DE3101432A1 - Mechanically supported fluidised bed for caking or not readily fluidisable bulk materials - Google Patents
Mechanically supported fluidised bed for caking or not readily fluidisable bulk materialsInfo
- Publication number
- DE3101432A1 DE3101432A1 DE19813101432 DE3101432A DE3101432A1 DE 3101432 A1 DE3101432 A1 DE 3101432A1 DE 19813101432 DE19813101432 DE 19813101432 DE 3101432 A DE3101432 A DE 3101432A DE 3101432 A1 DE3101432 A1 DE 3101432A1
- Authority
- DE
- Germany
- Prior art keywords
- fluidised
- bed
- fluid
- fluid base
- bulk materials
- 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.)
- Ceased
Links
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
- B01F33/402—Mixers using gas or liquid agitation, e.g. with air supply tubes comprising supplementary stirring elements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Wind Motors (AREA)
Abstract
Description
Beschreibung und Erlauterung zur Patent- undDescription and explanation of the patent and
Hilfsgebrauchsmusteranmeldung "Mechanisch unterstütztes Fluidbett fiir backende bzw. schwerfluidisierbare Schüttgüter" Schüttgüter werden oft zum Zwecke eines dosierten Austrages bzw. einer pneumatischen Förderung durch Fluidbilden fluidisiert.Auxiliary utility model registration "Mechanically assisted fluid bed for baking or difficult to fluidize bulk goods "Bulky goods are often used for Forming purposes of a metered discharge or a pneumatic conveyance by fluid fluidized.
Bei schwierigen Schüttgütern treten dabei Erscheinungen auf, die eine gleichmäßige Fluidisierun+ nicht gestatten, oft zum Zusammenbruch des Fluidbettes führen und das Material verklumpen.In the case of difficult bulk solids, phenomena occur, one Do not allow uniform fluidization, often leading to the collapse of the fluid bed lead and clump the material.
So tritt beispielsweise bei der Fluidisierung von Knlkhydrat bereits nach wenigen kunden an einer oder mehreren Stellen des Fluidbettes eine Schlotbildung auf, durch die die Fluidbettluft verstärkt abfließt, was wiederum zum Zusammenbruch der Fluidisierung in dem ibrigen Bereich des Fluidbettes führt.So, for example, already occurs in the fluidization of crystalline hydrate After a few customers, a chimney forms in one or more places on the fluidized bed on, through which the fluidized bed air flows away, which in turn leads to collapse the fluidization in the remaining area of the fluid bed leads.
Im gebildeten Schlot findet ein ähnlicher Vorgang wie in einer Schneelawine statt. Das in der Schlotmitte hochgetriebene Material rollt teilweise an den Wänden des Schlotes herunter und bildet immer größer werdende und in der Anzahl zunehmende Materialklumpen, die schließlich sowohl die Fluidisierbarkeit herabsetzen als auch zu einer Schlotverbreiterung führen.A process similar to that in a snow avalanche takes place in the chimney that has formed instead of. The material driven up in the middle of the chimney partly rolls on the walls of the chimney and forms ever larger and increasing in number Lumps of material that ultimately reduce both the fluidizability and lead to a widening of the chimney.
Das Ergebnis dieser Veränderung ist, daß selbst im Schlotbereich dann kein Fluidisieren mehr stattfindet.The result of this change is that even in the chimney area then no more fluidization takes place.
Zur Vermeidung dieses Materialverhaltens wird erfindungsgemäß vorgeschlagen, im Bereich des Fluidbettes eine zusätzliche mechanische Materialbewegung herbeizuführen, die zu einem Einsturz sich bildender Schlote führt und gleichzeitig so ausgebildet ist, daß sie zu einer Zerstorung der die FluidisierunF beeintriichtiv;enden Materialverklumpung fiihrt.To avoid this material behavior, it is proposed according to the invention that to bring about an additional mechanical material movement in the area of the fluidized bed, which leads to a collapse of the chimneys that are being formed and which is formed in this way at the same time is that they lead to the destruction of the fluidization and clumping of material leads.
Weiterhin wird erfindungsgemäß das Fluidbett geometrisch so gestaltet, daß es, verbunden mit der mechanischen Materialbewegung, zu einer Fluidbettströmung kommt, die das Material der mechanischen Bewegungseinrichtung zuführt und damit eine gleichmäßige Beseitigung der sich bildenden Verklumpung in dieser Bewegungseinrichtung bewirkt wird.Furthermore, according to the invention, the fluid bed is geometrically designed in such a way that that it, combined with the mechanical movement of the material, results in a fluidized bed flow comes, which feeds the material to the mechanical movement device and thus a uniform elimination of the clumping that forms in this movement device is effected.
Diese Bewegungseinrichtung knnn beispielsweise Walzen-, Bürsten- oder Wendelform haben.This movement device can, for example, be roller, brush or Have helical shape.
Die Abb. 1 zeigt eine beispielhafte Lösung der erfindungsgemäßen Absicht. In dieser Abbildung ist mit (1) die Rammer unter dem Fluidboden dargestellt, der bei (6) dio Fluidluft zugeführt wird.Fig. 1 shows an exemplary solution to the intention of the invention. In this figure (1) shows the rammer under the fluid floor, the at (6) the fluid air is supplied.
Mit (2) ist der Fluidbettboden dargestellt, der bei dieser Ausfiihrung eine trichterförmige Form erhält.With (2) the fluidized bed base is shown, which in this embodiment receives a funnel-shaped shape.
Dieser Trichter ist zur Aufnahme der erfindungsgemäßen mechanischen Bewegungs- und Verklumpungsauflöseeinrichtung, vorzugsweise halbrund in der Spitze, ausgebildet.This funnel is for receiving the mechanical according to the invention Movement and clumping disintegration device, preferably semicircular in the tip, educated.
Mit (7>) ist die mechanische Bewegungs- und Zerkleinerungseinheit, hier vorzugsweise als Bürste ausgebildet, dargestellt, die bei der angegebenen Drehrichtung dem mit (4) dargestellten Fluidbett die mit den Pfeilen (5) angegebene Bewegung überlagert. Hierdurch wird erfindungsgemäß erreicht, daß sowohl sich bildende Schlote seitlich zugeschoben werden als auch das Fluidgut kontinuierlich durch den Zerkleineringsbereich, beispielsweise die rotierende Bürste, geführt wird, in der kontinuierlich die sich zwischenzeitlich eingestellte Verklumpung zerstört wird.With (7>) is the mechanical movement and shredding unit, here preferably designed as a brush, shown in the specified Direction of rotation the fluid bed shown with (4) the movement indicated by the arrows (5) superimposed. In this way it is achieved according to the invention that both chimneys are formed are pushed laterally as well as the fluid material continuously through the shredding ring area, for example the rotating brush, is guided in the continuously the clumping that has been set in the meantime is destroyed.
Abbildungen 2 - 4 zeigen weitere Lösungsmöglichkeiten des erfindungsgemäßen Gedankens.Figures 2-4 show further possible solutions of the invention Thought.
Es sind natürlich viele andere Ausführungen möglich, ohne jedoch von dem Grundgedanken abzuweichen, einem Fluidbett durch eine mechanische Einrichtung eine zusitzliche Bewegung zu ertei]en, die bewirkt, daß Schlotbildungen zugefahren werden, gleichzeitig über eine entsprechende geometrische Ausbildung des F]uid -bodens das bewegte Material durch diese mechanische Einrichtung geführt wird, in der zwischenzeitlich aufgetretende Verklumpungen mechanisch zerstört werden.Many other designs are of course possible, but without to deviate from the basic idea, a fluid bed by a mechanical device to cause an additional movement that causes chimneys to close at the same time via a corresponding geometric design of the F] uid -boden the moving material is guided through this mechanical device, in the meantime any clumps that occur are mechanically destroyed.
Patentansprüche: L e e r s e i t e Patent claims: L e r s e i t e
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813101432 DE3101432A1 (en) | 1981-01-17 | 1981-01-17 | Mechanically supported fluidised bed for caking or not readily fluidisable bulk materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813101432 DE3101432A1 (en) | 1981-01-17 | 1981-01-17 | Mechanically supported fluidised bed for caking or not readily fluidisable bulk materials |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3101432A1 true DE3101432A1 (en) | 1982-09-02 |
Family
ID=6122846
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19813101432 Ceased DE3101432A1 (en) | 1981-01-17 | 1981-01-17 | Mechanically supported fluidised bed for caking or not readily fluidisable bulk materials |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3101432A1 (en) |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE88402C (en) * | ||||
DE8535C (en) * | TH. BOWICK & TH. G. BOWICK in Bedford (England) | Innovations in milking machines | ||
FR704782A (en) * | 1929-11-04 | 1931-05-26 | Voith Gmbh J M | Device for introducing granular or fibrous material, to be transported, into compressed air conduits by means of a cell wheel |
US2527466A (en) * | 1949-02-21 | 1950-10-24 | Huron Portland Cement Company | Air activated conveyer |
DE851173C (en) * | 1943-06-04 | 1952-10-02 | Smidth & Co As F L | Container for the treatment of bulk goods |
DE1756646A1 (en) * | 1968-06-21 | 1970-08-13 | Meyer Spezialmasch Bruno | Automatic weighing device |
DE1801546A1 (en) * | 1968-10-05 | 1970-10-08 | Franz Jos Waeschle Maschinenfa | Pneumatic conveyor system for particularly grainy or powdery mixes |
DE1937741A1 (en) * | 1969-07-25 | 1971-01-28 | Waeschle Maschf Gmbh | Pneumatic conveyor system for particularly grainy or powdery mixes |
US3758162A (en) * | 1968-11-22 | 1973-09-11 | B Holm | Method and apparatus for fluidizing activation of particulate, granular, viscous and similar materials |
FR2294112A1 (en) * | 1974-12-13 | 1976-07-09 | Sticht Walter | Apparatus component separating mechanism - has hopper with outlet larger than smallest dimension of individual component |
DE2351462B2 (en) * | 1972-10-19 | 1980-10-09 | A. Ahlstroem Oy, Noormarkku (Finnland) | Device for continuously emptying a container for powdery and / or granular material |
-
1981
- 1981-01-17 DE DE19813101432 patent/DE3101432A1/en not_active Ceased
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE88402C (en) * | ||||
DE8535C (en) * | TH. BOWICK & TH. G. BOWICK in Bedford (England) | Innovations in milking machines | ||
FR704782A (en) * | 1929-11-04 | 1931-05-26 | Voith Gmbh J M | Device for introducing granular or fibrous material, to be transported, into compressed air conduits by means of a cell wheel |
DE851173C (en) * | 1943-06-04 | 1952-10-02 | Smidth & Co As F L | Container for the treatment of bulk goods |
US2527466A (en) * | 1949-02-21 | 1950-10-24 | Huron Portland Cement Company | Air activated conveyer |
DE1756646A1 (en) * | 1968-06-21 | 1970-08-13 | Meyer Spezialmasch Bruno | Automatic weighing device |
DE1801546A1 (en) * | 1968-10-05 | 1970-10-08 | Franz Jos Waeschle Maschinenfa | Pneumatic conveyor system for particularly grainy or powdery mixes |
US3758162A (en) * | 1968-11-22 | 1973-09-11 | B Holm | Method and apparatus for fluidizing activation of particulate, granular, viscous and similar materials |
DE1937741A1 (en) * | 1969-07-25 | 1971-01-28 | Waeschle Maschf Gmbh | Pneumatic conveyor system for particularly grainy or powdery mixes |
DE2351462B2 (en) * | 1972-10-19 | 1980-10-09 | A. Ahlstroem Oy, Noormarkku (Finnland) | Device for continuously emptying a container for powdery and / or granular material |
FR2294112A1 (en) * | 1974-12-13 | 1976-07-09 | Sticht Walter | Apparatus component separating mechanism - has hopper with outlet larger than smallest dimension of individual component |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8110 | Request for examination paragraph 44 | ||
8131 | Rejection |