MY123180A - Furnace top preheating system - Google Patents

Furnace top preheating system

Info

Publication number
MY123180A
MY123180A MYPI9805700A MY123180A MY 123180 A MY123180 A MY 123180A MY PI9805700 A MYPI9805700 A MY PI9805700A MY 123180 A MY123180 A MY 123180A
Authority
MY
Malaysia
Prior art keywords
preheating
furnace top
exhaust gas
shaft
metal scrap
Prior art date
Application number
Inventor
Tamotsu Nomura
Tukio Niwa
Original Assignee
Daido Steel Co Ltd
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
Priority claimed from JP1327398A external-priority patent/JPH11201661A/en
Priority claimed from JP10055896A external-priority patent/JPH11237191A/en
Application filed by Daido Steel Co Ltd filed Critical Daido Steel Co Ltd
Publication of MY123180A publication Critical patent/MY123180A/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
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/002—Evacuating and treating of exhaust gases
    • 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
    • F27B3/18—Arrangements of devices for charging
    • F27B3/183—Charging of arc furnaces vertically through the roof, e.g. in three points
    • 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
    • F27D13/002—Preheating scrap
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/40—Gas purification of exhaust gases to be recirculated or used in other metallurgical processes
    • C21B2100/44—Removing particles, e.g. by scrubbing, dedusting
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
    • C21B2100/64—Controlling the physical properties of the gas, e.g. pressure or temperature
    • 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
    • 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
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0033—Heating elements or systems using burners
    • F27D2099/0046—Heating elements or systems using burners with incomplete combustion, e.g. reducing atmosphere
    • F27D2099/0048—Post- combustion
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Furnace Details (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

IN A FURNACE TOP PREHEATING APPARATUS, THE ABSORPTION OF METAL SCRAP INTO EXHAUST DUCTS OF THE FURNACE TOP PREHEATING APPARATUS IS PREVENTED, AND EVEN IF A PART OF THE METAL SCRAP IS ABSORBED, THE METAL SCRAP IS TRAPPED ON THE UPPERMOST SIDE OF AN EXHAUST GAS PROCESSING DEVICE, ACCORDINGLY, THE METAL SCRAP IS NEITHER ACCUMULATED WITHIN THE EXHAUST GAS DUCT ON THE DOWNSTREAM SIDE NOR BROUGHT TO A DEODORING TOWER, A COOLER OR A DUST COLLECTION DEVICE, IT IS POSSIBLE TO MAINTAIN A SMOOTH FLOW OF THE EXHAUST GAS AND TO MAINTAIN THE FUNCTION OF THE DEODORING TOWER, THE COOLER OR THE DUST COLLECTION DEVICE; IN THE FURNACE TOP PREHEATING APPARATUS PROVIDED WITH A PREHEATING DEVICE PROVIDED AT A FURNACE TOP OF A SMELTING FURNACE (11, 12) AND AN EXHAUST GAS PROCESSING DEVICE (101, 102) CONNECTED TO THE PREHEATING DEVICE, THE PREHEATING DEVICE BEING PROVIDED WITH A SHAFT PROVIDED AT THE FURNACE TOP OF THE SMELTING FURNACE, ONE OR MORE PREHEATING CHAMBERS (51, 52, 53) BEING FORMED IN THE SHAFT (21, 22) IN THE VERTICAL DIRECTION, AND EXHAUST GAS DUCTS (71~75) HAVING RESPECTIVE DAMPERS (61~65) BEING CONNECTED TO EACH UPPER WALL OF THE SHAFT FOR FORMING EACH PREHEATING CHAMBER (51,52,53) AND A SHAFT WALL BELOW THE LOWERMOST PREHEATING CHAMBER.
MYPI9805700 1998-01-07 1998-12-17 Furnace top preheating system MY123180A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1327398A JPH11201661A (en) 1998-01-07 1998-01-07 Top preheater for shaft type furnace
JP10055896A JPH11237191A (en) 1998-02-19 1998-02-19 Device for treating exhaust gas from furnace-top preheating device

Publications (1)

Publication Number Publication Date
MY123180A true MY123180A (en) 2006-05-31

Family

ID=26349040

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI9805700 MY123180A (en) 1998-01-07 1998-12-17 Furnace top preheating system

Country Status (4)

Country Link
KR (1) KR100538277B1 (en)
DE (1) DE19900123A1 (en)
MY (1) MY123180A (en)
TW (1) TW410265B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101801504B1 (en) * 2014-02-14 2017-11-24 스틸플랜테크가부시키가이샤 Material conveying bucket, preheater, melting facility, and method of operating the same
DE102014115671A1 (en) * 2014-10-28 2016-05-12 Gerhard Fuchs MELTING DEVICE AND MELTING METHOD
KR101712160B1 (en) * 2016-02-18 2017-03-09 주식회사 에스에이씨 Electric furnaces and method for preheating scrap in electric furnaces

Also Published As

Publication number Publication date
KR19990066830A (en) 1999-08-16
KR100538277B1 (en) 2006-06-21
TW410265B (en) 2000-11-01
DE19900123A1 (en) 2000-04-06

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