EP1783073A1 - Impeller for discharging of poorly flowable bulk material - Google Patents
Impeller for discharging of poorly flowable bulk material Download PDFInfo
- Publication number
- EP1783073A1 EP1783073A1 EP06019829A EP06019829A EP1783073A1 EP 1783073 A1 EP1783073 A1 EP 1783073A1 EP 06019829 A EP06019829 A EP 06019829A EP 06019829 A EP06019829 A EP 06019829A EP 1783073 A1 EP1783073 A1 EP 1783073A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- spiral
- bulk material
- conveyor
- shaft
- 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.)
- Withdrawn
Links
- 239000013590 bulk material Substances 0.000 title claims abstract description 24
- 238000007599 discharging Methods 0.000 title claims abstract description 11
- 230000009969 flowable effect Effects 0.000 title claims description 15
- 239000000463 material Substances 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims description 11
- 239000002023 wood Substances 0.000 claims description 7
- 238000009877 rendering Methods 0.000 abstract 1
- 230000005484 gravity Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
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
- B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation
- B65D88/68—Large containers characterised by means facilitating filling or emptying preventing bridge formation using rotating devices
Definitions
- the invention relates to a method and a device for discharging poorly pourable bulk materials, in particular sawdust, wood chips and wood chips, from a container.
- containers For storage of bulk materials containers are usually filled from above and emptied through an outlet opening on the container bottom. Intermeshing or otherwise difficult pourable bulk materials, however, are not flowable even at steep angles of repose, form material bridges over the outlet opening and therefore can not leave the container without further action.
- Out DE 197 06 407 C1 is a metering and discharge device for bulk materials is known in which a bow-shaped stirrer is attached to a metering tube with a metering.
- the bulk material flows into the dosing tube via the dosing opening and out of an outlet at its lower end.
- the metering tube is set in rotation about the longitudinal axis, so that the stirrer loosens the bulk material and the bulk material can be discharged via the metering opening.
- a device for metering of powdered bulk material in which a stirring member in the form of a screw shaft discharges the bulk material from a funnel-shaped reservoir. Depending on the speed and the direction of rotation of the screw shaft, the amount of bulk material to be metered can be changed. With a screw shaft with right-hand thread, a clockwise rotation of the shaft lead to a high dosing accuracy with low mass flow rate and a left-hand rotation to a higher mass flow rate with lower dosing accuracy.
- this device is only suitable for powdered bulk material, since this can not tilt and clump together. Poorly flowable goods, such as wood chips and wood chips tend due to their rough and jagged Surface to tilt and clumping, so that the propeller shaft is blocked.
- Claim 2 and claims 4 to 8 include advantageous embodiments of the inventive solution of claim 1 or claim 3.
- the poorly flowable bulk material in the container is rendered flowable by means of a first spiral-shaped stirring element and discharged from the container by means of a second spiral-shaped stirring element.
- the first spiral-shaped stirring element and the second spiral-shaped stirring element are particularly mechanically coupled to each other, so that only one drive is required for both stirring elements.
- the first stirrer consists of a shaft and a screw conveyor, the second stirrer of a shaft and a conveyor spiral.
- the shaft of the first and the second agitation system is the same shaft, so that the auger and the conveyor spiral are attached to a shaft. This results particularly advantageous that only one shaft is required and space can be saved.
- the delivery spiral is attached to the shaft so that it lies in the container above the ground, in particular directly above the ground.
- the auger also begins in the area of the container bottom and ends in particular above the highest possible product level, where it is connected to the shaft.
- the loosened bulk material is conveyed to the container bottom to the outlet opening, where it leaves the container.
- the device according to the invention is particularly suitable for emptying containers which are filled with sawdust and / or wood chips.
- the invention is explained below with reference to an embodiment and a drawing with a figure.
- the figure shows schematically an inventive, specially shaped stirrer.
- the agitator is shown in FIG. From a shaft 3, a screw conveyor 1 and a conveyor spiral 2.
- the conveyor spiral 2 is attached to the shaft 3, that it comes to rest directly in the container 4 above the ground, the screw conveyor 1 also begins at the bottom of the container and ends above the highest product level, where it is connected to the shaft 3.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Screw Conveyors (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Austrag schlecht rieselfähiger Schüttgüter, insbesondere Sägespäne, Holzspäne und Hackschnitzel, aus einem Behälter.The invention relates to a method and a device for discharging poorly pourable bulk materials, in particular sawdust, wood chips and wood chips, from a container.
Zur Lagerung von Schüttgütern werden Behälter üblicherweise von oben befüllt und durch eine Austrittsöffnung am Behälterboden entleert. Verzahnende oder aus anderen Gründen schlecht rieselfähige Schüttgüter sind jedoch auch bei steilen Schüttwinkeln nicht fließfähig, bilden Materialbrücken über der Auslauföffnung und können den Behälter daher nicht ohne weitere Maßnahmen verlassen.For storage of bulk materials containers are usually filled from above and emptied through an outlet opening on the container bottom. Intermeshing or otherwise difficult pourable bulk materials, however, are not flowable even at steep angles of repose, form material bridges over the outlet opening and therefore can not leave the container without further action.
Aus
Nachteilig ist hierbei jedoch, dass bei stärker verkanteten und ineinander verhakten Schüttgutpartikeln der Rührer die einzelnen Schüttgutpartikel nicht voneinander trennen kann. Die Drehung des Rührers führt in diesem Fall nur zu einer gleichmäßigen Drehbewegung des gesamten Schüttgutpartikel-"Blocks" und somit zu keinem Austrag aus dem Behälter.The disadvantage here, however, that at more tilted and interlocked bulk material particles of the stirrer, the individual bulk particles can not separate from each other. The rotation of the stirrer in this case only leads to a uniform rotational movement of the entire bulk material "block" and thus to no discharge from the container.
Aus
Diese Vorrichtung ist jedoch nur für pulverförmiges Schüttgut geeignet, da dieses sich nicht verkanten und verklumpen kann. Schlecht rieselfähige Güter, wie z.B. Holzspäne und Hackschnitzel neigen aufgrund ihrer rauen und zerklüfteten Oberfläche zu Verkantung und Verklumpung, so dass die Schraubenwelle blockiert wird.However, this device is only suitable for powdered bulk material, since this can not tilt and clump together. Poorly flowable goods, such as wood chips and wood chips tend due to their rough and jagged Surface to tilt and clumping, so that the propeller shaft is blocked.
Es ist somit Aufgabe der Erfindung, ein Verfahren und eine Vorrichtung bereitzustellen, mit dem ein Austrag schlecht rieselfähiger Schüttgüter aus einem Behälter gewährleistet wird, ohne die Nachteile des Standes der Technik aufzuweisen.It is therefore an object of the invention to provide a method and an apparatus with which a discharge of poor flowable bulk materials is ensured from a container, without having the disadvantages of the prior art.
Diese Aufgabe wird für das Verfahren erfindungsgemäß durch die in Anspruch 1 angegebenen Merkmale sowie für die Vorrichtung erfindungsgemäß durch die in Anspruch 3 angegebenen Merkmale gelöst.This object is achieved for the method according to the invention by the features specified in
Anspruch 2 sowie Ansprüche 4 bis 8 beinhalten vorteilhafte Ausführungsformen der erfindungsgemäßen Lösung aus Anspruch 1 bzw. Anspruch 3.
Erfindungsgemäß wird mittels eines ersten spiralförmigen Rührorgans das schlecht rieselfähige Schüttgut im Behälter fließfähig gemacht und mittels eines zweiten spiralförmigen Rührorgans aus dem Behälter ausgetragen. Besonders vorteilhaft ist hierbei das erste spiralförmige Rührorgan und das zweite spiralförmige Rührorgan mechanisch miteinander gekoppelt, so dass nur ein Antrieb für beide Rührorgane erforderlich ist.According to the invention, the poorly flowable bulk material in the container is rendered flowable by means of a first spiral-shaped stirring element and discharged from the container by means of a second spiral-shaped stirring element. In this case, the first spiral-shaped stirring element and the second spiral-shaped stirring element are particularly mechanically coupled to each other, so that only one drive is required for both stirring elements.
Das erste Rührorgan besteht aus einer Welle und einer Förderschnecke, das zweite Rührorgan aus einer Welle und einer Förderspirale. Insbesondere handelt es sich bei der Welle des ersten und des zweiten Rührorgans um die selbe Welle, so dass die Förderschnecke und die Förderspirale an einer Welle befestigt sind. Hierdurch ergibt sich besonders vorteilhaft, dass nur eine Welle erforderlich ist und Bauraum eingespart werden kann.The first stirrer consists of a shaft and a screw conveyor, the second stirrer of a shaft and a conveyor spiral. In particular, the shaft of the first and the second agitation system is the same shaft, so that the auger and the conveyor spiral are attached to a shaft. This results particularly advantageous that only one shaft is required and space can be saved.
Die Förderspirale ist so an der Welle befestigt, dass sie im Behälter über dem Boden, insbesondere direkt über dem Boden, zu liegen kommt. Die Förderschnecke beginnt ebenfalls im Bereich des Behälterbodens und endet insbesondere oberhalb des höchst möglichen Produktfüllstandes, wo sie mit der Welle verbunden ist.The delivery spiral is attached to the shaft so that it lies in the container above the ground, in particular directly above the ground. The auger also begins in the area of the container bottom and ends in particular above the highest possible product level, where it is connected to the shaft.
Durch die Drehung der Förderschnecke wird das Material im äußeren Bereich des Behälters nach oben zur Schüttungsoberfläche transportiert. Die Schüttung wird aufgelockert. Material im Zentrum fließt aufgrund der Schwerkraft nach unten nach. Es ergibt sich somit eine zirkulierende Bewegung des Schüttguts.The rotation of the screw conveyor, the material is transported in the outer region of the container up to the bed surface. The bed is loosened up. Material in the center flows downwards due to gravity. This results in a circulating movement of the bulk material.
Durch die Drehung der Förderspirale wird das aufgelockerte Schüttgut am Behälterboden zur Austrittsöffnung gefördert, wo es den Behälter verlässt.Due to the rotation of the conveyor spiral, the loosened bulk material is conveyed to the container bottom to the outlet opening, where it leaves the container.
Die erfindungsgemäße Vorrichtung eignet sich insbesondere zur Entleerung von Behältern, die mit Sägespänen und/oder Hackschnitzeln gefüllt sind.The device according to the invention is particularly suitable for emptying containers which are filled with sawdust and / or wood chips.
Die Erfindung wird nachstehend anhand eines Ausführungsbeispiels und einer Zeichnung mit einer Figur näher erläutert. Die Fig. zeigt schematisch ein erfindungsgemäßes, speziell geformtes Rührorgan.The invention is explained below with reference to an embodiment and a drawing with a figure. The figure shows schematically an inventive, specially shaped stirrer.
Das Rührorgan besteht gemäß der Fig. aus einer Welle 3, einer Förderschnecke 1 und einer Förderspirale 2. Die Förderspirale 2 ist so an der Welle 3 befestigt, dass sie in dem Behälter 4 direkt über dem Boden zu liegen kommt, Die Förderschnecke 1 beginnt ebenfalls am Behälterboden und endet oberhalb des höchsten Produktfüllstandes, wo sie mit der Welle verbunden 3 ist.The agitator is shown in FIG. From a
Durch die Drehung der Förderschnecke 1 wird das Material im äußeren Bereich des Behälters 4 nach oben zur Schüttungsoberfläche transportiert. Die Schüttung wird aufgelockert. Material im Zentrum fließt aufgrund der Schwerkraft nach unten nach. Es ergibt sich somit eine zirkulierende Bewegung des Schüttguts.By the rotation of the
Durch die Drehung der Förderspirale 2 wird das aufgelockerte Schüttgut am Boden des Behälters 4 zu der Austrittsöffnung 5 gefördert, wo es den Behälter 4 verlässt.By the rotation of the
- 11
- FörderschneckeAuger
- 22
- Förderspiralespiral conveyor
- 33
- Wellewave
- 44
- Behältercontainer
- 55
- Austrittsöffnungoutlet opening
Claims (8)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005052621A DE102005052621A1 (en) | 2005-11-02 | 2005-11-02 | Stirring device for discharging poorly flowable bulk materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1783073A1 true EP1783073A1 (en) | 2007-05-09 |
Family
ID=37635822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06019829A Withdrawn EP1783073A1 (en) | 2005-11-02 | 2006-09-22 | Impeller for discharging of poorly flowable bulk material |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7392895B2 (en) |
| EP (1) | EP1783073A1 (en) |
| CA (1) | CA2566955C (en) |
| DE (1) | DE102005052621A1 (en) |
| RU (1) | RU2006138634A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109384057A (en) * | 2018-11-20 | 2019-02-26 | 西安交通大学 | Solid granule steady and continuous discharge device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201000613D0 (en) * | 2010-01-15 | 2010-03-03 | Pet Mate Ltd | Feeder |
| US11618638B2 (en) | 2020-01-07 | 2023-04-04 | Cnh Industrial Canada, Ltd. | Product leveling device within a tank |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07133029A (en) | 1993-11-10 | 1995-05-23 | Nippon Kankyo Create Kk | Grain supplying device |
| DE4339974A1 (en) | 1993-11-24 | 1995-06-01 | Basf Ag | Device for dosing bulk powder, in particular dye powders |
| DE19706407C1 (en) | 1997-02-19 | 1998-06-04 | Fricke Abfuelltechnik Gmbh & C | Controlled feed and discharge device for bulk material |
| JP2002068483A (en) | 2000-08-28 | 2002-03-08 | Tatsuyuki Yamada | Supply device |
| JP2005089157A (en) | 2003-09-19 | 2005-04-07 | Shin Meiwa Ind Co Ltd | Waste storage and discharge device |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2751203A (en) * | 1952-12-05 | 1956-06-19 | Charles E Compton | Advanceable mining machine head and shaft carried bearing support therefor |
| SE343818B (en) * | 1970-01-29 | 1972-03-20 | K Tell | |
| US3949863A (en) * | 1974-09-24 | 1976-04-13 | A. R. Wood Manufacturing Company (Entire) | Combination auger system |
| SE404684B (en) * | 1976-10-26 | 1978-10-23 | Forsberg G L K | DEVICE FOR EXTRACTING MASSAGE FROM A WAREHOUSE |
| US4275808A (en) * | 1977-06-29 | 1981-06-30 | K-Tron International Inc. | Interchangeable volumetric screw feeder |
| US4324495A (en) * | 1980-07-24 | 1982-04-13 | Manville Service Corporation | Fiber feeder pulley cleaning system |
| FR2493282A1 (en) * | 1980-11-04 | 1982-05-07 | Briand Ets | SINGLE OR MULTIPLE HEAD APPARATUS FOR THE EXTRACTION OF FURNISHED, PASTY, GRANULAR OR PULVERULENT PRODUCTS, WHETHER OR NOT |
| US5685382A (en) * | 1996-04-29 | 1997-11-11 | Brydet Development Corp. | Quadrapod auger support |
| US6679559B2 (en) * | 2002-02-12 | 2004-01-20 | Warren E. Kelm | Auger flight support for plural auger coal mining systems |
-
2005
- 2005-11-02 DE DE102005052621A patent/DE102005052621A1/en not_active Withdrawn
-
2006
- 2006-09-22 EP EP06019829A patent/EP1783073A1/en not_active Withdrawn
- 2006-11-01 RU RU2006138634/12A patent/RU2006138634A/en not_active Application Discontinuation
- 2006-11-02 CA CA002566955A patent/CA2566955C/en not_active Expired - Fee Related
- 2006-11-02 US US11/591,932 patent/US7392895B2/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07133029A (en) | 1993-11-10 | 1995-05-23 | Nippon Kankyo Create Kk | Grain supplying device |
| DE4339974A1 (en) | 1993-11-24 | 1995-06-01 | Basf Ag | Device for dosing bulk powder, in particular dye powders |
| DE19706407C1 (en) | 1997-02-19 | 1998-06-04 | Fricke Abfuelltechnik Gmbh & C | Controlled feed and discharge device for bulk material |
| JP2002068483A (en) | 2000-08-28 | 2002-03-08 | Tatsuyuki Yamada | Supply device |
| JP2005089157A (en) | 2003-09-19 | 2005-04-07 | Shin Meiwa Ind Co Ltd | Waste storage and discharge device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109384057A (en) * | 2018-11-20 | 2019-02-26 | 西安交通大学 | Solid granule steady and continuous discharge device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102005052621A1 (en) | 2007-05-10 |
| CA2566955A1 (en) | 2007-05-02 |
| CA2566955C (en) | 2010-02-02 |
| US7392895B2 (en) | 2008-07-01 |
| RU2006138634A (en) | 2008-05-10 |
| US20070095632A1 (en) | 2007-05-03 |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| AK | Designated contracting states |
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| 17P | Request for examination filed |
Effective date: 20071018 |
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| 17Q | First examination report despatched |
Effective date: 20071115 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 18D | Application deemed to be withdrawn |
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