EP2486158B1 - Vorrichtung zum kühlen von sintermaterial mit auswechselbarem dichtungselement - Google Patents

Vorrichtung zum kühlen von sintermaterial mit auswechselbarem dichtungselement Download PDF

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Publication number
EP2486158B1
EP2486158B1 EP10755099.8A EP10755099A EP2486158B1 EP 2486158 B1 EP2486158 B1 EP 2486158B1 EP 10755099 A EP10755099 A EP 10755099A EP 2486158 B1 EP2486158 B1 EP 2486158B1
Authority
EP
European Patent Office
Prior art keywords
sinter
cooling
cooler according
sealing elements
sinter cooler
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
EP10755099.8A
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English (en)
French (fr)
Other versions
EP2486158A1 (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
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Outotec Finland Oy
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Publication date
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Priority to PL10755099T priority Critical patent/PL2486158T3/pl
Publication of EP2486158A1 publication Critical patent/EP2486158A1/de
Application granted granted Critical
Publication of EP2486158B1 publication Critical patent/EP2486158B1/de
Not-in-force legal-status Critical Current
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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
    • 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
    • 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 of a sintering plant 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 sealing device for a sinter cooler, comprising a gas seal between an upper surface of the cooling-air chamber and a lower surface of the sinter cooling chamber, wherein the gas seal includes sealing strip or block elements attached underneath a ring flange mounted on the upper edge of the cooling-air chamber and resting on a flange mounted underneath the frame of the sinter cooler chamber.
  • the cooling gas seal carried along with the sinter cooling chamber includes sealing elements of an elastomeric material, which are arranged with a vertical play such that they are seated on the lateral upper edges of the stationary vertical cooling-air chamber wall, which extend in direction of travel of the sinter cooling chamber, and during travel of the sinter cooling chamber slide along the upper edges, wherein the sealing elements are mounted in a vertically movable manner by means of a weight-loaded holder and a guide pin.
  • the sealing elements preferably are replaceable.
  • Such seal is self-compensating, because in the case of the end-face wear of the sealing elements the same maintain their sealing function with respect to the cooling-air chamber wall by automatic readjustment. In this way, the service life of the cooling gas seal is prolonged considerably. Due to the reliable sealing, operating costs are saved and the effectiveness of the cooler is improved.
  • the drive unit for the traveling sinter cooling chamber need not be dimensioned larger than before.
  • the sealing elements are arranged outside a protective side wall of the sinter cooling chamber and at the lower end thereof, whereby the sealing elements are shielded against sinter dust and heat.
  • sealing elements preferably are provided in a region inside an e.g. circular rail base of the cooling-air chamber, in order to protect the bearing of the bogie wheels of the sinter cooling chamber against sinter dust.
  • the sealing elements are mounted in a vertically movable manner by means of a possibly weight-loaded holder disposed e.g. as a kind of framework and by means of a guide pin.
  • the weight load can ensure a sufficient contact pressure of the sealing elements on the upper edge of the stationary cooling-air chamber wall, without adversely affecting the slidability.
  • the guide pins can be received in possibly angular brackets which in turn are attached to connecting plates, in particular welded to the same, wherein the connecting plates preferably are releasably connected with stiffening ribs below the sinter cooling chamber wall.
  • the respective sealing element holder overlaps the associated sealing element preferably in a roof-like manner with corresponding inclined surfaces, so that fine sinter dust easily can slip off downwards.
  • the flat smooth upper edge of the cooling-air chamber wall which possibly is formed by a stationary sealing plate of the cooling-air chamber wall, is formed with such a width that even in the case of a lateral displacement of the sinter cooling chamber, which for example moves on rails by means of bogie wheels, the sealing elements will always fully rest on the upper edge of the cooling-air chamber wall with their lower end face.
  • a plurality of sealing element portions can adhesively be bonded at their ends to form an integral sealing element.
  • the ends of the sealing element segments facing each other preferably overlap each other and form a miter.
  • the sealing elements preferably are made of a wear-resistant, creep-resistant polymer having good sliding properties, whereas in their upper region they are made of a polymer that bonds well to metal.
  • the two polymer components should also bond well to each other, e.g. by adhesion or by co-extrusion. It is, however, less expensive to use only one single material for the sealing elements.
  • the sealing elements in particular are made of an ultra-high molecular weight polyethylene (PE-UHMW).
  • PE-UHMW ultra-high molecular weight polyethylene
  • the upper edge of the cooling-air chamber wall is formed by a stationary sealing strip with round, preferably circular cross-section, in order to avoid a deposition of sinter dust and offer a small contact surface for the sealing elements.
  • 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 thermal energy of the hot waste air recovered 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 22 can travel on a rail track 17, 19 and includes a perforated plate 2 for the supply of cooling air.
  • a cooling gas seal 4 is provided between the upper edge 5 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, in particular metallic sealing plates 18.
  • the cooling gas seal 4 carried along with the sinter cooling chamber 3 includes replaceable sealing elements 6 of an elastomeric material.
  • the sealing elements 6 are mounted with a vertical play such that they are seated on the smooth upper edge 5 of the sealing plates 18 of the stationary vertical cooling-air chamber wall 7 and during travel of the sinter cooling chamber 3 slide along the upper edge 5.
  • the sealing elements 6 are arranged outside a protective side wall 8 of the sinter cooling chamber 3 and at the lower end thereof such that the former 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 9 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 accommodated in angular 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 plates 18.
  • the brackets 11 are attached to connecting plates 12 for example by welding.
  • the connecting plates 12 in turn are releasably connected with stiffening ribs 13 below the sinter cooling chamber wall 14.
  • the holders 9 overlap the associated sealing element 6 in a roof-like manner with corresponding inclined surfaces 15, so that sinter dust obtained is easily discharged downwards upon reaching the discharge area.
  • the holders 9 also can be formed in two parts and be clamped onto the sealing elements 6 from the side, in order to provide for an easy assembly and disassembly.
  • the end faces 16 of the sealing elements 6 are formed with such a width that they will always rest on the upper edge 5 of the cooling-air chamber wall 7, 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 6 to 12 cm.
  • a plurality of sealing element portions can be connected with each other at their ends to form an integral sealing element 6.
  • the connection can be made for example by bonding.
  • the ends of the sealing element segments facing each other furthermore overlap to form a miter.
  • the sealing elements 6 are formed in their lower region of a 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, for example by bonding or by co-extrusion.
  • the upper edge 5 of the cooling-air chamber wall 7 in particular can be formed by a sealing strip 23 which is round, in particular circular in cross-section (see Fig. 2C ), in order to avoid a deposition of sinter dust and offer a small contact surface for the sealing elements 6.
  • the sealing strip 23 preferably is made of steel, wherein an additional sheath can be provided, and is replaceable.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Furnace Details (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Powder Metallurgy (AREA)

Claims (12)

  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 mit der Sinterkühlkammer (3) mitgeführte Kühlgasabdichtung (4) Dichtelemente (6) aus elastomerem Material aufweist, welche so mit vertikalem Spiel gelagert sind, dass sie auf den seitlichen in Verfahrensrichtung der Sinterkühlkammer (3) verlaufenden Oberkanten (5) der stationären vertikalen Kühlluftkammerwand (7) aufsitzen und beim Verfahren der Sinterkühlkammer (3) auf den Oberkanten (5) entlang gleiten, wobei die Dichtelemente (6) mittels eines ggf. gewichtbelasteten Halters (9) und eines Führungsbolzens (10) höhenverschieblich gelagert sind.
  2. Sinterkühler nach Anspruch 1, dadurch gekennzeichnet, dass die Dichtelemente (6) außerhalb einer Seitenschutzwand (8) der Sinterkühlkammer (3) und an deren unterem Ende gelagert sind.
  3. Sinterkühler nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Dichtelemente (6) in einem Bereich innerhalb einer z.B. im Kreis geführten Schienenbasis (17) der Kühlluftkammer (1) liegen.
  4. Sinterkühler nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Führungsbolzen (10) in ggf. winkelartigen Trägern (11) aufgenommen sind, welche ihrerseits an unterhalb der Sinterkühlkammerwand (14) vorgesehenen Verbindungsplatten (12) befestigt sind.
  5. Sinterkühler nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der jeweilige Dichtelementhalter (9) das zugehörige Dichtelement (6) dachartig mit entsprechenden Schrägflächen (15) übergreift.
  6. Sinterkühler nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Stirnflächen (16) der jeweiligen Dichtelemente (6) so breit ausgebildet ist, dass sie auch bei seitlichem Ausweichen der fahrenden Sinterkühlkammer (3) immer auf der Oberkante (5) der Kühlluftkammerwand (7) aufliegen.
  7. Sinterkühler nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass mehrere Dichtelementabschnitte an ihren Enden miteinander zu einem einstückigen Dichtelement (6) verbunden, z. B. miteinander verklebt sind.
  8. Sinterkühler nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die einander zugewandten Enden der Dichtelementsegmente sich überlappend eine Gehrung bilden.
  9. 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, insbesondere Polyethylen, bestehen.
  10. Sinterkühler nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Dichtelemente (6) in ihrem oberen Bereich aus einem mit Metall gut verbindbaren Polymer, insbesondere Polyethylen, bestehen.
  11. Sinterkühler nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die beiden Dichtelementbereiche der Dichtelemente miteinander verklebt oder gemeinsam extrudiert sind.
  12. Sinterkühler nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Oberkante (5) der Kühlluftkammerwand (7) von einer stationären Dichtleiste (23) mit rundem, vorzugsweise kreisrundem Querschnitt gebildet ist.
EP10755099.8A 2009-10-08 2010-09-08 Vorrichtung zum kühlen von sintermaterial mit auswechselbarem dichtungselement Not-in-force EP2486158B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10755099T PL2486158T3 (pl) 2009-10-08 2010-09-08 Chłodnia spieku z wymiennym uszczelnieniem

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009048724A DE102009048724A1 (de) 2009-10-08 2009-10-08 Sinterkühler
PCT/EP2010/005518 WO2011042100A1 (en) 2009-10-08 2010-09-08 Sinter cooler with exchangeable seal

Publications (2)

Publication Number Publication Date
EP2486158A1 EP2486158A1 (de) 2012-08-15
EP2486158B1 true EP2486158B1 (de) 2016-01-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP10755099.8A Not-in-force EP2486158B1 (de) 2009-10-08 2010-09-08 Vorrichtung zum kühlen von sintermaterial mit auswechselbarem dichtungselement

Country Status (10)

Country Link
EP (1) EP2486158B1 (de)
AU (1) AU2010305131B2 (de)
BR (1) BR112012007973A2 (de)
DE (1) DE102009048724A1 (de)
EA (1) EA019692B1 (de)
ES (1) ES2568214T3 (de)
PL (1) PL2486158T3 (de)
UA (1) UA103111C2 (de)
WO (1) WO2011042100A1 (de)
ZA (1) ZA201202058B (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102703724B (zh) * 2012-01-20 2013-08-07 苏州振吴电炉有限公司 电渣炉大电流同轴滑动导电集电装置
CN102703722B (zh) * 2012-01-20 2013-08-21 苏州振吴电炉有限公司 电渣炉的塔式炉头升降机构
CN102703720B (zh) * 2012-01-20 2013-09-18 苏州振吴电炉有限公司 电渣炉电极稳定控制机械手
EP2980515A1 (de) * 2014-07-28 2016-02-03 Paul Wurth S.A. Sinterkühler
CN106403620B (zh) * 2016-11-22 2018-09-25 无锡市伟丰印刷机械厂 一种工业用冶金冷却装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE602587R (fr) * 1961-03-03 1961-07-31 Metallgesellschaft Ag Installation d'agglomération ou de grillage
US3655174A (en) * 1969-10-14 1972-04-11 Dravo Corp Air sealing device for the traveling grates of sintering machines
FR2242472B1 (de) * 1973-08-30 1978-01-27 Creusot Loire
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
KR20090021550A (ko) * 2007-08-27 2009-03-04 동양주공주식회사 소결대차의 슬라이드형 씰링장치

Also Published As

Publication number Publication date
UA103111C2 (uk) 2013-09-10
ZA201202058B (en) 2013-05-29
AU2010305131A1 (en) 2012-04-26
EA019692B1 (ru) 2014-05-30
EA201290181A1 (ru) 2012-11-30
BR112012007973A2 (pt) 2016-03-29
ES2568214T3 (es) 2016-04-28
EP2486158A1 (de) 2012-08-15
PL2486158T3 (pl) 2016-08-31
DE102009048724A1 (de) 2011-04-21
WO2011042100A1 (en) 2011-04-14
AU2010305131B2 (en) 2015-03-12

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