CN111337102A - Height measuring device for high-temperature electrolyte solution - Google Patents
Height measuring device for high-temperature electrolyte solution Download PDFInfo
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- CN111337102A CN111337102A CN202010324642.2A CN202010324642A CN111337102A CN 111337102 A CN111337102 A CN 111337102A CN 202010324642 A CN202010324642 A CN 202010324642A CN 111337102 A CN111337102 A CN 111337102A
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- connecting piece
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- electrolyte solution
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- measuring device
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- 239000008151 electrolyte solution Substances 0.000 title claims abstract description 21
- 238000006073 displacement reaction Methods 0.000 claims abstract description 29
- 230000005484 gravity Effects 0.000 claims abstract description 25
- 238000009434 installation Methods 0.000 claims abstract description 8
- 239000003792 electrolyte Substances 0.000 claims description 27
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims 2
- 238000005259 measurement Methods 0.000 abstract description 16
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 3
- 230000000007 visual effect Effects 0.000 abstract description 3
- 238000012800 visualization Methods 0.000 abstract description 2
- 229910052782 aluminium Inorganic materials 0.000 description 24
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 24
- 239000007788 liquid Substances 0.000 description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- 238000007689 inspection Methods 0.000 description 4
- 206010039509 Scab Diseases 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/20—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of weight, e.g. to determine the level of stored liquefied gas
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
The invention discloses a height measuring device for high-temperature electrolyte solution, which comprises a lifting device, a PLC (programmable logic controller), a rack and a measuring piece, wherein the lifting device and the PLC are both arranged on the rack; and the lifting device, the displacement sensor and the gravity sensor are electrically connected with the PLC. The measuring device provided by the invention has the advantages that the structural design is ingenious, the installation is convenient and rapid, the automatic measurement is realized, compared with a mode of manually controlling the drill rod to be observed by naked eyes after being inserted, the accuracy of the measuring result is improved, the measured data can be stored and transmitted, the liquid crystal display is convenient and visual, and the visualization degree is high.
Description
Technical Field
The invention relates to the technical field of electrolyte measuring equipment in the aluminum liquid production process, in particular to a height measuring device for a high-temperature electrolyte solution.
Background
The electrolyte and the aluminum exist in a solid state in an ambient temperature environment, and the density of the electrolyte is greater than that of the aluminum. When the temperature of the production process is 960 ℃, the two media are in liquid states, the density of the two media are interchanged, two liquid level layers are formed, and the electrolyte is at the upper liquid level. During electrolytic production, measurements of electrolyte levels and aluminum levels are required. The level of the electrolyte reflects the amount of the electrolyte in the electrolytic cell, the amount of the electrolyte ensures the stability of the hot melting of the electrolytic cell and the capacity of dissolving alumina, and the efficiency of the current is influenced by overhigh or overlow electrolytic quality. The aluminum level is used for measuring the amount of aluminum in the electrolytic bath, and the aluminum water plays roles in dissipating heat, weakening a magnetic field, making the aluminum level calm and reducing horizontal current.
Therefore, it is important to measure these two levels during the manufacturing process. The measurement is based on the physical and chemical properties of the two media. The two media differ in that: 1) physical properties are density, resistivity, viscosity, etc.; 2) the chemical property is represented by the chemical structure, reaction and the like, and cannot be measured on line according to the two main characteristics. Because the instrument can not enter the device under the environment of high temperature and strong magnetic field, the indirect method is used for measurement. The existing measuring method adopts a method that an iron rod sinks into sintering crusts with different colors, the iron rod sinks into two media and is kept for a period of time to be taken out, the trace of the crusts left on the iron rod is obtained, the height of the crusts is manually measured by a steel plate ruler (or a camera is used for photographing), the method can only roughly measure the height, and the height of two levels cannot be accurately measured.
The invention discloses a Chinese invention patent with the patent number of 201811191233.9 and the publication date of 2019, 1 and 15, and discloses a machine vision-based molten aluminum and electrolyte level measuring system in electrolytic aluminum production, which comprises an AGV (automatic guided vehicle) 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. Although the equipment can reduce the labor intensity of workers and improve the labor productivity compared with the pure human work industry, the reaction boundary line of the two substances on the measuring drill rod is not clear enough, and the acquired data through the photos has larger errors.
Disclosure of Invention
The invention aims to provide a height measuring device for a high-temperature electrolyte solution, which solves the problems that manual operation measurement is time-consuming and labor-consuming, and the accuracy of a visual measurement mode is not easy to guarantee.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention relates to a height measuring device for high-temperature electrolyte solution, which comprises a lifting device, a PLC (programmable logic controller), a rack and a measuring piece, wherein the lifting device and the PLC are both arranged on the rack; and the lifting device, the displacement sensor and the gravity sensor are electrically connected with the PLC.
Preferably, guide assemblies are symmetrically arranged on two sides of the lifting device.
Preferably, the guide assembly comprises a guide rod and a guide sleeve which are matched, the guide sleeve is installed on the bottom installation plate of the lifting device, and the guide rod sequentially penetrates through the guide sleeve, the bottom installation plate of the lifting device and the top plate of the rack from top to bottom and then is connected with the horizontal connecting piece.
Preferably, the guide sleeve is mounted on the top surface of the bottom mounting plate of the lifting device and embedded into the mounting plate body or the top plate of the rack.
Preferably, the bottom of the guide bar is bolted to the top surface of the horizontal connecting member.
Preferably, the lifting device specifically adopts a linear electric cylinder or an oil cylinder, and a working rod of the linear electric cylinder or the oil cylinder penetrates through the top surface of the rack downwards and then is connected with the horizontal connecting piece.
Preferably, the horizontal connecting piece specifically adopts the preparation of metal square plate to form, vertical connecting piece adopts the bar-shaped structure, vertical connecting piece fixed connection be in horizontal connecting piece's bottom surface one side.
Preferably, the vertical connecting piece is welded or connected on the horizontal connecting piece through a bolt, a connecting hole is formed in the bottom of the vertical connecting piece, a connecting ring is welded or connected on the top surface of the measuring piece through a screw, and the connecting hole and the connecting ring are connected together in a hanging mode through a double-hook connecting piece.
Preferably, the displacement sensor is arranged on the bottom surface or the top surface of the horizontal connecting piece, and the linear electric cylinder or the oil cylinder is parallel; the gravity sensor is installed on the top surface of the horizontal connecting piece and is coincided with the center of the measuring piece in the vertical direction.
Preferably, the rack comprises a first rack body and a second rack body which are separated, a linear electric cylinder or an oil cylinder of the lifting device is arranged on the first rack body, the PLC is arranged on the second rack body, and universal wheels capable of being positioned and moved are arranged at the bottoms of the first rack body and the second rack body; and the first frame body is provided with a control switch.
Compared with the prior art, the invention has the beneficial technical effects that:
the invention relates to a height measuring device for high-temperature electrolyte solution, which comprises a lifting device, a PLC (programmable logic controller), a rack, a displacement sensor, a gravity sensor and a measuring piece, wherein the measuring piece is connected with a working rod of the lifting device through a horizontal connecting piece and a vertical connecting piece; and the lifting device, the displacement sensor and the gravity sensor are electrically connected with the PLC to realize data transmission and automatic measurement. According to the conductivity, temperature, density and other different characteristics of the electrolyte and the aluminum liquid, the invention obtains the accurate measurement of the levels of the aluminum liquid and the electrolyte by calculation through measuring the data of the measuring part in a free state and the data deep into the electrolyte.
The measuring device of the invention has smart structural design and convenient and fast installation, realizes automatic measurement, and improves the accuracy of the measuring result to 1 mm compared with the mode of manually controlling the drill rod to be inserted and then observing by naked eyes in the prior art; the measured data can be stored and transmitted, the controller is convenient and visual for liquid crystal display, and the visualization degree is high.
Drawings
The invention is further illustrated in the following description with reference to the drawings.
FIG. 1 is a schematic view of a height measuring device for a high-temperature electrolyte solution according to the present invention;
FIG. 2 is a front view of a height measuring device for a high-temperature electrolyte solution according to the present invention;
FIG. 3 is a left side view of the height measuring device for a high-temperature electrolyte solution according to the present invention;
description of reference numerals: 1. a lifting device; 2. a PLC controller; 3. a frame; 301. a first frame body; 302. A second frame body; 4. a horizontal connecting member; 5. a vertical connecting member; 6. a measuring member; 7. a displacement sensor; 8. A gravity sensor; 9. a guide bar; 10. a guide sleeve; 11. a control switch; 12. an electrolyte; 13. and (3) high-temperature aluminum liquid.
Detailed Description
As shown in fig. 1-3, a height measuring device for high-temperature electrolyte solution comprises a lifting device 1, a PLC controller 2, a frame 3 and a measuring part 6, wherein the lifting device 1 and the PLC controller 2 are both mounted on the frame 3, a bottom working rod of the lifting device 1 is connected to a horizontal connecting member 4, one end of the horizontal connecting member 4 is mounted with a displacement sensor 7, the other end is mounted with a gravity sensor 8, the measuring part 6 is connected to the bottom surface of the horizontal connecting member 4 through a vertical connecting member 5, and the working rod of the lifting device 1 is extended and retracted to drive the measuring part 6 to descend into the high-temperature electrolyte through the horizontal connecting member 4 and the vertical connecting member 5; and the lifting device 1, the displacement sensor 7 and the gravity sensor 8 are electrically connected with the PLC 2. The specific measuring piece 6 adopts a drill rod which can be a cylinder or a square, the rack 3 is provided with a control switch 11, the control switch 11 is electrically connected with the PLC 2 and a driving part in the lifting device 1, and the position of the control switch is convenient for a worker to control the driving part to be opened and closed.
Specifically, as shown in fig. 2, guide assemblies are symmetrically arranged on two sides of the lifting device 1. The guide assembly comprises a guide rod 9 and a guide sleeve 10 which are matched, the guide sleeve 10 is installed on the bottom installation plate of the lifting device 1, and the guide rod 9 sequentially penetrates through the guide sleeve 10, the bottom installation plate of the lifting device 1 and the top plate of the rack from top to bottom and then is connected with the horizontal connecting piece 4. The guide sleeve 10 is installed on the top surface of the bottom mounting plate of the lifting device 1, and is embedded into the mounting plate body or the top plate of the rack 3. The bottom of the guide bar 9 is bolted to the top surface of the horizontal connecting member 4.
Specifically, the lifting device 1 specifically adopts a linear electric cylinder or an oil cylinder, and a working rod of the linear electric cylinder or the oil cylinder penetrates through the top surface of the rack 3 downwards and then is connected with the horizontal connecting piece 4.
Specifically, as shown in fig. 2, the horizontal connecting member 4 is specifically made of a metal square plate, the vertical connecting member 5 is of a rod-shaped structure, and the vertical connecting member 5 is fixedly connected to one side of the bottom surface of the horizontal connecting member 4. The vertical connecting piece 5 is welded or connected on the horizontal connecting piece 4 through a bolt, a connecting hole is formed in the bottom of the vertical connecting piece 5, a connecting ring is welded or connected on the top surface of the measuring piece 6 through a screw, and the connecting hole is connected with the connecting ring through a double-hook connecting piece in a hanging mode.
Specifically, as shown in fig. 2 and 3, the displacement sensor 7 is installed on the bottom surface or the top surface of the horizontal connecting member 4, and the linear electric cylinder or the oil cylinder is parallel; the gravity sensor 8 is installed on the top surface of the horizontal connecting member 4 and coincides with the center of the measuring member 6 in the vertical direction. Specifically, the displacement sensor 7 adopts a guy wire displacement sensor WFS-1000 of Shanghai Haimai industry, and is used for measuring three displacement values, wherein the displacement values are relative displacements obtained when an electric cylinder moves, an initial value H1 is zero, a second displacement value is H2 when a measured object completely enters an electrolyte liquid surface, and a third displacement value is H3 when the measured object completely enters a second medium, namely high-temperature aluminum liquid. The gravity sensor 8 can be specifically made of a tollliduo weighing sensor TSC, and is used for measuring three gravity values, including an initial position, namely an initial gravity value G1 of the measuring part 6 in the air, a second gravity value G2 of the measuring part 6 when the measuring part 6 is moved downwards and completely enters the electrolyte and is subjected to buoyancy, and a third gravity value G3 of the measuring part 6 when the measuring part is continuously moved downwards and completely enters the high-temperature aluminum liquid and quickly transmits signals to the PLC controller.
Specifically, frame 3 includes first support body 301 and the second support body 302 of components of a whole that can function independently, hoisting device 1's straight line electricity jar or hydro-cylinder are installed on first support body 301, and PLC controller 2 installs on second support body 302, but the universal wheel of locating movement can be installed to the bottom of first support body 301 and second support body 302, the removal, the transport of the device of being convenient for. The PLC controller 2 is provided with a liquid crystal display screen, the liquid crystal display screen can display information such as electrolyte height, aluminum liquid height, electrolytic tank number real-time displacement and the like, the information is transmitted to the PLC controller 2 through data measured by a sensor, and the information is displayed on the liquid crystal display screen after measurement and calculation.
The working process of the invention is as follows:
the invention is mainly applied to the electrolytic aluminum production process, the electrolytic equipment comprises high-temperature electrolyte 12 and high-temperature aluminum liquid 13, the working principle of the measuring device is mainly based on Archimedes' law, the difference of buoyancy is caused by the different densities of the two substances, and the buoyancy generates upward force on the measuring piece, so that the positions of the measuring piece in the air and the electrolyte liquid are different; and measuring corresponding data through the arrangement of the sensor, transmitting the measured data to the controller, and calculating corresponding displacement values according to a set program to realize the measurement of the levels of the aluminum liquid and the electrolyte. Wherein, the height of the electrolyte is 140-200mm, the total height of the measuring part 6 is lower than 140mm, and the specific measuring steps are as follows:
acquiring initial state data; as shown in fig. 3, the measuring unit 6 collects a weight value in the air, i.e. not entering the liquid to be measured, at this time, the gravity sensor 8 obtains an initial gravity value G1, and at this time, the displacement sensor 7 obtains an initial displacement value H1 of the linear electric cylinder as 0; g1 and H1 are both transmitted to a PLC controller for recording;
step two, the measuring state is mainly divided into two steps;
firstly, starting a control switch 11, starting operation of a linear electric cylinder, enabling a working rod of the linear electric cylinder to extend downwards, driving a measuring piece 6 to descend through a horizontal connecting piece 4 and a vertical connecting piece 5, when the measuring piece 6 completely enters an electrolyte 12 on the upper layer, a gravity sensor changes under the action of buoyancy, a measured second gravity value G2 is transmitted to a PLC (programmable logic controller), and at the moment, a displacement sensor receives a signal to record a second displacement value H2 and transmits recorded data H2 to the PLC;
secondly, the working rod of the linear electric cylinder continuously extends downwards, when the measuring piece 6 completely enters the liquid level of the lower high-temperature aluminum liquid 12, the gravity sensor changes under the action of buoyancy force and transmits a measured third gravity value G3 to the PLC, the displacement sensor receives a signal to record a third displacement value H3 at the moment and transmits recorded data H3 to the PLC, and therefore the measurement of the heights of the electrolyte and the aluminum liquid is completed;
and step three, finally, combining three groups of data G1, G2, G3, H1, H2 and H3 measured by the displacement sensor 7 and the gravity sensor 8, and realizing accurate measurement of the levels of the aluminum liquid and the electrolyte according to a set calculation program language.
The invention obtains the numerical heights of the aluminum liquid and the electrolyte by calculating through the design of the double sensors, comprehensively considering different gravity generated after the buoyancy is received and combining the detected relative displacement value, and the measurement is accurate, the error is controlled to be about 0.5CM, and the highest error can reach 0.1 CM. In the measuring process, the sensor automatically realizes data measurement and transmission, and the calculation is carried out through a program, so that the manual participation items are reduced, the automation degree is high, and the measured data is more accurate.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (10)
1. A height measuring device for high-temperature electrolyte solution is characterized in that: the device comprises a lifting device (1), a PLC (programmable logic controller) (2), a rack (3) and a measuring piece (6), wherein the lifting device (1) and the PLC (2) are both installed on the rack (3), a bottom working rod of the lifting device (1) is connected to a horizontal connecting piece (4), one end of the horizontal connecting piece (4) is provided with a displacement sensor (7), the other end of the horizontal connecting piece is provided with a gravity sensor (8), and the measuring piece (6) is connected to the bottom surface of the horizontal connecting piece (4) through a vertical connecting piece (5); the working rod on the lifting device (1) is used for telescopic operation to drive the measuring piece (6) to descend into the high-temperature electrolyte through the horizontal connecting piece (4) and the vertical connecting piece (5); and the lifting device (1), the displacement sensor (7) and the gravity sensor (8) are electrically connected with the PLC (2).
2. A height measuring device for a hot electrolyte solution according to claim 1, characterized in that: the two sides of the lifting device (1) are symmetrically provided with guide assemblies.
3. A height measuring device for a hot electrolyte solution according to claim 2, characterized in that: the guide assembly comprises a guide rod (9) and a guide sleeve (10) which are matched, the guide sleeve (10) is installed on the bottom installation plate of the lifting device (1), and the guide rod (9) sequentially penetrates through the guide sleeve (10), the bottom installation plate of the lifting device (1) and the top plate of the rack from top to bottom and is connected with the horizontal connecting piece (4).
4. A height measuring device for a hot electrolyte solution as set forth in claim 3, wherein: the guide sleeve (10) is arranged on the top surface of a bottom mounting plate of the lifting device (1) and embedded into the mounting plate body or a top plate of the rack (3).
5. A height measuring device for a hot electrolyte solution as set forth in claim 3, wherein: the bottom of the guide rod (9) is connected to the top surface of the horizontal connecting piece (4) through a bolt.
6. A height measuring device for a hot electrolyte solution according to claim 1, characterized in that: the lifting device (1) specifically adopts a linear electric cylinder or an oil cylinder, and a working rod of the linear electric cylinder or the oil cylinder penetrates through the top surface of the rack (3) downwards and then is connected with the horizontal connecting piece (4).
7. A height measuring device for a hot electrolyte solution according to claim 1, characterized in that: horizontal connecting piece (4) specifically adopt the preparation of metal square plate to form, vertical connecting piece (5) adopt shaft-like structure, vertical connecting piece (5) fixed connection be in bottom surface one side of horizontal connecting piece (4).
8. A height measuring device for a hot electrolyte solution as set forth in claim 7, wherein: vertical connecting piece (5) welding or through bolted connection horizontal connecting piece (4) are last, the bottom of vertical connecting piece (5) is provided with the connecting hole, welding or through screwed connection have the connection ring on the top surface of measuring piece (6), the connecting hole with the connection ring links together through double hook connecting piece.
9. A height measuring device for a hot electrolyte solution as set forth in claim 7, wherein: the displacement sensor (7) is arranged on the bottom surface or the top surface of the horizontal connecting piece (4), and the linear electric cylinder or the oil cylinder is parallel; the gravity sensor (8) is installed on the top surface of the horizontal connecting piece (4) and is coincided with the center of the measuring piece (6) in the vertical direction.
10. A height measuring device for a hot electrolyte solution as set forth in claim 6, wherein: the frame (3) comprises a first frame body (301) and a second frame body (302) which are separated, a linear electric cylinder or an oil cylinder of the lifting device (1) is installed on the first frame body (301), the PLC (2) is installed on the second frame body (302), and universal wheels capable of being positioned and moved are installed at the bottoms of the first frame body (301) and the second frame body (302); and a control switch (11) is installed on the first frame body (301).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010324642.2A CN111337102A (en) | 2020-04-23 | 2020-04-23 | Height measuring device for high-temperature electrolyte solution |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010324642.2A CN111337102A (en) | 2020-04-23 | 2020-04-23 | Height measuring device for high-temperature electrolyte solution |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1967174A (en) * | 2006-10-23 | 2007-05-23 | 丹东东方测控技术有限公司 | Buoyancy scanning type polyphase liquid-level interface detection method and detector therefor |
| CN101487785A (en) * | 2008-01-16 | 2009-07-22 | 贵阳铝镁设计研究院 | Interface analysis apparatus for double-floating ball red mud setting tank |
| CN203414133U (en) * | 2013-06-26 | 2014-01-29 | 河南万和电气有限公司 | Intelligent object position measuring device |
| CN104480496A (en) * | 2015-01-09 | 2015-04-01 | 中南大学 | Measuring device and method for height of melt of aluminum electrolytic cell and pressure drop of furnace bottom |
| RU2016151941A (en) * | 2016-12-27 | 2018-06-27 | Александр Иванович Громыко | Method and apparatus for determining electrolyte and metal levels in an electrolyzer for producing aluminum |
-
2020
- 2020-04-23 CN CN202010324642.2A patent/CN111337102A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1967174A (en) * | 2006-10-23 | 2007-05-23 | 丹东东方测控技术有限公司 | Buoyancy scanning type polyphase liquid-level interface detection method and detector therefor |
| CN101487785A (en) * | 2008-01-16 | 2009-07-22 | 贵阳铝镁设计研究院 | Interface analysis apparatus for double-floating ball red mud setting tank |
| CN203414133U (en) * | 2013-06-26 | 2014-01-29 | 河南万和电气有限公司 | Intelligent object position measuring device |
| CN104480496A (en) * | 2015-01-09 | 2015-04-01 | 中南大学 | Measuring device and method for height of melt of aluminum electrolytic cell and pressure drop of furnace bottom |
| RU2016151941A (en) * | 2016-12-27 | 2018-06-27 | Александр Иванович Громыко | Method and apparatus for determining electrolyte and metal levels in an electrolyzer for producing aluminum |
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Application publication date: 20200626 |
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