GB1221578A - Apparatus for measuring the current at the individual electrodes of electrolytic cells - Google Patents
Apparatus for measuring the current at the individual electrodes of electrolytic cellsInfo
- Publication number
- GB1221578A GB1221578A GB4436268A GB4436268A GB1221578A GB 1221578 A GB1221578 A GB 1221578A GB 4436268 A GB4436268 A GB 4436268A GB 4436268 A GB4436268 A GB 4436268A GB 1221578 A GB1221578 A GB 1221578A
- Authority
- GB
- United Kingdom
- Prior art keywords
- current
- electrode
- potentiometer
- voltage
- resistor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
- G01R1/203—Resistors used for electric measuring, e.g. decade resistors standards, resistors for comparators, series resistors, shunts
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
- C25B15/02—Process control or regulation
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
- C25B15/04—Regulation of the inter-electrode distance
-
- 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
- C25C3/20—Automatic control or regulation of cells
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/06—Operating or servicing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/04—Voltage dividers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
1,221,578. Current measurement. KNAPSACK A.G. Sept. 18, 1968 [Sept. 22, 1967], No. 44362/68. Addition to 1,144, 282. Heading G1U. [Also in Division G3] In a system for determining the currents passing through the individual electrodes of an electrolytic cell, so as to determine whether these electrodes need to be adjusted, voltages across resistors 1, 2, 3 in series with respective electrodes, are applied cyclically, by operating a selective switching mechanism incorporating switches 8, 9, 10 in series with the output leads from the resistors, under the control of a timed impulse generator 7, to a compensation system in which the voltage from a selected resistor is compared with a reference voltage corresponding with the mean electrode current. The difference voltage represents the deviation in the current in the selected resistance from the mean electrode current and is passed to a limit monitor. This monitor generates an output if the voltage difference is outside a predetermined tolerance range, the output being on one lead if the difference is positive and on another if it is negative. The compensation system has an input potentiometer 15, which is adjusted in accordance with the average current flowing through each electrode of the whole cell, so that if the average current is flowing in the particular electrode under test, balance between the test and reference voltages will be achieved and no fault indication given. The total cell current is measured as a voltage across a resistor 21 through which it flows, by a potentiometric method in which the wiper of a potentiometer 25 is automatically adjusted to represent the current, the wiper of this potentiometer being mechanically coupled to that of the potentiometer 15. Each detector resistor in the individual electrode leads has a potentiometer 4, 5, 6 &c. in parallel with it, this being adjusted so that when the mean current flows through the resistor, the correct output voltage is obtained (corrected for resistance variation &c. The indicator system incorporates a pair of differently coloured lamps for each electrode, one being illuminated when the current is below the permissible tolerance range, the other when it is above. The signals from the limit monitormay in addition be applied to a computer which effects automatic adjustment of the electrodes. Furthermore the system may be used to test cyclically the potential drop across transistion resistances in the electrode leads, due to soldered on mechanical joints &c. the values determined being used to achieve accurate correction of the electrode currents.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK0057638 | 1965-11-11 | ||
DEK0063413 | 1967-09-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1221578A true GB1221578A (en) | 1971-02-03 |
Family
ID=7231096
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4436268A Expired GB1221578A (en) | 1965-11-11 | 1968-09-18 | Apparatus for measuring the current at the individual electrodes of electrolytic cells |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE721036A (en) |
DE (1) | DE1671439A1 (en) |
FR (1) | FR95793E (en) |
GB (1) | GB1221578A (en) |
NL (1) | NL6813147A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0068076A2 (en) * | 1981-06-19 | 1983-01-05 | Heraeus Elektroden GmbH | Monitoring and control device for chloroalcali electrolytic cells with mercury cathode |
CN102409362A (en) * | 2011-12-26 | 2012-04-11 | 贵阳铝镁设计研究院有限公司 | Aluminium electrolysis cell through-current body hot-line welding control system |
GB2507972A (en) * | 2012-11-14 | 2014-05-21 | Przemyslaw Zaprzalski | Adaptive Industrial Apparatus and Process for the Electrolytic Deposition of Copper |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE757614A (en) * | 1969-10-16 | 1971-04-16 | Montedison Spa | PROCESS AND DEVICE PROVIDING PROTECTION AGAINST SHORT CIRCUITS IN ELECTROLYTIC CELLS |
CA1024598A (en) * | 1974-10-15 | 1978-01-17 | Eugene C. Varrasso | Method of and apparatus for monitoring for incipient electrode failure in the joule effect heating of heat softenable material |
GB1587563A (en) * | 1976-07-06 | 1981-04-08 | Owens Corning Fiberglass Corp | Method of and apparatus for monitoring for electrode displacement in the joule effect heating of heat softenable material |
CN111263895B (en) * | 2017-10-23 | 2022-02-22 | 阿尔卑斯阿尔派株式会社 | Abnormality detection device and abnormality detection method |
-
1967
- 1967-09-22 DE DE19671671439 patent/DE1671439A1/en active Pending
-
1968
- 1968-09-13 NL NL6813147A patent/NL6813147A/xx not_active Application Discontinuation
- 1968-09-18 FR FR166630A patent/FR95793E/en not_active Expired
- 1968-09-18 BE BE721036D patent/BE721036A/xx unknown
- 1968-09-18 GB GB4436268A patent/GB1221578A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0068076A2 (en) * | 1981-06-19 | 1983-01-05 | Heraeus Elektroden GmbH | Monitoring and control device for chloroalcali electrolytic cells with mercury cathode |
EP0068076A3 (en) * | 1981-06-19 | 1983-03-23 | Heraeus Elektroden Gmbh | Monitoring and control device for chloroalcali electrolytic cells with mercury cathode |
CN102409362A (en) * | 2011-12-26 | 2012-04-11 | 贵阳铝镁设计研究院有限公司 | Aluminium electrolysis cell through-current body hot-line welding control system |
CN102409362B (en) * | 2011-12-26 | 2015-11-18 | 贵阳铝镁设计研究院有限公司 | Aluminium cell is through-flow body do not have a power failure welding control system |
GB2507972A (en) * | 2012-11-14 | 2014-05-21 | Przemyslaw Zaprzalski | Adaptive Industrial Apparatus and Process for the Electrolytic Deposition of Copper |
WO2014076169A1 (en) * | 2012-11-14 | 2014-05-22 | Przemyslaw Zaprzalski | Adaptive industrial apparatus and process for the electrolytic deposition of copper |
Also Published As
Publication number | Publication date |
---|---|
BE721036A (en) | 1969-03-18 |
NL6813147A (en) | 1969-03-25 |
FR95793E (en) | 1971-06-25 |
DE1671439A1 (en) | 1971-09-30 |
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