EP0123031B1 - Silo for powdery bulk goods - Google Patents

Silo for powdery bulk goods Download PDF

Info

Publication number
EP0123031B1
EP0123031B1 EP84101401A EP84101401A EP0123031B1 EP 0123031 B1 EP0123031 B1 EP 0123031B1 EP 84101401 A EP84101401 A EP 84101401A EP 84101401 A EP84101401 A EP 84101401A EP 0123031 B1 EP0123031 B1 EP 0123031B1
Authority
EP
European Patent Office
Prior art keywords
silo
discharge
discharge openings
chambers
base
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
Application number
EP84101401A
Other languages
German (de)
French (fr)
Other versions
EP0123031A3 (en
EP0123031A2 (en
Inventor
Norbert Dipl.-Ing. Ahrens
Otto Dipl.-Ing. Heinemann
Heinrich Dipl.-Ing. Klockenbusch
Wolfgang Dipl.-Ing. Kluger
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
Priority to AT84101401T priority Critical patent/ATE29016T1/en
Publication of EP0123031A2 publication Critical patent/EP0123031A2/en
Publication of EP0123031A3 publication Critical patent/EP0123031A3/en
Application granted granted Critical
Publication of EP0123031B1 publication Critical patent/EP0123031B1/en
Expired legal-status Critical Current

Links

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
    • 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 according to the preamble of claim 1.
  • the material discharge openings are arranged in the lower region of the central cone surface, the ring zone of the base surrounding the cone surface being sloping inwards in such a way that the material is in a roughly radial direction from the outside inwards flows to the good discharge openings. Due to the radial flow direction of the goods from the circumference of the silo to the middle of the silo, areas close to the center flow out preferentially, while the goods do not drain off in the vicinity of the circumference even if the silo bottom is emptied.
  • a silo according to the preamble of claim 1 is also known (FR-A-24 13 291), in which the discharge openings are located in the annular bottom surface and the regions of the ring zone adjacent to the discharge openings are inclined towards the discharge openings, so that the material flows approximately tangentially to the material discharge openings. Since the discharge openings are open at the top, the silo content is loaded on the goods currently in the discharge opening.
  • silo in which the material flows approximately tangentially to the material discharge openings is known from FR-A-24 14 455.
  • the discharge openings are open at the top, so that the entire silo content presses on the material flowing through the discharge openings.
  • the invention has for its object to provide a silo of the type mentioned in the preamble of claim 1 so that a uniform outflow of the material through the material discharge openings is guaranteed.
  • the silo for flour-like bulk material illustrated in FIGS. 1 to 3, only the lower area essential for understanding the invention is illustrated.
  • the silo has a round cross section with a cylindrical outer wall 1 and a silo bottom, the central region of which is formed by an approximate conical surface 2.
  • the tip 3 of this conical surface points upwards.
  • a number of discharge chambers 4, 4 ′, 4 ′′ are arranged in the area of the base of the conical surface 2, which are approximately radially aligned and evenly distributed over the circumference of the silo.
  • Each of these discharge chambers is covered on the top by an upper cover 5, outer periphery delimited by the outer wall 1 of the silo and laterally by two side walls 6, 7.
  • a material discharge opening 8 is provided, through which the material is discharged from the interior of the silo into the chamber 4.
  • the material discharge opening 8 extends in the radial direction from the central conical surface 2 to the cylindrical outer wall 1 of the silo (cf. FIG. 2).
  • Each discharge chamber 4, 4 ', 4 " is provided in the upper region with a vent connection 11 and in the lower region with a material discharge opening 12. Only indicated connection conveying channels 13 can connect to this material discharge opening 12, leading to a central outlet (with cellular wheel sluice or metering slide) ) lead: Instead, however, other connections of the material discharge openings 12 of the individual discharge chambers 4, 4 'etc. are possible.
  • a closable opening 16 is provided in the inner boundary wall of the discharge chambers 4, 4 ', 4 ", through which the discharge chamber in question can be accessed from the interior 15.
  • the outer wall of the discharge chamber 4, 4 ', 4 " is formed by an inclined surface 17 which prevents the material from flowing off Fume extraction opening 12 favors.
  • zones 9 of the silo bottom which are arranged in front of the discharge openings 8 and are inclined in the circumferential direction are also ventilated, as are the covers 5 provided on the top of the discharge chambers 4, 4 ', 4 ". It is understood that the zones 9 and the covers 5 are formed in one piece if desired can be.
  • each discharge chamber (eg 4) is provided with two material discharge openings 8a, 8b arranged in the upper region of the two side walls 6, 7.
  • Zones 9a, 9b inclined in the direction of flow of the goods each extend from a circumferential point between two adjacent discharge chambers (e.g. 4, 4 ') to the bottom edge of the facing product discharge openings (e.g. 8b, 8') a) of these two discharge chambers 4, 4 '.
  • the slides assigned to the discharge openings 8a, 8b can either be operated together or individually.
  • the material in the silo according to the invention flows in the tangential direction into the individual discharge chambers 4, 4 ', 4 ", either only from one side (FIG. 3) or from both sides (FIG. 4
  • the material discharge opening 12 in the lower region of the discharge chambers 4, 4 ', 4 " is covered by the upper cover 5 to relieve pressure.
  • the interior of the individual discharge chambers is vented via the vent connection 11. This prevents undesirably large amounts of loosening air with the material from reaching the downstream devices through the product discharge opening 12.
  • the tangential inlets to the individual discharge chambers can be easily closed from the interior 15 by the slide 14, for example in order to be able to carry out maintenance work in the outlet area.
  • the slides 14 are also closed for mixing or homogenization.
  • the goods are then ventilated zone by zone. Mixing takes place both in the circumferential direction and in the radial direction. It is not absolutely necessary to mix the material when it runs out of the silo.
  • the flour can be taken from the ventilated zone of the silo.
  • the silo can be emptied practically completely. If lumps form or the material solidifies in the outlet area, it is possible to poke through openings from the interior 15.
  • zone 9 of the silo bottom which is located in front of the discharge openings 8 and is inclined in the direction of flow, is followed in each case by a zone 19 of the discharge chamber 4, 4 ′, 4 ′′, which is likewise inclined in the direction of flow
  • the discharge chamber is given a kinked shape in this way, the material initially passing through the discharge openings 8 without any deflection, since in the selected embodiment the zone 19 has the same inclination as the zone 9.
  • the inclined zone 19 located in the discharge chamber is also suitably ventilated.
  • the material discharge openings 8a, 8b are provided in the lower region of the two side walls 6, 7 of approximately radially oriented discharge chambers 4, which are designed as mixing chambers provided with floor ventilation, the Side walls 6, 7 are arranged like a roof. A plurality of material discharge openings 8a, 8b arranged next to one another in the radial direction are provided in each side wall 6 or 7.
  • the discharge chambers 4 have a bottom 20a, 20b which is inclined towards the center line 21 (which runs in the radial direction) and which at the same time has a gradient in the radial direction and adjoins the zones 9a lying outside the discharge chambers 4 and inclined in the circumferential direction. 9b of the silo floor with approximately the same inclination and without a step.
  • a conveyor trough 22 runs along the center line 21 of the bottom of the discharge chamber 4.
  • the material likewise enters the discharge chamber 4 approximately tangentially, but in mutually opposite circumferential directions, through the material discharge openings 8a, 8b of the two side walls 6, 7 and experiences here through the collision of the material flows coming from opposite circumferential directions and through the deflection an intensive mixing and homogenization tangentially in the radial direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Storage Of Fruits Or Vegetables (AREA)
  • Noodles (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Cereal-Derived Products (AREA)

Abstract

A silo for loose material in powder form having a base provided with a central conical section projecting upwards to form an annular discharge zone having floor portions inclined in a direction leading to an opening in a discharge chamber and in such manner that the material flows approximately tangentially towards the material discharge openings.

Description

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

Bei einem bekannten Silo (FR-A-23 28 822) sind die Gutaustragsöffnungen im unteren Bereich der zentralen Konusfläche angeordnet, wobei die die Konusfläche umgebende Ringzone des Bodens derart nach innen abfallend abgeböscht ist, daß das Gut in etwa radialer Richtung von außen nach innen den Gutaustragsöffnungen zufließt. Bedingt durch die radiale Fließrichtung des Gutes vom Siloumfang zur Silomitte fließen mittennahe Zonen bevorzugt aus, während das Gut in Umfangsnähe selbst bei Abböschung des Silobodens in Umfangsnähe nicht einwandfrei abfließt.In a known silo (FR-A-23 28 822), the material discharge openings are arranged in the lower region of the central cone surface, the ring zone of the base surrounding the cone surface being sloping inwards in such a way that the material is in a roughly radial direction from the outside inwards flows to the good discharge openings. Due to the radial flow direction of the goods from the circumference of the silo to the middle of the silo, areas close to the center flow out preferentially, while the goods do not drain off in the vicinity of the circumference even if the silo bottom is emptied.

Es ist ferner ein Silo entsprechend dem Oberbegriff des Anspruches 1 bekannt (FR-A-24 13 291), bei dem sich die Gutaustragsöffnungen in der ringförmigen Bodenfläche befinden und die an die Gutaustragsöffnungen angrenzenden Bereiche der Ringzone zu den Gutaustragsöffnungen hin geneigt sind, so daß das Gut etwa tangential den Gutaustragsöffnungen zufließt. Da die Gutaustragsöffnungen nach oben hin offen sind, lastet der Siloinhalt auf dem gerade in der Gutaustragsöffnung befindlichen Gut.A silo according to the preamble of claim 1 is also known (FR-A-24 13 291), in which the discharge openings are located in the annular bottom surface and the regions of the ring zone adjacent to the discharge openings are inclined towards the discharge openings, so that the material flows approximately tangentially to the material discharge openings. Since the discharge openings are open at the top, the silo content is loaded on the goods currently in the discharge opening.

Ein weiteres Silo, bei dem das Gut etwa tangential den Gutaustragsöffnungen zuströmt, ist durch die FR-A-24 14 455 bekannt. Auch hier sind die Gutaustragsöffnungen nach oben hin offen, so daß der gesamte Siloinhalt auf das durch die Gutaustragsöffnungen strömende Gut drückt.Another silo in which the material flows approximately tangentially to the material discharge openings is known from FR-A-24 14 455. Here, too, the discharge openings are open at the top, so that the entire silo content presses on the material flowing through the discharge openings.

Der Erfindung liegt die Aufgabe zugrunde, ein Silo der im Oberbegriff des Anspruches 1 genannten Art so auszubilden, daß ein gleichmäßiges Ausfließen des Gutes durch die Gutaustragsöffnungen gewährleistet ist. Hierbei soll die Möglichkeit bestehen, gewünschtenfalls auf Dosier- oder Absperrorgane zu verzichten und trotzdem einen gleichmäßigen Gutaustrag zu gewährleisten.The invention has for its object to provide a silo of the type mentioned in the preamble of claim 1 so that a uniform outflow of the material through the material discharge openings is guaranteed. Here, there should be the possibility, if desired, of dispensing with dosing or shut-off devices and still ensuring a uniform crop discharge.

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruches 1 gelöst.This object is achieved by the characterizing features of claim 1.

Weitere Merkmale der Erfindung sind Gegenstand der Unteransprüche und werden in Verbindung mit der Beschreibung einiger in der Zeichnung veranschaulichter Ausführungsbeispiele näher erläutert.Further features of the invention are the subject of the dependent claims and are explained in more detail in connection with the description of some exemplary embodiments illustrated in the drawing.

In der Zeichnung zeigen

  • Figur 1 eine Teilaufsicht auf den Siloboden ;
  • Figur 2 einen Schnitt längs der Linie 11-11 der Fig. 1 ;
  • Figur 3 einen Schnitt längs der Linie 111-111 der Fig. 2 ;
  • Figur 4 einen Schnitt (entsprechend Fig. 3) durch ein zweites Ausführungsbeispiel der Erfindung ;
  • Figur 5 einen Schnitt (entsprechend Fig. 3) durch ein weiteres Ausführungsbeispiel der Erfindung ;
  • Figuren 6, 7 und 8 Schnitte durch ein weiteres Ausführungsbeispiel der Erfindung.
Show in the drawing
  • Figure 1 is a partial view of the silo bottom;
  • Figure 2 shows a section along the line 11-11 of Fig. 1;
  • 3 shows a section along the line 111-111 of FIG. 2;
  • Figure 4 shows a section (corresponding to Figure 3) through a second embodiment of the invention;
  • FIG. 5 shows a section (corresponding to FIG. 3) through a further exemplary embodiment of the invention;
  • Figures 6, 7 and 8 sections through a further embodiment of the invention.

Von dem in den Fig. 1 bis 3 veranschaulichten Silo für mehlförmiges Schüttgut ist lediglich der zum Verständnis der Erfindung wesentliche untere Bereich veranschaulicht. Das Silo besitzt einen runden Querschnitt mit einer zylindrischen Außenwand 1 und einem Siloboden, dessen zentraler Bereich durch eine angenäherte Konusfläche 2 gebildet wird. Die Spitze 3 dieser Konusfläche weist nach oben.Of the silo for flour-like bulk material illustrated in FIGS. 1 to 3, only the lower area essential for understanding the invention is illustrated. The silo has a round cross section with a cylindrical outer wall 1 and a silo bottom, the central region of which is formed by an approximate conical surface 2. The tip 3 of this conical surface points upwards.

Im Bereich der Basis der Konusfläche 2 sind eine Anzahl von Austragskammern 4, 4', 4"-angeordnet, die etwa radial ausgerichtet und gleichmäßig über den Umfang des Silos verteilt sind. Jede dieser Austragskammern wird an der Oberseite durch eine obere Abdeckung 5, am äußeren Umfang durch die Außenwand 1 des Silos und seitlich durch zwei Seitenwände 6, 7 begrenzt.A number of discharge chambers 4, 4 ′, 4 ″ are arranged in the area of the base of the conical surface 2, which are approximately radially aligned and evenly distributed over the circumference of the silo. Each of these discharge chambers is covered on the top by an upper cover 5, outer periphery delimited by the outer wall 1 of the silo and laterally by two side walls 6, 7.

Im oberen Bereich der einen Seitenwand 7 ist eine Gutaustragsöffnung 8 vorgesehen, durch die das Gut aus dem Innenraum des Silos in die Kammer 4 ausgetragen wird. Die Gutaustragsöffnung 8 erstreckt sich in radialer Richtung von der zentralen Konusfläche 2 bis zur zylindrischen Außenwand 1 des Silos (vgl. Fig. 2).In the upper area of the one side wall 7, a material discharge opening 8 is provided, through which the material is discharged from the interior of the silo into the chamber 4. The material discharge opening 8 extends in the radial direction from the central conical surface 2 to the cylindrical outer wall 1 of the silo (cf. FIG. 2).

Bei dem in den Fig. 1 bis 3 dargestellten Ausführungsbeispiel befinden sich in Umfangsrichtung des Silos vor den Gutaustragsöffnungen 8 in Fließrichtung des Gutes geneigte Zonen 9 des Silobodens, über die das Gut in Richtung der Pfeile 10 den Gutaustragsöffnungen 8 zufließt. Bei dem Ausführungsbeispiel der Fig. 1 bis 3 erstrecken sich die in Fließrichtung des Gutes geneigten Zonen 9 des Silobodens jeweils von der oberen Abdeckung 5 einer Austragskammer (z. B. 4) bis zum unteren Rand der Gutaustragsöffnung 8 der in Umfangsrichtung benachbarten Austragskammer (z. B. 4', vgl. Fig. 3).In the embodiment shown in FIGS. 1 to 3, in the circumferential direction of the silo, in front of the material discharge openings 8, there are inclined zones 9 of the silo base in the flow direction of the material, via which the material flows in the direction of the arrows 10 to the material discharge openings 8. In the embodiment of FIGS. 1 to 3, the zones 9 of the silo bottom which are inclined in the direction of flow of the goods each extend from the top cover 5 of a discharge chamber (for example 4) to the lower edge of the discharge opening 8 of the discharge chamber adjacent in the circumferential direction (for B. 4 ', see Fig. 3).

Jede Austragskammer 4, 4', 4" ist im oberen Bereich mit einem Entlüftungsanschluß 11 und im unteren Bereich mit einer Gutabzugsöffnung 12 versehen. An diese Gutabzugsöffnung 12 können sich beispielsweise nur angedeutete Verbindungsförderrinnen 13 anschließen, die zu einem zentralen Auslauf (mit Zellenradschleuse oder Dosierschieber) führen: Statt dessen sind jedoch auch andere Anschlüsse der Gutabzugsöffnungen 12 der einzelnen Austragskammern 4, 4' usw. möglich.Each discharge chamber 4, 4 ', 4 "is provided in the upper region with a vent connection 11 and in the lower region with a material discharge opening 12. Only indicated connection conveying channels 13 can connect to this material discharge opening 12, leading to a central outlet (with cellular wheel sluice or metering slide) ) lead: Instead, however, other connections of the material discharge openings 12 of the individual discharge chambers 4, 4 'etc. are possible.

Die in den Seitenwänden der Kammern 4, 4', 4" vorgesehenen Gutaustragsöffnungen 8 sind durch in etwa radialer Richtung verstellbare Schieber 14 verschließbar. Die Betätigung dieser Schieber 14 kann vom Innenraum 15 innerhalb der Konusfläche 2 erfolgen.The material discharge openings 8 provided in the side walls of the chambers 4, 4 ', 4 "can be closed by sliders 14 which can be adjusted in approximately radial direction. These slides 14 can be actuated from the interior 15 within the conical surface 2.

Weiterhin ist in der inneren Begrenzungswand der Austragskammern 4, 4', 4" eine verschließbare Öffnung 16 vorgesehen, durch die die betreffende Austragskammer von dem Innenraum 15 aus begehbar ist.Furthermore, a closable opening 16 is provided in the inner boundary wall of the discharge chambers 4, 4 ', 4 ", through which the discharge chamber in question can be accessed from the interior 15.

Im unteren Bereich wird die Außenwand der Austragskammer 4, 4', 4" durch eine Schrägfläche 17 gebildet, die das Abfließen des Gutes zur Gutabzugsöffnung 12 hin begünstigt.In the lower area, the outer wall of the discharge chamber 4, 4 ', 4 "is formed by an inclined surface 17 which prevents the material from flowing off Fume extraction opening 12 favors.

Die vor den Gutaustragsöffnungen 8 angeordneten, in Umfangsrichtung geneigten Zonen 9 des Silobodens sind ebenso belüftet wie die an der Oberseite der Austragskammern 4, 4', 4" vorgesehenen Abdeckungen 5. Es versteht sich, daß die Zonen 9 und die Abdeckungen 5 gewünschtenfalls einstückig ausgebildet werden können.The zones 9 of the silo bottom which are arranged in front of the discharge openings 8 and are inclined in the circumferential direction are also ventilated, as are the covers 5 provided on the top of the discharge chambers 4, 4 ', 4 ". It is understood that the zones 9 and the covers 5 are formed in one piece if desired can be.

Bei der in Fig. 4 dargestellten Variante ist jede Austragskammer (z. B. 4) mit zwei im oberen Bereich der beiden Seitenwände 6, 7 angeordneten Gutaustragsöffnungen 8a, 8b versehen. Die in Fließrichtung des Gutes geneigten Zonen 9a, 9b erstrecken sich jeweils von einer zwischen zwei benachbarten Austragskammern (z. B. 4, 4') liegenden Umfangsstelle dachartig abfallend bis zum unteren Rand der einander zugewandten Gutaustragsöffnungen (z. B. 8b, 8'a) dieser beiden Austragskammern 4, 4'. Die den Austragsöffnungen 8a, 8b zugeordneten Schieber können entweder gemeinsam oder einzeln betätigbar sein.In the variant shown in FIG. 4, each discharge chamber (eg 4) is provided with two material discharge openings 8a, 8b arranged in the upper region of the two side walls 6, 7. Zones 9a, 9b inclined in the direction of flow of the goods each extend from a circumferential point between two adjacent discharge chambers (e.g. 4, 4 ') to the bottom edge of the facing product discharge openings (e.g. 8b, 8') a) of these two discharge chambers 4, 4 '. The slides assigned to the discharge openings 8a, 8b can either be operated together or individually.

Wie aus der obigen Beschreibung hervorgeht, fließt das Gut bei dem erfindungsgemäßen Silo in tangentialer Richtung in die einzelnen Austragskammern 4, 4', 4" ein, und zwar entweder nur von einer Seite (Fig. 3) oder von beiden Seiten (Fig. 4). Die Gutabzugsöffnung 12 im unteren Bereich der Austragskammern 4, 4', 4" ist durch die obere Abdeckung 5 druckentlastend überdeckt. Das Innere der einzelnen Austragskammern ist über den Entlüftungsanschluß 11 entlüftet. Dadurch wird vermieden, daß unerwünscht große Mengen an Auflockerungsluft mit dem Gut durch die Gutabzugsöffnung 12 in die nachgeschalteten Einrichtungen gelangen.As can be seen from the above description, the material in the silo according to the invention flows in the tangential direction into the individual discharge chambers 4, 4 ', 4 ", either only from one side (FIG. 3) or from both sides (FIG. 4 The material discharge opening 12 in the lower region of the discharge chambers 4, 4 ', 4 "is covered by the upper cover 5 to relieve pressure. The interior of the individual discharge chambers is vented via the vent connection 11. This prevents undesirably large amounts of loosening air with the material from reaching the downstream devices through the product discharge opening 12.

Die tangentialen Zuläufe zu den einzelnen Austragskammern können vom Innenraum 15 aus leicht durch die Schieber 14 geschlossen werden, um beispielsweise Wartungsarbeiten im Auslaufbereich durchführen zu können.The tangential inlets to the individual discharge chambers can be easily closed from the interior 15 by the slide 14, for example in order to be able to carry out maintenance work in the outlet area.

Zum Mischen oder Homogenisieren werden die Schieber 14 gleichfalls geschlossen. Die Belüftung des Gutes erfolgt dann im Takt zonenweise. Eine Mischung erfolgt hierbei sowohl in Umfangsrichtung als auch in radialer Richtung. Eine Nachmischung beim Auslaufen des Gutes aus dem Silo ist nicht unbedingt erforderlich. Das Mehl kann der jeweils belüfteten Zone des Silos entnommen werden.The slides 14 are also closed for mixing or homogenization. The goods are then ventilated zone by zone. Mixing takes place both in the circumferential direction and in the radial direction. It is not absolutely necessary to mix the material when it runs out of the silo. The flour can be taken from the ventilated zone of the silo.

Dank der gewählten Form des Gutaustrages ist eine praktisch restfreie Entleerung des Silos möglich. Bei Klumpenbildung oder Verfestigung des Gutes im Auslaufbereich kann über Öffnungen vom Innenraum 15 aus gestochert werden.Thanks to the selected form of discharge, the silo can be emptied practically completely. If lumps form or the material solidifies in the outlet area, it is possible to poke through openings from the interior 15.

Bei dem in Fig. 5 dargestellten dritten Ausführungsbeispiel schließt sich an die vor den Gutaustragsöffnungen 8 befindliche, in Fließrichtung geneigte Zone 9 des Silobodens jeweils eine gleichfalls in Fließrichtung geneigte Zone 19 der an ihrer Oberseite abgedeckten Austragskammer 4, 4', 4" an. Die Austragskammer erhält auf diese Weise eine abgeknickte Form, wobei das Gut die Gutaustragsöffnungen 8 zunächst ohne jede Umlenkung durchsetzt, da bei dem gewählten Ausführungsbeispiel die Zone 19 dieselbe Neigung wie die Zone 9 besitzt. Zweckmäßig ist auch die in der Austragskammer befindliche geneigte Zone 19 belüftet.In the third exemplary embodiment shown in FIG. 5, zone 9 of the silo bottom, which is located in front of the discharge openings 8 and is inclined in the direction of flow, is followed in each case by a zone 19 of the discharge chamber 4, 4 ′, 4 ″, which is likewise inclined in the direction of flow The discharge chamber is given a kinked shape in this way, the material initially passing through the discharge openings 8 without any deflection, since in the selected embodiment the zone 19 has the same inclination as the zone 9. The inclined zone 19 located in the discharge chamber is also suitably ventilated.

Bei dem in den Fig. 6, 7 und 8 dargestellten weiteren Ausführungsbeispiel der Erfindung sind die Gutaustragsöffnungen 8a, 8b im unteren Bereich der beiden Seitenwände 6, 7 von etwa radial ausgerichteten Austragskammern 4 vorgesehen, die als mit Bodenbelüftung versehene Mischkammern ausgebildet sind, wobei die Seitenwände 6, 7 dachartig angeordnet sind. In jeder Seitenwand 6 bzw. 7 sind mehrere in radialer Richtung nebeneinander angeordnete Gutaustragsöffnungen 8a, 8b vorgesehen.In the further embodiment of the invention shown in FIGS. 6, 7 and 8, the material discharge openings 8a, 8b are provided in the lower region of the two side walls 6, 7 of approximately radially oriented discharge chambers 4, which are designed as mixing chambers provided with floor ventilation, the Side walls 6, 7 are arranged like a roof. A plurality of material discharge openings 8a, 8b arranged next to one another in the radial direction are provided in each side wall 6 or 7.

Die Austragskammern 4 weisen bei diesem Ausführungsbeispiel einen zur Mittellinie 21 (die in radialer Richtung verläuft) hin geneigten Boden 20a, 20b auf, der zugleich ein Gefälle in radialer Richtung besitzt und sich an die außerhalb der Austragskammern 4 liegenden, in Umfangsrichtung geneigten Zonen 9a, 9b des Silobodens mit etwa gleicher Neigung und ohne Stufe anschließt. Längs der Mittellinie 21 des Bodens der Austragskammer 4 verläuft eine Förderrinne 22.In this exemplary embodiment, the discharge chambers 4 have a bottom 20a, 20b which is inclined towards the center line 21 (which runs in the radial direction) and which at the same time has a gradient in the radial direction and adjoins the zones 9a lying outside the discharge chambers 4 and inclined in the circumferential direction. 9b of the silo floor with approximately the same inclination and without a step. A conveyor trough 22 runs along the center line 21 of the bottom of the discharge chamber 4.

Das Gut tritt bei diesem Ausführungsbeispiel gleichfalls etwa tangential, jedoch in einander entgegengesetzten Umfangsrichtungen, durch die Gutaustragsöffnungen 8a, 8b der beiden Seitenwände 6, 7 in die Austragskammer 4 ein und erfährt hier durch den Zusammenprall der aus entgegengesetzten Umfangsrichtungen kommenden Gutströme sowie durch die Umlenkung aus tangentialer in radialer Richtung eine intensive Vermischung und Homogenisierung.In this exemplary embodiment, the material likewise enters the discharge chamber 4 approximately tangentially, but in mutually opposite circumferential directions, through the material discharge openings 8a, 8b of the two side walls 6, 7 and experiences here through the collision of the material flows coming from opposite circumferential directions and through the deflection an intensive mixing and homogenization tangentially in the radial direction.

Claims (15)

1. Silo with a round cross-section for powdery bulk goods, comprising
a) a silo base the central region of which is formed by a conical surface (2) with the apex (3) pointing upwards,
b) a number of material discharge openings (8, 8a, 8b) which are arranged in the region of the base of the conical surface (2) and distributed symmetrically over the periphery, the zones (9, 9a, 9b) of the silo base located before the material discharge openings being inclined in the direction of flow of the material towards the material discharge opening and being arranged in the peripheral direction of the silo such that the material flows approximately tangentially towards the material discharge openings,
c) pneumatic means for supplying air to individual zones of the silo, characterised by the following features :
d) discharge chambers (4, 4', 4") which are aligned approximately radially and are covered at the top are provided in the region of the base of the conical surface (2),
e) the material discharge openings (8, 8a, 8b) are provided in the side walls (6, 7) of the discharge chambers (4, 4', 4").
2. Silo according claim 1, characterised in that the material discharge openings (8, 8a, 8b) are arranged in the upper region of the side walls (6, 7) of the discharge chambers (4, 4', 4").
3. Silo according claim 2, characterised in that each discharge chamber (4, 4', 4") is provided with a material discharge opening (8) and the zones (9) of the silo base which are inclined in the direction of flow of the material each extend from the top cover (5) of one discharge chamber (e. g. 4) to the lower edge of the discharge opening (8) of the discharge chamber (e. g. 4') which is adjacent thereto in the peripheral direction.
4. Silo according claim 2, characterised in that each discharge chamber (4, 4', 4") is provided with two material discharge openings (8a, 8b) arranged in the upper region of the two side walls (6, 7) and the zones (9a, 9b) of the silo base which are inclined in the direction of flow of the material each extend from a peripheral point lying between two adjacent discharge chambers, sloping downwards like a roof to the lower edge of the material discharge openings (e. g. 8b, 8'a) which face each other of these two discharge chambers (e. g. 4, 4').
5. Silo according claim 2, characterised in that the discharge chambers (4, 4', 4") are provided with an air vent connection (11) in the upper region and a material extraction opening (12) in the lower region.
6. Silo according claim 1, characterised in that the zones (9, 9a, 9b) of the siio base which are inclined in the peripheral direction and arranged before the material discharge openings (8, 8a, 8b) are supplied with air.
7. Silo according claim 2, characterised in that the covers (5) provided at the top of the discharge chambers (4, 4', 4") are supplied with air.
8. Silo according claim 2, characterised in that the material discharge openings (8, 8a, 8b) can be closed by gate valves (14) which are adjustable-in an approximately radial direction.
9. Silo according claim 2, characterised in that the discharge chambers (4, 4', 4") are accessible from the chamber (15) surrounded by the central conical surface (2) through a closable opening (16) provided in the radially inner dividing wall.
10. Silo according claim 1, characterised in that the material discharge openings (8, 8a, 8b) extend in a radial direction from the central conical surface (2) to the cylindrical outer wall (1) of the silo.
11. Silo according claim 1, characterised in that a zone (19), which is inclined in the direction of flow, of the discharge chamber (4, 4', 4") which is covered at the top is connected to each zone (9) of the silo base which is also inclined in the direction of flow and is located before the material discharge openings (8).
12. Silo according claim 1, characterised in that the material discharge openings (8a, 8b) are provided in the lower region of the two side walls (6, 7) of approximately radially aligned discharge chambers (4) which are constructed as mixing chambers with base ventilation, and the material passes approximately tangentially, but in opposing peripheral directions, through the material discharge openings of the two side walls and enters the discharge chambers.
13. Silo according claim 12, characterised in that a plurality of material discharge openings (8a, 8b) arranged adjacent to one another in the peripheral direction are provided in each side wall (6, 7).
14. Silo according claim 12, characterised in that the discharge chambers have a base (20a, 20b) which is inclined toward the radially directed central line (21) and which is at the same time inclined downwards in the radial direction and preferably provided with a conveyor channel (22) running along the central line (21).
EP84101401A 1983-04-20 1984-02-10 Silo for powdery bulk goods Expired EP0123031B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84101401T ATE29016T1 (en) 1983-04-20 1984-02-10 SILO FOR MEAL BULK.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3314329 1983-04-20
DE3314329A DE3314329A1 (en) 1983-04-20 1983-04-20 SILO FOR MULTIPLE SHEET MATERIAL

Publications (3)

Publication Number Publication Date
EP0123031A2 EP0123031A2 (en) 1984-10-31
EP0123031A3 EP0123031A3 (en) 1986-02-19
EP0123031B1 true EP0123031B1 (en) 1987-08-19

Family

ID=6196891

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84101401A Expired EP0123031B1 (en) 1983-04-20 1984-02-10 Silo for powdery bulk goods

Country Status (7)

Country Link
US (1) US4539782A (en)
EP (1) EP0123031B1 (en)
AT (1) ATE29016T1 (en)
BR (1) BR8401378A (en)
DE (2) DE3314329A1 (en)
ES (1) ES287802Y (en)
ZA (1) ZA841206B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020120211A1 (en) 2018-12-12 2020-06-18 Thyssenkrupp Industrial Solutions Ag Silo for bulk material
EP3917861B1 (en) * 2019-02-01 2023-08-23 thyssenkrupp Industrial Solutions AG Silo with removable ventilation element

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3512289C2 (en) * 1985-04-03 1994-02-10 Peters Ag Claudius Bulk silo with vented mixing or homogenizing chamber
DE3609244C2 (en) * 1986-03-19 1996-09-12 Peters Ag Claudius Mixing silo for bulk goods
DE3743637A1 (en) * 1987-12-22 1989-07-06 Krupp Polysius Ag SILO FOR SCHUETTGUT
US4989380A (en) * 1988-07-28 1991-02-05 Ibau Hamburg Ingenieurgeselllschaft Industriebau Mbh Silo for pulverulent and fine-grained bulk materials
DE3835516C1 (en) * 1988-10-19 1990-02-15 Ibau Hamburg Ingenieurgesellschaft Industriebau Mbh, 2000 Hamburg, De
DE3926798C2 (en) * 1989-08-14 1998-06-04 Krupp Polysius Ag Open-plan silo
WO2005059477A2 (en) * 2003-12-17 2005-06-30 Mova Pharmaceutical Corporation Hopper with flow controller/enhancer for controlling the gravitational flow of granular material
CN101874994B (en) * 2009-12-19 2012-08-29 上海博隆粉体工程有限公司 Powder homogenizer and powder aircurrent homogenizing device

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE890772C (en) * 1953-09-24 Polysius G. m.b.H., Neubeckum Silo for the storage of all kinds of goods, such as cement, raw material or the like
DE7523514U (en) * 1975-11-13 Polysius Ag Container bottom for the pneumatic discharge of fine material
DE1074850B (en) * 1960-02-04 Essen Dipl.-lng. Wilhelm SiIberkuhl Reinforced concrete coal silo
DE1008955B (en) * 1955-07-23 1957-05-23 Josef Albers Device for loosening up hay, straw or the like for agricultural purposes
DE1103247B (en) * 1959-02-28 1961-03-23 Miag Muehlenbau & Ind Gmbh Device for the pneumatic removal of dust from a silo cell
CH418978A (en) * 1964-08-11 1966-08-15 Buehler Ag Geb Silo cell
CH492621A (en) * 1969-12-11 1970-06-30 Alusuisse Emptying device on silos with a flat bottom
DE2336984C2 (en) * 1973-07-20 1984-11-08 Claudius Peters Ag, 2000 Hamburg Emptying device for a bulk material silo
DE2352455B2 (en) * 1973-10-19 1978-07-13 Portland-Zementwerke Heidelberg Ag, 6900 Heidelberg Large-capacity silo for flour-like bulk goods
JPS5246646A (en) * 1975-10-09 1977-04-13 Ohbayashigumi Ltd Device for a silo
DE2547667B2 (en) * 1975-10-24 1978-07-20 Portland-Zementwerke Heidelberg Ag, 6900 Heidelberg Silo, especially large-capacity silo for flour-like bulk goods
DE2724928C2 (en) * 1977-06-02 1983-07-07 Ibau Hamburg Ingenieurgesellschaft Industriebau Mbh, 2000 Hamburg Large-capacity silo for flour-like bulk goods
FR2413291A2 (en) * 1977-12-30 1979-07-27 Fives Cail Babcock Emptying system for silo - has extraction and channel passages in horizontal plane, with several fluidiser sections inclined to form annular extraction sectors
FR2414455A1 (en) * 1978-01-13 1979-08-10 Olle Jean Louis SILO ELEMENT FOR THE STORAGE OF GRANULAR PRODUCTS
SU838080A1 (en) * 1979-05-22 1981-06-15 Владимировский Политехническийинститут Loose material storage silo
AU535683B2 (en) * 1979-11-21 1984-03-29 Hitachi Limited Hopper discharge details
DE3007113B1 (en) * 1980-02-26 1981-06-04 Ibau Hamburg Ingenieurgesellschaft Industriebau Mbh, 2000 Hamburg Silo system for powdery bulk goods, especially cement powder
DE3010499C2 (en) * 1980-03-19 1983-03-03 Johannes Möller Hamburg GmbH & Co KG, 2000 Hamburg Large-capacity silo for the storage and homogenization of flour-like bulk materials

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020120211A1 (en) 2018-12-12 2020-06-18 Thyssenkrupp Industrial Solutions Ag Silo for bulk material
DE102018221547A1 (en) 2018-12-12 2020-06-18 Thyssenkrupp Ag Bulk silo
EP3917861B1 (en) * 2019-02-01 2023-08-23 thyssenkrupp Industrial Solutions AG Silo with removable ventilation element

Also Published As

Publication number Publication date
DE3465459D1 (en) 1987-09-24
ZA841206B (en) 1984-09-26
US4539782A (en) 1985-09-10
EP0123031A3 (en) 1986-02-19
ES287802U (en) 1986-05-16
ES287802Y (en) 1987-01-16
EP0123031A2 (en) 1984-10-31
ATE29016T1 (en) 1987-09-15
BR8401378A (en) 1985-02-26
DE3314329A1 (en) 1984-10-25

Similar Documents

Publication Publication Date Title
DE3723588C2 (en)
EP0123031B1 (en) Silo for powdery bulk goods
DE3010499C2 (en) Large-capacity silo for the storage and homogenization of flour-like bulk materials
DE3217314C2 (en)
DE2336984A1 (en) DEVICE FOR EMPTYING SILOS FOR BULK MATERIALS WITH A FLAT OR SLIGHTLY INCLINED BOTTOM
DE2703680B2 (en) Applicator for flowable, foaming reaction mass
EP0001422B1 (en) Apparatus for pneumatically discharging fine material from a container and method of operation therefor
DE2547667B2 (en) Silo, especially large-capacity silo for flour-like bulk goods
DE2352455B2 (en) Large-capacity silo for flour-like bulk goods
DE2724928C2 (en) Large-capacity silo for flour-like bulk goods
EP0030362B1 (en) Storage and mixing silo for bulk material
DE3022346C2 (en) Mixing silo for bulk goods
DE1299985B (en) Gravity mixer for powdery to grainy goods
EP0111294B1 (en) Mixing silo for the pneumatic homogenisation of granulated or powdery materials
DE3609244C2 (en) Mixing silo for bulk goods
DE1507901C3 (en) Apparatus for mixing flowable particulate solids
EP0168414B1 (en) Dispensing device for bulk material container
DE3933314A1 (en) Multichamber silo with central silo chamber - has surrounding peripheral chambers all resting on common base plate
EP0303864B1 (en) Silo for powdery and fine grained bulk goods
DE3624885A1 (en) EMPTYING DEVICE FOR A SCHUETTGUT-SILO
DE4224054C2 (en) Open-plan silo
DE7523514U (en) Container bottom for the pneumatic discharge of fine material
DE1963936C3 (en) Sinter cooler
DE2140239A1 (en) LARGE-SPACE SILO
DE4034616C2 (en) Device for mixing powdery or coarse-grained bulk materials

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE DE FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT BE DE FR GB IT

17P Request for examination filed

Effective date: 19860603

17Q First examination report despatched

Effective date: 19870128

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE FR GB IT

REF Corresponds to:

Ref document number: 29016

Country of ref document: AT

Date of ref document: 19870915

Kind code of ref document: T

ET Fr: translation filed
REF Corresponds to:

Ref document number: 3465459

Country of ref document: DE

Date of ref document: 19870924

ITF It: translation for a ep patent filed

Owner name: MODIANO & ASSOCIATI S.R.L.

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19950113

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19950116

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19950119

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19950126

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19950307

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19960210

Ref country code: AT

Effective date: 19960210

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19960228

BERE Be: lapsed

Owner name: KRUPP POLYSIUS A.G.

Effective date: 19960228

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19960210

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19961031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19961101

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST