DE69707797T2 - Drehherdofen - Google Patents

Drehherdofen

Info

Publication number
DE69707797T2
DE69707797T2 DE69707797T DE69707797T DE69707797T2 DE 69707797 T2 DE69707797 T2 DE 69707797T2 DE 69707797 T DE69707797 T DE 69707797T DE 69707797 T DE69707797 T DE 69707797T DE 69707797 T2 DE69707797 T2 DE 69707797T2
Authority
DE
Germany
Prior art keywords
zone
gases
chamber
hearth furnace
discharge
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.)
Expired - Lifetime
Application number
DE69707797T
Other languages
English (en)
Other versions
DE69707797D1 (de
Inventor
Piergiorgio Fontana
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.)
SMS Demag SpA
Original Assignee
SMS Demag SpA
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 SMS Demag SpA filed Critical SMS Demag SpA
Publication of DE69707797D1 publication Critical patent/DE69707797D1/de
Application granted granted Critical
Publication of DE69707797T2 publication Critical patent/DE69707797T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/10—Making spongy iron or liquid steel, by direct processes in hearth-type furnaces
    • C21B13/105—Rotary hearth-type furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0046—Making spongy iron or liquid steel, by direct processes making metallised agglomerates or iron oxide
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/10—Making spongy iron or liquid steel, by direct processes in hearth-type furnaces
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/16—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a circular or arcuate path
    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/3005—Details, accessories, or equipment peculiar to furnaces of these types arrangements for circulating gases

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Tunnel Furnaces (AREA)
  • Manufacture Of Iron (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Finger-Pressure Massage (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Toys (AREA)
  • Processing Of Solid Wastes (AREA)
  • Manufacture And Refinement Of Metals (AREA)
DE69707797T 1996-09-06 1997-08-08 Drehherdofen Expired - Lifetime DE69707797T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT96GE000079A IT1287799B1 (it) 1996-09-06 1996-09-06 Forno a suola rotante.

Publications (2)

Publication Number Publication Date
DE69707797D1 DE69707797D1 (de) 2001-12-06
DE69707797T2 true DE69707797T2 (de) 2002-05-23

Family

ID=11354939

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69707797T Expired - Lifetime DE69707797T2 (de) 1996-09-06 1997-08-08 Drehherdofen

Country Status (11)

Country Link
US (1) US5899688A (de)
EP (1) EP0828127B1 (de)
CN (1) CN1128978C (de)
AT (1) ATE208031T1 (de)
AU (1) AU722005B2 (de)
BR (1) BR9704652A (de)
CA (1) CA2213668A1 (de)
DE (1) DE69707797T2 (de)
IT (1) IT1287799B1 (de)
PL (1) PL321919A1 (de)
ZA (1) ZA977267B (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3404309B2 (ja) * 1999-01-18 2003-05-06 株式会社神戸製鋼所 還元鉄塊成物の製造方法および製造装置
US6390810B1 (en) * 1999-03-15 2002-05-21 Maumee Research & Engineering, Inc. Method and apparatus for reducing a feed material in a rotary hearth furnace
CN1219891C (zh) * 1999-05-06 2005-09-21 株式会社神户制钢所 直接还原法及回转炉床炉
US6368104B1 (en) * 1999-09-24 2002-04-09 The Boc Group, Inc. Rotary hearth furnace
EP2129985B8 (de) * 2007-09-18 2012-10-31 INNOVATHERM Prof. Dr. Leisenberg GmbH + Co. KG Verfahren und vorrichtung zur wärmerückgewinnung
CN106086378B (zh) * 2016-08-05 2017-11-28 黄冈市中洲安达热工设备有限公司 装料架悬挂式顶部传动环形炉
CN106403593A (zh) * 2016-11-22 2017-02-15 江苏省冶金设计院有限公司 一种磁化‑还原焙烧一体转底炉
CN108893573A (zh) * 2018-06-08 2018-11-27 上海宝幢新能源科技有限公司 一种转底炉的燃烧优化系统及方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3827878A (en) * 1971-06-26 1974-08-06 W Wenzel Methods and apparatus for the reduction of metal ores,particularly iron ores
US3787171A (en) * 1972-06-15 1974-01-29 Hunter Eng Co Closed loop, inert atmosphere, paint line oven heat source
US4133636A (en) * 1977-06-30 1979-01-09 Blu-Surf, Inc. Tentor
US4662840A (en) * 1985-09-09 1987-05-05 Hunter Engineering (Canada) Ltd. Indirect fired oven system for curing coated metal products
US4701214A (en) * 1986-04-30 1987-10-20 Midrex International B.V. Rotterdam Method of producing iron using rotary hearth and apparatus
US5186741A (en) * 1991-04-12 1993-02-16 Zia Patent Company Direct reduction process in a rotary hearth furnace
BE1008397A6 (fr) * 1994-07-13 1996-05-07 Centre Rech Metallurgique Procede pour fabriquer une eponge de fer a basse teneur en soufre.

Also Published As

Publication number Publication date
DE69707797D1 (de) 2001-12-06
BR9704652A (pt) 1998-11-10
ITGE960079A1 (it) 1998-03-06
IT1287799B1 (it) 1998-08-18
EP0828127A1 (de) 1998-03-11
CA2213668A1 (en) 1998-03-06
EP0828127B1 (de) 2001-10-31
ZA977267B (en) 1998-09-01
PL321919A1 (en) 1998-03-16
CN1128978C (zh) 2003-11-26
CN1178316A (zh) 1998-04-08
ATE208031T1 (de) 2001-11-15
AU3421397A (en) 1998-03-12
US5899688A (en) 1999-05-04
AU722005B2 (en) 2000-07-20

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition