CN203625494U - Anode stroke measurement device for aluminum electrolysis cell - Google Patents
Anode stroke measurement device for aluminum electrolysis cell Download PDFInfo
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- CN203625494U CN203625494U CN201320866951.8U CN201320866951U CN203625494U CN 203625494 U CN203625494 U CN 203625494U CN 201320866951 U CN201320866951 U CN 201320866951U CN 203625494 U CN203625494 U CN 203625494U
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- xor gate
- output terminal
- anode
- signal
- electrolysis cell
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 30
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 14
- 238000005259 measurement Methods 0.000 title abstract description 15
- 230000006698 induction Effects 0.000 claims abstract description 6
- 239000004411 aluminium Substances 0.000 claims description 17
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 16
- 238000002955 isolation Methods 0.000 claims description 15
- 230000002441 reversible effect Effects 0.000 claims description 9
- 238000012545 processing Methods 0.000 abstract description 6
- 230000001915 proofreading effect Effects 0.000 abstract 1
- 238000013459 approach Methods 0.000 description 8
- 238000012937 correction Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000004304 visual acuity Effects 0.000 description 1
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model discloses an anode stroke measurement device for an aluminum electrolysis cell. The anode stroke measurement device comprises an anode lifting mechanism (1) at the upper part of the aluminum electrolysis cell. The anode stroke measurement device is characterized in that a magnetic induction orthogonal pulse generator (2) is arranged on a rotating shaft of the anode lifting mechanism (1) at the upper part of the aluminum electrolysis cell; the orthogonal pulse output end of the magnetic induction orthogonal pulse generator (2) is connected with a signal processing circuit (3) by virtue of a lead; the signal processing circuit (3) is connected with a cell controller (4) by virtue of a lead. By adopting the anode stroke measurement device for the aluminum electrolysis cell, the problems that a proximity switch of the existing pulse generator is separated from a gear plate, so that the tooth surface swings in rotation, the relative distance cannot be fixed, the anode stroke measurement device is serious in missing metering of pulse, poor in metering accuracy, larger in error as full-stroke position measurement, very frequent in artificial proofreading, large in workload, and the like, and the measurement and control requirements of the electrolysis cell at present cannot be met in the pulse generator adopting the proximity switch and the gear plate as main components to carry out anode stroke online measurement in the prior art in the anode stroke measurement of the aluminum electrolysis cell are solved.
Description
Technical field
The utility model belongs to aluminium cell anode observation and control technology field, relates in particular to a kind of aluminium cell anode stroke measuring device.
Background technology
Move in control at anode electrolytic cell lifting/lowering, require to arrange upper and lower limit bit switch on electrolyzer, to prevent kerve, indent and to destroy the serious accidents such as bus; Also need to arrange anodic pulse producer with the action of feedback anode lifting/lowering, and monitor anode movement range in manually voltage adjustment, in going out the operations such as aluminium, effect extinguish.Along with the raising of aluminium cell control level, not only require the true action of feedback anode, also want eustasy amplitude of accurate-metering lifting/lowering anode, reflect the slight change of aluminium cell state with high resolving power measurement.In prior art, the surge generator take approach switch and toothed disc as the online detection use of anode stroke of primary member, major function is the verity of reflection anode action and the height of a lifting/lowering anode.Because the approach switch of existing surge generator separates with toothed disc, when rotation, the flank of tooth waves, relative distance can not be fixed, leak meter pulse serious, counting precision is very poor, as omnidistance position measurement, error is just larger, therefore artificial check and correction is very frequent, and workload is very large, can not meet current electrolyzer TT&C requirement.
Summary of the invention
The technical problems to be solved in the utility model: a kind of aluminium cell anode stroke measuring device is provided, to solve prior art problem in aluminium cell anode stroke measurment, the existing problem of surge generator of the online detection use of anode stroke that the approach switch adopting at present and toothed disc are primary member is, because the approach switch of existing surge generator separates with toothed disc, when rotation, the flank of tooth waves, relative distance can not be fixed, exist the pulse of leakage meter serious, counting precision is very poor, larger as its error of omnidistance position measurement, artificial check and correction is very frequent, workload is large, can not meet the problems such as current electrolyzer TT&C requirement.
Technical solutions of the utility model:
A kind of aluminium cell anode stroke measuring device, it comprises aluminum electrolysis cell upper part anode lifting mechanism, magneticinduction orthogonal pulses producer is installed in the rotating shaft of aluminum electrolysis cell upper part anode lifting mechanism, the orthogonal pulses output terminal of magneticinduction orthogonal pulses producer is connected with signal treatment circuit 3 wires, and signal treatment circuit is connected with slot control machine cable.
The pulse induction wheel of described magneticinduction orthogonal pulses producer has a tooth at least.
Signal treatment circuit comprises signal isolation circuit, four XOR gate U1-1, U1-2, U1-3 and U1-4, four monostable trigger U2, U3, U4 and U5, the orthogonal pulses signal P1 that magneticinduction orthogonal pulses producer 2 sends and P2 are after signal isolation circuit, P2 accesses respectively monostable trigger U4 and U5 input terminus, and monostable trigger U4 and U5 output terminal are connected to XOR gate U1-3, and XOR gate U1-3 output terminal is connected with two subdivision and count clock signal terminals; Monostable trigger U4 output terminal is connected with a subdivision and count clock signal terminal; Orthogonal pulses signal P1 after signal isolation circuit and P2 access XOR gate U1-2, XOR gate U1-2 output terminal is connected respectively with monostable trigger U2, U3 input terminus, monostable trigger U2, U3 output terminal are connected to XOR gate U1-1, and XOR gate U1-1 output terminal is connected with four subdivision and count clock signal terminals; XOR gate U1-2 output terminal and XOR gate U1-3 output terminal access XOR gate U1-4 input terminus, XOR gate U1-4 output terminal is connected to both forward and reverse directions and rotates recognition signal end.
Described four XOR gate U1-1, U1-2, forms four XOR gate chips together with U1-3 is integrated in U1-4.
Four monostable trigger U2, U3, U4 and U5, wherein U2 and U3 integrate, and U4 and U5 integrate, and form two two monostable triggers.
The utility model beneficial effect:
The utility model is simple in structure, adopts fluted disc to add approach switch measurement by magneticinduction orthogonal pulses producer replacement prior art is installed in the rotating shaft in aluminum electrolysis cell upper part anode lifting mechanism.Magneticinduction orthogonal pulses producer stable output signal, and can not leak meter pulse, reliability is high, precision is good, by the orthogonal pulses signal of magneticinduction orthogonal pulses producer after signal treatment circuit is carried out routine isolation and filter amplifying processing, by obtaining one after a series of monostable triggerings and XOR, the recognition signal that two and four subdivision and count pulses and both forward and reverse directions rotate, the recognition signal that one of them subdivision and count pulse and both forward and reverse directions are rotated is input to counter or slot control machine counts and measure use for system, the utility model signal treatment circuit aims at the orthogonal pulses signal in orthogonal of magneticinduction orthogonal pulses producer and decodes used, this signal treatment circuit adopts common buffer circuit and four monostable triggers and four exclusive or logic gate compositions, this circuit is simple, economical, practical, performance is good, easy to implement, it is made up of common and the most few element, device cost is cheap doubly more a lot of than encoder dedicated decoders, there is good practical value.The utility model has solved prior art in aluminium cell anode stroke measurment and has adopted the existing approach switch due to existing surge generator of surge generator of the online detection use of anode stroke that approach switch is primary member with toothed disc to separate with toothed disc, when rotation, the flank of tooth waves, relative distance can not be fixed, leak meter pulse serious, counting precision is very poor, as omnidistance position measurement, error is larger, artificial check and correction is very frequent, workload is large, can not meet the problems such as current electrolyzer TT&C requirement.
accompanying drawing explanation:
Fig. 1 is the utility model one-piece construction schematic diagram;
Fig. 2 is the utility model signal treatment circuit principle schematic;
Fig. 3 is XOR quadrature decoder sequential chart of the present utility model.
embodiment:
A kind of aluminium cell anode stroke measuring device, it comprises aluminum electrolysis cell upper part anode lifting mechanism 1, magneticinduction orthogonal pulses producer 2 is installed in the rotating shaft of aluminum electrolysis cell upper part anode lifting mechanism 1, the orthogonal pulses output terminal of magneticinduction orthogonal pulses producer 2 is connected with signal treatment circuit 3 wires, and signal treatment circuit 3 is connected with slot control machine 4 wires.Except electrolyzer, generally use shielded signal transmission line can improve freedom from jamming and reliability.
According to actual needs, the pulse induction wheel of described magneticinduction orthogonal pulses producer 2 has a tooth at least, determines according to measuring accuracy, and the pulse induction wheel that the present embodiment adopts is four teeth.
The orthogonal pulses signal P1 that magneticinduction orthogonal pulses producer 2 sends and P2 are after signal isolation circuit, P2 accesses respectively monostable trigger U4 and U5 input terminus, monostable trigger U4 and U5 output terminal are connected to XOR gate U1-3, XOR gate U1-3 output terminal is connected with two subdivision and count clock signal terminals, generates two subdivision and count clocksignal PC2.
Monostable trigger U4 output terminal is connected with a subdivision and count clock signal terminal; Generate a subdivision and count clocksignal PC1.
Orthogonal pulses signal P1 after signal isolation circuit and P2 access XOR gate U1-2, XOR gate U1-2 output terminal is connected respectively with monostable trigger U2, U3 input terminus, monostable trigger U2, U3 output terminal are connected to XOR gate U1-1, XOR gate U1-1 output terminal is connected with four subdivision and count clock signal terminals, generates four subdivision and count clocksignal PC4.
XOR gate U1-2 output terminal and XOR gate U1-3 output terminal access XOR gate U1-4 input terminus, XOR gate U1-4 output terminal is connected to both forward and reverse directions and rotates recognition signal end, generates both forward and reverse directions and rotates recognition signal PUD.
In Fig. 2, the upper R5 of monostable trigger U2, U3, U4 and U5 and C5, R6 and C6, R7 and C7, R8 and C8 form the timing resistor electric capacity of each monostable trigger, and VCC provides power supply, and timing resistor and electric capacity are determined the width of output pulse.
Can draw from Fig. 3 XOR quadrature decoder of the present utility model sequential chart, in the time of forward rotation, Pc1, Pc2, Pc4 are always corresponding to the positive level of Pud; And in the time rotating backward, Pc1, Pc2, Pc4 are always corresponding to the negative level of Pud, and practice proves, and Fig. 3 sequential is carried out to Hardware or software implementation, can realize position accurately, reliably counting, the existing fluted disc of resolution add approach switch 4 ~ 16 times (1 ~ 4 teeth).
Shown in the principle schematic of signal treatment circuit shown in Fig. 2 and Fig. 3, oscillogram is on all four.Present method is without extra time clock.Simple monostable trigger and XOR compute chip and a small amount of resistance capacitance, just can complete orthogonal pulses signal P1 that magneticinduction orthogonal pulses producer 2 sends and the decoding function of P2, and the signal of the reversible counting that multiple segmentation selects is provided, i.e. output signal: Pc1, Pc2, Pc4(select one of them) and Pud; Output signal is offered to count display device, just can form an anode stroke numeral display alarm; This signal is delivered on slot control machine I/O plate, just can be utilized by slot control machine TT&C software, make anode stroke numeral and show, make spacing alarm, do the high resolution identification of groove state, pass to upper computer and carry out data processing etc.
Should be greater than Xt in order to improve reliability Yt; After while connecing just along counter, be output as/Q2 of monostable trigger U3, or reverse in outside, when the width of sub-divided pulse is less than 1/4 of the edge vibrations cycle, can suppress mechanical edge and shake the interference causing, can other anti-noise measure of dual-purpose for high-frequency electromagnetic interference, as input capacitance filtering, synchronous filtering, optically-coupled input etc.
It comprises the steps: the measuring method of aluminium cell anode stroke measuring device
Step 1, the orthogonal pulses signal P1 of magneticinduction orthogonal pulses producer 2 and P2 are carried out to filter amplifying processing by signal isolation circuit;
Step 5, orthogonal pulses signal P1 and the output signal Pyh of P2 after XOR after isolation is amplified are divided into two paths of signals and carry out respectively after XOR, obtaining train of impulses PC4 again after monostable triggering, and this pulse is as the time clock of four subdivision and count;
Step 6, train of impulses PC2 and Pyh that step 2 and step 4 are generated carry out XOR computing, and output pulse is PUD, and this pulse is the recognition signal that both forward and reverse directions rotates;
One of step 7, selection PC1, PC2 or PC4 clocksignal and pulse signal PUD combine, and can be used as the output signal of one, two or four different subdivision and count;
The output signal of the different subdivision and count that step 8, step 7 generate is directly inputted to counter or slot control machine is counted and stroke measurment processing.
Can realize or realize all fairly simple by hardware circuit with programming software according to described measuring method.
Claims (5)
1. an aluminium cell anode stroke measuring device, it comprises aluminum electrolysis cell upper part anode lifting mechanism (1), it is characterized in that: magneticinduction orthogonal pulses producer (2) is installed in the rotating shaft of aluminum electrolysis cell upper part anode lifting mechanism (1), the orthogonal pulses output terminal of magneticinduction orthogonal pulses producer (2) is connected with signal treatment circuit (3) wire, and signal treatment circuit (3) is connected with slot control machine (4) cable.
2. a kind of aluminium cell anode stroke measuring device according to claim 1, is characterized in that: the pulse induction wheel of described magneticinduction orthogonal pulses producer (2) has a tooth at least.
3. a kind of aluminium cell anode stroke measuring device according to claim 1, it is characterized in that: signal treatment circuit (3) comprises signal isolation circuit, four XOR gate U1-1, U1-2, U1-3 and U1-4, four monostable trigger U2, U3, U4 and U5, the orthogonal pulses signal P1 that magneticinduction orthogonal pulses producer (2) sends and P2 are after signal isolation circuit, P2 accesses respectively monostable trigger U4 and U5 input terminus, monostable trigger U4 and U5 output terminal are connected to XOR gate U1-3, and XOR gate U1-3 output terminal is connected with two subdivision and count clock signal terminals; Monostable trigger U4 output terminal is connected with a subdivision and count clock signal terminal; Orthogonal pulses signal P1 after signal isolation circuit and P2 access XOR gate U1-2, XOR gate U1-2 output terminal is connected respectively with monostable trigger U2, U3 input terminus, monostable trigger U2, U3 output terminal are connected to XOR gate U1-1, and XOR gate U1-1 output terminal is connected with four subdivision and count clock signal terminals; XOR gate U1-2 output terminal and XOR gate U1-3 output terminal access XOR gate U1-4 input terminus, XOR gate U1-4 output terminal is connected to both forward and reverse directions and rotates recognition signal end.
4. a kind of aluminium cell anode stroke measuring device according to claim 3, is characterized in that: described four XOR gate U1-1, U1-2, forms four XOR gate chips together with U1-3 is integrated in U1-4.
5. a kind of aluminium cell anode stroke measuring device according to claim 3, is characterized in that: four monostable trigger U2, U3, U4 and U5, and wherein U2 and U3 integrate, and U4 and U5 integrate, and form two two monostable triggers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320866951.8U CN203625494U (en) | 2013-12-26 | 2013-12-26 | Anode stroke measurement device for aluminum electrolysis cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320866951.8U CN203625494U (en) | 2013-12-26 | 2013-12-26 | Anode stroke measurement device for aluminum electrolysis cell |
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| Publication Number | Publication Date |
|---|---|
| CN203625494U true CN203625494U (en) | 2014-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320866951.8U Expired - Lifetime CN203625494U (en) | 2013-12-26 | 2013-12-26 | Anode stroke measurement device for aluminum electrolysis cell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104746101A (en) * | 2013-12-26 | 2015-07-01 | 贵阳铝镁设计研究院有限公司 | Anode stroke measuring device and method of aluminum electrolysis cell |
-
2013
- 2013-12-26 CN CN201320866951.8U patent/CN203625494U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104746101A (en) * | 2013-12-26 | 2015-07-01 | 贵阳铝镁设计研究院有限公司 | Anode stroke measuring device and method of aluminum electrolysis cell |
| CN104746101B (en) * | 2013-12-26 | 2017-07-11 | 贵阳铝镁设计研究院有限公司 | A kind of aluminium cell anode stroke measuring device and its measuring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160505 Address after: Jin Zhu Xi Lu Lake District 550000 Guizhou city of Guiyang province No. 2 aluminum technology building Patentee after: GUIZHOU INNOVATIVE LIGHT METAL PROCESS EQUIPMENT ENGINEERING TECHNOLOGY RESEARCH CENTER CO.,LTD. Address before: 550081 Guizhou Province, Guiyang City Lake District Jinyang Road No. 469 Patentee before: Guiyang Aluminum Magnesium Design & Research Institute Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20140604 |
|
| CX01 | Expiry of patent term |