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EP2486159B1 - Sinterkühler mit einstellbarer kühlgasdichtung - Google Patents

Sinterkühler mit einstellbarer kühlgasdichtung Download PDF

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Publication number
EP2486159B1
EP2486159B1 EP10755100.4A EP10755100A EP2486159B1 EP 2486159 B1 EP2486159 B1 EP 2486159B1 EP 10755100 A EP10755100 A EP 10755100A EP 2486159 B1 EP2486159 B1 EP 2486159B1
Authority
EP
European Patent Office
Prior art keywords
sinter
cooling
sealing
cooler according
sealing elements
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
EP10755100.4A
Other languages
English (en)
French (fr)
Other versions
EP2486159A1 (de
Inventor
Alan Chambers
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.)
Outotec Finland Oy
Original Assignee
Outotec Finland Oy
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 Outotec Finland Oy filed Critical Outotec Finland Oy
Publication of EP2486159A1 publication Critical patent/EP2486159A1/de
Application granted granted Critical
Publication of EP2486159B1 publication Critical patent/EP2486159B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • C22B1/26—Cooling of roasted, sintered, or agglomerated ores
    • 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
    • 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
    • F27B21/04—Sintering pots or sintering pans
    • 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
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0073—Seals

Definitions

  • This invention relates to a sinter cooler for use in metallurgy, comprising a cooling-air chamber and a sinter cooling chamber including a perforated plate, which can travel over the same, and comprising a cooling gas seal between the upper surface of the cooling-air chamber and the lower surface of the sinter cooling chamber.
  • US 4 238 120 discloses a sinter cooler comprising a cooling-air chamber and a sintering cooling chamber and a cooling gas seal between the upper surface of the cooling-air chamber and the lower surface of the sintering cooling chamber.
  • cooling gas seal as a stationary sealing support of the cooling-air chamber wall for sealing elements of elastomeric material carried along with the sinter cooling chamber includes a sealing strip with round, preferably circular cross-section.
  • Ring in the sense of the present invention should cover all rounded, i.e. both circular and oval sealing strips, but also profiles with a substantially rectangular cross-section, which in any case on their side facing the sealing elements of the traveling sinter cooling chamber are distinctly rounded or at least beveled to reduce the contact surface with the sealing elements.
  • sealing strip e.g. inexpensive commercially available metallic strand material can be used.
  • the sealing strip is arranged on the upper surface of a stationary sealing plate of the cooling-air chamber wall and in particular provided to be replaceable.
  • the part of the cooling gas seal carried along with the sinter cooling chamber includes sealing elements of a preferably heat-resistant elastomeric material, which are mounted with a vertical play such that they are seated on the sealing strip and slide along the sealing strip during the travel of the sinter cooling chamber.
  • Such seal is self-compensating, because in the case of the end-face wear of the sealing elements, the same automatically maintain their sealing function with respect to the sealing support by readjustment. In this way, the service life of the cooling gas seal is improved considerably.
  • the sealing elements are mounted in a vertically movable manner by means of a possibly weight-loaded holder and a guide pin.
  • the weight load can provide a sufficient contact pressure of the sealing elements on the sealing strip of the stationary cooling-air chamber wall, without impairing the slidability.
  • the guide pins can be received in possibly angular and releasable brackets of the sinter cooling chamber wall.
  • the respective, possibly two-part sealing element holder overlaps the associated sealing element e.g. in the manner of a framework, preferably in a roof-like manner with corresponding inclined surfaces, so that fine sinter dust easily can slip off downwards.
  • the end face of the sealing elements is formed with such a width that even in the case of lateral displacements of the traveling sinter cooling chamber they will always rest on the sealing strip.
  • the sealing elements preferably are made of a wear-resistant, creep-resistant polymer having good sliding properties, in particular of ultra-high molecular weight polyethylene, whereas in their upper region they are made of a polymer that bonds well to metal, in particular of ultra-high molecular weight polyethylene.
  • the two polymer components should also be easily connectable with each other, e.g. by bonding or by co-extrusion.
  • a sinter cooler including the invention as shown in the Figures is part of a sintering plant for use in metallurgy. It serves to cool the lumpy sintered ore to be supplied to a blast furnace by means of cooling air and to supply the recovered thermal energy of the hot waste air for example to another load.
  • the sinter cooler has a cooling-air chamber 1 and a sinter cooling chamber 3 for the hot sinter material accommodated therein, which for example by means of bogie wheels 9 can travel over the same on a rail track 17, 19 and includes a perforated or slotted plate 2 for the supply of cooling air.
  • a cooling gas seal 4 is provided between the upper surface of the cooling-air chamber 1 and the lower surface of the sinter cooling chamber 3.
  • the upper portion of the cooling-air chamber wall 7 is formed by stationary sealing plates 18 on whose upper surface a sealing strip 5 with round, preferably circular cross-section is arranged as a stationary sealing support.
  • the part of the cooling gas seal 4 carried along with the sinter cooling chamber 3 includes sealing elements 6 of an elastomeric material.
  • the sealing elements 6 are mounted with a vertical play such that they are seated on the upper surface of the sealing strip 5 substantially round in cross-section of the stationary vertical cooling-air chamber wall 7, and during travel of the sinter cooling chamber 3 slide along the sealing strip 5.
  • the sealing elements 6 are arranged behind a protective side wall 8 of the sinter cooling chamber 3 such that they are protected against sinter dust and heat.
  • the sealing elements 6 are mounted in a vertically movable manner by means of a possibly weight-loaded holder 12 and a guide pin 10, so that they can compensate a possible wear by automatic readjustment.
  • the upper head 21 of the guide pin 10 forms a stop when the sealing elements 6 have reached their maximum of admissible wear.
  • the guide pins 10 are received in angular, possibly releasable brackets 11 in a vertically movable manner, wherein the through holes through which the guide pins 10 are passed are large enough to provide for freely shifting the sealing elements 6 with respect to the sealing strip 5.
  • the holders 12 overlap the associated sealing element 6 in a roof-like manner by forming corresponding inclined surfaces, so that sinter dust obtained is easily discharged downwards.
  • the end face 16 of the respective sealing elements 6 is formed with such a width that it will always rest on the sealing strip 5, even in the case of a lateral displacement of the traveling sinter cooling chamber 3 by e.g. ⁇ 25 mm.
  • the end faces 16 have a width of about 4 to 12 cm.
  • the sealing elements 6 can be formed in their lower region of another wear-resistant, creep-resistant polymer having good sliding properties and in their upper region of a polymer that bonds well to metal.
  • the polymers expediently should be selected such that they can easily be connected with each other, e.g. by bonding or by co-extrusion. It is, however, less expensive to use only one single material for the sealing elements.
  • ultra-high molecular weight polyethylenes are used for manufacturing the sealing elements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Furnace Details (AREA)
  • Powder Metallurgy (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Cell Electrode Carriers And Collectors (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Tunnel Furnaces (AREA)

Claims (9)

  1. Sinterkühler einer Sinteranlage für den Einsatz in der Metallurgie, mit einer Kühlluftkammer (1) und einer über diese verfahrbaren, einen Lochboden (2) aufweisenden Sinterkühlkammer (3) sowie mit einer Kühlgasabdichtung (4) zwischen der Oberseite der Kühlluftkammer (1) und der Unterseite der Sinterkühlkammer (3), dadurch gekennzeichnet, dass die Kühlgasabdichtung (4) als stationäres Dichtauflager der Kühlluftkammerwand (7) für mit der Sinterkühlkammer (3) mitgeführte Dichtelemente (6) aus elastomerem Material eine Dichtleiste (5) mit im Wesentlichen rundem, vorzugsweise kreisrundem Querschnitt aufweist.
  2. Sinterkühler nach Anspruch 1, dadurch gekennzeichnet, dass die Dichtleiste (5) auf der Oberseite einer stationären Dichtplatte (18) der Kühlluftkammerwand (7) angeordnet ist.
  3. Sinterkühler nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der mit der Sinterkühlkammer (3) mitgeführte Teil der Kühlgasabdichtung (4) Dichtelemente (6) aus elastomerem Material aufweist, welche so mit vertikalem Spiel gelagert sind, dass sie auf der Dichtleiste (5) aufsitzen und beim Verfahren der Sinterkühlkammer (3) auf der Dichtleiste (5) entlang gleiten.
  4. Sinterkühler nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Dichtelemente (6) mittels eines ggf. gewichtbelasteten Halters (12) und eines Führungsbolzens (10) höhenverschieblich gelagert sind.
  5. Sinterkühler nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Führungsbolzen (10) in ggf. winkelartigen Trägern (11) an der Sinterkühlkammerwand (14) aufgenommen sind.
  6. Sinterkühler nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der jeweilige Dichtelementhalter (12) das zugehörige Dichtelement (6) dachartig mit entsprechenden Schrägflächen übergreift.
  7. Sinterkühler nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Stirnfläche (16) der Dichtelemente (6) so breit ausgebildet ist, dass sie auch bei seitlichen Ausweichungen der fahrenden Sinterkühlkammer (3) immer auf der Dichtleiste (5) aufliegen.
  8. Sinterkühler nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Dichtelemente (6) in ihrem unteren Bereich aus einem verschleißfesten, kriechfesten und gute Gleiteigenschaften aufweisenden Polymer bestehen.
  9. Sinterkühler nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Dichtelemente (6) in ihrem oberen Bereich aus einem mit Metall gut verbindbaren Polymer bestehen.
EP10755100.4A 2009-10-08 2010-09-08 Sinterkühler mit einstellbarer kühlgasdichtung Not-in-force EP2486159B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910048722 DE102009048722A1 (de) 2009-10-08 2009-10-08 Sinterkühler
PCT/EP2010/005520 WO2011042102A1 (en) 2009-10-08 2010-09-08 Sinter cooler with adjustable cooling gas seal

Publications (2)

Publication Number Publication Date
EP2486159A1 EP2486159A1 (de) 2012-08-15
EP2486159B1 true EP2486159B1 (de) 2016-01-27

Family

ID=43304152

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10755100.4A Not-in-force EP2486159B1 (de) 2009-10-08 2010-09-08 Sinterkühler mit einstellbarer kühlgasdichtung

Country Status (9)

Country Link
EP (1) EP2486159B1 (de)
AU (1) AU2010305133B2 (de)
BR (1) BR112012007982A2 (de)
DE (1) DE102009048722A1 (de)
EA (1) EA020678B1 (de)
ES (1) ES2568646T3 (de)
UA (1) UA103112C2 (de)
WO (1) WO2011042102A1 (de)
ZA (1) ZA201202057B (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102865743B (zh) * 2012-10-23 2014-06-04 中冶长天国际工程有限责任公司 用于烧结设备中点火炉与台车之间的密封装置及方法
CN106959016B (zh) * 2016-01-08 2019-03-05 宝山钢铁股份有限公司 一种滑槽式环冷机台车上部密封装置
CN106482528A (zh) * 2016-11-11 2017-03-08 攀钢集团西昌钢钒有限公司 一种烧结环冷机密封装置
CN109612281B (zh) * 2016-11-29 2020-07-07 安徽工业大学 一种烧结冷却机

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2844227C2 (de) * 1978-10-11 1987-03-26 Metallgesellschaft Ag, 6000 Frankfurt Rundkühler für heißes stückiges Material
DE3037222A1 (de) * 1980-10-02 1982-04-29 TKV Transportanlagen - Konstruktions- und Vertriebs-Gesellschaft mbH, 6380 Bad Homburg Vorrichtung zur thermischen behandlung von stueckigem gut in umlaufenden troegen mit gasdurchlaessigen boeden
JPS5877537A (ja) * 1981-11-04 1983-05-10 Nagata Seisakusho:Kk 焼結鉱冷却機の漏風防止方法
JPS5913891A (ja) * 1982-07-15 1984-01-24 三菱重工業株式会社 火格子機械の密封装置
US5148687A (en) * 1990-09-28 1992-09-22 Hitachi Zosen Corporation Cooling apparatus for bulk material
JP3146151B2 (ja) * 1996-04-04 2001-03-12 中外炉工業株式会社 ストリップ用炉のシール装置
KR100435484B1 (ko) * 1999-12-28 2004-06-10 주식회사 포스코 소결기 대차의 슬라이딩 씰 장치
CN201032376Y (zh) * 2007-04-05 2008-03-05 中冶长天国际工程有限责任公司 环冷机台车下部密封装置

Also Published As

Publication number Publication date
WO2011042102A1 (en) 2011-04-14
BR112012007982A2 (pt) 2016-03-29
ZA201202057B (en) 2013-05-29
EA201290180A1 (ru) 2012-11-30
UA103112C2 (uk) 2013-09-10
DE102009048722A1 (de) 2011-04-21
EP2486159A1 (de) 2012-08-15
EA020678B1 (ru) 2014-12-30
ES2568646T3 (es) 2016-05-03
AU2010305133B2 (en) 2015-01-22
AU2010305133A1 (en) 2012-04-26

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