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EP0031902B1 - Silo de mélange pneumatique - Google Patents

Silo de mélange pneumatique Download PDF

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Publication number
EP0031902B1
EP0031902B1 EP80107557A EP80107557A EP0031902B1 EP 0031902 B1 EP0031902 B1 EP 0031902B1 EP 80107557 A EP80107557 A EP 80107557A EP 80107557 A EP80107557 A EP 80107557A EP 0031902 B1 EP0031902 B1 EP 0031902B1
Authority
EP
European Patent Office
Prior art keywords
mixing
silo
chamber
conveyor
outlet
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
EP80107557A
Other languages
German (de)
English (en)
Other versions
EP0031902A1 (fr
Inventor
Wolfgang Kluger
Heinz Hüser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
Krupp Polysius AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Krupp Polysius AG filed Critical Krupp Polysius AG
Publication of EP0031902A1 publication Critical patent/EP0031902A1/fr
Application granted granted Critical
Publication of EP0031902B1 publication Critical patent/EP0031902B1/fr
Expired legal-status Critical Current

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Classifications

    • 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 pneumatic mixing silo, comprising a storage space provided with floor ventilation and at least one material inlet in the upper area and a mixing room which is arranged centrally in the lower area of the silo and is also provided with floor ventilation and which is connected to the storage area via material passage openings provided in its lower area and has at least one good outlet.
  • a mixing silo of the type mentioned above is known, for example, from the magazine “Aufrungstechnik", issue 1/1973, p. 8.
  • the mixing chamber is formed by a relatively small chamber, which is closed at the top by a conical cover provided with a ventilation pipe and the outlet of which is located in the region of the bottom of the chamber.
  • the residence time of the goods in this mixing chamber is relatively short; the mixing effect is accordingly not completely satisfactory in all cases. If the material fed to the mixing silo is very uneven and if the material is difficult to mix, it is generally necessary to premix the material in the storage room. Furthermore, since both the material inlet and the material outlet are provided in the lower region of the mixing chamber, there is a risk that strands of the material from the material inlet that are not sufficiently mixed get directly into the material outlet.
  • This disadvantage also has another known mixing silo (DE-A-2 657 597), in which the mixing room located centrally in the lower part of the storage room is connected to the storage room via material passage openings located in its lower area and on the one hand to a relaxation chamber forming the material outlet is connected via openings in the lower region of the mixing chamber for passage of material and, on the other hand, via openings near the ceiling of the mixing chamber for ventilation.
  • this known mixing silo that individual parts of the crop penetrate the mixing area too quickly and do not experience the required homogenization.
  • This disadvantage also affects another known mixing silo (DE-A-2 724 928), which contains a homogenization chamber in the lower area of the silo space at a distance below a conical hood, to which the material is fed via metering devices at about half the height of the homogenization chamber and from which it is drawn off either via a crop outlet also located at about half the height of the chamber below the inlet openings and just below the material level or via a further crop outlet provided as a bypass in the bottom region of the homogenization chamber.
  • DE-A-2 724 928 contains a homogenization chamber in the lower area of the silo space at a distance below a conical hood, to which the material is fed via metering devices at about half the height of the homogenization chamber and from which it is drawn off either via a crop outlet also located at about half the height of the chamber below the inlet openings and just below the material level or via a further crop outlet provided as a bypass in the bottom region of the homogenization chamber.
  • the invention is therefore based on the object, while avoiding these deficiencies, to design a mixing silo of the type mentioned in such a way that a substantial improvement in the mixing action is achieved and an excellent mixing action is achieved even when the material is inhomogeneous and / or difficult to mix.
  • the mixing space in the area of the silo ceiling has an additional feed inlet which serves for the direct addition of correction material.
  • the wall separating the mixing space from the storage space extends as a preferably cylindrical, load-bearing wall over the entire height of the silo from the silo floor to the silo ceiling. If the silo ceiling is supported in the middle in this way, the thickness of the ceiling can be kept considerably lower.
  • the height of the mixing space overflow can also be adjusted.
  • the residence time of the goods in the mixing room can be influenced within wide limits and thus the mixing effect can be optimally adapted to the respective application. In this way, larger fluctuations in the supply of goods to the storage room can also be easily accommodated.
  • the drawing shows this exemplary embodiment of the pneumatic mixing silo 1 in a largely schematic representation.
  • This mixing silo 1 can generally have a suitable polygonal cross-sectional shape or - as is preferred in the exemplary embodiment shown - an approximately circular cross-sectional shape.
  • the mixing silo 1 contains a storage space 2 with an annular cross section and a mixing space 3 arranged in the center thereof, which is connected in its lower area to the storage space 2 via through openings 4. Both the storage room 2 and the mixing room 3 are equipped on their floor with conventional devices 5 and 6 for floor ventilation.
  • the floor 7 of the mixing room 3 is preferably somewhat lower than the floor 8 of the storage room 2.
  • the mixing silo 1 can be provided with a single feed inlet 9 or also with a plurality of feed inlets, each feed inlet 9 being arranged in the silo ceiling 10 and wherein - at several good inlets - all good inlets are evenly distributed over the silo ceiling 10 so that each good inlet 9 opens into the storage space 2.
  • the wall 11 separating the mixing space 3 from the storage space 2 is expediently designed in the form of a cylindrical, load-bearing wall which extends over the entire height of the silo 1 from the silo floor (7, 8) to the silo ceiling 10. This results in a mixing space 3 which is in the form of a cylindrical silo cell arranged centrally in the storage space 2; the cylindrical wall 11 can simultaneously support the silo ceiling 10 in its central region.
  • the silo ceiling 10 also contains, in its area covering the mixing area 3, a further material inlet 12, via which correction material (arrow 13) can be entered directly into the mixing area 3.
  • the material outlet 14 of the mixing silo 1 is designed as an overflow of the mixing space 3.
  • the height of this mixing space overflow referred to below as the main outlet, can be designed to be adjustable, ie in adaptation to the required operating conditions.
  • the main outlet 14 is located at a height position corresponding to about 1/3 of the total height of the mixing silo 1, wherein said height position, however - as mentioned - may well be lower or higher.
  • the mixing chamber 3 also has an additional material outlet 15 in the region of its base 7, which is used for residual emptying and is referred to below as the remaining outlet.
  • a discharge conveyor is assigned to both the main outlet 14 and the remaining outlet 15.
  • These take-off conveyors can in principle be formed by any suitable horizontal conveyor, but it is advisable, particularly in the case of a pneumatic mixing silo, to provide pneumatic conveyor troughs 16 (for the main outlet 14) and 17 (for the remaining outlet 15) as the extraction conveyor.
  • pneumatic conveyor troughs 16, 17 can then be supplied in the same way as the floor ventilation devices 5, 6 from a common ventilation source.
  • the pneumatic conveying trough 16 of the main outlet 14 leads to a buffer container 18 which receives the goods before further conveying. So that the residual material to be discharged from the remaining outlet 15 or from its pneumatic conveying trough 17 can be conveyed together with the main material drawn off from the main outlet 14 or from its pneumatic conveying trough 16, it is advantageous in the exemplary embodiment described if the pneumatic conveying trough 17 of the remaining outlet 15 also includes the main outlet discharge conveyor 16 or with the downstream of this conveyor buffer tank 18 by a vertical conveyor, for. B. - as shown - is connected by an elevator 19. The material withdrawn from the mixing silo 1 can thus be withdrawn from a common point, namely the buffer container 18. The increased arrangement of this buffer container 18 favors the arrangement of fittings and other devices for a further conveying device, not shown.
  • the mixing silo 1 can have a common ventilation (cf. arrows 20) for the storage room 2 and the mixing room 3.
  • a common ventilation filter can be provided on the silo ceiling 10.

Landscapes

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

Claims (10)

1. Silo mélangeur pneumatique comprenant un volume de stockage (2) à ventilation par le fond (5) et à moins une arrivée de la matière (9) située dans sa partie haute, ainsi qu'un volume de mélange (3) disposé centralement au bas du silo (1) et équipé également d'une ventilation par le fond (6), ce volume de mélange (3) communiquant avec le volume de stockage (2) par des ouvertures de passage de la matière (4) qui sont situées dans sa partie basse et comportant au moins une sortie de la matière, silo caractérisé en ce que la sortie de la matière (4) est conformée en déversoir de trop-plein du volume de mélange (3).
2. Silo mélangeur selon la revendication 1, caractérisé en ce que la cloison (11) qui sépare le volume de mélange (3) du volume de stockage (2) consiste en une paroi porteuse, de préférence cylindrique, qui se prolonge sur la hauteur totale du silo (1), du fond (7, 8) au toit (10).
3. Silo mélangeur selon l'une des revendications 1 et 2, caractérisé en ce que le volume de mélange (3) comporte une arrivée auxiliaire (12) située au niveau du toit (10) et destinée à l'introduction directe de matière de correction.
4. Silo mélangeur selon la revendication 1, caractérisé en ce que le niveau de la sortie de la matière (14), qui est conformée en déversoir de trop-plein du volume de mélange, est réglable.
5. Silo mélangeur selon la revendication 1, caractérisé en ce que le volume de mélange (3) comporte à proximité du fond une sortie auxiliaire (15) servant à vider les restes.
6. Silo mélangeur selon la revendication 1, caractérisé en ce que le volume de stockage (2) et le volume de mélange (3) comportent une purge commune (20).
7. Silo mélangeur selon l'une quelconque des revendications 1 à 6, caractérisé en ce que chaque sortie de la matière (14, 15) est équipée d'un transporteur de décharge (16, 17).
8. Silo mélangeur selon la revendication 7, caractérisé en ce que le transporteur de décharge de la sortie (14) conformée en déversoir de trop-plein du volume de mélange est formé d'un transporteur horizontal, de préférence d'une cunette pneumatique de transport (16) qui mène à une enceinte intermédiaire (18).
9. Silo mélangeur selon la revendication 7, caractérisé en ce que le transporteur de décharge de la sortie (15) servant à vider les restes de la matière consiste en un transporteur horizontal, de préférence en une cunette pneumatique de transport (17).
10. Silo mélangeur selon l'une quelconque des revendications 7 à 9, caractérisé en ce que le transporteur (17) de décharge de la sortie (15) servant à vider les restes de la matière communique par un transporteur vertical (19) avec le transporteur (16) de décharge de la sortie (14) conformée en déversoir de trop-plein du volume de mélange ou avec l'enceinte intermédiaire (18) disposée en aval de cette dernière sortie.
EP80107557A 1980-01-21 1980-12-03 Silo de mélange pneumatique Expired EP0031902B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3002030 1980-01-21
DE19803002030 DE3002030A1 (de) 1980-01-21 1980-01-21 Pneumatisches mischsilo

Publications (2)

Publication Number Publication Date
EP0031902A1 EP0031902A1 (fr) 1981-07-15
EP0031902B1 true EP0031902B1 (fr) 1982-12-29

Family

ID=6092561

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80107557A Expired EP0031902B1 (fr) 1980-01-21 1980-12-03 Silo de mélange pneumatique

Country Status (7)

Country Link
US (1) US4398828A (fr)
EP (1) EP0031902B1 (fr)
BR (1) BR8100297A (fr)
CA (1) CA1166243A (fr)
DE (2) DE3002030A1 (fr)
ES (1) ES498429A0 (fr)
ZA (1) ZA814B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3219147A1 (de) * 1982-05-21 1983-11-24 Claudius Peters Ag, 2000 Hamburg Mischkammersilo fuer schuettgut
US4506985A (en) * 1983-05-20 1985-03-26 Claudius Peters Ag Mixing chamber silo for loose material
DE3342507A1 (de) * 1983-11-24 1985-06-05 Claudius Peters Ag, 2000 Hamburg Doppel-mischkammersilo
DE3516014A1 (de) * 1985-05-03 1986-11-06 Claudius Peters Ag, 2000 Hamburg Misch- und lagersilo
US4943163A (en) * 1989-09-22 1990-07-24 Dynamic Air Inc. Blender for pneumatically mixing batches of dry granular materials by tumbling
US5074670A (en) * 1990-05-11 1991-12-24 Fuller Company Blender with feed rate control

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7118135U (de) * 1971-09-09 Vosswerke Gmbh Vorrichtung zum Dosieren von schutt gutförmigen Lebensmitteln, insbesondere Nudeln oder dergleichen
FR1074419A (fr) * 1952-04-12 1954-10-05 Polysius Gmbh Dispositif pour le vidage et le transport de matière pulvérulente hors de réservoirs
DE1201770B (de) * 1961-08-09 1965-09-23 Andre Reimbert Entleerungsanordnung fuer Silos
CH412811A (de) * 1962-11-06 1966-05-15 Ruetschi Ag Pumpenbau K Verfahren zum Mischen und Einrichtung zur Durchführung des Verfahrens
SU566923A1 (ru) * 1970-04-06 1977-07-30 Центральный Научно-Исследовательский Экспериментальный И Проектный Институт По Сельскому Строительству "Цнииэпсельстрой" Силос дл хранени сыпучих материалов
BR7601656A (pt) * 1975-03-19 1976-09-14 Lesk Ing Buero Material aperfeicoado com resistencia a passagem,de preferencia alta,predeterminavel para gases ou liquidos,bem como sua aplicacao
DE2619993B2 (de) * 1976-05-06 1981-02-12 Claudius Peters Ag, 2000 Hamburg Verfahren zur Entnahme von Schüttgut aus einem bodenbelüfteten Silo sowie Entnahmevorrichtung zur Durchführung des Verfahrens
FR2374073A1 (fr) * 1976-12-18 1978-07-13 Peters Ag Claudius Silo a chambre de melange pour matieres en vrac
DE2657597C2 (de) * 1976-12-18 1982-02-04 Claudius Peters Ag, 2000 Hamburg Schüttgutsilo mit Homogenisierkammer
DE2657596C2 (de) * 1976-12-18 1982-08-26 Claudius Peters Ag, 2000 Hamburg Mischkammersilo für Schüttgut
JPS5835089B2 (ja) * 1977-04-14 1983-07-30 石川島播磨重工業株式会社 粉粒体の混合装置
DE2724928C2 (de) * 1977-06-02 1983-07-07 Ibau Hamburg Ingenieurgesellschaft Industriebau Mbh, 2000 Hamburg Großraumsilo für mehlförmiges Schüttgut

Also Published As

Publication number Publication date
EP0031902A1 (fr) 1981-07-15
US4398828A (en) 1983-08-16
DE3061522D1 (en) 1983-02-03
ES8200233A1 (es) 1981-11-01
ZA814B (en) 1982-02-24
ES498429A0 (es) 1981-11-01
BR8100297A (pt) 1981-08-04
CA1166243A (fr) 1984-04-24
DE3002030A1 (de) 1981-07-23

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