EP0339196A2 - Column dryer with inversed V-shaped deflectors for dripping material - Google Patents

Column dryer with inversed V-shaped deflectors for dripping material Download PDF

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Publication number
EP0339196A2
EP0339196A2 EP89102567A EP89102567A EP0339196A2 EP 0339196 A2 EP0339196 A2 EP 0339196A2 EP 89102567 A EP89102567 A EP 89102567A EP 89102567 A EP89102567 A EP 89102567A EP 0339196 A2 EP0339196 A2 EP 0339196A2
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EP
European Patent Office
Prior art keywords
slot
slide
container
shaft dryer
operating position
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP89102567A
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German (de)
French (fr)
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EP0339196A3 (en
Inventor
Karl Dipl.-Ing. Happle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Happle & Co Maschinenfabrik GmbH
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Happle & Co Maschinenfabrik GmbH
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Publication date
Application filed by Happle & Co Maschinenfabrik GmbH filed Critical Happle & Co Maschinenfabrik GmbH
Publication of EP0339196A2 publication Critical patent/EP0339196A2/en
Publication of EP0339196A3 publication Critical patent/EP0339196A3/en
Withdrawn legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/12—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft
    • F26B17/14—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft the materials moving through a counter-current of gas
    • F26B17/1408—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft the materials moving through a counter-current of gas the gas being supplied and optionally extracted through ducts extending into the moving stack of material
    • F26B17/1416—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft the materials moving through a counter-current of gas the gas being supplied and optionally extracted through ducts extending into the moving stack of material the ducts being half open or perforated and arranged horizontally
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/001—Handling, e.g. loading or unloading arrangements
    • F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods

Definitions

  • the invention relates to a roof shaft dryer according to the preamble of claim 1.
  • roof shaft dryers which have numerous roofs in the interior of a container, below which channels for the supply of drying air and for the removal of drying air are formed.
  • the roofs have the effect that the free-flowing material does not completely fill the interior of the container and that free channels remain under the roofs, through which air can be supplied or removed. Drying air is introduced into some channels and air is extracted from other channels. The air escapes from the supply channels, which are open at the bottom, to close the material to be dried flow through and to be sucked into an adjacent suction channel.
  • the discharge device At the lower end of the roof shaft dryer is the discharge device, from which the dried material trickles out. This discharge device should be designed so that no trickle channels form within the material to be dried.
  • the goods should sink as evenly and slowly as possible in the container.
  • the discharge device provided at the lower end of the container must on the one hand enable uniform trickling without the formation of trickling channels, and on the other hand must also allow the container to be completely emptied so that the next container is not mixed with the new container contents the next time it is filled.
  • Discharge devices for roof shaft dryers are known in which the material trickles into a linearly moving trough. The trough must be tipped for the remaining emptying. It is also known to let the material trickle onto a plate on which a slide is moved back and forth, which loosens any blockages of the material at the funnel exit and ensures a constant discharge of the product. It is also difficult here to completely drain the dryer completely.
  • discharge devices which have slits delimited by plates on the silo bottom, which can be closed by a slide in each case.
  • the slides are set stationary to a certain opening position. Residual quantities of the material remain on the webs separating the slots from one another, so that complete residual emptying is not readily possible here either.
  • the invention has for its object to provide a roof shaft dryer of the type specified in the preamble of claim 1, the discharge device is designed so that a uniform sinking of the goods is ensured and complete residual emptying is possible without complex tilting mechanisms.
  • the discharge device has a simple slide which can be moved between different operating positions in the slot forming the lower end of the outlet funnel, the slide being able to completely close the slot.
  • the movement device moves the slider so that it takes up two different operating positions, the left slot edge being released in one operating position and the right slot edge being released in the other operating position.
  • the fact that the material alternately trickles down at different slit edges prevents the formation of long trickle channels.
  • the slide for the complete release of the slot it is only necessary to push the slide into its end position, any material still present on the slide being stripped off.
  • the slide therefore only needs to be able to carry out linear movements and it is not necessary to tilt the slide to remove residual material.
  • each slot Preferably elastic strippers are attached to the lower end of each slot, which extend to the plate of the slide. This way, on the one hand when the slide is set in the center, the slot is completely closed and, on the other hand, it is ensured that in the case that the slide is pushed completely out of the area of the slot, no granular material remains on the slide.
  • the push bar expediently runs at a vertical distance below the top of the plate.
  • the push bar which is required for moving the slide, has a vertical distance from the slots, so that material trickling down through the slots, which accumulates on the push bar, does not reach the height of the slots and cannot impair the trickling down of other goods .
  • the roof shaft dryer shown has an elongated rectangular container 10, under which the discharge device 11 is arranged.
  • the side walls of the container 10 are flush and tight with the side walls of the discharge device 11.
  • the container 10 is known to contain numerous internals in the form of roofs 12 which extend across the entire width of the container 10.
  • the roofs 12 are below Channels 13 are open and underneath or in the roofs 12, some of these channels being supply air channels for supplying drying air and other channels being suction channels.
  • the free-flowing material 14 trickles down into the container 10, trickling through between two roofs 12 in order to be deflected by an underlying roof 12.
  • the gaps between two of the lower roofs 12 each lead into a funnel 15.
  • the funnels 15 also extend over the entire width of the discharge device 11 and they consist of downwardly converging walls 16 which open into a slot 17, the slot edges of which are 17a and 17b are designated.
  • the slot walls 16 running vertically there are reinforced by angle rails 18 and 19 fastened to the outer sides, in order to prevent the material pushing into the hopper 15 from pushing the slot walls and the hopper walls apart.
  • a stripper 20, which projects freely from the lower end of the funnel wall, is clamped between each angle piece 18, 19 and the associated funnel wall 16.
  • the wipers 20 are made of elastic material, such as rubber, and extend to the plate 21 of the slide 22, which is arranged under the slot 17.
  • Each slider 22 consists of an inverted U-shaped rail, the base of which is formed by the top plate 21, while the legs 22a protrude downward.
  • the push bar 23 is fastened to the lower end regions of the legs 22a.
  • a total of four push bars 23 are present (FIG. 2), two of which are push bars near the longitudinal side walls of the discharge device 11 and two further push bars run in the middle between these side walls.
  • the outer thrust beams 23 are guided on rollers 24, which are mounted on the longitudinal side walls of the discharge device 11. All four push bars 23 are connected to one another by the slides 22 running transversely to this.
  • the push bar 23 are driven by the movement device 25, which in the present case consists of a piston-cylinder unit, the cylinder of which is attached to an end wall of the housing of the discharge device 11 and the piston rod 26 of which is connected to two push bars 23.
  • the movement device 25 displaces the push bars 23 linearly in their longitudinal direction, as a result of which the pushers 22 fastened transversely to the push bars 23 are displaced transversely to the slots 17.
  • the slide 22 is shown in the middle position, in which its plate 22 completely closes the slot 17.
  • the slide 22 can be moved transversely to the slot 17 so that they assume a first operating position B11, in which a narrow area of the right edge of the slot is released, so that the free-flowing material can sink through this area.
  • Position B11 is intended for fine-grained goods.
  • the slide 22 is set to the position B12 in the first operating position, in which the gap on the right-hand slot edge 17a is correspondingly larger.
  • the positions B11 and B12 can be set on the movement device 25, for example by means of corresponding valves which are controlled by the piston rod 26.
  • the second operating position B21 for fine grain and the second operating position B22 for coarse grain are also shown in FIG. 3.
  • a corresponding gap on the left slot edge 17b is released.
  • the movement device 25 is controlled in such a way that either only the operating positions B11 and B21 for fine grain or only the operating positions B12 and B22 for coarse grain are set.
  • the change between the left and right operating positions takes place approximately two to three times per minute. In this way, the right slot edge 17a and the left slot edge 17b are released alternately.
  • the push bars are moved in the longitudinal direction so far that the slides 22 leave the slot 17 and release this slot completely, which is indicated by the position B3 in FIG. 3.
  • the wipers 20 prevent material from leaving the slot 17 together with the slide 22. Rather, the material is advanced to the end of the plate 21 and then falls in the area of the slot over the edge of the plate 21.
  • a major advantage of the invention is that the slide 22 between all operating positions and even when they are in the open position B3 are only moved linearly in a horizontal plane. This simplifies the movement device and, in particular, no folding mechanisms are required for the residual emptying.
  • the roof shaft dryer according to the invention is particularly suitable for drying grain, but it is also suitable for drying other free-flowing goods.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

The discharge device of a column dryer has numerous funnels (15), under which sliders (22) are arranged. Each slider (22) is displaceable between a first operating position (B11), in which one slot edge (17a) of the funnel is opened, and a second operating position (B21), in which the other slot edge (17b) is opened, the operating positions changing periodically. For residual emptying, the slider (22) can be moved into a position (B3) outside the slot (17). <IMAGE>

Description

Die Erfindung betrifft einen Dächerschachttrockner nach dem Oberbegriff des Anspruchs 1.The invention relates to a roof shaft dryer according to the preamble of claim 1.

Zur Trocknung von körnigem Gut wie Getreide, Kork und ähnlichem, werden Dächerschachttrockner benutzt, die im Inneren eines Behälters zahlreiche Dächer aufweisen, unter denen Kanäle für die Zufuhr von Trocknungsluft und für die Abfuhr von Trocknungsluft gebildet sind. Die Dächer bewirken, daß das rieselfähige Gut das Be­hälterinnere nicht vollständig ausfüllt und daß unter den Dächern freie Kanäle verbleiben, durch die Luft zugeführt oder abgeführt werden kann. In einige Kanäle wird Trocknungsluft eingeführt und aus anderen Kanälen wird Luft abgesaugt. Aus den unten offenen Zufuhr­kanälen entweicht die Luft, um das zu trocknende Gut zu durchströmen und in einen benachbarten Absaugkanal hinein abgesaugt zu werden. Am unteren Ende des Dächer­schachttrockners befindet sich die Austragvorrichtung, aus der das getrocknete Gut herausrieselt. Diese Aus­tragvorrichtung sollte so ausgebildet sein, daß sich innerhalb des zu trocknenden Guts keine Rieselkanäle ausbilden. Vielmehr sollte das Gut möglichst gleich­mäßig und langsam in dem Behälter absinken. Bei einem Dächerschachttrockner muß die am unteren Ende des Be­hälters vorgesehene Austragvorrichtung einerseits ein gleichmäßiges Rieseln ohne die Bildung von Riesel­kanälen ermöglichen, andererseits aber auch eine voll­ständige Restentleerung des Behälters gestatten, damit bei der nächsten Behälterfüllung keine Vermischung des Restgutes mit dem neuen Behälterinhalt erfolgt. Bekannt sind Austragvorrichtungen für Dächerschachttrockner, bei denen das Gut in eine linear bewegte Mulde rieselt. Für die Restentleerung muß die Mulde gekippt werden. Ferner ist es bekannt, das Gut auf eine Platte rieseln zu lassen, auf der ein Schieber hin- und herbewegt wird, welcher eventuelle Blockierungen des Gutes am Trichterausgang lockert und einen ständigen Gutaustrag sicherstellt. Schwierig ist auch hier eine vollständige Restentleerung des Trockners.To dry granular material such as grain, cork and the like, roof shaft dryers are used which have numerous roofs in the interior of a container, below which channels for the supply of drying air and for the removal of drying air are formed. The roofs have the effect that the free-flowing material does not completely fill the interior of the container and that free channels remain under the roofs, through which air can be supplied or removed. Drying air is introduced into some channels and air is extracted from other channels. The air escapes from the supply channels, which are open at the bottom, to close the material to be dried flow through and to be sucked into an adjacent suction channel. At the lower end of the roof shaft dryer is the discharge device, from which the dried material trickles out. This discharge device should be designed so that no trickle channels form within the material to be dried. Rather, the goods should sink as evenly and slowly as possible in the container. In the case of a roof shaft dryer, the discharge device provided at the lower end of the container must on the one hand enable uniform trickling without the formation of trickling channels, and on the other hand must also allow the container to be completely emptied so that the next container is not mixed with the new container contents the next time it is filled. Discharge devices for roof shaft dryers are known in which the material trickles into a linearly moving trough. The trough must be tipped for the remaining emptying. It is also known to let the material trickle onto a plate on which a slide is moved back and forth, which loosens any blockages of the material at the funnel exit and ensures a constant discharge of the product. It is also difficult here to completely drain the dryer completely.

Bei Silos sind Austragvorrichtungen bekannt, die am Siloboden von Platten begrenzte Schlitze aufweisen, welche durch jeweils einen Schieber verschließbar sind. Die Schieber werden hierbei stationär auf eine be­stimmte Öffnungsstellung eingestellt. Auf den die Schlitze voneinander trennenden Stegen bleiben Rest­mengen des Gutes liegen, so daß auch hier eine voll­ständige Restentleerung nicht ohne weiteres möglich ist.In the case of silos, discharge devices are known which have slits delimited by plates on the silo bottom, which can be closed by a slide in each case. The slides are set stationary to a certain opening position. Residual quantities of the material remain on the webs separating the slots from one another, so that complete residual emptying is not readily possible here either.

Der Erfindung liegt die Aufgabe zugrunde, einen Dächer­schachttrockner der im Oberbegriff des Anspruchs 1 an­gegebenen Art zu schaffen, dessen Austragvorrichtung so ausgebildet ist, daß ein gleichmäßiges Absinken des Gutes gewährleistet und eine vollständige Rest­entleerung ohne aufwendige Kippmechanismen möglich ist.The invention has for its object to provide a roof shaft dryer of the type specified in the preamble of claim 1, the discharge device is designed so that a uniform sinking of the goods is ensured and complete residual emptying is possible without complex tilting mechanisms.

Die Lösung dieser Aufgabe erfolgt erfindungsgemäß mit den im kennzeichnenden Teil des Anspruchs 1 angegebenen Merkmalen.This object is achieved according to the invention with the features specified in the characterizing part of claim 1.

Bei dem erfindungsgemäßen Dächerschachttrockner weist die Austragvorrichtung einen einfachen Schieber auf, der in dem das untere Ende des Auslauftrichters bildenden Schlitz zwischen unterschiedlichen Betriebs­stellungen bewegt werden kann, wobei der Schieber den Schlitz vollständig abschließen kann. Von der Bewegungs­vorrichtung wird der Schieber so bewegt, daß er ab­wechselnd zwei unterschiedliche Betriebsstellungen ein­nimmt, wobei in der einen Betriebsstellung der linke Schlitzrand und in der anderen Betriebsstellung der rechte Schlitzrand freigegeben wird. Dadurch, daß das Gut abwechselnd an unterschiedlichen Schlitzrändern herabrieselt, wird das Entstehen langer Rieselkanäle vermieden. Andererseits ist es für die völlige Freigabe des Schlitzes lediglich erforderlich, den Schieber in seine Endstellung zu schieben, wobei eventuell auf dem Schieber noch vorhandenes Gut abgestreift wird. Der Schieber braucht also lediglich Linearbewegungen aus­führen zu können und es ist nicht erforderlich den Schieber zum Beseitigen von restlichem Gut zu kippen.In the roof shaft dryer according to the invention, the discharge device has a simple slide which can be moved between different operating positions in the slot forming the lower end of the outlet funnel, the slide being able to completely close the slot. The movement device moves the slider so that it takes up two different operating positions, the left slot edge being released in one operating position and the right slot edge being released in the other operating position. The fact that the material alternately trickles down at different slit edges prevents the formation of long trickle channels. On the other hand, for the complete release of the slot it is only necessary to push the slide into its end position, any material still present on the slide being stripped off. The slide therefore only needs to be able to carry out linear movements and it is not necessary to tilt the slide to remove residual material.

Vorzugsweise sind am unteren Ende jedes Schlitzes elastische Abstreifer befestigt, die bis auf die Platte des Schiebers reichen. Auf diese Weise wird einerseits bei mittig eingestelltem Schieber ein vollständiger Verschluß des Schlitzes erreicht und andererseits wird sichergestellt, daß in dem Fall, daß der Schieber voll­ständig aus dem Bereich des Schlitzes herausgeschoben ist, kein körniges Gut auf dem Schieber zurückbleibt.Preferably elastic strippers are attached to the lower end of each slot, which extend to the plate of the slide. This way, on the one hand when the slide is set in the center, the slot is completely closed and, on the other hand, it is ensured that in the case that the slide is pushed completely out of the area of the slot, no granular material remains on the slide.

Zweckmäßigerweise verläuft der Schubbalken in vertikalem Abstand unterhalb der Plattenoberseite. Hier­bei hat der Schubbalken, der zum Bewegen der Schieber erforderlich ist, einen vertikalen Abstand von den Schlitzen, so daß durch die Schlitze herabrieselndes Gut, das sich auf den Schubbalken ansammelt, nicht bis zur Höhe der Schlitze reichen und das Herabrieseln weiteren Gutes nicht beeinträchtigen kann.The push bar expediently runs at a vertical distance below the top of the plate. Here, the push bar, which is required for moving the slide, has a vertical distance from the slots, so that material trickling down through the slots, which accumulates on the push bar, does not reach the height of the slots and cannot impair the trickling down of other goods .

Im folgenden wird unter Bezugnahme auf die Zeichnungen ein Ausführungsbeispiel der Erfindung näher erläutert.In the following an embodiment of the invention will be explained with reference to the drawings.

Es zeigen:

  • Fig. 1 eine schematische Darstellung des inneren Auf­baus des Dächerschachttrockners und
  • Fig. 2 eine Draufsicht auf die Austragvorrichtung aus Richtung der Pfeile II-II von Fig. 1.
Show it:
  • Fig. 1 is a schematic representation of the internal structure of the roof shaft dryer and
  • FIG. 2 is a top view of the discharge device from the direction of arrows II-II of FIG. 1.

Der dargestellte Dächerschachttrockner weist einen lang­gestreckten rechteckigen Behälter 10 auf, unter dem die Austragvorrichtung 11 angeordnet ist. Die Seitenwände des Behälters 10 schließen bündig und dicht mit den Seitenwänden der Austragvorrichtung 11 ab. Der Behälter 10 enthält bekannterweise zahlreiche Einbauten in Form von Dächern 12, die sich quer über die gesamte Breite des Behälters 10 erstrecken. Die Dächer 12 sind unten offen und unter bzw. in den Dächern 12 sind Kanäle 13 gebildet, wobei einige dieser Kanäle Zuluftkanäle zum Zuführen von Trocknungsluft und andere Kanäle Absaug­kanäle sind. Das rieselfähige Gut 14 rieselt in den Behälter 10 herab, wobei es zwischen zwei Dächern 12 hindurchrieselt, um von einem darunterliegenden Dach 12 umgelenkt zu werden. Die Spalte zwischen zwei der unteren Dächer 12 führen jeweils in einen Trichter 15. Die Trichter 15 erstrecken sich ebenfalls über die ge­samte Breite der Austragvorrichtung 11 und sie bestehen aus nach unten konvergierenden Wänden 16, die in einen Schlitz 17 münden, dessen Schlitzränder mit 17a und 17b bezeichnet sind. Im Bereich des Schlitzes 17 sind die dort vertikal verlaufenden Schlitzwände 16 durch an den Außenseiten befestigte Winkelschienen 18 bzw. 19 ver­stärkt, um zu verhindern, daß das in den Trichter 15 hineindrückende Gut die Schlitzwände und die Trichter­wände auseinanderdrückt. Zwischen jedem Winkelstück 18,19 und der zugehörigen Trichterwand 16 ist ein Ab­streifer 20 eingespannt, der vom unteren Ende der Trichterwand frei absteht. Die Abstreifer 20 bestehen aus elastischem Material, z.B. Gummi, und reichen bis auf die Platte 21 des Schiebers 22, der unter dem Schlitz 17 angeordnet ist.The roof shaft dryer shown has an elongated rectangular container 10, under which the discharge device 11 is arranged. The side walls of the container 10 are flush and tight with the side walls of the discharge device 11. The container 10 is known to contain numerous internals in the form of roofs 12 which extend across the entire width of the container 10. The roofs 12 are below Channels 13 are open and underneath or in the roofs 12, some of these channels being supply air channels for supplying drying air and other channels being suction channels. The free-flowing material 14 trickles down into the container 10, trickling through between two roofs 12 in order to be deflected by an underlying roof 12. The gaps between two of the lower roofs 12 each lead into a funnel 15. The funnels 15 also extend over the entire width of the discharge device 11 and they consist of downwardly converging walls 16 which open into a slot 17, the slot edges of which are 17a and 17b are designated. In the area of the slot 17, the slot walls 16 running vertically there are reinforced by angle rails 18 and 19 fastened to the outer sides, in order to prevent the material pushing into the hopper 15 from pushing the slot walls and the hopper walls apart. A stripper 20, which projects freely from the lower end of the funnel wall, is clamped between each angle piece 18, 19 and the associated funnel wall 16. The wipers 20 are made of elastic material, such as rubber, and extend to the plate 21 of the slide 22, which is arranged under the slot 17.

Jeder Schieber 22 besteht aus einer Schiene in der Form eines umgekehrten U, wobei die Basis von der oberen Platte 21 gebildet wird, während die Schenkel 22a nach unten ragen. An den unteren Endbereichen der Schenkel 22a ist der Schubbalken 23 befestigt. Bei dem vor­liegenden Ausführungsbeispiel sind insgesamt vier Schubbalken 23 vorhanden (Fig. 2), von denen zwei Schubbalken in der Nähe der längslaufenden Seitenwände der Austragvorrichtung 11 und zwei weitere Schubbalken im Mittelbereich zwischen diesen Seitenwänden ver­laufen. Die äußeren Schubbalken 23 sind auf Rollen 24, die an den längslaufenden Seitenwänden der Austrag­vorrichtung 11 gelagert sind, geführt. Alle vier Schub­balken 23 sind durch die hierzu querverlaufenden Schieber 22 untereinander verbunden.Each slider 22 consists of an inverted U-shaped rail, the base of which is formed by the top plate 21, while the legs 22a protrude downward. The push bar 23 is fastened to the lower end regions of the legs 22a. In the present exemplary embodiment, a total of four push bars 23 are present (FIG. 2), two of which are push bars near the longitudinal side walls of the discharge device 11 and two further push bars run in the middle between these side walls. The outer thrust beams 23 are guided on rollers 24, which are mounted on the longitudinal side walls of the discharge device 11. All four push bars 23 are connected to one another by the slides 22 running transversely to this.

Die Schubbalken 23 werden von der Bewegungsvorrichtung 25 angetrieben, die im vorliegenden Fall aus einer Kolben-Zylinder-Einheit besteht, deren Zylinder an einer Stirnwand des Gehäuses der Austragvorrichtung 11 angebracht ist und deren Kolbenstange 26 mit zwei Schubbalken 23 verbunden ist. Die Bewegungsvorrichtung 25 verschiebt die Schubbalken 23 in deren Längsrichtung linear, wodurch die quer an den Schubbalken 23 be­festigten Schieber 22 quer zu den Schlitzen 17 ver­schoben werden.The push bar 23 are driven by the movement device 25, which in the present case consists of a piston-cylinder unit, the cylinder of which is attached to an end wall of the housing of the discharge device 11 and the piston rod 26 of which is connected to two push bars 23. The movement device 25 displaces the push bars 23 linearly in their longitudinal direction, as a result of which the pushers 22 fastened transversely to the push bars 23 are displaced transversely to the slots 17.

In Fig. 3 ist der Schieber 22 in der Mittelstellung dargestellt, in der seine Platte 22 den Schlitz 17 vollständig verschließt. Unter entsprechender Steuerung der Bewegungsvorrichtung 25 können die Schieber 22 quer zum Schlitz 17 so verschoben werden, daß sie eine erste Betriebsstellung B11 einnehmen, in der ein schmaler Bereich des rechten Schlitzrandes freigegeben wird, so daß durch diesen Bereich das rieselfähige Gut herab­sinken kann. Die Stellung B11 ist für feinkörnige Güter bestimmt. Für gröberes Korn wird de Schieber 22 in der ersten Betriebsstellung auf die Stellung B12 ein­gestellt, in der der Spalt am rechten Schlitzrand 17a entsprechend größer ist. Die Stellungen B11 und B12 sind an der Bewegungsvorrichtung 25 einstellbar, z.B. durch entsprechende Ventile, die von der Kolbenstange 26 gesteuert sind.In Fig. 3, the slide 22 is shown in the middle position, in which its plate 22 completely closes the slot 17. With appropriate control of the movement device 25, the slide 22 can be moved transversely to the slot 17 so that they assume a first operating position B11, in which a narrow area of the right edge of the slot is released, so that the free-flowing material can sink through this area. Position B11 is intended for fine-grained goods. For coarser grain, the slide 22 is set to the position B12 in the first operating position, in which the gap on the right-hand slot edge 17a is correspondingly larger. The positions B11 and B12 can be set on the movement device 25, for example by means of corresponding valves which are controlled by the piston rod 26.

Die zweite Betriebsstellung B21 für feines Korn und die zweite Betriebsstellung B22 für grobes Korn sind in Fig. 3 ebenfalls dargestellt. In jeder der zweiten Be­triebsstellungen wird ein entsprechender Spalt am linken Schlitzrand 17b freigegeben. Die Steuerung der Bewegungsvorrichtung 25 erfolgt so, daß entweder nur die Betriebsstellungen B11 und B21 für feines Korn oder nur die Betriebsstellungen B12 und B22 für grobes Korn eingestellt werden. Der Wechsel zwischen der linken und der rechten Betriebsstellung erfolgt ca. zwei- bis dreimal pro Minute. Auf diese Weise werden der rechte Schlitzrand 17a und der linke Schlitzrand 17b ab­wechselnd freigegeben.The second operating position B21 for fine grain and the second operating position B22 for coarse grain are also shown in FIG. 3. In each of the second operating positions, a corresponding gap on the left slot edge 17b is released. The movement device 25 is controlled in such a way that either only the operating positions B11 and B21 for fine grain or only the operating positions B12 and B22 for coarse grain are set. The change between the left and right operating positions takes place approximately two to three times per minute. In this way, the right slot edge 17a and the left slot edge 17b are released alternately.

Zur völligen Restentleerung werden die Schubbalken in Längsrichtung so weit bewegt, daß die Schieber 22 den Schlitz 17 verlassen und diesen Schlitz vollständig freigeben, was durch die Position B3 in Fig. 3 an­gedeutet ist. Dabei verhindern die Abstreifer 20, daß Gut zusammen mit dem Schieber 22 den Schlitz 17 ver­läßt. Das Gut wird vielmehr bis zum Ende der Platte 21 vorgeschoben und fällt dann im Bereich des Schlitzes über den Rand der Platte 21 hinab.For complete residual emptying, the push bars are moved in the longitudinal direction so far that the slides 22 leave the slot 17 and release this slot completely, which is indicated by the position B3 in FIG. 3. The wipers 20 prevent material from leaving the slot 17 together with the slide 22. Rather, the material is advanced to the end of the plate 21 and then falls in the area of the slot over the edge of the plate 21.

Dadurch, daß die Oberkante des Schubbalkens 23 einen vertikalen Abstand vom unteren Ende der Abstreifer 20 hat, kann sich auf den Schubbalken kein Material auf­stauen, das den Gutabfluß aus dem Spalt 17 stören würde.Because the upper edge of the push bar 23 has a vertical distance from the lower end of the wipers 20, no material can build up on the push bar that would disrupt the flow of material from the gap 17.

Ein wesentlicher Vorteil der Erfindung besteht darin, daß die Schieber 22 zwischen allen Betriebsstellungen und auch wenn sie in die Öffnungsstellung B3 gefahren werden, ausschließlich linear in einer horizontalen Ebene bewegt werden. Hierdurch wird die Bewegungs­vorrichtung vereinfacht und es sind insbesondere keine Klappmechanismen für die Restentleerung erforderlich.A major advantage of the invention is that the slide 22 between all operating positions and even when they are in the open position B3 are only moved linearly in a horizontal plane. This simplifies the movement device and, in particular, no folding mechanisms are required for the residual emptying.

Der erfindungsgemäße Dächerschachttrockner eignet sich insbesondere zum Trocknen von Getreide, er ist jedoch auch zur Trocknung anderer rieselfähiger Güter ge­eignet.The roof shaft dryer according to the invention is particularly suitable for drying grain, but it is also suitable for drying other free-flowing goods.

Claims (5)

1. Dächerschachttrockner für rieselfähiges Gut, mit einem Behälter (10), in dem zahlreiche Dächer (12) zum Abstützen des Gutes (14) und zur Bildung von Kanälen (13) zur Luftzufuhr und Luftabfuhr an­geordnet sind, und mit einer am unteren Behälter­ende vorgesehenen Austragvorrichtung (11), die zahlreiche über die Behälterbreite verlaufende Trichter (15) mit Schlitzen (17) aufweist, unter denen jeweils ein quer zum Schlitz bewegbarer Schieber (22) angeordnet ist, wobei sämtliche Schieber (22) durch Schubbalken (23) verbunden und von einer Bewegungsvorrichtung (25) angetrieben sind,
dadurch gekennzeichnet, daß jeder Schieber (22) eine den Schlitz (17) ver­schließende Platte (21) aufweist, die von der Be­wegungsvorrichtung (25) so angetrieben ist, daß sie in der einen Betriebsstellung (B11,B12) nur den einen Schlitzrand (17a) und in der anderen Betriebsstellung (B12,B22) nur den zweiten Schlitzrand (17b) freigibt und in jeder Betriebs­stellung eine zeitlang verharrt, und daß die Schieber (22) durch lineares Weiterbewegen aus dem Bereich der Schlitze (17) entfernbar sind.1. roof shaft dryer for free-flowing goods, with a container (10) in which numerous roofs (12) for supporting the goods (14) and for forming channels (13) for air supply and air removal are arranged, and with one provided at the lower end of the container Discharge device (11), which has numerous funnels (15) with slots (17) running across the width of the container, under each of which a slide (22) movable transversely to the slot is arranged, all of the slides (22) being connected by push bars (23) and are driven by a movement device (25),
characterized in that each slide (22) has a plate (21) which closes the slot (17) and is driven by the movement device (25) in such a way that in the one operating position (B11, B12) only one slot edge (17a ) and in the other operating position (B12, B22) only releases the second slot edge (17b) and remains in each operating position for a while, and that the slides (22) can be removed from the area of the slots (17) by linear further movement. 2. Dächerschachttrockner nach Anspruch 1, dadurch gekennzeichnet, daß am unteren Ende jedes Schlitzes (17) Abstreifer (20) befestigt sind, die bis auf die Platte (21) reichen.2. roof shaft dryer according to claim 1, characterized in that at the lower end of each slot (17) wipers (20) are attached, which extend to the plate (21). 3. Dächerschachttrockner nach Anspruch 1 oder 2, da­durch gekennzeichnet, daß der Schubbalken (23) in vertikalem Abstand unterhalb der Platten (21) ver­läuft.3. roof shaft dryer according to claim 1 or 2, characterized in that the push bar (23) extends at a vertical distance below the plates (21). 4. Dächerschachttrockner nach Anspruch 3, dadurch gekennzeichnet, daß der Schieber (22) umgekehrt -U-förmig ausgebildet und an seinen nach unten ragenden Schenkeln (22a) mit dem Schubbalken ver­bunden ist.4. roof shaft dryer according to claim 3, characterized in that the slide (22) is formed in reverse U-shape and is connected to its downwardly projecting legs (22 a) with the push bar. 5. Dächerschachttrockner nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Seitenwände (16) der Schlitze (17) durch Winkelschienen (18,19) versteift sind.5. Roof shaft dryer according to one of claims 1 to 4, characterized in that the side walls (16) of the slots (17) are stiffened by angle rails (18, 19).
EP89102567A 1988-04-26 1989-02-15 Column dryer with inversed V-shaped deflectors for dripping material Withdrawn EP0339196A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8805479U 1988-04-26
DE8805479U DE8805479U1 (en) 1988-04-26 1988-04-26 Roof shaft dryer for pourable goods

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EP0339196A2 true EP0339196A2 (en) 1989-11-02
EP0339196A3 EP0339196A3 (en) 1990-01-17

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8572863B2 (en) 2007-06-22 2013-11-05 Schmidt-Seeger Gmbh Chute dryer with special air-roof assembly
CN107879130A (en) * 2017-12-22 2018-04-06 河南中农福安农业装备有限公司 A kind of reciprocating row's grain dolly

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8805479U1 (en) * 1988-04-26 1988-06-01 Happle GmbH & Co Maschinenfabrik i.K., 89264 Weißenhorn Roof shaft dryer for pourable goods

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR460577A (en) * 1913-07-21 1913-12-05 Pellegrino Flii Soc Continuous operating, self-discharging dryer for cocoons, cereals and other materials
FR578235A (en) * 1924-03-07 1924-09-20 Dryer for granulated materials
US2660810A (en) * 1951-03-27 1953-12-01 Bryce M Hess Drier for granular material
GB1102402A (en) * 1964-02-18 1968-02-07 Hans Peter Pedersen Improvements in or relating to silos
AU436777B2 (en) * 1967-11-22 1973-06-13 Blaw-Knox Company Desolventizing and deodorizing system for granular materials
FR2444907A1 (en) * 1978-12-22 1980-07-18 Buehler Miag Gmbh Continuous grain drying system - leaves grain unaffected by drying agent between first and second drying zones
JPS582131A (en) * 1981-06-30 1983-01-07 Nippon Kokan Kk <Nkk> Powdered granule delivering apparatus
DE8805479U1 (en) * 1988-04-26 1988-06-01 Happle GmbH & Co Maschinenfabrik i.K., 89264 Weißenhorn Roof shaft dryer for pourable goods

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR460577A (en) * 1913-07-21 1913-12-05 Pellegrino Flii Soc Continuous operating, self-discharging dryer for cocoons, cereals and other materials
FR578235A (en) * 1924-03-07 1924-09-20 Dryer for granulated materials
US2660810A (en) * 1951-03-27 1953-12-01 Bryce M Hess Drier for granular material
GB1102402A (en) * 1964-02-18 1968-02-07 Hans Peter Pedersen Improvements in or relating to silos
AU436777B2 (en) * 1967-11-22 1973-06-13 Blaw-Knox Company Desolventizing and deodorizing system for granular materials
FR2444907A1 (en) * 1978-12-22 1980-07-18 Buehler Miag Gmbh Continuous grain drying system - leaves grain unaffected by drying agent between first and second drying zones
JPS582131A (en) * 1981-06-30 1983-01-07 Nippon Kokan Kk <Nkk> Powdered granule delivering apparatus
DE8805479U1 (en) * 1988-04-26 1988-06-01 Happle GmbH & Co Maschinenfabrik i.K., 89264 Weißenhorn Roof shaft dryer for pourable goods

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 7, Nr. 74 (M-203)[1219], 26. März 1983; & JP-A-58 002 131 (NIPPON KOKAN K.K.) 07-01-1983 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8572863B2 (en) 2007-06-22 2013-11-05 Schmidt-Seeger Gmbh Chute dryer with special air-roof assembly
CN107879130A (en) * 2017-12-22 2018-04-06 河南中农福安农业装备有限公司 A kind of reciprocating row's grain dolly

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DE8805479U1 (en) 1988-06-01
EP0339196A3 (en) 1990-01-17

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