CN211012950U

CN211012950U - Aluminum cell electrolyte level and aluminum level measuring system

Info

Publication number: CN211012950U
Application number: CN201921902085.7U
Authority: CN
Inventors: 敖宇; 黄若愚; 王明刚
Original assignee: China Aluminum International Engineering Corp ltd
Current assignee: China Aluminum International Engineering Corp ltd; Guiyang Aluminum Magnesium Design and Research Institute Co Ltd
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-07-14
Anticipated expiration: 2029-11-06

Abstract

The utility model discloses an electrolyte level and aluminum level measuring system of an aluminum electrolytic cell, which consists of a measuring device, a field controller, a field display terminal, a field route, a mobile terminal and a power line; the measuring device comprises a measuring device bracket, a vertical slide rail, two horizontal probes, a wireless camera measuring device, a crust breaking head, a probe slide rail action actuator and a crust breaking head slide rail action actuator; the wireless camera measuring device, the field controller, the field route, the probe slide rail action executor, the crust breaking head slide rail action executor and the mobile terminal are communicated in a wireless mode. The utility model discloses can reduce measuring time, practiced thrift the human cost, realize two horizontally automatic measure to electrolyte level, aluminium level simultaneous measurement in the electrolysis trough. In addition, when the system is used for measuring two levels, the system has the advantage of remote measurement, namely, workers do not need to enter the site for measurement.

Description

Aluminum cell electrolyte level and aluminum level measuring system

Technical Field

The utility model belongs to the technical field of aluminium electrolysis process information detection, especially, relate to an aluminium cell electrolyte level and aluminium level measurement system.

Background

The electrolyte level and the aluminum level of the electrolytic cell are important indexes for judging the condition of the electrolytic cell. The stable electrolyte level and aluminum level are the basis for the stability of the cell. Therefore, monitoring the electrolyte level and the aluminum level in the aluminum electrolysis cell is one of the essential processes for aluminum electrolysis production, and the accuracy of the monitoring result is crucial to the process control of the aluminum electrolysis cell.

In the prior art, the electrolyte and aluminum levels in the aluminum electrolysis process are measured by inserting an iron rod into aluminum liquid by workers, then taking out the iron rod and observing the color change in the cooling process, and obtaining the measured values of the electrolyte level and the aluminum level from the lengths of different colors on the cooled iron rod.

In chinese patent literature, the following prior art disclosures may be related to the technical solution of the present invention:

the utility model with application number 201410032243.3, applied by yunan yun xin aluminum industry limited company on 2014, 01, 23, discloses a measuring tool and a measuring method for aluminum level and electrolyte level of an aluminum cell. The method comprises the following steps: the probe rod is vertically inserted into the aluminum electrolytic cell, and the lower end of the probe rod is spaced from the cathode carbon block at the bottom of the aluminum electrolytic cell by a first preset distance. The lower end of the probe rod is separated from the cathode carbon block at the bottom of the aluminum electrolysis cell by a first preset distance, so that the probe rod is not contacted with the cathode carbon block, the measured aluminum level and electrolyte level are prevented from being influenced by the surface condition of the cathode carbon block, the accuracy and the contrast of the measured aluminum level and electrolyte level are improved, and the normal and stable operation of the aluminum electrolysis cell is further ensured.

The utility model discloses a 201610792886.7 application number 201610792886.7 applied by Guiyang Almag research institute Limited in 2016, 08, 31. the method comprises making a L type measuring drill rod consisting of a vertical iron rod and a horizontal iron rod, placing the horizontal iron rod of a L type measuring drill rod on the horizontal support, vertically inserting the vertical iron rod of a L type measuring drill rod into electrolyte or aluminum liquid in the aluminum electrolytic cell, marking electrolyte or aluminum liquid on the vertical iron rod of the L type measuring drill rod, taking off the L type measuring drill rod from the horizontal support and placing the measuring drill rod on a measuring trolley, making the vertical iron rod of the L type measuring drill rod abut against the vertical support rod of the measuring trolley, which is perpendicular to the horizontal support and is provided with a graduated scale, so that the corresponding value of the marking on the vertical iron rod can be directly read from the graduated scale of the vertical support rod, the value is the measuring value, the measuring scheme has the advantages of high measuring precision, low measuring efficiency, simple operation structure, and the like.

In addition, a utility model with application number 201811191233.9, which is applied by Guiyang aluminum magnesium design research institute, Inc. on 2018, 10, month and 12, discloses a machine vision-based aluminum liquid and electrolyte level measuring system in electrolytic aluminum production, which comprises an AGV inspection trolley system, wherein a measuring drill rod system is arranged at the upper part of the AGV inspection trolley system, and a machine vision detecting system is arranged at the lower part of the AGV inspection trolley system; the measuring drill rod system comprises an obliquely arranged measuring drill rod, the bottom of the measuring drill rod is positioned in electrolyte, and the top of the measuring drill rod is positioned on the AGV inspection trolley system; the machine vision detection system adopts a monocular fixed-focus camera to take a measuring drill rod positioned in a fixed depth-of-field plane as an identification target and a size reference target. The device can automatically stand and identify the aluminum hole, the measuring drill rod automatically probes in, and the machine vision measurement and data generation and transmission are carried out. The equipment can reduce the labor intensity of workers, improve the labor productivity and is beneficial to real-time transmission and data analysis and utilization of data.

However, the above prior art has not considered the following problems: the melt temperature and aluminum level are typically measured once a day due to high temperature corrosivity. Meanwhile, the measurement accuracy of the measurement method is greatly related to the operation and experience of field workers. In addition, at least two operators are required to measure the two levels (electrolyte level and aluminum level) using the prior art. Therefore, the existing measuring method for the electrolyte level or the aluminum level of the aluminum electrolysis cell has the problems of low measuring precision, low measuring efficiency and large labor amount.

Therefore, it is necessary to further improve the two-level measurement method of aluminum electrolysis cell to realize automatic measurement, thereby further improving the control level of aluminum electrolysis production.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem who solves: the utility model provides an electrolytic bath electrolyte level and aluminium level measurement system to solve the problem that prior art exists that measurement accuracy is low, labour cost is high and measurement of efficiency is low etc.

The utility model adopts the following technical scheme:

a system for measuring electrolyte level and aluminum level of an aluminum electrolysis cell comprises a measuring device, a control module, a field display, a field route, a mobile terminal and a power line; the measuring device comprises a measuring device bracket, a vertical slide rail, two horizontal probes, a wireless camera measuring device, a crust breaking head, a probe slide rail action actuator and a crust breaking head slide rail action actuator; the wireless camera measuring device, the control module, the field route, the probe slide rail action executor, the crust breaking head slide rail action executor and the mobile terminal are communicated in a wireless mode.

The two horizontal probes are glass fiber probes and are connected with the vertical slide rail in a 7 shape. The probe has the characteristics of insulation, high temperature resistance, magnetism resistance, corrosion resistance and the like. The probe is not limited to a glass fiber probe, and materials with the same characteristics can be selected as the two-level probe.

The crust breaking head is made of metal tungsten, the crust breaking head and the crust breaking rod are of a hollow structure in the vertical direction, and the glass fiber probe extends into the electrolytic bath from the hollow structure to perform two-level detection.

The control module, the wireless module, the power supply module and the field display are all arranged in a field control cabinet; the power supply module supplies power to the control module, the wireless module, the field display, the probe slide rail action executor and the crust breaking head slide rail action executor.

The wireless module and the field route adopt a bridging mode, so that the control module, the probe slide rail action actuator, the crust breaking head slide rail action actuator and the mobile terminal are in the same local area network; the display module is used for displaying the measured two-level data.

Because the mobile terminal and the field device(Wireless camera measuring device, control module, on-site routing, probe slide rail motion Action actuator of crust breaking head slide railIn the same lan, the mobile terminal device has the same function as the field control device, and thus acts as a remote controller. The user can use the mobile terminal device to realize the two-level measurement, and can also find the two-level measurement result.

The wireless camera measuring device consists of a communication module, a control module and a data processing unit; the communication module is used for transmitting a control signal and a measured data signal; the control module is used for controlling the image sensor to finish the acquisition of the pattern or trace information of the glass fiber probe; the data processing unit calculates the electrolyte level and the aluminum level according to the actual length occupied by one pixel point and by combining the electrolyte and aluminum liquid pattern or trace information left on the glass fiber probe or the total number of the pixel points, and sends the electrolyte level and the aluminum level to the field display terminal and the background database through the communication module; the whole control and acquisition process adopts a wireless communication mode.

Placing a control module, a display module and the like in a field control cabinet, and suspending the field control cabinet at an aluminum outlet port of an electrolytic cell; meanwhile, a measuring button and a returning button are arranged on the control cabinet; the on-site measurement is convenient for the user.

By adopting the system, the utility model discloses an aluminium cell electrolyte level and aluminium level measurement method adopts image sensor to gather the vestige that electrolyte and aluminium liquid left over on the probe, and then through calculating the pixel point number that the vestige occupied to two level results have been obtained.

Specifically, the method comprises the following steps: connecting the field route with a factory Ethernet, and constructing equipment comprising a measuring device, a control module and a mobile terminal in the same local area network segment; a user sends a control command to the probe slide rail action actuator or the crust breaking head slide rail action actuator through the control module or the APP of the mobile terminal, so that the crust breaking device and the probe detection device are pushed to work; after the detection rod extends into the bottom, the vertical slide rail is operated to leave the electrolytic bath; and the control module sends a control command to the wireless camera measuring device, and the wireless camera measuring device acquires pattern (trace) information on the glass fiber probe. So as to calculate the electrolyte level and the aluminum level according to the pattern or trace left on the probe by the aluminum liquid and the electrolyte.

The utility model has the advantages that: the utility model discloses can reduce measuring time, practiced thrift the human cost, realize two horizontally automatic measure to electrolyte level, aluminium level simultaneous measurement in the electrolysis trough. In addition, when the system is used for measuring two levels, the system has the advantage of remote measurement, namely, workers do not need to enter the site for measurement.

Drawings

Fig. 1 is a schematic view of the overall framework of the present invention.

Fig. 2 is a structure diagram of the measuring device of the present invention.

Fig. 3 is a flow chart of the measurement system program execution of the present invention.

The labels in the figures are: 1-a measuring device holder; 2-vertical sliding rail; 3-two horizontal probes; 4-two horizontal probe detection ports; 5-a wireless camera measuring device; 6-crust breaking head; 7-a probe slide rail action actuator; 8-crust breaking head slide rail action executor; 9-a field control cabinet; 10-field display; 11-a power line; 12-a control module; 13-a mobile terminal; 14-factory ethernet port; 15-field routing; h 1-probe action range; h 2-crust breaking device action range.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

The embodiment of the utility model provides a:

referring to fig. 1, when the probe slide rail actuator 7 controls the two horizontal probes 3 to slide to the bottom end of the vertical slide rail 2 at the height h1, the two horizontal probes 3 are just at the bottom of the electrolytic cell. When the crust breaking head slide rail action executor 8 controls the crust breaking head 6 to slide to the bottom end of the height h2 of the vertical slide rail 2, the crust breaking head 6 just contacts with the aluminum liquid.

The measurement process is as follows: the first step is as follows: the whole measuring device is arranged on the top of the electrolytic cell and fixed by bolts; the second step is that: connecting a field route 15 with a factory Ethernet port 14, and constructing a measuring device, a control module, a mobile terminal 13 and other equipment in the same local area network segment; the third step: sending a detection control command to the crust breaking head sliding rail action actuator 8 by using a control module in the field control cabinet 9 or using APP of the mobile terminal 13 to open crust for the two horizontal probes 3, so that the two horizontal probes 3 can conveniently extend into the bottom of the tank to carry out two-level measurement; the fourth step: sending a control command to the probe slide rail action actuator 7 to control the two horizontal probes 3 to carry out two-level detection; the fifth step: sending a control command to the wireless camera measurement device 5 by using a control module in the field control cabinet 9 or using an APP of the mobile terminal 13, so that the wireless camera measurement device captures pattern (trace) information left on the glass fiber probe after the two horizontal probes 3 extend into the bottom; and a sixth step: the electrolyte level and the aluminum level are calculated according to the pattern (trace) left by the aluminum liquid and the electrolyte on the two horizontal probes 3. In the third to sixth steps, the user only needs to execute the third step, and then the fourth to sixth steps are automatically executed by the program.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. An aluminum cell electrolyte level and aluminum level measuring system is characterized in that: the system consists of a measuring device, a field control cabinet (9), a field display (10), a field route (15), a mobile terminal (13) and a power line (11); the measuring device comprises a measuring device bracket (1), a vertical slide rail (2), two horizontal probes (3), a wireless camera measuring device (5), a crust breaking head (6), a probe slide rail action actuator (7) and a crust breaking head slide rail action actuator (8); the wireless camera measurement device (5), the field control cabinet (9), the field router (15), the probe slide rail action executor (7), the crust breaking head slide rail action executor (8) and the mobile terminal (13) are in wireless communication.

2. The aluminum electrolysis cell electrolyte level and aluminum level measurement system of claim 1, wherein: the two horizontal probes (3) are glass fiber probes and are connected with the vertical slide rail (2) in a 7 shape.

3. The aluminum electrolysis cell electrolyte level and aluminum level measurement system of claim 2, wherein: the crust breaking head (6) is made of metal tungsten, the crust breaking head (6) and the crust breaking rod are of a hollow structure in the vertical direction, and the glass fiber probe extends into the electrolytic bath from the hollow structure to perform two horizontal detections.

4. The aluminum electrolysis cell electrolyte level and aluminum level measurement system of claim 1, wherein: the field control cabinet (9) consists of a control module, a wireless module, a power supply module and a field display (10); the power supply module supplies power to the control module, the wireless module, the field display (10), the probe slide rail action actuator (7) and the crust breaking head slide rail action actuator (8).

5. The aluminum electrolysis cell electrolyte level and aluminum level measurement system of claim 4, wherein: the wireless module and the field route (15) adopt a bridging mode, so that the control module, the probe slide rail action actuator (7), the crust breaking head slide rail action actuator (8) and the mobile terminal (13) are in the same local area network; the field display (10) is used for displaying the measured two-level data.

6. The aluminum electrolysis cell electrolyte level and aluminum level measurement system of claim 4, wherein: the wireless camera measuring device (5) consists of a communication module, a control module (12) and a data processing unit; the communication module is used for transmitting a control signal and a measured data signal; the control module (12) is used for controlling the image sensor to finish the acquisition of pattern or trace information of the glass fiber probe; the data processing unit calculates the electrolyte level and the aluminum level according to the actual length occupied by one pixel point and by combining electrolyte and aluminum liquid pattern or trace information left on the glass fiber probe or the total number of the pixel points, and sends the electrolyte level and the aluminum level to the field display (10) and the background database through the communication module, and the whole control and acquisition process adopts a wireless communication mode.

7. The aluminum electrolysis cell electrolyte level and aluminum level measurement system of claim 4, wherein: placing a control module (12) and a field display (10) in a field control cabinet (9), and suspending the field control cabinet (9) at an aluminum outlet port of an electrolytic cell; meanwhile, a measuring button and a returning button are arranged on the control cabinet; the on-site measurement is convenient for the user.