EP1325156B1 - Vorrichtung zum verteilen eines stückigen schüttgutes - Google Patents

Vorrichtung zum verteilen eines stückigen schüttgutes Download PDF

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Publication number
EP1325156B1
EP1325156B1 EP01969651A EP01969651A EP1325156B1 EP 1325156 B1 EP1325156 B1 EP 1325156B1 EP 01969651 A EP01969651 A EP 01969651A EP 01969651 A EP01969651 A EP 01969651A EP 1325156 B1 EP1325156 B1 EP 1325156B1
Authority
EP
European Patent Office
Prior art keywords
bulk material
scattering device
reactor
chutes
scattering
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
EP01969651A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1325156A2 (de
Inventor
Leopold Werner Kepplinger
Johann Wurm
Franz Berner
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.)
Primetals Technologies Austria GmbH
Original Assignee
Voest Alpine Industrienlagenbau GmbH
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 Voest Alpine Industrienlagenbau GmbH filed Critical Voest Alpine Industrienlagenbau GmbH
Publication of EP1325156A2 publication Critical patent/EP1325156A2/de
Application granted granted Critical
Publication of EP1325156B1 publication Critical patent/EP1325156B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/008—Composition or distribution of the charge
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
    • C21B13/002—Reduction of iron ores by passing through a heated column of carbon
    • 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
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B1/20—Arrangements of devices for charging
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0001—Positioning the charge
    • F27D2003/0006—Particulate materials
    • F27D2003/0007—Circular distribution

Definitions

  • the invention relates to a device for distributing a lumpy bulk material, in particular of at least partially prereduced iron ore, on an extensive area, in particular on a fixed bed, said surface in a reactor or container of physical or chemical process engineering, in particular in a reactor of a steelworks Production of pig iron or steel precursors, extends, and the particulate bulk material is charged via at least one charging device having at least two, in particular rotationally symmetric, fall legs, which are preferably arranged at the same distance from the longitudinal axis of the reactor.
  • the invention further relates to novel spreaders.
  • US Pat. No. 4,497,609 describes a device by means of which a stream of bulk material can be charged continuously into a shaft furnace. For this purpose, bulk material is charged via several drop legs to the periphery of the shaft furnace.
  • FR 1,367,391 teaches a device for introducing bulk material, wherein the bulk material flow is divided into sub-streams and introduced into an oven.
  • the present invention proves to be particularly advantageous when used in a melter gasifier, and is the most detailed documented in this regard.
  • the application of the invention is not limited to this embodiment, but the description of the processes in a melter gasifier is an exemplary explanation.
  • the applications of the invention in other metallurgical aggregates, in particular in a shaft furnace, are further concrete embodiments of the invention.
  • a melter gasifier is an aggregate for the production of pig iron or steel precursors, as is well known in the art.
  • the melter gasifier as described in the prior art, is used for melting a largely prereduced iron ore (DRI), as well as the production of reducing gas from reduction gas carriers, preferably chunk coal.
  • DRI largely prereduced iron ore
  • the coal and the DRI are usually introduced into the same via the dome of the melter gasifier, wherein it has proven to be beneficial to introduce the coal centrally.
  • the DRI is thus introduced via one or more decentralized openings on the carburetor dome in the melter gasifier.
  • the particulate bulk material is charged via at least one charging device, which has at least two, in particular rotationally symmetrical, fall legs, which preferably at the same distance from the longitudinal axis of the Reactor are arranged, wherein further at least a portion of the bulk material, at a scattering device in - seen from above - radial and / or tangential direction is distributed.
  • the bulk material is distributed at the scattering device at least partially within the fall leg.
  • the stray fields of adjacent downpipes overlap at least partially before reaching the fixed bed.
  • the invention is characterized by a device according to the invention for distributing a lumpy bulk material, in particular sponge iron from a bulk material flow over an extensive area, in particular on a fixed bed, said surface in a reactor of physical or chemical engineering, especially in a reactor of a steelworks for the production of pig iron or steel precursors, preferably in a melter gasifier, and wherein the particulate bulk material is charged via a charging device having at least two, preferably rotationally symmetric, fall legs, and the charging device, at least one of the fall legs associated, scattering device for widening the Has bulk material, by means of which at least a portion of the bulk material in - from the top - radial and / or tangential direction, distributable, the spreader aufwei a chain, preferably a round link chain st.
  • a radial and tangential distribution is particularly suitable, but causes both a radial and a tangential distribution Distribution applied separately also a broadening of the bulk flow, as well as a, albeit limited, scattering of the bulk material.
  • the fall legs are equidistant from the longitudinal axis of the reactor.
  • the bulk material is thereby unloaded on the fixed bed at several points along an imaginary circle or annulus, wherein according to a further preferred embodiment, the individual bulk material flows associated with the fall legs partially overlap. In this way, the failure of one or more fall legs can be compensated during the charging of the fixed bed.
  • the spreader is rigidly arranged.
  • An immovable, ie rigid, device is in contrast inexpensive and reliable.
  • the spreader is movable, but without mechanical drive, in particular without any drive arranged.
  • Rigid is in this case according to a preferred embodiment of the invention, the attachment of the spreader.
  • the spreader is mounted within the fall leg. This ensures that the spreader is not exposed to the high temperature of the melter gasifier.
  • the high radiant heat in the gas space is to be considered, as occurs in a melter gasifier and causes a high load on all installations.
  • the spreader is effectively protected against such thermal or thermo-mechanical stress, and achieves high stability.
  • the spreader has a number of nubs, which are attached to the inside of the fall leg.
  • the material is decelerated in the downpipe and charged in particular along a circular ring at a predetermined distance from a carburetor center on the fixed bed.
  • the wear-resistant knobs are mounted in the lower part of the drop tube.
  • the spreader has a chain, preferably a round link chain on.
  • the chain provides a simple and cost effective alternative to braking the material in the fall leg or slant pipe, thus producing the desired charge along the annulus.
  • the chain is made of temperature-resistant and wear-resistant material.
  • the chain has a number of scattering elements, for example knots, at predetermined distances, which preferably vary from one another.
  • the invention is further characterized by a scattering device according to the invention according to claim 8.
  • the scattering device has a number of chains, on each of which in turn a number of nodes are provided, wherein adjacent nodes are mounted in, preferably mutually different, distances.
  • the bulk material is braked and scattered, and so the resulting bulk material stream which strikes the fixed bed widens.
  • the DRI distribution is schematically outlined in a melter gasifier.
  • the melter gasifier feeds for coal 1, for DRI 6, for dust 2, for oxygen 3, and a slag and pig iron 4 and a gas discharge line 5 for the discharge of the reducing gas. Both the coal and the DRI are continuously introduced into the melter gasifier.
  • the feeder 6 of the DRI has six openings at equidistant intervals from the longitudinal axis oriented coal introduction ports in the carburetor dome, which are equipped with drop legs and inclined downcomers, respectively.
  • a single feed 6 for DRI is shown in FIG.
  • the DRI is passed through 6 drop legs each mounted in the corresponding opening on the carburetor dome, each drop leg having studs on its inner surface which serve to spread the DRI.
  • the DRI is distributed along an imaginary circle on the bed of the melter gasifier, with no DRI being charged to the center.
  • the distribution of the DRI is shown schematically in Fig. 1 , wherein the DRI distribution 7 is schematically sketched on a fixed bed. Accordingly, the scattering of the DRI in the fall legs causes an enlargement of the scattering radius of the DRI on the fixed bed, with the individual bulk surfaces partially overlapping. The scattering results in a uniform distribution and in particular a better mixing of the DRI with the coal introduced.
  • FIG. 2 schematically shows a device for conducting and spreading the DRI. It is a fall leg 8, on whose inner surface a plurality of knobs 9 are attached. If the DRI is passed through this fall leg, it is deflected by the knobs and braked.
  • Such parts of the device shown here which are experience exposed to a particular wear-related stress, are additionally protected by armor, for example by welding.
  • a spreader as used for example in a melter gasifier for introducing the DRI on the fixed bed, can be seen.
  • one or more chains 13 are attached in a fall leg 10 via a suitable attachment 11 in a protective tube 12 .
  • the chains comprise a plurality of nodes according to a preferred embodiment. Preferably, the distances of the nodes vary to each other.
  • the bulk material, which is introduced via a feed line 14 in the fall leg 10 is braked by the chains or the nodes of the chains and subjected to scattering.

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)
  • Manufacture And Refinement Of Metals (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Chutes (AREA)
  • Discharge Of Articles From Conveyors (AREA)
  • Manufacture Of Iron (AREA)
  • Vending Machines For Individual Products (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
EP01969651A 2000-09-22 2001-08-27 Vorrichtung zum verteilen eines stückigen schüttgutes Expired - Lifetime EP1325156B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0161200A AT409140B (de) 2000-09-22 2000-09-22 Verfahren und vorrichtung zum verteilen eines stückigen schüttgutes
AT16122000 2000-09-22
PCT/EP2001/009852 WO2002027041A2 (de) 2000-09-22 2001-08-27 Verfahren und vorrichtung zum verteilen eines stückigen schüttgutes

Publications (2)

Publication Number Publication Date
EP1325156A2 EP1325156A2 (de) 2003-07-09
EP1325156B1 true EP1325156B1 (de) 2007-02-14

Family

ID=3688441

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01969651A Expired - Lifetime EP1325156B1 (de) 2000-09-22 2001-08-27 Vorrichtung zum verteilen eines stückigen schüttgutes

Country Status (20)

Country Link
US (2) US7059818B2 (pt)
EP (1) EP1325156B1 (pt)
JP (1) JP2004510121A (pt)
KR (1) KR100815377B1 (pt)
CN (1) CN100347506C (pt)
AT (2) AT409140B (pt)
AU (2) AU8983801A (pt)
BR (1) BR0113935B1 (pt)
CA (1) CA2420533C (pt)
CZ (1) CZ2003817A3 (pt)
DE (1) DE50112046D1 (pt)
MX (1) MXPA03002143A (pt)
MY (1) MY142749A (pt)
PL (1) PL196447B1 (pt)
RU (1) RU2272076C2 (pt)
SK (1) SK287155B6 (pt)
TW (1) TW550290B (pt)
UA (1) UA74209C2 (pt)
WO (1) WO2002027041A2 (pt)
ZA (1) ZA200301707B (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100985372B1 (ko) * 2003-07-09 2010-10-04 주식회사 포스코 용광로 장입 분배슈트의 구동장치
CN118532941B (zh) * 2024-07-26 2024-09-27 山西恒科新材料科技有限公司 一种竖式石墨化炉

Family Cites Families (32)

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USRE23825E (en) * 1954-05-11 Rotary drum apparatus and means
US2646407A (en) * 1953-07-21 Art of handling fluent particles
US1988676A (en) * 1930-09-17 1935-01-22 Andreas Arno Turbine for filling bags with finely divided materials
US2246723A (en) * 1939-04-10 1941-06-24 Delivuk Louis Combined elevator and pneumatic grain cleaner
US2318881A (en) * 1941-04-05 1943-05-11 Mundy Grain Trimmers Patents L Grain trimming devie
US2837194A (en) * 1956-07-30 1958-06-03 Ross William Feeding and controlling the flow of granular materials
FR1197358A (fr) * 1957-06-21 1959-11-30 Fellner & Ziegler Gmbh Perfectionnements apportés aux dispositifs d'alimentation des fours à cuve, de préférence pour la cuisson ou calcination de la chaux
FR1266362A (fr) * 1960-09-01 1961-07-07 Rheinische Kalsksteinwerke G M Dispositif rotatif de chargement d'une cuve, en particulier d'un four à cuve
FR1367391A (fr) * 1963-08-30 1964-07-17 Dispositif de chargement pour fours à cuves
DE2335681A1 (de) * 1973-07-13 1975-01-30 Buehler Miag Gmbh Rundsiloanlage zum speichern von schuettgut
US3885684A (en) * 1974-06-27 1975-05-27 Lester R Mitchell Silage spreader
LU72956A1 (pt) * 1975-07-11 1976-02-04
US4029220A (en) * 1975-11-28 1977-06-14 Greaves Melvin J Distributor means for charging particulate material into receptacles
US4040529A (en) * 1976-05-17 1977-08-09 Wurdeman Marion E Grain flow propelled grain spreader
LU77547A1 (pt) * 1977-06-16 1977-09-19
JPS5446805A (en) * 1977-09-16 1979-04-13 Eidai Co Ltd Production of decorative board by binding wood veneer
CA1208256A (en) * 1979-03-20 1986-07-22 Vilnis Silins Method of protecting a metallic surface susceptible to abrasion by rock-like material
SE441865B (sv) * 1981-03-10 1985-11-11 Skf Steel Eng Ab Anordning for att uppifran tillfora styckeformigt material till ett schakt
AU543793B2 (en) * 1981-09-09 1985-05-02 K.K. Ishida Koki Seisakusho Preventing adhesion of weighed material
US4411578A (en) * 1981-09-25 1983-10-25 Aggregates Equipment, Inc. Shuttle spreading conveyor
JPS59104406A (ja) * 1982-12-07 1984-06-16 Ishikawajima Harima Heavy Ind Co Ltd 粉粒状被処理剤の装入装置
LU87341A1 (fr) * 1988-09-22 1990-04-06 Wurth Paul Sa Installation de chargement d'un four a cuve
JPH04236705A (ja) * 1991-01-16 1992-08-25 Nkk Corp 高炉の炉頂中心部へのコ−クス装入方法
US5413537A (en) * 1994-07-07 1995-05-09 Hume; Daniel A. Positive drive system
DE29515419U1 (de) * 1995-07-14 1995-11-16 Zeisel, Peter, Dipl.-Ing., 44791 Bochum Drehschurre zum Beschicken eines Schachtofens
JP3772377B2 (ja) * 1996-03-14 2006-05-10 Ｊｆｅスチール株式会社 高炉用ベルレス式炉頂装入装置の旋回シュート
JPH1046220A (ja) 1996-08-02 1998-02-17 Sumitomo Metal Ind Ltd 高炉の分配シュート
US5836362A (en) * 1997-07-15 1998-11-17 Praxair Technology, Inc. Multiple adsorbent loading method and apparatus for a radial flow vessel
ATE263726T1 (de) * 1999-01-20 2004-04-15 Totalfinaelf France Vorrichtung zum dispergieren von schüttgut im innenraum eines behälters
DE19929180C2 (de) * 1999-06-25 2001-08-09 Zimmermann & Jansen Gmbh Beschickungsvorrichtung für einen Schachtofen
US6471029B1 (en) * 2000-06-07 2002-10-29 Steve Pierce Method and apparatus for distributing particles such as grain
KR100889502B1 (ko) * 2002-11-29 2009-03-19 주식회사 포스코 정련로의 중더스트 처리 방법 및 처리장치

Also Published As

Publication number Publication date
KR20030045080A (ko) 2003-06-09
US7513729B2 (en) 2009-04-07
ATA16122000A (de) 2001-10-15
ZA200301707B (en) 2004-03-01
UA74209C2 (uk) 2005-11-15
ATE353979T1 (de) 2007-03-15
MY142749A (en) 2010-12-31
WO2002027041A3 (de) 2002-10-24
US20060182555A1 (en) 2006-08-17
KR100815377B1 (ko) 2008-03-19
MXPA03002143A (es) 2004-05-04
PL196447B1 (pl) 2008-01-31
DE50112046D1 (de) 2007-03-29
CA2420533C (en) 2009-09-22
AU2001289838B9 (en) 2007-03-01
BR0113935A (pt) 2003-07-22
AU2001289838B2 (en) 2006-06-08
US20040022621A1 (en) 2004-02-05
BR0113935B1 (pt) 2009-12-01
JP2004510121A (ja) 2004-04-02
AT409140B (de) 2002-05-27
CN100347506C (zh) 2007-11-07
PL360593A1 (en) 2004-09-20
SK287155B6 (sk) 2010-01-07
WO2002027041A2 (de) 2002-04-04
CA2420533A1 (en) 2003-03-04
CZ2003817A3 (cs) 2003-10-15
CN1462355A (zh) 2003-12-17
EP1325156A2 (de) 2003-07-09
TW550290B (en) 2003-09-01
US7059818B2 (en) 2006-06-13
SK2742003A3 (en) 2003-09-11
AU8983801A (en) 2002-04-08
RU2272076C2 (ru) 2006-03-20

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