EP1725821B1 - Procédé de transformation d'un chariot à grille et chariot à grille - Google Patents

Procédé de transformation d'un chariot à grille et chariot à grille Download PDF

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Publication number
EP1725821B1
EP1725821B1 EP05715827.1A EP05715827A EP1725821B1 EP 1725821 B1 EP1725821 B1 EP 1725821B1 EP 05715827 A EP05715827 A EP 05715827A EP 1725821 B1 EP1725821 B1 EP 1725821B1
Authority
EP
European Patent Office
Prior art keywords
grate
pallet
longitudinal
walls
fine
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.)
Not-in-force
Application number
EP05715827.1A
Other languages
German (de)
English (en)
Other versions
EP1725821A1 (fr
Inventor
Oskar Pammer
Karl Laaber
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
Primetals Technologies Austria 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 Primetals Technologies Austria GmbH filed Critical Primetals Technologies Austria GmbH
Publication of EP1725821A1 publication Critical patent/EP1725821A1/fr
Application granted granted Critical
Publication of EP1725821B1 publication Critical patent/EP1725821B1/fr
Anticipated expiration legal-status Critical
Not-in-force 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
    • F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
    • F27D15/02—Cooling
    • F27D15/0206—Cooling with means to convey the charge
    • F27D15/0213—Cooling with means to convey the charge comprising a cooling grate
    • F27D15/022—Cooling with means to convey the charge comprising a cooling grate grate plates
    • 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
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H11/00—Travelling-grates
    • F23H11/18—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H13/00—Grates not covered by any of groups F23H1/00-F23H11/00
    • F23H13/02—Basket grates, e.g. with shaking arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H17/00—Details of 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
    • F26B25/063—Movable containers or receptacles, e.g. carts, trolleys, pallet-boxes
    • 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
    • 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
    • F26B25/14—Chambers, containers, receptacles of simple construction
    • F26B25/18—Chambers, containers, receptacles of simple construction mainly open, e.g. dish, tray, pan, rack
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F26B5/12—Drying solid materials or objects by processes not involving the application of heat by suction
    • 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
    • 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
    • F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
    • F27D15/02—Cooling

Definitions

  • the invention relates to a method for the conversion of a device for the thermal treatment of fine-grained substances, in particular a device for drying, firing and / or sintering of fine-grained in the iron industry to be used raw materials, with a grate for receiving the substances to be treated, to increase the capacity.
  • the maximum amount of material to be treated on the grate is essentially limited by the height of the side walls, the grate surface and the power with which treatment gas can be sucked through the bed of granular material.
  • the grate is formed by individual grate bars which are hooked in the region of the upper side of the transverse walls and stiffening ribs extending transversely to the grate carriage longitudinal direction, or in the insulating pieces usually arranged there.
  • the grate carriages form the essential part of the traveling grate of a traveling grate sintering machine or a traveling grate pellet burning machine.
  • the subject invention also makes the application of gas-impermeable support elements, or the associated capacity expansion advantage, but another essential aspect is the conversion of the suction box, especially the replacement of parts of the vertical Saugkastenarea by obliquely upward sloping suction box walls to call.
  • the embodiment of the invention described above is directed to the conversion of a device in which the suction box is connected directly to the grate downwards.
  • Devices of this type usually have no traveling grate, but have a stationary grate, such as sinter pans.
  • the inventive method is carried out such that the upwardly inclined upper parts of the Saugkastenrent with the vertical include an angle of 30-60, preferably 45 °.
  • opposite Saugkastenreheat be completely removed and replaced by Saugkasten4, each having a vertical lower and an upwardly inclined upper part.
  • the height of the removed upper part of the Saugkastenrent is preferably 1/30 to 1/5 of the width of the original grate.
  • this ultimately a broadening of the gasifiable surface is also achieved in the extent of 1/30 to 1/5 of the width of the original grate.
  • the width of the gas-impermeable support elements is preferably also 1/30 to 1/5 of the width of the original grate. Overall, the interaction of both measures results in a rust spread of 10 to 40%. These details relate to grate carriages with a width of, for example, 4 m, which have been widened to 5 m by the method according to the invention. In some cases, the achievable widening may still be higher.
  • Another embodiment of the method according to the invention is directed to the conversion of a plant with a traveling grate. Such plants described in the beginning make the greatest proportion of sintering or pellet burning plants in terms of capacity.
  • This further embodiment of the method according to the invention therefore relates to a method for the conversion of a plant for the thermal treatment of fine-grained substances, in particular a device for drying, firing and / or sintering of fine-grained in the iron industry to be used raw materials, with a traveling grate, which traveling grate of a plurality of Roof carriage is formed, each grate a grate, an underlying grate car body is formed with two opposite substantially vertical longitudinal and transverse walls, and extending from the longitudinal sides of the grate car body upwardly extending side walls, said longitudinal and side walls substantially in alignment over each other are arranged.
  • the object according to the invention is achieved in that the grate car body each Roof trolley to be replaced by grate car body whose longitudinal walls are designed inclined at an angle upwards outward, and in which connect to the longitudinal sides of the grates outwardly projecting gas-tight support elements.
  • the width of the grate is limited by the uppermost part of the obliquely upwardly outwardly inclined longitudinal walls of the grate car body.
  • the invention therefore also relates to grate carriages with a grate car body, which is formed by two opposite longitudinal and transverse walls, arranged on the top of the grate body grate and with two opposite, extending from the longitudinal sides of the grate car body upwardly extending side walls.
  • the grate carriages according to the invention solve the problem posed by the invention in that the longitudinal walls of the grate car body are designed inclined at an angle upwards outside and connect to the longitudinal sides of the grate outwardly projecting gas-tight support elements.
  • the invention further relates to a plant for the thermal treatment of fine-grained substances, in particular a device for drying, firing and / or sintering of fine-grained in the iron industry to be used raw materials, with a traveling grate, wherein the traveling grate is formed by a plurality of grate carriage according to the invention.
  • the capacity of an existing sinter or pellet plant can by installing the new grate according to the invention - depending on the original grate width - be increased by up to about 40%, without having to change the building in which the sintering machine or the pellet-burning machine is installed, without having to change the subsequent suction or pressure system, the position rails and the execution of the support structure, and wherein the capacity of the suction and pressure system only in relation to the increased grate area (without the gas-tight area, which is additionally formed by the gas-tight plates) must be increased.
  • the specific amount of exhaust gas (Nm3 / t sinter) in the sinter plant or the specific process quantity (Nm3 / t pellet) in the pellet burning plant is significantly reduced.
  • FIG. 1 represents a vertical section through a device prior to the conversion, wherein all essential to the invention parts, such as sealing of the fan box, etc. are not shown.
  • Fig. 1 illustrated belonging to the prior art device comprises a suction box 2 , which is formed by the side of the grate 1 downwardly extending Saugkastenrentn 3 and to which a not shown suction fan is connected. With the suction fan hot treatment gas is sucked from top to bottom through the bed 4 fine-grained substances and the grate 1 .
  • gas-impermeable support elements 8 are attached to the side edges 7 of the upwardly inclined parts 3b , which are located approximately at the height of the grate 1 .
  • the gas-impermeable bearing elements 8 need not necessarily be designed as plates, but may also, for example, have a triangular cross-sectional profile.
  • a grid 10 is used, which is either made by enlarging the grate 1 or may be a new purchase.
  • the original width A of the grate 1 has been increased by twice the length projected in the horizontal lengths of the upwardly inclined parts 3b (width B), and twice the width C of the gas-impermeable support elements 8 .
  • FIG. 3 illustrated embodiment shows in a cross section through a sintering plant with traveling grate a grate carriage 11 according to the invention .
  • the grate carriage 11 has a grate carriage body 12 , which is equipped with wheels 13 .
  • a grate 14 Arranged above it is a grate 14, on the longitudinal sides of which gas-impermeable bearing elements 15 are attached. Side of the gas-impermeable support elements 15 side walls 16 are arranged.
  • Below the grate carriage body 12 is a fixed suction box 17.
  • the grate carriage body 12 shown in the figure has longitudinal walls which are inclined at an angle of 45 ° to the vertical upwards outward. As a result, the original suction surface width D is increased to the new suction surface width E. Due to the gas-impermeable support elements 15 , the width of the grate truck is widened a total of more, namely on the new grate width F.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Molecular Biology (AREA)
  • Health & Medical Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Furnace Details (AREA)
  • Tunnel Furnaces (AREA)

Claims (5)

  1. Procédé de transformation d'une installation pour le traitement thermique de matières à grains fins, notamment d'un dispositif pour le séchage, la cuisson et/ou le frittage de matières premières à grains fins à utiliser dans l'industrie sidérurgique, comprenant une grille mobile, laquelle grille mobile est formée par une pluralité de chariots à grille (11), chacun des chariots à grille (11) comportant une grille (14), au-dessous de celle-ci un corps de chariot à grille (12) avec deux parois longitudinales et deux parois transversales opposées sensiblement verticales, et des parois latérales (16) s'étendant vers le haut depuis les côtés longitudinaux des corps de chariot à grille (12), les parois longitudinales et latérales étant superposées sensiblement en alignement, caractérisé en ce que les corps de chariot à grille (12) de chaque chariot à grille sont remplacés par des corps de chariot à grille (12) dont les parois longitudinales sont inclinées vers l'extérieur suivant un angle en allant vers le haut et sur lesquels des éléments d' appui (15) étanches au gaz s'étendant vers l'extérieur se raccordent aux côtés longitudinaux des grilles (14).
  2. Chariot à grille (11) comportant un corps de chariot à grille (12) formé par deux parois longitudinales et deux parois transversales opposées, une grille (14) disposée sur le dessus du corps de chariot à grille (12) et deux parois latérales (16) s'étendant vers le haut depuis les côtés longitudinaux des corps de chariot à grille, caractérisé en ce que les parois longitudinales du corps de chariot à grille (12) sont inclinées vers l'extérieur suivant un angle en allant vers le haut et en ce que des éléments d'appui (15) étanches au gaz s'étendant vers l'extérieur se raccordent aux côtés longitudinaux de la grille (14).
  3. Chariot à grille selon la revendication 2, caractérisé en ce que les parois longitudinales du corps de chariot à grille (12) sont inclinées vers l'extérieur en allant vers le haut suivant un angle sensiblement égal à 45° par rapport à la verticale.
  4. Chariot à grille selon l'une des revendications 2 ou 3, caractérisé en ce que les éléments d'appui (15) étanches au gaz s'étendant vers l'extérieur ont une largeur pouvant aller jusqu'à 350 mm.
  5. Installation pour le traitement thermique de matières à grains fins, notamment un dispositif pour le séchage, la cuisson et/ou le frittage de matières premières à grains fins à utiliser dans l'industrie sidérurgique, comprenant une grille mobile, caractérisée en ce que la grille mobile est formée par une pluralité de chariots à grille (11) selon l'une des revendications 2 à 4.
EP05715827.1A 2004-03-17 2005-03-08 Procédé de transformation d'un chariot à grille et chariot à grille Not-in-force EP1725821B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0020504U AT7072U3 (de) 2004-03-17 2004-03-17 Umbauverfahren
PCT/EP2005/002428 WO2005093355A1 (fr) 2004-03-17 2005-03-08 Procede de transformation

Publications (2)

Publication Number Publication Date
EP1725821A1 EP1725821A1 (fr) 2006-11-29
EP1725821B1 true EP1725821B1 (fr) 2016-08-03

Family

ID=32686555

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05715827.1A Not-in-force EP1725821B1 (fr) 2004-03-17 2005-03-08 Procédé de transformation d'un chariot à grille et chariot à grille

Country Status (9)

Country Link
EP (1) EP1725821B1 (fr)
KR (1) KR20060130743A (fr)
CN (1) CN1950660A (fr)
AT (1) AT7072U3 (fr)
BR (1) BRPI0508886B1 (fr)
RU (1) RU2392553C2 (fr)
TW (1) TWI390171B (fr)
UA (1) UA48020U (fr)
WO (1) WO2005093355A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3348942A1 (fr) 2017-01-17 2018-07-18 Paul Wurth S.A. Paroi latérale d'un chariot de palette pour une machine à grille mobile, chariot de palette comprenant une telle paroi latérale et procédé permettant de convertir un chariot de palette
RU204943U1 (ru) * 2021-03-22 2021-06-21 Юрий Степанович Левчук Универсальный колосник
RU2761907C1 (ru) * 2021-03-22 2021-12-14 Юрий Степанович Левчук Универсальный колосник

Family Cites Families (8)

* 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
DE676673C (de) * 1937-10-12 1939-06-09 Metallgesellschaft Akt Ges Bandsinter- oder -roestvorrichtung
DE1032548B (de) * 1957-01-08 1958-06-19 Metallgesellschaft Ag Verfahren und Vorrichtung zum Hartbrennen von Pellets
GB820880A (en) * 1957-03-08 1959-09-30 Metallgesellschaft Ag Sealing means for a travelling grate carriage with rollers running on rails
US2997287A (en) * 1960-02-24 1961-08-22 American Brake Shoe Co Furnace pallets
DE2126569A1 (de) * 1971-05-28 1972-12-07 Koerver, Josef, 4150 Krefeld Rost, insbesondere in fahrbaren Behältern, für Sinterprozesse
AT395353B (de) * 1991-02-05 1992-12-10 Voest Alpine Stahl Einrichtung zur thermischen behandlung und/oder zum durchgasen von koernigen stoffen
RU2224197C2 (ru) * 2001-07-26 2004-02-20 Оао "Ормето-Юумз" Способ изменения конструкции агломерационной конвейерной машины и агломерационная конвейерная машина

Also Published As

Publication number Publication date
BRPI0508886A (pt) 2007-09-11
RU2392553C2 (ru) 2010-06-20
CN1950660A (zh) 2007-04-18
TW200532156A (en) 2005-10-01
WO2005093355A8 (fr) 2006-10-05
AT7072U3 (de) 2005-01-25
EP1725821A1 (fr) 2006-11-29
RU2006136417A (ru) 2008-04-27
TWI390171B (zh) 2013-03-21
WO2005093355A1 (fr) 2005-10-06
BRPI0508886B1 (pt) 2018-07-24
AT7072U2 (de) 2004-09-27
UA48020U (ru) 2010-03-10
KR20060130743A (ko) 2006-12-19

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