EP1433539A2 - Vorlagebehälter für pulverförmige Medien - Google Patents
Vorlagebehälter für pulverförmige Medien Download PDFInfo
- Publication number
- EP1433539A2 EP1433539A2 EP03027529A EP03027529A EP1433539A2 EP 1433539 A2 EP1433539 A2 EP 1433539A2 EP 03027529 A EP03027529 A EP 03027529A EP 03027529 A EP03027529 A EP 03027529A EP 1433539 A2 EP1433539 A2 EP 1433539A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- storage container
- container according
- fluidization
- section
- 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.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
- B05B7/1404—Arrangements for supplying particulate material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C19/00—Apparatus specially adapted for applying particulate materials to surfaces
- B05C19/02—Apparatus specially adapted for applying particulate materials to surfaces using fluidised-bed techniques
Definitions
- storage tanks are often used required for powdered media in which a certain Amount of powdered medium temporarily stored can then be deducted for further use to become.
- Such storage containers can be found, for example before, after or in screening machines in paint shops the application devices with which the paint powder is sprayed onto a workpiece, are connected upstream. In screening containers, the screening machines downstream are generally so much screened powder paint accumulated as for the complete painting of a Workpiece is required.
- the object of the present invention is a storage container of the type mentioned at the outset, that the compressed air consumption is reduced and the quality of the discharged powdery medium improved is.
- the funnel-shaped downward according to the invention has several positive consequences.
- the focus is on reduction the area of the fluidization bottom, which is almost proportional with a corresponding reduction in demand comes with compressed air.
- a desired side effect is that a certain amount of powdered medium that is located above the fluidization floor, at the shape of the housing according to the invention a larger Height occupies than this with known storage containers was the case.
- Storage container also stands in its Interior better mixing of the powder Medium. This reduces the risk of air bubbles be sucked into the downstream system.
- the upward reducing speed of the powdery Medium, the consequence of the expanding upwards Housing is finally reduced mechanical Strain on the powdery medium, so that less fine grain forms.
- the cross section of the housing in Area of the fluidization floor about a tenth, still better about a twentieth of the maximum cross-section of the case or less.
- the consumption of compressed air is lower and the more pronounced are the vortex flow and the slowing down of the flow velocity with increasing distance from the fluidization floor.
- a preferred embodiment of the invention is the one immediately above the fluidization floor located portion of the housing cylindrical. On this way it is achieved that one minimal volume of powdery medium a large one Fill level immediately above the fluidization floor established. If now in this cylindrical Partial area which contains at least one outlet even with very small ones located in the storage container Amounts of the powdered medium do not pose the risk that Air is sucked in.
- the at least one outlet is in the shape of a has the funnel open at the top, this has the storage container withdrawn powdery medium essentially the same grain composition as the powdery medium inside the storage container; so it is not preferred discharged a larger or finer grain fraction, as was the case with known storage containers.
- the housing is at least partially consists of plastic. This reduces the risk of Baking paint powder on the inner surfaces of the housing. Choosing a transparent plastic, in particular Acrylic glass, so that can run out within the housing Movements of the powdery medium visually be observed and monitored.
- An embodiment of the invention is as follows explained in more detail with reference to the drawing; the only figure shows a vertical section through a paint powder screening machine, in which a storage container according to the invention is integrated.
- the shown in the drawing and overall with the reference number 1 marked screening machine for Paint powder comprises a housing 2 in which a horizontal Sieve tray 3 is arranged.
- the housing 2 has in a circular outer contour for all horizontal cutting planes, whose diameter, however, depends on the height varies. It has the largest diameter Housing 2 at the height of the sieve bottom 3.
- the one above of the sieve bottom 3 lying inlet area 2a of the housing 2nd tapers conically upwards so that a conical shape arises.
- an inlet port 4 can be supplied via the paint powder.
- the outlet area located below the sieve plate 3 2b of the housing 2 serves as a powder storage container for downstream application devices, as below still becomes clear.
- the outlet area 2b can be from top down again in three sections 2ba, 2bb and 2bc differentiate.
- the top one, the sieve plate 3 Adjacent portion 2ba is tapered downward with a relatively small cone angle to the horizontal.
- the one adjoining the subarea 2ba at the bottom Section 2bb is also conical, however the cone angle included with the horizontal is significantly larger.
- the bottom area 2bc of the outlet area 2a is finally cylindrical.
- the cross-sectional area of the housing 2 in the lowest cylindrical Area 2bc is only about 1/23 of the cross-sectional area of the housing 2 in the area of the sieve plate 3.
- a pressure chamber 6 is formed in this way which opens a supply line 7 for compressed air.
- suction funnels 8, 9 are arranged, which expand upwards and their inlet openings point upward.
- the suction funnels 8, 9 are each with rigid, one-piece molded pipe sections 8a, 9a provided by the cylinder wall of the partial area 2bc of the housing 2 passes through and there Hoses 10, 11 are connected.
- the hoses 10, 11 each lead to a powder pump 12, 13 and from there to an application device no longer shown in the drawing, for example a powder bell, with which the powder is sprayed onto a workpiece.
- the housing 2 has one radially projecting, annular flange 14.
- This Flange 14 lies on its underside on several the circumference distributed load cells 15, which in turn via rubber buffer 16 on a fixed base 17 support.
- a level sensor 18 In the interior of the outlet area 2b of the housing 2 finally attached a level sensor 18, the basically have any known construction can.
- the electrical generated by this level sensor 18 Signal is a line 19 to a computer supplied, which controls the entire screening machine 1.
- the screening machine 1 described above operates as follows:
- the sieved powder that reaches the outlet area 2b fills the above the fluidization tray 5 lying interior of the lowest portion 2bc completely and beyond the middle section 2bb and possibly also the partial area adjacent to the sieve tray 3 2ba up to a certain height. Because of the smaller cross-section of sub-areas 2bc, 2bb and 2ba in the outlet area 2b, the paint powder is sufficient there higher than in the inlet area 2a above the sieve 3.
- the pressure chamber 6 below the fluidization tray 5 is supplied with compressed air via the feed line 7, which penetrates the fluidization base 5 upwards and fluidized the paint powder in a known manner. This is constantly on the move. Due to the funnel shape of the Conical sections 2bb and 2ba receive the paint powder flow a defined one in these areas Vertebral component, which ensures that a good Mixing of all grain sizes in the paint powder takes place. The fact that the sub-areas 2bb and 2ba upwards expand conically, the flow velocity also drops there of the paint powder, which protects the paint powder and thus ensures less fine grain formation.
- the screening process can be started.
- the pumps 12 and 13 in the hoses 10, 11 activated.
- the fluidized paint powder is now essentially from the conical sections 2bb and possibly 2ba of the outlet area 2b of the screening machine 1 sucked.
- a particularly homogeneous paint powder mixture is applied, which in particular also contains a proportion of fine grains which the fine grain fraction of the total in the outlet area 2b corresponds to the paint powder circulating there.
- the work cycle begins after the painting process has been completed the screening machine 1 again with the weighing in new portion of paint powder in the inlet area 2a.
Landscapes
- Coating Apparatus (AREA)
- Nozzles (AREA)
- Electrostatic Spraying Apparatus (AREA)
- Powder Metallurgy (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
Description
Claims (8)
- Vorlagebehälter für pulverförmige Medien, insbesondere für Lackpulver, mita) einem Gehäuse, das mindestens einen Einlaß und mindestens einen Auslaß für das pulverförmige Medium aufweist;b) einem im Innenraum des Gehäuses im Abstand von dessen Boden angeordneten Fluidisierungsboden aus porösem, von Luft durchströmbaren Material;c) einem zwischen dem Fluidisierungsboden und dem Boden des Gehäuses liegenden Druckraum, der mit Druckluft beaufschlagbar ist,
dadurch gekennzeichnet, daßd) der Querschnitt des Gehäuses (2) sich nach unten auf den Fluidisierungsboden (9) zu verjüngt. - Vorlagebehälter nach Anspruch 1, dadurch gekennzeichnet, daß der Querschnitt des Gehäuses (2) im Bereich des Fluidisierungsbodens (5) etwa ein Zehntel des maximalen Querschnitts des Gehäuses (2) oder weniger beträgt.
- Vorlagebehälter nach Anspruch 2, dadurch gekennzeichnet, daß der Querschnitt des Gehäuses (2) im Bereich des Fluidisierungsbodens (5) etwa ein Zwanzigstel des maximalen Querschnitts des Gehäuses (2) oder weniger beträgt.
- Vorlagebehälter nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß der sich unmittelbar oberhalb des Fluidisierungsbodens (5) befindende Teilbereich (2bc) des Gehäuses (2) zylindrisch ist. - Vorlagebehälter nach Anspruch 4, dadurch gekennzeichnet, daß der mindestens eine Auslaß (8, 9) sich in dem zylindrischen Teilbereich (2bc) des Gehäuses (2) befindet.
- Vorlagebehälter nach Anspruch 5, dadurch gekennzeichnet, daß der mindestens eine Auslaß (8, 9) die Form eines nach oben offenen Trichters besitzt.
- Vorlagebehälter nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß das Gehäuse (2) zumindest teilweise aus Kunststoff besteht. - Vorlagebehälter nach Anspruch 7, dadurch gekennzeichnet, daß das Gehäuse (2) zumindest teilweise aus transparentem Kunststoff, insbesondere Acrylglas, besteht.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10261276A DE10261276B4 (de) | 2002-12-27 | 2002-12-27 | Vorlagebehälter für pulverförmige Medien |
DE10261276 | 2002-12-27 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1433539A2 true EP1433539A2 (de) | 2004-06-30 |
EP1433539A3 EP1433539A3 (de) | 2004-11-24 |
EP1433539B1 EP1433539B1 (de) | 2006-06-07 |
Family
ID=32404339
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03027529A Expired - Lifetime EP1433539B1 (de) | 2002-12-27 | 2003-11-29 | Vorlagebehälter für pulverförmige Medien |
Country Status (5)
Country | Link |
---|---|
US (1) | US6948888B2 (de) |
EP (1) | EP1433539B1 (de) |
CN (1) | CN100554101C (de) |
AT (1) | ATE328672T1 (de) |
DE (2) | DE10261276B4 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7279023B2 (en) * | 2003-10-02 | 2007-10-09 | Materials And Electrochemical Research (Mer) Corporation | High thermal conductivity metal matrix composites |
WO2006019150A1 (en) * | 2004-08-20 | 2006-02-23 | Ricoh Company, Ltd. | Powder container, cleaning method and cleaning apparatus for cleaning the powder container |
DE102004059870B4 (de) * | 2004-12-13 | 2011-06-22 | EISENMANN Anlagenbau GmbH & Co. KG, 71032 | Verfahren und Anlage zur Beschichtung von Gegenständen |
DE102008016395A1 (de) * | 2008-03-29 | 2009-10-08 | Eisenmann Anlagenbau Gmbh & Co. Kg | Vorlagebehälter für pulverförmige Medien, Anlage zum Fördern von pulverförmigen Medien sowie Verfahren zum Betreiben einer solchen |
US9849462B2 (en) * | 2014-09-16 | 2017-12-26 | Snoby Separation Systems, Llc | Sifting apparatuses |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3355222A (en) * | 1966-04-04 | 1967-11-28 | James R Neely | Gyratory fluidized solids feeder |
US3501062A (en) * | 1967-09-22 | 1970-03-17 | Continental Can Co | Powder dispensing device |
GB2132966A (en) * | 1982-12-21 | 1984-07-18 | Armotek Ind Inc | Powder feeder |
EP0297463A1 (de) * | 1987-07-01 | 1989-01-04 | The Perkin-Elmer Corporation | Vorrichtung zur Zuführung von pulverförmigem Material mit einem Durchflussregler für einen geschlossenen Pulverkeislauf und entsprechendes Verfahren |
GB2226257A (en) * | 1988-11-30 | 1990-06-27 | City Electrical Factors Ltd | Powdering cables |
DE19716557A1 (de) * | 1997-04-19 | 1998-10-22 | Armin Schnell | Schüttgutdosierer |
US6220791B1 (en) * | 1999-03-11 | 2001-04-24 | Board Of Trustees Of The University Of Arkansas | Apparatus and method for the aerosolization of powders |
EP1197265A1 (de) * | 1999-07-08 | 2002-04-17 | Kyowa Hakko Kogyo Co., Ltd. | Vorrichtung zur pulverzerstäubung |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1087426A (fr) * | 1953-07-30 | 1955-02-23 | Pechiney | Perfectionnement au transport de matières pulvérulentes |
US2877056A (en) * | 1957-03-13 | 1959-03-10 | United Conveyor Corp | Method of and apparatus for feeding hot pulverulent material to a storage bin |
US2955878A (en) * | 1958-04-16 | 1960-10-11 | United Conveyor Corp | Ash hopper |
US3093418A (en) * | 1960-09-22 | 1963-06-11 | Allan M Doble | Fluidising and feeding of finely divided materials |
US3179378A (en) * | 1962-12-26 | 1965-04-20 | Ducon Co | Apparatus for mixing and transporting finely divided solids |
US3149884A (en) * | 1963-01-07 | 1964-09-22 | Magnet Cove Barium Corp | Pneumatic conveyer |
US3226166A (en) * | 1964-06-09 | 1965-12-28 | Pullman Inc | Pneumatic apparatus for handling pulverulent materials |
US3432208A (en) * | 1967-11-07 | 1969-03-11 | Us Air Force | Fluidized particle dispenser |
DE1902069A1 (de) * | 1969-01-16 | 1970-07-23 | Polysius Ag | Behaelter zur Aufnahme von feinkoernigem Gut |
DE1912733A1 (de) * | 1969-03-13 | 1970-10-01 | Bayer Ag | Verfahren und Vorrichtung zum pneumatischen Foerdern von Schuettgut |
GB1522448A (en) * | 1977-05-03 | 1978-08-23 | Hascon Ltd | Apparatus for transporting flowable particulate material |
US4262034A (en) * | 1979-10-30 | 1981-04-14 | Armotek Industries, Inc. | Methods and apparatus for applying wear resistant coatings to roto-gravure cylinders |
US4502820A (en) * | 1982-08-16 | 1985-03-05 | Denka Engineering Kabushiki Kaisha | High-pressure conveyor for powdery and granular materials |
US4834587A (en) * | 1987-05-28 | 1989-05-30 | Macawber Engineering, Inc. | Pneumatic conveying system |
US4762382A (en) | 1987-06-29 | 1988-08-09 | Honeywell Inc. | Optical interconnect circuit for GaAs optoelectronics and Si VLSI/VHSIC |
DE3743637A1 (de) * | 1987-12-22 | 1989-07-06 | Krupp Polysius Ag | Silo fuer schuettgut |
US5269463A (en) * | 1991-09-16 | 1993-12-14 | Plastic Flamecoat Systems, Inc. | Fluidized powder feed system with pressurized hopper |
DE10050923C2 (de) | 2000-10-13 | 2003-04-30 | Lorch Schweisstech Gmbh | Elektrische Schaltungsanordnung zur Erzeugung von Zündimpulsen für Schweisslichtbögen |
-
2002
- 2002-12-27 DE DE10261276A patent/DE10261276B4/de not_active Expired - Fee Related
-
2003
- 2003-11-29 DE DE50303672T patent/DE50303672D1/de not_active Expired - Lifetime
- 2003-11-29 EP EP03027529A patent/EP1433539B1/de not_active Expired - Lifetime
- 2003-11-29 AT AT03027529T patent/ATE328672T1/de not_active IP Right Cessation
- 2003-12-24 US US10/745,924 patent/US6948888B2/en not_active Expired - Fee Related
- 2003-12-25 CN CNB2003101130860A patent/CN100554101C/zh not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3355222A (en) * | 1966-04-04 | 1967-11-28 | James R Neely | Gyratory fluidized solids feeder |
US3501062A (en) * | 1967-09-22 | 1970-03-17 | Continental Can Co | Powder dispensing device |
GB2132966A (en) * | 1982-12-21 | 1984-07-18 | Armotek Ind Inc | Powder feeder |
EP0297463A1 (de) * | 1987-07-01 | 1989-01-04 | The Perkin-Elmer Corporation | Vorrichtung zur Zuführung von pulverförmigem Material mit einem Durchflussregler für einen geschlossenen Pulverkeislauf und entsprechendes Verfahren |
GB2226257A (en) * | 1988-11-30 | 1990-06-27 | City Electrical Factors Ltd | Powdering cables |
DE19716557A1 (de) * | 1997-04-19 | 1998-10-22 | Armin Schnell | Schüttgutdosierer |
US6220791B1 (en) * | 1999-03-11 | 2001-04-24 | Board Of Trustees Of The University Of Arkansas | Apparatus and method for the aerosolization of powders |
EP1197265A1 (de) * | 1999-07-08 | 2002-04-17 | Kyowa Hakko Kogyo Co., Ltd. | Vorrichtung zur pulverzerstäubung |
Also Published As
Publication number | Publication date |
---|---|
CN100554101C (zh) | 2009-10-28 |
EP1433539B1 (de) | 2006-06-07 |
EP1433539A3 (de) | 2004-11-24 |
CN1511768A (zh) | 2004-07-14 |
DE50303672D1 (de) | 2006-07-20 |
DE10261276B4 (de) | 2005-12-01 |
US20040197153A1 (en) | 2004-10-07 |
DE10261276A1 (de) | 2004-07-22 |
ATE328672T1 (de) | 2006-06-15 |
US6948888B2 (en) | 2005-09-27 |
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