SE0702774L - Procedure for heating in an industrial oven - Google Patents

Procedure for heating in an industrial oven

Info

Publication number
SE0702774L
SE0702774L SE0702774A SE0702774A SE0702774L SE 0702774 L SE0702774 L SE 0702774L SE 0702774 A SE0702774 A SE 0702774A SE 0702774 A SE0702774 A SE 0702774A SE 0702774 L SE0702774 L SE 0702774L
Authority
SE
Sweden
Prior art keywords
heating
furnace
temperature
continuously
cond
Prior art date
Application number
SE0702774A
Other languages
Swedish (sv)
Other versions
SE532567C2 (en
Inventor
Tomas Ekman
Original Assignee
Aga Ab
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 Aga Ab filed Critical Aga Ab
Priority to SE0702774A priority Critical patent/SE532567C2/en
Priority to EP08171076.6A priority patent/EP2071262B1/en
Priority to RU2008149158/02A priority patent/RU2008149158A/en
Publication of SE0702774L publication Critical patent/SE0702774L/en
Publication of SE532567C2 publication Critical patent/SE532567C2/en

Links

Classifications

    • 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
    • F27D19/00—Arrangements of controlling devices
    • 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
    • C21D11/00—Process control or regulation for heat treatments
    • 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
    • C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
    • 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
    • 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
    • F27D19/00—Arrangements of controlling devices
    • F27D2019/0028—Regulation
    • F27D2019/0034—Regulation through control of a heating quantity such as fuel, oxidant or intensity of current

Landscapes

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

Abstract

A method for heating billets or ingots in an industrial furnace by means of at least one burner, in which furnace the heating power (P) continuously introduced into the furnace is controlled by means of a regulator whose input parameter is the temperature (T furnace ) of the furnace atmosphere, which temperature (T furnace ) is measured by means of a temperature measuring device, wherein the regulator is caused to control the heating in at least one first heating step and a subsequent second temperature equalising step. The invention is characterised in that the instantaneous heating power (P) is measured continuously, in that the derivative of the heating power (P) with respect to time (dP/dt) is calculated continuously, and in that the heating is interrupted when a primary condition, namely that this derivative (dP/dt) falls within a predetermined interval ([dP/dP cond 1 , dP/dP cond 2 ]), is met, provided that the heating at this time is in the subsequent second temperature equalising step.
SE0702774A 2007-12-13 2007-12-13 Procedure for heating in an industrial oven SE532567C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE0702774A SE532567C2 (en) 2007-12-13 2007-12-13 Procedure for heating in an industrial oven
EP08171076.6A EP2071262B1 (en) 2007-12-13 2008-12-09 Method for heating in an industrial furnace
RU2008149158/02A RU2008149158A (en) 2007-12-13 2008-12-12 METHOD OF HEATING IN INDUSTRIAL FURNACE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0702774A SE532567C2 (en) 2007-12-13 2007-12-13 Procedure for heating in an industrial oven

Publications (2)

Publication Number Publication Date
SE0702774L true SE0702774L (en) 2009-06-14
SE532567C2 SE532567C2 (en) 2010-02-23

Family

ID=40456992

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0702774A SE532567C2 (en) 2007-12-13 2007-12-13 Procedure for heating in an industrial oven

Country Status (3)

Country Link
EP (1) EP2071262B1 (en)
RU (1) RU2008149158A (en)
SE (1) SE532567C2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2415560B1 (en) * 2010-04-23 2014-09-17 Gerdau Investigación Y Desarrollo Europa, S.A. HEATING OVEN CONTROL PROCEDURE
WO2011131802A1 (en) * 2010-04-23 2011-10-27 Sidenor Investigación Y Desarrollo, S.A. Control method for heating ovens
JP6850737B2 (en) 2015-06-24 2021-03-31 ノベリス・インコーポレイテッドＮｏｖｅｌｉｓ Ｉｎｃ． Fast reaction, heaters and related control systems used in combination with metal processing furnaces

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2788175A (en) * 1955-05-12 1957-04-09 James G Murray Jr Furnace control system
DE2808771C3 (en) * 1978-03-01 1982-03-04 Estel Hoesch Werke Ag, 4600 Dortmund Method of regulating a heating furnace for steel ingots

Also Published As

Publication number Publication date
RU2008149158A (en) 2010-06-20
EP2071262B1 (en) 2016-08-03
EP2071262A1 (en) 2009-06-17
SE532567C2 (en) 2010-02-23

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Legal Events

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