EP2486160B1 - Sinter cooler with seal arrangement towards travelling sinter-bearing chamber - Google Patents

Sinter cooler with seal arrangement towards travelling sinter-bearing chamber Download PDF

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Publication number
EP2486160B1
EP2486160B1 EP10757157.2A EP10757157A EP2486160B1 EP 2486160 B1 EP2486160 B1 EP 2486160B1 EP 10757157 A EP10757157 A EP 10757157A EP 2486160 B1 EP2486160 B1 EP 2486160B1
Authority
EP
European Patent Office
Prior art keywords
sinter
base plate
wheel axle
cooling
sealing
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
EP10757157.2A
Other languages
German (de)
French (fr)
Other versions
EP2486160A1 (en
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 EP2486160A1 publication Critical patent/EP2486160A1/en
Application granted granted Critical
Publication of EP2486160B1 publication Critical patent/EP2486160B1/en
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
    • 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

  • 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 or slotted base plate, which can travel over the same e.g. by means of bogie wheels running on a rail track, and comprising a cooling gas seal including lower sealing walls, which extends between the cooling-air chamber and the sinter cooling chamber in the vicinity of the base plate wheel axle.
  • CN 201 032 375 discloses a sealing device for a circular cooling machine running with bogie wheels on a rail track.
  • the device has an airtight box mounted around the wheel axle and comprising plates that are separately connected with fixed rubber airproof plates.
  • the cooling gas seal carried along with the sinter cooling chamber includes inner skirting plates and/or outer sealing elements each inserted into the sealing walls, wherein the respective skirting plate or the respective sealing element encloses the base plate wheel axle with snug fit and is mounted on the sealing wall so as to be freely movable relative to the base plate wheel axle.
  • skirting plates and/or the sealing elements are arranged to be freely floating around the base plate wheel axle and take up the movement of the base plate wheel axle.
  • the sealing elements arranged on the outside in particular can be made of neoprene.
  • the respective skirting plate can have an elastically resilient edge bead which rests against the base plate wheel axle and preferably is adapted to the thickness of the sealing wall.
  • a sinter cooling chamber 1 can travel over a cooling-air chamber 3 for example by means of bogie wheels 2, so that cooling air supplied into the cooling-air chamber 3 by means of a blower can be introduced via a perforated or slotted base plate 4 into the sinter cooling chamber 1 which contains the hot sinter material to be cooled.
  • the hot waste air is discharged upwards from the sinter cooling chamber 1 and supplied e.g. to a heat recovery.
  • a cooling gas seal 5 includes inner skirting plates 8 and/or outer sealing elements 6 made of a heat-resistant elastomer for the wheel axle cutouts around the base plate wheel axles 7.
  • the respective skirting plate 8 and/or the respective sealing element 6 of the cooling gas seal 5 carried along with the sinter cooling chamber 1 encloses the base plate wheel axle 7 with snug fit and is mounted on the bottom surface of lower sealing walls 9 so as to be freely movable relative to the base plate wheel axle 7.
  • the skirting plates 8 and/or the sealing elements 6 preferably are arranged to be freely floating around the base plate wheel axle 7, so that they can take up the movement of the base plate wheel axle 7.
  • neoprene is preferably used as an elastomer for the sealing elements 6.
  • the service life of the sealing elements 6 can substantially be increased, since they are exposed less to sinter dust and heat.
  • Figures 4 to 6B illustrate special configurations of a template-like inner skirting plate 8 with edge bead 10 in accordance with the invention and of a template-like sealing element 6 with skirting plate 8 in accordance with the invention as well as the way of mounting a sealing element 6 in the lower sealing wall 9.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (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)
  • Tunnel Furnaces (AREA)
  • Furnace Details (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Description

  • 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 or slotted base plate, which can travel over the same e.g. by means of bogie wheels running on a rail track, and comprising a cooling gas seal including lower sealing walls, which extends between the cooling-air chamber and the sinter cooling chamber in the vicinity of the base plate wheel axle.
  • In such sinter coolers, sealing elements for sealing the gap around the base plate wheel axles previously have been used to avoid cooling air losses. In this way, the losses of the cooling air flowing from the cooling-air chamber to the sinter cooling chamber should be reduced, so that more cooling air passes through the holes of the perforated plate, in order to improve the cooling of the sinter material and reduce the operating costs. The previously used cooling air seal is subject to considerable wear, which involves a frequent renewal of the sealing elements to be performed by hand.
  • CN 201 032 375 discloses a sealing device for a circular cooling machine running with bogie wheels on a rail track.The device has an airtight box mounted around the wheel axle and comprising plates that are separately connected with fixed rubber airproof plates.
  • It is the object of the present invention to equip a sinter cooler as mentioned above with a novel cooling gas seal, which with an improved durability safely reduces cooling air losses and hence the amount of required cooling air, which should lead to a saving of operating costs and improve the effectiveness of the cooler.
  • In a sinter cooler as mentioned above, this object in particular is solved in that the cooling gas seal carried along with the sinter cooling chamber includes inner skirting plates and/or outer sealing elements each inserted into the sealing walls, wherein the respective skirting plate or the respective sealing element encloses the base plate wheel axle with snug fit and is mounted on the sealing wall so as to be freely movable relative to the base plate wheel axle.
  • Due to this special kind of the formation and arrangement of the cooling gas seal, a self-compensating method is proposed for a reliable protection of the sealing elements, in order to avoid or reduce the wear thereof, which would lead to undesired cooling gas losses.
  • This objective in particular is achieved when the skirting plates and/or the sealing elements are arranged to be freely floating around the base plate wheel axle and take up the movement of the base plate wheel axle.
  • The sealing elements arranged on the outside in particular can be made of neoprene.
  • The respective skirting plate can have an elastically resilient edge bead which rests against the base plate wheel axle and preferably is adapted to the thickness of the sealing wall.
  • Further developments, advantages and possible applications of the invention can be taken from the following description of an embodiment and the attached drawing. All features described and/or illustrated form the subject-matter of the invention per se or in any combination, also independent of their inclusion in individual claims or their back-reference.
  • In the drawing:
    • Fig. 1
    schematically shows a section through a sinter cooler including the invention,
    Fig. 2
    shows a schematic partial view in the vicinity of a bogie wheel obliquely from below and inside onto the sinter cooling chamber of a sinter cooler as shown in Fig. 1,
    Fig. 3
    shows a schematic partial view in the vicinity of a bogie wheel obliquely from above and outside onto the sinter cooling chamber of a sinter cooler as shown in Fig. 1,
    Fig. 4
    shows an oblique view of a skirting plate to be mounted from the inside of a wheel cutout of a sinter cooling chamber as shown in Fig. 1,
    Fig. 5A and Fig. 5B
    show two oblique views (from inside and from outside) of a wheel axle cutout seal, and
    Fig. 6A and Fig. 6B
    show the two steps of inserting a wheel axle cutout seal into the sealing wall of a sinter cooling chamber as shown in Fig. 1.
  • In such sinter cooler of the invention, a sinter cooling chamber 1 can travel over a cooling-air chamber 3 for example by means of bogie wheels 2, so that cooling air supplied into the cooling-air chamber 3 by means of a blower can be introduced via a perforated or slotted base plate 4 into the sinter cooling chamber 1 which contains the hot sinter material to be cooled. The hot waste air is discharged upwards from the sinter cooling chamber 1 and supplied e.g. to a heat recovery.
  • A cooling gas seal 5 includes inner skirting plates 8 and/or outer sealing elements 6 made of a heat-resistant elastomer for the wheel axle cutouts around the base plate wheel axles 7. The respective skirting plate 8 and/or the respective sealing element 6 of the cooling gas seal 5 carried along with the sinter cooling chamber 1 encloses the base plate wheel axle 7 with snug fit and is mounted on the bottom surface of lower sealing walls 9 so as to be freely movable relative to the base plate wheel axle 7.
  • The skirting plates 8 and/or the sealing elements 6 preferably are arranged to be freely floating around the base plate wheel axle 7, so that they can take up the movement of the base plate wheel axle 7.
  • As an elastomer for the sealing elements 6, neoprene is preferably used.
  • Due to the possibly provided outer skirting plate 8, the service life of the sealing elements 6 can substantially be increased, since they are exposed less to sinter dust and heat.
  • Figures 4 to 6B illustrate special configurations of a template-like inner skirting plate 8 with edge bead 10 in accordance with the invention and of a template-like sealing element 6 with skirting plate 8 in accordance with the invention as well as the way of mounting a sealing element 6 in the lower sealing wall 9.
    • List of Reference Numerals:
    • 1
    sinter cooling chamber
    2
    bogie wheels
    3
    cooling-air chamber
    4
    base plate
    5
    cooling gas seal
    6
    sealing elements for wheel axle cutout
    7
    base plate wheel axle
    8
    skirting plate for wheel axle cutout
    9
    sealing walls.
    10
    edge bead

Claims (4)

  1. A sinter cooler of a sintering plant for use in metallurgy, comprising a cooling-air chamber (3) and a sinter cooling chamber (1) including a perforated or slotted base plate (4), which can travel over the same e.g. by means of bogie wheels (2) running on a rail track, and comprising a cooling gas seal (5) including lower sealing walls (9), which extends between the cooling-air chamber (3) and the sinter cooling chamber (1) in the vicinity of the base plate wheel axle (7), characterized in that the cooling gas seal (5) carried along with the sinter cooling chamber (1) includes inner skirting plates (8) and/or outer sealing elements (6) each inserted into the sealing walls (9), wherein the respective skirting plate (8) or the respective sealing element (6) encloses the base plate wheel axle (7) with snug fit and is mounted on the sealing wall (9) so as to be freely movable relative to the base plate wheel axle (7).
  2. The sinter cooler according to claim 1, characterized in that the skirting plates (8) and/or the sealing elements (6) are arranged to be freely floating around the base plate wheel axle (7) and take up the movement of the base plate wheel axle (7).
  3. The sinter cooler according to claim 1 or 2, characterized in that the sealing elements (6) are made of neoprene.
  4. The sinter cooler according to any of the preceding claims, characterized in that the skirting plate (8) includes an edge bead (10), which rests against the base plate wheel axle (7) and preferably is adapted to the thickness of the sealing wall (9).
EP10757157.2A 2009-10-08 2010-09-08 Sinter cooler with seal arrangement towards travelling sinter-bearing chamber Not-in-force EP2486160B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009048723.9A DE102009048723B4 (en) 2009-10-08 2009-10-08 sinter cooler
PCT/EP2010/005519 WO2011042101A1 (en) 2009-10-08 2010-09-08 Sinter cooler with seal arrangement towards travelling sinter-bearing chamber

Publications (2)

Publication Number Publication Date
EP2486160A1 EP2486160A1 (en) 2012-08-15
EP2486160B1 true EP2486160B1 (en) 2016-01-27

Family

ID=43304645

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10757157.2A Not-in-force EP2486160B1 (en) 2009-10-08 2010-09-08 Sinter cooler with seal arrangement towards travelling sinter-bearing chamber

Country Status (9)

Country Link
EP (1) EP2486160B1 (en)
AU (1) AU2010305132B2 (en)
BR (1) BR112012008183B8 (en)
DE (1) DE102009048723B4 (en)
EA (1) EA023251B1 (en)
ES (1) ES2567167T3 (en)
UA (1) UA103115C2 (en)
WO (1) WO2011042101A1 (en)
ZA (1) ZA201202063B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103134329A (en) * 2013-03-25 2013-06-05 王滢 Smooth roller wheel of ring cooling machine table car

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2844227C2 (en) * 1978-10-11 1987-03-26 Metallgesellschaft Ag, 6000 Frankfurt Round cooler for hot lumpy material
DE3037222A1 (en) * 1980-10-02 1982-04-29 TKV Transportanlagen - Konstruktions- und Vertriebs-Gesellschaft mbH, 6380 Bad Homburg DEVICE FOR THE THERMAL TREATMENT OF PIECE OF GOODS IN CIRCULAR TROUGHS WITH GAS-PERMANENT FLOORS
JPS6170379A (en) * 1984-09-12 1986-04-11 日立造船株式会社 Cooling device for high-temperature powdered and granular body
KR20010108980A (en) * 2000-06-01 2001-12-08 이구택 Air tightness apparatus using wight of sinter cooler
CN201032375Y (en) * 2007-04-05 2008-03-05 中冶长天国际工程有限责任公司 Trolley axle terminal sealing device for circular cooler
CN100567868C (en) * 2007-09-03 2009-12-09 中冶长天国际工程有限责任公司 A kind of improved rotary forced-air cooler
CN101118119B (en) * 2007-09-03 2010-05-19 中冶长天国际工程有限责任公司 Sealing structure used for ring cold machine trolley unit static sealing device

Also Published As

Publication number Publication date
BR112012008183A2 (en) 2016-03-01
EP2486160A1 (en) 2012-08-15
AU2010305132A1 (en) 2012-04-26
BR112012008183B1 (en) 2018-01-02
DE102009048723B4 (en) 2015-06-11
EA023251B1 (en) 2016-05-31
BR112012008183B8 (en) 2023-03-28
EA201290182A1 (en) 2012-11-30
UA103115C2 (en) 2013-09-10
WO2011042101A1 (en) 2011-04-14
ES2567167T3 (en) 2016-04-20
AU2010305132B2 (en) 2014-12-04
DE102009048723A1 (en) 2011-04-28
ZA201202063B (en) 2013-05-29

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