EP0068076A2 - Dispositif de surveillance et de commande pour cellules d'électrolyse chlore-acali à cathode de mercure - Google Patents

Dispositif de surveillance et de commande pour cellules d'électrolyse chlore-acali à cathode de mercure Download PDF

Info

Publication number
EP0068076A2
EP0068076A2 EP82102107A EP82102107A EP0068076A2 EP 0068076 A2 EP0068076 A2 EP 0068076A2 EP 82102107 A EP82102107 A EP 82102107A EP 82102107 A EP82102107 A EP 82102107A EP 0068076 A2 EP0068076 A2 EP 0068076A2
Authority
EP
European Patent Office
Prior art keywords
monitoring
measured
control device
overcurrent
cell
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.)
Granted
Application number
EP82102107A
Other languages
German (de)
English (en)
Other versions
EP0068076A3 (en
EP0068076B1 (fr
Inventor
Peter Fabian
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
De Nora Deutschland GmbH
Original Assignee
Heraeus Elektroden GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6134924&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0068076(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Heraeus Elektroden GmbH filed Critical Heraeus Elektroden GmbH
Priority to AT82102107T priority Critical patent/ATE23579T1/de
Publication of EP0068076A2 publication Critical patent/EP0068076A2/fr
Publication of EP0068076A3 publication Critical patent/EP0068076A3/de
Application granted granted Critical
Publication of EP0068076B1 publication Critical patent/EP0068076B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • 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

Definitions

  • Amalgam process is heavily burdened by labor costs and energy g y p g reisstei chan g es and not least by high requirements of environmental protection and should therefore be further optimized.
  • DSA anodes in conjunction with the monitoring and control device described below can be regarded as an ideal combination.
  • the monitoring and control device consciously dispenses with fully automatic monitoring and control carried out by a central computer.
  • the monitoring and control system is intended to enable the cell personnel to operate the electrolysis cells with the lowest possible cell voltage with a high current yield, low damage rate at DSA anodes and without a great deal of work.
  • DSA dimensionally stable anodes
  • the monitoring and control device is housed in an insulating material housing and is used to monitor and control a single electrolysis cell.
  • the electronics are housed in the upper part of the housing.
  • the housing is closed by a transparent cover.
  • the signal and control elements are located in the lower part of the cover.
  • input plug-in cards are accommodated in the plug-in card slots.
  • Each plug-in card has space for two input channels, which are potentially separated from the mains as well as from the outputs.
  • a highly reliable input amplifier with low drift values amplifies the input signal from the supply rails in the order of 5 - 6 mV to a thousand times the value. This voltage is converted into a proportional frequency via an analog-digital conversion, which is fed to a digital-analog converter via an optocoupler.
  • the overall ratio is 1: 1. This measure ensures the necessary electrical isolation between the input circuits and the processing circuit.
  • Each input plug-in card has two power supplies, so that each input channel is supplied independently and electrically separately from the other. This is to be understood as a precautionary measure, because all measuring points within a cell cannot have more than 4 - 5 V voltage difference.
  • the choice of an optocoupler as a transmission element avoids the magnetic influence that can be influenced by external fields, as occurs in electrolysis systems.
  • the AC voltage coupling has the advantage that the optocoupler can be easily monitored. Even in the event that the optocoupler continuously switches through or interrupts, this fault is immediately displayed on the plug-in card by zero voltage monitoring.
  • Each input plug-in card has a defelct display for each channel.
  • All outputs are added in a further plug-in card and averaged so that the output signal corresponds to the arithmetic mean of the input signals.
  • This mean value amplifier can be set to the number of outputs using a switch on the plug-in card.
  • the corresponding input signals from the supply rails are compared with the mean value according to the number of group adjustment units above the electrolysis cell, and the result is fed to an evaluation circuit.
  • the evaluation circuit compares the individual value with the mean value. If an adjustable percentage tolerance limit above the mean value is exceeded, the device controls the motors of the respective group adjustment unit. The motors raise the anode adjustment device by an adjustable distance. This process is repeated automatically in the event that the overcurrent has not yet been eliminated after an adjustable pause time until the current consumption of the supply rail is within the tolerated size.
  • This process also triggers an optical and acoustic alarm signal.
  • the response of the monitoring circuit is stored until the optical signal is manually deleted.
  • a suitable connection to the cathode of the cell is also routed through an isolation amplifier and displayed on a digital instrument. This means that the operating voltage of the cell can be read on the device at any time.
  • the voltage supply for the contactor control which is secured by special locking circuits with the operating loads even in the event of failure of electronic switching elements such as transistors or the like, is combined with the isolating amplifier of the cell operating voltage on a common plug-in card.
  • the contactors are encapsulated in sheet steel housings.
  • the cell voltage and the average target current consumption of the individual supply rails can be read on the digital displays.
  • the actual current consumption of the individual supply rails can now be queried on the device.
  • the inclination of the frame can now be changed in manual operation by controlling the servomotors on the anode holding frame, so that the current distribution is corrected over the length of the frame. If this measure is not sufficient, the current consumption of the individual power supplies must be checked using a current clamp and adjusted individually.
  • the anode frames can each be lowered overall in adjustable steps by means of buttons on the device and the cell can thus be brought to operating voltage.
  • the device automatically blocks during the set pause times and thus prevents the anodes from dropping too quickly.
  • the device monitors the current consumption of the individual supply rails and blocks when the set maximum percentage deviation from the arithmetic mean value of the total current consumption is reached, so that the anodes cannot run the risk of a short circuit.
  • the electrolytic cell has a cell trough 6 and a cell cover 9. On the cell cover 9 supports 14 are attached, which carry a frame 11 which serves to adjust the anodes 8.
  • the flowing mercury cathode in the cell trough 6 is designated by 7. Otherwise, the cell structure is known per se.
  • the monitoring and control device 1 is connected to the supply rail 4 by a measuring line 2, via a shunt tap or measuring section 2 '.
  • the feeder rail or busbar 4 is electrically conductively but flexibly connected to the individual anodes 8 by a current supply band 5.
  • the anodes 8 are known per se, e.g. B. arranged in a sleeve power supply bolts, which in turn are provided with adjusting screws 10 for individual adjustment relative to the frame 11.
  • a lifting gear is designated, which is driven by an electric gear motor 13, for. B. on the illustrated horizontal shaft, so d ate in the manner of a bevel gear drive, the support frame 11 for the anodes 8 overall on the columns 14 is movable up and down, as indicated by arrows.
  • the lines and the fastening elements for the lines to the anodes are advantageously made from the same material as the current rails. Temperature compensation elements are also provided in order to compensate for temperature differences in the individual supply rails.
  • the measuring part can also be designed as a single device, so that a cell that has no motorized adjustment can be readjusted manually.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
EP82102107A 1981-06-19 1982-03-16 Dispositif de surveillance et de commande pour cellules d'électrolyse chlore-acali à cathode de mercure Expired EP0068076B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82102107T ATE23579T1 (de) 1981-06-19 1982-03-16 Ueberwachungs- und steuerungseinrichtung fuer chloralkalielektrolysezellen mit quecksilberkathode.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3124108 1981-06-19
DE3124108A DE3124108C2 (de) 1981-06-19 1981-06-19 Überwachungs- und Steuerungseinrichtung für Elektrolysezellen mit Quecksilberkathoden

Publications (3)

Publication Number Publication Date
EP0068076A2 true EP0068076A2 (fr) 1983-01-05
EP0068076A3 EP0068076A3 (en) 1983-03-23
EP0068076B1 EP0068076B1 (fr) 1986-11-12

Family

ID=6134924

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82102107A Expired EP0068076B1 (fr) 1981-06-19 1982-03-16 Dispositif de surveillance et de commande pour cellules d'électrolyse chlore-acali à cathode de mercure

Country Status (6)

Country Link
US (1) US4448660A (fr)
EP (1) EP0068076B1 (fr)
AT (1) ATE23579T1 (fr)
CA (1) CA1189825A (fr)
DE (2) DE3124108C2 (fr)
MX (1) MX151556A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0099795B1 (fr) * 1982-07-07 1986-12-30 Giusti, Max Dispositif de contrôle et de visualisation de la répartition du courant dans un électrolyseur
KR100865294B1 (ko) 2007-05-16 2008-10-27 삼성전기주식회사 수소 발생 장치 및 연료전지 발전 시스템

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8521128D0 (en) * 1985-08-23 1985-10-02 Alcan Int Ltd Controlling anode movement in aluminium cell
DE3908087A1 (de) * 1989-03-13 1990-09-20 Vaw Ver Aluminium Werke Ag Verfahren und vorrichtung zur nachregulierung des polabstandes zum ausgleich des anodenabbrandes bei elektrolysezellen
US5785826A (en) * 1996-12-26 1998-07-28 Digital Matrix Apparatus for electroforming
US5843296A (en) * 1996-12-26 1998-12-01 Digital Matrix Method for electroforming an optical disk stamper
US20040055873A1 (en) * 2002-09-24 2004-03-25 Digital Matrix Corporation Apparatus and method for improved electroforming
BR112015000194B1 (pt) 2012-08-17 2021-05-18 Alcoa Usa Corp célula eletrolítica de ânodo inerte e método de monitoraruma célula eletrolítica

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1221578A (en) * 1965-11-11 1971-02-03 Knapsack Ag Apparatus for measuring the current at the individual electrodes of electrolytic cells
DE2422582A1 (de) * 1973-05-10 1974-11-28 Olin Corp Verfahren und vorrichtung zum einstellen des anoden-kathoden-abstandes in einer elektrolysezelle zur vermeidung von stromueber- oder stromunterbelastungen
DE2432691A1 (de) * 1973-07-10 1975-01-30 Ppg Industries Inc Verfahren zum auffinden von kurzschluessen in quecksilberzellen und zum abgleichen der stromstaerken
US4035268A (en) * 1973-09-17 1977-07-12 Produits Chimiques Ugine Kuhlmann Process for the control of mercury cathode electrolysis cells

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3476660A (en) * 1966-03-23 1969-11-04 Ici Ltd Method of sequentially adjusting the anodes in a mercury-cathode cell
US4098666A (en) * 1974-07-18 1978-07-04 Olin Corporation Apparatus for regulating anode-cathode spacing in an electrolytic cell
US4004989A (en) * 1974-04-18 1977-01-25 Olin Corporation Method for automatic adjustment of anodes based upon current density and current
US4098639A (en) * 1975-06-17 1978-07-04 Mo Och Domsjo Aktiebolag Process for reducing the requirement of fresh chemicals without increasing emissions in the pulping of cellulosic material
DE2729732B2 (de) * 1977-07-01 1980-06-26 Hoechst Ag, 6000 Frankfurt Vorrichtung zum Regeln, Überwachen, Optimieren, Bedienen von und zur Informationsdarstellung in Chloralkalielektrolyseanlagen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1221578A (en) * 1965-11-11 1971-02-03 Knapsack Ag Apparatus for measuring the current at the individual electrodes of electrolytic cells
DE2422582A1 (de) * 1973-05-10 1974-11-28 Olin Corp Verfahren und vorrichtung zum einstellen des anoden-kathoden-abstandes in einer elektrolysezelle zur vermeidung von stromueber- oder stromunterbelastungen
FR2228541A1 (fr) * 1973-05-10 1974-12-06 Olin Corp
DE2432691A1 (de) * 1973-07-10 1975-01-30 Ppg Industries Inc Verfahren zum auffinden von kurzschluessen in quecksilberzellen und zum abgleichen der stromstaerken
FR2236969A1 (fr) * 1973-07-10 1975-02-07 Ppg Industries Inc
US4035268A (en) * 1973-09-17 1977-07-12 Produits Chimiques Ugine Kuhlmann Process for the control of mercury cathode electrolysis cells

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0099795B1 (fr) * 1982-07-07 1986-12-30 Giusti, Max Dispositif de contrôle et de visualisation de la répartition du courant dans un électrolyseur
KR100865294B1 (ko) 2007-05-16 2008-10-27 삼성전기주식회사 수소 발생 장치 및 연료전지 발전 시스템

Also Published As

Publication number Publication date
EP0068076A3 (en) 1983-03-23
ATE23579T1 (de) 1986-11-15
DE3124108A1 (de) 1983-01-13
DE3124108C2 (de) 1986-01-09
CA1189825A (fr) 1985-07-02
MX151556A (es) 1984-12-13
EP0068076B1 (fr) 1986-11-12
DE3274265D1 (en) 1987-01-02
US4448660A (en) 1984-05-15

Similar Documents

Publication Publication Date Title
EP0199936B1 (fr) Procédé et dispositif pour la régulation de fours à arcs
EP0068076B1 (fr) Dispositif de surveillance et de commande pour cellules d'électrolyse chlore-acali à cathode de mercure
DE1763702A1 (de) Schaltanordnung zur Meldung und automatischen Beseitigung von Kurzschluessen an Elektrolysezellen
DE1546710B2 (de) Anordnung zur bestimmung der die elektroden von elektrolysezellen durchfliessenden stromstaerke
EP3440976B1 (fr) Appareil électroménager entraîné par un accumulateur ainsi que procédé de fonctionnement d'un appareil électroménager
EP3982501A1 (fr) Fonctionnement d'un dispositif d'électrolyse
DE2432691A1 (de) Verfahren zum auffinden von kurzschluessen in quecksilberzellen und zum abgleichen der stromstaerken
DE3803713C2 (de) Computer-Ein-Ausgabe-Schaltungsanordnung
DE8117920U1 (de) Vorrichtung zur Überwachung und Steuerung des Stromdurchflusses in Elektroden(-gruppen) von Chloralkalielektrolysezellen mit Quecksilberkathode
DE2336382A1 (de) Verfahren und vorrichtung zum einstellen des anoden-kathoden-abstandes in einer elektrolysezelle
DE2729732A1 (de) Vorrichtung zum regeln, ueberwachen, optimieren, bedienen von und zur informationsdarstellung in chloralkalielektrolyseanlagen
DE1798301B2 (de) Kraft-Dehnungs-Wandler zur Überwachung von Belastungskräften an einer Maschine, insbesondere einer Presse
DE1807336B2 (de) Regelschaltung fuer den elektrodenabstand in elektrolyse wannen
DE2421126C2 (de) Schaltungseinrichtung zur gegenseitigen Wirk- und Blindleistungssteuerung mehrerer parallelbetriebener Wechselrichter
DE2127455B2 (de) Anordnung zur anlaufstrombegrenzung von asynchron anlaufenden elektrischen maschinen
EP2020751A2 (fr) Circuit d'excitation pour un convertisseur de courant avec circuit intermédiaire
EP2823069B1 (fr) Procédé de fonctionnement d'un four à arc et installation de fusion dotée d'un four à arc fonctionnant selon ce procédé
DE2637232A1 (de) Vorrichtung zum einstellen des abstandes zwischen den elektroden einer elektrolytischen zelle
DE2756827A1 (de) Verfahren zur bestimmung der temperaturverteilung in glasbaedern
EP1911329A1 (fr) Systeme de transformateur pour fours a arc electriques a trois electrodes
DE892928C (de) Regeleinrichtung, bei der ein Regler durch zwei oder mehr elektrische Messwerke gemeinsam oder durch ein Messwerk mit mehreren in entgegen-gesetztem Sinn wirkenden Wicklungen gesteuert wird (Verhaeltnisregler)
EP4306970A1 (fr) Dispositif et procédé d'inspection et/ou de surveillance d'un courant monophasé
DE968892C (de) Gleichspannungs- oder Gleichstromverstaerkeranordnung fuer Messzwecke
DE822275C (de) Verfahren und Vorrichtungen zur Regelung oder Anzeige der Stromverteilung auf die Elektroden einer Elektrolysezelle
DE2454014A1 (de) Verfahren und vorrichtung zur regelung und kontrolle des anodenstromes und zur vermeidung von kurzschluessen zwischen den elektroden einer elektrolysezelle

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19820325

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

TCNL Nl: translation of patent claims filed
AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

EL Fr: translation of claims filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 23579

Country of ref document: AT

Date of ref document: 19861115

Kind code of ref document: T

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19861130

ET Fr: translation filed
REF Corresponds to:

Ref document number: 3274265

Country of ref document: DE

Date of ref document: 19870102

ITF It: translation for a ep patent filed

Owner name: SOCIETA' ITALIANA BREVETTI S.P.A.

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19870316

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19870331

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: HOECHST AKTIENGESELLSCHAFT, FRANKFURT

Effective date: 19870714

NLR1 Nl: opposition has been filed with the epo

Opponent name: HOECHST AKTIENGESELLSCHAFT

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 19881009

NLR2 Nl: decision of opposition
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19940310

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19940318

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19940325

Year of fee payment: 13

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19940331

Year of fee payment: 13

Ref country code: FR

Payment date: 19940331

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19940413

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19950316

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19950331

Ref country code: CH

Effective date: 19950331

Ref country code: BE

Effective date: 19950331

BERE Be: lapsed

Owner name: HERAEUS ELEKTRODEN G.M.B.H.

Effective date: 19950331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19951001

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19950316

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19951130

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19951001

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19951201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST