FI20061124L - Method and apparatus for pretreatment of material to be fed into a melting furnace - Google Patents

Method and apparatus for pretreatment of material to be fed into a melting furnace Download PDF

Info

Publication number
FI20061124L
FI20061124L FI20061124A FI20061124A FI20061124L FI 20061124 L FI20061124 L FI 20061124L FI 20061124 A FI20061124 A FI 20061124A FI 20061124 A FI20061124 A FI 20061124A FI 20061124 L FI20061124 L FI 20061124L
Authority
FI
Finland
Prior art keywords
preheating
fed
silo
gas
equipment
Prior art date
Application number
FI20061124A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI20061124A0 (en
Inventor
Harri Louhelainen
Tom Roennberg
Janne Ollila
Original Assignee
Outotec Oyj
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 Outotec Oyj filed Critical Outotec Oyj
Priority to FI20061124A priority Critical patent/FI20061124L/en
Publication of FI20061124A0 publication Critical patent/FI20061124A0/en
Priority to ZA200710681A priority patent/ZA200710681B/en
Priority to PCT/FI2007/000293 priority patent/WO2008087245A1/en
Publication of FI20061124L publication Critical patent/FI20061124L/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
    • F27D13/00—Apparatus for preheating charges; Arrangements for preheating charges
    • 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
    • C21C5/527—Charging of the electric furnace
    • 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
    • C21C5/56—Manufacture of steel by other methods
    • C21C5/562—Manufacture of steel by other methods starting from scrap
    • C21C5/565—Preheating of scrap
    • 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
    • F27B3/19—Arrangements of devices for discharging
    • 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
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
    • F27D17/003—Extraction of waste gases, collection of fumes and hoods used therefor of waste gases emanating from an electric arc furnace
    • 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
    • C21C2100/00—Exhaust gas
    • C21C2100/06—Energy from waste gas used in other processes
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Furnace Details (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Manufacture Of Iron (AREA)

Abstract

The invention relates to a method of and equipment for pre-treating material that is fed into a smelting furnace (2), such as an electric furnace, whereby the feed material is directed to a preheating system (1) comprising several separate preheating silos (3), each containing at least one feed pipe (6) that is connected to the smelting furnace and a means (12) for distributing the preheating gas in the preheating silo, whereby the exhaust gas (16) that is released from each preheating silo (3) of the preheating system is directed to common gas cleaning equipment (10), the gas pressure in each individual preheating silo being controlled by adjusting the amount of exhaust gas that is fed into the equipment.
FI20061124A 2006-12-15 2006-12-15 Method and apparatus for pretreatment of material to be fed into a melting furnace FI20061124L (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI20061124A FI20061124L (en) 2006-12-15 2006-12-15 Method and apparatus for pretreatment of material to be fed into a melting furnace
ZA200710681A ZA200710681B (en) 2006-12-15 2007-12-07 Method of and equipment for pretreating material that is fed into a smelting furnace
PCT/FI2007/000293 WO2008087245A1 (en) 2006-12-15 2007-12-13 Method of and equipment for pretreating material that is fed into a smelting furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20061124A FI20061124L (en) 2006-12-15 2006-12-15 Method and apparatus for pretreatment of material to be fed into a melting furnace

Publications (2)

Publication Number Publication Date
FI20061124A0 FI20061124A0 (en) 2006-12-15
FI20061124L true FI20061124L (en) 2008-06-16

Family

ID=37623750

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20061124A FI20061124L (en) 2006-12-15 2006-12-15 Method and apparatus for pretreatment of material to be fed into a melting furnace

Country Status (3)

Country Link
FI (1) FI20061124L (en)
WO (1) WO2008087245A1 (en)
ZA (1) ZA200710681B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI125166B (en) 2013-04-08 2015-06-30 Outotec Oyj METHOD AND ARRANGEMENT FOR FEEDING NUTRIENT FROM THE NUTRIENT TANK TO THE OVEN Oven

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH645671A5 (en) * 1980-06-06 1984-10-15 Nippon Kokan Kk METHOD FOR PREHEATING STEEL SCRAP BY EXHAUST GASES FROM THE ELECTRIC MELTING FURNACE.
US4385889A (en) * 1981-08-19 1983-05-31 Nikko Industry Co., Ltd. Apparatus for preheating material for making steel
EP0074214B1 (en) * 1981-08-31 1985-11-06 Kawasaki Jukogyo Kabushiki Kaisha Scrap preheating system for electric furnace
FI71008C (en) * 1984-06-27 1986-10-27 Outokumpu Oy SAETTING OVER ANORDING FOERBEREDNING AV EN CHARGEBLANDNING AVSEDD ATT INMATAS I EN SMAELTUGN
SE452191C (en) * 1986-04-15 1989-08-14 Nab Konsult PROCEDURE AND DEVICE FOR HEATING OF WASTE TO OVEN
FI105236B (en) * 1998-06-15 2000-06-30 Outokumpu Oy Feeding apparatus for preparing a feed mixture to be fed to a melting furnace

Also Published As

Publication number Publication date
WO2008087245A1 (en) 2008-07-24
ZA200710681B (en) 2008-11-26
FI20061124A0 (en) 2006-12-15

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Owner name: OUTOTEC OYJ

Free format text: OUTOTEC OYJ

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