EP0686821A1 - Cooler adapted for two layers of charge - Google Patents

Cooler adapted for two layers of charge Download PDF

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Publication number
EP0686821A1
EP0686821A1 EP95105650A EP95105650A EP0686821A1 EP 0686821 A1 EP0686821 A1 EP 0686821A1 EP 95105650 A EP95105650 A EP 95105650A EP 95105650 A EP95105650 A EP 95105650A EP 0686821 A1 EP0686821 A1 EP 0686821A1
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EP
European Patent Office
Prior art keywords
cooler
chute
goods
cooler according
grate
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.)
Granted
Application number
EP95105650A
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German (de)
French (fr)
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EP0686821B1 (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 in which an upper layer of hot refrigerated goods is placed on a lower layer of pre-cooled refrigerated goods at the start of the cooler and the two layers are separated from one another by a separating device at the end of the cooler, the goods from the lower layer being removed as finished goods and the goods the crusher first passes through a crusher before it is returned to the start of the cooler by a transport device as circulating material and is given there as the lower layer.
  • a two-layer cooler of the type mentioned above is known for example from DE-C-1 097 346.
  • a blade-like mechanical cutting edge is arranged at the cooler end.
  • the invention is therefore based on the object of designing a two-layer cooler of the type mentioned at the outset in such a way that the freedom from maintenance and the reliability of the system are substantially improved in the region of the separating device.
  • This object is achieved in that the crusher is preceded by a guide surface which is inclined so flat that a resting material zone forms on it, which forms the separating device for separating the upper and lower material layers.
  • the separating device is not formed by a separate mechanical element, but rather by a resting zone of the refrigerated goods, the wear which is inevitable in the area of the separating device only has an effect between good particles moving relative to one another.
  • wear on a mechanical cutting edge such abrasion is in no way disturbing, since the fine material particles that are created in this way are removed with the finished product and the stationary material zone is automatically regenerated from the newly supplied material flow.
  • the two-layer cooler shown in FIG. 1 in a schematic overall view is designed as a sliding grate cooler, successive rows of plates 1, 2 being alternately arranged in a stationary and movable manner.
  • the rows of plates of the cooler are combined into several groups 3, 4, 5, which are supplied with cooling air separately via fans 6 and 7 or 8, 9.
  • a lower layer 10 of pre-cooled goods to be cooled is placed on the grate surface of the cooler.
  • An upper layer 11 of hot refrigerated goods is applied to this lower layer 10.
  • the pre-cooled goods to be cooled in the lower layer 10 are fed via a shaft 12 which is separated from a shaft 14 by a bunker wall 13, through which the hot goods to be cooled - for example coming from a rotary kiln - are fed onto the lower layer 10 of the two-layer cooler.
  • a finished goods chute 15 is provided at the end of the cooler for removing the goods from the lower layer 10, the details of which are explained in more detail with reference to FIGS.
  • a crusher 16 At the end of the cooler there is also a crusher 16, upstream of which a chute 17 which feeds the material from the upper layer 11 to the crusher 16.
  • This chute 17 is inclined so flat that a stationary goods zone 18 is formed on it. It provides a separation device which separates the layers 10 and 11 from one another at the end of the cooler by holding back the material from the lower layer 10 and guiding it into the finished goods shaft 15, while the material from the upper layer 11 can slide over the stationary material zone 18 so that it leads to the crusher 16 reached.
  • Coarse parts of the material of the upper layer 11 are crushed by the crusher 16. After passing through the crusher 16, the material from the upper layer 11 comes back as circulating material to the start of the cooler (conveyor line 19) and is applied there as the lower layer 10 to the grate surface of the cooler.
  • the lower end of the finished goods chute 15 opens out at a distance above a storage surface 20 which is formed by a horizontally arranged table. Its dimensions and its distance from the lower end of the finished goods chute 15 are selected such that the bulk material cone 21a of the finished goods 21 emerging from the finished goods chute 15 opens onto the surface of the table forming the storage surface 20 within the table edges.
  • a discharge member 22 can be moved back and forth along the storage surface 20 in the direction of the double arrow 23.
  • the stroke speed and the stroke length of this discharge member 22, which is designed as a bar, are variable.
  • the inlet opening of the finished goods chute 15 at the upper end of the chute is covered by a classifying device 24 designed as a sieve or grate.
  • the finished goods chute 15 extends across the entire width of the cooler (see FIG. 3). Its cross section widens towards the bottom (see Fig. 2).
  • the grate plates of the movable plate rows 2 are carried by an oscillating frame 25 which can be moved back and forth in the direction of the double arrow 26, while the plates of the plate rows 1 are firmly arranged.
  • the last movable plate row 2a in the conveying direction is arranged so that it at least partially covers the area of the classifying device 24.
  • the movable plate rows 2 can be connected in sections to a channel which moves with the oscillating frame 25 and is supplied with air via a sliding seal.
  • the finished product 21 discharged from the discharge member 22 to both sides over the front and rear edge of the storage surface 20 is transported further via a device (conveyor line 27) not shown. If desired, a part of the material of the upper layer 11 can be mixed into the finished product after passing through the crusher 16 (conveyor line 28).
  • Rusting material that falls between the grate plates of the fixed and movable rows of plates 1, 2 is fed via a transport device 29 either to the conveying line 27 of the finished goods or to the conveying line 19 of the circulating goods.
  • the lower layer 10 of pre-cooled items to be cooled protects the grate surface of the cooler from excessive thermal stress and from excessive wear from the hot items to be cooled, which forms the upper layer 11.
  • the two layers are separated from one another by the separating device formed by the stationary goods zone 18.
  • the thickness of the upper and lower layers can be changed by adjusting the height of the separating device.
  • the height of the stationary goods zone 18 (and thus the thickness of the lower layer 10) can be increased by reducing the inclination of the chute 17 (and vice versa).
  • the relative layer thickness can also be influenced, for example, by raising or lowering the chute 17 (with the chute inclination remaining the same).
  • the classifying device 24 provided at the upper end of the finished goods chute 15 holds back larger pieces of material that are present in the lower layer 10. These chunks of material are then either subjected to an autogenous comminution in the material of the lower layer above the classifying device 24, or they reach the stationary material zone 18 or the upper layer 11. In the latter case, they pass through the crusher 16 again.
  • the finished goods 21 accumulate on the storage surface 20 because the bulk material cone 21a opens on the surface of the table forming the storage surface 20 within the table edges. Irrespective of the particular grain composition of the finished product 21, which may change during operation, the quantity of good discharged is therefore determined exclusively by the stroke speed and the stroke length of the discharge member 22.
  • the last movable row of plates 2a of the cooler has extended push edges so that the sieve bars of the classifying device 24 are wholly or partially covered.
  • at least the area covered by the last movable row of plates is always kept free during the return stroke, even when large extension pieces reach the area of the classifying device 24.
  • This area is dimensioned so large that the quantity of material from the lower layer 10 passes through.
  • the sieve bars of the classifying device 24 prevent large items of good from getting into the finished goods chute 15. In this way, clogging between the lower end of the finished goods chute 15 and the table forming the storage surface 20 is avoided.
  • the discharge member 22 designed as a bar is driven mechanically or hydraulically. It is expediently protected against wear by cast elements.
  • the two partial flows of the finished goods 21, which are discharged from the storage area 20 by the discharge member 22, can either - as indicated in FIG. 1 - be combined to form a common conveyor line 27 or be transported separately.
  • FIG 5 shows a variant of an expedient embodiment of the devices downstream of the crusher 16 for discharging the circulating material (i.e. the material of the upper layer 11).
  • the crusher 16 is followed by a sieve grate 30, the passage openings of which are dimensioned in such a way that chilled goods crushed by the crusher pass through the sieve grate, larger foreign bodies (for example broken rings of the crusher 16) are retained.
  • a chute 31 adjoins the sieve grate 30 and has a main outlet 32 which feeds the circulating material (conveyor line 19 according to FIG. 1) to a transport device and two bypass outlets 33, 34. Through the two last-mentioned bypass outlets 33, 34, chilled goods of the upper layer 11 can optionally be drawn off as finished goods. It then reaches the conveyor line 27 of the finished product in accordance with the conveyor line 28 (according to FIG. 1).
  • the three outlets 32, 33 and 34 can be optionally released or closed by slides 35 to 37.
  • the bypass outlets 33, 34 are also emergency routes in the event of failure of a transport device for the circulating goods.
  • bypass outlets 33, 34 are basically closed.
  • the cooler can also be operated in one shift if desired. In this case, the goods are blocked in the chute 31 as indicated by the goods cone 38.

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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)
  • Disintegrating Or Milling (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
  • Semiconductor Lasers (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
  • Adjustment And Processing Of Grains (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, bei dem am Kühleranfang eine obere Schicht von heißem Kühlgut auf eine untere Schicht von bereits vorgekühltem Kühlgut aufgegeben und am Kühlerende die beiden Schichten durch eine Trenneinrichtung voneinander getrennt werden, wobei das Gut der unteren Schicht als Fertiggut abgezogen und das Gut der oberen Schicht zunächst einen Brecher passiert, ehe es durch eine Transporteinrichtung als Umlaufgut zum Kühleranfang zurückgeführt und dort als untere Schicht aufgegeben wird.The invention relates to a two-layer cooler in which an upper layer of hot refrigerated goods is placed on a lower layer of pre-cooled refrigerated goods at the start of the cooler and the two layers are separated from one another by a separating device at the end of the cooler, the goods from the lower layer being removed as finished goods and the goods the crusher first passes through a crusher before it is returned to the start of the cooler by a transport device as circulating material and is given there as the lower layer.

Ein Zweischichtkühler der vorstehend genannten Gattung ist beispielsweise durch die DE-C-1 097 346 bekannt. Als Trenneinrichtung zum Trennen der oberen und unteren Schicht ist bei diesem bekannten Kühler am Kühlerende eine schaufelartig ausgebildete mechanische Schneide angeordnet.A two-layer cooler of the type mentioned above is known for example from DE-C-1 097 346. As a separating device for separating the upper and lower layers in this known cooler, a blade-like mechanical cutting edge is arranged at the cooler end.

Der wesentliche Nachteil einer derartigen Ausführung liegt in dem hohen mechanischen und thermischen Verschleiß, dem die in das heiße Gut eintauchende Schneide ausgesetzt ist. Dadurch ergibt sich bei der bekannten Ausführung ein beträchtlicher Wartungsaufwand und eine gleichfalls sehr unerwünschte Störungsanfälligkeit.The main disadvantage of such a design is the high mechanical and thermal wear to which the cutting edge immersed in the hot material is exposed. This results in a considerable amount of maintenance and also a very undesirable susceptibility to failure in the known embodiment.

Der Erfindung liegt daher die Aufgabe zugrunde, einen Zweischichtkühler der eingangs genannten Art so auszubilden, daß im Bereich der Trenneinrichtung die Wartungsfreiheit und Störungssicherheit der Anlage wesentlich verbessert werden.The invention is therefore based on the object of designing a two-layer cooler of the type mentioned at the outset in such a way that the freedom from maintenance and the reliability of the system are substantially improved in the region of the separating device.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß dem Brecher eine Leitfläche vorgeschaltet ist, die so flach geneigt ist, daß sich auf ihr eine ruhende Gutzone ausbildet, die die Trenneinrichtung zur Trennung der oberen und unteren Gutschicht bildet.This object is achieved in that the crusher is preceded by a guide surface which is inclined so flat that a resting material zone forms on it, which forms the separating device for separating the upper and lower material layers.

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 - 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 according to the invention, the separating device is not formed by a separate mechanical element, but rather by a resting zone of the refrigerated goods, the wear which is inevitable in the area of the separating device only has an effect between good particles moving relative to one another. However, in contrast to wear on a mechanical cutting edge, such abrasion is in no way disturbing, since the fine material particles that are created in this way are removed with the finished product and the stationary material zone is automatically regenerated from the newly supplied material flow.

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 two-layer cooler shown in FIG. 1 in a schematic overall view is designed as a sliding grate cooler, successive rows of plates 1, 2 being alternately arranged in a stationary and movable manner.

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 rows of plates of the cooler are combined into several groups 3, 4, 5, which are supplied with cooling air separately via fans 6 and 7 or 8, 9.

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 start of the cooler, a lower layer 10 of pre-cooled goods to be cooled is placed on the grate surface of the cooler. An upper layer 11 of hot refrigerated goods is applied to this lower layer 10. The pre-cooled goods to be cooled in the lower layer 10 are fed via a shaft 12 which is separated from a shaft 14 by a bunker wall 13, through which the hot goods to be cooled - for example coming from a rotary kiln - are fed onto the lower layer 10 of the two-layer cooler.

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.A finished goods chute 15 is provided at the end of the cooler for removing the goods from the lower layer 10, the details of which are explained in more detail with reference to FIGS.

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.At the end of the cooler there is also a crusher 16, upstream of which a chute 17 which feeds the material from the upper layer 11 to the crusher 16. This chute 17 is inclined so flat that a stationary goods zone 18 is formed on it. It provides a separation device which separates the layers 10 and 11 from one another at the end of the cooler by holding back the material from the lower layer 10 and guiding it into the finished goods shaft 15, while the material from the upper layer 11 can slide over the stationary material zone 18 so that it leads to the crusher 16 reached.

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.Coarse parts of the material of the upper layer 11 are crushed by the crusher 16. After passing through the crusher 16, the material from the upper layer 11 comes back as circulating material to the start of the cooler (conveyor line 19) and is applied there as the lower layer 10 to the grate surface of the 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 at a distance above a storage surface 20 which is formed by a horizontally arranged table. Its dimensions and its distance from the lower end of the finished goods chute 15 are selected such that the bulk material cone 21a of the finished goods 21 emerging from the finished goods chute 15 opens onto the surface of the table forming the storage surface 20 within the table edges.

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 can be moved back and forth along the storage surface 20 in the direction of the double arrow 23. The stroke speed and the stroke length of this discharge member 22, which is designed as a bar, are variable.

Die Eintrittsöffnung des Fertiggutschachtes 15 am oberen Schachtende ist durch eine als Sieb oder Rost ausgebildete Klassiereinrichtung 24 abgedeckt.The inlet opening of the finished goods chute 15 at the upper end of the chute is covered by a classifying device 24 designed as a sieve or grate.

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 across 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 can be seen in FIG. 2, the grate plates of the movable plate rows 2 are carried by an oscillating frame 25 which can be moved back and forth in the direction of the double arrow 26, while the plates of the plate rows 1 are firmly arranged.

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 at least partially covers the area of the classifying device 24.

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 plate rows 2 can be connected in sections to a channel which moves with the oscillating frame 25 and is supplied with air via a sliding seal.

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 finished product 21 discharged from the discharge member 22 to both sides over the front and rear edge of the storage surface 20 is transported further via a device (conveyor line 27) not shown. If desired, a part of the material of the upper layer 11 can be mixed into the finished product after passing through the crusher 16 (conveyor 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.Rusting material that falls between the grate plates of the fixed and movable rows of plates 1, 2 is fed via a transport device 29 either to the conveying line 27 of the finished goods or to the conveying line 19 of the circulating goods.

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

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-cooled items to be cooled protects the grate surface of the cooler from excessive thermal stress and from excessive wear from the hot items to be cooled, which forms 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 cooler end, the two layers are separated from one another by the separating device formed by the stationary goods zone 18. The thickness of the upper and lower layers can be changed by adjusting the height of the separating device. For example, the height of the stationary goods zone 18 (and thus the thickness of the lower layer 10) can be increased by reducing the inclination of the chute 17 (and vice versa). Of course, other constructive options for influencing the relative thickness of the upper and lower layers are also possible within the scope of the invention. The relative layer thickness can also be influenced, for example, by raising or lowering the chute 17 (with the chute inclination remaining the same).

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 classifying device 24 provided at the upper end of the finished goods chute 15 holds back larger pieces of material that are present in the lower layer 10. These chunks of material are then either subjected to an autogenous comminution in the material of the lower layer above the classifying device 24, or they reach the stationary material zone 18 or the upper layer 11. In the latter case, they pass through the 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 accumulate on the storage surface 20 because the bulk material cone 21a opens on the surface of the table forming the storage surface 20 within the table edges. Irrespective of the particular grain composition of the finished product 21, which may change during operation, the quantity of good discharged is therefore determined exclusively by the stroke speed and the stroke length of the discharge member 22.

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 explained above using the example of a moving grate cooler. However, it can of course also be used advantageously in other two-layer coolers, in particular in two-layer traveling grate coolers.

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 row of plates 2a of the cooler has extended push edges so that the sieve bars of the classifying device 24 are wholly or partially covered. As a result, at least the area covered by the last movable row of plates is always kept free during the return stroke, even when large extension pieces reach the area of the classifying device 24. This area is dimensioned 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 sieve bars of the classifying device 24 prevent large items of good from getting into the finished goods chute 15. In this way, clogging between the lower end of the finished goods chute 15 and the table forming the storage surface 20 is 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 is driven mechanically or hydraulically. It is expediently 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 goods 21, which are discharged from the storage area 20 by the discharge member 22, can either - as indicated in FIG. 1 - be combined to form a common conveyor line 27 or be transported separately.

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 variant of an expedient embodiment of the devices downstream of the crusher 16 for discharging the circulating material (i.e. the material of 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 of which are dimensioned in such a way that chilled goods crushed by the crusher pass through the sieve grate, larger foreign bodies (for example broken rings of the crusher 16) are retained.

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 adjoins the sieve grate 30 and has a main outlet 32 which feeds the circulating material (conveyor line 19 according to FIG. 1) to a transport device and two bypass outlets 33, 34. Through the two last-mentioned bypass outlets 33, 34, chilled goods of the upper layer 11 can optionally be drawn off as finished goods. It then reaches the conveyor line 27 of the finished product in accordance with the conveyor line 28 (according to FIG. 1).

Die drei Auslässe 32, 33 und 34 sind durch Schieber 35 bis 37 wahlweise freigeb- oder verschließbar.The three outlets 32, 33 and 34 can be optionally released or closed by slides 35 to 37.

Die Bypassauslässe 33, 34 sind zugleich Notwege bei Ausfall einer Transporteinrichtung für das Umlaufgut.The bypass outlets 33, 34 are also emergency routes in the event of 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 basically 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.If the slides 36, 37 are opened and the slider 35 is closed, the cooler can also be operated in one shift if desired. In this case, the goods are blocked in the chute 31 as indicated by the goods cone 38.

Claims (11)

Zweischichtkühler, a) bei dem am Kühleranfang eine obere Schicht (11) von heißem Kühlgut auf eine untere Schicht (10) von bereits vorgekühltem Kühlgut aufgegeben und am Kühlerende die beiden Schichten (10, 11) durch eine Trenneinrichtung voneinander getrennt werden, b) wobei das Gut der unteren Schicht (10) als Fertiggut abgezogen und das Gut der oberen Schicht (11) zunächst einen Brecher (16) passiert, ehe es durch eine Transporteinrichtung als Umlaufgut zum Kühleranfang zurückgeführt und dort als untere Schicht aufgegeben wird, dadurch gekennzeichnet, daß c) dem Brecher (16) eine Leitfläche (Schurre 17) vorgeschaltet ist, die so flach geneigt ist, daß sich auf ihr eine ruhende Gutzone (18) ausbildet, die die Trenneinrichtung zur Trennung der oberen und unteren Gutschicht (10, 11) bildet. Two-layer cooler, a) in which an upper layer (11) of hot refrigerated goods is placed on a lower layer (10) of already precooled refrigerated goods at the start of the cooler and the two layers (10, 11) are separated from one another by a separating device at the end of the cooler, b) the material from the lower layer (10) being drawn off as finished goods and the material from the upper layer (11) first passing through a crusher (16) before it is returned to the start of the cooler by a transport device and circulated there as the lower layer, characterized in that c) the crusher (16) is connected upstream of a guide surface (chute 17) which is inclined so flat that a resting material zone (18) forms on it, which forms the separating device for separating the upper and lower material layers (10, 11) . Kühler nach Anspruch 1, dadurch gekennzeichnet, daß die Stärke der oberen und unteren Schicht (10, 11) durch Einstellung der Höhenlage der Trenneinrichtung (Gutzone 18) veränderlich ist.Cooler according to claim 1, characterized in that the thickness of the upper and lower layers (10, 11) is variable by adjusting the height of the separating device (goods zone 18). Kühler nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß die Höhenlage der die Trenneinrichtung bildenden ruhenden Gutzone (18) durch Veränderung der Neigung der Leitfläche (Schurre 17) einstellbar ist.Cooler according to claims 1 and 2, characterized in that the height of the stationary goods zone (18) forming the separating device is changed the inclination of the guide surface (chute 17) is adjustable. Kühler nach Anspruch 1, dadurch gekennzeichnet, daß - in Bewegungsrichtung des Umlaufgutes betrachtet - nach dem Brecher (16) ein Siebrost (30) vorgesehen ist, dessen Durchlaßöffnungen derart bemessen sind, daß durch den Brecher (16) zerkleinertes Kühlgut den Siebrost passiert, größere Fremdkörper dagegen zurückgehalten werden.Cooler according to claim 1, characterized in that - viewed in the direction of movement of the material to be circulated - a sieve grate (30) is provided after the crusher (16), the passage openings of which are dimensioned in such a way that chilled material crushed by the crusher (16) passes the sieve grate, larger ones Foreign objects, however, are retained. Kühler nach Anspruch 1, dadurch gekennzeichnet, daß sich an den Siebrost (30) eine Schurre (31) anschließt, die außer einem das Umlaufgut der Transporteinrichtung zuführenden Hauptauslaß (32) wenigstens einen wahlweise freigebbaren Bypassauslaß (33, 34) zum wahlweisen Abzug von Kühlgut der oberen Schicht (11) als Fertiggut aufweist.Cooler according to claim 1, characterized in that the chute (30) is followed by a chute (31) which, in addition to a main outlet (32) supplying the circulating material to the transport device, has at least one optionally releasable bypass outlet (33, 34) for the optional removal of refrigerated goods the upper layer (11) as finished goods. Kühler nach Anspruch 1, dadurch gekennzeichnet, daß am Kühlerende zum Abzug des Gutes der unteren Schicht (10) ein Fertiggutschacht (15) vorgesehen ist, dessen unteres Ende mit Abstand über einer Staufläche (20) ausmündet, längs der ein Austragsorgan (22) beweglich ist.A cooler according to claim 1, characterized in that a finished goods chute (15) is provided at the cooler end for removing the material of the lower layer (10), the lower end of which opens out at a distance above a storage surface (20) along which a discharge member (22) can move is. Kühler nach Anspruch 6, dadurch gekennzeichnet, daß sich der Fertiggutschacht (15) über die gesamte Breite des Kühlers erstreckt und sich der Querschnitt des Fertiggutschachtes (15) nach unten zu erweitert.Cooler according to claim 6, characterized in that the finished goods chute (15) extends over the entire width of the cooler and the cross section of the finished goods chute (15) widens downward. Kühler nach Anspruch 6, dadurch gekennzeichnet, daß die Staufläche (20) durch einen horizontal angeordneten Tisch gebildet wird, dessen Abmessungen und dessen Abstand vom unteren Ende des Fertiggutschachtes (15) so gewählt sind, daß der Schüttgutkegel (21a) des aus dem Fertiggutschacht (15) austretenden Gutes auf der Oberfläche des Tisches innerhalb der Tischränder mündet.Cooler according to claim 6, characterized in that the storage surface (20) by a horizontally arranged Table is formed, the dimensions and the distance from the lower end of the finished goods chute (15) are selected so that the bulk material cone (21a) of the goods emerging from the finished goods chute (15) opens onto the surface of the table within the table edges. Kühler nach Anspruch 6, dadurch gekennzeichnet, daß die Hubgeschwindigkeit und die Hublänge des als Balken ausgebildeten Austragsorganes (22) einstellbar sind.Cooler according to claim 6, characterized in that the stroke speed and the stroke length of the discharge member (22) designed as a bar are adjustable. Kühler nach Anspruch 6, dadurch gekennzeichnet, daß die Eintrittsöffnung des Fertiggutschachtes (15) durch eine als Sieb oder Rost ausgebildete Klassiereinrichtung (24) abgedeckt ist.Cooler according to claim 6, characterized in that the inlet opening of the finished product chute (15) is covered by a classifying device (24) designed as a sieve or grate. Kühler nach Anspruch 10, ausgebildet als Schubrostkühler, der vorzugsweise mit einzeln belüftbaren Rostplatten und/oder Rostplattenreihen versehen ist, wobei aufeinanderfolgende Plattenreihen abwechselnd stationär und beweglich angeordnet sind, dadurch gekennzeichnet, daß die in Förderrichtung letzte Plattenreihe beweglich ausgebildet und derart angeordnet ist, daß sie den Bereich der Klassiereinrichtung (24) wenigstens teilweise überstreicht.Cooler according to claim 10, designed as a sliding grate cooler, which is preferably provided with individually ventilated grate plates and / or rows of grate plates, successive rows of plates being arranged alternately in a stationary and movable manner, characterized in that the last row of plates in the conveying direction is designed to be movable and arranged such that it covers the area of the classifying device (24) at least partially.
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
DE4419729 1994-06-06
DE4419729A DE4419729A1 (en) 1994-06-06 1994-06-06 Two-layer cooler

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

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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)

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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

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE553427A (en) *
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

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US5715687A (en) 1998-02-10
DE59503580D1 (en) 1998-10-22
KR960001692A (en) 1996-01-25
DE4419729A1 (en) 1995-12-07
JPH07332825A (en) 1995-12-22
ZA953373B (en) 1996-01-11
EP0686821B1 (en) 1998-09-16
TW330982B (en) 1998-05-01
ES2120654T3 (en) 1998-11-01
BR9502635A (en) 1996-01-09
ATE171264T1 (en) 1998-10-15
TR28614A (en) 1996-11-14
DK0686821T3 (en) 1999-06-14

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