EP1433538A2 - Vorlagebehälter für pulverförmige Medien - Google Patents
Vorlagebehälter für pulverförmige Medien Download PDFInfo
- Publication number
- EP1433538A2 EP1433538A2 EP03027528A EP03027528A EP1433538A2 EP 1433538 A2 EP1433538 A2 EP 1433538A2 EP 03027528 A EP03027528 A EP 03027528A EP 03027528 A EP03027528 A EP 03027528A EP 1433538 A2 EP1433538 A2 EP 1433538A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- storage container
- section
- cross
- 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.)
- 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, upstream are.
- storage containers which are connected downstream of the screening machine are so much sifted in general Paint powder accumulated, as for complete painting a workpiece is required.
- the object of the present invention is a storage container of the type mentioned at the outset, that the grain size distribution in the discharged powder Medium does not differ essentially from the grain size distribution of the powdery medium inside of the storage container and the grain size distribution there therefore essentially over time remains constant.
- the invention makes surprising discovery Use that the grain size distribution of the powder Medium when removed from the storage container in the remains essentially unaffected if the powdered Medium not in an ascending but in a sinking movement is sucked off.
- the housing can be at least partially made of plastic consist. This will prevent the powder from sticking Avoided medium on the inner walls of the housing. If it is transparent plastic, in particular is acrylic glass, the movement processes of the powdery medium within the storage container be observed and monitored visually.
- 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)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Powder Metallurgy (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
Description
Claims (6)
- 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 in Abstand von dessen Boden angeordneten Fluidisierungsboden aus porösem, von Luft durchströmbarem Material;c) einem zwischen dem Fluidisierungsboden und dem Boden des Gehäuses liegenden Druckraum, der mit Druckluft beaufschlagbar ist,
dadurch gekennzeichnet, daßd) der Auslaß (8, 9) die Form eines nach oben offenen, sich im unteren Teilbereich (2bc) des Gehäuses (2) befindenden Trichters besitzt. - Vorlagebehälter nach Anspruch 1, dadurch gekennzeichnet, daß der Querschnitt des Teilbereichs (2bc) des Gehäuses (2) unmittelbar oberhalb des Fluidisierungsbodens (5), in dem sich der trichterförmige Auslaß (8, 9) befindet, kleiner als der Querschnitt des darüber liegenden Teilbereichs (2ba, 2bc) ist.
- Vorlagebehälter nach Anspruch 2, dadurch gekennzeichnet, daß der Querschnitt des Teilbereichs (2bc) des Gehäuses (2) unmittelbar oberhalb des Fluidisierungsbodens (5) etwa ein Zehntel des maximalen Querschnitts des Gehäuses (2) oder weniger beträgt.
- Vorlagebehälter nach Anspruch 3, dadurch gekennzeichnet, daß der Querschnitt des Teilbereichs (2bc) des Gehäuses (2) unmittelbar oberhalb des Fluidisierungsbodens (5) etwa ein Zwanzigstel des maximalen Querschnitts des Gehäuses (2) oder weniger beträgt.
- Vorlagebehälter nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß das Gehäuse (2) zumindest teilweise aus Kunststoff besteht. - Vorlagebehälter nach Anspruch 5, 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 |
---|---|---|---|
DE10261292A DE10261292B4 (de) | 2002-12-27 | 2002-12-27 | Vorlagebehälter für pulverförmige Medien |
DE10261292 | 2002-12-27 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1433538A2 true EP1433538A2 (de) | 2004-06-30 |
EP1433538A3 EP1433538A3 (de) | 2004-11-24 |
EP1433538B1 EP1433538B1 (de) | 2006-08-16 |
Family
ID=32404340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03027528A Expired - Lifetime EP1433538B1 (de) | 2002-12-27 | 2003-11-29 | Vorlagebehälter für pulverförmige Medien |
Country Status (5)
Country | Link |
---|---|
US (1) | US7063486B2 (de) |
EP (1) | EP1433538B1 (de) |
CN (1) | CN100377793C (de) |
AT (1) | ATE336304T1 (de) |
DE (2) | DE10261292B4 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005054191B3 (de) * | 2005-11-14 | 2007-01-04 | Maschinenfabrik Herbert Meyer Gmbh & Co. Kg | Vorrichtung und Verfahren zur Beschichtung von Flächen in strukturierter Form mit granulatförmigem Material |
WO2008028613A1 (de) * | 2006-09-05 | 2008-03-13 | Dürr Systems GmbH | Pulverförderpumpe zur förderung von beschichtungspulver in einer pulver-beschichtungsanlage und zugehöriges betriebsverfahren |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3062589A (en) * | 1959-12-14 | 1962-11-06 | Shell Oil Co | Feeding powder at uniform rates |
US3355222A (en) * | 1966-04-04 | 1967-11-28 | James R Neely | Gyratory fluidized solids feeder |
US4391860A (en) * | 1981-01-21 | 1983-07-05 | Eutectic Corporation | Device for the controlled feeding of powder material |
GB2132966A (en) * | 1982-12-21 | 1984-07-18 | Armotek Ind Inc | Powder feeder |
DE3531927A1 (de) * | 1985-09-07 | 1987-03-12 | Ulmer Gmbh | Metallpulverfoerdergeraet |
US4948013A (en) * | 1987-05-13 | 1990-08-14 | Ecolab Inc. | Method and apparatus for dispensing powdered pesticide |
EP0438976A2 (de) * | 1990-01-24 | 1991-07-31 | Siegfried Frei | Verfahren und Vorrichtung zur Überwachung eines Pulverstromes in einer Pulverapplikationsanlage |
EP1197265A1 (de) * | 1999-07-08 | 2002-04-17 | Kyowa Hakko Kogyo Co., Ltd. | Vorrichtung zur pulverzerstäubung |
Family Cites Families (20)
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 |
US3062689A (en) * | 1961-10-26 | 1962-11-06 | Dow Chemical Co | Method of cleaning surfaces of resinous bodies |
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 |
US3366222A (en) * | 1966-10-27 | 1968-01-30 | Lodge & Shipley Co | Feed conveyor gate |
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 |
DE3743637A1 (de) * | 1987-12-22 | 1989-07-06 | Krupp Polysius Ag | Silo fuer schuettgut |
DE3910073A1 (de) * | 1988-07-19 | 1990-01-25 | Freiberg Brennstoffinst | Verfahren und vorrichtung zur pneumatischen fliessfoerderung und dosierung staubfoermiger schuettgueter |
CN2087101U (zh) * | 1991-02-09 | 1991-10-23 | 朱忠民 | 粉末涂料流化床供粉装置 |
US5269463A (en) * | 1991-09-16 | 1993-12-14 | Plastic Flamecoat Systems, Inc. | Fluidized powder feed system with pressurized hopper |
-
2002
- 2002-12-27 DE DE10261292A patent/DE10261292B4/de not_active Expired - Fee Related
-
2003
- 2003-11-29 EP EP03027528A patent/EP1433538B1/de not_active Expired - Lifetime
- 2003-11-29 AT AT03027528T patent/ATE336304T1/de not_active IP Right Cessation
- 2003-11-29 DE DE50304644T patent/DE50304644D1/de not_active Expired - Fee Related
- 2003-12-24 US US10/746,137 patent/US7063486B2/en not_active Expired - Fee Related
- 2003-12-25 CN CNB200310113088XA patent/CN100377793C/zh not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3062589A (en) * | 1959-12-14 | 1962-11-06 | Shell Oil Co | Feeding powder at uniform rates |
US3355222A (en) * | 1966-04-04 | 1967-11-28 | James R Neely | Gyratory fluidized solids feeder |
US4391860A (en) * | 1981-01-21 | 1983-07-05 | Eutectic Corporation | Device for the controlled feeding of powder material |
GB2132966A (en) * | 1982-12-21 | 1984-07-18 | Armotek Ind Inc | Powder feeder |
DE3531927A1 (de) * | 1985-09-07 | 1987-03-12 | Ulmer Gmbh | Metallpulverfoerdergeraet |
US4948013A (en) * | 1987-05-13 | 1990-08-14 | Ecolab Inc. | Method and apparatus for dispensing powdered pesticide |
EP0438976A2 (de) * | 1990-01-24 | 1991-07-31 | Siegfried Frei | Verfahren und Vorrichtung zur Überwachung eines Pulverstromes in einer Pulverapplikationsanlage |
EP1197265A1 (de) * | 1999-07-08 | 2002-04-17 | Kyowa Hakko Kogyo Co., Ltd. | Vorrichtung zur pulverzerstäubung |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005054191B3 (de) * | 2005-11-14 | 2007-01-04 | Maschinenfabrik Herbert Meyer Gmbh & Co. Kg | Vorrichtung und Verfahren zur Beschichtung von Flächen in strukturierter Form mit granulatförmigem Material |
WO2008028613A1 (de) * | 2006-09-05 | 2008-03-13 | Dürr Systems GmbH | Pulverförderpumpe zur förderung von beschichtungspulver in einer pulver-beschichtungsanlage und zugehöriges betriebsverfahren |
Also Published As
Publication number | Publication date |
---|---|
EP1433538B1 (de) | 2006-08-16 |
DE10261292A1 (de) | 2004-08-05 |
DE50304644D1 (de) | 2006-09-28 |
CN100377793C (zh) | 2008-04-02 |
DE10261292B4 (de) | 2006-09-14 |
EP1433538A3 (de) | 2004-11-24 |
CN1513607A (zh) | 2004-07-21 |
ATE336304T1 (de) | 2006-09-15 |
US7063486B2 (en) | 2006-06-20 |
US20040184888A1 (en) | 2004-09-23 |
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