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FR2420573A1 - Forehearth connection to cupola furnace - includes syphon preventing slag entry into forehearth - Google Patents

Forehearth connection to cupola furnace - includes syphon preventing slag entry into forehearth

Info

Publication number
FR2420573A1
FR2420573A1 FR7807986A FR7807986A FR2420573A1 FR 2420573 A1 FR2420573 A1 FR 2420573A1 FR 7807986 A FR7807986 A FR 7807986A FR 7807986 A FR7807986 A FR 7807986A FR 2420573 A1 FR2420573 A1 FR 2420573A1
Authority
FR
France
Prior art keywords
syphon
cupola
hearth
slag
forehearth
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
FR7807986A
Other languages
French (fr)
Other versions
FR2420573B1 (en
Inventor
Louis Chaze
Rene Sanz
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.)
TECH IND FONDERIE CENTRE
Original Assignee
TECH IND FONDERIE CENTRE
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 TECH IND FONDERIE CENTRE filed Critical TECH IND FONDERIE CENTRE
Priority to FR7807986A priority Critical patent/FR2420573A1/en
Publication of FR2420573A1 publication Critical patent/FR2420573A1/en
Application granted granted Critical
Publication of FR2420573B1 publication Critical patent/FR2420573B1/fr
Granted legal-status Critical Current

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
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B1/21—Arrangements of devices for discharging
    • 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
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Abstract

The cupola and has a fore-hearth is permanently connected to the cupola and has a taphole at its bottom. The fore-hear the can be sealed, and is provided with an injection device and a, gas pipe which is connected to the cupola aboe the maximum slag level. The improvements are: (a) for automatic peiodic tapping of the slag, the cupola, hearth has a syphon and an external weir; and (b) the fore-hearth is connected to the cupola hearth, for tapping of the melt, by a syphon which extends from a cupola opening, which is below the opening for the slag syphon, to a fore-hearth opening which is below the slag weir. The desing ensures tht slag cannot enter the fore-hearth, that the melt level is constant in the cupola hearth, the slag syphon and the molten metal syphon and that the slag level is constant in the cupola hearth and the slag syphon.
FR7807986A 1978-03-20 1978-03-20 Forehearth connection to cupola furnace - includes syphon preventing slag entry into forehearth Granted FR2420573A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7807986A FR2420573A1 (en) 1978-03-20 1978-03-20 Forehearth connection to cupola furnace - includes syphon preventing slag entry into forehearth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7807986A FR2420573A1 (en) 1978-03-20 1978-03-20 Forehearth connection to cupola furnace - includes syphon preventing slag entry into forehearth

Publications (2)

Publication Number Publication Date
FR2420573A1 true FR2420573A1 (en) 1979-10-19
FR2420573B1 FR2420573B1 (en) 1981-07-31

Family

ID=9206024

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7807986A Granted FR2420573A1 (en) 1978-03-20 1978-03-20 Forehearth connection to cupola furnace - includes syphon preventing slag entry into forehearth

Country Status (1)

Country Link
FR (1) FR2420573A1 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR532633A (en) * 1919-03-28 1922-02-08 Method and device for the production of steel and iron
FR576221A (en) * 1923-03-05 1924-08-13 Duerkoppwerke Method and apparatus for preventing slag from passing from a melting tank to a front crucible
FR577812A (en) * 1924-02-26 1924-09-11 Cupola refinements
DE492495C (en) * 1930-02-24 Friedrich Schinke Process for cooling down the slag and using the slag heat to preheat the blower wind when operating cupolas
GB450491A (en) * 1935-04-16 1936-07-20 Friedrich Schinke Improvements in cupola and blast furnaces
DE1932161A1 (en) * 1969-06-25 1971-01-07 Strico Ges Fuer Metallurg Und Adjusting the height of the slag column in a - cupola furnace during smelting
FR2311849A1 (en) * 1975-05-20 1976-12-17 Tech Des Ind De Fonderie Centr PROCESS FOR MASTERING THE CAST IRON OF A CUBILOT AND CUBILOT PERFECTED ACCORDING TO THIS PROCEDURE
DE2631336A1 (en) * 1976-07-13 1978-01-19 Hennes Werner Kg Cupola hearth siphoning system - in which 90 per cent or hearth is raised to height corresponding to max. slag level

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE492495C (en) * 1930-02-24 Friedrich Schinke Process for cooling down the slag and using the slag heat to preheat the blower wind when operating cupolas
FR532633A (en) * 1919-03-28 1922-02-08 Method and device for the production of steel and iron
FR576221A (en) * 1923-03-05 1924-08-13 Duerkoppwerke Method and apparatus for preventing slag from passing from a melting tank to a front crucible
FR577812A (en) * 1924-02-26 1924-09-11 Cupola refinements
GB450491A (en) * 1935-04-16 1936-07-20 Friedrich Schinke Improvements in cupola and blast furnaces
DE1932161A1 (en) * 1969-06-25 1971-01-07 Strico Ges Fuer Metallurg Und Adjusting the height of the slag column in a - cupola furnace during smelting
FR2311849A1 (en) * 1975-05-20 1976-12-17 Tech Des Ind De Fonderie Centr PROCESS FOR MASTERING THE CAST IRON OF A CUBILOT AND CUBILOT PERFECTED ACCORDING TO THIS PROCEDURE
DE2631336A1 (en) * 1976-07-13 1978-01-19 Hennes Werner Kg Cupola hearth siphoning system - in which 90 per cent or hearth is raised to height corresponding to max. slag level

Also Published As

Publication number Publication date
FR2420573B1 (en) 1981-07-31

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Legal Events

Date Code Title Description
ST Notification of lapse