figure 1 This is a system functional block diagram of the present invention;

[0024] Figure 2 This is the power supply circuit of this utility model;

[0025] Figure 3 This is the two-channel output circuit of this utility model;

[0026] Figure 4 This is the data storage circuit of the present invention;

[0027] Figure 5 This is the serial port screen circuit of this utility model;

[0028] Figure 6 This is the WiFi module circuit of this utility model;

[0029] Figure 7 This utility model provides a 3-channel 485 communication circuit.

[0030] Figure 8 This is the main MCU circuit of this utility model. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings.

[0032] The present invention and its embodiments are described below. This description is not restrictive, and the actual embodiments are not limited thereto. In short, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

[0033] refer to Figure 1 This utility model provides a centralized monitoring and control device for the parameters of guide rods in aluminum electrolysis cells, including a controller, and a touch screen (serial port screen), a switching power supply, a relay module, a guide rod detection box, and a cell control machine connected to the controller. The controller includes a microprocessor, and a serial port screen module, a power supply module, an output interface, and a 485 communication interface connected to the microprocessor. The serial port screen module is connected to the touch screen, the power supply module is connected to the switching power supply, the output interface is connected to the relay module, and the 485 communication interface is connected to the guide rod detection box and the cell control machine. The touch screen is used to input commands to the controller, and the controller sends commands to each guide rod detection box through the 485 communication interface to control the guide rod detection box to collect the parameters of the aluminum electrolysis cell guide rods and send the collected guide rod parameters to the cell control machine, and display the collected guide rod parameters on the touch screen.

[0034] The conductor parameters include the equidistant voltage drop and temperature of the conductor. The switching power supply is a 24V DC switching power supply. The microprocessor is an STM32 microprocessor with an operating frequency of 180MHz. The serial port module uses a RS-232 communication interface.

[0035] The centralized monitoring and control device for the parameters of the aluminum electrolytic cell guide rod also includes a server, which is connected to the controller; the controller also includes a WiFi module, a 4G module, and an Ethernet module, all of which are connected to a microprocessor and the server.

[0036] The controller also includes a data storage module, which is connected to the microprocessor.

[0037] The centralized monitoring and control device for the parameters of the aluminum electrolytic cell guide rod also includes an external storage device, which is connected to the controller; the controller also includes an external storage module, which is connected to the microprocessor, and the external storage module is connected to the external storage device.

[0038] The centralized monitoring and control device for the aluminum electrolytic cell guide rod parameters also includes indicator lights, which are connected to a relay module. The relay module controls the indicator lights to turn on and off. The device also includes an alarm device; if abnormal data is detected during guide rod parameter monitoring, the alarm device will be activated, sounding an alarm and turning on the indicator lights.

[0039] refer to Figure 1-8 The functions, components, and related technical contents of the centralized monitoring and control device for the parameters of the aluminum electrolytic cell guide rod of this utility model are detailed as follows:

[0040] 1. Functional Description: The centralized monitoring and control device for aluminum electrolytic cell guide rod parameters mainly realizes the functions of real-time acquisition, real-time monitoring, data processing and storage, data uploading, multi-channel communication, external storage, and relay control of aluminum electrolytic cell guide rod parameters (equidistant voltage drop, guide rod temperature).

[0041] 2. This centralized monitoring and control device mainly consists of the following six parts:

[0042] (1) Human-machine interface: The RS-232 communication interface on the touch screen is used to set and save parameters with the controller MCU through the PELCO_D communication protocol, and the collected data such as the equidistant pressure drop of the guide rod, temperature and the calculated current are displayed on the touch screen in real time.

[0043] (2) Central processing unit (MCU): It adopts a high-performance 32-bit STM32 microprocessor with an operating frequency of up to 180MHz. It has rich external interface units, high cost performance, 2MB of internal storage, and up to 21 communication interfaces, which can read and write at the same time. When communicating with the human-machine interface via serial port, it adopts DMA data interaction mode, which does not occupy the MCU running time.

[0044] (3) Communication Interface: The system utilizes a high-performance serial port built into the MCU, four USARTs, and three RS-485 communication channels implemented by the four UARTs. Two RS-485 communication channels are used to collect the parameters of the aluminum electrolysis cell guide rods, and the other one RS-485 communication channel sends the collected guide rod parameters to the cell control machine. One WiFi communication channel can form a local area network with a router, one 4G communication channel, one Ethernet communication channel, and one RS-232 communication channel enable high-precision and rapid data acquisition and interaction.

[0045] (4) External interface section: 2 output interfaces, corresponding to 2 relay output interfaces, to control the on and off of the indicator lights.

[0046] (5) Power interface section: A 24V DC switching power supply is used to power the controller. The controller internally isolates and converts the 24V voltage into the 5V and 3.3V voltages required by the system circuit modules.

[0047] (6) Data storage section: The W25Q16 data storage chip with SPI interface is used to realize the function of saving the basic parameters of system operation. At the same time, a high-capacity memory can be connected to enhance the storage capacity.

[0048] 3. The operation steps of the centralized monitoring and control device for the parameters of the aluminum electrolytic cell guide rod are as follows:

[0049] Before starting, connect the following cables: DC 24V power supply, A-side and B-side control boxes (guide rod detection boxes), and connect the touch screen via a serial cable.

[0050] (1) Start-up: After the power supply is turned on, the device begins to establish communication and read the original parameters. The control box installed on the guide rod can be seen on the touch screen to see whether the device is communicating normally, and the guide rod series parameters are displayed on the screen.

[0051] (2) After the device is started, it can enter the guide rod parameter monitoring state.

[0052] Taking the completion of a monitoring and data upload action as an example, the specific steps are as follows:

[0053] (2-1) Activate the operation button on the touch screen and click the "All Motors Retract" button. This device sends a command to each guide rod detection box through the RS-485 interface. The detection box drives the stepper motor to work and feeds back data to this device in real time. Based on the feedback data, this device determines whether the motor has retracted into place and displays it on the touch screen.

[0054] (2-2) After all motors have retracted to their positions, click the "Extend All Motors" button. This device sends commands to each guide rod detection box via the RS-485 interface. The detection box drives the stepper motor to work. After the motor drives the contact to extend and contact the guide rod, it feeds back data to this device and begins to automatically collect the equidistant voltage drop and temperature of the guide rod. It also feeds back the Hall contact information and the collected parameters to this device in real time. This device can display the collected parameters of the guide rod on the touch screen.

[0055] (2-3) After the device collects the series parameters of the guide rod, it waits for other control commands. If there are no other control commands, the device will monitor the data of various parameters of the guide rod and compare them with the theoretical normal data. If abnormal data is found, an alarm will be issued and the indicator light will be turned on. If the data is within the normal range, the data will be stored and displayed on the touch screen as a bar chart.

[0056] (2-4) During the real-time monitoring of guide rod parameters, once the tank control machine or remote network data terminal requests data from the device, the device will install the corresponding communication format and commands and feed back the collected data to the terminal equipment in accordance with the protocol requirements.

[0057] (3) If the aluminum electrolytic cell needs to be switched or the busbar needs to be raised during the monitoring process, the control box needs to be operated first to return all motors and confirm.

[0058] It should be noted that theoretically, normal data can be set on the touchscreen interface or on the computer. If abnormal data is detected during guide rod parameter monitoring, the device will trigger an alarm and save all data from the monitoring process to an SD card for later retrieval. If remote viewing of the monitoring data is required, it can be uploaded to the server via a 4G module and viewed on a mobile device.

[0059] 4. Internal strategy of the centralized monitoring and control device for aluminum electrolysis cell guide rod parameters:

[0060] (1) Connect to the guide rod parameter detection box through RS-485 communication interface, and control the stepper motor to extend and retract in the form of commands through the detection box to obtain the equidistant voltage drop and temperature data of the aluminum electrolytic cell guide rod collected by the detection box; and calculate the working current of the guide rod through the equidistant voltage drop and temperature data.

[0061] (2) Communicate with the industrial touch screen through the RS-232 interface to complete the functions of parameter configuration, display and command button operation; and achieve good human-machine interaction.

[0062] (3) Communicate with the slot control system through the RS-485 interface and send the data of each guide rod to the digital slot control system.

[0063] (4) Communication can be made via 4G, WIFI or WLAN interfaces, and the guide rod data can be sent to the aluminum electrolysis plant server.

[0064] 5. Hardware circuit of the controller

[0065] The controller's hardware circuitry consists of a power supply circuit, two relay output circuits, a data storage circuit, a serial port display circuit, a WiFi module circuit, three RS-485 communication circuits, and a main MCU circuit. The power supply circuit primarily provides 5V and 3.3V voltages to the controller's internal circuitry. The two relay output circuits control the indicator lights to turn on and off. The data storage circuit stores operating parameters and basic configuration parameters. The serial port display circuit communicates with the touchscreen for data exchange. The WiFi module circuit establishes a local area network with a router for data communication. The three RS-485 communication circuits control the acquisition box to collect guide rod parameters and upload data to the slot controller. The main MCU circuit uses an STM32F429IGT6 as its core chip.

Claims

1. A centralized monitoring and control device for the parameters of a guide rod in an aluminum electrolysis cell, characterized in that, Includes a controller, and a touch screen, switching power supply, relay module, guide rod detection box and slot control machine connected to the controller; The controller includes a microprocessor, a serial port screen module, a power module, an output interface, and a 485 communication interface connected to the microprocessor. The serial port screen module is connected to a touch screen, the power module is connected to a switching power supply, the output interface is connected to a relay module, and the 485 communication interface is connected to a guide rod detection box and a slot control machine. The touchscreen is used to input commands to the controller. The controller sends commands to each guide rod detection box through the 485 communication interface, controls the guide rod detection box to collect the guide rod parameters of the aluminum electrolysis cell and send the collected guide rod parameters to the cell control machine, and displays the collected guide rod parameters on the touchscreen.

2. The centralized monitoring and control device for the parameters of the aluminum electrolytic cell guide rod according to claim 1, characterized in that, The guide rod parameters include the guide rod equidistant pressure drop and the guide rod temperature.

3. The centralized monitoring and control device for the parameters of the aluminum electrolytic cell guide rod according to claim 1, characterized in that, The centralized monitoring and control device for the aluminum electrolysis cell guide rod parameters also includes a server, which is connected to the controller; The controller also includes a WiFi module, a 4G module, and an Ethernet module, all of which are connected to the microprocessor and to the server.

4. The centralized monitoring and control device for the parameters of the aluminum electrolytic cell guide rod according to claim 1, characterized in that, The controller also includes a data storage module, which is connected to the microprocessor.

5. The centralized monitoring and control device for the parameters of the aluminum electrolytic cell guide rod according to claim 4, characterized in that, The centralized monitoring and control device for the aluminum electrolysis cell guide rod parameters also includes an external storage device, which is connected to the controller; The controller also includes an external storage module, which is connected to the microprocessor and to an external storage device.

6. The centralized monitoring and control device for the parameters of the aluminum electrolytic cell guide rod according to claim 1, characterized in that, The centralized monitoring and control device for the parameters of the aluminum electrolysis cell guide rod also includes an indicator light, which is connected to a relay module. The relay module is used to control the indicator light to turn on and off.

7. The centralized monitoring and control device for the parameters of the aluminum electrolytic cell guide rod according to claim 6, characterized in that, The centralized monitoring and control device for the aluminum electrolytic cell guide rod parameters also includes an alarm device. If abnormal data is detected during the guide rod parameter monitoring process, the alarm device will be activated to issue an alarm and turn on the indicator light.

8. The centralized monitoring and control device for the parameters of the aluminum electrolytic cell guide rod according to claim 1, characterized in that, The switching power supply is a 24V DC switching power supply.

9. The centralized monitoring and control device for the parameters of the aluminum electrolytic cell guide rod according to claim 1, characterized in that, The microprocessor used is an STM32 microprocessor with an operating frequency of 180MHz.

10. The centralized monitoring and control device for the parameters of the aluminum electrolytic cell guide rod according to claim 1, characterized in that, The serial port screen module uses a 232 communication interface.

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