EP0686821B1 - Cooler adapted for two layers of charge - Google Patents

Cooler adapted for two layers of charge Download PDF

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Publication number
EP0686821B1
EP0686821B1 EP95105650A EP95105650A EP0686821B1 EP 0686821 B1 EP0686821 B1 EP 0686821B1 EP 95105650 A EP95105650 A EP 95105650A EP 95105650 A EP95105650 A EP 95105650A EP 0686821 B1 EP0686821 B1 EP 0686821B1
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EP
European Patent Office
Prior art keywords
cooler
grate
layer
finished
lower layer
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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.)
Expired - Lifetime
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EP95105650A
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German (de)
French (fr)
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EP0686821A1 (en
Inventor
Bernd Dipl.-Ing. Nienaber
Hermann Dipl.-Ing. Niemerg
Günter Dipl.-Ing. Driemeier
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ThyssenKrupp Industrial Solutions AG
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Krupp Polysius AG
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D13/00—Stationary devices, e.g. cold-rooms
    • F25D13/06—Stationary devices, e.g. cold-rooms with conveyors carrying articles to be cooled through the cooling space
    • 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

Definitions

  • the invention relates to a two-layer cooler with a Grate surface, according to the preamble of the claim 1.
  • a two-layer cooler of the type mentioned above is known for example from DE-C-10 97 346.
  • this known cooler is at the drain end Grating (cooler end) as a separating device for separating at least one of the upper and lower refrigerated goods layers mechanical shovel arranged with its cutting edge engages directly in the refrigerated goods and this in a divides upper and lower layers.
  • the essential The disadvantage of such a design is the high mechanical and thermal wear, which the in the cutting edge immersed in hot refrigerated goods and thus also the Bucket is exposed. This results in the known execution a considerable amount of maintenance and also a very undesirable susceptibility to failure.
  • the invention is therefore based on the object Two-layer cooler in the preamble of claim 1 assumed type so that in the area of Separation device the freedom from maintenance and fault safety of the cooler can be significantly improved.
  • This object is achieved in that at the cooler end as a separation device for separating the top and bottom refrigerated goods layer a stationary goods zone is provided, which is connected upstream of the crusher, flat inclined chute-like guide surface is.
  • the separation device not by a separate mechanical element, but formed by a resting zone of the refrigerated goods is also affected in the area of the separating device inevitable wear alone between good particles moving relative to each other.
  • abrasion is - unlike wear and tear mechanical cutting edge or shovel - by no means annoying, since the resulting fine particles be carried away with the finished goods and the dormant Goods zone automatically from the newly supplied material flow regenerated.
  • FIG. 1 in a schematic overall view Two-layer cooler is used as a moving grate cooler formed, with successive rows of plates 1, 2 are arranged alternately stationary and movable.
  • the plate rows of the cooler are divided into several groups 3, 4, 5 summarized, the separate fans 6 and 7 or 8, 9 with cooling air.
  • a lower layer 10 is already on Pre-cooled goods to be cooled on the grate surface of the cooler given up.
  • On this lower layer 10 is an upper Layer 11 of hot refrigerated goods applied.
  • the pre-chilled Chilled goods of the lower layer 10 are placed over a Shaft 12 fed by a bunker wall 13 from a shaft 14 is separated, through which the hot Refrigerated goods - for example coming from a rotary kiln - applied to the lower layer 10 of the two-layer cooler becomes.
  • a crusher 16 is furthermore arranged at the cooler end, which is connected upstream of a chute 17, which is the good of top layer 11 feeds the crusher 16.
  • This chute 17 is inclined so flat that there is one on it dormant goods zone 18. It provides a separation device represents layers 10 and 11 at the end of the cooler separates from each other by dividing the good of the lower Retains layer 10 and into the finished goods shaft 15 conducts while the material of the upper layer 11 over the dormant goods zone 18 can slide away, so that it to Breaker 16 arrives.
  • the crusher 16 coarser parts of the good crushed upper layer 11. After passing the crusher 16 the material of the upper layer 11 arrives as circulating material back to the beginning of the cooler (conveyor line 19) and is there as the lower layer 10 on the grate surface of the Abandoned cooler.
  • the lower end of the finished goods chute 15 opens out Distance over a storage area 20 from a horizontally arranged table is formed. Its dimensions and its distance from the lower end of the finished goods chute 15 are chosen so that the bulk cone 21a of the finished goods emerging from the finished goods chute 15 21 on the surface of the storage surface 20 forming table opens into the edges of the table.
  • a discharge member 22 is located in the storage surface 20 Direction of the double arrow 23 to and fro.
  • the stroke speed and the stroke length of this as a bar trained discharge member 22 are changeable.
  • the entrance opening of the finished goods chute 15 at the top is formed by a sieve or grate Classifier 24 covered.
  • the finished goods chute 15 extends over the entire Width of the cooler (see Fig. 3). Its cross section widens towards the bottom (see Fig. 2).
  • the grate plates are movable Plate rows 2 from a swing frame 25 worn, the back and forth in the direction of the double arrow 26 is movable while the plates of the rows of plates 1 are fixed.
  • the last movable plate row 2a in the conveying direction is arranged so that it covers the area of the classifier 24 at least partially covered.
  • the movable rows of plates 2 can in sections be connected to a channel that connects to the Swing frame 25 moves and a sliding seal is supplied with air.
  • the lower layer 10 of pre-chilled goods protects the grille surface of the cooler from too high thermal stress and heavy wear by the hot refrigerated goods that form the upper layer 11.
  • the two layers are covered by of the stationary goods zone 18 from each other Cut.
  • a change in the strength of the top and lower layer is by adjusting the altitude the separator possible.
  • the height of the resting goods zone 18 (and thus the thickness of the lower layer 10) by reduction the inclination of the chute 17 can be increased (and vice versa).
  • Influencing the relative Layer thickness can also be increased, for example or lowering the chute 17 (with the same Chute inclination).
  • Classifier 24 holds larger chunks of material, that are present in the lower layer 10. These chunks are then either autogenous Crushing in the material of the lower layer above the classification device 24, or they get into the dormant goods zone 18 or in the upper layer 11. Im in the latter case they pass crusher 16 again.
  • the finished goods 21 jams on the storage surface 20 because the bulk cone 21a on the surface of the storage surface 20 forming tables within the table edges flows. Regardless of the existing one - in operation possibly changing - grain composition of the finished goods 21 is therefore the discharged amount of goods exclusively by the lifting speed and the Stroke length of the discharge member 22 determined.
  • the last movable plate row 2a of the cooler has extended push edges so that the sieve bars of the Classifying device 24 completely or partially covered will. This will work even when using large attachments always get into the area of the classification device 24 at least the one through the last movable row of plates Keep the swept area clear during the return stroke. This area is so large that the quantity of material from the lower layer 10 passes through.
  • the screening rods of the classification device 24 prevent that large pieces of good get into the finished goods chute 15. This way, constipation between the lower end of the finished goods chute 15 and the Storage surface 20 forming table avoided.
  • the discharge member 22 designed as a bar becomes mechanical or hydraulically driven. It is convenient protected against wear by cast elements.
  • the two partial flows of the finished product 21, which by the Discharge member 22 are conveyed away from the storage surface 20, can either - as indicated in Fig.1 - to a common conveyor line 27 summarized or separately to be transported further.
  • FIG 5 shows a practical embodiment in a variant of the devices downstream of the crusher 16 for the discharge of the goods in circulation (i.e. the goods the upper layer 11).
  • the crusher 16 is followed by a sieve grate 30, the Passage openings are dimensioned such that chopped goods are passed through the sieve grate, larger foreign objects (e.g. broken ones Rings of the crusher 16) are held back.
  • larger foreign objects e.g. broken ones Rings of the crusher 16
  • a chute 31 connects to the sieve grate 30, the one is the material in circulation (conveyor line 19 according to FIG. 1) a main outlet 32 feeding a transport device and two bypass outlets 33, 34. Through the latter two bypass outlets 33, 34 can be selected Cooled goods of the upper layer 11 are removed as finished goods will. It then arrives according to the conveyor line 28 (according to Fig.1) in the conveyor line 27 of the finished goods.
  • the three outlets 32, 33 and 34 are through slide 35 up to 37 can be released or locked.
  • the bypass outlets 33, 34 are also emergency routes Failure of a transport device for the circulating goods.
  • bypass outlets 33, 34 are basic closed.
  • the slides 36, 37 are opened and the slider 35 closed, the cooler can, if desired also operate in one shift.
  • the property is erased into this case in the chute 31 as by the Good cone 38 indicated.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Disintegrating Or Milling (AREA)
  • Adjustment And Processing Of Grains (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
  • Semiconductor Lasers (AREA)

Abstract

A double layered cooling bed is made up of a lower precooled lower layer (10) coated with an upper layer (11) of hot material. The layers are separated by a wall-like dam (18) made up of some of the material. The top layer passes to crusher rollers (16) while the bottom layer falls through shaft (15) onto table (20). The height of the dam (18) is controlled by the inclination of slide surface (17) which can be adjusted. <IMAGE>

Description

Die Erfindung betrifft einen Zweischichtkühler mit einer Rostfläche, entsprechend dem Oberbegriff des Anspruches 1.The invention relates to a two-layer cooler with a Grate surface, according to the preamble of the claim 1.

Ein Zweischichtkühler der vorstehend genannten Gattung ist beispielsweise durch die DE-C-10 97 346 bekannt. Bei diesem bekannten Kühler ist am Entleerungsende des Rostes (Kühlerende) als Trenneinrichtung zum Trennen der oberen und unteren Kühlgutschichten wenigstens eine mechanische Schaufel angeordnet, die mit ihrer Schneide direkt in das Kühlgut eingreift und dieses in eine obere und untere Schicht aufteilt. Der wesentliche Nachteil einer derartigen Ausführung liegt in dem hohen mechanischen und thermischen Verschleiß, dem die in das heiße Kühlgut eintauchende Schneide und damit auch die Schaufel ausgesetzt ist. Dadurch ergibt sich bei der bekannten Ausführung ein beträchtlicher Wartungsaufwand und eine gleichfalls sehr unerwünschte Störanfälligkeit.A two-layer cooler of the type mentioned above is known for example from DE-C-10 97 346. In this known cooler is at the drain end Grating (cooler end) as a separating device for separating at least one of the upper and lower refrigerated goods layers mechanical shovel arranged with its cutting edge engages directly in the refrigerated goods and this in a divides upper and lower layers. The essential The disadvantage of such a design is the high mechanical and thermal wear, which the in the cutting edge immersed in hot refrigerated goods and thus also the Bucket is exposed. This results in the known execution a considerable amount of maintenance and also a very undesirable susceptibility to failure.

Der Erfindung liegt daher die Aufgabe zugrunde, einen Zweischichtkühler der im Oberbegriff des Anspruches 1 vorausgesetzten Art so auszubilden, daß im Bereich der Trenneinrichtung die Wartungsfreiheit und Störungssicherheit des Kühlers wesentlich verbessert werden.The invention is therefore based on the object Two-layer cooler in the preamble of claim 1 assumed type so that in the area of Separation device the freedom from maintenance and fault safety of the cooler can be significantly improved.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß am Kühlerende als Trenneinrichtung zur Trennung der oberen und unteren Kühlgutschicht eine ruhende Gutzone vorgesehen ist, die auf einer dem Brecher vorgeschalteten, flach geneigten schurrenartigen Leitfläche ausgebildet ist. This object is achieved in that at the cooler end as a separation device for separating the top and bottom refrigerated goods layer a stationary goods zone is provided, which is connected upstream of the crusher, flat inclined chute-like guide surface is.

Da bei der erfindungsgemäßen Ausführung die Trenneinrichtung nicht durch ein gesondertes mechanisches Element, sondern durch eine ruhende Zone des Kühlgutes gebildet wird, wirkt sich auch der im Bereich der Trenneinrichtung unvermeidliche Verschleiß allein zwischen relativ zueinander bewegten Gutteilchen aus. Ein derartiger Abrieb ist jedoch - anders als ein Verschleiß einer mechanischen Schneide bzw. Schaufel - keineswegs störend, da die hierbei entstehenden Feingutteilchen mit dem Fertiggut abgeführt werden und sich die ruhende Gutzone aus dem neu zugeführten Materialstrom selbsttätig regeniert.Since in the embodiment of the invention, the separation device not by a separate mechanical element, but formed by a resting zone of the refrigerated goods is also affected in the area of the separating device inevitable wear alone between good particles moving relative to each other. Such one However, abrasion is - unlike wear and tear mechanical cutting edge or shovel - by no means annoying, since the resulting fine particles be carried away with the finished goods and the dormant Goods zone automatically from the newly supplied material flow regenerated.

Diese und weitere Merkmale der Erfindung gehen aus der folgenden Beschreibung eines in der Zeichnung veranschaulichten Ausführungsbeispieles hervor. In der Zeichnung zeigen

Fig.1
eine schematische Gesamtansicht eines erfindungsgemäßen Zweischichtkühlers,
Fig.2
eine Teilansicht der für die Erfindung wesentlichen Elemente am Ende des Zweischichtkühlers gemäß Fig.1,
Fig.3
eine Aufsicht auf das Kühlerende,
Fig.4
eine Aufsicht auf Fertiggutschacht, Staufläche und Austragsorgan,
Fig.5
ein Detail einer Variante des Umlaufgutaustrages.
These and other features of the invention will become apparent from the following description of an embodiment illustrated in the drawing. Show in the drawing
Fig. 1
1 shows a schematic overall view of a two-layer cooler according to the invention,
Fig. 2
2 shows a partial view of the elements essential to the invention at the end of the two-layer cooler according to FIG. 1,
Fig. 3
a supervision of the cooler end,
Fig. 4
a supervision of the finished goods chute, storage area and discharge device,
Fig. 5
a detail of a variant of the circulating goods discharge.

Der in Fig.1 in einer schematischen Gesamtansicht dargestellte Zweischichtkühler ist als Schubrostkühler ausgebildet, wobei aufeinanderfolgende Plattenreihen 1, 2 abwechselnd stationär und beweglich angeordnet sind.The shown in Figure 1 in a schematic overall view Two-layer cooler is used as a moving grate cooler formed, with successive rows of plates 1, 2 are arranged alternately stationary and movable.

Die Plattenreihen des Kühlers sind zu mehreren Gruppen 3, 4, 5 zusammengefaßt, die gesondert über Ventilatoren 6 und 7 bzw. 8, 9 mit Kühlluft beaufschlagt werden.The plate rows of the cooler are divided into several groups 3, 4, 5 summarized, the separate fans 6 and 7 or 8, 9 with cooling air.

Am Kühleranfang wird eine untere Schicht 10 von bereits vorgekühltem Kühlgut auf die Rostfläche des Kühlers aufgegeben. Auf diese untere Schicht 10 wird eine obere Schicht 11 von heißem Kühlgut aufgebracht. Das vorgekühlte Kühlgut der unteren Schicht 10 wird über einen Schacht 12 zugeführt, der durch eine Bunkerwand 13 von einem Schacht 14 getrennt ist, durch den das heiße Kühlgut - beispielsweise von einem Drehrohrofen kommend - auf die untere Schicht 10 des Zweischichtkühlers aufgegeben wird.At the beginning of the cooler, a lower layer 10 is already on Pre-cooled goods to be cooled on the grate surface of the cooler given up. On this lower layer 10 is an upper Layer 11 of hot refrigerated goods applied. The pre-chilled Chilled goods of the lower layer 10 are placed over a Shaft 12 fed by a bunker wall 13 from a shaft 14 is separated, through which the hot Refrigerated goods - for example coming from a rotary kiln - applied to the lower layer 10 of the two-layer cooler becomes.

Am Kühlerende ist zum Abzug des Gutes der unteren Schicht 10 ein Fertiggutschacht 15 vorgesehen, dessen Einzelheiten anhand der Fig.2, 3 und 4 noch näher erläutert werden.At the end of the cooler, the bottom is to be removed Layer 10 a finished goods shaft 15 is provided, the Details explained with reference to Figures 2, 3 and 4 will.

Am Kühlerende ist weiterhin ein Brecher 16 angeordnet, dem eine Schurre 17 vorgeschaltet ist, die das Gut der oberen Schicht 11 dem Brecher 16 zuführt. Diese Schurre 17 ist dabei so flach geneigt, daß sich auf ihr eine ruhende Gutzone 18 ausbildet. Sie stellt eine Trenneinrichtung dar, die am Kühlerende die Schichten 10 und 11 voneinander trennt, indem sie das Gut der unteren Schicht 10 zurückhält und in den Fertiggutschacht 15 leitet, während das Gut der oberen Schicht 11 über die ruhende Gutzone 18 hinweggleiten kann, so daß es zum Brecher 16 gelangt.A crusher 16 is furthermore arranged at the cooler end, which is connected upstream of a chute 17, which is the good of top layer 11 feeds the crusher 16. This chute 17 is inclined so flat that there is one on it dormant goods zone 18. It provides a separation device represents layers 10 and 11 at the end of the cooler separates from each other by dividing the good of the lower Retains layer 10 and into the finished goods shaft 15 conducts while the material of the upper layer 11 over the dormant goods zone 18 can slide away, so that it to Breaker 16 arrives.

Durch den Brecher 16 werden gröbere Teile des Gutes der oberen Schicht 11 zerkleinert. Nach Passieren des Brechers 16 gelangt das Gut der oberen Schicht 11 als Umlaufgut zum Kühleranfang zurück (Förderlinie 19) und wird dort als untere Schicht 10 auf die Rostfläche des Kühlers aufgegeben.The crusher 16 coarser parts of the good crushed upper layer 11. After passing the crusher 16 the material of the upper layer 11 arrives as circulating material back to the beginning of the cooler (conveyor line 19) and is there as the lower layer 10 on the grate surface of the Abandoned cooler.

Das untere Ende des Fertiggutschachtes 15 mündet mit Abstand über einer Staufläche 20 aus, die durch einen horizontal angeordneten Tisch gebildet wird. Seine Abmessungen und sein Abstand vom unteren Ende des Fertiggutschachtes 15 sind so gewählt, daß der Schüttgutkegel 21a des aus dem Fertiggutschacht 15 austretenden Fertiggutes 21 auf der Oberfläche des die Staufläche 20 bildenden Tisches innerhalb der Tischränder mündet.The lower end of the finished goods chute 15 opens out Distance over a storage area 20 from a horizontally arranged table is formed. Its dimensions and its distance from the lower end of the finished goods chute 15 are chosen so that the bulk cone 21a of the finished goods emerging from the finished goods chute 15 21 on the surface of the storage surface 20 forming table opens into the edges of the table.

Längs der Staufläche 20 ist ein Austragsorgan 22 in Richtung des Doppelpfeiles 23 hin- und herbeweglich. Die Hubgeschwindigkeit und die Hublänge dieses als Balken ausgebildeten Austragsorganes 22 sind veränderlich.A discharge member 22 is located in the storage surface 20 Direction of the double arrow 23 to and fro. The stroke speed and the stroke length of this as a bar trained discharge member 22 are changeable.

Die Eintrittsöffnung des Fertiggutschachtes 15 am oberen Schachtende ist durch eine als Sieb oder Rost ausgebildete Klassiereinrichtung 24 abgedeckt. The entrance opening of the finished goods chute 15 at the top The shaft end is formed by a sieve or grate Classifier 24 covered.

Der Fertiggutschacht 15 erstreckt sich über die gesamte Breite des Kühlers (vgl. Fig.3). Sein Querschnitt erweitert sich nach unten zu (vgl. Fig.2).The finished goods chute 15 extends over the entire Width of the cooler (see Fig. 3). Its cross section widens towards the bottom (see Fig. 2).

Wie Fig.2 erkennen läßt, werden die Rostplatten der beweglichen Plattenreihen 2 von einem Schwingrahmen 25 getragen, der in Richtung des Doppelpfeiles 26 hin- und herbeweglich ist, während die Platten der Plattenreihen 1 fest angeordnet sind.As Fig.2 reveals, the grate plates are movable Plate rows 2 from a swing frame 25 worn, the back and forth in the direction of the double arrow 26 is movable while the plates of the rows of plates 1 are fixed.

Die in Förderrichtung letzte bewegliche Plattenreihe 2a ist so angeordnet, daß sie den Bereich der Klassiereinrichtung 24 wenigstens teilweise überdeckt.The last movable plate row 2a in the conveying direction is arranged so that it covers the area of the classifier 24 at least partially covered.

Die beweglichen Plattenreihen 2 können abschnittweise mit einem Kanal verbunden sein, der sich mit dem Schwingrahmen 25 bewegt und über eine Schiebedichtung mit Luft versorgt wird.The movable rows of plates 2 can in sections be connected to a channel that connects to the Swing frame 25 moves and a sliding seal is supplied with air.

Das vom Austragsorgan 22 nach beiden Seiten über den vorderen und hinteren Rand der Staufläche 20 ausgetragene Fertiggut 21 wird über eine nicht veranschaulichte Einrichtung (Förderlinie 27) weitertransportiert. Gewünschtenfalls kann ein Teil des Gutes der oberen Schicht 11 nach Passieren des Brechers 16 dem Fertiggut beigemischt werden (Förderlinie 28).The from the discharge member 22 on both sides of the front and rear edge of the storage surface 20 discharged Finished goods 21 are not shown Facility (funding line 27) transported on. If desired can be part of the good of the upper Layer 11 after passing through the crusher 16 of the finished product are added (funding line 28).

Rostdurchfallgut, das zwischen den Rostplatten der festen und beweglichen Plattenreihen 1, 2 nach unten fällt, wird über eine Transporteinrichtung 29 entweder der Förderlinie 27 des Fertiggutes oder der Förderlinie 19 des Umlaufgutes zugeleitet. Rust diarrhea that is between the grate plates of the solid and movable plate rows 1, 2 down falls, either via a transport device 29 the conveyor line 27 of the finished goods or the conveyor line 19 of the goods in circulation.

Die Funktion des Zweischichtkühlers dürfte nach den obigen Erläuterungen ohne weiteres verständlich sein:The function of the two-layer cooler should be according to the The above explanations are easy to understand:

Die untere Schicht 10 von bereits vorgekühltem Kühlgut schützt die Rostfläche des Kühlers vor einer zu hohen thermischen Belastung sowie vor starkem Verschleiß durch das heiße Kühlgut, das die obere Schicht 11 bildet.The lower layer 10 of pre-chilled goods protects the grille surface of the cooler from too high thermal stress and heavy wear by the hot refrigerated goods that form the upper layer 11.

Am Kühlerende werden die beiden Schichten durch die von der ruhenden Gutzone 18 gebildete Trenneinrichtung voneinander getrennt. Eine Veränderung der Stärke der oberen und unteren Schicht ist durch Einstellung der Höhenlage der Trenneinrichtung möglich. So kann beispielsweise die Höhe der ruhenden Gutzone 18 (und damit die Stärke der unteren Schicht 10) durch Verringerung der Neigung der Schurre 17 vergrößert werden (und umgekehrt). Selbstverständlich sind im Rahmen der Erfindung auch andere konstruktive Möglichkeiten zur Beeinflussung der relativen Stärke der oberen und unteren Schicht möglich. Eine Beeinflussung der relativen Schichtstärke kann beispielsweise auch durch Anheben oder Absenken der Schurre 17 (bei gleichbleibender Schurrenneigung) erfolgen.At the end of the cooler, the two layers are covered by of the stationary goods zone 18 from each other Cut. A change in the strength of the top and lower layer is by adjusting the altitude the separator possible. For example the height of the resting goods zone 18 (and thus the thickness of the lower layer 10) by reduction the inclination of the chute 17 can be increased (and vice versa). Of course, are within the scope of the invention other constructive options for influencing the relative strength of the top and bottom Shift possible. Influencing the relative Layer thickness can also be increased, for example or lowering the chute 17 (with the same Chute inclination).

Die am oberen Ende des Fertiggutschachtes 15 vorgesehene Klassiereinrichtung 24 hält größere Gutbrocken, die in der unteren Schicht 10 vorhanden sind, zurück. Diese Gutbrocken unterliegen dann entweder einer autogenen Zerkleinerung im Gut der unteren Schicht oberhalb der Klassiereinrichtung 24, oder sie gelangen in die ruhende Gutzone 18 oder in die obere Schicht 11. Im letzteren Falle passieren sie erneut den Brecher 16. The one provided at the upper end of the finished goods chute 15 Classifier 24 holds larger chunks of material, that are present in the lower layer 10. These chunks are then either autogenous Crushing in the material of the lower layer above the classification device 24, or they get into the dormant goods zone 18 or in the upper layer 11. Im in the latter case they pass crusher 16 again.

Das Fertiggut 21 staut sich auf der Staufläche 20, da der Schüttgutkegel 21a auf der Oberfläche des die Staufläche 20 bildenden Tisches innerhalb der Tischränder mündet. Unabhängig von der jeweils vorhandenen - im Betrieb eventuell wechselnden - Körnungszusammensetzung des Fertiggutes 21 wird daher die ausgetragene Gutmenge ausschließlich durch die Hubgeschwindigkeit und die Hublänge des Austragsorganes 22 bestimmt.The finished goods 21 jams on the storage surface 20 because the bulk cone 21a on the surface of the storage surface 20 forming tables within the table edges flows. Regardless of the existing one - in operation possibly changing - grain composition of the finished goods 21 is therefore the discharged amount of goods exclusively by the lifting speed and the Stroke length of the discharge member 22 determined.

Die Erfindung wurde vorstehend am Beispiel eines Schubrostkühlers erläutert. Sie ist jedoch selbstverständlich auch bei anderen Zweischichtkühlern, insbesondere bei Zweischicht-Wanderrostkühlern, vorteilhaft einsetzbar.The invention was above using the example of a Chill grate cooler explained. However, it is a matter of course also with other two-layer coolers, in particular with two-layer traveling grate coolers, advantageous applicable.

Die letzte bewegliche Plattenreihe 2a des Kühlers besitzt verlängerte Schubkanten, damit die Siebstäbe der Klassiereinrichtung 24 ganz oder teilweise überstrichen werden. Dadurch wird auch dann, wenn große Ansatzstücke in den Bereich der Klassiereinrichtung 24 gelangen, immer mindestens der durch die letzte bewegliche Plattenreihe überstrichene Bereich während des Rückhubes freigehalten. Dieser Bereich ist so groß dimensioniert, daß die Gutmenge der unteren Schicht 10 hindurchgeht.The last movable plate row 2a of the cooler has extended push edges so that the sieve bars of the Classifying device 24 completely or partially covered will. This will work even when using large attachments always get into the area of the classification device 24 at least the one through the last movable row of plates Keep the swept area clear during the return stroke. This area is so large that the quantity of material from the lower layer 10 passes through.

Die Siebstäbe der Klassiereinrichtung 24 verhindern, daß große Gutstücke in den Fertiggutschacht 15 gelangen. Auf diese Weise wird eine Verstopfung zwischen dem unteren Ende des Fertiggutschachtes 15 und dem die Staufläche 20 bildenden Tisch vermieden.The screening rods of the classification device 24 prevent that large pieces of good get into the finished goods chute 15. This way, constipation between the lower end of the finished goods chute 15 and the Storage surface 20 forming table avoided.

Das als Balken ausgebildete Austragsorgan 22 wird mechanisch oder hydraulisch angetrieben. Es ist zweckmäßig durch Gußelemente gegen Verschleiß geschützt. The discharge member 22 designed as a bar becomes mechanical or hydraulically driven. It is convenient protected against wear by cast elements.

Die beiden Teilströme des Fertiggutes 21, die durch das Austragsorgan 22 von der Staufläche 20 abgefördert werden, können entweder - wie in Fig.1 angedeutet - zu einer gemeinsamen Förderlinie 27 zusammengefaßt oder gesondert weitertransportiert werden.The two partial flows of the finished product 21, which by the Discharge member 22 are conveyed away from the storage surface 20, can either - as indicated in Fig.1 - to a common conveyor line 27 summarized or separately to be transported further.

Fig.5 zeigt in einer Variante ein zweckmäßiges Ausführungsbeispiel der dem Brecher 16 nachgeschalteten Einrichtungen zum Austrag des Umlaufgutes (d.h. des Gutes der oberen Schicht 11).5 shows a practical embodiment in a variant of the devices downstream of the crusher 16 for the discharge of the goods in circulation (i.e. the goods the upper layer 11).

Dem Brecher 16 ist ein Siebrost 30 nachgeschaltet, dessen Durchlaßöffnungen derart bemessen sind, daß durch den Brecher zerkleinertes Kühlgut den Siebrost passiert, größere Fremdkörper (beispielsweise gebrochene Ringe des Brechers 16) dagegen zurückgehalten werden.The crusher 16 is followed by a sieve grate 30, the Passage openings are dimensioned such that chopped goods are passed through the sieve grate, larger foreign objects (e.g. broken ones Rings of the crusher 16) are held back.

An den Siebrost 30 schließt sich eine Schurre 31 an, die einen das Umlaufgut (Förderlinie 19 gemäß Fig.1) einer Transporteinrichtung zuführenden Hauptauslaß 32 sowie zwei Bypassauslässe 33, 34 aufweist. Durch die beiden letztgenannten Bypassauslässe 33, 34 kann wahlweise Kühlgut der oberen Schicht 11 als Fertiggut abgezogen werden. Es gelangt dann entsprechend der Förderlinie 28 (gemäß Fig.1) in die Förderlinie 27 des Fertiggutes.A chute 31 connects to the sieve grate 30, the one is the material in circulation (conveyor line 19 according to FIG. 1) a main outlet 32 feeding a transport device and two bypass outlets 33, 34. Through the the latter two bypass outlets 33, 34 can be selected Cooled goods of the upper layer 11 are removed as finished goods will. It then arrives according to the conveyor line 28 (according to Fig.1) in the conveyor line 27 of the finished goods.

Die drei Auslässe 32, 33 und 34 sind durch Schieber 35 bis 37 wahlweise freigeb- oder verschließbar.The three outlets 32, 33 and 34 are through slide 35 up to 37 can be released or locked.

Die Bypassauslässe 33, 34 sind zugleich Notwege bei Ausfall einer Transporteinrichtung für das Umlaufgut.The bypass outlets 33, 34 are also emergency routes Failure of a transport device for the circulating goods.

Im Normalbetrieb sind die Bypassauslässe 33, 34 grundsätzlich geschlossen.In normal operation, the bypass outlets 33, 34 are basic closed.

Werden die Schieber 36, 37 geöffnet und der Schieber 35 geschlossen, so läßt sich der Kühler gewünschtenfalls auch einschichtig betreiben. Das Gut böscht sich in diesem Falle in der Schurre 31 so an, wie durch den Gutkegel 38 angedeutet.The slides 36, 37 are opened and the slider 35 closed, the cooler can, if desired also operate in one shift. The property is erased into this case in the chute 31 as by the Good cone 38 indicated.

Claims (11)

  1. Double layer cooler with a grate surface, comprising
    a) means (12, 14) provided at the start of the cooler to deliver a lower layer (10) of material which has already been precooled onto the grate surface and to feed an upper layer (11) of hot material onto the lower layer of material for cooling,
    b) a separating arrangement (18, 17) at the end of the cooler for separating the two layers (10, 11) of material for cooling,
    c) at the end of the cooler for drawing off the lower layer of material for cooling a finished material extraction arrangement (15, 20, 22), a crusher (16) and a transport arrangement (19) for returning the material of the upper layer to the start of the cooler are provided for drawing off the upper layer (11) of material for cooling, and at the start of the cooler this returned precooled material can be fed as lower layer (10) to the grate plate,
    characterised in that
    d) a resting material zone (18) which is formed on a flat inclined chute-like guide surface (chute 17) is arranged before the crusher (16) and is provided at the end of the cooler as a separating arrangement for separating the upper and lower layers (10, 11) of material for cooling.
  2. Cooler as claimed in Claim 1, characterised in that the thickness of the upper and lower layer (10, 11) is variable by adjustment of the vertical position of the separating arrangement (18).
  3. Cooler as claimed in Claims 1 and 2, characterised in that the vertical position of the resting material zone (18) forming the separating arrangement is adjustable by alteration of the inclination of the guide surface (17).
  4. Cooler as claimed in Claim 1, characterised in that - viewed in the direction of movement of the recirculated material - after the crusher (16) a bar screen (30) is provided, of which the openings are of such dimensions that the material for cooling crushed by the crusher (16) passes through the bar screen but larger foreign bodies are held back.
  5. Cooler as claimed in Claim 1, characterised in that connected to the bar screen (30) is a chute (31) which apart from a main outlet (32) delivering the recirculated material to the transport arrangement has at least one bypass outlet (33, 34) which can be opened as required for removal of cooled material from the upper layer (11) as required as finished material.
  6. Cooler as claimed in Claim 1, characterised in that at the end of the cooler for drawing off the material of the lower layer (10) a finished material shaft (15) is provided, the lower end of which opens at a distance above a baffle surface (20) along which a discharge device (22) is movable.
  7. Cooler as claimed in Claim 6, characterised in that the finished material shaft (15) extends over the entire width of the cooler and the cross-section of the finished material shaft (15) widens downwards.
  8. Cooler as claimed in Claim 6, characterised in that the baffle surface (20) is formed by a horizontally disposed table, the dimensions whereof and the distance whereof from the lower end of the finished material shaft (15) being chosen so that the bulk material cone (21a) of the material coming out of the finished material shaft (15) opens on the surface of the table inside the rims of the table.
  9. Cooler as claimed in Claim 6, characterised in that the stroke speed and the stroke length of the discharge device (22) constructed as a beam are adjustable.
  10. Cooler as claimed in Claim 6, characterised in that the inlet opening of the finished material shaft (15) is covered by a classifier (24) constructed as a screen or grate.
  11. Cooler as claimed in Claim 10, constructed as a reciprocating grate cooler which is preferably provided with grate plates and/or rows of grate plates which can be aerated individually, wherein successive rows of plates are disposed so that they are alternately stationary and movable, characterised in that the last row of plates in the direction of conveying is constructed so as to be movable and is disposed so that it at least partially sweeps over the region of the classifier (24).
EP95105650A 1994-06-06 1995-04-13 Cooler adapted for two layers of charge Expired - Lifetime EP0686821B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4419729A DE4419729A1 (en) 1994-06-06 1994-06-06 Two-layer cooler
DE4419729 1994-06-06

Publications (2)

Publication Number Publication Date
EP0686821A1 EP0686821A1 (en) 1995-12-13
EP0686821B1 true EP0686821B1 (en) 1998-09-16

Family

ID=6519902

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Application Number Title Priority Date Filing Date
EP95105650A Expired - Lifetime EP0686821B1 (en) 1994-06-06 1995-04-13 Cooler adapted for two layers of charge

Country Status (12)

Country Link
US (1) US5715687A (en)
EP (1) EP0686821B1 (en)
JP (1) JPH07332825A (en)
KR (1) KR960001692A (en)
AT (1) ATE171264T1 (en)
BR (1) BR9502635A (en)
DE (2) DE4419729A1 (en)
DK (1) DK0686821T3 (en)
ES (1) ES2120654T3 (en)
TR (1) TR28614A (en)
TW (1) TW330982B (en)
ZA (1) ZA953373B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10113516A1 (en) * 2001-03-20 2002-09-26 Bmh Claudius Peters Gmbh Cooling a pourable material, eg cement clinker, on an advancing grid, comprises passing a gas stream through the grid and the material
DE102018215348A1 (en) * 2018-09-10 2020-03-12 Thyssenkrupp Ag Cooler for cooling clinker and method for operating a cooler for cooling clinker
CN112444132B (en) * 2019-08-27 2022-08-30 湖北宜飞复合新材料有限公司 Can improve production efficiency's comb formula cooler hood unloader

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE553427A (en) *
DE1097346B (en) * 1956-02-10 1961-01-12 Smidth & Co As F L Method and device for cooling lumpy or grainy material coming from an oven, e.g. Cement clinker
DE1303526B (en) * 1964-09-03 1972-01-13 Polysius Ag
DE2064032A1 (en) * 1970-12-28 1972-07-06 Peters Ag Claudius Two step cement clinker cooler - with double walled second stage oscillating channel conveyor cooler
US3831291A (en) * 1972-08-16 1974-08-27 Fuller Co Method and apparatus for treatment of particulate material
DE3616630A1 (en) * 1986-05-16 1987-11-19 Krupp Polysius Ag COOLING DEVICE

Also Published As

Publication number Publication date
TR28614A (en) 1996-11-14
EP0686821A1 (en) 1995-12-13
DE59503580D1 (en) 1998-10-22
BR9502635A (en) 1996-01-09
DE4419729A1 (en) 1995-12-07
US5715687A (en) 1998-02-10
KR960001692A (en) 1996-01-25
JPH07332825A (en) 1995-12-22
ZA953373B (en) 1996-01-11
ES2120654T3 (en) 1998-11-01
DK0686821T3 (en) 1999-06-14
ATE171264T1 (en) 1998-10-15
TW330982B (en) 1998-05-01

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