CN115142092A - Aluminum cell electrolyte temperature detection system and method - Google Patents
Aluminum cell electrolyte temperature detection system and method Download PDFInfo
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- 239000003792 electrolyte Substances 0.000 title claims abstract description 117
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 25
- 238000001514 detection method Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims description 26
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 title description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 23
- 230000008859 change Effects 0.000 claims description 18
- 238000005868 electrolysis reaction Methods 0.000 claims description 13
- 238000004590 computer program Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000005259 measurement Methods 0.000 description 10
- 230000009471 action Effects 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 6
- 238000009529 body temperature measurement Methods 0.000 description 5
- 239000000155 melt Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000251131 Sphyrna Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
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Abstract
The application relates to the technical field of electrolytic production, in particular to an electrolyte temperature detection system of an aluminum electrolytic cell, which comprises a crust breaking hammer head, a signal acquisition module and a cell control machine, wherein a plurality of thermocouples are arranged in the crust breaking hammer head and are used for acquiring a temperature signal of the electrolyte; the thermocouple is connected with the cell controller through the signal acquisition module and is used for determining the electrolyte temperature. The system provided by the application obtains the electrolyte temperature in real time while simplifying the device for measuring the electrolyte temperature, and improves the detection precision of the electrolyte temperature.
Description
Technical Field
The application relates to the technical field of electrolytic production, in particular to a system and a method for detecting the electrolyte temperature of an aluminum electrolytic cell.
Background
In the aluminum electrolysis production, the temperature of the electrolyte is an important factor influencing the current efficiency and the electric energy efficiency, the stable electrolyte temperature is very important for stable production, and industrial practice proves that when the temperature of the electrolyte is reduced by 10 ℃, the current efficiency can be improved by 2 percent. The normal operation of the metallurgical production operation is influenced by the over-high or over-low temperature of the melt, and the temperature of the melt is detected and controlled in time, so that the method is one of important conditions for ensuring the normal operation of the aluminum electrolysis production.
In the prior art, when the electrolyte temperature is measured, a separate measuring mechanical structure needs to be added, or the measurement can be only carried out at an aluminum outlet end, or the estimation needs to be carried out by a soft measurement method.
Disclosure of Invention
In order to simplify the device for measuring the electrolyte temperature, obtain the electrolyte temperature in real time and improve the accuracy of temperature detection,
in a first aspect, the present application provides an aluminum electrolysis cell electrolyte temperature detection system comprising
A crust breaking hammer head, a signal acquisition module and a tank controller,
a plurality of thermocouples are arranged in the crust breaking hammer head and used for acquiring temperature signals of the electrolyte;
the thermocouple is connected with the cell controller through the signal acquisition module and is used for determining the electrolyte temperature.
Furthermore, the plurality of thermocouples are arranged in the crust breaking hammer head, wherein thermocouple layers formed by uniformly distributing the plurality of thermocouples are arranged along the circumferential direction of the central shaft of the crust breaking hammer head, and the number of the thermocouples forming each thermocouple layer is not less than two so as to obtain temperature signals of the electrolyte in multiple directions; the number of the thermocouple layers is not less than three, so that temperature signals of the electrolyte at multiple depths can be obtained.
Further, the distance D =1cm between the periphery of the thermocouple layer and the inner wall of the crust breaking hammer head;
furthermore, a first thermocouple layer is arranged at a position 2-5cm away from the tip end of the crust breaking hammer head, and the rest thermocouple layers are arranged at equal intervals from the first thermocouple layer to the direction away from the tip end, wherein the interval is 5cm.
Further, the system is provided with a plurality of crust breaking points, and the crust breaking hammer head obtains temperature signals of the electrolyte at a plurality of positions through the crust breaking points.
In a second aspect, the present application provides a method for detecting electrolyte temperature of an aluminum electrolysis cell, the method comprising obtaining a temperature signal of the electrolyte;
determining the electrolyte temperature based on the temperature signal.
Further, the obtaining the temperature signal of the electrolyte comprises obtaining the temperature signal of the electrolyte in a plurality of directions and a plurality of depths.
Further, the determining the electrolyte temperature based on the temperature signal includes,
calculating a temperature change rate of the temperature signal based on the temperature signal;
when the rate of temperature change is below a preset rate of change threshold,
and taking the maximum temperature in the temperature set corresponding to the temperature change rate as the electrolyte temperature.
In a third aspect, the present application provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor executes the program to implement the method steps according to any one of the second aspect.
In a fourth aspect, the present application provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the method steps of any of the second aspects.
Has the beneficial effects that:
the application provides an electrolyte temperature detection system of an aluminum electrolytic cell, which comprises a crust breaking hammer head, a signal acquisition module and a cell control machine, wherein a plurality of thermocouples are arranged in the crust breaking hammer head and are used for acquiring a temperature signal of the electrolyte; therefore, the temperature signal of the electrolyte is acquired in real time without additionally installing a temperature detection device; because the thermocouple is arranged inside the crust breaking hammer head, the thermocouple can better contact external electrolyte through the outer wall of the crust breaking hammer head, and the detection precision is prevented from being reduced due to crust formation at the periphery of the crust breaking hammer head; in the system provided by the application, the thermocouple is connected with the cell controller through the signal acquisition module and is used for determining the electrolyte temperature; because the electrolyte temperature of different directions and different degree of depth positions is different in the electrolyte, the electrolyte temperature signal of different directions and different degree of depth in the electrolyte is obtained through a plurality of thermocouples to this application to send the electrolyte temperature signal to the cell-controlled machine through signal acquisition module and carry out the analysis, confirm the electrolyte temperature that corresponds when the temperature is stable in the electrolyte, thereby improve the measurement accuracy of electrolyte temperature.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a system provided in embodiment 1 of the present application;
fig. 2 is a schematic diagram of an electronic structural device in embodiment 6 of the present application.
Reference numerals are as follows:
the device comprises a crust breaking hammer head-1, an upper thermocouple layer-2, a thermocouple layer-3, a lower thermocouple layer-4, an upper signal connecting wire-5, a middle signal connecting wire-6, a lower signal connecting wire-7, a crust breaking cylinder-8, a crust breaking electromagnetic valve-9, a multi-path voltage acquisition unit-10 and a tank controller-11.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
Example 1
Experimental results show that the temperature of the electrolyte is an important factor affecting current efficiency and electric energy efficiency. When the temperature of the electrolyte is too low, the concentration of dissolved aluminum in the electrolyte close to the anode is reduced, the dynamic viscosity is increased, the volume of anode gas is reduced, the thickness of a diffusion layer is increased, the dissolved aluminum is difficult to diffuse, the reduced aluminum is difficult to separate from the electrolyte, the carbon residue is difficult to separate from the electrolyte, and the oxidation loss of the aluminum is caused. In addition, the regular hearth is easy to be opened due to overhigh temperature of the groove, the upper furnace side becomes empty, the side furnace side is leaked electricity to cause current idle consumption, on the contrary, al2O3 in electrolyte is easy to be separated out to cause increase of furnace bottom sediment, the pressure drop of the furnace bottom is increased, and the crystal becomes furnace bottom crust and extending legs become fat due to overlong time, thereby bringing difficulty to production. A stable electrolyte temperature is very important for stable production. Industrial practice proves that when the temperature of the electrolyte is reduced by 10 ℃, the current efficiency can be improved by 2 percent. The normal operation of the metallurgical production operation is influenced by the over-high or over-low temperature of the melt, and the temperature of the melt is detected and controlled in time, so that the method is one of important conditions for ensuring the normal operation of the aluminum electrolysis production.
the crust breaking cylinders 8 are embedded in the upper part of the electrolytic bath, the number of the crust breaking cylinders is 4-8, the lower end of each crust breaking cylinder 8 is connected with a crust breaking hammer 1, and the crust breaking hammers 1 are uniformly distributed on the upper part of the center seam of the anode on the upper part of the electrolytic bath; the working position of the tip of the crust breaking hammer head 1 is a crust breaking point, and the crust breaking hammer heads 1 at different positions respectively obtain temperature signals of electrolytes at multiple positions through the crust breaking points at different positions;
the device comprises a multi-path voltage acquisition unit 10 arranged at the upper part of the electrolytic bath and a bath control machine 11 for controlling the crust breaking electromagnetic valve 9 to execute closing action through wired or wireless signals so as to control the crust breaking hammer head 1 to execute commands;
the cell control machine 11 is also used for analyzing the electrolyte temperature;
a plurality of thermocouples are arranged inside the crust breaking hammer head 1, and a thermocouple layer formed by uniformly distributing 2 thermocouples is arranged along the circumferential direction of a central shaft of the crust breaking hammer head 1 so as to obtain temperature signals of the electrolyte in two opposite directions; the number of the thermocouple layers is three, so as to obtain temperature signals of the electrolyte at multiple depths;
when the distance between the thermocouple and the crust breaking hammer head 1 is too small, the thermocouple is easily corroded due to too high temperature of the outer wall of the crust breaking hammer head 1, the service life of the thermocouple is shortened, and when the distance between the thermocouple and the crust breaking hammer head 1 is too large, the accuracy of temperature data acquired by the thermocouple is reduced under the influence of temperature propagation in an electrolyte, so that the distance D =1cm between the periphery of a thermocouple layer and the inner wall of the crust breaking hammer head 1 is set;
because the depth of the electrolyte is usually 15-30cm, in order to ensure that the thermocouple layer completely enters the electrolyte and obtain temperature signals of the electrolytes with different depths, a lower thermocouple layer 4 is arranged at a position 2-5cm away from the tip of the crust breaking hammer head, a thermocouple layer 3 and an upper thermocouple layer 2 are arranged at equal intervals from the lower thermocouple layer 4 to the direction away from the tip, and the interval between the lower thermocouple layer 4 and the thermocouple layer 3 is 5cm; the distance between the thermocouple layer 3 and the upper thermocouple layer 2 is 5cm;
the upper thermocouple layer 2, the middle thermocouple layer 3 and the lower thermocouple layer 4 are respectively connected with a multi-path voltage acquisition unit 10 through an upper signal connection wire 5, a middle signal connection wire 6 and a lower signal connection wire 7; the temperature signals collected by the upper thermocouple layer 2, the middle thermocouple layer 3 and the lower thermocouple layer 4 are converted by the multi-path voltage collecting unit 10 and are transmitted to the cell control machine 11 for determining the electrolyte temperature.
When daily crust breaking operation is carried out or the temperature of electrolyte needs to be measured, a cell control machine 11 sends a temperature measurement command to control a crust breaking electromagnetic valve 9 at the point and drive a crust breaking cylinder 8 to be conducted, a crust breaking hammer head 1 positioned at the lower end of the crust breaking cylinder 8 enters the electrolyte, an upper thermocouple layer 2, a middle thermocouple layer 3 and a lower thermocouple layer 4 respectively measure the peripheral temperature of a contact area, a changed thermocouple millivolt signal is sent to a multi-path acquisition unit 10 through a signal connection line, the cell control machine 11 respectively calculates the temperature data of each layer according to the received thermocouple signals of the upper, middle and lower three layers, the highest numerical value in each layer is selected to be determined as the temperature of the electrolyte, and when the temperature data are stable, the cell control machine sends an action command of disconnecting the crust breaking electromagnetic valve 9, and the crust breaking hammer head 1 retreats to the position above the electrolyte to prepare for next measurement.
In the embodiment 1, a plurality of thermocouples are arranged in the crust breaking hammer head 1 and are used for acquiring the temperature signal of the electrolyte; therefore, the temperature signal of the electrolyte is acquired in real time without additionally installing a temperature detection device; because the thermocouple is arranged inside the crust breaking hammer head 1, the thermocouple can better contact with external electrolyte through the outer wall of the crust breaking hammer head 1, and the detection precision is prevented from being reduced due to crust formation at the periphery of the crust breaking hammer head 1; in the system provided in embodiment 1, the thermocouple is connected to a cell controller 11 through a multi-channel acquisition unit 10, and is used to determine the electrolyte temperature; because the electrolyte temperature in different directions and different depth positions in the electrolyte are different, in embodiment 1, the electrolyte temperature signals in different directions and different depths in the electrolyte are obtained through a plurality of thermocouples, and are transmitted to the cell controller 11 through the multi-path acquisition unit 10 for analysis, and the corresponding electrolyte temperature is determined when the temperature in the electrolyte is stable, so that the measurement accuracy of the electrolyte temperature is improved.
Example 2
Based on the same inventive concept, in example 2, on a 400KA electrolytic cell, upper, middle and lower three-layer distributed thermocouple groups are embedded in a conical crust breaking hammer head at the lower end of a 3 rd point crust breaking cylinder at the upper part of the electrolytic cell, and each layer of thermocouple group is 2 thermocouples and has 6 thermocouples in total; the height of the conical crust breaking hammer is 400CM, the thermocouple groups distributed in the upper layer, the middle layer and the lower layer are respectively 5CM, 10CM and 15CM away from the bottom surface of the crust breaking hammer, 2 thermocouples in each layer are uniformly distributed on a circumferential diagonal line 1CM away from the wall surface of a pipeline, and are led out to a multi-path voltage acquisition unit with a communication function, which is arranged at the upper part of a groove, through a signal connecting line of the thermocouples, and the multi-path voltage acquisition unit is connected with a groove control machine for controlling the actions of the crust breaking hammer through a CAN bus connecting line.
When the electrolyte temperature needs to be measured, a cell control machine sends a temperature measurement command, controls a 3 rd point crust breaking electromagnetic valve and drives a crust breaking cylinder to be conducted, a crust breaking hammer head positioned at the lower end of the crust breaking cylinder enters the electrolyte, thermocouples distributed in the upper layer, the middle layer and the lower layer respectively measure the peripheral temperature of a contact area, a changed thermocouple millivolt signal is sent to a multi-path acquisition unit through a signal connecting line, the cell control machine acquires 6 thermocouple signals of the upper layer, the middle layer and the lower layer in real time to respectively calculate the value difference and the change rate of each layer, when the 5-second change rate of the highest point temperature is less than 2 ℃, the measurement is finished, the highest value 931 ℃ at the moment is selected to be determined as the electrolyte temperature, the cell control machine sends an action command of disconnecting the crust breaking electromagnetic valve, and the crust breaking hammer head retreats above the electrolyte to prepare for the next measurement.
Example 3
Based on the same inventive concept, in example 3, on a 500KA electrolytic cell, upper, middle and lower three-layer distributed thermocouple groups are embedded in a conical crust breaking hammer head at the lower end of a 4 th point crust breaking cylinder at the upper part of the electrolytic cell, and each layer of thermocouple group is 3 thermocouples and 9 thermocouples in total; the height of the conical crust breaking hammer is 400CM, the thermocouple groups distributed in the upper layer, the middle layer and the lower layer are respectively 5CM, 10CM and 15CM away from the bottom surface of the crust breaking hammer, 3 thermocouples in each layer are uniformly distributed on a circumferential isosceles line 1CM away from the wall surface of a pipeline, and are led out to a multi-path voltage acquisition unit with a communication function and arranged at the upper part of a groove through a signal connecting line of the thermocouples, and the multi-path voltage acquisition unit is connected with a groove control machine for controlling the movement of the crust breaking hammer through a CAN bus connecting line.
When the electrolyte temperature needs to be measured, a tank control machine sends a temperature measurement command, controls a 4 th point crust breaking electromagnetic valve and drives a crust breaking cylinder to be conducted, a crust breaking hammer head positioned at the lower end of the crust breaking cylinder enters the electrolyte, thermocouples distributed in the upper layer, the middle layer and the lower layer respectively measure the peripheral temperature of a contact area, a changed thermocouple millivolt signal is sent to a multi-path acquisition unit through a signal connecting line, the tank control machine acquires 9 thermocouple signals in the upper layer, the middle layer and the lower layer in real time to respectively calculate the value difference and the change rate of each layer, when the change rate of the highest point temperature is less than 2 ℃, the measurement is finished, the highest value 928 ℃ at the moment is selected to be determined as the electrolyte temperature, the tank control machine sends an action command of disconnecting the crust breaking electromagnetic valve, and the crust breaking hammer head is retreated above the electrolyte to prepare for the next measurement.
Example 4
Based on the same inventive concept, in example 4, on a 300KA electrolytic cell, thermocouple groups distributed in an upper layer, a middle layer and a lower layer are embedded in a conical crust breaking hammer head at the lower end of a 2 nd point crust breaking cylinder at the upper part of the electrolytic cell, and each layer of thermocouple group is 2 thermocouples, and the number of the thermocouple groups is 6; the height of the conical crust breaking hammer is 400CM, thermocouple groups distributed in the upper layer, the middle layer and the lower layer are respectively 3CM, 8CM and 13CM away from the bottom surface of the crust breaking hammer, 2 thermocouples in each layer are uniformly distributed on a circumferential isosceles line 1CM away from the wall surface of a pipeline, and are led out to a multi-path voltage acquisition unit with a communication function and arranged at the upper part of a groove through a signal connecting line of the thermocouples, and the multi-path voltage acquisition unit is connected with a groove control machine for controlling the movement of the crust breaking hammer through a CAN bus connecting line.
When the electrolyte temperature needs to be measured, a cell control machine sends a temperature measurement command, controls a 2 nd-point crust breaking electromagnetic valve and drives a crust breaking cylinder to be conducted, a crust breaking hammer head positioned at the lower end of the crust breaking cylinder enters the electrolyte, thermocouples distributed in the upper layer, the middle layer and the lower layer respectively measure the peripheral temperature of a contact area, a changed thermocouple millivolt signal is sent to a multi-path acquisition unit through a signal connecting line, the cell control machine acquires 6 thermocouple signals of the upper layer, the middle layer and the lower layer in real time to respectively calculate the numerical difference and the change rate of each layer, when the 5-second change rate of the highest point temperature is less than 2 ℃, the measurement is finished, the highest value 926 ℃ at the moment is selected to be determined as the electrolyte temperature, the cell control machine sends an action command of disconnecting the crust breaking electromagnetic valve, and the crust breaking hammer head retreats above the electrolyte to prepare for the next measurement.
Example 5
Based on the same inventive concept, embodiment 5 provides a method for detecting the electrolyte temperature of an aluminum electrolysis cell, which comprises
S1, acquiring a temperature signal of the electrolyte, including,
acquiring temperature signals of the electrolyte in multiple directions;
acquiring temperature signals of the electrolyte at a plurality of depths;
s2, determining the electrolyte temperature based on the temperature signal;
s21, calculating the temperature change rate of the temperature signal based on the temperature signal;
s22, judging whether the temperature change rate is lower than a preset change rate threshold value or not, if so,
and taking the maximum temperature in the temperature set corresponding to the temperature change rate as the electrolyte temperature.
When the daily crust breaking operation process is carried out or the electrolyte temperature needs to be measured, the cell control machine sends out crust breaking to control the crust breaking electromagnetic valve at the point and drive the crust breaking cylinder to be conducted, a crust breaking hammer head positioned at the lower end of the crust breaking cylinder enters the electrolyte, thermocouples distributed in the upper layer, the middle layer and the lower layer respectively measure the peripheral temperature of a contact area, a variable thermocouple millivolt signal is sent to the multi-path acquisition unit through a compensation lead, the cell control machine respectively calculates the temperature data of each layer according to the received thermocouple signals of the upper layer, the middle layer and the lower layer, when the temperature data are stable, the highest numerical value in each layer is selected to be determined as the electrolyte temperature, and the cell control machine sends an action command of disconnecting the crust breaking electromagnetic valve.
The method can solve the problem of the precision of temperature measurement under different electrolyte heights, a measuring probe device is not required to be independently arranged, and meanwhile, the thermocouple distributed in each layer in a circular manner can better contact with external electrolyte through the outer wall of the hammer head, so that the influence on the detection precision due to incrustation at the periphery of the crust breaking hammer head is avoided.
The method is of great significance to improving electrolyte temperature time-sharing online detection and guiding the control effect of energy balance.
Example 6
Based on the same inventive concept, embodiment 6 of the present application provides an electronic device, as shown in fig. 2, including a memory 304, a processor 302, and a computer program stored on the memory 304 and operable on the processor 302, wherein the processor 302 executes the program to implement the steps of the method for detecting the electrolyte temperature of an aluminum electrolysis cell.
Where in fig. 2 a bus architecture (represented by bus 300), bus 300 may include any number of interconnected buses and bridges, bus 300 linking together various circuits including one or more processors, represented by processor 302, and memory, represented by memory 304. The bus 300 may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface 306 provides an interface between the bus 300 and the receiver 301 and transmitter 303. The receiver 301 and the transmitter 303 may be one and the same element, i.e. a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 302 is responsible for managing the bus 300 and general processing, and the memory 304 may be used for storing data used by the processor 302 in performing operations.
Example 7
Based on the same inventive concept, embodiment 7 of the present invention provides a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the steps of the above-mentioned aluminum electrolysis cell electrolyte temperature detection method.
The algorithms and displays presented herein are not inherently related to any particular computer, virtual machine, or other apparatus. Various general purpose systems may also be used with the teachings herein. The required structure for constructing such a system is apparent from the description above. Moreover, the present invention is not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the present invention as described herein, and any descriptions of specific languages are provided above to disclose the best mode of the invention.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
The various component embodiments of the invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functionality of some or all of the components in an electronic device according to embodiments of the present invention. The present invention may also be embodied as apparatus or device programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein. Such programs implementing the present invention may be stored on computer-readable media or may be in the form of one or more signals. Such a signal may be downloaded from an internet website or provided on a carrier signal or in any other form.
The foregoing are merely exemplary embodiments of the present application and no attempt is made to show structural details of the invention in more detail than is necessary for the fundamental understanding of the art, the description taken with the drawings making apparent to those skilled in the art how the several forms of the invention may be embodied in practice with the teachings of the invention. It should be noted that, for those skilled in the art, without departing from the structure of the present application, several changes and modifications can be made, which should also be regarded as the protection scope of the present application, and these will not affect the effect of the implementation of the present application and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. An electrolyte temperature detection system of an aluminum electrolysis cell is characterized by comprising
A crust breaking hammer head, a signal acquisition module and a tank controller,
a plurality of thermocouples are arranged in the crust breaking hammer head and used for acquiring temperature signals of the electrolyte;
the thermocouple is connected with the cell controller through the signal acquisition module and is used for determining the electrolyte temperature.
2. The electrolyte temperature detection system for the aluminum electrolytic cell according to claim 1, wherein the plurality of thermocouples arranged inside the crust-breaking hammer head comprise thermocouple layers which are formed by a plurality of thermocouples distributed uniformly along the circumferential direction of the central shaft of the crust-breaking hammer head, and the number of the thermocouples forming each thermocouple layer is not less than two, so as to obtain the temperature signals of the electrolyte in multiple directions; the number of the thermocouple layers is not less than three, so that temperature signals of the electrolyte at multiple depths can be obtained.
3. The aluminum electrolysis cell electrolyte temperature detection system according to claim 2, wherein the distance D =1cm between the periphery of the thermocouple layer and the inner wall of the crust-breaking hammer.
4. The aluminum electrolysis cell electrolyte temperature detection system according to claim 2, wherein a first thermocouple layer is disposed at a distance of 2-5cm from the tip of the crust-breaking hammer head, and the rest of the thermocouple layers are disposed at equal intervals from the first thermocouple layer in a direction away from the tip, and the interval is 5cm.
5. The aluminum electrolysis cell electrolyte temperature detection system according to claim 1, wherein the system is provided with a plurality of crust breaking points, and the crust breaking hammer obtains the temperature signals of the electrolyte at a plurality of positions through the plurality of crust breaking points.
6. The method for detecting the electrolyte temperature of the aluminum electrolytic cell is characterized by comprising the following steps
Acquiring a temperature signal of the electrolyte;
determining the electrolyte temperature based on the temperature signal.
7. The method of claim 6, wherein the obtaining the temperature signal of the electrolyte comprises obtaining the temperature signal of the electrolyte in a plurality of directions and at a plurality of depths.
8. The method of claim 6, wherein the determining the electrolyte temperature based on the temperature signal comprises,
calculating a temperature change rate of the temperature signal based on the temperature signal;
when the temperature change rate is below a preset change rate threshold,
and taking the maximum temperature in the temperature set corresponding to the temperature change rate as the electrolyte temperature.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor realizes the method steps of any of claims 6-8 when executing the program.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method steps of any one of claims 6 to 8.
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