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EP0321710B1 - Silo for bulk material - Google Patents

Silo for bulk material Download PDF

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Publication number
EP0321710B1
EP0321710B1 EP88119411A EP88119411A EP0321710B1 EP 0321710 B1 EP0321710 B1 EP 0321710B1 EP 88119411 A EP88119411 A EP 88119411A EP 88119411 A EP88119411 A EP 88119411A EP 0321710 B1 EP0321710 B1 EP 0321710B1
Authority
EP
European Patent Office
Prior art keywords
silo
base
tunnel
venting
discharge chamber
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
Application number
EP88119411A
Other languages
German (de)
French (fr)
Other versions
EP0321710A1 (en
Inventor
Norbert Dipl.-Ing. Ahrens
Wolfgang Kluger
Joachim-Rudolf Dipl.-Ing. Mihatsch
Hans-Jürgen Rzadki
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.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
Krupp Polysius AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Krupp Polysius AG filed Critical Krupp Polysius AG
Publication of EP0321710A1 publication Critical patent/EP0321710A1/en
Application granted granted Critical
Publication of EP0321710B1 publication Critical patent/EP0321710B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
    • B01F33/4092—Storing receptacles provided with separate mixing chambers

Definitions

  • the invention relates to a silo for bulk material according to the preamble of claim 1.
  • a bulk goods silo according to the preamble of claim 1 is known for example from AT-C-303 625.
  • the venting device connected to the central extraction chamber is formed here by a pipeline which runs from the tip of the conical extraction chamber centrally through the interior of the silo to the silo ceiling.
  • a disadvantage of such a design is the considerable mechanical stress to which this ventilation line is exposed through the material in the silo.
  • the prior art also includes silos (DE-B-25 39 753 and DE-A-27 27 499), in which the material is discharged from the central discharge chamber via a discharge chamber leading radially from the discharge chamber to the peripheral wall of the silo which is also the ventilation of the trigger chamber.
  • a vent line leads from this emptying chamber on the peripheral wall of the silo to a dedusting device or to the upper part of the silo interior.
  • the invention is therefore based on the object, avoiding these disadvantages of the known designs, a silo according to the preamble of claim 1 so that despite simple construction and avoidance of undesirable mechanical stresses of the ventilation device, a uniform flow over the entire circumference of the material from the silo interior to the central deduction chamber is guaranteed.
  • the ventilation device contains a ventilation tunnel which is known per se and leads from the discharge chamber to the peripheral wall of the silo and is connected to a ventilation line.
  • the side walls of this ventilation tunnel have openings through which the material from the silo interior, the ventilation tunnel and through this the central extraction chamber inflows.
  • the venting tunnel thus also allows goods to be transported to the central discharge chamber and in this way ensures uniform, rotationally symmetrical loading of the central discharge chamber.
  • the bulk goods silo illustrated in the drawing contains a silo room 1 for receiving the bulk goods and a room 2 for receiving further conveying devices.
  • the bottom 3 of the silo room 1 is arranged in a known manner inclined towards the center and provided with pneumatic ventilation devices 4.
  • a discharge chamber 5 is arranged centrally above the floor 3 and is enclosed by a conical hood 6. At the lower edge of the hood 6, openings 7 are provided through which material enters the central discharge chamber 5 from the silo space 1.
  • the trigger chamber 5 extends through the Floor 3 through and is provided in its lower area with Gutausöffötechnisch 8.
  • a ventilation device is connected to the extraction chamber 5, which contains a ventilation tunnel 10 arranged on the silo bottom 3 and leading from the extraction chamber 5 to the peripheral wall 9 of the silo, to which a ventilation line 11 is connected, which leads to the upper part of the silo space 1.
  • the ventilation tunnel 10 provided with a rider-like cover 12 has openings 13 in its side walls, through which material enters the ventilation tunnel 10 from the silo space 1 and flows into the extraction chamber 5 through this ventilation tunnel.
  • the ventilation tunnel 10 is connected to the extraction chamber 5 on the one hand via a ventilation opening 14 located in the upper region of the extraction chamber and on the other hand is connected to the extraction chamber 5 via a material outlet opening 15 which lies directly above the floor 3 of the silo.
  • the bottom of the ventilation tunnel 10 is provided with pneumatic ventilation devices 16, which serve to feed the material to the extraction chamber 5 through the openings 13 from the silo space 1 into the ventilation tunnel 10.
  • pneumatic ventilation devices 16 serve to feed the material to the extraction chamber 5 through the openings 13 from the silo space 1 into the ventilation tunnel 10.
  • the floor 3 of the silo space is also provided directly in front of the openings 13 of the ventilation tunnel 10 with pneumatic ventilation devices 17a, 17b.
  • lateral ventilation devices 16a, 16b are also provided in the bottom of the ventilation tunnel 10 and are arranged in the region of the openings 13.
  • the operation of the silo is advantageously carried out as follows according to the method according to the invention: There are two separate blowers, of which the first blower is used to ventilate the central discharge chamber 5 and the second blower is used to ventilate the silo bottom 3 and the venting tunnel 10.
  • the first blower continuously ventilates the central discharge chamber 5 and the second blower alternately either the silo floor 3 or the ventilation tunnel 10. In detail, this is done as follows: The level in the central discharge chamber 5 has dropped to a minimum value, so that the ventilation pressure of the central discharge chamber 5 is set If the minimum value is reached, the ventilation of the ventilation devices 16 of the ventilation tunnel 10 is switched off and the ventilation of the silo bottom 3 is switched on. For this purpose, for example, two channels lying opposite one another can be ventilated with their ventilation devices 4. During the subsequent filling of the central extraction chamber 5, the air from the ventilation of the central extraction chamber and the air from the silo ventilation as well as the air displaced from the central extraction chamber by the rising fill level are discharged via the ventilation tunnel 10.
  • the aeration of the silo floor is switched off and the aeration devices 16 of the Vent tunnel 10 turned on.
  • the material that has entered the venting tunnel 10 during the filling of the central extraction chamber 5 is reliably guided or returned to the central extraction chamber.
  • the lateral ventilation devices 16a, 16b arranged in the venting tunnel 10 in the area of the product inlet openings 13 are combined with the pneumatic ventilation devices 17a, 17b located outside the ventilation tunnel 10 in front of the product inlet openings 13. These ventilation devices 16a, 16b, 17a, 17b are operated simultaneously with the ventilation devices of the opposite sector of the silo floor 3.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Storage Of Harvested Produce (AREA)

Description

Die Erfindung betrifft ein Silo für Schüttgut entsprechend dem Oberbegriff des Anspruches 1.The invention relates to a silo for bulk material according to the preamble of claim 1.

Ein Schüttgutsilo entsprechend dem Oberbegriff des Anspruches 1 ist beispielsweise durch die AT-C-303 625 bekannt. Die an die zentrale Abzugskammer angeschlossene Entlüftungseinrichtung wird hierbei durch eine von der Spitze der kegelförmigen Abzugskammer zentral durch den Innenraum des Silos zur Silodecke geführte Rohrleitung gebildet. Nachteilig ist bei einer derartigen Ausführung die erhebliche mechanische Beanspruchung, der diese Entlüftungsleitung durch das Gut im Silo ausgesetzt ist.A bulk goods silo according to the preamble of claim 1 is known for example from AT-C-303 625. The venting device connected to the central extraction chamber is formed here by a pipeline which runs from the tip of the conical extraction chamber centrally through the interior of the silo to the silo ceiling. A disadvantage of such a design is the considerable mechanical stress to which this ventilation line is exposed through the material in the silo.

Zum Stand der Technik gehören weiterhin Silos (DE-B-25 39 753 und DE-A-27 27 499), bei denen der Austrag des Gutes aus der zentralen Abzugskammer über eine radial von der Abzugskammer zur Umfangswand des Silos führende Entleerungskammer erfolgt, über die zugleich die Entlüftung der Abzugskammer vorgenommen wird. Von dieser Entleerungskammer führt an der Umfangswand des Silos eine Entlüftungsleitung zu einer Entstaubungseinrichtung oder zum oberen Teil des Siloinnenraumes. Nachteilig ist bei einer derartigen Ausführung, daß eine solche, gegen den Innenraum des Silos abgeschlossene Entleerungs- und Entlüftungskammer erheblich die Geometrie des Silos stört und ein über den gesamten Umfang gleichmäßiges Zuströmen des Gutes aus dem Siloinnenraum in die zentrale Abzugskammer beeinträchtigt.The prior art also includes silos (DE-B-25 39 753 and DE-A-27 27 499), in which the material is discharged from the central discharge chamber via a discharge chamber leading radially from the discharge chamber to the peripheral wall of the silo which is also the ventilation of the trigger chamber. A vent line leads from this emptying chamber on the peripheral wall of the silo to a dedusting device or to the upper part of the silo interior. The disadvantage of such a design that such, against the interior of the The emptying and venting chamber, which is closed off from the silo, significantly disrupts the geometry of the silo and impairs an even flow of the goods from the interior of the silo into the central discharge chamber.

Der Erfindung liegt daher die Aufgabe zugrunde, unter Vermeidung dieser Nachteile der bekannten Ausführungen ein Silo entsprechend dem Oberbegriff des Anspruches 1 so auszubilden, daß trotz einfacher Bauweise und Vermeidung unerwünschter mechanischer Beanspruchungen der Entlüftungseinrichtung ein allseitig über den gesamten Umfang gleichmäßiges Zuströmen des Gutes aus dem Siloinnenraum zur zentralen Abzugskammer gewährleistet ist.The invention is therefore based on the object, avoiding these disadvantages of the known designs, a silo according to the preamble of claim 1 so that despite simple construction and avoidance of undesirable mechanical stresses of the ventilation device, a uniform flow over the entire circumference of the material from the silo interior to the central deduction chamber is guaranteed.

Diese Aufgabe wird erfindungsgemäß durch das kennzeichnende Merkmal des Anspruches 1 gelöst. Zweckmäßige Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.This object is achieved by the characterizing feature of claim 1. Appropriate embodiments of the invention are the subject of the dependent claims.

Bei dem erfindungsgemäßen Silo enthält die Entlüftungseinrichtung einen an sich bekannten, von der Abzugskammer zur Umfangswand des Silos führenden, an eine Entlüftungsleitung angeschlossenen Entlüftungstunnel. Erfindungsgemäß weisen die Seitenwände dieses Entlüftungstunnels Öffnungen auf, durch die Gut aus dem Siloinnenraum dem Entlüftungstunnel und durch diesen der zentralen Abzugskammer zuströmt. Der Entlüftungstunnel ermöglicht damit zugleich einen Guttransport zur zentralen Abzugskammer und gewährleistet auf diese Weise eine gleichmäßige, rotationssymmetrische Beschickung der zentralen Abzugskammer.In the silo according to the invention, the ventilation device contains a ventilation tunnel which is known per se and leads from the discharge chamber to the peripheral wall of the silo and is connected to a ventilation line. According to the invention, the side walls of this ventilation tunnel have openings through which the material from the silo interior, the ventilation tunnel and through this the central extraction chamber inflows. The venting tunnel thus also allows goods to be transported to the central discharge chamber and in this way ensures uniform, rotationally symmetrical loading of the central discharge chamber.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung veranschaulicht. Es zeigen

Fig.1
einen Vertikalschnitt durch ein erfindungsgemäßes Silo,
Fig.2
einen Schnitt längs der Linie II-II in der Fig.1.
An embodiment of the invention is illustrated in the drawing. Show it
Fig. 1
a vertical section through a silo according to the invention,
Fig. 2
a section along the line II-II in Fig.1.

Das in der Zeichnung veranschaulichte Schüttgutsilo enthält einen zur Aufnahme des Schüttgutes dienenden Siloraum 1 und einen zur Aufnahme von weiterfördernden Einrichtungen dienenden Raum 2.The bulk goods silo illustrated in the drawing contains a silo room 1 for receiving the bulk goods and a room 2 for receiving further conveying devices.

Der Boden 3 des Siloraumes 1 ist in bekannter Weise zur Mitte hin geneigt angeordnet und mit pneumatischen Belüftungseinrichtungen 4 versehen.The bottom 3 of the silo room 1 is arranged in a known manner inclined towards the center and provided with pneumatic ventilation devices 4.

Zentral über dem Boden 3 ist eine Abzugskammer 5 angeordnet, die von einer kegelförmigen Haube 6 umschlossen wird. Am unteren Rand der Haube 6 sind Öffnungen 7 vorgesehen, durch die Gut aus dem Siloraum 1 in die zentrale Abzugskammer 5 eintritt. Die Abzugskammer 5 erstreckt sich durch den Boden 3 hindurch und ist in ihrem unteren Bereich mit Gutaustrittsöffnungen 8 versehen.A discharge chamber 5 is arranged centrally above the floor 3 and is enclosed by a conical hood 6. At the lower edge of the hood 6, openings 7 are provided through which material enters the central discharge chamber 5 from the silo space 1. The trigger chamber 5 extends through the Floor 3 through and is provided in its lower area with Gutausöfföffnungen 8.

An die Abzugskammer 5 ist eine Entlüftungseinrichtung angeschlossen, die einen auf dem Siloboden 3 angeordneten, von der Abzugskammer 5 zur Umfangswand 9 des Silos führenden Entlüftungstunnel 10 enthält, an den eine Entlüftungsleitung 11 angeschlossen ist, die zum oberen Teil des Siloraumes 1 führt.A ventilation device is connected to the extraction chamber 5, which contains a ventilation tunnel 10 arranged on the silo bottom 3 and leading from the extraction chamber 5 to the peripheral wall 9 of the silo, to which a ventilation line 11 is connected, which leads to the upper part of the silo space 1.

Der mit einer reiterartigen Abdeckung 12 versehene Entlüftungstunnel 10 weist in seinen Seitenwänden Öffnungen 13 auf, durch die Gut aus dem Siloraum 1 in den Entlüftungstunnel 10 eintritt und durch diesen Entlüftungstunnel der Abzugskammer 5 zuströmt.The ventilation tunnel 10 provided with a rider-like cover 12 has openings 13 in its side walls, through which material enters the ventilation tunnel 10 from the silo space 1 and flows into the extraction chamber 5 through this ventilation tunnel.

Der Entlüftungstunnel 10 ist mit der Abzugskammer 5 einerseits über eine im oberen Bereich der Abzugskammer befindliche Entlüftungsöffnung 14 verbunden und steht andererseits mit der Abzugskammer 5 über eine Gutaustrittsöffnung 15 in Verbindung, die unmittelbar über dem Boden 3 des Silos liegt.The ventilation tunnel 10 is connected to the extraction chamber 5 on the one hand via a ventilation opening 14 located in the upper region of the extraction chamber and on the other hand is connected to the extraction chamber 5 via a material outlet opening 15 which lies directly above the floor 3 of the silo.

Der Boden des Entlüftungstunnels 10 ist mit pneumatischen Belüftungseinrichtungen 16 versehen, die dazu dienen, das durch die Öffnungen 13 aus dem Siloraum 1 in den Entlüftungstunnel 10 gelangende Gut der Abzugskammer 5 zuzuführen. Zur Unterstützung dieser Gutbewegung ist ferner der Boden 3 des Siloraumes auch unmittelbar vor den Öffnungen 13 des Entlüftungstunnels 10 mit pneumatischen Belüftungseinrichtungen 17a, 17b versehen.The bottom of the ventilation tunnel 10 is provided with pneumatic ventilation devices 16, which serve to feed the material to the extraction chamber 5 through the openings 13 from the silo space 1 into the ventilation tunnel 10. For support this good movement, the floor 3 of the silo space is also provided directly in front of the openings 13 of the ventilation tunnel 10 with pneumatic ventilation devices 17a, 17b.

Außer den etwa mittig im Entlüftungstunnel 10 angeordneten Belüftungseinrichtungen 16 sind im Boden des Entlüftungstunnels 10 noch seitliche Belüftungseinrichtungen 16a, 16b vorgesehen, die im Bereich der Öffnungen 13 angeordnet sind.In addition to the ventilation devices 16 arranged approximately centrally in the ventilation tunnel 10, lateral ventilation devices 16a, 16b are also provided in the bottom of the ventilation tunnel 10 and are arranged in the region of the openings 13.

Der Betrieb des Silos geschieht nach dem erfindungsgemäßen Verfahren zweckmäßig wie folgt:
Es finden zwei getrennte Gebläse Verwendung, von denen das erste Gebläse zur Belüftung der zentralen Abzugskammer 5 und das zweite Gebläse zur Belüftung des Silobodens 3 und des Entlüftungstunnels 10 dient.The operation of the silo is advantageously carried out as follows according to the method according to the invention:
There are two separate blowers, of which the first blower is used to ventilate the central discharge chamber 5 and the second blower is used to ventilate the silo bottom 3 and the venting tunnel 10.

Während des Silobetriebes sind beide Gebläse ständig eingeschaltet. Das erste Gebläse belüftet dauernd die zentrale Abzugskammer 5 und das zweite Gebläse abwechselnd entweder den Siloboden 3 oder den Entlüftungstunnel 10. Im einzelnen geschieht dies wie folgt:
Ist der Füllstand in der zentralen Abzugskammer 5 auf einen Mindestwert gesunken, so daß der Belüftungsdruck der zentralen Abzugskammer 5 einen eingestellten Mindestwert erreicht, so wird die Belüftung der Belüftungseinrichtungen 16 des Entlüftungstunnels 10 abgeschaltet und die Belüftung des Silobodens 3 eingeschaltet. Zu diesem Zweck können beispielsweise zwei einander gegenüberliegende Rinnen mit ihren Belüftungseinrichtungen 4 belüftet werden. Während der nun folgenden Füllung der zentralen Abzugskammer 5 wird die Luft aus der Belüftung der zentralen Abzugskammer und die Luft aus der Silobelüftung sowie die aus der zentralen Abzugskammer durch den steigenden Füllstand verdrängte Luft über den Entlüftungstunnel 10 abgeführt.Both fans are constantly switched on during silo operation. The first blower continuously ventilates the central discharge chamber 5 and the second blower alternately either the silo floor 3 or the ventilation tunnel 10. In detail, this is done as follows:
The level in the central discharge chamber 5 has dropped to a minimum value, so that the ventilation pressure of the central discharge chamber 5 is set If the minimum value is reached, the ventilation of the ventilation devices 16 of the ventilation tunnel 10 is switched off and the ventilation of the silo bottom 3 is switched on. For this purpose, for example, two channels lying opposite one another can be ventilated with their ventilation devices 4. During the subsequent filling of the central extraction chamber 5, the air from the ventilation of the central extraction chamber and the air from the silo ventilation as well as the air displaced from the central extraction chamber by the rising fill level are discharged via the ventilation tunnel 10.

Erreicht der Füllstand in der zentralen Abzugskammer 5 einen Maximalwert, was von einem Füllstandsmelder angezeigt oder durch einen Höchstwert des Belüftungsdruckes signalisiert wird, oder ist eine einstellbare Zeit der Befüllung abgelaufen,so wird die Belüftung des Silobodens abgeschaltet, und es werden stattdessen die Belüftungseinrichtungen 16 des Entlüftungstunnels 10 eingeschaltet. Dadurch wird das Gut, das während der Füllung der zentralen Abzugskammer 5 in den Entlüftungstunnel 10 gelangt ist, sicher in die zentrale Abzugskammer geführt bzw. zurückgeführt.If the fill level in the central discharge chamber 5 reaches a maximum value, which is indicated by a fill level indicator or is signaled by a maximum value of the aeration pressure, or if an adjustable time for the filling has expired, the aeration of the silo floor is switched off and the aeration devices 16 of the Vent tunnel 10 turned on. As a result, the material that has entered the venting tunnel 10 during the filling of the central extraction chamber 5 is reliably guided or returned to the central extraction chamber.

Ist dann der Füllstand der zentralen Abzugskammer 5 wieder auf den Mindestwert gesunken, so wird die Belüftung des nächsten Rinnenpaares des Silobodens 3 eingeschaltet und die Belüftung des Entlüftungstunnel 10 abgeschaltet.If the filling level of the central discharge chamber 5 then drops again to the minimum value, the ventilation of the next pair of channels of the silo bottom 3 is switched on and the ventilation of the ventilation tunnel 10 is switched off.

Die im Entlüftungstunnel 10 im Bereich der Guteintrittsöffnungen 13 angeordneten seitlichen Belüftungseinrichtungen 16a, 16b werden zusammen mit den außerhalb des Entlüftungstunnel 10 vor den Guteintrittsöffnungen 13 befindlichen pneumatischen Belüftungseinrichtungen 17a, 17b belüftet. Diese Belüftungseinrichtungen 16a, 16b, 17a, 17b werden gleichzeitig mit den Belüftungseinrichtungen des gegenüberliegenden Sektors des Silobodens 3 betrieben.The lateral ventilation devices 16a, 16b arranged in the venting tunnel 10 in the area of the product inlet openings 13 are combined with the pneumatic ventilation devices 17a, 17b located outside the ventilation tunnel 10 in front of the product inlet openings 13. These ventilation devices 16a, 16b, 17a, 17b are operated simultaneously with the ventilation devices of the opposite sector of the silo floor 3.

Claims (7)

  1. Silo for bulk material, containing
    a) a silo base (3) provided with pneumatic aerating arrangements (4),
    b) a discharge chamber (5) which is arranged centrally above the silo base (3) and has material inlet openings (7) provided in its peripheral wall,
    c) a material discharge opening arranged centrally in the silo base (3),
    d) a venting system (10, 11) connected to the discharge chamber (5),
    characterised by the following feature:
    e) the venting system contains a venting tunnel (10) which is arranged on the silo base (3) and leads from the discharge chaser (5) to the peripheral wall (9) of the silo, is connected to a vent pipe (11) and has openings (13) for material to enter in its side walls.
  2. Silo as claimed in claim 1, characterised in that the base of the venting tunnel (10) is provided with pneumatic aerating arrangements (16).
  3. Silo as claimed in claim 1, characterised in that the silo base (3) which is located outside the venting tunnel (10) before the material inlet openings (13) is provided with pneumatic aerating arrangements (17a, 17b).
  4. Silo as claimed in claim 1, characterised in that the venting tunnel (10) which is provided with a straddling cover (12) communicates with the discharge chamber (5) on the one hand by means of a vent opening (14) in the upper region of the discharge chamber and on the other hand by means of a material discharge opening (15) arranged right above the silo base (3).
  5. Silo as claimed in claim 2, characterised in that the base of the venting tunnel (10) has not only aerating arrangements (16) which are arranged centrally but also lateral aerating arrangements (16a, 16b) which are arranged in the region of the openings (13).
  6. Method of operating a silo as claimed in claims 1 and 2, characterised by the following features:
    a) two separate blowers are used, of which the first blower serves for aeration of the central discharge chamber (5) and the second blower serves for aeration of the silo base (3) and of the venting tunnel (10);
    b) both blowers are permanently switched on during operation of the silo;
    c) the second blower alternately aerates the silo base (3) and the venting tunnel (10), and the aeration of the silo base is switched on when the filling level in the central discharge chamber (5) has fallen to a minimum level, whereas the aeration of the silo base is switched off and the aeratlon of the venting tunnel (10) is switched on when the filling level in the central discharge chamber (5) has reached a maximum value.
  7. Method as claimed in claim 6 for operating a silo as claimed in claims 1, 2, 3 and 5, characterised in that the lateral aerating arrangements (16a, 16b) arranged in the venting tunnel (10) in the region of the material inlet openings (13) are aerated together with the aerating arrangements (17a, 17b) of the silo base (3) which are located outside the venting tunnel (10) and before the material inlet openings (13).
EP88119411A 1987-12-22 1988-11-22 Silo for bulk material Expired - Lifetime EP0321710B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3743637 1987-12-22
DE19873743637 DE3743637A1 (en) 1987-12-22 1987-12-22 SILO FOR SCHUETTGUT

Publications (2)

Publication Number Publication Date
EP0321710A1 EP0321710A1 (en) 1989-06-28
EP0321710B1 true EP0321710B1 (en) 1993-02-03

Family

ID=6343318

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88119411A Expired - Lifetime EP0321710B1 (en) 1987-12-22 1988-11-22 Silo for bulk material

Country Status (4)

Country Link
US (1) US4930943A (en)
EP (1) EP0321710B1 (en)
DE (2) DE3743637A1 (en)
ES (1) ES2037186T3 (en)

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CN105438854A (en) * 2014-08-26 2016-03-30 潞城市卓越水泥有限公司 Flow steadying bin distributing device

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AU2003274940A1 (en) * 2002-09-03 2004-03-29 Thomas W. Hedrick Transfer terminal with surge bin
DE10261292B4 (en) * 2002-12-27 2006-09-14 Eisenmann Maschinenbau Gmbh & Co. Kg Reservoir for powdered media
DE10261276B4 (en) * 2002-12-27 2005-12-01 Eisenmann Maschinenbau Gmbh & Co. Kg Reservoir for powdered media

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105438854A (en) * 2014-08-26 2016-03-30 潞城市卓越水泥有限公司 Flow steadying bin distributing device

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US4930943A (en) 1990-06-05
DE3878199D1 (en) 1993-03-18
DE3743637A1 (en) 1989-07-06
ES2037186T3 (en) 1993-06-16
EP0321710A1 (en) 1989-06-28

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