A system and method for measuring two levels of electrolytic aluminum

Abstract

The present invention provides a system and method for measuring two levels of electrolytic aluminum, comprising: a testing device for detecting the temperatures of the electrolyte and aluminum liquid in an electrolytic cell, and obtaining corresponding heights according to different temperatures; a cylinder telescopic device for driving a shell-breaking hammer head to move up and down to open the inner shell surface of the electrolytic cell, and to penetrate the testing device into the electrolyte and aluminum liquid in the electrolytic cell; a transmission device for transmitting data detected by the testing device to a control system and a PC-end display storage device; a control system for controlling the cylinder telescopic device to operate, processing the data measured by the testing device, and forming a broken line statistical graph of the test data within one week; a PC-end display storage device for displaying the data detected by the testing device and the broken line statistical graph. The present invention not only improves the accuracy of test data and controls measurement errors caused by human factors, but also saves labor costs and time. The electrolytic cell operation data can be viewed at any time on site in the workshop, which is convenient for making technical adjustments.

Description

Technical Field

[0001] The invention belongs to the field of electrolytic aluminum technology control, and in particular discloses a system and method for measuring two levels of electrolytic aluminum. Background Art

[0002] Although there are many tools and inventions for measuring two levels (the height of electrolyte and aluminum liquid) in the current status of electrolytic aluminum production, the most commonly used method is still manual measurement. The person holding the rod uses an iron rod and a spirit level, and the person measuring uses a steel ruler to measure each unit one by one. In addition, the brightness and temperature of the workshop will affect the visual observation situation, resulting in many subjective factors affecting the measured data. When there are too many electrolytic cells in a workshop, the measurement time is very long, and personal tracking is required to test the cell temperature with a thermocouple, which requires at least 3 people and takes more than an hour. The work efficiency is low, the manpower is hugely wasted, and the per capita productivity is reduced. Some people use the upper measurement method, but the manpower required is the same as the above, which is more practical than the secondary startup cell. Therefore, when measuring the key technical parameter of the two levels, the more human interference is reduced, the difference will not be too large even if the unified tool is used. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the present invention aims to provide a system and method for measuring two levels of electrolytic aluminum, which can not only improve the accuracy of test data, but also save labor costs and time. The electrolytic cell operation data can also be viewed at any time on site in the workshop, and technical personnel can closely link the data with production practice on site to make technical adjustments and standardize operating methods.

[0004] In order to achieve the above object, the present invention is implemented through the following technical solution: a system for measuring two levels of electrolytic aluminum, characterized by comprising:

[0005] A testing device that detects the temperature of the electrolyte and aluminum liquid in the electrolytic cell and obtains the corresponding height according to different temperatures;

[0006] The cylinder telescopic device drives the shell hammer head to move up and down to open the inner shell surface of the electrolytic cell, and penetrates the test device into the electrolyte and aluminum liquid in the electrolytic cell;

[0007] a transmission device for transmitting data detected by the test device to a control system and a PC-side display storage device;

[0008] A control system for controlling the movement of the cylinder extension device, processing the data measured by the test device, and forming a broken line statistical graph of the test data within one week;

[0009] A PC display storage device that displays the data detected by the test device and the broken line statistical graph.

[0010] A system for measuring two levels of electrolytic aluminum according to claim 1, characterized in that: the cylinder telescopic device includes a first cylinder and a second cylinder, the first cylinder is connected to the testing device and drives it to move up and down, the second cylinder is connected to the shelling hammer head and drives it to move up and down, and a magnet is provided in the rear end cover of the second cylinder to attract the piston rod when the piston rises to the upper point position.

[0011] Furthermore, a vertical through hole for the testing device to extend into is provided at the center of the shell-breaking hammer head, and the testing device can move up and down in the vertical through hole under the action of the first cylinder.

[0012] Furthermore, the testing device is an optical fiber temperature sensor, and is arranged in a high-temperature superconducting protective shell made of high-temperature resistant ceramics.

[0013] Furthermore, the control system is a controller, which is connected to the control keys for controlling the extension and retraction of the first cylinder and the second cylinder; the PC-side display storage device is a PC with a display; and the transmission device is a connecting line.

[0014] Furthermore, one of the PC-side display storage devices is connected to one of the control systems or at least two of the control systems.

[0015] To achieve the above object, the present invention is implemented through another technical solution as follows: a method for measuring two levels of electrolytic aluminum using the above-mentioned system for measuring two levels of electrolytic aluminum, the steps of which are:

[0016] At the same time every day, the control system sequentially generates an action signal for controlling the action of the first cylinder and the action of the second cylinder;

[0017] The first cylinder pushes the shell hammer head downward and opens a gap of about 10-15 cm on the inner shell surface of the electrolytic cell before returning;

[0018] The second cylinder pushes the test device downward and inserts it into the electrolyte and aluminum liquid in the electrolytic cell. It is left to stand for 8-15 seconds to obtain the temperature of the electrolyte and aluminum liquid, and the corresponding height is obtained according to the different temperatures.

[0019] The test device sends the acquired data to the control system through the transmission device;

[0020] The control system processes the data obtained by the test device, and forms a broken line statistical graph of the test data within a week, and transmits the statistical graph and the data obtained by the test device to the PC display storage device for storage and display through the transmission device.

[0021] Furthermore, the action signals for controlling the action of the first cylinder and the action of the second cylinder are automatically generated by the control system or generated through a control key connected to the control system.

[0022] Furthermore, when the shelling hammer head moves downward, if the inner shell surface of the electrolytic cell is not hardened, the shelling hammer head can return when it contacts the electrolyte liquid surface. If the inner shell surface of the electrolytic cell is hardened, the shelling hammer head will not return until the inner shell surface of the electrolytic cell is opened.

[0023] Furthermore, when the first cylinder returns: when the piston rises to the upper point position, it will be attracted by the magnet in the rear end cover of the first cylinder. The suction force of the magnet overcomes its own weight to prevent the piston from moving downward under the action of the gravity of the shell hammer head. When gas pressure is passed through the piston, the magnetic force is overcome and the piston moves downward under the action of the gas pressure.

[0024] Beneficial effects of the present invention:

[0025] 1. The present invention realizes automatic measurement of two levels through the cooperation of a testing device, a cylinder expansion device, a transmission device, a control system and a PC-side display and storage device. This not only improves the accuracy of test data and controls measurement errors caused by human factors, but also saves labor costs and time. In addition, the electrolytic cell operation data can be viewed at any time on the workshop site. Technical personnel on site can closely link the data with production practice to make technical adjustments and standardize operating methods.

[0026] 2. In the present invention, the test device uses high-temperature resistant ceramics as a protective shell for the high-temperature superconductor to prevent the acidic electrolyte from corroding and rinsing the high-temperature resistant probe, ensuring the high sensitivity of the temperature-sensing optical fiber and being able to well convert the step temperature difference into the corresponding horizontal height.

[0027] 3. In the present invention, the testing device is located in the inner center of the shell hammer head, mainly to prevent the internal high-temperature ceramics and temperature-sensitive optical fibers from being easily damaged by other equipment during normal operation. In particular, the anodes of the electrolytic cell are frequently replaced. Without hard protection, the damage to them is very serious. Once damaged, the replacement and maintenance costs are relatively high.

[0028] 4. In the present invention, when the shell hammer head moves downward, if the inner shell surface of the electrolytic cell is not hardened, the shell hammer head can return when it contacts the electrolyte liquid surface. If the inner shell surface of the electrolytic cell is hardened, the shell hammer head will not return until the inner shell surface of the electrolytic cell is opened. This not only reduces the waste of compressed air, but also prevents the shell hammer head from being corroded and dissolved in the electrolyte for a long time, and also prevents the wear of the testing device.

[0029] 5. In the present invention, the control system is located in the control room of each workshop. At the same time every day, it will automatically send an action signal to make the entire system run. Of course, if you want to measure at any time, you can change to manual by pressing the control key. Pressing the control key can also be used for remote control and testing. After the data is confirmed to be uploaded, it is processed and transmitted to the PC display storage device.

[0030] 6. The present invention not only realizes unmanned measurement of electrolyte and aluminum levels, reduces the interference of subjective factors on the measurement of the two levels, but also improves the accuracy of the data, can better optimize process indicators, reduce manpower input, save labor costs and time, and improve work efficiency, but also can be remotely operated. By measuring the level with one button in the work area room, the two levels and tank temperature of the entire workshop can be obtained, providing a corresponding reference for unmanned workshops.

[0031] 7. The present invention can be installed on each electrolytic cell to display the process parameters of each cell. It can also be installed in a regional manner, with one installed in each work unit. Finally, all data can be collected uniformly to a PC display storage device. The corresponding electrolytic cell can be searched on the PC display storage device at any time to display its process parameters. It is easy to operate and facilitates centralized management.

[0032] In order to make the above and other objects, features and advantages of the present invention more clearly understood, preferred embodiments are given below with reference to the accompanying drawings for detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only three of the drawings of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0035] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0036] Figure 3 This is a flow chart of the execution procedure of the control system of the present invention.

[0037] In the figure: 1-shelling hammer head, 2-cylinder telescopic device, 3-PC display storage device, 4-control system, 5-transmission device, 6-testing device, 7-connecting frame; 21-first cylinder, 22-second cylinder. DETAILED DESCRIPTION

[0038] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0039] It should be understood that the various steps described in the method embodiments of the present invention can be performed in different orders. In addition, the method embodiments may include additional steps or omit the steps shown. The scope of the present invention is not limited in this respect.

[0040] The names of the messages or information exchanged between multiple devices in the embodiments of the present invention are only used for illustrative purposes and are not used to limit the scope of these messages or information.

[0041] See also Figure 1 The present invention provides a technical solution: a system for measuring two levels of electrolytic aluminum, characterized by comprising:

[0042] A testing device that detects the temperature of the electrolyte and aluminum liquid in the electrolytic cell and obtains the corresponding height according to different temperatures;

[0043] The cylinder telescopic device 2 drives the shell hammer head 1 to move up and down to open the inner shell surface of the electrolytic cell, and penetrates the test device into the electrolyte and aluminum liquid in the electrolytic cell;

[0044] The transmission device 5 transmits the data detected by the test device to the control system 4 and the PC-side display storage device 3;

[0045] A control system 4 for controlling the movement of the cylinder extension device 2, processing the data measured by the test device, and forming a line chart of the test data within a week;

[0046] A PC-side display storage device 3 displays the data detected by the test device and the broken line statistical graph.

[0047] In this embodiment, the cylinder telescopic device 2 includes a first cylinder 21 and a second cylinder 22. The first cylinder 21 is connected to the testing device and drives it to move up and down, wherein the first cylinder 21 and the second cylinder 22 are connected up and down, and the second cylinder 22 is connected to the shell hammer head 1 through the connecting frame 7. The first cylinder 21 is arranged on the connecting frame 7, so that when the second cylinder 22 drives the shell hammer head 1 to move up and down, it also drives the first cylinder 21 to move up and down. The second cylinder 22 is connected to the shell hammer head 1 and drives it to move up and down, and a magnet is provided in the rear end cover of the second cylinder 22 to adsorb the piston rod when the piston rises to the upper point position.

[0048] In this embodiment, a vertical through hole for the testing device to extend into is provided at the center of the shell-breaking hammer head 1 , and the testing device can move up and down in the vertical through hole under the action of the first cylinder 21 .

[0049] In this embodiment, the testing device is an optical fiber temperature sensor, and is arranged in a high-temperature superconducting protective shell made of high-temperature resistant ceramics; the height of the testing device can be designed according to the depth of the electrolytic cell furnace, and cannot be too long to exceed the total height, nor too short to reach the bottom of the furnace. It is best to stop automatically when it contacts the hard bottom surface, stay for 10 seconds to collect data, and then return to the inside of the shell hammer head 1 to prevent damage to other equipment during operation; the optical fiber temperature sensor measures a temperature range of 600°C to 1100°C, and can transmit the measured data to the control system 4 according to different temperature gradients. The control system 4 analyzes and converts different temperature gradients into different heights, so that the height of the aluminum liquid and the electrolyte can be measured. Since there is a 1 cm transition area in the reaction zone and the temperature gradient is not obvious enough, an error of 1 cm is allowed during the measurement process, but the total height remains unchanged.

[0050] In this embodiment, the control system 4 is a controller connected to the control keys for controlling the extension and retraction of the first cylinder 21 and the second cylinder 22; the PC-side display storage device 3 is a PC with a display; and the transmission device 5 is a connecting line.

[0051] Example 2

[0052] like Figure 2 and Figure 3 As shown, this embodiment is obtained by increasing the number of technical features such as the control system 4 on the basis of the embodiment one. The remaining technical features are the same as those of the embodiment one, and the similarities are not repeated here. Among them, the difference between this embodiment and the embodiment one is that: one of the PC-side display storage devices 3 is connected to one of the control systems 4 or at least two of the control systems 4.

[0053] In this embodiment, the overall structure of the present application can be installed on each electrolytic cell to display the process parameters of each cell. It can also be installed in a regional installation, with one installed in each working unit in the area, and then displayed through a PC-side display storage device 3. The corresponding electrolytic cell can be searched on the PC-side display storage device 3 at any time to display its process parameters. It is easy to operate and facilitates centralized management.

[0054] The two-level measurement process using the above-disclosed system is another technical solution disclosed in this application: a method for measuring two levels of electrolytic aluminum, the steps of which are:

[0055] S1. At the same time every day, the control system 4 sequentially generates action signals for controlling the first cylinder 21 and the second cylinder 22;

[0056] S2, the first cylinder 21 pushes the shell hammer head 1 to move downward and open a gap of about 10-15 cm on the inner shell surface of the electrolytic cell and then returns;

[0057] S3. The second cylinder 22 pushes the test device downward and inserts the test device into the electrolyte and aluminum liquid in the electrolytic cell. The test device is left to stand for 8-15 seconds to obtain the temperatures of the electrolyte and aluminum liquid, and the corresponding height is obtained according to the different temperatures.

[0058] S4, the test device sends the acquired data to the control system 4 through the transmission device 5;

[0059] S5. The control system 4 processes the data obtained by the test device and forms a line chart of the test data within a week, and transmits the line chart and the data obtained by the test device to the PC display storage device 3 for storage and display through the transmission device 5.

[0060] Among them, the action signal for controlling the action of the first cylinder 21 and the second cylinder 22 is automatically generated by the control system 4 or generated by a control key connected to the control system 4; when the control system 4 automatically generates the action signal, the application is in an automatic measurement state, and when the control system 4 manually generates the action signal, the application is in a manual measurement state. At the same time, the manual measurement state can be performed at any time.

[0061] Among them, when the shelling hammer head 1 moves downward, if the inner shell surface of the electrolytic cell is not hardened, the shelling hammer head 1 can return when it contacts the electrolyte liquid surface. If the inner shell surface of the electrolytic cell is hardened, the shelling hammer head 1 will increase the pressure until the inner shell surface of the electrolytic cell is opened before returning.

[0062] Among them, when the first cylinder 21 returns: when the piston rises to the upper point position, it will be attracted by the magnet in the rear end cover of the first cylinder 21. The suction force of the magnet overcomes its own weight to prevent the piston from moving downward under the action of the gravity of the shell hammer head 1. When gas pressure is passed through the piston, the magnetic force is overcome and the piston moves downward under the action of the gas pressure.

[0063] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims, not the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be included within the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0064] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A system for measuring two levels of electrolytic aluminum, characterized by: include: A test device that detects the temperature of the electrolyte and aluminum liquid in the electrolytic cell and obtains the corresponding detection height according to different temperatures; The cylinder telescopic device drives the shell hammer head to move up and down to open the inner shell surface of the electrolytic cell, and penetrates the test device into the electrolyte and aluminum liquid in the electrolytic cell; a transmission device for transmitting data detected by the test device to a control system and a PC-side display storage device; A control system for controlling the movement of the cylinder extension device, processing the data measured by the test device, and forming a broken line statistical graph of the test data within one week; A PC display storage device that displays the data detected by the test device and the broken line statistical graph.

2. The system for measuring two levels of electrolytic aluminum according to claim 1, characterized in that: The cylinder telescopic device includes a first cylinder and a second cylinder. The first cylinder is connected to the testing device and drives it to move up and down. The second cylinder is connected to the shell hammer head and drives it to move up and down. A magnet is provided in the rear end cover of the second cylinder to adsorb the piston rod when the piston rises to the upper point position.

3. The system for measuring two levels of electrolytic aluminum according to claim 2, characterized in that: A vertical through hole for the testing device to extend into is provided at the center of the shell-breaking hammer head, and the testing device can move up and down in the vertical through hole under the action of the first cylinder.

4. The system for measuring two levels of electrolytic aluminum according to claim 3, characterized in that: The testing device is an optical fiber temperature sensor, and is arranged in a high-temperature superconducting protective shell made of high-temperature resistant ceramics.

5. The system for measuring two levels of electrolytic aluminum according to claim 4, characterized in that: The control system is a controller, which is connected to the control keys for controlling the extension and retraction of the first cylinder and the second cylinder; the PC-side display storage device is a PC with a display; and the transmission device is a connecting line.

6. The system for measuring two levels of electrolytic aluminum according to claim 5, characterized in that: One of the PC-side display storage devices is connected to one of the control systems or at least two of the control systems.

7. A method for measuring two levels of electrolytic aluminum, characterized by: A system for measuring two levels of electrolytic aluminum according to any one of claims 1 to 6 is used, wherein the steps are: At the same time every day, the control system sequentially generates an action signal for controlling the action of the first cylinder and the action of the second cylinder; The first cylinder pushes the shell hammer head downward and opens a gap of 10-15 cm on the inner shell surface of the electrolytic cell before returning; The second cylinder pushes the test device downward and inserts it into the electrolyte and aluminum liquid in the electrolytic cell. It is left to stand for 8-15 seconds to obtain the temperature of the electrolyte and aluminum liquid, and the corresponding height is obtained according to the different temperatures. The test device sends the acquired data to the control system through the transmission device; The control system processes the data obtained by the test device, and forms a broken line statistical graph of the test data within a week, and transmits the statistical graph and the data obtained by the test device to the PC display storage device for storage and display through the transmission device.

8. The method for measuring two levels of electrolytic aluminum according to claim 7, characterized in that: The action signals for controlling the action of the first cylinder and the action of the second cylinder are automatically generated by the control system or generated through a control key connected to the control system.

9. The method for measuring two levels of electrolytic aluminum according to claim 8, characterized in that: When the shelling hammer head moves downward, if the inner shell surface of the electrolytic cell is not hardened, the shelling hammer head can return when it contacts the electrolyte liquid surface. If the inner shell surface of the electrolytic cell is hardened, the shelling hammer head will not return until the inner shell surface of the electrolytic cell is opened.

10. The method for measuring two levels of electrolytic aluminum according to claim 8, characterized in that: When the first cylinder returns, when the piston rises to the uppermost position, it will be attracted by the magnet in the rear end cover of the first cylinder. The suction force of the magnet overcomes its own weight to prevent the piston from moving downward under the action of the gravity of the shell hammer head. When gas pressure is passed through the piston, the magnetic force is overcome and the piston moves downward under the action of the gas pressure.

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