EP1433539A2 - Récipient pour produits pulvérulents - Google Patents

Récipient pour produits pulvérulents Download PDF

Info

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
Application number
EP03027529A
Other languages
German (de)
English (en)
Other versions
EP1433539B1 (fr
EP1433539A3 (fr
Inventor
Jan Reichler
Erwin Hihn
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.)
Eisenmann Anlagenbau GmbH and Co KG
Original Assignee
Eisenmann Anlagenbau GmbH and Co KG
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 Eisenmann Anlagenbau GmbH and Co KG filed Critical Eisenmann Anlagenbau GmbH and Co KG
Publication of EP1433539A2 publication Critical patent/EP1433539A2/fr
Publication of EP1433539A3 publication Critical patent/EP1433539A3/fr
Application granted granted Critical
Publication of EP1433539B1 publication Critical patent/EP1433539B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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)
EP03027529A 2002-12-27 2003-11-29 Récipient pour produits pulvérulents Expired - Lifetime EP1433539B1 (fr)

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 (fr) 2004-06-30
EP1433539A3 EP1433539A3 (fr) 2004-11-24
EP1433539B1 EP1433539B1 (fr) 2006-06-07

Family

ID=32404339

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03027529A Expired - Lifetime EP1433539B1 (fr) 2002-12-27 2003-11-29 Récipient pour produits pulvérulents

Country Status (5)

Country Link
US (1) US6948888B2 (fr)
EP (1) EP1433539B1 (fr)
CN (1) CN100554101C (fr)
AT (1) ATE328672T1 (fr)
DE (2) DE10261276B4 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
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 (fr) * 2004-08-20 2006-02-23 Ricoh Company, Ltd. Contenant à poudre, procédé de nettoyage et appareil de nettoyage pour nettoyer le contenant à poudre
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)

* Cited by examiner, † Cited by third party
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 (fr) * 1987-07-01 1989-01-04 The Perkin-Elmer Corporation Système d'alimentation en poudre avec an régulateur de coulée de poudre en circuit fermé et procédé correspondant
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 (fr) * 1999-07-08 2002-04-17 Kyowa Hakko Kogyo Co., Ltd. Dispositif de pulverisation d'une substance en poudre

Family Cites Families (18)

* Cited by examiner, † Cited by third party
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

Patent Citations (8)

* Cited by examiner, † Cited by third party
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 (fr) * 1987-07-01 1989-01-04 The Perkin-Elmer Corporation Système d'alimentation en poudre avec an régulateur de coulée de poudre en circuit fermé et procédé correspondant
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 (fr) * 1999-07-08 2002-04-17 Kyowa Hakko Kogyo Co., Ltd. Dispositif de pulverisation d'une substance en poudre

Also Published As

Publication number Publication date
CN100554101C (zh) 2009-10-28
EP1433539B1 (fr) 2006-06-07
EP1433539A3 (fr) 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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