MX9707408A - Sistema de enfriamiento para catodos en hornos de arco electrico de corriente directa. - Google Patents

Sistema de enfriamiento para catodos en hornos de arco electrico de corriente directa.

Info

Publication number
MX9707408A
MX9707408A MX9707408A MX9707408A MX9707408A MX 9707408 A MX9707408 A MX 9707408A MX 9707408 A MX9707408 A MX 9707408A MX 9707408 A MX9707408 A MX 9707408A MX 9707408 A MX9707408 A MX 9707408A
Authority
MX
Mexico
Prior art keywords
area
canal
condensation
electric arc
metallic part
Prior art date
Application number
MX9707408A
Other languages
English (en)
Other versions
MXPA97007408A (es
Inventor
Alfredo Poloni
Gianni Gensini
Milorad Pavlicevic
Nuredin Kapaj
Original Assignee
Danieli Off Mecc
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 Danieli Off Mecc filed Critical Danieli Off Mecc
Publication of MX9707408A publication Critical patent/MX9707408A/es
Publication of MXPA97007408A publication Critical patent/MXPA97007408A/es

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/24—Cooling arrangements
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5229—Manufacture of steel in electric furnaces in a direct current [DC] electric arc furnace
    • 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
    • H05B7/12—Arrangements for cooling, sealing or protecting electrodes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Furnace Details (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Discharge Heating (AREA)

Abstract

Un sistema de enfriamiento para cátodos, o electrodos (11) en hornos de arco eléctrico de corriente directa, comprendiendo los cátodos (11) una parte de grafito consumible inferior (11a), desde donde se hace la chispa del arco eléctrico, asociada en la parte superior con una parte metálica hueca (11b) por medio de una junta (13), incluyéndose adentro de la parte metálica (11b) un circuito de enfriamiento cerrado (19) con agua u otro fluido de enfriamiento cerrado (19) con agua u otro fluido de enfriamiento similar, que define un área de evaporacion 17 configurada sustancialmente en cooperacion con el extremo inferior de la parte metálica (11b), y un área de condensacion (18) configurada en cooperacion con un área superior deseada de la parte metálica (11b), cooperando el área de condensacion (18) con un intercambiador de calor (15) asociado con la pared externa de parte metálica (11b), incluyéndose también un canal ascendente (14) para el vapor (19a) desde el área de evaporacion (17) hasta el área de condensacion (18), y cuando menos un canal descendente (16), por el cual desciende la condensacion, bajo la fuerza de la gravedad, desde el área de condensacion (18) hasta el área de evaporacion (17), comunicándose el canal descendente (14) y el canal ascendente (16) uno con el otro en correspondencia con el área de evaporacion (17) y elárea de condensacion (18), correspondiendo el canal descendente (16) con la pared interna de la parte metálica (11b), y que tiene una seccion inferior a la seccion del canal ascendente (14).
MXPA/A/1997/007408A 1996-09-27 1997-09-26 Sistema de enfriamiento para catodos en hornos de arco electrico de corriente directa MXPA97007408A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
UDUD96A000183 1996-09-27
ITUD960183 1996-09-27

Publications (2)

Publication Number Publication Date
MX9707408A true MX9707408A (es) 1998-06-28
MXPA97007408A MXPA97007408A (es) 1998-10-30

Family

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Also Published As

Publication number Publication date
ZA978426B (en) 1998-03-26
IT1288992B1 (it) 1998-09-25
ITUD960183A1 (it) 1998-03-27
EP0838531A1 (en) 1998-04-29
BR9702931A (pt) 1999-01-19
US5933445A (en) 1999-08-03
CA2216458A1 (en) 1998-03-27
KR19980024986A (ko) 1998-07-06
AU718149B2 (en) 2000-04-06
AU3836897A (en) 1998-04-02

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Legal Events

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FA Abandonment or withdrawal