EP0400331B2 - Big storage bin for dusty and pulverulent material - Google Patents
Big storage bin for dusty and pulverulent material Download PDFInfo
- Publication number
- EP0400331B2 EP0400331B2 EP19900108029 EP90108029A EP0400331B2 EP 0400331 B2 EP0400331 B2 EP 0400331B2 EP 19900108029 EP19900108029 EP 19900108029 EP 90108029 A EP90108029 A EP 90108029A EP 0400331 B2 EP0400331 B2 EP 0400331B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- silo
- chamber
- exhaust
- storage bin
- designed
- 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.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 title claims description 7
- 238000005273 aeration Methods 0.000 claims 4
- 239000006185 dispersion Substances 0.000 claims 1
- 239000013590 bulk material Substances 0.000 description 17
- 238000009423 ventilation Methods 0.000 description 16
- 238000010276 construction Methods 0.000 description 2
- 238000000265 homogenisation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- 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 devices.
- boxes can be arranged in the area of the silo bottom, for example, the upper side of which is covered with a porous material, so that the bulk material lying on them is fluidized by blowing air into the boxes.
- This discharge is supported when 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 big 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 generic 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 ventilation line bypasses the metering element, so that the loosening air flows into the homogenizing chamber from all parts of the soil.
- a central ventilation line bypasses the metering element, so that the loosening air flows into the homogenizing chamber from all parts of the soil.
- the ventilation chamber is effective as a dedusting device, since the filling pressure of the silo is reduced as the stored goods flow 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 large silo 1 for dusty bulk material shown in the drawing has a cylindrical silo wall 2 to which a conical hood 3 is arranged concentrically, 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 necessary 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 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 can expand in the ventilation chamber.
- 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)
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 devices.
Zum Fluidisieren können im Bereich des Silobodens beispielsweise 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 Schuttgut 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 Fluidisierungselemente. Ein solcher Siloboden muß aber bei großem Durchmesser durch eine Vielzahl von Säulen oder Wänden abgefangen werden.For fluidizing, boxes can be arranged in the area of the silo bottom, for example, the upper side of which is covered with a porous material, so that the bulk material lying on them is fluidized by blowing air into the boxes. This discharge is supported when 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 big 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. To remedy this, attempts were made to prevent passive silo zones by means of a large number of outlet nozzles 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 fluidizing elements. 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 istjedoch 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 outlet flow 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 Patentanmeldung 0 303 864 vongeschlagen, 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.In order to take this into account, it is proposed according to European patent application 0 303 864 to arrange an annular intermediate floor between the conical hood and the silo wall at a distance above the annular silo bottom, said intermediate floor carrying a plurality of radially arranged slots and the bulk material in an annular space forming the outlet chamber below the Releases intermediate floor, which is connected to a ventilation line. However, this also has the disadvantage that the opening in the silo floor must be made 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 gattungsgemäßen 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 generic 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 ventilation line bypasses the metering element, so that the loosening air flows into the homogenizing 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 one segment is targeted large mass flow is withdrawn and fluidized material does not run in uncontrolled from 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. Diese Aufgabe wird bei einem gattungsgemäßen Großraumsilo durch die Merkmale des kennzeichnenden Teils des Patentanspruchs 1 gelöst. Die Entlüftungskammer ist dabei 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 Enltüftungskammer 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 easily discharged and the filling pressure of the silo is reduced when the stored goods flow through. This object is achieved in a generic large-capacity silo by the features of the characterizing part of patent claim 1. The ventilation chamber is effective as a dedusting device, since the filling pressure of the silo is reduced as the stored goods flow 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 Ausführungsbeispie der Erfindung ist nachstehend unter Bezugnahme auf eine Zeichnung erläutert.An exemplary 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 large silo 1 for dusty bulk material shown in the drawing has a
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 istjeweils 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 necessary 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 part of the bulk material also accumulates , while part of the conveying air is discharged into the discharge line 13 via a connected
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 (4)
- Big storage bin for dusty and pulverulent material, having a conical cap (3) which is located in the centre of an annular bin bottom which is provided with pneumatic dispersion devices and is inclined towards exhaust openings (7) in the cone, to which exhaust openings a shut-off and dosage device (11) is attached, via a connecting piece, as a connecting element to a discharge line (13), characterized in that the connecting piece between each exhaust opening (7) and the dosage device (11) is designed as a box-shaped exhaust chamber (9) which, in each case, bears an aeration chamber (10) attached thereto, each aeration chamber (10) being connected to the exhaust pipe (13) via an aeration tube (12).
- Big storage bin according to claim 1, characterized in that the aeration chamber (10) is designed as a tube which is connected to the end of the exhaust chamber (9) ahead of the shut-off and dosage device (11).
- Big storage bin according to claim 1 or 2, characterized in that an exhaust chamber (9) is designed to taper in the direction of the centre of the cone (3).
- Big storage bin according to one of the preceding claims, characterized in that the exhaust opening (7) is designed as an alongate slot, and the exhaust chamber (9) is designed with an increasing height in the direction of the centre of the cone (3).
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 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0400331A1 EP0400331A1 (en) | 1990-12-05 |
| EP0400331B1 EP0400331B1 (en) | 1992-09-23 |
| EP0400331B2 true EP0400331B2 (en) | 1997-04-23 |
Family
ID=6381664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19900108029 Expired - Lifetime EP0400331B2 (en) | 1989-05-30 | 1990-04-27 | Big storage bin for dusty and pulverulent material |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0400331B2 (en) |
| DE (2) | DE3917533A1 (en) |
| DK (1) | DK0400331T3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009015880A1 (en) | 2009-04-01 | 2010-10-14 | FLSmidth MÖLLER GmbH | Large silo for the storage of dusty or granular bulk material |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4224054C2 (en) * | 1992-07-21 | 1998-01-29 | Krupp Polysius Ag | Open-plan silo |
| DE9307383U1 (en) * | 1993-05-14 | 1994-09-22 | Claudius Peters Ag, 21614 Buxtehude | Bulk silo with relaxation chamber |
| US6342079B1 (en) | 2000-01-27 | 2002-01-29 | Bristol-Myers Squibb Company | Primary intermediate for use in oxidative hair dyeing |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2040480A1 (en) * | 1970-08-14 | 1972-02-17 | Peters Ag Claudius | Device for mixing bulk goods |
| DE2352455B2 (en) * | 1973-10-19 | 1978-07-13 | Portland-Zementwerke Heidelberg Ag, 6900 Heidelberg | Large-capacity silo for flour-like bulk goods |
| DE3014206C2 (en) * | 1980-04-14 | 1983-04-28 | Claudius Peters Ag, 2000 Hamburg | Silo for bulk goods |
| DE3609244C2 (en) * | 1986-03-19 | 1996-09-12 | Peters Ag Claudius | Mixing silo for bulk goods |
| DE3727767A1 (en) * | 1987-08-20 | 1989-04-13 | Ibau Hamburg Ing Ges | SCHUETTGUTSILO WITH PNEUMATIC EMPTYING AND VENTED LEAKAGE CHAMBER |
-
1989
- 1989-05-30 DE DE19893917533 patent/DE3917533A1/en active Granted
-
1990
- 1990-04-27 DE DE9090108029T patent/DE59000314D1/en not_active Expired - Lifetime
- 1990-04-27 DK DK90108029T patent/DK0400331T3/en active
- 1990-04-27 EP EP19900108029 patent/EP0400331B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009015880A1 (en) | 2009-04-01 | 2010-10-14 | FLSmidth MÖLLER GmbH | Large silo for the storage of dusty or granular bulk material |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0400331A1 (en) | 1990-12-05 |
| DE3917533C2 (en) | 1991-08-29 |
| DE3917533A1 (en) | 1990-12-06 |
| DE59000314D1 (en) | 1992-10-29 |
| DK0400331T3 (en) | 1993-01-25 |
| EP0400331B1 (en) | 1992-09-23 |
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