EP0498788A1 - Einrichtung zur thermischen Behandlung und/oder zum Durchgasen von körnigen Stoffen - Google Patents

Einrichtung zur thermischen Behandlung und/oder zum Durchgasen von körnigen Stoffen Download PDF

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Publication number
EP0498788A1
EP0498788A1 EP92890022A EP92890022A EP0498788A1 EP 0498788 A1 EP0498788 A1 EP 0498788A1 EP 92890022 A EP92890022 A EP 92890022A EP 92890022 A EP92890022 A EP 92890022A EP 0498788 A1 EP0498788 A1 EP 0498788A1
Authority
EP
European Patent Office
Prior art keywords
grate
support elements
side walls
gas
frame
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.)
Ceased
Application number
EP92890022A
Other languages
German (de)
English (en)
French (fr)
Inventor
Harald Ing. Fürschuss
Erwin Ing. Zwittag
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.)
Voestalpine Stahl GmbH
Voestalpine Stahl Linz GmbH
Original Assignee
Voestalpine Stahl GmbH
Voestalpine Stahl Linz 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 Voestalpine Stahl GmbH, Voestalpine Stahl Linz GmbH filed Critical Voestalpine Stahl GmbH
Publication of EP0498788A1 publication Critical patent/EP0498788A1/de
Ceased legal-status Critical Current

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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
    • 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
    • F27B19/00—Combinations of furnaces of kinds not covered by a single preceding main group
    • 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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/16—Sintering; Agglomerating
    • C22B1/20—Sintering; Agglomerating in sintering machines with movable grates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/06—Chambers, containers, or receptacles
    • F26B25/08—Parts thereof
    • F26B25/10—Floors, roofs, or bottoms; False bottoms
    • 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
    • F27B21/00—Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction
    • F27B21/02—Sintering grates or tables

Definitions

  • the invention relates to a device for thermal treatment and / or for the gasification of granular substances, in particular for drying, burning and / or sintering of finely divided raw materials to be used in the iron industry, with a grate for receiving the substances to be treated, one arranged below the grate Suction box, which is formed by suction box walls which extend downward from side edges of the grate, and with gas-impermeable support elements which adjoin the side edges of the grate and lie approximately in the plane of the grate.
  • a device of this type in which a sintered grate is realized by a grate belt, is known from DE-C 563 859.
  • the shrinkage takes place three-dimensionally, the horizontal shrinkage with crack formation in the sinter cake, in particular due to the formation of gaps to the lateral boundaries, having an adverse effect on the process.
  • the gap which progresses in the course of the sintering process following the sintered front, enables easier passage of the air or oxygen mixtures necessary for the combustion of the solid fuel (carbon content) in the bed.
  • the increased gas throughput at the edges leads the sintered front to advance over the zones near the center, but to a limited extent also to the formation of raw material (unsintered material) by tearing off the firing front or due to the increased gas supply (mostly air) Burning out the fuel without actual sintering.
  • the described processes make the quality of the sinter cake uneven and delay the final completion of the sintering process.
  • the energy of the introduced fuel is insufficiently used and a good part of the sucked-in gas mixtures (15 to 20%) has to be promoted at no cost without benefit or even dilutes the concentrations of the valuable or pollutants in the exhaust gas quantities, which makes any subsequent gas treatment more inefficient.
  • DE-B - 17 58 983 relates to a sintering device in which grate plates are arranged between side chain links.
  • the chain links lying inside the suction box cause a narrowing of the cross section of the suction box and thus a reduction in efficiency, so that this known sintering device has the same mode of operation and the disadvantages known from DE-C 3 446 845.
  • the invention aims at avoiding these disadvantages and difficulties and has as its object one To create device of the type described in the introduction, in which the edge areas are penetrated evenly at a greater dumping height, so that the materials lying in the edge area after treatment are largely of the same quality as the materials arranged centrally on the grate.
  • an increase in the system performance with a simultaneous reduction in the specific consumption data - electric blower energy and coke charge in the bed - with a simultaneous equalization of the quality of the treated goods over the entire bed cross section.
  • the device is provided with side walls extending upwards from the grate and these side walls connect to the outer edges of the support elements.
  • the support elements are preferably each fastened to a frame part supporting the grate and the side walls are supported on the support elements.
  • the side walls are each fastened to a frame part flanged to the frame supporting the grate at a distance from the grate and the support elements are inserted between the grate and the side walls and are also loosely fastened to the frame parts.
  • the ends of the frame supports supporting the grate expediently extend over the frame parts, are covered by the support elements and secured or fixed in position by bolts.
  • the width of a support surface is advantageously 10 to 35 cm and the adjoining side wall extends approximately twice as high.
  • the width of the support surface will be up to 35 cm for small grate areas and low bed heights and 10 cm for wide sintered grates.
  • FIGS. 1 to 3 each showing an embodiment of an edge region of a sintering device in cross section.
  • a sintered grate 1 has a suction box 2 arranged below the sintered grate, but directly adjoining the sintered grate 1, which is formed by suction box walls 4 extending downward from the side edges 3 of the sintered grate 1 which a suction fan, not shown, is connected.
  • the sintered grate 1 is adjoined on each side edge 3 by a support element 5 extending approximately in the plane of the sintered grate 1, which is formed by a gas-impermeable plate 6 on which the granular material 7 to be treated or the material 7 to be treated is approximately the same Dumping height 8 as on the sintered grate 1.
  • each outer edge 9 of a support element 5 there is an upwardly extending side wall 10, which laterally supports the bed of the material 7 to be treated, which is applied to the sintering grate 1, at least in the initial phase of the treatment.
  • the shrinkage described above is formed and thus a gap 11 is formed on the side walls 10.
  • the sintered grate is supported on a frame 12 surrounding it.
  • This frame 12 further supports laterally over the frame 12 outwardly projecting support elements 5, on the outer edge 9 of which the side walls 10 extending from the plane of the sintered grate 1 are fastened.
  • Both the support element 5 and the side wall 10 can each be protected with a heat insulator.
  • FIG 3 shows a modified embodiment in which the frame carrier 13 of the sintered grate 1 is attached to an outwardly projecting flange 14 of the frame 12 are supported.
  • the side wall 10 is fastened to this flange 14 on a part 15 projecting over the support elements 5, so that there is a distance A between the side wall and the sintered grate.
  • the support element 5 is fastened to the frame 12 by means of bolts 16 which pass through the side wall 10.
  • the sintering device according to the invention can be used in all processes in which marginal effects - such as an uneven penetration of the permeable bed due to marginality - are to be avoided or at least reduced for economic and ecological reasons when gassing through grates (including on pellet burning machines using the traveling grate process).
  • the device according to the invention can be used in the iron industry to prepare the fine-grained raw materials for blast furnace use and also in the sintering roasting of sulfidic raw materials or in the production of cement clinker.
  • the sintering grate can be designed in various ways, such as e.g. for grate wagons and grate pans.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Metallurgy (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Manufacture Of Iron (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Drying Of Solid Materials (AREA)
  • Treatment Of Sludge (AREA)
EP92890022A 1991-02-05 1992-01-27 Einrichtung zur thermischen Behandlung und/oder zum Durchgasen von körnigen Stoffen Ceased EP0498788A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0024291A AT395353B (de) 1991-02-05 1991-02-05 Einrichtung zur thermischen behandlung und/oder zum durchgasen von koernigen stoffen
AT242/91 1991-02-05

Publications (1)

Publication Number Publication Date
EP0498788A1 true EP0498788A1 (de) 1992-08-12

Family

ID=3485332

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92890022A Ceased EP0498788A1 (de) 1991-02-05 1992-01-27 Einrichtung zur thermischen Behandlung und/oder zum Durchgasen von körnigen Stoffen

Country Status (12)

Country Link
EP (1) EP0498788A1 (ja)
JP (1) JP2538158B2 (ja)
KR (1) KR960004798B1 (ja)
AT (1) AT395353B (ja)
CZ (1) CZ277800B6 (ja)
GE (1) GEP20002101B (ja)
HU (1) HU210378B (ja)
PL (1) PL166627B1 (ja)
SI (1) SI9210095A (ja)
SK (1) SK277901B6 (ja)
TR (1) TR25875A (ja)
UA (1) UA22112C2 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT408664B (de) * 2000-02-29 2002-02-25 Voest Alpine Ind Anlagen Vorrichtung und verfahren zum kühlen von körnigen stoffen
EP3348942A1 (en) * 2017-01-17 2018-07-18 Paul Wurth S.A. Side wall of a pallet car for a travelling grate machine, pallet car comprising such a side wall and method for converting a pallet car

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100950959B1 (ko) * 2002-12-26 2010-04-02 주식회사 포스코 소결기 대차에서의 가스 불투과성 맹판을 이용한 누풍방지 장치
AT7072U3 (de) * 2004-03-17 2005-01-25 Voest Alpine Ind Anlagen Umbauverfahren

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE563859C (de) * 1931-02-11 1932-11-10 Metallgesellschaft Ag Bandsinterapparat
DE1006163B (de) * 1952-10-29 1957-04-11 Metallgesellschaft Ag Verfahren und Vorrichtung zur Verbesserung der Betriebsbedingungen bei Saugzug-Sinterbaendern
US2834593A (en) * 1955-05-23 1958-05-13 Armco Steel Corp Pallet for sintering machines
DE1758983B1 (de) * 1968-09-11 1973-08-09 Knapsack Ag Sintereinrichtung
US4289485A (en) * 1979-08-15 1981-09-15 Koppers Company, Inc. Sinter machine-pelletizing machine wear and baffle plate for pallet side plate
DE3446845C1 (de) * 1984-12-19 1986-07-24 Mannesmann AG, 4000 Düsseldorf Vorrichtung zur Beseitigung der Randgängigkeit von Saugzugsinteranlagen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1169336A (en) * 1913-10-14 1916-01-25 United Iron And Steel Company Sintering device.
US1098035A (en) * 1913-12-06 1914-05-26 John E Greenawalt Grates for sintering-pans.
US1471402A (en) * 1919-10-27 1923-10-23 Dwight & Lloyd Sintering Compa Pallet mechanism for ore-sintering machines
US2764403A (en) * 1954-10-21 1956-09-25 William M Duncan Pallets and grate bar therefor
JPS515968B2 (ja) * 1972-03-01 1976-02-24

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE563859C (de) * 1931-02-11 1932-11-10 Metallgesellschaft Ag Bandsinterapparat
DE1006163B (de) * 1952-10-29 1957-04-11 Metallgesellschaft Ag Verfahren und Vorrichtung zur Verbesserung der Betriebsbedingungen bei Saugzug-Sinterbaendern
US2834593A (en) * 1955-05-23 1958-05-13 Armco Steel Corp Pallet for sintering machines
DE1758983B1 (de) * 1968-09-11 1973-08-09 Knapsack Ag Sintereinrichtung
US4289485A (en) * 1979-08-15 1981-09-15 Koppers Company, Inc. Sinter machine-pelletizing machine wear and baffle plate for pallet side plate
DE3446845C1 (de) * 1984-12-19 1986-07-24 Mannesmann AG, 4000 Düsseldorf Vorrichtung zur Beseitigung der Randgängigkeit von Saugzugsinteranlagen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT408664B (de) * 2000-02-29 2002-02-25 Voest Alpine Ind Anlagen Vorrichtung und verfahren zum kühlen von körnigen stoffen
EP3348942A1 (en) * 2017-01-17 2018-07-18 Paul Wurth S.A. Side wall of a pallet car for a travelling grate machine, pallet car comprising such a side wall and method for converting a pallet car
WO2018134194A1 (en) * 2017-01-17 2018-07-26 Paul Wurth S.A. Side wall of a pallet car for a travelling grate machine, pallet car comprising such a side wall and method for converting a pallet car
CN110199167A (zh) * 2017-01-17 2019-09-03 保罗沃思公司 用于移动炉排机的托盘车的侧壁、包括这种侧壁的托盘车以及用于转换托盘车的方法
EA036475B1 (ru) * 2017-01-17 2020-11-13 Поль Вурт С.А. Боковая стенка спекательной тележки для конвейерной колосниковой машины, спекательная тележка, включающая в себя такую боковую стенку, и способ преобразования спекательной тележки

Also Published As

Publication number Publication date
SK277901B6 (en) 1995-07-11
AT395353B (de) 1992-12-10
HUT60383A (en) 1992-08-28
UA22112C2 (uk) 1998-04-30
JPH0571879A (ja) 1993-03-23
KR960004798B1 (ko) 1996-04-13
HU9200270D0 (en) 1992-04-28
CS33192A3 (en) 1992-09-16
PL166627B1 (pl) 1995-06-30
KR920016176A (ko) 1992-09-24
JP2538158B2 (ja) 1996-09-25
GEP20002101B (en) 2000-05-10
ATA24291A (de) 1992-04-15
PL293376A1 (en) 1992-08-10
HU210378B (en) 1995-04-28
SI9210095A (sl) 1994-06-30
CZ277800B6 (en) 1993-04-14
TR25875A (tr) 1993-09-01

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