EP1407189B1 - Device and method for constructing a slatted floor consisting of positively connected lamellar structures - Google Patents

Device and method for constructing a slatted floor consisting of positively connected lamellar structures Download PDF

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EP1407189B1
EP1407189B1 EP02754377A EP02754377A EP1407189B1 EP 1407189 B1 EP1407189 B1 EP 1407189B1 EP 02754377 A EP02754377 A EP 02754377A EP 02754377 A EP02754377 A EP 02754377A EP 1407189 B1 EP1407189 B1 EP 1407189B1
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Prior art keywords
lamella bodies
lamella
grate
bodies
casing
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German (de)
French (fr)
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EP1407189A1 (en
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Michael Janzer
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Janzer Michael
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Janzer Michael
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    • 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
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H17/00—Details of grates
    • F23H17/08—Bearers; Frames; Spacers; Supports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H17/00—Details of grates
    • F23H17/12—Fire-bars
    • 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
    • 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
    • F27D2015/0226—Support, fixation of the grate

Definitions

  • the present invention relates to the formation of a diarrheless rust base of mutually positively connected lamellar bodies for receiving bulk material during their combustion, cooling or otherwise treatment, in particular for cooling burned bulk materials, by means of a gas flowing between the lamellar bodies gas.
  • Grate floors are subject to heavy wear, especially when used in coolers for the thermal treatment of cement clinker.
  • the mass of the wear parts to be changed is considerable and goes beyond the contact surfaces in contact with the conveyed in some cases significantly out.
  • wear-and-tear fasteners are expensive and disadvantageous, especially if they can be solved for maintenance only by flame cutting and not more, as usual in the assembly, by screwing.
  • accessibility overhead assembly work from below the grate floor is difficult. Complicated fasteners and assembly procedures require trained personnel and are costly.
  • the grate floor of grate plates which are mounted on grate carriers, formed such that the grate plates in the longitudinal direction scale-like overlap and alternately stationary or in the longitudinal direction of the grate are movable back and forth, as in the patent DE-PS 952 785 or DE -A-19,851,471.
  • the grate plates have openings on the surface through which the cooling medium, preferably air, is supplied to the bulk material lying thereon.
  • These grate plates are usually mounted on a grate carrier.
  • the disadvantage of the known construction is that the grate plates are cast or welded in one piece. With different heat input, eg cooling air from below and very hot material from above, discard the grate plates and / or they tear.
  • a reduction of the grate plates and grate carrier is not economical and increases the number of shear and side gaps and thus the unwanted rust rust through these gaps.
  • bulk material can fall through the openings in the surface and causes wear.
  • a transport system for the disposal of the Rost micfalls is required.
  • the grate plate has been replaced by a grate bottom element in the form of a box, as in the patent DE 33 32 592 C1.
  • This box is mounted on a designated as air bar rust carrier.
  • the cooling medium is fed directly to the air bar via a plurality of line connections and from there further distributed to the box-shaped grate floor elements.
  • the box-shaped grate floor element also referred to as grate plate, opens the Possibility that the rust surface is formed by overlapping profiles, which reduce rust rust.
  • the main disadvantage of the known construction is that the wear-rust surface is a firmly connected component of the box-shaped grate plate and can only be replaced as a whole.
  • Another disadvantage of this known construction is that no separate material from the box can be used for the grate surface.
  • Another disadvantage of this known construction is that such grate plates can only be fixed in the closed state on the grate carriers and the lack of accessibility, the attachment to the laterally adjacent grate plates and the grate carrier is complicated.
  • a patent EP 0 549 816 B2 describes a box-like grate floor element with side bars which have a longitudinal guide profile.
  • the lamellar bodies are inserted with their lateral counter profiles in these longitudinal guides and then the opening on the frame front side is closed by a Congresslamelle.
  • the disadvantage of the known construction is that the box-like grate floor element or the frame is open at the top and additionally a frame end wall with a lower wall height than the side walls, whereby the frame is statically weakened.
  • Another disadvantage of the known construction is that corresponding formations of the longitudinal grooves on the grate plate box and the counter profiles are required on the lamellar bodies.
  • Another disadvantage of the known construction is that the formation of a flat grid floor of exclusively box-shaped grate floor elements is only possible to a limited extent, since the change of the fin body accessibility must be given by a front side of the box-like grate floor element. Otherwise, a lamella body replacement requires the disassembly of the entire grate floor element.
  • Another disadvantage of the known construction is that the length of the grate is limited or inappropriate due to the insertion of an end face, since the necessary gap between the lamellar bodies for thermal expansion adds up and leads to a large, instead of many small gaps.
  • Another disadvantage of the known construction is that a replacement of a single disk body is time-consuming.
  • Another patent EP 0 740 766 B1 describes a fastening of a box-shaped grate plate on a grate carrier by means of a tensioning element.
  • the disadvantage of this known construction is that the desired simultaneous lateral attachment with other grate floor elements and the attachment to the grate support by the clamping element has no defined adhesion.
  • Another disadvantage of the known construction is that the replacement of a lamellar body is always connected to a loosening of the connection grate plate to the grate carrier.
  • a grate floor is formed, which consists of small thermally insensitive lamellar bodies with sufficient thermal expansion joints, and in which the lamellae have a limited to one degree of freedom, preferably positive fit.
  • the grate floor thus formed can be made extremely advantageous and versatile with respect to the gas passages, especially if the gas passage opening between the lamellar bodies is formed by the assembly of the lamellar body. Particularly advantageous is the formation of the gas outlet opening as a slanted in the transport direction slot over the entire width of the disk body. By overlapping the lamellar body of the gas slot can be formed with a trough below the grate surface so that no bulk material can fall under the grate floor.
  • a bilateral flow around the lamellar body ensures good cooling of the lamellar body and reduces thermal stresses.
  • the positive fit of the assembled lamellar body and the free design of the attachment to a supporting structure allows the formation of thermal expansion joints to avoid warping and cracks.
  • a particularly advantageous embodiment of the present invention is created in that a separation of the grate floor and support structure allows the versatile use of this grate on a variety of gratings such as known stationary inclined grates in the radiator inlet area, powered grates and grates with a flat grate floor and various other grates on which bulk goods are transported and heat-treated.
  • gratings such as known stationary inclined grates in the radiator inlet area, powered grates and grates with a flat grate floor and various other grates on which bulk goods are transported and heat-treated.
  • the cover plate can be relatively easily replaced by the present invention of a mated form-fitting rust base.
  • the design of the box element is simple and allowed by the open accessibility, especially from above, when mounting a best possible and easy attachment to the support structure, commonly referred to as a grate carrier.
  • the box element is not statically weakened by further lateral openings or lowered end walls.
  • mounting exclusively from above is particularly advantageous.
  • the configuration of the support structure for receiving a grate floor according to the present invention is more versatile and cheaper possible.
  • the attachment of the grate floor for example, via a central locking means shaft, as described in the accompanying drawing, or via a recessed and thus protected attachment from above done.
  • the reduction of wearing parts on the exclusively with the Conveying in contact bearing surfaces is particularly advantageous because of the material for the grate other requirements than to the support structure are made and the consumable mass is reduced.
  • the present invention reduces the wear parts by separating the grate floor and support structure and depending on the application, the fasteners of grate floor and support structure are completely protected and are no longer considered wear parts.
  • a particularly advantageous embodiment of the present invention is created in that the generally highly thermally and weary grate surface is formed essentially of identical and thus cheaper lamellar bodies. This high share of equal parts is also particularly advantageous in terms of storage.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Incineration Of Waste (AREA)
  • Forging (AREA)
  • Baking, Grill, Roasting (AREA)
  • Building Environments (AREA)

Abstract

The invention relates to a method and device for constructing a closely slatted floor consisting of lamellar structures (1, 7), positively connected to each other, for receiving bulk material for the combustion, cooling or other processing thereof, especially for the cooling of burnt bulk material, by means of a gas flowing between the lamellar structures (1,7). A slatted floor (6) is made up by joining together said structures (1, 7). Said floor consists of small heat-resistant lamellar structures (1, 7) with sufficient thermal expansion joints, presents preferably a positive connection limited to a certain degree of freedom and can be used for different grids.

Description

Die vorliegende Erfindung betrifft die Bildung eines durchfallfreien Rostbodens aus untereinander formschlüssig verbundenen Lamellenkörpern zur Aufnahme von Schüttgut bei deren Verbrennung, Kühlung oder anderweitiger Behandlung, insbesondere zum Kühlen von gebrannten Schüttgütern, mittels eines zwischen den Lamellenkörpern strömenden Gases.The present invention relates to the formation of a diarrheless rust base of mutually positively connected lamellar bodies for receiving bulk material during their combustion, cooling or otherwise treatment, in particular for cooling burned bulk materials, by means of a gas flowing between the lamellar bodies gas.

Der in den Patentansprüchen 1 und 2 angegebenen Erfindung liegen folgende Probleme zugrunde: Rostböden sind starkem Verschleiß unterworfen, insbesondere beim Einsatz in Kühlern zur thermischen Behandlung von Zementklinker. Die Masse der zu wechselnden Verschleißteile ist erheblich und geht über die mit dem Fördergut in Kontakt stehenden Anlageflächen zum Teil deutlich hinaus. Auch verschleißende Verbindungselemente sind kostenintensiv und nachteilig, insbesondere wenn sie zur Wartung nur noch durch Brennschneiden lösbar sind und nicht mehr, wie bei der Montage üblich, durch Verschrauben. Außerdem ist die Zugänglichkeit bei Montagearbeiten überkopf von unterhalb des Rostbodens schwierig. Komplizierte Verbindungselemente und Montageabläufe erfordern geschultes Personal und sind kostenintensiv.The invention specified in the claims 1 and 2 are based on the following problems: Grate floors are subject to heavy wear, especially when used in coolers for the thermal treatment of cement clinker. The mass of the wear parts to be changed is considerable and goes beyond the contact surfaces in contact with the conveyed in some cases significantly out. Also, wear-and-tear fasteners are expensive and disadvantageous, especially if they can be solved for maintenance only by flame cutting and not more, as usual in the assembly, by screwing. In addition, accessibility overhead assembly work from below the grate floor is difficult. Complicated fasteners and assembly procedures require trained personnel and are costly.

In Schubrostkühlern wird der Rostboden aus Rostplatten, die auf Rostträgern befestigt sind, derart gebildet, dass die Rostplatten in Längsrichtung schuppenartig übereinandergreifen und abwechselnd ortsfest bzw. in Längsrichtung des Rostes hin und her beweglich sind, wie im Patent DE-PS 952 785 oder in DE-A-19 851 471 beschrieben. Die Rostplatten weisen Durchbrüche an der Oberfläche auf, durch die das Kühlmedium, bevorzugt Luft, dem daraufliegenden Schüttgut zugeführt wird. Diese Rostplatten werden üblicherweise auf Rostträger montiert.
Der Nachteil der bekannten Konstruktion liegt darin, dass die Rostplatten aus einem Stück gegossen oder geschweißt sind. Bei unterschiedlichem Wärmeeintrag, z.B. Kühlluft von unten und sehr heißes Material von oben, verwerfen sich die Rostplatten und/oder sie reißen. Eine Verkleinerung der Rostplatten und Rostträger ist nicht wirtschaftlich und potenziert die Anzahl der Schub- und Seitenspalte und somit den unerwünschten Rostdurchfall durch diese Spalte. Außerdem kann Schüttgut durch die Durchbrüche in der Oberfläche fallen und verursacht Verschleiß. Zusätzlich wird ein Transportsystem zur Entsorgung des Rostdurchfalls erforderlich.In grate coolers, the grate floor of grate plates, which are mounted on grate carriers, formed such that the grate plates in the longitudinal direction scale-like overlap and alternately stationary or in the longitudinal direction of the grate are movable back and forth, as in the patent DE-PS 952 785 or DE -A-19,851,471. The grate plates have openings on the surface through which the cooling medium, preferably air, is supplied to the bulk material lying thereon. These grate plates are usually mounted on a grate carrier.
The disadvantage of the known construction is that the grate plates are cast or welded in one piece. With different heat input, eg cooling air from below and very hot material from above, discard the grate plates and / or they tear. A reduction of the grate plates and grate carrier is not economical and increases the number of shear and side gaps and thus the unwanted rust rust through these gaps. In addition, bulk material can fall through the openings in the surface and causes wear. In addition, a transport system for the disposal of the Rostdurchfalls is required.

Bei moderneren Rostkühlem ist die Rostplatte durch ein Rostbodenelement in Form eines Kastens, wie in dem Patent DE 33 32 592 C1, ersetzt worden. Dieser Kasten ist auf einem als Luftbalken bezeichnetem Rostträger befestigt. Zum Teil wird dem Luftbalken über mehrere Leitungsanschlüsse das Kühlmedium direkt zugeführt und von dort weiter auf die kastenförmigen Rostbodenelemente verteilt. Das kastenförmige Rostbodenelement, weiterhin als Rostplatte bezeichnet, eröffnet die Möglichkeit, dass die Rostoberfläche durch überlappende Profile gebildet wird, die den Rostdurchfall reduzieren.
Der wesentliche Nachteil der bekannten Konstruktion liegt darin, dass die verschleißende Rostoberfläche ein fest verbundener Bestandteil der kastenförmigen Rostplatte ist und nur als ganzes ausgetauscht werden kann.
Ein weiterer Nachteil dieser bekannten Konstruktion liegt darin, dass für die Rostoberfläche kein vom Kasten gesondertes Material verwendet werden kann.
Ein weiterer Nachteil dieser bekannten Konstruktion liegt darin, dass solche Rostplatten nur im geschlossenen Zustand auf den Rostträgern fixiert werden können und mangels Zugänglichkeit die Befestigung zu den seitlich benachbarten Rostplatten und zum Rostträger kompliziert ist.In modern grate coolers, the grate plate has been replaced by a grate bottom element in the form of a box, as in the patent DE 33 32 592 C1. This box is mounted on a designated as air bar rust carrier. In part, the cooling medium is fed directly to the air bar via a plurality of line connections and from there further distributed to the box-shaped grate floor elements. The box-shaped grate floor element, also referred to as grate plate, opens the Possibility that the rust surface is formed by overlapping profiles, which reduce rust rust.
The main disadvantage of the known construction is that the wear-rust surface is a firmly connected component of the box-shaped grate plate and can only be replaced as a whole.
Another disadvantage of this known construction is that no separate material from the box can be used for the grate surface.
Another disadvantage of this known construction is that such grate plates can only be fixed in the closed state on the grate carriers and the lack of accessibility, the attachment to the laterally adjacent grate plates and the grate carrier is complicated.

Ein Patent EP 0 549 816 B2 beschreibt ein kastenähnliches Rostbodenelement mit Seitenstegen, die ein Längsführungsprofil aufweisen. Die Lamellenkörper werden mit ihren seitlichen Gegenprofilen in diese Längsführungen eingeschoben und anschließend wird die Öffnung an der Rahmenstirnseite durch eine Abschlusslamelle verschlossen.
Der Nachteil der bekannten Konstruktion liegt darin, dass das kastenähnliche Rostbodenelement bzw. der Rahmen nach oben offen und zusätzlich eine Rahmenstirnwand mit einer gegenüber den Seitenwänden geringeren Wandhöhe ausgebildet ist, wodurch der Rahmen statisch geschwächt ist.
Ein weiterer Nachteil der bekannten Konstruktion liegt darin, dass entsprechende Ausformungen der Längsnuten am Rostplattenkasten und der Gegenprofile an den Lamellenkörpern erforderlich sind.
Ein weiterer Nachteil der bekannten Konstruktion liegt darin, dass die Bildung eines ebenen Rostbodens aus ausschließlich kastenförmigen Rostbodenelementen nur eingeschränkt möglich ist, da zum Wechseln der Lamellenkörper die Zugänglichkeit von einer Stirnseite des kastenähnlichen Rostbodenelementes gegeben sein muss. Andernfalls erfordert ein Lamellenkörperwechsel die Demontage des gesamten Rostbodenelementes.
Ein weiterer Nachteil der bekannten Konstruktion liegt darin, dass durch das Hineinschieben von einer Stirnseite die Länge der Rostbahn begrenzt bzw. unzweckmäßig ist, da der notwendige Spalt zwischen den Lamellenkörpern zur Wärmeausdehnung sich aufaddiert und zu einer großen, statt vielen kleinen Lücken führt.
Ein weiterer Nachteil der bekannten Konstruktion liegt darin, dass ein Auswechseln eines einzelnen Lamellenkörpers zeitintensiv ist.A patent EP 0 549 816 B2 describes a box-like grate floor element with side bars which have a longitudinal guide profile. The lamellar bodies are inserted with their lateral counter profiles in these longitudinal guides and then the opening on the frame front side is closed by a Abschlusslamelle.
The disadvantage of the known construction is that the box-like grate floor element or the frame is open at the top and additionally a frame end wall with a lower wall height than the side walls, whereby the frame is statically weakened.
Another disadvantage of the known construction is that corresponding formations of the longitudinal grooves on the grate plate box and the counter profiles are required on the lamellar bodies.
Another disadvantage of the known construction is that the formation of a flat grid floor of exclusively box-shaped grate floor elements is only possible to a limited extent, since the change of the fin body accessibility must be given by a front side of the box-like grate floor element. Otherwise, a lamella body replacement requires the disassembly of the entire grate floor element.
Another disadvantage of the known construction is that the length of the grate is limited or inappropriate due to the insertion of an end face, since the necessary gap between the lamellar bodies for thermal expansion adds up and leads to a large, instead of many small gaps.
Another disadvantage of the known construction is that a replacement of a single disk body is time-consuming.

In einem weiteren Patent EP 0 740 766 B1 ist eine Befestigung einer kastenförmigen Rostplatte auf einem Rostträger mittels eines Spannelementes beschrieben.
Der Nachteil dieser bekannten Konstruktion liegt darin, dass die angestrebte gleichzeitige seitliche Befestigung mit anderen Rostbodenelementen und die Befestigung mit dem Rostträger durch das Spannelement keinen definierten Kraftschluss aufweist.
Ein weiterer Nachteil der bekannten Konstruktion liegt darin, dass das Auswechseln eines Lamellenkörpers immer mit einem Lösen der Verbindung Rostplatte zum Rostträger verbunden ist.Another patent EP 0 740 766 B1 describes a fastening of a box-shaped grate plate on a grate carrier by means of a tensioning element.
The disadvantage of this known construction is that the desired simultaneous lateral attachment with other grate floor elements and the attachment to the grate support by the clamping element has no defined adhesion.
Another disadvantage of the known construction is that the replacement of a lamellar body is always connected to a loosening of the connection grate plate to the grate carrier.

Es ist die Aufgabe der vorliegenden Erfindung, einen Rostboden mit einfachen konstruktiven Mitteln zu verbessern und vielseitiger einsetzbar zu machen.It is the object of the present invention to improve a grate floor with simple structural means and make it more versatile.

Diese Aufgabe ist erfindungsgemäß durch die in Anspruch 1 und 5 beschriebenen Merkmale wie folgt gelöst.
Durch zusammenstecken von Lamellenkörpern wird ein Rostboden gebildet, der aus kleinen thermisch unempfindlichen Lamellenkörpern mit genügend Wärmeausdehnungsfugen besteht, und bei welchem die Lamellenkörper einen bis auf vorzugsweise einen Freiheitsgrad beschränkten Formschluss aufweisen.This object is achieved by the features described in claim 1 and 5 as follows.
By plugging together lamellar bodies a grate floor is formed, which consists of small thermally insensitive lamellar bodies with sufficient thermal expansion joints, and in which the lamellae have a limited to one degree of freedom, preferably positive fit.

Der solchermaßen gebildete Rostboden lässt sich äußerst vorteilhaft und vielseitig hinsichtlich der Gasdurchtritte gestalten, insbesondere wenn die Gasdurchtrittsöffnung zwischen den Lamellenkörpern durch das Zusammenfügen der Lamellenkörper gebildeten wird. Besonders vorteilhaft ist die Ausbildung der Gasaustrittsöffnung als ein in Transportrichtung geneigter Schlitz über die gesamte Breite der Lamellenkörper. Durch Überlappung der Lamellenkörper kann der Gasschlitz mit einer Mulde unterhalb der Rostoberfläche so ausgebildet werden, dass kein Schüttgut unter den Rostboden fallen kann.The grate floor thus formed can be made extremely advantageous and versatile with respect to the gas passages, especially if the gas passage opening between the lamellar bodies is formed by the assembly of the lamellar body. Particularly advantageous is the formation of the gas outlet opening as a slanted in the transport direction slot over the entire width of the disk body. By overlapping the lamellar body of the gas slot can be formed with a trough below the grate surface so that no bulk material can fall under the grate floor.

Eine beidseitige Umströmung der Lamellenkörper sichert eine gute Kühlung der Lamellenkörper und reduziert Wärmespannungen. Der Formschluss der zusammengesteckten Lamellenkörper und die freie Gestaltung der Befestigung auf eine Tragstruktur ermöglicht die Ausbildung von Wärmeausdehnungsfugen, um Verwerfungen und Risse zu vermeiden.A bilateral flow around the lamellar body ensures good cooling of the lamellar body and reduces thermal stresses. The positive fit of the assembled lamellar body and the free design of the attachment to a supporting structure allows the formation of thermal expansion joints to avoid warping and cracks.

Eine besonders vorteilhafte Ausgestaltung der vorliegenden Erfindung wird dadurch geschaffen, dass eine Trennung von Rostboden und Tragstruktur den vielseitigen Einsatz dieses Rostbodens auf unterschiedlichsten Rosten ermöglicht wie zum Beispiel für bekannte stationäre Schrägroste im Kühlereinlaufbereich, angetriebene Schubroste und Roste mit einem ebenen Rostboden sowie für diverse andere Roste, auf denen Schüttgut transportiert und wärmebehandelt wird.
Insbesondere bei allen geschlossenen Rostplatten, die eine kastenförmige Struktur aufweisen, d.h. eine mit Ausblasöffnungen versehene Deckplatte, Seitenwände, Stimwände und eine Bodenplatte, lässt sich die Deckplatte relativ leicht durch die vorliegende Erfindung eines zusammengesteckten formschlüssigen Rostbodens ersetzen. Die Ausführung des Kastenelements wird einfach und erlaubt durch die offene Zugänglichkeit, insbesondere von oben, bei der Montage eine bestmögliche und leichte Befestigung auf der Tragstruktur, allgemein als Rostträger bezeichnet. Das Kastenelement wird auch nicht durch weitere seitliche Öffnungen oder herabgesetzte Stimwände statisch geschwächt.
Insbesondere bei Verwendung für einen ebenen Rostboden wo die Zugänglichkeit seitlich nicht gegeben ist, ist eine Montage ausschließlich von oben besonders vorteilhaft. Außerdem ist die Ausgestaltung der Tragstruktur zur Aufnahme eines Rostbodens gemäß der vorliegenden Erfindung vielseitiger und kostengünstiger möglich. Auch kann die Befestigung des Rostbodens beispielsweise über eine Zentralverriegelung mittels Welle, wie in der anliegenden Zeichnung beschrieben, oder über eine vertiefte und somit geschützte Befestigung von oben erfolgen.A particularly advantageous embodiment of the present invention is created in that a separation of the grate floor and support structure allows the versatile use of this grate on a variety of gratings such as known stationary inclined grates in the radiator inlet area, powered grates and grates with a flat grate floor and various other grates on which bulk goods are transported and heat-treated.
In particular, in all closed grate plates, which have a box-shaped structure, ie, provided with exhaust openings cover plate, side walls, end walls and a bottom plate, the cover plate can be relatively easily replaced by the present invention of a mated form-fitting rust base. The design of the box element is simple and allowed by the open accessibility, especially from above, when mounting a best possible and easy attachment to the support structure, commonly referred to as a grate carrier. The box element is not statically weakened by further lateral openings or lowered end walls.
In particular, when used for a flat grate floor where the accessibility is not given sideways, mounting exclusively from above is particularly advantageous. In addition, the configuration of the support structure for receiving a grate floor according to the present invention is more versatile and cheaper possible. The attachment of the grate floor, for example, via a central locking means shaft, as described in the accompanying drawing, or via a recessed and thus protected attachment from above done.

Der Verschleiß durch die mechanische Förderung und die daraus resultierende Komprimierung sowie der Verschleiß durch Friktion einerseits und die thermische Belastung durch das Fördergut andererseits, erfordert einen ausgewogenen Kompromiss bei der Wahl der Materialien für den die Rostoberfläche bildenden Rostboden. Die Reduzierung der Verschleißteile auf die ausschließlich mit dem Fördergut in Kontakt stehenden Anlageflächen ist besonders vorteilhaft, da an das Material für den Rostboden andere Anforderungen als an die Tragstruktur gestellt werden und die Verschleißteilmasse reduziert wird.
Die vorliegende Erfindung reduziert die Verschleißteile durch Trennung von Rostboden und Tragstruktur und je nach Einsatzfall werden die Verbindungselemente von Rostboden und Tragstruktur vollständig geschützt und gelten nicht mehr als Verschleißteile.The wear caused by the mechanical promotion and the resulting compression as well as the wear due to friction on the one hand and the thermal load through the conveyed on the other hand, requires a balanced compromise in the choice of materials for the grate surface forming the grate surface. The reduction of wearing parts on the exclusively with the Conveying in contact bearing surfaces is particularly advantageous because of the material for the grate other requirements than to the support structure are made and the consumable mass is reduced.
The present invention reduces the wear parts by separating the grate floor and support structure and depending on the application, the fasteners of grate floor and support structure are completely protected and are no longer considered wear parts.

Eine besonders vorteilhafte Ausgestaltung der vorliegenden Erfindung wird dadurch geschaffen, dass die allgemein stark thermisch- und verschleißbehaftete Rostoberfläche im wesentlichen aus identischen und somit kostengünstigeren Lamellenkörpern gebildet wird. Dieser hohe Gleichteileanteil ist auch hinsichtlich der Lagerhaltung besonders vorteilhaft.A particularly advantageous embodiment of the present invention is created in that the generally highly thermally and weary grate surface is formed essentially of identical and thus cheaper lamellar bodies. This high share of equal parts is also particularly advantageous in terms of storage.

In den Zeichnungen sind Ausführungsbeispiele der Erfindung dargestellt, die im folgenden näher beschrieben werden. Es zeigen:

  • Fig. 1,2 und 3 zeigen einen Lamellenkörper (1) gemäß der vorliegenden Erfindung. Der Lamellenkörper (1) besteht aus einem die Rostoberfläche bildenden Lamellenvorderteil (2) und einem vom vorhergehenden Lamellenkörper überdeckten Lamellenhinterteil (3). An dem die Rostoberfläche bildendem Lamellenvorderteil (2) sind seitlich Profile (4) angeordnet Am Lamellenhinterteil (3) sind seitlich Gegenprofile (5) angearbeitet.
  • Fig. 4 zeigt ein Lamellenpaket (6), bestehend aus zwei Lamellenkörpern (1). Ein dritter Lamellenkörper (7) befindet sich vor dem Lamellenpaket (6). Die Profile (4) und die Gegenprofile (5) sind so geformt und angeordnet, dass die Lamellenkörper (1) ineinandergeschoben werden können. Vorteilhafterweise entsteht beim Ineinanderschieben von Profil (4) und Gegenprofil (5) eine gerade, ebene Rostoberfläche.
  • Fig. 5 zeigt eine typische Rostoberfläche (8). Die Rostoberfläche (8) wird gebildet durch hintereinander angeordnete einzelne Lamellenkörper (1). Unterhalb der Lamellenkörper (1) befindet sich ein kastenförmiger Lamellenträger (9), ähnlich dimensioniert und befestigt wie beispielsweise eine übliche moderne Rostplatte. Eine der Erfindung zugrunde liegende Möglichkeit zum Bau einer Rostplatte besteht darin, die zu einem Lamellenpaket (6) zusammengesteckten Lamellenkörper (1) auf einem kastenförmigen Lamellenträger (9) zu befestigen, indem einige Lamellenkörper (1) beidseitig Laschen (10) aufweisen, die mit entsprechenden Laschen (11) im Lamellenträger (9) fluchten und über Wellen (12), die durch die Lamellenträgerstimwände (13) eingeschoben werden, Lamellenkörper (1) und Lamellenträger (9) miteinander verbinden. Die Öffnungen für die Wellen (12) in den Lamellenträgerstirnwänden (13) werden vorzugsweise durch einstellbare Frontplatten zur Reduzierung der Schubspalte verschlossen und somit die Wellen (12) gegen herausfallen gesichert.
  • Fig. 6,7 und 8 zeigen, wie mit einer Erfindung der im Patentanspruch 1 genannten Art ein ebener Rostboden aufgebaut werden kann. Vorteilhafterweise kann ein solcher Rostboden auch mit einer Zentralverriegelung versehen sein. Am Lamellenträger (9) sind auf jeder Seite Laschen (14) angebracht. Die Augen dieser Laschen befinden sich in einer Flucht. In die Laschenaugen wird eine Welle (15) hinein geschoben. Diese Welle (15) ist an einer Seite bearbeitet und weist deshalb eine Fläche (16) auf. Zur Montage werden die Wellen (15) so gedreht, dass die Fläche (16) zu den jeweiligen Außenseiten des Lamellenträgers (9) weist. Die zu befestigenden Lamellenkörper (22) sind an den Seiten mit Schwertern (17) versehen. Diese Schwerter (17) sind unten breiter ausgeführt. In der Wellenposition, in der die Flächen (16) nach außen weisen, lassen sich die Lamellenkörper (22) auf den Lamellenträger (9) auflegen. Durch verdrehen der Wellen (15) werden die Lamellenkörper (22) fixiert. Auf diese Weise lässt sich ein beliebig langer Rostboden aufbauen. Fig. 8 zeigt einen Schnitt der Fig. 7
  • Fig. 9 zeigt eine weitere vorteilhafte Ausgestaltung der Erfindung. Bei dieser Ausführung ist das Führungsprofil (18) offen. Das Lamellenhinterteil (19) fungiert gleichsam als Gegenprofil (20). Eine formschlüssige Verbindung entsteht durch das seitliche Aufschieben eines Lamellenkörpers (21) auf den vorherigen Lamellenkörper (23).
In the drawings, embodiments of the invention are shown, which are described in more detail below. Show it:
  • FIGS. 1, 2 and 3 show a lamellar body (1) according to the present invention. The lamellar body (1) consists of a louver front part (2) forming the grate surface and a lamella rear part (3) covered by the preceding lamellar body. Profiles (4) are laterally arranged on the lamella front part (2) forming the grate surface. On the lamella rear part (3), counterprofiles (5) are laterally worked on.
  • Fig. 4 shows a plate pack (6) consisting of two lamellar bodies (1). A third disk body (7) is located in front of the disk pack (6). The profiles (4) and the counter profiles (5) are shaped and arranged so that the lamellar body (1) can be pushed into each other. Advantageously, when telescoping profile (4) and counter profile (5) creates a straight, flat grate surface.
  • Fig. 5 shows a typical grate surface (8). The grate surface (8) is formed by individual lamellar bodies (1) arranged one behind the other. Below the lamellar body (1) is a box-shaped plate carrier (9), similarly dimensioned and fixed as for example a conventional modern grate plate. One of the invention underlying possibility for the construction of a grate plate is to a lamellae (6) assembled lamellar body (1) on a box-shaped plate carrier (9) to fix by some lamellar body (1) on both sides tabs (10) with corresponding lugs (11) in the plate carrier (9) are aligned and connect via shafts (12), which are inserted through the Lamellenträgerstimwände (13), lamellar body (1) and plate carrier (9) together. The openings for the shafts (12) in the slat support end walls (13) are preferably closed by adjustable front plates to reduce the thrust column and thus the shafts (12) secured against falling out.
  • FIGS. 6, 7 and 8 show how, with an invention of the type mentioned in patent claim 1, a flat grid floor can be constructed. Advantageously, such a grate floor can also be provided with a central locking. On the plate carrier (9) tabs (14) are mounted on each side. The eyes of these tabs are in flight. In the tab eyes is a shaft (15) pushed into it. This shaft (15) is machined on one side and therefore has a surface (16). For assembly, the shafts (15) are rotated so that the surface (16) facing the respective outer sides of the disk carrier (9). The lamellar bodies (22) to be fastened are provided with swords (17) on the sides. These swords (17) are made wider below. In the shaft position, in which the surfaces (16) face outward, the lamellar bodies (22) can be placed on the plate carrier (9). By rotating the shafts (15), the lamellar bodies (22) are fixed. In this way, you can build up an arbitrarily long rust floor. FIG. 8 shows a section of FIG. 7. FIG
  • Fig. 9 shows a further advantageous embodiment of the invention. In this embodiment, the guide profile (18) is open. The slat rear part (19) acts as a counter profile (20). A positive connection is created by the lateral sliding of a disk body (21) on the previous disk body (23).

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1.1.
Lamellenkörperlamellar bodies
2.Second
LamellenvorderteilLamella front
3.Third
LamellenhinterteilSlats rump
4.4th
Profilprofile
5.5th
Gegenprofilcounter profile
6.6th
Lamellenpaketdisk pack
7.7th
Lamellenkörper wie 1.Lamellar body like 1.
8.8th.
Rostoberflächegrate surface
9.9th
Lamellenträgerplate carrier
10.10th
Laschen am LamellenkörperTabs on the lamellar body
11.11th
Laschen am LamellenträgerTabs on the plate carrier
12.12th
Wellewave
13.13th
LamellenträgerstirnwändePlate carrier end walls
14.14th
Laschen am LamellenträgerTabs on the plate carrier
15.15th
Welle mit FlächeWave with surface
16.16th
Fläche an WelleSurface on shaft
17.17th
Schwertsword
18.18th
Führungsprofil seitlich offenGuide profile open at the side
19.19th
LamellenhinterteilSlats rump
20.20th
Gegenprofilcounter profile
21.21st
Lamellenkörper zum seitlichen AufschiebenSlat body for lateral sliding
22.22nd
Lamellenkörper mit SchwertSlat body with sword
23.23rd
Lamellenkörper zum seitlichen AufschiebenSlat body for lateral sliding

Claims (9)

  1. Method for constructing a grate base composed of lamella bodies (1, 21), wherein individual lamella bodies (1, 21) on which profiles (4, 5) are disposed or formed are successively inserted into each other, wherein gas vents are formed between the lamella bodies (1, 21), in which the profiles (4, 5) are disposed or formed on the front (2) of the lamella bodies and on the back (3) of the lamella bodies and fitted or inserted into each other such that the profiles (4, 5) of the respective front (2) of the lamella bodies are joined in form-locking manner to those of the back (3) of the preceding lamella bodies and in that the lamella bodies (1, 21) are secured by fixed or movable longitudinal bars or connecting elements.
  2. Method according to claim 1, characterized in that several lamella bodies (1, 21) are successively inserted into each other, wherein at least the first and last lamella bodies (1, 21) have a moulding to receive a connecting element and this connecting element joins the lamella bodies (1, 21) together to form a grate base segment which is inserted onto or into appropriately dimensioned openings in the grate substructure or support structure or lamella bodies supports (9) and can be joined in various ways.
  3. Method according to claim 1, characterized in that lamella bodies (1, 21) are inserted as lamella bundles into a casing open to the top, wherein one or more lamella bodies (1, 21) have mouldings that are similar or identical to the mouldings on the casing, and these mouldings of the lamella bodies (1, 21) are joined in form-locking manner to the casing by introducing a connecting element through one or both ends of the casing.
  4. Method according to claim 1, characterized in that a grate base of unlimited length can be assembled from any number of lamella bodies (1, 21), wherein several lamella bodies (1, 21) have a moulding designed such that a connecting element as central closure, which is housed at a support structure, can join or release these lamella bodies (1, 21) by a brief turning or pushing movement and thus assembly and maintenance work is significantly reduced.
  5. Grate base, consisting of lamella bodies (1, 21), wherein individual lamella bodies (1, 21) on which profiles (4, 5) are disposed or formed are arranged behind one another and gas vents are formed between the lamella bodies (1, 21), in which the lamella bodies (1, 21) have profiles (4) at the front (2) of the lamella bodies and counter-profiles (5) at the back (3) of the lamella bodies which are inserted into each other in form-locking manner to join adjacent lamella bodies (1, 21), wherein the lamella bodies (1, 21) are secured by fixed or movable longitudinal bars or connecting elements.
  6. Device according to claim 5, characterized in that the gas vent is shaped into a trough below the grate surface (8) and thus prevents material from falling through the grate.
  7. Device according to claim 5, characterized in that several lamella bodies (1, 21) are successively inserted into each other, wherein at least the first and the last lamella bodies (1, 21) have a moulding to receive a connecting element and this connecting element forms with the lamella bodies (1, 21) a grate base segment which can be joined to the grate substructure or support structure in various ways.
  8. Device according to claim 5, characterized in that lamella bundles (6) consist of lamella bodies (1, 21) which lie in a casing open to the top, wherein one or more lamella bodies (1, 21) have mouldings that are similar or identical to the mouldings on the casing, wherein one or more connecting elements join the mouldings on the lamella bodies (1, 21) to the mouldings on the casing and thus form a connection between lamella bodies (1, 21) and casing.
  9. Device according to claim 5, characterized in that from any number of lamella bodies (1, 21) a grate base of unlimited length is formed which is joined to the grate substructure or support structure via a central closure, wherein several lamella bodies (1, 21) have a moulding designed such that a connecting element which is housed at the grate substructure or support structure joins them by a brief turning or pushing movement and thus significantly reduces the assembly and maintenance work.
EP02754377A 2001-07-17 2002-07-17 Device and method for constructing a slatted floor consisting of positively connected lamellar structures Expired - Lifetime EP1407189B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10133973 2001-07-17
DE10133973A DE10133973B4 (en) 2001-07-17 2001-07-17 Grate and method for constructing a grate consisting of lamellar bodies which are positively connected to one another
PCT/DE2002/002624 WO2003008863A1 (en) 2001-07-17 2002-07-17 Device and method for constructing a slatted floor consisting of positively connected lamellar structures

Publications (2)

Publication Number Publication Date
EP1407189A1 EP1407189A1 (en) 2004-04-14
EP1407189B1 true EP1407189B1 (en) 2007-02-28

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EP02754377A Expired - Lifetime EP1407189B1 (en) 2001-07-17 2002-07-17 Device and method for constructing a slatted floor consisting of positively connected lamellar structures

Country Status (5)

Country Link
EP (1) EP1407189B1 (en)
AT (1) ATE355492T1 (en)
DE (2) DE10133973B4 (en)
ES (1) ES2282438T3 (en)
WO (1) WO2003008863A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10305113A1 (en) * 2003-02-07 2004-08-19 Polysius Ag Ventilation element for a cooler
DE102004045927A1 (en) * 2004-09-22 2006-03-30 Heike Gerking Method for construction of lamella grate plate is such that during thermal expansion of lamellae their displacement does not lead to deformation of base frame, but deformation is compensated for on other components
PL232801B1 (en) * 2017-03-14 2019-07-31 Pellasx Spolka Z Ograniczona Odpowiedzialnoscia Spolka Komandytowa Combustion chamber burner grate for combustion of pellets and other solid fuels
EP3667222A1 (en) * 2018-12-11 2020-06-17 Paul Wurth S.A. Method for fitting or retrofitting a sinter cooler

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE251118C (en) *
US2431799A (en) * 1945-11-08 1947-12-02 Fuller Co Cooler having overlapping replaceable grates
DE3049086C2 (en) * 1980-12-24 1983-07-14 Widmer & Ernst AG, 5430 Wettingen Grate bar row for furnace grates in incinerators
GB2120367A (en) * 1982-05-13 1983-11-30 Voelund Miljoeteknik A grate block for the grate section of an incinerator plant
DE3332592C1 (en) * 1983-09-08 1985-05-15 Karl von Dipl.-Ing. Dipl.-Wirtsch.-Ing. 3057 Neustadt Wedel Grate floor composed of rust elements for bulk goods, such as cement clinker
EP0549816B2 (en) * 1991-09-09 2000-07-19 Abrasion Engineering Company Limited Grid rod for the construction of a grid
DE4441009C2 (en) * 1994-11-17 2001-03-29 Karl Von Wedel Grate plate arrangement
DE19851471A1 (en) * 1998-11-09 2000-05-11 Mitteldeutsche Feuerungs Und U Feed grate cover for combustion furnace has narrow S-shaped gaps to allow very little material to fall through and uses stair-step-type bars in close contact

Also Published As

Publication number Publication date
DE10133973B4 (en) 2004-12-30
WO2003008863A1 (en) 2003-01-30
ATE355492T1 (en) 2006-03-15
DE10133973A1 (en) 2003-02-06
DE50209594D1 (en) 2007-04-12
ES2282438T3 (en) 2007-10-16
EP1407189A1 (en) 2004-04-14

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