EP0030362B1 - Storage and mixing silo for bulk material - Google Patents

Storage and mixing silo for bulk material Download PDF

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Publication number
EP0030362B1
EP0030362B1 EP80107558A EP80107558A EP0030362B1 EP 0030362 B1 EP0030362 B1 EP 0030362B1 EP 80107558 A EP80107558 A EP 80107558A EP 80107558 A EP80107558 A EP 80107558A EP 0030362 B1 EP0030362 B1 EP 0030362B1
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EP
European Patent Office
Prior art keywords
chamber
annular chamber
silo
mixing
silo according
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Expired
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EP80107558A
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German (de)
French (fr)
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EP0030362A1 (en
Inventor
Norbert Ahrens
Heinrich Klockenbusch
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ThyssenKrupp Industrial Solutions AG
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Krupp Polysius AG
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Publication of EP0030362A1 publication Critical patent/EP0030362A1/en
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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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/50—Mixing receptacles

Definitions

  • the invention relates to a storage and mixing silo for bulk goods, containing a storage space in a common silo body and an emptying space provided in the lower region of the silo body, which is connected to the storage space via a material inlet opening provided in its inner boundary wall and whose outer boundary wall has at least one material outlet opening has, the storage space and emptying space having devices for pneumatic floor ventilation and wherein the material inlet opening and the material outlet opening of the emptying chamber are arranged offset in the circumferential direction of this chamber.
  • a central mixing chamber is provided in the lower region of the silo chamber, the peripheral wall of which in the lower part has a number of material inlet openings over which the mixing chamber communicates with the pantry. From this mixing space, an approximately radial discharge channel, the height of which corresponds approximately to that of the mixing space, leads to an outlet opening in the outer wall of the silo body.
  • the mixing effect achieved with such a silo in the central mixing chamber is unsatisfactory. In particular, it can happen that strands of material that enter the mixing chamber through one of the numerous material inlet openings reach the emptying channel almost immediately, without participating in an intensive mixing movement within the mixing chamber.
  • a storage and mixing silo of the type mentioned at the outset is also known (DE-A1-23 35 525), in which an approximately U-shaped emptying space is provided in the lower region of the silo body outside the funnel-shaped beveled storage space.
  • This emptying space is bounded towards the storage space by the bevelled side walls of the funnel-shaped lower area of the storage space.
  • material inlet openings are provided through which the material can be conveyed from the storage space into the emptying space by means of pneumatic feeders.
  • the invention is therefore based on the object, while avoiding these shortcomings of the known designs, to form a storage and mixing silo of the type mentioned in such a way that, while at the same time being more economical and compact, there is a substantially improved mixing and homogenizing effect.
  • the emptying space provided in the lower region of the silo body also fulfills the function of a mixing space due to its design as an annular chamber with a mutually offset product inlet and product outlet opening and with independent ventilation of the individual zones of the annular chamber.
  • a mixing space due to its design as an annular chamber with a mutually offset product inlet and product outlet opening and with independent ventilation of the individual zones of the annular chamber.
  • the bulk material to be mixed passes through the individual zones that can be ventilated independently of one another within the annular chamber, and is thus well homogenized.
  • FIGS. 1 and 2 A first exemplary embodiment of the storage and mixing silo is first described with reference to FIGS. 1 and 2, which is intended in particular for fine-grained and powdery bulk material.
  • the silo contains a storage space 2, which by far takes up the largest volume, and in its lower area a mixing space 3, which is smaller than the storage space 2 and which is formed by an annular chamber 4.
  • the annular chamber 4 forms a mixing chamber 3 which is continuous in the circumferential direction (cf. FIG. 2).
  • the annular chamber 4 is formed by an outer boundary wall 5, which can simultaneously be the outer wall of the silo body 1, further by an inner boundary wall 6 as well as by a bottom 7 and an inclined top wall 8, which is the internally inclined, funnel-shaped bottom of the storage space 2 and which therefore runs obliquely inwards from the upper region of the outer boundary wall 5 to the vertically oriented inner boundary wall 6.
  • the inner boundary wall 6 thus adjoins the lower edge of the funnel-shaped bottom (top wall 8) of the storage space 2.
  • This inner boundary wall 6 is therefore formed by a cylindrical wall part of this storage space that extends as far as the central, ventilated base part 9 of the storage space 2, this resulting in a central, deep lowering space 2a in the lower region of the storage space 2.
  • a product inlet opening 10 is provided in the area of the annular chamber base 7.
  • This material inlet opening 10 to the mixing chamber 3 is assigned a collecting conveyor 11, which is arranged in the central base part 9 of the storage space 2, preferably in such a way that it traverses this central base part 9 diametrically.
  • the collecting conveyor 11 can be a pneumatic conveyor trough, which is associated with conventional pneumatic loosening units 12 on both sides, which are also incorporated in the central base part 9.
  • this product outlet opening 13 can be assigned in the customary manner non-illustrated product outlet members for blocking and metering. It is important, however, that this material outlet opening 13 of the outer boundary wall 5 is at a higher level than the material inlet opening 10 on the chamber bottom 7 in the inner boundary wall 6. It is particularly expedient to provide the material outlet opening 13 with a radial distance between the inner and the outer annular chamber. Assign boundary wall 6 or 5 extending overflow channel 14, which is slightly inclined towards the outer boundary wall 5.
  • This overflow channel 14 can be designed in the form of a simple inclined discharge chute or else in the form of a pneumatic conveyor channel or in the form of another suitable conveyor element. In any case, the overflow channel 14 is open at the top, and the upper overflow edges 15 of the channel are approximately horizontal and of the same height, so that the product level S within the mixing chamber 3 is determined thereby.
  • the partial ventilation zone 17 assigned to the material inlet opening 10 and the partial ventilation zone 21 directly assigned to the product outlet opening 13 are always heavily ventilated during operation, preferably with the same amount of pressure being applied.
  • FIGS. 3 and 4 A second exemplary embodiment of the storage and mixing silo is illustrated in FIGS. 3 and 4, with FIG. 3 only showing the left half of the silo body 31 in comparison to FIG. 1, while the right half, not shown, is carried out in exactly the same way can be, as has been explained with reference to FIG. 1.
  • the silo body 31 contains a storage space 32 and a mixing space 33 which is smaller than the storage space 32 and which is formed by an annular chamber 34.
  • the outer structure of the annular chamber 34 is initially designed in the same way as the annular chamber 4 in the example of FIGS. 1 and 2, that is to say it contains an outer boundary wall 35, an inner boundary wall 36, a chamber floor 37 and one from the upper region of the outer boundary wall 35 obliquely downward-inward to the inner boundary wall 36 extending top wall 38. Also in this second exemplary embodiment, the radial width B and the height H of the boundary walls 35, 36 which run vertically at least in their lower region are defined in exactly the same way as for Part has been explained with reference to the silo inner diameter D with reference to Figures 1 and 2.
  • the overflow channel 44 which is also designed and arranged in this case in the same way as in the first exemplary embodiment, is expediently designed for the joint reception of mixed material from the two partial mixing spaces 33a, 33b, so that the material can be discharged through the material outlet opening 43 together.
  • the feed inlet opening 40a, 40b of each partial mixing space 33a or 33b is located in the region of the chamber floor 37, while the outlet opening 43 is at a correspondingly elevated level and with its overflow channel 44 the product level, i.e. the Height of the filling in the partial mixing rooms 33a, 33b determined.
  • the chamber floor 37 is also subdivided into several partial ventilation zones, namely it contains the partial ventilation zones 49, 50, 51, 52 in the area of the partial mixing room 33a and approximately in the area of the partial mixing room 33b Partial ventilation zones 49 ', 50', 51 'and 52' lying symmetrically to the first-mentioned partial ventilation zones, as illustrated in FIG. 4.
  • the partial ventilation zones 49, 49 'and 52, 52' which are directly adjacent to the respective product inlet opening 40a or 40b and the product outlet opening 43, can then always be strongly ventilated in the two partial mixing rooms 33a, 33b, while those in both parts -Mixing spaces 33a, 33b, that is to say in both circumferential directions, intermediate ventilation zones 50, 51 and 50 ', 51' in each case can only be periodically alternately ventilated in the order from the area of the product inlet opening to the product outlet opening.

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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 Vorrats- und Mischsilo für Schüttgut, enthaltend in einem gemeinsamen Silokörper einen Vorratsraum sowie einen im unteren Bereich des Silokörpers vorgesehenen Entleerungsraum, der über eine in seiner inneren Begrenzungswand vorgesehene Gutzulauföffnung mit dem Vorratsraum in Verbindung steht und dessen äußere Begrenzungswand wenigstens eine Gutauslauföffnung besitzt, wobei Vorratsraum und Entleerungsraum Einrichtungen zur pneumatischen Bodenbelüftung aufweisen und wobei die Gutzulauföffnung und die Gutauslauföffnung der Entleerungskammer in Umfangsrichtung dieser Kammer gegeneinander versetzt angeordnet sind.The invention relates to a storage and mixing silo for bulk goods, containing a storage space in a common silo body and an emptying space provided in the lower region of the silo body, which is connected to the storage space via a material inlet opening provided in its inner boundary wall and whose outer boundary wall has at least one material outlet opening has, the storage space and emptying space having devices for pneumatic floor ventilation and wherein the material inlet opening and the material outlet opening of the emptying chamber are arranged offset in the circumferential direction of this chamber.

Bei bekannten Vorrats- und Mischsilos für Schüttgut (DE-A1-2 657 596, DE-U-7531 503) ist im unteren Bereich der Silokammer ein zentraler Mischraum vorgesehen, dessen Umfangswand im unteren Teil eine Anzahl von Gutzulauföffnungen aufweist, über die der Mischraum mit dem Vorratsraum in Verbindung steht. Von diesem Mischraum führt ein etwa radial verlaufender Entleerungskanal, dessen Höhe etwa der des Mischraumes entspricht, zu einer Auslaßöffnung in der Außenwand des Silokörpers.In known storage and mixing silos for bulk material (DE-A1-2 657 596, DE-U-7531 503), a central mixing chamber is provided in the lower region of the silo chamber, the peripheral wall of which in the lower part has a number of material inlet openings over which the mixing chamber communicates with the pantry. From this mixing space, an approximately radial discharge channel, the height of which corresponds approximately to that of the mixing space, leads to an outlet opening in the outer wall of the silo body.

Der bei einem solchen Silo in der zentralen Mischkammer erzielte Mischeffekt ist nicht befriedigend. So kann es insbesondere passieren, daß Gutsträhnen, die durch eine der zahlreichen Gutzulauföffnungen in den Mischraum eintreten, nahezu unmittelbar in den Entleerungskanal gelangen, ohne an einer intensiven Mischbewegung innerhalb des Mischraumes teilzunehmen.The mixing effect achieved with such a silo in the central mixing chamber is unsatisfactory. In particular, it can happen that strands of material that enter the mixing chamber through one of the numerous material inlet openings reach the emptying channel almost immediately, without participating in an intensive mixing movement within the mixing chamber.

Es ist weiterhin ein Vorrats- und Mischsilo der eingangs genannten Art bekannt (DE-A1-23 35 525), bei dem im unteren Bereich des Silokörpers außerhalb des trichterförmig abgeschrägten Vorratsraumes ein in Aufsicht etwa U-förmiger Entleerungsraum vorgesehen ist. Dieser Entleerungsraum wird zum Vorratsraum hin durch die abgeschrägten Seitenwände des trichterförmigen unteren Bereiches des Vorratsraumes begrenzt. Im untersten Teil dieser abgeschrägten Seitenwände sind Gutzulauföffnungen vorgesehen, durch die das Gut mittels pneumatischer Zuförderer aus dem Vorratsraum in den Entleerungsraum gelangt.A storage and mixing silo of the type mentioned at the outset is also known (DE-A1-23 35 525), in which an approximately U-shaped emptying space is provided in the lower region of the silo body outside the funnel-shaped beveled storage space. This emptying space is bounded towards the storage space by the bevelled side walls of the funnel-shaped lower area of the storage space. In the lowermost part of these bevelled side walls, material inlet openings are provided through which the material can be conveyed from the storage space into the emptying space by means of pneumatic feeders.

Ein vom Vorratsraum gesonderter Mischraum ist bei diesem bekannten Silo nicht vorgesehen. Auch im Entleerungsraum kann sich ein zusätzlicher Mischeffekt nicht einstellen, zumal die Aufenthaltszeit der einzelnen Gutsträhnen in diesem Entleerungsraum - je nach der Gutzulauföffnung, durch die das Gut in den Entleerungsraum gelangt - ganz unterschiedlich ist. Besonders bei Schüttgut, das im unteren Bereich des Silos zur Entmischung neigt, ist daher die Homogenität des aus dem Silo abgezogenen Gutes vielfach ungenügend.A separate mixing room from the storage room is not provided in this known silo. An additional mixing effect cannot occur in the emptying room either, especially since the time of the individual strands of material in this emptying room - depending on the opening of the goods through which the goods enter the emptying room - is very different. In the case of bulk goods in particular, which tends to separate in the lower area of the silo, the homogeneity of the goods removed from the silo is often insufficient.

Der Erfindung liegt daher die Aufgabe zugrunde, unter Vermeidung dieser Mängel der bekannten Ausführungen ein Vorrats- und Mischsilo der eingangs gennannten Art so auszubilden, daß sich bei zugleich günstiger, kompakter Bauweise eine wesentlich verbesserte Misch- und Homogenisierwirkung ergibt.The invention is therefore based on the object, while avoiding these shortcomings of the known designs, to form a storage and mixing silo of the type mentioned in such a way that, while at the same time being more economical and compact, there is a substantially improved mixing and homogenizing effect.

Diese Aufgabe wird erfindungsgemäß durch folgende Merkmale gelöst :

  • a) Der zugleich als Mischraum dienende Entleerungsraum ist als Ringkammer ausgebildet, wobei entweder eine Gutzulauföffnung der Gutauslauföffnung diametral gegenüberliegt oder wobei zwei Gutzulauföffnungen unmittelbar neben der Trennwand zu einem der Gutauslauföffnungen diametral gegenüberliegenden Bedienungsraum vorgesehen sind ;
  • b) die radiale Breite der Ringkammer liegt zwischen dem 0,25-fachen und dem 0,37-fachen Wert des Silodurchmessers ;
  • c) die innere und äußere Begrenzungswand der Ringkammer verlaufen zumindest in ihrem unteren Bereich vertikal über eine Höche, die zwischen dem 0,7-fachen und dem 1,4-fachen Wert der radialen Breite der Ringkammer liegt ;
  • d) die zwischen der Gutzulauföffnung und der Gutauslauföffnung befindlichen Zonen der Ringkammer sind unabhängig voneinander belüftbar.
This object is achieved according to the invention by the following features:
  • a) The emptying space, which also serves as a mixing space, is designed as an annular chamber, with either a product inlet opening being diametrically opposite the product outlet opening or two product inlet openings being provided directly next to the partition wall to one of the product outlet openings diametrically opposite;
  • b) the radial width of the annular chamber is between 0.25 times and 0.37 times the value of the silo diameter;
  • c) the inner and outer boundary wall of the annular chamber extend at least in its lower region vertically over a height which is between 0.7 times and 1.4 times the radial width of the annular chamber;
  • d) the zones of the annular chamber located between the material inlet opening and the material outlet opening can be ventilated independently of one another.

Bei dem erfindungsgemäßen Silo erfüllt der im unteren Bereich des Silokörpers vorgesehene Entleerungsraum durch seine Ausbildung als Ringkammer mit gegeneinander versetzter Gutzulauf- und Gutauslauföffnung sowie mit unabhängiger Belüftung der einzelnen Zonen der Ringkammer zugleich die Funktion eines Mischraumes. Für die in diesem Mischraum erzielte gute Misch- und Homogenisierwirkung ist von wesentlicher Bedeutung, daß alle Schüttgutteilchen innerhalb dieser Ringkammer eine etwa gleich lange Mischstrecke auf dem Weg von der Gutzulauföffnung bis zur Gutauslauföffnung zurücklegen müssen. Hierbei passiert das zu mischende Schüttgut innerhalb der Ringkammer die einzelnen, unabhängig voneinander belüftbaren Zonen und erfährt dadurch eine gute Homogenisierung.In the case of the silo according to the invention, the emptying space provided in the lower region of the silo body also fulfills the function of a mixing space due to its design as an annular chamber with a mutually offset product inlet and product outlet opening and with independent ventilation of the individual zones of the annular chamber. For the good mixing and homogenizing effect achieved in this mixing space, it is essential that all bulk material particles within this annular chamber have to cover an approximately equally long mixing distance on the way from the material inlet opening to the material outlet opening. Here, the bulk material to be mixed passes through the individual zones that can be ventilated independently of one another within the annular chamber, and is thus well homogenized.

Da ein Teil des in die Ringkammer eingeführten Gutes in der einen Umfangsrichtung und der andere Teil des Gutes in der anderen Umfangsrichtung zur Gutauslauföffnung gelangt und sich die beiden Teilströme dort wieder mischen, ergibt sich eine zusätzliche Verbesserung der Homogenisierwirkung.Since part of the material introduced into the annular chamber reaches the material outlet opening in the one circumferential direction and the other part of the material in the other circumferential direction and the two partial flows mix again there is an additional improvement in the homogenizing effect.

Als besonders wesentlich für den in der Ringkammer erzielten Mischeffekt haben sich bei den der Erfindung zugrundeliegenden Versuchen die oben erwähnten Werte der radialen Breite der Ringkammer und der Höhe des vertikalen Verlaufes der inneren und äußeren Begrenzungswand der Ringkammer erwiesen. Bei einer im Querschnitt derart dimensionierten Ringkammer führt das Schüttgut bei seiner Bewegung von der Gutzulauföffnung zur Gutauslauföffnung auch bei einer mäßigen, energiesparenden Belüftung der einzelnen Zonen der Ringkammer eine intensive Umwälzbewegung aus, die selbst bei leicht zur Entmischung neigenden Materialien eine gute Homogenisierung gewährleistet. Zweckmäßige Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche und werden im Zusammenhang mit der Beschreibung zweier in der Zeichnung veranschaulichter Ausführungsbeispiele näher erläutert.The above-mentioned values of the radial width of the annular chamber and the height of the vertical profile of the inner and outer boundary wall of the annular chamber have proven to be particularly important for the mixing effect achieved in the annular chamber in the experiments on which the invention is based. In the case of an annular chamber dimensioned in cross section in this way, the bulk material also leads during its movement from the material inlet opening to the material outlet opening with moderate, energy-saving ventilation of the individual zones of the annular chamber, an intensive circulating movement ensures a good homogenization even with materials that tend to separate. Appropriate embodiments of the invention are the subject of the dependent claims and are explained in connection with the description of two exemplary embodiments illustrated in the drawing.

In der Zeichnung zeigen

  • Figur 1 eine Vertikal-Schnittansicht durch den unteren Teil eines Silokörpers des Vorrats-und Mischsilos ;
  • Figur 2 eine Querschnittsansicht entlang der Linie 11-11 in Fig. 1 ;
  • Figur 3 eine ähnliche Vertikal-Schnittansicht (lediglich durch die linke Hälfte) wie Fig. 1 , jedoch bei einem zweiten Ausführungsbeispiel ;
  • Figur4 eine Querschnittsansicht durch dieses zweite Ausführungsbeispiel gemäß der Linie IV-IV in Fig. 3.
Show in the drawing
  • FIG. 1 shows a vertical sectional view through the lower part of a silo body of the storage and mixing silo;
  • Figure 2 is a cross-sectional view taken along line 11-11 in Fig. 1;
  • Figure 3 is a similar vertical sectional view (only through the left half) as Figure 1, but in a second embodiment.
  • Figure 4 is a cross-sectional view through this second embodiment along the line IV-IV in Fig. 3rd

Anhand der Figuren 1 und 2 sei zunächst ein erstes Ausführungsbeispiel des Vorrats- und Mischsilos beschrieben, der insbesondere für feinkörniges und pulverförmiges Schüttgut bestimmt ist. Der Silo enthält in einem gemeinsamen Silokörper 1 einen den weitaus größten Rauminhalt einnehmenden Vorratsraum 2 sowie in seinem unteren Bereich einen gegenüber dem Vorratsraum 2 kleineren Mischraum 3, der durch eine Ringkammer 4 gebildet ist. Im Beispiel der Figuren 1 und 2 bildet die Ringkammer 4 einen in Umfangsrichtung durchgehenden Mischraum 3 (vgl. Fig. 2).A first exemplary embodiment of the storage and mixing silo is first described with reference to FIGS. 1 and 2, which is intended in particular for fine-grained and powdery bulk material. In a common silo body 1, the silo contains a storage space 2, which by far takes up the largest volume, and in its lower area a mixing space 3, which is smaller than the storage space 2 and which is formed by an annular chamber 4. In the example of FIGS. 1 and 2, the annular chamber 4 forms a mixing chamber 3 which is continuous in the circumferential direction (cf. FIG. 2).

Die Ringkammer 4 wird durch eine äußere Begrenzungswand 5, bei der es sich gleichzeitig um die Außenwand des Silokörpers 1 handeln kann, ferner durch eine innere Begrenzungswand 6 sowie durch einen Boden 7 und eine schräge Deckwand 8 gebildet, bei der es sich.um den nach innen geneigten, trichterförmigen Boden des Vorratsraumes 2 handelt und die daher vom oberen Bereich der äußeren Begrenzungswand 5 schräg nach innen zur vertikal ausgerichteten inneren Begrenzungswand 6 verläuft. Somit schließt sich die innere Begrenzungswand 6 an den unteren Rand des trichterförmigen Bodens (Deckwand 8) des Vorratsraumes 2 an. Diese innere Begrenzungswand 6 wird daher von einem bis zum zentralen belüftbaren Bodenteil 9 des Vorratsraumes 2 reichenden, zylindrischen Wandteil dieses Vorratsraumes gebildet, wobei sich hierdurch ein zentraler tiefer Senkraum 2a im unteren Bereich des Vorratsraumes 2 ergibt.The annular chamber 4 is formed by an outer boundary wall 5, which can simultaneously be the outer wall of the silo body 1, further by an inner boundary wall 6 as well as by a bottom 7 and an inclined top wall 8, which is the internally inclined, funnel-shaped bottom of the storage space 2 and which therefore runs obliquely inwards from the upper region of the outer boundary wall 5 to the vertically oriented inner boundary wall 6. The inner boundary wall 6 thus adjoins the lower edge of the funnel-shaped bottom (top wall 8) of the storage space 2. This inner boundary wall 6 is therefore formed by a cylindrical wall part of this storage space that extends as far as the central, ventilated base part 9 of the storage space 2, this resulting in a central, deep lowering space 2a in the lower region of the storage space 2.

In der inneren Begrenzungswand 6 der Ringkammer 4 ist eine Gutzulauföffnung 10 im Bereich des Ringkammerbodens 7 vorgesehen. Dieser Gutzulauföffnung 10 zum Mischraum 3 ist ein Sammelförderer 11 zugeordnet, der im zentralen Bodenteil 9 des Vorratsraumes 2 angeordnet ist, und zwar vorzugsweise so, daß er diesen zentralen Bodenteil 9 diametral durchquert. Bei dem Sammelförderer 11 kann es sich um eine pneumatische Förderrinne handeln, der zu beiden Seiten übliche pneumatische Auflockerungseinheiten 12 zugeordnet sind, die ebenfalls im zentralen Bodenteil 9 eingearbeitet sind.In the inner boundary wall 6 of the annular chamber 4, a product inlet opening 10 is provided in the area of the annular chamber base 7. This material inlet opening 10 to the mixing chamber 3 is assigned a collecting conveyor 11, which is arranged in the central base part 9 of the storage space 2, preferably in such a way that it traverses this central base part 9 diametrically. The collecting conveyor 11 can be a pneumatic conveyor trough, which is associated with conventional pneumatic loosening units 12 on both sides, which are also incorporated in the central base part 9.

Auf der der Gutzulauföffnung 10 diametral gegenüberliegenden Seite der Ringkammer 4 befindet sich in deren äußerer Begrenzungswand 5 wenigstens eine Gutauslauföffnung 13. Dieser Gutauslauföfinung bzw. diesen Gutauslauföffnungen 13 können in üblicher Weise nicht näher veranschaulichte Gutauslauforgane zur Absperrung und Dosierung zugeordnet sein. Von Bedeutung ist jedoch, daß diese Gutauslauföffnung 13 der äußeren Begrenzungswand 5 in einem höheren Niveau liegt als die Gutzulauföffnung 10 am Kammerboden 7 in der inneren Begrenzungswand 6. Besonders zweckmäßig ist es, der Gutauslauföffnung 13 eine sich radial zwischen der inneren und der äußeren Ringkammer-Begrenzungswand 6 bzw. 5 erstreckende, zur äußeren Begrenzungswand 5 hin leicht geneigte Überlaufrinne 14 zuzuordnen. Diese Überlaufrinne 14 kann in form einer einfachen schrägen Auslaufschurre oder aber auch in Form einer pneumatischen Förderrinne oder in Form eines anderen geeigneten Förderorgans ausgebildet sein. Auf jeden Fall ist die Überlaufrinne 14 nach oben hin offen, und die oberen Überlaufkanten 15 der Rinne liegen etwa horizontal und gleich hoch, so daß hierdurch der Gutspiegel S innerhalb des Mischraumes 3 bestimmt wird.On the side of the annular chamber 4 diametrically opposite the material inlet opening 10 there is at least one product outlet opening 13 in its outer boundary wall 5. This product outlet opening or these product outlet openings 13 can be assigned in the customary manner non-illustrated product outlet members for blocking and metering. It is important, however, that this material outlet opening 13 of the outer boundary wall 5 is at a higher level than the material inlet opening 10 on the chamber bottom 7 in the inner boundary wall 6. It is particularly expedient to provide the material outlet opening 13 with a radial distance between the inner and the outer annular chamber. Assign boundary wall 6 or 5 extending overflow channel 14, which is slightly inclined towards the outer boundary wall 5. This overflow channel 14 can be designed in the form of a simple inclined discharge chute or else in the form of a pneumatic conveyor channel or in the form of another suitable conveyor element. In any case, the overflow channel 14 is open at the top, and the upper overflow edges 15 of the channel are approximately horizontal and of the same height, so that the product level S within the mixing chamber 3 is determined thereby.

Damit die Ringraum-Mischkammer 3 im Bedarfsfalle aber auch vollkommen entleert werden kann, befindet sich zweckmäßig unterhalb der Gutauslauföffnung 13 in Höhe des Ringkammerbodens 7 zusätzlich noch eine verschließbare Resteenleerungs-Auslauföffnung 16 in der äußeren Ringkammer-Begrenzungswand 5. Dabei ist es weiterhin sinnvoll, wenn die Ringkammer 4 an ihrem Boden 7 von der Gutzulauföffnung 10 in Umfangsrichtung (und zwar in beiden Umfangshälften der Ringkammer 4) zur Resteentleerungs-Auslauföffnung 16 hin geneigt ist, wie es in Fig. angedeutet ist.So that the annular space mixing chamber 3 can also be completely emptied if necessary, there is also a closable residual emptying outlet opening 16 in the outer annular chamber boundary wall 5 below the product outlet opening 13 at the level of the annular chamber base 7. It is also useful if the annular chamber 4 on its bottom 7 is inclined in the circumferential direction (in both circumferential halves of the annular chamber 4) towards the residue discharge outlet opening 16, as is indicated in FIG.

Für eine gute Misch- und Homogenisierwirkung hat es sich als besonders günstig herausgestellt, wenn bestimmte bauliche Abmessungen der Ringkammer 4 eingehalten werden. Hierbei sollte die radiale Breite B der Ringkammer 4 zwischen dem 0,25-fachen und dem 0,37-fachen Wert, vorzugsweise zwischen dem 0,3- und 0,35-fachen Wert des Siloinnendurchmessers D liegen, während die innere und äussere Begrenzungswand 5 bzw. 6 der Ringkammer 4 zumindest in ihrem unteren Bereich vertikal über eine Höhe H verlaufen, die zwischen dem 0,7-fachen und dem 1,4-fachen Wert, vorzugsweise zwischen dem 1,0-fachen bis 1,2-fachen Wert der radialen Breite B der Ringkammer 4 liegt. Wenn der Ringkammerboden 7 wie im Beispiel der Fig. 1 in Richtung auf die Resteentleerungs-Auslauföffnung 16 geneigt verläuft, dann wird als vertikale Höhe H etwa die mittlere Höhe im Umfangsbereich zwischen Gutzulauföffnung 10 und Resteentleerungs-Auslauföffnung 16 gewertet.For a good mixing and homogenizing effect, it has turned out to be particularly favorable if certain structural dimensions of the annular chamber 4 are observed. Here, the radial width B of the annular chamber 4 should be between 0.25 times and 0.37 times the value, preferably between 0.3 and 0.35 times the value of the inner diameter of the silo D, while the inner and outer boundary wall 5 and 6 of the annular chamber 4, at least in their lower region, run vertically over a height H which is between 0.7 times and 1.4 times, preferably between 1.0 and 1.2 times Value of the radial width B of the annular chamber 4 is. If the annular chamber bottom 7, as in the example in FIG. 1, slopes towards the residue discharge outlet opening 16, then the vertical height H becomes approximately the average height in the circumferential area between the material inlet opening 10 and the residue discharge outlet barrel opening 16 scored.

Der Ringkammerboden 7 zwischen der Gutzuiauföffnung 10 und der Gutauslauföffnung 13 bzw. der Resteentleerungs-Auslauföffnung 16 ist in mehrere Teilbelüftungszonen 17, 18, 19, 20, 21, 18', 19', 20', 21' in sinnvoller Weise unterteilt, wie es in Fig.2 veranschaulicht ist. Jede dieser Teilbelüftungszonen 17 bis 21 bzw. 18' bis 21' können unabhängig voneinander pneumatisch belüftet werden, wozu im Kammerboden 7 etliche poröse Belüftungseinheiten angeordnet sind und von einer gegenüber dem Belüftungsboden des Vorratsraumes 2 gesondert steuerbaren Belüftungseinrichtung beaufschlagt werden. Von diesen Teilbelüftungszonen sind die der Gutzulauföffnung 10 zugeordnete Teilbelüftungszone 17 sowie die der Gutauslauföffnung 13 direkt zugeordnete Teilbelüftungszone 21 während des Betriebes stets stark belüftet, und zwar vorzugsweise bei stets gleich starker Beaufschlagung. Zwischen diesen beiden stets gleich stark beaufschlagten Teilbelüftungszonen 17 und 20 liegen in der einen Umfangshälfte bzw. Umfangsrichtung der Ringkammer 4 noch drei weitere Teilbelüftungszonen 18, 19, 20, während in der anderen Umfangsrichtung bzw. Umfangshälfte der Ringkammer 4 ebenfalls noch - symmetrisch zu den zuvor genannten Zonen 18, 19, 20 - Teilbelüftungszonen 18', 19', 20' liegen. Diese zwischen den stets stark belüfteten Teilbelüftungszonen 17 und 21 liegenden Teilbelüftungszonen 18, 19, 20 bzw. 18', 19', 20' werden dann während des Betriebes in der Reihenfolge vom Bereich der Gutzutauföffnung 10 - in ihrer jeweiligen Umfangsrichtung - zur Gutauslauföffnung 13 jeweils nur periodisch abwechselnd mit Luft beaufschlagt, so daß auf den beiden gebildeten Mischstrecken (in beiden Umfangshälften der Ringkammer 4) gewissermaßen eine brodelnde, äußerst intensive Mischbewegung erzeugt werden kann, wie es eingangs bereits erläutert worden ist.The annular chamber bottom 7 between the product inlet opening 10 and the product outlet opening 13 or the residue emptying outlet opening 16 is divided into several partial ventilation zones 17, 18, 19, 20, 21, 18 ', 19', 20 ', 21' in a sensible manner, as is is illustrated in Fig.2. Each of these partial ventilation zones 17 to 21 or 18 'to 21' can be pneumatically ventilated independently of one another, for which purpose a number of porous ventilation units are arranged in the chamber floor 7 and are acted upon by a ventilation device which can be controlled separately with respect to the ventilation floor of the storage room 2. Of these partial ventilation zones, the partial ventilation zone 17 assigned to the material inlet opening 10 and the partial ventilation zone 21 directly assigned to the product outlet opening 13 are always heavily ventilated during operation, preferably with the same amount of pressure being applied. Between these two partial ventilation zones 17 and 20, which are always acted upon equally strongly, there are three further partial ventilation zones 18, 19, 20 in one circumferential half or circumferential direction of the annular chamber 4, while also in the other circumferential direction or circumferential half of the annular chamber 4 - symmetrically to those previously zones 18, 19, 20 - partial ventilation zones 18 ', 19', 20 '. These partial ventilation zones 18, 19, 20 and 18 ', 19', 20 ', which are always strongly ventilated partial ventilation zones 17 and 21, are then during operation in the order from the area of the goods opening 10 - in their respective circumferential direction - to the material outlet opening 13 in each case only periodically alternately pressurized with air, so that a bubbling, extremely intensive mixing movement can be generated to a certain extent on the two mixing sections formed (in both circumferential halves of the annular chamber 4), as has already been explained at the beginning.

Zur baulichen Gestaltung und Funktion der Ringkammer 4 sei noch gesagt, daß der obere Teil der Ringkammer 4 gewissermaßen eine Art Entspannungsraum bildet und daß in einem Umfangsbereich der Ringkammer 4 in diesen oberen Entspannungsraum ein Entlüftungsrohr 22 ausmündet, das beispielsweise mit einer Filtereinrichtung oder auch nur mit dem oberen Teil des Vorratsraumes in Verbindung Stehen kann.Regarding the structural design and function of the annular chamber 4, it should also be said that the upper part of the annular chamber 4 forms a kind of relaxation space and that in a peripheral region of the annular chamber 4 a vent pipe 22 opens out into this upper relaxation space, which, for example, has a filter device or also only can be connected to the upper part of the storage room.

Ein zweites Ausführungsbeispiel des Vorrats-und Mischsilos ist in den Figuren 3 und 4 veranschaulicht, wobei Fig. 3 im Vergleich zur Fig. des ersten Beispieles lediglich die linke Hälfte des Silokörpers 31 zeigt, während die nicht dargestellte rechte Hälfte in genau der gleichen Weise ausgeführt sein kann, wie es anhand der Fig. 1 erläutert worden ist.A second exemplary embodiment of the storage and mixing silo is illustrated in FIGS. 3 and 4, with FIG. 3 only showing the left half of the silo body 31 in comparison to FIG. 1, while the right half, not shown, is carried out in exactly the same way can be, as has been explained with reference to FIG. 1.

Der Silokörper 31 enthält auch in diesem Falle einen Vorratsraum 32 und einen gegenüber dem Vorratsraum 32 kleineren Mischraum 33, der durch eine Ringkammer 34 gebildet ist.In this case too, the silo body 31 contains a storage space 32 and a mixing space 33 which is smaller than the storage space 32 and which is formed by an annular chamber 34.

Die Ringkammer 34 ist in ihrem äußeren Aufbau zunächst in gleicher Weise gestaltet wie die Ringkammer 4 im Beispiel der Figuren 1 und 2, das heißt sie enthält eine äußere Begrenzungswand 35, eine innere Begrenzungswand 36, einen Kammerboden 37 und eine vom oberen Bereich der äußeren Begrenzungswand 35 schräg nach unten-innen zur inneren Begrenzungswand 36 verlaufende Deckwand 38. Auch in diesem zweiten Ausführungsbeipiel sind die radiale Breite B und die Höhe H der zumindest in ihrem unteren Bereich vertikal verlaufenden Begrenzungswände 35, 36 in genau der gleichen Weise definiert, wie es zum Teil unter Bezugnahme auf den Siloinnendurchmesser D anhand der Figuren 1 und 2 erläutert worden ist.The outer structure of the annular chamber 34 is initially designed in the same way as the annular chamber 4 in the example of FIGS. 1 and 2, that is to say it contains an outer boundary wall 35, an inner boundary wall 36, a chamber floor 37 and one from the upper region of the outer boundary wall 35 obliquely downward-inward to the inner boundary wall 36 extending top wall 38. Also in this second exemplary embodiment, the radial width B and the height H of the boundary walls 35, 36 which run vertically at least in their lower region are defined in exactly the same way as for Part has been explained with reference to the silo inner diameter D with reference to Figures 1 and 2.

Der wesentliche Unterschied dieses zweiten Ausführungsbeispieles gegenüber dem der Figuren 1 und 2 liegt darin, daß die Ringkammer 34 in zwei Teil-Mischräume 33a, 33b unterteilt ist, die je eine eigene Gutzulauföffnung 40a, 40b in der inneren Begrenzungswand 36 besitzen. Die Zulauföffnung 40a, 40b zu jedem Teil-Mischraum 33a bzw. 33b steht wiederum mit einem im zentralen Bodenteil 39 des Vorratsraumes 32 angeordneten Sammelförderer 41a, 41b in Verbindung, bei dem es sich - wie Fig. 4 zeigt - um Abzweigungen eines Hauptsammelförderers 41 handeln kann.The main difference of this second exemplary embodiment compared to that of FIGS. 1 and 2 is that the annular chamber 34 is divided into two partial mixing spaces 33a, 33b, each of which has its own feed inlet opening 40a, 40b in the inner boundary wall 36. The inlet opening 40a, 40b to each partial mixing space 33a or 33b is in turn connected to a collecting conveyor 41a, 41b arranged in the central bottom part 39 of the storage space 32, which - as shown in FIG. 4 - is a branch of a main collecting conveyor 41 can.

Insbesondere in Fig.4 läßt sich deutlich erkennen, daß die Ringkammer 34 dieses Ausführungsbeispieles in ihrem der Auslauföffnung 43 diametral gegenüberliegenden Ringabschnitt einen begehbaren Bedienungsraum 45 aufweist, der über eine entsprechend große Öffnung 46 in der äußeren Begrenzungswand 35 von außen der zugänglich ist. Dieser Bedienungsraum 45 kann dabei noch für Armaturen und Gebläse ausgenutzt werden ; außerdem sind in den Trennwänden 47a, 47b verschließbare Zugangsöffnungen 48a bzw. 48b zu den Teil-Mischräumen 33a, 33b bzw. zu Armaturen in deren Bereichen vorgesehen. Die Gutzulauföffnung 40a, 40b jedes Mischraumes 33a bzw. 33b ist dabei zweckmäßig - wie Fig. 4 zeigt - unmittelbar neben der zugehörigen Trennwand 47a bzw. 47b des Bedienungsraumes 45 angeordnet. Die auch in diesem Falle gleichartig wie beim ersten Ausführungsbeispiel ausgebildete und angeordnete Überlaufrinne 44 ist zweckmäßigerweise zur gemeinsamen Aufnahme von Mischgut aus beiden Teil-Mischräumen 33a, 33b ausgeführt, so daß der Gutauslauf durch die Gutauslauföffnung 43 gemeinsam erfolgen kann. Es sei hier noch hinzugefügt, daß auch in diesem Ausführungsbeispiel die Gutzulauföffnung 40a, 40b jedes Teil-Mischraumes 33a bzw. 33b im Bereich des Kammerbodens 37 liegt, während die Gutauslauföffnung 43 auf entsprechend erhöhtem Niveau liegt und mit ihrer Überlaufrinne 44 den Gutspiegel, also die Höhe der Gutfüllung in den Teil-Mischräumen 33a, 33b bestimmt.In particular in FIG. 4 it can be clearly seen that the annular chamber 34 of this exemplary embodiment has in its ring section diametrically opposite the outlet opening 43 a walk-in operating space 45 which is accessible from the outside via a correspondingly large opening 46 in the outer boundary wall 35. This control room 45 can still be used for fittings and blowers; in addition, closable access openings 48a and 48b to the partial mixing spaces 33a, 33b and to fittings in their areas are provided in the partition walls 47a, 47b. The feed inlet opening 40a, 40b of each mixing space 33a or 33b is expediently arranged, as shown in FIG. 4, directly next to the associated partition wall 47a or 47b of the operating space 45. The overflow channel 44, which is also designed and arranged in this case in the same way as in the first exemplary embodiment, is expediently designed for the joint reception of mixed material from the two partial mixing spaces 33a, 33b, so that the material can be discharged through the material outlet opening 43 together. It should also be added that in this exemplary embodiment, the feed inlet opening 40a, 40b of each partial mixing space 33a or 33b is located in the region of the chamber floor 37, while the outlet opening 43 is at a correspondingly elevated level and with its overflow channel 44 the product level, i.e. the Height of the filling in the partial mixing rooms 33a, 33b determined.

Der Kammerboden 37 ist ebenfalls wieder in mehrere Teilbelüftungszonen unterteilt, und zwar enthält er im Bereich des Teil-Mischraumes 33a die Teilbelüftungszonen 49, 50, 51, 52 und im Bereich des Teil-Mischraumes 33b die etwa symmetrisch zu den erstgenannten Teilbelüftungszonen liegenden Teilbelüftungszonen 49', 50', 51' und 52', wie es in Fig. 4 veranschaulicht ist. Hierbei können während des Mischbetriebes dann in beiden Teil-Mischräumen 33a, 33b die der jeweiligen Gutzulauföffnung 40a bzw. 40b und der Gutauslauföffnung 43 jeweils direkt benachbarten Teilbelüftungszonen 49, 49' bzw. 52, 52' stets stark belüftet werden, während die in beiden Teil-Mischräumen 33a, 33b, also in beiden Umfangsrichtungen, jeweils dazwischenliegenden Teilbelüftungszonen 50, 51 bzw. 50', 51' in der Reinhenfolge vom Bereich der Gutzulauföffnung zur Gutauslauföffnung jeweils nur periodisch abwechselnd belüftbar sind. Mit den beiden geschilderten Ausführungsformen des Vorrats- und Mischsilos lassen sich besonders gute Mischergebnisse in einem kontinuierlichen Mischbetrieb erzielen.The chamber floor 37 is also subdivided into several partial ventilation zones, namely it contains the partial ventilation zones 49, 50, 51, 52 in the area of the partial mixing room 33a and approximately in the area of the partial mixing room 33b Partial ventilation zones 49 ', 50', 51 'and 52' lying symmetrically to the first-mentioned partial ventilation zones, as illustrated in FIG. 4. During the mixing operation, the partial ventilation zones 49, 49 'and 52, 52', which are directly adjacent to the respective product inlet opening 40a or 40b and the product outlet opening 43, can then always be strongly ventilated in the two partial mixing rooms 33a, 33b, while those in both parts -Mixing spaces 33a, 33b, that is to say in both circumferential directions, intermediate ventilation zones 50, 51 and 50 ', 51' in each case can only be periodically alternately ventilated in the order from the area of the product inlet opening to the product outlet opening. With the two described embodiments of the storage and mixing silos, particularly good mixing results can be achieved in a continuous mixing operation.

Claims (16)

1. Storage and mixing silo for loose material containing in one common silo body (1) a storage chamber (2 ; 32) and a discharge chamber (4 ; 34) which is provided in the lower region of the silo body (1), is connected to the storage chamber (2) by means of a material inlet (10; 40a, 40b) provided in its inner boundary wall (6 ; 36) and has at least one material outlet (13 ; 43) in its outer boundary wall (5 ; 35), in which the storage chamber and the discharge chamber have arrangements for pneumatic base ventilation, and the material inlet (10 ; 40a, 40b) and the material outlet (13 ; 43) of the discharge chamber (4 ; 34) are arranged offset relative to one another in the peripheral direction of this chamber, characterised by the following features :
a) the discharge chamber, which also serves as a mixing chamber, is constructed as an annular chamber (4 ; 34) in which either the material inlet (10) lies diametrically opposite the material outlet (13) or two material inlets (40a, 40b) are provided immediately adjacent to the dividing walls (47a, 47b) of a control room (45) which is diametrically opposite the material inlets (43) ;
b) the radial width (B) of the annular chamber (4; 34) is between 0.25 and 0.37 times the diameter (D) of the silo ;
c) the inner and outer boundary walls (5, 6 ; 35, 36) of the annular chamber (4 ; 34) extend vertically at least in their lower region to a height (H) which is between 0.7 and 1.4 times the radial width (B) of the annular chamber ;
d) the zones (17 to 21, 18' to 20' ; 49 to 52, 49' to 52') of the annular chamber located between the material inlet (10 ; 40a, 40b) and the material outlet (13 ; 43) can be ventilated independently of each other.
2. Silo according to claim 1, characterized in that the radial width (B) of the annular chamber (4 ; 34) is between 0.3 and 0.35 times the diameter (D) of the silo.
3. Silo according to claim 1, characterised in that the vertical height (H) of the inner and outer boundary walls (5, 6 ; 35, 36) of the annular chamber (4 ; 34) is approximately equivalent to 1.0 to 1.2 times the radial width (B) of the annular chamber.
4. Silo according to claims 1 to 3, which the storage chamber has an inwardly inclined funnel-shaped base, characterised in that a cylindrical wall portion which forms the inner vertical boundary wall (6 ; 36) of the annular chamber (4 ; 34) and extends as far as the central ventilatable base part (9 ; 39) of the storage chamber is connected to the lower edge of the funnel-shaped base (8 ; 38).
5. Silo according to claim 1, characterised in that the material outlet (13 ; 43) in the outer boundary wall (5 ; 35) of the annular chamber (4 ; 34) is at a higher level than the material inlet (10 ; 40a, 40b) in the inner boundary wall (6 ; 36).
6. Silo according to claim 5, characterised in that an overflow duct (14; 44) which extends radially between the inner and the outer boundary walls (5, 6; 35, 36) of the annular chamber, is slightly inclined towards the outer boundary wall (5 ; 35) and opens upwards is associated with the material outlet (13; 43) and the upper overflow edges (15) determine the material level (S) within the mixing chamber.
7. Silo according to claim 5 and/or claim 6, characterised in that a closable residue outlet (16) is also provided below the material outlet (13) and level with the base (7) of the annular chamber in the outer boundary wall (5) of the annular chamber.
8. Silo according to claim 7, characterised in that the annular chamber (4 ; 34) is inclined from the material inlet (10 ; 40a, 40b) in both peripheral directions towards the residue outlet (16).
9. Silo according to at least one of the preceding claims, characterised in that of the base ventilation zones located between the material inlet (10 ; 40a, 40b) and the material outlet (13 ; 43) of the annular chamber the zones immediately adjacent to the material inlet and outlet (17, 21 ; 49, 49' ; 52, 52') can always be strongly ventilated and at least two partial ventilation zones (18-20, 18'-20' ; 50, 51, 50', 51') lie between them in both peripheral directions, and these partial ventilation zones can only be ventilated periodically in turn in a sequence from the region of the material inlet to the material outlet.
10. Silo according to at least one of the preceding claims, characterised in that the material inlet (10; 40a, 40b) to the mixing chamber (3 ; 33a, 33b) is connected to a collecting conveyor (11 ; 41, 41a, 41 b) arranged in the central base portion (9 ; 39) of the storage chamber (2 ; 32).
11. Silo according to at least one of claims 1 to 10, characterised in that the annular chamber (4) forms a mixing chamber (3) which is continuous in the peripheral direction.
12. Silo according to at least one of claims 1 to 10, characterised in that the annular chamber (34) has two mixing chamber sections (33a, 33b) with their own material inlets (40a, 40b).
13. Silo according to claim 12, characterised in that a control room (45) which is accessible from the outside is provided in the annular section of the annular chamber diametrically opposite the material inlet (43) and a mixing chamber section (33a, 33b) is connected to the said control room in each of the two peripheral directions, the material inlet (40a, 40b) of each mixing chamber section being arranged immediately adjacent to the dividing wall (47a, 47b) of the control room.
14. Silo according to claims 5, 6, 7, 11 and 12, characterised in that the overflow duct (44) associated with the material outlet (43) is constructed so as to be common to both mixing chamber sections (33a, 33b).
15. Silo according to at least one of the preceding claims, characterised in that a ventilation arrangement for the partial ventilation zones which can be controlled separately from the ventilating base of the storage chamber (2 ; 32) is associated with the base (7; 37) of the annular chamber (4; 34).
16. Silo according to one of the preceding claims, characterised by a continuous mixing operation.
EP80107558A 1979-12-11 1980-12-03 Storage and mixing silo for bulk material Expired EP0030362B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2949791 1979-12-11
DE19792949791 DE2949791A1 (en) 1979-12-11 1979-12-11 STORAGE AND MIXING SILO FOR SCHUETTGUT

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EP0030362A1 EP0030362A1 (en) 1981-06-17
EP0030362B1 true EP0030362B1 (en) 1982-11-24

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EP (1) EP0030362B1 (en)
BR (1) BR8008076A (en)
DE (2) DE2949791A1 (en)
ES (1) ES497597A0 (en)
ZA (1) ZA807435B (en)

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DE3102270A1 (en) * 1981-01-24 1982-09-23 Claudius Peters Industrieanlagen GmbH, 2000 Hamburg "STORAGE AND / OR MIXED SILO"
DE3143387A1 (en) * 1981-11-02 1983-05-11 Krupp Polysius Ag, 4720 Beckum METHOD FOR OPERATING A CONTINUOUS MIXING SILO
DE3224196A1 (en) * 1982-06-29 1983-12-29 Krupp Polysius Ag, 4720 Beckum METHOD FOR MIXING FINE PRODUCTS
DE3245542A1 (en) * 1982-12-09 1984-06-14 Claudius Peters Ag, 2000 Hamburg MIXING SILO
DE3743637A1 (en) * 1987-12-22 1989-07-06 Krupp Polysius Ag SILO FOR SCHUETTGUT
CN101892384B (en) * 2010-07-15 2011-09-21 广西有色金属集团汇元锰业有限公司 Method for producing mercury-free alkaline manganese electrolytic manganese dioxide
CN108543442B (en) * 2018-04-20 2021-05-14 佛山市西泰陶瓷科技有限公司 Ceramic glaze making device
CN108421466B (en) * 2018-04-20 2021-03-09 醴陵市利果陶瓷贸易有限公司 Ceramic glaze making process

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DE2335525A1 (en) * 1973-07-12 1975-01-30 Guenther Windelband Silo emptying installation - used for fine grained bulk materials with pneumatic conveyors distributed over silo floor
DE2336984C2 (en) * 1973-07-20 1984-11-08 Claudius Peters Ag, 2000 Hamburg Emptying device for a bulk material silo
DE7531503U (en) * 1975-10-04 1976-01-29 Claudius Peters Ag, 2000 Hamburg EMPTYING DEVICE ON FLAT-HED BULK BANKS
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DE2727499B2 (en) * 1977-06-18 1980-11-13 Claudius Peters Ag, 2000 Hamburg Mixing or homogenizing chamber in a silo

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ZA807435B (en) 1983-01-26
ES8201927A1 (en) 1982-01-16
DE3061165D1 (en) 1982-12-30
US4364665A (en) 1982-12-21
ES497597A0 (en) 1982-01-16
BR8008076A (en) 1981-06-30
EP0030362A1 (en) 1981-06-17

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