CN208833234U - Molten aluminum and electrolyte level measuring device in Aluminum Electrolysis Production based on machine vision - Google Patents
Molten aluminum and electrolyte level measuring device in Aluminum Electrolysis Production based on machine vision Download PDFInfo
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- CN208833234U CN208833234U CN201821658075.9U CN201821658075U CN208833234U CN 208833234 U CN208833234 U CN 208833234U CN 201821658075 U CN201821658075 U CN 201821658075U CN 208833234 U CN208833234 U CN 208833234U
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Abstract
The utility model discloses molten aluminum in a kind of Aluminum Electrolysis Production based on machine vision and electrolyte level measuring devices, including AGV routing inspection trolley system, it is equipped with measurement pricker system on the routing inspection trolley system top AGV, is equipped with Machine Vision Inspecting System in the routing inspection trolley system lower part AGV；Measurement pricker system above-mentioned includes the measurement pricker being obliquely installed, and the bottom for measuring pricker is located in electrolyte, and the top for measuring pricker is located in AGV routing inspection trolley system；It is identification target and dimension reference target that Machine Vision Inspecting System above-mentioned, which uses monocular focusing video camera with the measurement pricker being located in fixed depth of field plane,.The equipment can automatic erect-position, automatically identify aluminium hole, measurement pricker probes into automatically, and machine vision metrology and data generate, transmission.The equipment can reduce labor intensity of workers, raise labour productivity, and be conducive to the real-time Transmission and data analysis and utilization of data, for realizing that the intelligence of Aluminium Industry, automation are of great significance.
Description
Technical field
The utility model relates to the detections of molten aluminum during Aluminum Electrolysis Production and electrolyte level and image procossing, vision to survey
Amount, vision system is calibrated, image preprocessing, image recognition, automatic measurement molten aluminum and electrolyte by way of image ranging
It is horizontal.Belong to Aluminum Electrolysis Production industry technology field.
Background technique
During Aluminum Electrolysis Production, the gentle electrolyte level of aluminum water is two important parameters of electrolytic cell production management.Electricity
The main function of solution matter is that conductive, dissolution aluminium oxide and separation anode reaction and cathode reaction, the height of electrolyte level are straight
The solvability being related to aluminium oxide is connect, the uniformity of the mass transfer and alumina dissolution inside electrolyte is also influenced, and
The height of electrolyte level also influences the consumption of the thermal stability and anode of electrolytic cell.The flat main function of aluminum water is to promote yin
Pole reaction occurs, stores heat, conductive and heat-conductive.So the flat selection of aluminum water has great influence to electrolytic cell thermal balance, such as mention
High aluminum level can reduce the flow velocity of molten aluminum and electrolyte, reduce the solution loss of aluminium, increases furnace bottom heat dissipation, is beneficial to tissue
Low overheat production, improves current efficiency；But aluminum water is put down excessively high, can be reduced the solvability of aluminium oxide, be caused largely to aoxidize
Aluminum precipitation is to furnace bottom.So how really, effectively obtain electrolyte level and the flat data of aluminum water are electrolytic cell intelligence pipes
The premise of reason.
In current electrolysis aluminium production process, manual measurement is mainly used, for most of electrolysis aluminum production enterprises, at present
There are mainly two types of measuring tools.No matter which kind of measuring tool, require to be manually placed into take out measurement pricker, and hold level meter into
Row is horizontal positioned, and artificial to carry out steel ruler matching measurement, the operation such as artificial notes, severe operational environment, labor intensity is larger, test
Process at least needs two bit test personnel, and the error tested is larger, and the key entry of data is easy error, influences to a certain extent
To the accuracy of test.
Utility model content
The main purpose of the utility model is to provide molten aluminum and electrolysis in a kind of Aluminum Electrolysis Production based on machine vision
The equipment is loaded on AGV trolley by matter level measurement device, can automatic erect-position, automatically identify aluminium hole, measurement pricker is automatic
It probes into and withdraws, machine vision metrology and data storage, transmission.The equipment can reduce labor intensity of workers, improve labour life
Yield is conducive to the real-time Transmission and data analysis and utilization of data, for realizing that the intelligence of Aluminium Industry, automation have
Significance.
In order to solve the above technical problems, the utility model is achieved through the following technical solutions:
Firstly, the utility model proposes molten aluminums in a kind of Aluminum Electrolysis Production based on machine vision and electrolyte level to survey
Device, including AGV routing inspection trolley system are measured, measurement pricker system is equipped on the routing inspection trolley system top AGV, in AGV routing inspection trolley
System lower part is equipped with Machine Vision Inspecting System；Measurement pricker system above-mentioned includes the measurement pricker being obliquely installed, and measures pricker
Bottom be located in electrolyte, the top for measuring pricker is located in AGV routing inspection trolley system；Machine Vision Inspecting System above-mentioned is adopted
With monocular focusing video camera to be identification target and dimension reference target positioned at the measurement pricker fixed in depth of field plane.
Further, AGV routing inspection trolley system above-mentioned carries out route guidance by two dimensional code and slot number identifies.AGV is patrolled
Inspection cart system is by marking visual-alignment that drill rod is directed at fire hole automatically.
Further, measurement pricker is driven by stepper motor, and motion guide rail is arranged.Measure the material selection casting of pricker
Iron.It measures pricker guide rail end and holder is set.It measures pricker and two sections of telescopic joints is set.
Further, image is switched to HSV color space, binaryzation, Gauss from RGB by Machine Vision Inspecting System above-mentioned
Background interference is eliminated in filtering, is detected by sub-pixel edge and is obtained line of demarcation, primarily determines immersion segment length；Pass through measurement pricker again
Image measurement length and known length calculate error rate, are then modified to immersion length, obtain accurately measuring pricker immersion portion
Divide length；The final inclination angle in conjunction with measurement pricker is converted into vertical height.
The device of the utility model is made of AGV carrier, measurement pricker system and vision system etc. part, by measurement pricker installation
On AGV trolley, measurement pricker is accurately identified with the good monocular focusing machine visual system of calibration and is surveyed according to picture material
Insertion depth is measured, and then realizes the automatic measurement of molten aluminum and electrolyte level, and be in time transmitted to test data by WIFI
MES system is conducive to mitigate labor intensity of workers, improves production efficiency, and measurement system error is smaller, and accuracy is higher, weight
Renaturation is preferable with reproducibility, for realizing that the intelligence of Aluminium Industry, automation are of great significance.
Detailed description of the invention
Fig. 1 is the apparatus structure schematic diagram of the utility model；
Fig. 2 is the Machine Vision Recognition flow chart of the utility model.
Specific embodiment
Below in conjunction with attached drawing and preferred embodiment, to according to the utility model proposes a kind of electrolysis based on machine vision
The specific embodiment of molten aluminum and electrolyte level measuring device, structure, feature and its effect are described in detail in aluminium production.
The attached drawing being directed to only illustrates certain case study on implementation of the utility model, and should not be looked at is restriction to range, for
It, can also be with reference to the accompanying drawings in the case where combining the actual conditions of specific case and self-technique level for professional and technical personnel
Obtain other relevant information.
As shown in Figure 1, molten aluminum, the equipment of electrolyte level include following several in the automatic measurement electrolytic cell of the utility model
A system: AGV routing inspection trolley system 1；Measure pricker system 2 and its control system；Machine Vision Inspecting System 3；Correspondingly, also wrapping
The wireless transmitting system under magnetic field environment is included, using the wireless transmitting system used in existing electrolytic aluminium.Such as Fig. 1 institute
Show.Wherein, the AGV routing inspection trolley of AGV routing inspection trolley system 1 carries out inspection measurement according to electrolytic cell inspection route, recognizes electricity
Solve slot identity information after can automatic erect-position, fire hole is captured by image identification system automatically, is accurately positioned.
The measurement pricker of pricker system 2 is measured under the driving of driving stepper motor, is deep into electrolyte and molten aluminum, driver
A certain amount of pulse is provided, motor rotates one week, guide rail stroke 5mm, according to the pulse frequency that PLC is generated, the maximum speed of setting stroke
Degree.Then driving motor offer voltage is bigger, then motor torque is bigger.Measurement pricker stays for some time in electrolyte and molten aluminum
Afterwards, measurement pricker is withdrawn by stepper motor drives edge guide rail.
It measures pricker withdrawing on the way, the industrial camera set of getting the bid by Machine Vision Inspecting System 3 carries out image and adopts
Dark gray is presented in collection, the measurement pricker being immersed in molten aluminum, and shiny red is presented in measurement pricker in the electrolyte for submergence, is projected by camera lens
Onto the element board of many CCD composition array.Computer is converted by A/D in this way, is read the data of CCD, is obtained complete shadow
Picture.When computer obtains image from the end CCD, image contour is obtained through binary conversion treatment.Image wheel can be obtained by edge detection
Wide location of pixels is poor, in conjunction with the calibration that every pixel correspondingly-sized carries out, calculates conversion system through feature extraction and pattern match
Number, to realize molten aluminum, the precise measurement of electrolyte level according to the color distinction being immersed in electrolyte and molten aluminum.Machine
Visual identity flow chart is as shown in Figure 2.
When it is implemented, including the following steps: that 1. telescopic control system recycles upwards by pricker is measured.2. when complete withdraw is surveyed
After measuring pricker, suspend 2-10 seconds.At this point, dark gray will be presented in the measurement pricker being immersed in molten aluminum originally, it is immersed in electrolyte originally
Shiny red will be presented in middle measurement pricker.3. carrying out Image Acquisition by the machine vision measuring system for being located at top.4. computer is to figure
As carrying out binary conversion treatment, removing background and obtaining clearly measurement pricker profile and line of demarcation.5. computer carries out edge detection,
Detect the boundary line coordinates of measurement bright, the dark coating in pricker surface.6. counting the picture of dark (molten aluminum) section, bright (electrolyte) section respectively
Prime number amount.7. being demarcated by the physical length of known measurement pricker, it is long that pixel number is converted into molten aluminum section, the physics of electrolyte section
Degree.8. two sections of physical lengths are corrected to vertical height, realize molten aluminum, electrolyte water by the last tilt angle for combining measurement pricker
Flat measurement.
It is to be noted that measurement pricker will measure the electrolyte and aluminium that are bonded on pricker during withdrawal, through holder
It is struck off, to meet the requirement of leave from office slot test.The measurement data obtained by analog-to-digital conversion is transferred in time by WIFI
MES system.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation, it is any without departing from the content of the technical scheme of the utility model, according to the technical essence of the utility model to above embodiments
Made any simple modification, equivalent change and modification, are still within the scope of the technical solutions of the present invention.
Claims (5)
1. molten aluminum and electrolyte level measuring device in a kind of Aluminum Electrolysis Production based on machine vision, it is characterised in that: including
AGV routing inspection trolley system (1) is equipped with measurement pricker system (2) on AGV routing inspection trolley system (1) top, in AGV routing inspection trolley system
(1) lower part unite equipped with Machine Vision Inspecting System (3)；Measurement pricker system (2) includes the measurement pricker being obliquely installed, and is surveyed
The bottom of amount pricker is located in electrolyte, and the top for measuring pricker is located in AGV routing inspection trolley system (1)；The Machine Vision Detection
It is identification target and dimension reference mesh that system (3), which uses monocular focusing video camera with the measurement pricker being located in fixed depth of field plane,
Mark.
2. molten aluminum and electrolyte level measuring device in the Aluminum Electrolysis Production according to claim 1 based on machine vision,
It is characterized by: the measurement pricker is driven by stepper motor, and motion guide rail is set.
3. molten aluminum and electrolyte level measuring device in the Aluminum Electrolysis Production according to claim 2 based on machine vision,
It is characterized by: the material selection cast iron of the measurement pricker.
4. molten aluminum and electrolyte level measuring device in the Aluminum Electrolysis Production according to claim 2 based on machine vision,
It is characterized by: holder is arranged in the measurement pricker guide rail end.
5. molten aluminum and electrolyte level measuring device in the Aluminum Electrolysis Production according to claim 2 based on machine vision,
It is characterized by: two sections of telescopic joints are arranged in the measurement pricker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821658075.9U CN208833234U (en) | 2018-10-12 | 2018-10-12 | Molten aluminum and electrolyte level measuring device in Aluminum Electrolysis Production based on machine vision |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821658075.9U CN208833234U (en) | 2018-10-12 | 2018-10-12 | Molten aluminum and electrolyte level measuring device in Aluminum Electrolysis Production based on machine vision |
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| CN208833234U true CN208833234U (en) | 2019-05-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211201A (en) * | 2018-10-12 | 2019-01-15 | 贵阳铝镁设计研究院有限公司 | Molten aluminum and electrolyte level measuring system in Aluminum Electrolysis Production based on machine vision |
| CN116576979A (en) * | 2023-03-24 | 2023-08-11 | 中南大学 | Device and method for measuring aluminum electrolyte and electrolyte level of aluminum electrolysis |
-
2018
- 2018-10-12 CN CN201821658075.9U patent/CN208833234U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211201A (en) * | 2018-10-12 | 2019-01-15 | 贵阳铝镁设计研究院有限公司 | Molten aluminum and electrolyte level measuring system in Aluminum Electrolysis Production based on machine vision |
| CN109211201B (en) * | 2018-10-12 | 2024-05-14 | 贵阳铝镁设计研究院有限公司 | Aluminum liquid and electrolyte level measurement system in electrolytic aluminum production based on machine vision |
| CN116576979A (en) * | 2023-03-24 | 2023-08-11 | 中南大学 | Device and method for measuring aluminum electrolyte and electrolyte level of aluminum electrolysis |
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