EP0400331A1 - Big storage bin for dusty and pulverulent material - Google Patents

Big storage bin for dusty and pulverulent material Download PDF

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Publication number
EP0400331A1
EP0400331A1 EP90108029A EP90108029A EP0400331A1 EP 0400331 A1 EP0400331 A1 EP 0400331A1 EP 90108029 A EP90108029 A EP 90108029A EP 90108029 A EP90108029 A EP 90108029A EP 0400331 A1 EP0400331 A1 EP 0400331A1
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EP
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Prior art keywords
outlet
silo
chamber
cone
bulk material
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EP90108029A
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German (de)
French (fr)
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EP0400331B2 (en
EP0400331B1 (en
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Hermann Dr.-Ing. Möller
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Johannes Moeller Hamburg GmbH and Co KG
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Johannes Moeller Hamburg GmbH and Co KG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/54—Large containers characterised by means facilitating filling or emptying
    • B65D88/72—Fluidising devices

Definitions

  • the invention relates to a large-capacity silo for dusty and fine-grained bulk material with a conical hood, which stands in the middle of an annular silo bottom, which is provided with pneumatic loosening devices and is inclined to outlet openings in the cone.
  • Such silos are used, for example, for the storage of cement, fly ash or coal dust.
  • Such substances are withdrawn from such a silo by fluidizing the bulk material in the region of the annular silo bottom and draining the fluidized bulk material through metering elements.
  • boxes can be arranged, the top of which is covered with a porous material, so that the air is blown onto the bulk material by blowing air into them.
  • This discharge is supported if the annular silo bottom between the cone and the silo outer wall is inclined in the direction of the respective outlet openings.
  • the removal of the air for fluidizing is a major problem, since in large silos with a diameter of, for example, 25 meters and a filling height of several meters, the air for fluidizing cannot be forced through the column of the bulk material, but with through Discharge openings must escape.
  • DE-A 2,352,455 shows a large-capacity silo with ventilation mats, in which the blown-in air must escape through the metering device. This makes the silo unsuitable for long-term storage, because a relatively large area must be ventilated with correspondingly large amounts of air.
  • DE-OS 36 09 244 describes a device in which only a central vent line bypasses the metering element, so that the loosening air flows into the homogenization chamber from all parts of the soil.
  • a central vent line bypasses the metering element, so that the loosening air flows into the homogenization chamber from all parts of the soil.
  • box-shaped outlet chambers are connected to preferably wide outlet openings in the cone, each of which carries a ventilation chamber, which can be designed as a tube which is connected at the end of an outlet chamber in front of a shut-off and metering element.
  • the vent chamber is there effective as a dedusting device, since the filling pressure of the silo is reduced in the course of the flow of the stored goods through the outlet chamber, so that there is only a low filling pressure in the area of the lower ventilation chamber.
  • the loosening air can thus be easily diverted and dosing takes place without the need to also discharge the loosening air through the metering opening, because it is possible to connect a vent pipe to the respective venting chamber, which is only behind the shut-off and metering element in the Discharge line of the bulk material opens.
  • the bulk silo 1 shown in the drawing for dusty bulk material has a cylindrical silo wall 2 to which a conical hood 3 is concentrically arranged, which is connected to the wall 2 by an annular base 4.
  • the ring base 4 is provided with saddle-shaped inclined walls 5 and with grooves 6 arranged between the saddles and inclined towards the center of the cone, which, like the saddle walls 5, are provided with ventilation elements 8.
  • the cone hood is provided with wide or slit-shaped outlet openings 7, the number of which corresponds to that of the channels 6, so that the filling material from the saddles 5 and the channels 6 is to be conveyed out of the ventilation elements 8 through the outlet openings 7 into the cone under the influence of fluidizing air .
  • box-shaped outlet chambers 9 are connected, each carrying a tubular ventilation chamber 10.
  • a shut-off and metering element 11 is connected to the outlet chambers 9, through which the filling material is to be discharged into a discharge line 13 and from there into a centrally arranged collecting container.
  • the air required for loosening or fluidizing is thus conveyed together with the bulk material through the outlet openings 7 into the outlet chambers 9, but passes out of these in front of the metering elements 11 into the ventilation chambers 10, in which a part of the bulk material also accumulates , while part of the conveying air is discharged into the discharge line 13 via a connected ventilation pipe 12 behind a metering element 11.
  • the filling pressure of the silo 1 is thus reduced when the stored goods flow through the outlet chambers 9, so that there is only a relatively low filling pressure in the region of the lower ventilation chambers, and the stored goods in the Vent chamber can expand.
  • venting chambers 10 can be provided with air connections 15 in order to loosen up their contents if, for example, the system has not been in operation for a long time.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)

Abstract

The large storage bin (1) for bulk products having a conical hood (3) in the centre of an annular bin bottom (4) is provided with pneumatic separating devices (6, 8). In order to be able to remove the separating air without problems and to build up the filling pressure of the bin when the storage product is flowing through, provision is made for box-shaped outlet chambers (9) to be connected to the outlet openings, which outlet chambers each have a venting chamber (10), in which case a venting chamber (10) may be constructed as a pipe which is connected to the end of the outlet chamber (9) upstream of a blocking and metering member (11).

Description

Die Erfindung betrifft einen Großraumsilo für staubfor­miges und feinkörniges Schüttgut mit einer Kegelhaube, die in der Mitte eines ringförmigen Silobodens steht, der mit pneumatischen Auflockerungseinrichtungen verse­hen ist und zu Auslaßöffnungen im Kegel geneigt ist.The invention relates to a large-capacity silo for dusty and fine-grained bulk material with a conical hood, which stands in the middle of an annular silo bottom, which is provided with pneumatic loosening devices and is inclined to outlet openings in the cone.

Derartige Silos finden Anwendung beispielsweise für die Lagerung von Zement, Flugasche oder Kohlenstaub.Such silos are used, for example, for the storage of cement, fly ash or coal dust.

Der Abzug derartiger Stoffe aus einem solchen Silo er­folgt durch eine Fluidisierung des Schüttgutes im Be­reich des ringförmigen Silobodens und einen Abfluß des fluidisierten Schüttgutes durch Dosierorgane.Such substances are withdrawn from such a silo by fluidizing the bulk material in the region of the annular silo bottom and draining the fluidized bulk material through metering elements.

Zum Fluidisieren können im Bereich des Silobodens bei­ spielsweise Kästen angeordnet sein, deren Oberseite mit einem porösen Stoff überzogen ist, so daß durch ein Ein­blasen von Luft in die Kasten eine Fluidisierung des auf ihnen liegenden Schüttgutes eintritt. Diese Austragung wird unterstützt, wenn der ringförmige Siloboden zwi­schen dem Kegel und der Siloaußenwand in Richtung auf die jeweiligen Auslaßöffnungen geneigt ist. Dennoch be­reitet auch bei derartigen Konstruktionen ein großes Problem die Abführung der Luft zum Fluidisieren, da bei Großraumsilos mit einem Durchmesser von beispielsweise 25 Metern und einer Füllhöhe von mehreren Metern die Luft zum Fluidisieren nicht durch die Säule des Schütt­gutes gedrückt werden kann, sondern mit durch die Abzu­gsöffnungen entweichen muß. Gerät beim Entleeren eines Silos jedoch nur das unmittelbar vor oder über einer Auslauföffnung stehende Schüttgut in Bewegung, so erge­ben sich an der Bewegung nicht beteiligte Zonen, in de­nen das Schüttgut über längere Zeit stark verdichtet wird und verklumpt. Um dem abzuhelfen wurde versucht durch eine Vielzahl von Auslaufstutzen mit angeschlosse­nen Dosiergeräten passive Silozonen zu verhindern oder die Fluidisierungsluft vor der Abzugsöffnung durch eine entsprechende konstruktive Gestaltung des Silobodens von dem Schüttgut zu trennen und durch eine eigene Entlüf­tungsleitung abzuleiten. Dazu zählt auch eine Konstruk­tion, bei welcher der Boden des Silos aus einer vorwie­gend horizontalen Platte besteht, die ein Gefälle trägt für die erforderliche Neigung der Fluidisierungselemen­ te. Ein solcher Siloboden muß aber bei großem Durchmes­ser durch eine Vielzahl von Säulen oder Wänden abgefan­gen werden.To fluidize in the area of the silo bottom for example, boxes can be arranged, the top of which is covered with a porous material, so that the air is blown onto the bulk material by blowing air into them. This discharge is supported if the annular silo bottom between the cone and the silo outer wall is inclined in the direction of the respective outlet openings. Nevertheless, even with such constructions, the removal of the air for fluidizing is a major problem, since in large silos with a diameter of, for example, 25 meters and a filling height of several meters, the air for fluidizing cannot be forced through the column of the bulk material, but with through Discharge openings must escape. If, however, only the bulk material standing directly in front of or above an outlet opening moves when emptying a silo, there are zones which are not involved in the movement and in which the bulk material is strongly compressed and clumped over a long period of time. In order to remedy this, attempts were made to prevent passive silo zones by means of a large number of outlet connections with connected metering devices, or to separate the fluidizing air from the bulk material in front of the discharge opening by means of a corresponding structural design of the silo bottom and to divert it through a separate ventilation line. This also includes a construction in which the bottom of the silo consists of a predominantly horizontal plate, which carries a slope for the required inclination of the fluidization elements te. Such a silo floor must be intercepted by a large number of columns or walls with a large diameter.

Um eine Installation von Verladeanlagen unmittelbar un­ter dem Silo zu ermöglichen und damit einen Zwischent­ransport vom Siloauslauf zum Silofahrzeug zu vermeiden ist es bekannt, das Silo mit einer Kegelhaube im Zentrum und damit einem ringförmigen Siloboden zu versehen, so daß alle Kräfte aus dem ringförmigen Boden und der Ke­gelhaube in die Silowand abgetragen werden. Damit ist jedoch der Nachteil verbunden, daß der gesamte Silodruck unmittelbar an dem Dosierorgan mit seinem variablen Querschnitt ansteht, sein Öffnungsquerschnitt muß des­halb verhältnismäßig klein sein. Damit ergibt sich wie­derum im Zulauf zum Öffnungsquerschnitt eine relativ schlanke Auslauftrombe im Schüttgut. Die Ausbildung ei­ner unerwünscht schlanken Auslauftrombe wird im übrigen dadurch herbeigeführt, daß bei Großraumsilos die Fluidi­sierungsluft nicht durch das Schüttgut nach oben hin austreten kann, sondern mit dem Schüttgut durch die Öff­nung des Auslaufes abgeleitet werden muß. Dadurch muß die Fluidisierungsluftmenge auf eine geringe Große redu­ziert werden, die nicht ausreichend ist für eine Fluidi­sierung des Schüttgutes oberhalb großer Silobodenflä­chen.In order to enable an installation of loading systems directly under the silo and thus to avoid intermediate transport from the silo outlet to the silo vehicle, it is known to provide the silo with a conical hood in the center and thus an annular silo bottom, so that all forces from the annular bottom and the Cone hood can be removed in the silo wall. However, this has the disadvantage that the entire silo pressure is applied directly to the metering element with its variable cross-section, and its opening cross-section must therefore be relatively small. This in turn results in a relatively slender discharge trough in the bulk material in the inlet to the opening cross section. The formation of an undesirably slender outlet flow is moreover brought about by the fact that in large-scale silos the fluidizing air cannot escape upwards through the bulk material, but must be discharged with the bulk material through the opening of the outlet. As a result, the amount of fluidizing air must be reduced to a small size, which is not sufficient for fluidizing the bulk material above large silo floor areas.

Um dem Rechnung zu tragen wird nach der europäischen Pa­ tentanmeldung 0 303 864 vorgeschlagen, im Abstand über dem ringförmigen Siloboden einen ringförmigen Zwi­schenboden zwischen der Kegelhaube und der Silowand an­zuordnen, der eine Vielzahl radial angeordneter Schlitze trägt und das Schüttgut in einen die Auslaßkammer bil­denden Ringraum unter dem Zwischenboden abgibt, der mit einer Entlüftungsleitung verbunden ist. Auch damit ist jedoch der Nachteil verbunden, daß die Öffnung im Si­loboden relativ klein gestaltet sein muß, um den Strom des Lagergutes zu beherrschen, so daß wiederum nur mit verhältnismäßig engen Auslauftromben gerechnet werden kann und damit nur ein geringer Anteil an Lagergut an der Auslaufbewegung teil nimmt. Insbesondere bereitet es Probleme, bei einer Restentleerung eines derartigen Silos diejenigen Anteile des Lagergutes zu fluidisieren, die sich während der Abzugsvorgänge nicht in Bewegung befanden.To take this into account, according to the European Pa tentanmeldung 0 303 864 proposed to arrange a ring-shaped intermediate floor between the conical hood and the silo wall at a distance above the annular silo bottom, which supports a plurality of radially arranged slots and releases the bulk material into an annular space forming the outlet chamber under the intermediate floor, which is connected to a ventilation line . However, this also has the disadvantage that the opening in the silo floor must be designed to be relatively small in order to control the flow of the stored goods, so that again only relatively narrow discharge streams can be expected and therefore only a small proportion of stored goods participate in the discharge movement takes. In particular, when there is a residual emptying of such a silo, it is problematic to fluidize those portions of the stored goods that were not in motion during the removal processes.

Die DE - A 2,352,455 zeigt einen Großraumsilo mit Belüf­tungsmatten, bei dem die eingeblasene Luft mit durch das Dosierorgan entweichen muß. Derartiges macht den Silo für eine Langzeitlagerung wenig geeignet, denn es muß eine relativ große Fläche belüftet werden mit entspre­chend großen Luftmengen.DE-A 2,352,455 shows a large-capacity silo with ventilation mats, in which the blown-in air must escape through the metering device. This makes the silo unsuitable for long-term storage, because a relatively large area must be ventilated with correspondingly large amounts of air.

Die DE - OS 36 09 244 beschreibt demgegenüber eine Ein­richtung, in der nur eine zentrale Entlüftungsleitung das Dosierorgan umfährt, so daß die Auflockerungsluft aus allen Teilbereichen des Bodens in die Homogenisier­kammer einströmt. Erfahrungsgemäß kommt es dabei auch nach einem Abstellen der Belüftung zu den Belüftungsele­menten zu einem Nachlauf von Gut aus den einzelnen Feldern des Bodens in die Homogenisierkammer. Derarti­ges ist wünschenswert, wenn in der Homogenisierkammer verschiedene Materialien durchmischt werden sollen, was jedoch nicht Gegenstand der Erfindung darstellt.DE-OS 36 09 244, on the other hand, describes a device in which only a central vent line bypasses the metering element, so that the loosening air flows into the homogenization chamber from all parts of the soil. Experience has shown that even after the ventilation to the ventilation elements has been switched off, material continues to run from the individual fields of the soil into the homogenization chamber. This is desirable if different materials are to be mixed in the homogenization chamber, but this is not the subject of the invention.

Nach der Erfindung wird Wert darauf gelegt, durch eine gezielte Anordnung mehrerer Dosierorgane mit Entlüf­tungskammern parallel jedes einzelne Bodensegment ge­trennt absperren zu können, weil bei einer Langzeitlage­rung von staubförmigen Produkten davon auszugehen ist, daß aus einem Segment gezielt ein großer Massenstrom ab­gezogen wird und nicht unkontrolliert aus anderen Seg­menten noch fluidisiertes Material hinzuläuft.According to the invention, it is important to be able to shut off each individual floor segment separately by means of a targeted arrangement of a plurality of metering elements with ventilation chambers, because in the case of long-term storage of dust-like products it can be assumed that a large mass flow will be withdrawn from a segment and not uncontrolled fluidized material runs into other segments.

Weiterhin ist es Aufgabe der Erfindung, einen Silo zu schaffen, bei dem sich die Auflockerungsluft problemlos ableiten läßt und der Fülldruck des Silos bei der Durch­strömung des Lagergutes abgebaut wird. Gemäß der Erfin­dung ist dafür vorgesehen, daß an vorzugsweise breite Auslaßöffnungen im Kegel kastenförmige Auslaßkammern an­geschlossen sind, die jeweils eine Entlüftungskammer tragen, welche als ein Rohr ausgebildet sein kann, das am Ende einer Auslaßkammer vor einem Absperr und Dosier­organ angeschlossen ist. Die Entlüftungskammer ist da­ bei als Entstaubungseinrichtung wirksam, da der Füll­druck des Silos im Zuge der Durchströmung des Lagergutes durch die Auslaßkammer abgebaut wird, so daß nur noch ein geringer Fülldruck im Bereich der unteren Entlüf­tungskammer vorliegt. Die Auflockerungsluft läßt sich damit problemlos ableiten und eine Dosierung erfolgt ohne den Zwang, auch noch die Auflockerungsluft durch die Dosieröffnung mit ableiten zu müssen, denn es ist möglich, an die jeweiligen Entlüftungskammern jeweils ein Entlüftungsrohr anzuschließen, welches erst hinter dem Absperr und Dosierorgan in der Abförderleitung des Schüttgutes mündet.Furthermore, it is an object of the invention to provide a silo in which the loosening air can be discharged without problems and the filling pressure of the silo is reduced when the stored goods flow through. According to the invention it is provided that box-shaped outlet chambers are connected to preferably wide outlet openings in the cone, each of which carries a ventilation chamber, which can be designed as a tube which is connected at the end of an outlet chamber in front of a shut-off and metering element. The vent chamber is there effective as a dedusting device, since the filling pressure of the silo is reduced in the course of the flow of the stored goods through the outlet chamber, so that there is only a low filling pressure in the area of the lower ventilation chamber. The loosening air can thus be easily diverted and dosing takes place without the need to also discharge the loosening air through the metering opening, because it is possible to connect a vent pipe to the respective venting chamber, which is only behind the shut-off and metering element in the Discharge line of the bulk material opens.

Ein Ausführungsbeispiel der Erfindung ist nachstehend unter Bezugnahme auf eine Zeichnung erläutert.An embodiment of the invention is explained below with reference to a drawing.

Der in der Zeichnung wiedergegebene Großraumsilo 1 für staubförmiges Schüttgut besitzt eine zylindrische Silo­wand 2 zu der konzentrisch eine Kegelhaube 3 angeordnet ist, die durch einen Ringboden 4 mit der Wand 2 verbun­den ist.The bulk silo 1 shown in the drawing for dusty bulk material has a cylindrical silo wall 2 to which a conical hood 3 is concentrically arranged, which is connected to the wall 2 by an annular base 4.

Der Ringboden 4 ist mit sattelförmigen geneigten Wänden 5 versehen sowie mit zwischen den Satteln angeordneten, zum Zentrum des Kegels hin geneigten Rinnen 6, die wie auch die Sattelwände 5 mit Belüftungselementen 8 verse­hen sind.The ring base 4 is provided with saddle-shaped inclined walls 5 and with grooves 6 arranged between the saddles and inclined towards the center of the cone, which, like the saddle walls 5, are provided with ventilation elements 8.

Die Kegelhaube ist mit breiten bzw. schlitzförmigen Aus­laßöffnungen 7 versehen, deren Anzahl derjenigen der Rinnen 6 entspricht, so daß das Füllgut von den Sätteln 5 und den Rinnen 6 unter dem Einfluß von Fluidisierungs­luft aus den Belüftungselementen 8 durch die Auslaßöff­nungen 7 in den Kegel abzufördern ist.The cone hood is provided with wide or slit-shaped outlet openings 7, the number of which corresponds to that of the channels 6, so that the filling material from the saddles 5 and the channels 6 is to be conveyed out of the ventilation elements 8 through the outlet openings 7 into the cone under the influence of fluidizing air .

An die Auslaßöffnungen 7 sind kastenförmige Auslaßkam­mern 9 angeschlossen, die jeweils eine rohrförmige Ent­lüftungskammer 10 tragen. An die Auslaßkammern 9 ist je­weils ein Absperr - und Dosierorgan 11 angeschlossen, durchdas das Füllgut in eine Abförderleitung 13 und von dieser in zentral angeordnete Sammelbehälter abzugeben ist.At the outlet openings 7 box-shaped outlet chambers 9 are connected, each carrying a tubular ventilation chamber 10. A shut-off and metering element 11 is connected to the outlet chambers 9, through which the filling material is to be discharged into a discharge line 13 and from there into a centrally arranged collecting container.

Die zur Auflockerung bzw. zum Fluidisieren notwendige Luft wird damit zwar zusammen mit dem Schüttgut durch die Auslaßöffnungen 7 hindurch in die Auslaßkammern 9 gefördert, gelangt aus diesen heraus jedoch vor den Do­sierorganen 11 in die Entlüftungskammern 10, in denen sich auch ein Teil des Schüttgutes ansammelt, während ein Teil der Förderluft über ein angeschlossenes Entlüf­tungsrohr 12 hinter einem Dosierorgan 11 in die Abför­derleitung 13 abgefördert wird. Der Fülldruck des Silos 1 wird somit bei einer Durchströmung des Lagergutes durch die Auslaßkammern 9 abgebaut, so daß nur ein ver­hältnismäßig niedriger Fülldruck im Bereich der unteren Entlüftungskammern vorliegt, und das Lagergut in der Entlüftungskammer expandieren kann.The air required for loosening or fluidizing is thus conveyed together with the bulk material through the outlet openings 7 into the outlet chambers 9, but passes out of these in front of the metering elements 11 into the ventilation chambers 10, in which a part of the bulk material also accumulates , while part of the conveying air is discharged into the discharge line 13 via a connected ventilation pipe 12 behind a metering element 11. The filling pressure of the silo 1 is thus reduced when the stored goods flow through the outlet chambers 9, so that there is only a relatively low filling pressure in the region of the lower ventilation chambers, and the stored goods in the Vent chamber can expand.

Die Entlüftungskammern 10 können mit Luftanschlüssen 15 versehen sein, um ihren Inhalt aufzulockern, wenn bei­spielsweise die Anlage längere Zeit nicht in Betrieb ge­wesen ist.The venting chambers 10 can be provided with air connections 15 in order to loosen up their contents if, for example, the system has not been in operation for a long time.

Claims (5)

1. Großraumsilo für staubförmiges und feinkörniges Schüttgut, mit einer Kegelhaube, die im Zentrum eines ringförmigen Silobodens steht, der mit pneumatischen Auflockerungseinrichtungen versehen ist und zu Ausla­ßöffnungen im Kegel geneigt ist, dadurch gekennzeichnet, daß an die Auslaßöffnungen kastenförmige Auslaßkammern (9) angeschlossen sind, die jeweils eine Entlüftungskam­mer (10) tragen. 1. Large-capacity silo for dusty and fine-grained bulk material, with a conical hood, which is in the center of an annular silo bottom, which is provided with pneumatic loosening devices and is inclined to outlet openings in the cone, characterized in that that box-shaped outlet chambers (9) are connected to the outlet openings, each carrying a ventilation chamber (10). 2. Großraumsilo nach Anspruch 1, dadurch gekennzeichnet, daß eine Entlüstungskammer (10) als ein Rohr ausgebildet ist, das am Ende der Auslaßkammer (9) vor einem Absperr - und Dosierorgan (11) angeschlossen ist. 2. Large capacity silo according to claim 1, characterized in that a venting chamber (10) is designed as a tube which is connected at the end of the outlet chamber (9) in front of a shut-off and metering element (11). 3. Großraumsilo nach Anspruch 2, dadurch gekennzeichnet, daß an eine Entlüftungskammer (10) ein Entlüftungsrohr (12) angeschlossen ist, das hinter dem Absperr - und Do­sierorgan (11) in einer Abförderleitung (13) mündet. 3. Open-plan silo according to claim 2, characterized in that a vent pipe (12) is connected to a vent chamber (10) which opens behind the shut-off and metering element (11) in a discharge line (13). 4. Großraumsilo nach Anspruch 1, dadurch gekennzeichnet, daß eine Auslaßkammer (9) sich in Richtung auf die Mitte des Kegels (3) hin verjüngend ausgebildet ist. 4. Open-plan silo according to claim 1, characterized in that an outlet chamber (9) tapers towards the center of the cone (3). 5. Großraumsilo nach Anspruch 1, dadurch gekennzeichnet, daß eine Auslaßöffnung als ein länglicher Schlitz ausge­bildet ist und eine Auslaßkammer (9) sich in Richtung zur Mitte des Kegels (3) hin in der Höhe vergrößernd ausgebildet ist. 5. Open-plan silo according to claim 1, characterized in that an outlet opening is designed as an elongated slot and an outlet chamber (9) is formed in the direction of the center of the cone (3) increasing in height.
EP19900108029 1989-05-30 1990-04-27 Big storage bin for dusty and pulverulent material Expired - Lifetime EP0400331B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3917533 1989-05-30
DE19893917533 DE3917533A1 (en) 1989-05-30 1989-05-30 LARGE-ROOM SILO FOR DUST-SHAPED AND FINE-GRAINED SHELLS

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EP0400331A1 true EP0400331A1 (en) 1990-12-05
EP0400331B1 EP0400331B1 (en) 1992-09-23
EP0400331B2 EP0400331B2 (en) 1997-04-23

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WO1994026629A1 (en) * 1993-05-14 1994-11-24 Claudius Peters Aktiengesellschaft Loose product silo with relaxation chamber
US6342079B1 (en) 2000-01-27 2002-01-29 Bristol-Myers Squibb Company Primary intermediate for use in oxidative hair dyeing

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WO1994026629A1 (en) * 1993-05-14 1994-11-24 Claudius Peters Aktiengesellschaft Loose product silo with relaxation chamber
US5575406A (en) * 1993-05-14 1996-11-19 Claudius Peters Aktiengesellschaft Bulk-material silo with expansion chamber
US6342079B1 (en) 2000-01-27 2002-01-29 Bristol-Myers Squibb Company Primary intermediate for use in oxidative hair dyeing

Also Published As

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DK0400331T3 (en) 1993-01-25
DE3917533A1 (en) 1990-12-06
DE3917533C2 (en) 1991-08-29
DE59000314D1 (en) 1992-10-29
EP0400331B2 (en) 1997-04-23
EP0400331B1 (en) 1992-09-23

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