EP0372236A3 - Electrothermal reduction furnace - Google Patents

Electrothermal reduction furnace Download PDF

Info

Publication number
EP0372236A3
EP0372236A3 EP19890120536 EP89120536A EP0372236A3 EP 0372236 A3 EP0372236 A3 EP 0372236A3 EP 19890120536 EP19890120536 EP 19890120536 EP 89120536 A EP89120536 A EP 89120536A EP 0372236 A3 EP0372236 A3 EP 0372236A3
Authority
EP
European Patent Office
Prior art keywords
electrodes
central tube
concrete ceiling
several
reduction furnace
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
EP19890120536
Other languages
German (de)
French (fr)
Other versions
EP0372236A2 (en
EP0372236B1 (en
Inventor
Joachim Dr. Stendel
Georg Baumann
Karl Horn
Dieter Mandelkow
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.)
Hoechst AG
Original Assignee
Hoechst AG
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
Application filed by Hoechst AG filed Critical Hoechst AG
Publication of EP0372236A2 publication Critical patent/EP0372236A2/en
Publication of EP0372236A3 publication Critical patent/EP0372236A3/en
Application granted granted Critical
Publication of EP0372236B1 publication Critical patent/EP0372236B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B7/00—Heating by electric discharge
    • H05B7/02—Details
    • H05B7/06—Electrodes
    • H05B7/08—Electrodes non-consumable
    • H05B7/085—Electrodes non-consumable mainly consisting of carbon
    • H05B7/09—Self-baking electrodes, e.g. Söderberg type electrodes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D11/00—Arrangement of elements for electric heating in or on furnaces
    • F27D11/02—Ohmic resistance heating
    • F27D11/04—Ohmic resistance heating with direct passage of current through the material being heated

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Electrolytic Production Of Metals (AREA)

Abstract

Ein elektrothermischer Reduktionsofen zur Herstellung von gelbem Phosphor aus einer aus Rohphosphat, Kies und Koks zusammengesetzten Möllermischung besteht aus einem mit einer armierten Betondecke (6) verschlossenen Ofengefäß (1). Dabei ist die Betondecke (6) von mehreren Möllerbe­ schickungsrohren (7) und von mehreren SÖDERBERG-Elektroden (8) durchdrungen. Die Elektroden (8) sind im Bereich ihrer Durchdringung der Betondecke (6) von Stromzuführungsplat­ ten (10) aufweisenden Tieffassungen (9) umgriffen. Die Elektroden (8) sind Hohlelektroden, bei denen mittig im Eisenblechmantel (11) ein Zentralrohr (12) angeordnet ist. Auf dem Zentralrohr (12) sind Blechscheiben (13) mit Ab­ stand voneinander aufgezogen. Weiterhin ist das Zentralrohr (12) mit über den Umfang verteilten Distanzstäben (14) im Eisenblechmantel (11) zentriert. An electrothermal reduction furnace for the production of yellow phosphorus from one of raw phosphate, gravel and coke composite mixture of furniture consists of a with a reinforced concrete ceiling (6) closed furnace vessel (1). The concrete ceiling (6) is from several Möller heritage tubes (7) and several SÖDERBERG electrodes (8) permeated. The electrodes (8) are in their area Penetration of the concrete ceiling (6) from the power supply plate ten (10) having deep sockets (9). The Electrodes (8) are hollow electrodes, in the middle of which Iron sheet jacket (11) is arranged a central tube (12). On the central tube (12) are sheet metal disks (13) with Ab stood raised from each other. Furthermore, the central tube (12) with spacer bars (14) distributed over the circumference Iron sheet jacket (11) centered.

EP19890120536 1988-12-03 1989-11-06 Electrothermal reduction furnace. Expired - Lifetime EP0372236B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3840827 1988-12-03
DE19883840827 DE3840827A1 (en) 1988-12-03 1988-12-03 ELECTROTHERMIC REDUCTION STOVES

Publications (3)

Publication Number Publication Date
EP0372236A2 EP0372236A2 (en) 1990-06-13
EP0372236A3 true EP0372236A3 (en) 1991-01-16
EP0372236B1 EP0372236B1 (en) 1993-10-27

Family

ID=6368431

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890120536 Expired - Lifetime EP0372236B1 (en) 1988-12-03 1989-11-06 Electrothermal reduction furnace.

Country Status (3)

Country Link
EP (1) EP0372236B1 (en)
CN (1) CN1017085B (en)
DE (1) DE3840827A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2204425A1 (en) * 1997-05-02 1998-11-02 Skw Canada Inc. Electrode for silicon alloys and silicon metal
BR9809347B1 (en) * 1997-05-02 2011-11-16 self-sintering sinterberg type electrode to produce silicon alloys and silicon metal and process to form it in situ in an electric arc furnace.
FR2770079B1 (en) * 1997-10-22 2000-01-28 Action Finances Ind COMPOSITE ELECTRODE OF METALLURGY OVEN
AU5382699A (en) * 1998-08-25 2000-03-14 Pyromet (Proprietary) Limited Soderberg-type composite electrode for arc smelting furnace
CN101886172A (en) * 2010-06-19 2010-11-17 鹤壁银龙有色金属科技有限公司 Tank-free vertical electric heating smelting calcium metal reduction furnace
CN103466572B (en) * 2013-08-29 2014-12-24 昆明会丰工贸有限责任公司 Roof spraying construction technology of small yellow phosphorus flat-roof furnace lid and formulae

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE529118C (en) * 1925-06-06 1931-07-10 Josias Rees Metal-reinforced continuous carbon electrode for electric ovens
US3524004A (en) * 1968-12-03 1970-08-11 Ohio Ferro Alloys Corp Non-metal reinforced self-baking electrode for electric furnaces
US4133968A (en) * 1977-05-26 1979-01-09 Frolov Jury F Apparatus for forming self-sintering electrodes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE529118C (en) * 1925-06-06 1931-07-10 Josias Rees Metal-reinforced continuous carbon electrode for electric ovens
US3524004A (en) * 1968-12-03 1970-08-11 Ohio Ferro Alloys Corp Non-metal reinforced self-baking electrode for electric furnaces
US4133968A (en) * 1977-05-26 1979-01-09 Frolov Jury F Apparatus for forming self-sintering electrodes

Also Published As

Publication number Publication date
EP0372236A2 (en) 1990-06-13
CN1043557A (en) 1990-07-04
EP0372236B1 (en) 1993-10-27
CN1017085B (en) 1992-06-17
DE3840827A1 (en) 1990-06-07

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