EP1380805A1 - Sidewall-sealing for grate cooler via brushes - Google Patents

Sidewall-sealing for grate cooler via brushes Download PDF

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Publication number
EP1380805A1
EP1380805A1 EP03405524A EP03405524A EP1380805A1 EP 1380805 A1 EP1380805 A1 EP 1380805A1 EP 03405524 A EP03405524 A EP 03405524A EP 03405524 A EP03405524 A EP 03405524A EP 1380805 A1 EP1380805 A1 EP 1380805A1
Authority
EP
European Patent Office
Prior art keywords
cooler
sealing
plates
side wall
wall
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.)
Withdrawn
Application number
EP03405524A
Other languages
German (de)
French (fr)
Inventor
Erfindernennung liegt noch nicht vor Die
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.)
MERTEC AG
Original Assignee
S+h Meerstetter AG
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 S+h Meerstetter AG filed Critical S+h Meerstetter AG
Publication of EP1380805A1 publication Critical patent/EP1380805A1/en
Withdrawn legal-status Critical Current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
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0073—Seals
    • 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
    • F27D5/00—Supports, screens, or the like for the charge within the furnace

Definitions

  • the hot clinker is cooled in chill grate coolers.
  • the Clinker transported over ventilated cooler plates and constantly cooled.
  • the invention relates to an edge sealing element between the radiator plates and the radiator side wall according to Claim.
  • the gap between the cooler plate and the radiator side wall flexibly sealed.
  • the brush elements are on the underside of the cooler plate fixed.
  • the brush elements are based on the length and geometry of the panels customized.
  • the fastening according to the invention is carried out with welding or screwed fastening elements.
  • the gap between the cooler plates and the cooler wall is included when cold thermal expansion. This happens depending on the corresponding one Temperature and the stretchable cooler width and is calculated on the touch in operating condition set. Lateral displacements of the grille during the thrust movements are caused by the Brush seals flexibly intercepted. The brush seals close the gap between the cooler plates and cooler wall and thus also prevent the clinker from falling through.
  • the brush elements (1) made of heat-resistant steel are available in one possible version on the underside the outer radiator plates (2) welded (3).
  • the brush elements are supposed to be the radiator plates protrude so far that in the operating state there is just contact between the brush and the radiator wall (4) exists, i.e. due to the thermal expansion at the corresponding operating temperature and cooler width a gap is set in the cold state, the dimensions of which correspond to the calculated expansion should.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

Side wall seal for a clinker moving grate cooler comprises a brush element (1) sealing the gap between the cooler wall (4) and the outer rows of cooling plates (2). Preferred Features: The brush elements are made of material resistant to temperatures of 200 to over 1100degreesC and are fixed on the cooler plates or on the cooler wall.

Description

Technisches GebietTechnical field

Bei der Herstellung von Zement wird der heisse Klinker in Schubrostkühlern abgekühlt. Dabei wird der Klinker über belüftete Kühlerplatten transportiert und stetig gekühlt.In the production of cement, the hot clinker is cooled in chill grate coolers. The Clinker transported over ventilated cooler plates and constantly cooled.

Die Erfindung betrifft ein Rand-Dichtelement zwischen den Kühlerplatten und der Kühlerseitenwand gemäss Patentanspruch.The invention relates to an edge sealing element between the radiator plates and the radiator side wall according to Claim.

Stand der TechnikState of the art

Zur Dichtung des Spalts zwischen Kühlerplatten und der Kühlerseitenwand bestehen verschiedene Konstruktionen mit meistens von der Wand her über die Kühlerplatten überragenden Elementen. Keine dieser bekannten Konstruktionen garantiert eine 100% Dichtung und kann nicht als optimale Lösung angesehen werden. Eines der Grundprobleme ist die Ausdehnung des Kühlers unter den erhöhten Betriebstemperaturen von > 100°C bis ca. 1200°C in den vordersten Plattenreihen. Werden die beweglichen Kühlerplatten mit zu geringem Spalt auf dem Rost fixiert kann im ausgedehnten Betriebszustand der Schubrostkühler klemmen. Bei zu grossem Spalt hingegen gelangt sehr viel der für den Klinker-Kühlprozess bestimmten Luft direkt der Seitenwand entlang nach oben. Dies senkt die Kühlleistung und erhöht die Zufuhr von Kühlluft.Various designs exist for sealing the gap between the radiator plates and the radiator side wall mostly with elements protruding from the wall over the radiator plates. None of these Known constructions guarantee a 100% seal and cannot be regarded as an optimal solution become. One of the basic problems is the expansion of the cooler under the elevated operating temperatures from> 100 ° C to approx. 1200 ° C in the front row of plates. Become the movable cooler plates Fixed with too little gap on the grate in the extended operating state of the grate cooler terminals. If the gap is too large, on the other hand, a great deal is achieved for the clinker cooling process Air straight up along the side wall. This lowers the cooling capacity and increases the supply of Cooling air.

Gleichzeitig findet durch die aufströmende mit abrassivem Klinkerstaub belasteten Luft ein kontinuierlicher Verschleiss der Kühlerseitenwände statt.At the same time, the air that is loaded with abrasive clinker dust finds a continuous one Wear of the radiator side walls instead.

Detaillierte Darstellung der ErfindungDetailed description of the invention

Durch den Einsatz von hitzebeständigen Stahlbürsten-Elementen wird der Spalt zwischen der Kühlerplatte und der Kühlerseitenwand flexibel gedichtet. Die Bürsten-Elemente werden auf der Kühlerplattenunterseite fixiert. Daneben wäre es auch möglich die Bürsten-Elemente an der Kühlerplattenoberseite oder an der Kühlerwand anzubringen. Die Bürsten-Elemente werden auf die Länge- und die Geometrie der Platten angepasst. Die erfindungsgemässe Befestigung erfolgt mit Schweissen oder angeschraubten Befestigungselementen. Der Spalt zwischen Kühlerplatten und Kühlerwand wird im kalten Zustand mit Einbezug der thermischen Ausdehnung festgelegt. Dies geschieht in Abhängigkeit von der entsprechenden Temperatur und der dehnbaren Kühlerbreite und wird auf die berechnete Berührung bei Betriebszustand eingestellt. Seitliche Verschiebungen des Kühlerrostes bei den Schubbewegungen werden durch die Bürstendichtungen flexibel abgefangen. Die Bürstendichtungen schliessen den Spalt zwischen Kühlerplatten und Kühlerwand und verhindern damit auch den Durchfall von Klinker.Through the use of heat-resistant steel brush elements, the gap between the cooler plate and the radiator side wall flexibly sealed. The brush elements are on the underside of the cooler plate fixed. In addition, it would also be possible to use the brush elements on the top of the cooler plate or on the radiator wall. The brush elements are based on the length and geometry of the panels customized. The fastening according to the invention is carried out with welding or screwed fastening elements. The gap between the cooler plates and the cooler wall is included when cold thermal expansion. This happens depending on the corresponding one Temperature and the stretchable cooler width and is calculated on the touch in operating condition set. Lateral displacements of the grille during the thrust movements are caused by the Brush seals flexibly intercepted. The brush seals close the gap between the cooler plates and cooler wall and thus also prevent the clinker from falling through.

Durch die Einsparung von Kühlluft kann die gesamt Effizienz des Kühlers gesteigert und Kosten eingespart werden. By saving cooling air, the overall efficiency of the cooler can be increased and costs can be saved become.

Aufzählung der ZeichnungenList of drawings

  • Fig. 1: Bürsten ElementFig. 1: Brushing element
  • Fig. 2: KühlerplatteFig. 2: radiator plate
  • Fig. 3: ZusammenstellungFig. 3: compilation
  • Fig. 4: Einbau SkizzeFig. 4: Installation sketch

    • Ausführung der ErfindungImplementation of the invention

    Die Bürsten-Elemente (1) aus hitzebeständigem Stahl werden in einer möglichen Ausführung an der Unterseite der äusseren Kühlerplatten (2) angeschweisst (3). Die Bürsten-Elemente sollen die Kühlerplatten soweit überragen, dass bei Betriebszustand gerade eine Berührung zwischen Bürste und Kühlerwand (4) besteht, d.h. aufgrund der thermischen Ausdehnung bei entsprechender Betriebstemperatur und Kühlerbreite wird im kalten Zustand ein Spalt eingestellt, dessen Mass der berechneten Ausdehnung entsprechen soll.The brush elements (1) made of heat-resistant steel are available in one possible version on the underside the outer radiator plates (2) welded (3). The brush elements are supposed to be the radiator plates protrude so far that in the operating state there is just contact between the brush and the radiator wall (4) exists, i.e. due to the thermal expansion at the corresponding operating temperature and cooler width a gap is set in the cold state, the dimensions of which correspond to the calculated expansion should.

    Claims (3)

    Seitenwanddichtung für Klinker-Schubrostkühler mittels Bürsten, dadurch gekennzeichnet, dass der Spalt zwischen der Kühlerwand (4) und den äusseren Kühlerplattenreihen (2) mit einem Bürsten-Element (1) gedichtet wird.Side wall seal for clinker-moving grate cooler by means of brushes, characterized in that the gap between the cooler wall (4) and the outer rows of cooler plates (2) is sealed with a brush element (1). Seitenwanddichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Bürsten-Elemente an der Kühlerplatte (2) oder an der Kühlerwand (4) fixiert sind.Side wall seal according to claim 1, characterized in that the brush elements on the cooler plate (2) or on the cooler wall (4) are fixed. Seitenwanddichtung nach Anspruch 1 bis 2, dadurch gekennzeichnet, dass die Bürsten-Elemente (1) aus hitzebeständigem Material von 200°C bis über 1100° bestehen.Side wall seal according to claim 1 to 2, characterized in that the brush elements (1) consist of heat-resistant material from 200 ° C to over 1100 °.
    EP03405524A 2002-07-11 2003-07-10 Sidewall-sealing for grate cooler via brushes Withdrawn EP1380805A1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    CH12292002 2002-07-11
    CH12292002 2002-07-11

    Publications (1)

    Publication Number Publication Date
    EP1380805A1 true EP1380805A1 (en) 2004-01-14

    Family

    ID=29721358

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP03405524A Withdrawn EP1380805A1 (en) 2002-07-11 2003-07-10 Sidewall-sealing for grate cooler via brushes

    Country Status (1)

    Country Link
    EP (1) EP1380805A1 (en)

    Citations (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP0619465A1 (en) * 1993-03-22 1994-10-12 Sanei-Kisetsu Co., Ltd. Method of and apparatus for manufacturing a mat for building purpose

    Patent Citations (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP0619465A1 (en) * 1993-03-22 1994-10-12 Sanei-Kisetsu Co., Ltd. Method of and apparatus for manufacturing a mat for building purpose

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