CN103014774B - Aluminum electrolytic bath anode current distribution-based online measuring device and measuring method thereof - Google Patents
Aluminum electrolytic bath anode current distribution-based online measuring device and measuring method thereof Download PDFInfo
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- CN103014774B CN103014774B CN201310012454.6A CN201310012454A CN103014774B CN 103014774 B CN103014774 B CN 103014774B CN 201310012454 A CN201310012454 A CN 201310012454A CN 103014774 B CN103014774 B CN 103014774B
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Abstract
The invention discloses an aluminum electrolytic bath anode current distribution-based online measuring device and a measuring method thereof, which can solve the problem that the existing measurement mode can not truly reflect the distribution condition of the aluminum electrolytic bath anode current. The online measuring device comprises a control system, a substrate, an anode current collector, a signal transmission device, a feed mechanism, and a signal collecting device, wherein the substrate is provided with a mounting hole, the anode current collector, the signal transmission device and the feed mechanism are arranged on the substrate, the signal collecting device is arranged on the feed mechanism; and the anode current collector is connected with the control system through wireless communication. Through the scheme, according to the aluminum electrolytic bath anode current distribution-based online measuring device and the measuring method thereof, the measurement on the voltage and temperature of an anode guide rod can be measured, so that the purpose of obtaining the current distribution condition of the anode guide rod can be achieved, and by combining the practice with theories perfectly, the aluminum electrolytic bath anode current distribution-based online measuring device has the advantages of being smart in design, low in production cost, simple in flow, high in measurement accuracy, convenient to use, and high in working efficiency.
Description
Technical field
The present invention relates to a kind of on-line measurement device based on aluminum cell anodic current distribution, specifically, relate to a kind of on-line measurement device based on aluminum cell anodic current distribution and measuring method thereof.
Background technology
At present, in existing electrolysis of aluminum industry in prebaked cell production process, need carry out the measurement of Current distribution in anode every day, the manual measurement means of the equidistant volts lost of off-line that what it adopted is are measured.
But the impact that this kind of metering system brings owing to can not eliminate the current measurement of anode rod temperature variation antianode, therefore there is very large measuring error; In addition, again because manual measurement can only measure an anode at every turn, carry out the measurement of next anode after having operated again, so repeatedly carry out, not only process of measurement is complicated, and workload is large, and the time is long, inefficiency.Because the result measured can not send into computer control system in real time, but must need first measurement result to be submitted to related personnel, and then be input to Controlling System by related personnel according to code, the result lifetime measured is poor, therefore, existing metering system can not reflect the distribution situation of anode electrolytic cell electric current truly.
In addition, along with the carrying out of electrolysis production process, anode height also needs real-time adjustment, and along with the carrying out of electrolysis production process, anode is also constantly being consumed, just need at interval of the regular hour relative position adjusting anode rod and bus like this, thus adopt hard-wired current measurement frame just must constantly dismounting measurement bay, this also brings great inconvenience to surveying work.
In sum, if do not overcome the above problems, anodic current is measured and cannot be produced a desired effect, and cannot true reappearance anode electrolytic cell distribution of current situation and variation tendency, provide data promptly and accurately for operator adjust anode height in time, thus effectively prevent because anodic current concentrates the anode release failure caused, the current efficiency of further raising electrolyzer, reduce anode consumption, reduce power consumption, and then reach the object of the conservation of power energy.
Summary of the invention
The object of the present invention is to provide the on-line measurement device that a kind of aluminum cell anodic current distributes, mainly solve the problem that existing metering system truly can not reflect the distribution situation of anode electrolytic cell electric current.
To achieve these goals, the technical solution used in the present invention is as follows:
Based on the on-line measurement device of aluminum cell anodic current distribution, comprise Controlling System, also comprise the substrate being provided with open holes, anode current collector, signal transmitting apparatus and propulsive mechanism are on the substrate set, and are arranged on the signal pickup assembly on this propulsive mechanism; Described anode current collector is connected with this Controlling System by cableless communication.
Specifically, described signal transmitting apparatus comprises the support be fixed on substrate, and to be arranged on this support, for Signal transmissions that signal pickup assembly is gathered to the aviation plug of anode current collector.
Further, described propulsive mechanism comprises the retaining plate be fixed on substrate, is arranged on the locking hoop on this retaining plate, and is connected with this locking hoop and moveable shifting axle; Described shifting axle is connected with signal pickup assembly.
Specifically, described signal pickup assembly comprises the probe fixing frame be connected with shifting axle, to be arranged on respectively in this probe fixing frame and the first probe springs symmetrical centered by shifting axle and the second probe springs, the first probe be connected with the first probe springs, the second probe be connected with the second probe springs, and to be arranged in probe fixing frame and temperature-sensitive backing plate between the first probe and the second probe.
Again further, the anti-rotation slide plate rotated when the junction of described shifting axle and probe fixing frame is also provided with for preventing shifting axle from moving.
Owing to relating to the detection of probe to electric current, therefore, described probe fixing frame is made up of insulating material.
As preferably, described probe fixing frame is made up of 3240 insulcretes.
Meanwhile, described substrate is made up of stainless steel or ceramic.
On above-mentioned hardware foundation, present invention also offers the measuring method of the on-line measurement device that this distributes based on aluminum cell anodic current, comprise the following steps:
(1) by the open holes be arranged on substrate, substrate is installed on the bus of anode electrolytic cell guide rod;
(2) utilize propulsive mechanism driving signal gathering device to make this signal pickup assembly and anode electrolytic cell guide rod close contact, and gather real-time voltage signal and the temperature signal of anode electrolytic cell guide rod by signal pickup assembly;
(3) voltage signal of signal pickup assembly collection and temperature signal are transferred to anode current collector by aviation plug, and are translated into anodic current signal by anode current collector;
(4) anodic current signal is emitted to Controlling System by anode current collector, is transformed, processes, draw the distribution situation of anodic current by Controlling System to the signal received.
Specifically, described step (2) comprises the following steps:
(2a) unscrew locking hoop counterclockwise, and promote shifting axle toward moving near the direction of anode rod until the first probe, the second probe and temperature-sensitive backing plate all with the intimate surface contact of anode rod;
(2b) screw locking hoop clockwise, make it lock shifting axle, now, the real-time voltage signal of the first probe and the second probe collection anode rod, temperature-sensitive backing plate gathers the real time temperature signal of anode rod.
Principle of design of the present invention is: according to Ohm's law, the resistance of the voltage on this section of conductor divided by this section of conductor is equaled by the electric current of one section of conductor, the resistance of one section of conductor and the cross-sectional area of this section of conductor, length, resistivity is relevant, and resistivity is not only relevant with the material character of conductor, also relevant with the height of temperature, because the sectional area known constant of anode rod is constant, therefore, when spacing one timing of the first probe and the second probe, what it was measured is equidistant voltage, because the resistivity of anode rod is also known, therefore, as long as record the voltage of a determining deviation on guide rod and the temperature on this section of guide rod, just can obtain the electric current of anode rod.Therefore, the technique means that the present invention adopts is installed to by substrate on the bus jig of anode rod, make its can anode rod lifting while, together can move with anode rod, thus ensure two probes and relative movement can not occur between temperature-sensitive backing plate and anode rod, guarantee measuring accuracy, then locking hoop is utilized to drive shifting axle to move, thus make the first probe, second probe and temperature-sensitive backing plate and tested anode rod close contact, just real-time current and the temperature of this anode rod can accurately be obtained, last by anode current collector the signal of collection is transmitted in Controlling System just can process again draw test result.
Compared with prior art, the present invention has following beneficial effect:
(1) the present invention is reasonable in design, and one-piece construction is simple, and easy for installation, result of use is good.
(2) the present invention will integrate theory with practice dexterously, which employs a kind of brand-new structure and mounting means, substrate is arranged on the bus jig of anode rod, device together can be moved with anode rod while anode rod lifting, and promote shifting axle by unscrewing of locking hoop, and then drive probe and temperature-sensitive backing plate to be close to anode rod, make its electric current measuring anode rod and temperature, current distributions is drawn finally by Controlling System, structure is connected with flow process perfection by the present invention, relative movement is not produced between measuring apparatus and anode rod, thus do not need dismounting when promoting anode rod and adjustment pole span and reinstall, and adopt the communication that the mode of cableless communication realizes between Controlling System and measure portion, thus instead of the means of traditional manual entry take off data, therefore, it reaches On-line sampling system, and transmit measuring result quickly and accurately, thus draw the object of the distribution situation of anodic current, measuring accuracy is very high, detection time is also very short.
(3) the present invention utilizes the temperature of temperature-sensitive backing plate antianode guide rod to detect in real time, can carry out additional compensation for the temperature of anode rod electric current.
(4) the present invention is provided with anti-rotation slide plate, can prevent shifting axle from rotating when mobile, affect the actual measurement spacing of probe on guide rod, thus the last precision measured of impact.
(5) in the present invention, substrate adopts stainless steel or ceramic to make, and therefore, it has resistant to elevated temperatures characteristic, can come into operation better, and further increases the measuring accuracy of whole measuring apparatus.
(6) flow process of the present invention is succinct, effectively can carry out continuous detecting by antianode electric current, and do not need other power-equipment to assist when detecting yet, not only reduce anode consumption, the conservation of power energy, and it is free from environmental pollution, environmental protection and energy saving, working efficiency is high, and the present invention utilizes lower cost to achieve the innovation of science and technology, breaches the restriction of industry, it has the unrivaled huge advantage of prior art, therefore, compared with prior art, the present invention has outstanding substantive distinguishing features and significant progress.
(7) cost performance of the present invention is high, with strong points, manufacturing cost, maintenance cost are all very low, be easy to batch production and stable performance, and the present invention is not only confined to measure aluminum cell anodic current, it also goes for any equipment and the device that need to carry out measurement of inductance, therefore, the present invention has very high practical value and promotional value, is suitable for commercially applying on a large scale.
Accompanying drawing explanation
Fig. 1 is front view of the present invention.
Fig. 2 is the side-view of parts thereof of the present invention.
Fig. 3 is using state figure of the present invention.
Fig. 4 is schematic flow sheet of the present invention.
Wherein, the component name that above-mentioned Reference numeral is corresponding is called:
1-Controlling System, 2-substrate, 3-open holes, 4-locking hoop, 5-shifting axle, 6-retaining plate, 7-probe fixing frame, 8-first probe, 9-first probe springs, 10-temperature-sensitive backing plate, 11-second probe, 12-second probe springs, 13-anti-rotation slide plate, 14-support, 15-aviation plug, 16-anode current collector, 17-bus jig.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described, and embodiments of the present invention include but not limited to the following example.
Embodiment
As shown in figures 1-4, the present invention is for measuring the real-time distribution situation of aluminum cell anodic current, it comprises Controlling System 1, substrate 2, signal transmitting apparatus, propulsive mechanism, signal pickup assembly and anode current collector 16, wherein, Controlling System 1 for processing the signal gathered, thus obtains the real-time current distribution situation of anode rod, this Controlling System 1 is identical with the Controlling System in background technology, it is prior art, therefore, no longer describes in detail to it.Controlling System 1 is connected with anode current collector 16 by the mode of cableless communication, therefore, anode current collector 16 can by the form of wireless transmission by signal transmission to Controlling System 1.Described anode current collector 16 is installed on a substrate 2, substrate 2 is then provided with open holes 3, this open holes 3 matches with the nut on the bus jig 17 of anode rod, because signal transmitting apparatus and propulsive mechanism are installed on substrate 2, and signal pickup assembly is connected with propulsive mechanism, therefore, after open holes 3 is advanced the nut of bus jig 17, test section of the present invention can be fixed on bus by this nut, substrate 2 can be moved along with the movement of bus, thus realize together moving with anode rod, guarantee relative movement to occur between the two, ensure the precision measured.And as preferred, this substrate 2 is made up of stainless steel or ceramic.
The signal transmission that signal transmitting apparatus is used for signal pickup assembly to gather is to anode current collector 16, and specifically, this signal transmitting apparatus comprises fixing support 14 on a substrate 2 and the aviation plug 15 be arranged on this support 14.Aviation plug 15 is prior art, it is generally made up of plug and socket, by plug, the plugging together and the connection and the disconnection that are separated realizing circuit of socket, therefore the signal of signal pickup assembly collection can transfer to anode current collector 16 by it when the plug and socket of aviation plug 15 plugs together.
Propulsive mechanism is then for the mechanism by signal pickup assembly and anode rod close contact, and it comprises fixing retaining plate 6 on a substrate 2, is arranged on the locking hoop 4 on this retaining plate 6, and is connected with this locking hoop 4 and is driven the shifting axle 5 of movement by it; Described signal pickup assembly then comprises the probe fixing frame 7 be connected with shifting axle 5, be arranged on the first probe springs 9 and the second probe springs 12 in this probe fixing frame 7 and symmetrical centered by shifting axle 5 respectively, the first probe 8 be connected with the first probe springs 9, the second probe 11 be connected with the second probe springs 12, and to be arranged in probe fixing frame 7 and temperature-sensitive backing plate 10 between the first probe 8 and the second probe 11, temperature-sensitive backing plate 10 is prior art, and it is made up of backing plate and the electronic temperature sensing device be arranged in backing plate.The front end of shifting axle 5 is connected with probe fixing frame 7 and temperature-sensitive backing plate 10 by bolt, this probe fixing frame 7 is made up of insulating material and (or metallic substance also can be adopted to make, then insulating sleeve is increased at its outside surface), as preferably, in the present invention, probe fixing frame 7 is made up of 3240 insulcretes.Shifting axle 5 coordinate with locking hoop 4 realize probe fixing frame 7 towards near or direction away from anode rod move, the front end of the first probe 8 and the second probe 11 is all in umbrella head, rear end is screw thread, two probes can be made to realize moving forward and backward by coordinating with the first probe springs 9 and the second probe springs 12, in the process advanced, first probe 8 and the continuous indentation of the second probe 11 meeting, owing to there being the effect of the first probe springs 9 and the second probe springs 12, therefore, first, second probe can keep the good contact with anode rod all the time, and this process can last till that whole progradation terminates, till this progradation can last till temperature-sensitive backing plate 10 and anode rod close contact simultaneously, therefore, coordinate can facilitate by its elastic force with the first probe springs 9 and the second probe springs 12, rapidly by first, second probe and temperature-sensitive backing plate 10 are fixed on anode rod.In addition, shifting axle 5 move drive probe fixing frame 7 to move time, for preventing shifting axle 5 from rotating, be also provided with anti-rotation slide plate 13 at shifting axle 5 and the junction of both probe fixing frame 7.
By above-mentioned setting, just the real-time voltage of antianode guide rod and temperature can measure well, thus draw the current distributions of anode rod.As shown in Figure 3,4, working process of the present invention is as follows:
(1) by the open holes be arranged on substrate, substrate is installed on the bus of anode electrolytic cell guide rod;
(2) utilize propulsive mechanism driving signal gathering device to make this signal pickup assembly and anode electrolytic cell guide rod close contact, and gather real-time voltage signal and the temperature signal of anode electrolytic cell guide rod by signal pickup assembly; In this process, due to the real time temperature of anode rod can be learnt in real time, therefore can be compensated by the temperature of additional mode antianode guide rod electric current, make the requirement of its coincidence measurement all the time;
The specific implementation process of this step is:
(2a) unscrew locking hoop counterclockwise, and promote shifting axle toward moving near the direction of anode rod until the first probe, the second probe and temperature-sensitive backing plate all with the intimate surface contact of anode rod;
(2b) screw locking hoop clockwise, make it lock shifting axle, now, the real-time voltage signal of the first probe and the second probe collection anode rod, temperature-sensitive backing plate gathers the real time temperature signal of anode rod; When gathering the temperature signal of anode rod;
(3), after the real-time voltage signal collecting anode rod and temperature, the voltage signal of signal pickup assembly collection and temperature signal are transferred to anode current collector by aviation plug, and are translated into anodic current signal by anode current collector;
(4) anodic current signal is sent to Controlling System by the mode of wireless transmission by anode current collector, is transformed, processes, finally draw the real-time distribution situation of anodic current by Controlling System to the signal received.
Present invention employs a kind of brand-new structure design, its temperature can be detected while measurement anode rod voltage, eliminate the impact because anode rod temperature variation causes the current measurement of anode rod change in resistance antianode to bring, and by the mode of transmission over radio, measuring result is sent to Controlling System and processes, it can reflect the distribution situation of anode electrolytic cell electric current truly, and measuring accuracy is high, measure portion of the present invention can move along with the movement of bus, thus it can be moved with anode rod simultaneously, the step moment is consistent, do not need artificial installation and removal it continually just can to measure in real time the equidistant voltage of moment holding anode guide rod, the present invention be directed to innovation and the improvement greatly that prior art proposes, it has substantial improvement, really solve the anodic current problems of measurement that always annoying electrolysis of aluminum industry.The present invention can measure the electric current by any known materials conductor, and therefore, it has very high practical value and promotional value.
According to above-described embodiment, just the present invention can be realized well.What deserves to be explained is; under prerequisite based on said structure design, for solving same technical problem, even if some making on the invention are without substantial change or polishing; the essence of the technical scheme adopted is still consistent with the present invention, also should in protection scope of the present invention.
Claims (9)
1. based on the on-line measurement device of aluminum cell anodic current distribution, comprise Controlling System (1), it is characterized in that, also comprise the substrate (2) being provided with open holes (3), be arranged on anode current collector (16), signal transmitting apparatus and the propulsive mechanism on this substrate (2), and be arranged on the signal pickup assembly on this propulsive mechanism; Described anode current collector (16) is connected with Controlling System (1) by cableless communication; Described signal transmitting apparatus comprises the support (14) be fixed on substrate (2), and be arranged on this support (14) upper, for Signal transmissions that signal pickup assembly is gathered to the aviation plug (15) of anode current collector (16).
2. the on-line measurement device based on aluminum cell anodic current distribution according to claim 1, it is characterized in that, described propulsive mechanism comprises the retaining plate (6) be fixed on substrate (2), be arranged on the locking hoop (4) on this retaining plate (6), and be connected with this locking hoop (4) and moveable shifting axle (5); Described shifting axle (5) is connected with signal pickup assembly.
3. the on-line measurement device based on aluminum cell anodic current distribution according to claim 2, it is characterized in that, described signal pickup assembly comprises the probe fixing frame (7) be connected with shifting axle (5), be arranged on this probe fixing frame (7) respectively to go up and the first probe springs (9) symmetrical centered by shifting axle (5) and the second probe springs (12), the first probe (8) be connected with the first probe springs (9), the second probe (11) be connected with the second probe springs (12), and be arranged on probe fixing frame (7) and go up and be positioned at the temperature-sensitive backing plate (10) between the first probe (8) and the second probe (11).
4. the on-line measurement device based on aluminum cell anodic current distribution according to claim 3, it is characterized in that, the anti-rotation slide plate (13) rotated when described shifting axle (5) and the junction of probe fixing frame (7) are also provided with for preventing shifting axle (5) mobile.
5. the on-line measurement device based on aluminum cell anodic current distribution according to claim 4, it is characterized in that, described probe fixing frame (7) is made up of insulating material.
6. the on-line measurement device based on aluminum cell anodic current distribution according to claim 5, it is characterized in that, described probe fixing frame (7) is made up of 3240 insulcretes.
7. the on-line measurement device based on aluminum cell anodic current distribution according to claim 1 ~ 6 any one, it is characterized in that, described substrate (2) is made up of stainless steel or ceramic.
8., based on the measuring method of the on-line measurement device of aluminum cell anodic current distribution, it is characterized in that, comprise the following steps:
(1) by the open holes be arranged on substrate, substrate is installed on the bus of anode electrolytic cell guide rod;
(2) utilize propulsive mechanism driving signal gathering device to make this signal pickup assembly and anode electrolytic cell guide rod close contact, and gather real-time voltage signal and the temperature signal of anode electrolytic cell guide rod by signal pickup assembly;
(3) voltage signal of signal pickup assembly collection and temperature signal are transferred to anode current collector by aviation plug, and are translated into anodic current signal by anode current collector;
(4) anodic current signal is emitted to Controlling System by anode current collector, is transformed, processes, draw the distribution situation of anodic current by Controlling System to the signal received.
9. the measuring method of the on-line measurement device based on aluminum cell anodic current distribution according to claim 8, it is characterized in that, described step (2) comprises the following steps:
(2a) unscrew locking hoop counterclockwise, and promote shifting axle toward moving near the direction of anode rod until the first probe, the second probe and temperature-sensitive backing plate all with the intimate surface contact of anode rod;
(2b) screw locking hoop clockwise, make it lock shifting axle, now, the real-time voltage signal of the first probe and the second probe collection anode rod, temperature-sensitive backing plate gathers the real time temperature signal of anode rod.
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| ITMI20130505A1 (en) * | 2013-04-04 | 2014-10-05 | Industrie De Nora Spa | CELL FOR ELECTROLYTIC EXTRACTION OF METALS |
| CN104278295B (en) * | 2013-07-04 | 2018-08-28 | 贵阳铝镁设计研究院有限公司 | A kind of aluminum cell anodic current distribution measurement system and its measurement method |
| CN104018187B (en) * | 2014-06-18 | 2016-08-31 | 四川华索自动化信息工程有限公司 | One is non-maintaining rolls two-layer elastic construction Current distribution in anode real-time measurement system |
| CN104120455B (en) * | 2014-07-25 | 2017-11-28 | 湖南阿尔惠特科技股份有限公司 | The anode current On-line Measuring Method and device of a kind of aluminium cell |
| CN105441980A (en) * | 2015-05-28 | 2016-03-30 | 贵阳铝镁设计研究院有限公司 | Online monitoring device for anode current distribution of aluminum electrolysis cell and monitoring method of online monitoring device |
| CN105441981A (en) * | 2015-11-27 | 2016-03-30 | 贵阳铝镁设计研究院有限公司 | Method and device for wirelessly detecting current of aluminum electrolytic anode rod |
| CN110501561A (en) * | 2019-09-27 | 2019-11-26 | 贵阳铝镁设计研究院有限公司 | Aluminum cell anodic current is distributed on-line detecting system and its method |
| CN112162138A (en) * | 2020-08-27 | 2021-01-01 | 中铝郑州有色金属研究院有限公司 | Device and method for measuring balanced anode current distribution |
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| US4786379A (en) * | 1988-02-22 | 1988-11-22 | Reynolds Metal Company | Measuring current distribution in an alumina reduction cell |
| CN101220489A (en) * | 2007-10-12 | 2008-07-16 | 北京华深中色科技发展有限公司 | On-line testing method for aluminum cell anodic current distribution and monitoring device |
| CN203096194U (en) * | 2013-01-14 | 2013-07-31 | 四川华索自动化信息工程有限公司 | Online measuring device based on aluminum electrolysis cell anode current distribution |
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Patent Citations (3)
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|---|---|---|---|---|
| US4786379A (en) * | 1988-02-22 | 1988-11-22 | Reynolds Metal Company | Measuring current distribution in an alumina reduction cell |
| CN101220489A (en) * | 2007-10-12 | 2008-07-16 | 北京华深中色科技发展有限公司 | On-line testing method for aluminum cell anodic current distribution and monitoring device |
| CN203096194U (en) * | 2013-01-14 | 2013-07-31 | 四川华索自动化信息工程有限公司 | Online measuring device based on aluminum electrolysis cell anode current distribution |
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