EP0892236A1 - Couvercle refroidi pour poche de coulée - Google Patents

Couvercle refroidi pour poche de coulée Download PDF

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Publication number
EP0892236A1
EP0892236A1 EP98112468A EP98112468A EP0892236A1 EP 0892236 A1 EP0892236 A1 EP 0892236A1 EP 98112468 A EP98112468 A EP 98112468A EP 98112468 A EP98112468 A EP 98112468A EP 0892236 A1 EP0892236 A1 EP 0892236A1
Authority
EP
European Patent Office
Prior art keywords
hood
tube
pan
cooled
water
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.)
Granted
Application number
EP98112468A
Other languages
German (de)
English (en)
Other versions
EP0892236B1 (fr
Inventor
Klaus-Jürgen Kühne
Manfred Schubert
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 Siemag AG
Original Assignee
SMS Schloemann Siemag AG
Schloemann Siemag AG
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 Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0892236A1 publication Critical patent/EP0892236A1/fr
Application granted granted Critical
Publication of EP0892236B1 publication Critical patent/EP0892236B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • 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
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/18—Door frames; Doors, lids, removable covers
    • F27D1/1808—Removable covers
    • F27D1/1816—Removable covers specially adapted for arc furnaces
    • 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

Definitions

  • the invention relates to a water-cooled, multi-part Hood for metallurgical vessels, in particular ladles, with in pipe-to-pipe and / or pipe-gap-pipe welding arranged cooling tubes, with one in the lid the hood arranged opening for the use of a ff centerpiece for carrying electrodes and Openings for the discharge of smoke gases.
  • DE 34 27 086 C1 is a metallurgical vessel with one leaving a peripheral air gap heat shield arranged above known, the has at least one opening through which each of outside a probe, lance or electrode into the interior of the vessel and with one around the heat shield placed, downwardly open suction hood, the the vessel extends beyond the peripheral air gap surrounds and between the heat shield and the Extraction hood formed air space to a suction device connected.
  • DE 42 24 845 A1 describes a device for Sealing a circumferential gap between one Steel ladle and the water-cooled ladle hood of a pan oven heated by electrodes. This is to prevent that the sudden addition of aggregates and alloying agents strong as a result of chemical reaction The amount of flue gas can escape freely.
  • a disadvantage of the pan hoods mentioned is that insufficient sealing on the upper lid area of the Carrying lances or electrodes and the insufficient extraction of the hot smoke gases in the upper part the pan hood.
  • the invention is therefore based on the object to design the generic embodiment in that that targeted extraction of the flue gases at the same time at various points on the water-cooled pan hood is feasible.
  • the pan hood consists of one outer and an inner tubular cylinder, the lower Hood part, which is arranged by vertically arranged cooling pipes, which both outside and inside over the edge of the Pan down, is divided.
  • the flue gases are through the lower part of the water-cooled hood and targeted in the upper part at three points in the area of the electrodes targeted suction.
  • the gas flows are outside in the Area of transition to the stationary exhaust pipe merged.
  • the percentage of deducted Flue gas quantities over this lower, inner hood part is about 80% of the total and is in one Temperature range between 1200 ° C and 1400 ° C.
  • Another extraction area is in the upper part of the Hood, the so-called secondary hood.
  • This part of the hood is designed so that as few smoke gases as possible can penetrate this area because here too vertical cooling tube wall circular downwards cantilevered.
  • the Incoming smoke gases targeted in the area of Sucked electrodes at three places.
  • the openings in the cylindrical part of the upper hood part therefore make sure that an even Suction takes place.
  • the gas flows are also here outside in the area of the transition to the stationary Exhaust pipe merged.
  • the proportion of the secondary hood or The amount of gas withdrawn from the upper hood part is approximately 20% of the total and lies in a temperature range between 600 ° and 1200 ° C.
  • the entire hood is water-cooled and as pipe-to-pipe and / or partially as pipe-gap-pipe welding executed, the water-cooled work door is opened and closed pneumatically. Through this The temperature of the work door is increased by hand lances determined and samples of the melt taken. The alloy funnel also becomes pneumatic closed or opened. In the open state prevents air curtain in the downpipe larger quantities of flue gas can escape.
  • the addition funnel for aggregates and alloys is installed as a water-cooled nozzle. This water-cooled The nozzle becomes dustproof in the pan hood built-in.
  • the ff centerpiece for the electrode bushings is from an interchangeable water-cooled ring of three tubes placed one above the other. It will be one Gap width equal to or less than 25 mm between the Electrodes and the ramming mass of the heart, around the flue gas passage or false air intake to keep within limits.
  • the cooling water is supplied via pipes flexible expansion joints and their distributors.
  • cooling circuits are provided for the In the pan hood according to the invention. There are also two cooling circuits for the end nozzle of the alloy funnel and for the water-cooled ring of the heart.
  • the inner tubular cylinder of the pan hood protrudes Working position in the ladle, the outer one Pipe cylinder is above the pan rim outside of the Pouring ladle positioned.
  • the inner tube cylinder can have a smaller capacity also placed directly on the edge of the pan become.
  • the inner tube cylinder of the hood When using ladles with a low Capacity and a pan diameter that smaller than the inner tube cylinder of the hood the inner tube cylinder of the hood is over lowered the pan rim. In this case it depends Hood free in the lid lifting device or it supports attached to the outside of the pan Claws or reinforcing collar below the pan hood from.
  • the invention is based on two schematic Drawings approached explained.
  • Fig. 1 shows a side view of the water-cooled Pan hood in working position over one with one Melt (13) filled steel ladle (12), the Electrodes (9) through the ff material (11) of the water-cooled Centerpiece (18) in the so-called heating position are lowered.
  • the water-cooled pan hood (1, 2, 3) consists of welded in tube-to-tube or tube-gap tube Cooling tubes (8) which are vertically one above the other or are arranged horizontally next to each other.
  • the lower, outer hood part (1) and the lower, inner hood part (2) are immediately above the upper one Pan edge (22) positioned and by support arms of the Lid lifting device (19) on the cooling walls (8) attached.
  • In the inner hood part (2) are the Cooling pipes (8) of the upper hood part (3) inserted.
  • the inner tube cylinder (8.2) of the inner hood (2) is longer than the outer tubular cylinder (8.1) of the outer Hood (1) trained.
  • the hot smoke gases are extracted through suction openings (4) sucked into a first gas guide tube (6) and from there a main dedusting (20) fed.
  • the less hot flue gases are in through suction openings (5)
  • a second gas guide pipe (7) is sucked in and from there an auxiliary dedusting (21) fed.
  • Fresh air can through a suction opening (14) above the pan rim (23) be sucked in.
  • the ff material (11) of the heart (18) is in an opening (10) between the water-cooled Rings of the centerpiece (18) attached.
  • a pivotable, cooled work door (16) is on Transition from horizontal and vertical cooling tubes (8) in the upper part of the inner tube cylinder (8.2) arranged.
  • the pan hood (1, 2) can be in Working position except for on the ladle (12) attached reinforcing collar (23) or claws be lowered.
  • Fig. 2 shows a top view of the water-cooled Pan hood (1, 2) with central opening (10) and water-cooled ring (18), which together with the upper cooling tube wall (8) as a support for the ff material (11) through which the electrodes (9) slide.
  • the lower suction openings (4) are with the gas pipe (6) connected, the suction openings (5) of the the upper hood part (3) are attached to the gas pipe (7) connected, the gas guide tube (6) to a Main dedusting (20) and the gas pipe (7) a secondary dedusting (21) connects.
  • the pan hood (1, 2) is on three support arms, the cover lifting device (19), detachable attached.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Farming Of Fish And Shellfish (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Outer Garments And Coats (AREA)
  • Furnace Details (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
EP98112468A 1997-07-09 1998-07-03 Couvercle refroidi pour poche de coulée Expired - Lifetime EP0892236B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19729317A DE19729317A1 (de) 1997-07-09 1997-07-09 Wassergekühlte Pfannenhaube
DE19729317 1997-07-09

Publications (2)

Publication Number Publication Date
EP0892236A1 true EP0892236A1 (fr) 1999-01-20
EP0892236B1 EP0892236B1 (fr) 2001-04-25

Family

ID=7835128

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98112468A Expired - Lifetime EP0892236B1 (fr) 1997-07-09 1998-07-03 Couvercle refroidi pour poche de coulée

Country Status (7)

Country Link
US (1) US6036915A (fr)
EP (1) EP0892236B1 (fr)
AT (1) ATE200822T1 (fr)
DE (2) DE19729317A1 (fr)
ES (1) ES2158635T3 (fr)
MX (1) MXPA98005472A (fr)
TR (1) TR199801284A3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2356919A (en) * 1999-09-24 2001-06-06 Rhs Paneltech Ltd Metallurgical ladle or furnace roof

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19855689C2 (de) * 1998-03-04 2001-10-31 Siemens Ag Wechselstrompfannenofen, insbesondere Drehstrompfannenofen
IT1310527B1 (it) 1999-01-20 2002-02-18 Danieli Off Mecc Sistema di tamponamento della regione del delta della voltadi un forno elettrico ad arco
IT1310528B1 (it) 1999-01-20 2002-02-18 Danieli Off Mecc Sistema di aspirazione per la riduzione delle perdite dimateriali fini e polveri in un forno elettrico ad arco
IT1315031B1 (it) * 2000-08-29 2003-01-27 Danieli Off Mecc Dispositivo di raffreddamento della volta per forni elettrici
CN103307892B (zh) * 2013-06-04 2015-03-25 广州资源环保水电工程有限公司 一种高温烟气导流装置
DE102016124481B4 (de) * 2016-12-15 2021-07-01 Ald Vacuum Technologies Gmbh Schmelzanlage und –verfahren
KR102077948B1 (ko) * 2018-12-20 2020-02-14 현대제철 주식회사 전기로용 루프 냉각장치
CN114713811B (zh) * 2022-03-16 2023-10-24 内蒙古鄂尔多斯电力冶金集团股份有限公司 一种铁合金浇铸烟尘回收装置及回收方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3147337A1 (de) * 1981-11-28 1983-06-09 SIDEPAL S.A. Société Industrielle de Participations Luxembourgeoise, Luxembourg Wassergekuehlter, haubenfoermiger deckel
DE3427086C1 (de) * 1984-07-19 1986-04-10 Mannesmann AG, 4000 Düsseldorf Metallurgisches Gefaess
DE3602498A1 (de) * 1985-02-12 1986-08-14 Daidotokushuko K.K., Nagoya, Aichi Pfannenofen
DE4224845A1 (de) * 1992-07-28 1994-02-03 Gutehoffnungshuette Man Abdichtung eines umlaufenden Spaltes zwischen Stahlgießpfanne und Pfannenhaube

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1458876B2 (de) * 1965-08-19 1970-05-21 Industrie-Companie Kleinewefers GmbH, 4150 Krefeld Vorrichtung zum Sperren und Absaugen der im Herdraum eines Metallschmelzofens entstehenden Gase und Stäube
DE2817869C3 (de) * 1978-04-24 1983-04-07 Krupp Stahl Ag, 4630 Bochum Deckel für einen Elektrolichtbogenofen
US4813055A (en) * 1986-08-08 1989-03-14 Union Carbide Corporation Furnace cooling system and method
JPH0610031A (ja) * 1992-06-25 1994-01-18 Kawasaki Steel Corp Ｖｏｄ装置のレードルカバー
US5648981A (en) * 1994-11-22 1997-07-15 Ucar Carbon Technology Corporation Cooling system for a two component furnace roof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3147337A1 (de) * 1981-11-28 1983-06-09 SIDEPAL S.A. Société Industrielle de Participations Luxembourgeoise, Luxembourg Wassergekuehlter, haubenfoermiger deckel
DE3427086C1 (de) * 1984-07-19 1986-04-10 Mannesmann AG, 4000 Düsseldorf Metallurgisches Gefaess
DE3602498A1 (de) * 1985-02-12 1986-08-14 Daidotokushuko K.K., Nagoya, Aichi Pfannenofen
DE4224845A1 (de) * 1992-07-28 1994-02-03 Gutehoffnungshuette Man Abdichtung eines umlaufenden Spaltes zwischen Stahlgießpfanne und Pfannenhaube

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2356919A (en) * 1999-09-24 2001-06-06 Rhs Paneltech Ltd Metallurgical ladle or furnace roof
US6418157B1 (en) 1999-09-24 2002-07-09 Rhs Paneltech Limited Roof for a metallurgical ladle/furnace
GB2356919B (en) * 1999-09-24 2002-08-21 Rhs Paneltech Ltd A roof for a metallurgical ladle/furnace
DE10047555B4 (de) * 1999-09-24 2006-10-26 Rhs Paneltech Ltd. Abdeckung für metallurgischen Schmelzofen

Also Published As

Publication number Publication date
TR199801284A2 (xx) 1999-01-18
ATE200822T1 (de) 2001-05-15
US6036915A (en) 2000-03-14
MXPA98005472A (es) 2004-10-28
DE59800650D1 (de) 2001-05-31
EP0892236B1 (fr) 2001-04-25
TR199801284A3 (tr) 1999-01-18
DE19729317A1 (de) 1999-01-14
ES2158635T3 (es) 2001-09-01

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