FR2454468A1 - Reheating furnace, esp. for iron and steel ingots - have furnace burners providing heat via radiation or by long hot flame with adjustable length - Google Patents

Reheating furnace, esp. for iron and steel ingots - have furnace burners providing heat via radiation or by long hot flame with adjustable length

Info

Publication number
FR2454468A1
FR2454468A1 FR8009050A FR8009050A FR2454468A1 FR 2454468 A1 FR2454468 A1 FR 2454468A1 FR 8009050 A FR8009050 A FR 8009050A FR 8009050 A FR8009050 A FR 8009050A FR 2454468 A1 FR2454468 A1 FR 2454468A1
Authority
FR
France
Prior art keywords
furnace
burner
temp
esp
iron
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.)
Withdrawn
Application number
FR8009050A
Other languages
French (fr)
Inventor
Carlo Pere
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.)
Bloom Engineering Europa GmbH
Original Assignee
Bloom Engineering Europa 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
Application filed by Bloom Engineering Europa GmbH filed Critical Bloom Engineering Europa GmbH
Publication of FR2454468A1 publication Critical patent/FR2454468A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/70—Furnaces for ingots, i.e. soaking pits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/12—Radiant burners
    • F23D14/125—Radiant burners heating a wall surface to incandescence
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
    • F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
    • F23D14/24—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other at least one of the fluids being submitted to a swirling motion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/10—Sequential burner running

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Furnace Details (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

At least one wall of the furnace chamber is fitted with >=1 burner, which can be modified to achieve heating either by radiation, or by a long hot flame shotting across the furnaces. The furnace is fitted with burner control appts. monitoring the difference in temp. between the wall on which the burner is located and the wall opposite the burner. The temp. difference is employed for automatic and continuous adjustment of the type or length of the flame so a constant, uniform temp. is obtd. in the furnace chamber. Pref. burner includes an axial pipe for the injection of an inert gas or air. This pipe is located inside a tube delivering liq.-, gaseous-, or powdered fuel. On the outside of the fuel delivery tube is a ring chamber which feeds air through nozzles creating turbulence. The advantages are reduced fuel consumption and a uniform ingot temp.
FR8009050A 1979-04-17 1980-04-16 Reheating furnace, esp. for iron and steel ingots - have furnace burners providing heat via radiation or by long hot flame with adjustable length Withdrawn FR2454468A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT12550/79A IT1124041B (en) 1979-04-17 1979-04-17 WELL OVEN

Publications (1)

Publication Number Publication Date
FR2454468A1 true FR2454468A1 (en) 1980-11-14

Family

ID=11141486

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8009050A Withdrawn FR2454468A1 (en) 1979-04-17 1980-04-16 Reheating furnace, esp. for iron and steel ingots - have furnace burners providing heat via radiation or by long hot flame with adjustable length

Country Status (7)

Country Link
JP (1) JPS55145126A (en)
BE (1) BE882761A (en)
DE (1) DE3014383A1 (en)
FR (1) FR2454468A1 (en)
IT (1) IT1124041B (en)
LU (1) LU82366A1 (en)
NL (1) NL8002186A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2527312A1 (en) * 1982-05-24 1983-11-25 Freiberg Brennstoffinst RADIANT BURNER FOR MIXED OPERATION WITH FLAT FLAME EXTENDING IN RADIAL DIRECTION
EP0107916A1 (en) * 1982-09-30 1984-05-09 BBC Industries, INC. Flame control system for heat exchanger
EP0164872A1 (en) * 1984-05-09 1985-12-18 Kawasaki Steel Corporation Low load burning burner
EP0763692A2 (en) * 1995-09-15 1997-03-19 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Oxy-fuel burner having coaxial fuel and oxidant outlets

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2681550B2 (en) * 1991-04-25 1997-11-26 新日本製鐵株式会社 Flame flame shape control method for burner for steel heating furnace
CN109323280B (en) * 2018-11-21 2024-05-24 珠海市华远自动化科技有限公司 Flame length detection device and method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2543388A (en) * 1946-12-20 1951-02-27 Steel Proc Company Method of furnace operation
FR1092593A (en) * 1953-11-02 1955-04-22 Amsler Morton Corp Method for heating a furnace for reheating ingots by alternating high and low fuel supply
GB836992A (en) * 1955-03-16 1960-06-09 Stein & Atkinson Ltd Improvements relating to a method of and means for heating a one-way, horse-shoe flame fired furnace
FR2069484A5 (en) * 1969-11-17 1971-09-03 Impianti Spa Soc It
FR2394050A2 (en) * 1977-06-10 1979-01-05 British Steel Corp FUEL HEATED OVEN

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2543388A (en) * 1946-12-20 1951-02-27 Steel Proc Company Method of furnace operation
FR1092593A (en) * 1953-11-02 1955-04-22 Amsler Morton Corp Method for heating a furnace for reheating ingots by alternating high and low fuel supply
GB836992A (en) * 1955-03-16 1960-06-09 Stein & Atkinson Ltd Improvements relating to a method of and means for heating a one-way, horse-shoe flame fired furnace
FR2069484A5 (en) * 1969-11-17 1971-09-03 Impianti Spa Soc It
FR2394050A2 (en) * 1977-06-10 1979-01-05 British Steel Corp FUEL HEATED OVEN

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IRON AND STEEL ENGINEER, vol. 48, no. 7, juillet 1971 (PITTSBURGH, US) K.L. GILBERT: "Soaking pit innovations - Allegheny Ludlum", pages 33-38 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2527312A1 (en) * 1982-05-24 1983-11-25 Freiberg Brennstoffinst RADIANT BURNER FOR MIXED OPERATION WITH FLAT FLAME EXTENDING IN RADIAL DIRECTION
EP0107916A1 (en) * 1982-09-30 1984-05-09 BBC Industries, INC. Flame control system for heat exchanger
EP0164872A1 (en) * 1984-05-09 1985-12-18 Kawasaki Steel Corporation Low load burning burner
EP0763692A2 (en) * 1995-09-15 1997-03-19 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Oxy-fuel burner having coaxial fuel and oxidant outlets
EP0763692A3 (en) * 1995-09-15 1999-01-20 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Oxy-fuel burner having coaxial fuel and oxidant outlets

Also Published As

Publication number Publication date
DE3014383A1 (en) 1980-11-06
BE882761A (en) 1980-07-31
LU82366A1 (en) 1980-07-31
JPS55145126A (en) 1980-11-12
IT7912550A0 (en) 1979-04-17
NL8002186A (en) 1980-10-21
IT1124041B (en) 1986-05-07

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Legal Events

Date Code Title Description
ST Notification of lapse