WO2006097211A1 - Vorrichtung zum fördern pul verförmiger fluidisierter medien - Google Patents
Vorrichtung zum fördern pul verförmiger fluidisierter medien Download PDFInfo
- Publication number
- WO2006097211A1 WO2006097211A1 PCT/EP2006/002010 EP2006002010W WO2006097211A1 WO 2006097211 A1 WO2006097211 A1 WO 2006097211A1 EP 2006002010 W EP2006002010 W EP 2006002010W WO 2006097211 A1 WO2006097211 A1 WO 2006097211A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- valve body
- channel
- sealing portion
- storage container
- connecting channel
- Prior art date
Links
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
Definitions
- the invention relates to a device for conveying powdered fluidized media, in particular a paint powder, with
- a pump which sucks the medium from the storage tank via a connecting channel closable by a valve body.
- Such devices are particularly useful in surface engineering, e.g. the automotive industry, for conveying paint powder to an application device, for example a rotary atomizer used.
- an application device for example a rotary atomizer used.
- Different types of pumps can be used.
- a negative pressure is generated with the aid of per se known piston pumps, whereby the fluidized in a reservoir tank paint powder is sucked and conveyed to a nebulizer to be there on an object, such as a vehicle body, applied.
- the object of the invention is therefore to provide a device of the type mentioned, which is less susceptible to interference.
- valve body sealingly engages in the end region of the connecting channel with a sealing section and activates a conveying gas.
- a pump is formed, which apart from the valve body has no moving parts and whose pumping action is achieved by the Venturi nozzle.
- a delivery gas is blown through the delivery channel of the valve body, which generates a negative pressure when entering the Venturi nozzle. This sucks the fluidized medium from the storage container, when the valve body assumes its open position. If no medium is sucked out of the storage container, the Venturi nozzle is tightly closed by the valve body is moved to its closed position.
- the conveying gas can be fed to the connecting channel downstream of the sealing section of the valve body, it is advantageously achieved that the conveying gas can still be fed to the connecting channel when the valve body assumes its closed position and the flow path of the medium from the receiving container is blocked , Thus, the entire area of the device can be almost completely emptied of medium downstream of the sealing section, without medium flows from the feed tank.
- valve body has a valve stem and a head portion attached thereto.
- the Ventilk ⁇ rpers is so mainly in terms of lying in its interior conveyor gas channel easier to manufacture.
- the conveying gas channel of the valve body ends on the outlet side in an annular gap which is coaxial with the valve body.
- the sealing section is designed as a collar of the head section, which has an inner circumferential surface which, together with a radially inner outer circumferential surface of the upper end region of the valve stem, which is parallel thereto, delimits the annular gap.
- the width of the inlet gap of the annular Venturi nozzle is easily adjustable when the valve body is connected to a controllable lifting device.
- the single figure shows a partial section of a device for conveying powdered fluidized media.
- the device 10 comprises a storage container 12 having a housing 14 schematically indicated by a dashed line, to which paint powder is supplied in a manner known per se via a line 16.
- the storage container 12 has a fluidization base 20 made of a porous material.
- a fluidization base 20 made of a porous material.
- the fluidization base 20 has a continuous stepped bore 28 with a first, the interior 26 facing bore portion 30, and a second pressure chamber 22 facing bore portion 32.
- the latter has a smaller diameter than the first bore portion 30.
- the first bore portion 30 of the stepped bore 28 extends slightly more than half the thickness of the Fluidi- sellessêt 20 into the same and has a inside lying cylindrical portion 34 and a widening in the direction of the inner space 26 of the storage container 12 outer conical region 36, the Konizticianswinkel is about 3 °.
- a housing 40 surrounding a housing 42 is mounted, the top 44 abuts against the outside of the bottom 18 of the storage container 12.
- the housing 42 is aligned such that an opening 46 in its upper side 44, which has a slightly smaller diameter than the second bore portion 32 of the stepped bore 28 in the fluidization base 20, coaxial with the opening 38 in the bottom 18 of the reservoir 12 is located.
- a connecting sleeve 48 is provided with an axial through hole 50.
- the connecting sleeve 48 has an end, to the first bore portion 30 of the stepped bore 28 complementary flange 52, to which a central portion 54 connects. Its outer diameter corresponds to that of the second bore portion 32 of the stepped bore 28.
- the middle portion 54 goes into one
- connection sleeve 48 is in register in the stepped bore 28 in the fluidization base 20 and the opening 38 of the bottom 18 of the storage container 12 and in the opening 46 of the Housing 42 can be used, as shown in the figure.
- a seal of the housing 42 against the pressure chamber 22 of the storage container 12 is effected by an O-ring 58 in a recessed in the peripheral wall of the opening 46 of the housing 42 groove 60 which abuts against the end portion 56 of the connecting sleeve 48.
- the through-bore 50 of the connecting sleeve 48 has a constant cross-section in a section 62 extending from the end section 56 to just before the region of the flange 52. This section 62 then merges into a conically upwardly widening section 64.
- an external thread 66 is provided at the bottom 18 of the reservoir 12 facing the end of the central portion 54 of the connecting sleeve 48.
- the connecting sleeve 48 is fixed with respect to the fluidizing bottom 20 of the storage container 12 via this.
- a fastening ring 68 with corresponding internal thread 70 is seated on the external thread 66 of the connecting sleeve 48, wherein a spacer sleeve 72, a damping ring 74 made of elastic material and a washer 76 are arranged between the fastening ring 68 and the fluidization floor 20, which surround the connecting sleeve 48 , as can be seen in the figure.
- a further damping ring 78 made of elastic material is provided between the mounting ring 68 and the bottom 18 of the storage container 12.
- valve body 82 closes the flow path of the powder coating from the reservoir 12 to the interior 40 of the housing 42nd
- the valve body 82 comprises a valve stem 84 and a screwed into this head portion 86.
- this head portion 86 In the latter form integrally merging into each other a cone 88, a cylinder 90 and a collar 92, the outer circumferential surface of the head part 86th
- the cone 88 has an opening angle of about 90 °.
- the cylinder 90 has a relatively small axial extent.
- the cross-section of the collar 92 corresponds to a right-angled triangle whose hypotenuse forms the outer circumferential surface of the collar 92, which tapers in the direction of the fluidization base 20.
- Their cone angle corresponds to the cone angle of the conical portion 64 of the through hole 50 of the connecting sleeve 48, so that the head portion 86 with its collar 92 can fit into this section 64 in register, as shown in the figure.
- the collar 92 thus forms a sealing portion of the valve body 82, which abuts up to the upper end of the connecting sleeve 48 when the valve body 82 assumes its closed position.
- a cylindrical projection 94 At the lower end face of the cylinder Section 90 of the head part 80 is centrally formed a cylindrical projection 94, so that between the collar 92 and the projection 94 a circumferential groove 96 is formed.
- the projection 94 in turn carries integrally and centrally a threaded bolt 98, via which the head part 86 is screwed into a complementary threaded bore 100 in a cooperating with the head part 86, down conically tapered air distributor portion 102 of the valve stem 84 is screwed.
- the threaded bore 100 opens into an air distribution chamber 104 of the valve stem 84.
- axially parallel channels 106 are provided at a uniform angular distance, which, like the threaded bore 100, originate from the flat end face of the distributor section 102 and open into the air distribution chamber 104.
- the channels 106 communicate with the head part 86 screwed in with its groove 96.
- the conical region of the outer lateral surface of the air distributor section 102 extends at a slightly larger cone angle than the inner lateral surface of the conical section 64 of the through-bore 50.
- the conical portion 64 of the through-hole 50 of the connecting channel 48 and the air-distributing portion 102 of the valve body 82 thus each form an upper end portion of the connecting channel 48 and the valve body 82, which are formed so that between them an annular Venturi nozzle 107 is formed ,
- the groove 96 of the head part 86 passes radially outward into an axial annular gap 108 between the inner circumferential surface of the collar 92 and the valve stem 84.
- the outer circumferential surface of the air distributor section extends 102 of the valve stem 84 at the level of the collar 92 of the head portion 86 at a distance of about 0.05 mm parallel to the inner circumferential surface of the collar 92.
- the upper end of the valve stem 84 in the drawing has a radially circumferential chamfer 110, the equalization of the Air flow serves.
- the air distributor section 102 of the valve stem 84 is followed by a section 112 of constant cross-section which extends into the interior space 40.
- the section 112 of the valve stem 84 has an axial bore 114 which opens at one end into the air distribution chamber 104 and at the other end has an internal thread 116.
- a bore 116 passes through which opens vertically into the axial bore 114.
- the bore 116 is tightly connected to a flexible hose 118 which is sealed by a bulkhead connection 120 through a side wall of the housing 42 passes and can be acted upon with compressed air.
- the annular gap 108 is also connected in the shown closed position of the valve body 82 with the annular space which is formed between the outer surface of the valve stem 82 and the inner lateral surface of the through-bore 50 of the connecting sleeve 48 and into the inner space 40 the housing 42 opens.
- a lifting device 122 Via the thread 116, the portion 112 of the valve stem 84 is connected to a lifting device 122. These comprises an extending through a side wall of the housing 42 rotating shaft 124. At its lying in the interior 40 of the housing 42 end wall 126, one end of a connecting member 128 is rotatably mounted about an axis of rotation 124 axis-parallel hinge pin 129.
- Joint pin 129 is thus arranged eccentrically on the end wall 126 of the rotary shaft 124.
- the rotary shaft 124 runs in a shaft housing 130 which is releasably secured to the housing 42.
- the shaft housing 130 is displaceable in the parallel direction to the side wall of the housing 42 with dissolved attachment.
- the housing 42 has a shaft housing 130 receiving opening 132 which is slightly larger than the lying in the opening 132 portion of the shaft housing 130.
- the shaft housing 130 is attached via a circumferential sealing ring provided with mounting flange 134 on the side wall of the housing 42.
- the connecting member 128 is rotatably connected at its other end about a rotationally parallel to the shaft 124 pivot pin 135 with a connecting piece 136 which is screwed via a complementary external thread in the threaded portion 116 of the axial bore 114 of the air manifold 84.
- the position of the shaft housing 130 and the angular position of the rotary shaft 124 are selected such that the hinge pin 129 connecting the link 122 to the rotary shaft 124 has the smallest distance from the bottom 138 of the housing 42 when the valve body 82 has its (closing) position shown in FIG. ) Takes a position.
- a powder outlet 140 is provided, to which a hose 141 is attached. This leads to an application device, not shown. Behind the inlet opening 142 of the powder outlet 140, its inner lateral surface tapers in the flow direction in the manner of a Venturi nozzle in an initial region 144, initially relatively strongly inwards, in order then to expand again substantially uniformly.
- the inner surface of the wall of the housing 42, through which the powder outlet 140 extends, is aligned with the inlet opening 142 of the powder outlet 140 and slopes upwardly and outwardly therefrom.
- the device 10 described above works as follows:
- the paint powder located in the interior space 26 of the reservoir 12 is, as mentioned above, through the pressure chamber
- the compressed air is supplied to the pressure chamber 22 with a maximum pressure of 2.0 bar, preferably between 0.25 and 0.5 bar.
- the hose 118 is also pressurized with compressed air. On its flow path, this compressed air first flows through the axial bore 114 of the valve stem 84 in the air distribution chamber 104. From there it distributes itself through the channels 106 evenly into the groove 96 between the air distributor 84 and the head part 86 of the valve body 82. Finally, the compressed air flows out the axial annular gap 108 parallel to the axis of the valve body 82 in the space between the valve stem 84 and the connecting sleeve 48 and further into the interior 40 of the housing 42nd If paint powder is now to be conveyed out of the storage container 12 to the application device, the valve body 82 is displaced in the direction of the interior 26 of the storage container 12, that is to say upward in the FIGURE. For this purpose, the rotary shaft 124 of the lifting device 122 is rotated by a servomotor, not shown. As a result, the connecting member 128 is moved upward and the valve body 82 is moved over the connecting piece 136 upwards.
- the components are coordinated so that the maximum stroke of the valve body 82 is about 4.0 mm; the respective stroke depends on the angular extent of the rotation of the rotary shaft 124.
- the flow rate of the withdrawn from the reservoir 12 paint powder can be adjusted by the stroke of the valve body 82.
- the fluidized coating powder fed to the interior 40 of the housing 42 is guided into the powder outlet 140 by the air flow. If necessary, air is blown into the Venturi nozzle-like shaped powder outlet 140 through the compressed air nozzle 146. This additional introduction of air increases the conveying speed • the paint powder and cleans the conveyor channel.
- the rotary shaft 124 is rotated back accordingly, so that the valve body 82 is pulled back down to its closed position shown in the figure. Then the collar 92 of the Ventilk ⁇ rpers 82 is again sealingly in the connecting sleeve 48 and it can no more paint powder from the storage tank 12 into the interior 40 of the housing 42 to pass.
- the geometry of the head portion 86 of the valve body 82 ensures that substantially no paint powder adheres to the outer circumferential surface of the head portion 86.
Landscapes
- Nozzles (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06707431A EP1858647A1 (de) | 2005-03-18 | 2006-03-06 | Vorrichtung zum fördern pul verförmiger fluidisierter medien |
CA2602177A CA2602177C (en) | 2005-03-18 | 2006-03-06 | Device for guiding powdery fluidic media |
US11/886,438 US8147213B2 (en) | 2005-03-18 | 2006-03-06 | Device for guiding powdery fluidic media |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005013091.7 | 2005-03-18 | ||
DE102005013091A DE102005013091B3 (de) | 2005-03-18 | 2005-03-18 | Vorrichtung zum Fördern pulverförmiger fluidisierter Medien |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006097211A1 true WO2006097211A1 (de) | 2006-09-21 |
Family
ID=36386361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2006/002010 WO2006097211A1 (de) | 2005-03-18 | 2006-03-06 | Vorrichtung zum fördern pul verförmiger fluidisierter medien |
Country Status (6)
Country | Link |
---|---|
US (1) | US8147213B2 (de) |
EP (1) | EP1858647A1 (de) |
CN (1) | CN100571891C (de) |
CA (1) | CA2602177C (de) |
DE (1) | DE102005013091B3 (de) |
WO (1) | WO2006097211A1 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006032184B4 (de) * | 2006-07-12 | 2010-06-17 | Eisenmann Anlagenbau Gmbh & Co. Kg | Vorrichtung zum Fördern pulverförmiger fluidisierter Medien |
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 |
CH702021A2 (de) * | 2009-10-06 | 2011-04-15 | Frei Engineering Ag | Vorrichtung zum Auftragen von Pulverlack. |
JP6290207B2 (ja) * | 2012-07-16 | 2018-03-07 | ノードソン コーポレーションNordson Corporation | ベンチュリポンプ又は濃密相ポンプから供給するために構成可能なパウダーガン |
FR3004767B1 (fr) | 2013-04-17 | 2015-05-15 | Sames Technologies | Pompe a effet venturi et installation d'application de revetement de peinture |
EP3142950B1 (de) | 2014-05-15 | 2019-01-30 | Nordson Corporation | Dichtstrom-pumpendiagnostik |
DE102015213824A1 (de) * | 2015-07-22 | 2017-01-26 | Volkswagen Aktiengesellschaft | Sprühvorrichtung zum Auftragen eines Farbmediums auf ein Bauteil eines Kraftfahrzeuges |
EP3300229B1 (de) * | 2016-09-27 | 2021-09-15 | Nti Ag | Hubdrehvorrichtung |
CN106516752B (zh) * | 2016-11-11 | 2024-05-28 | 航天长征化学工程股份有限公司 | 一种柱塞式粉煤加压输送装置 |
CN109850195B (zh) * | 2018-12-13 | 2021-03-26 | 重庆军通汽车有限责任公司 | 基于粉体的加料装置 |
CN114251311B (zh) * | 2020-09-21 | 2024-03-22 | 汕头市潮南区振业实业有限公司 | 用于元明粉干粉自动输送系统的风泵组件及控制方法 |
CN112917863B (zh) * | 2020-12-30 | 2021-12-24 | 湖北永晟塑料管业有限责任公司 | 一种新型管道生产设备 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LU28105A1 (de) * | ||||
US1386009A (en) * | 1919-10-11 | 1921-08-02 | Mcdonald John Urban | Feeder for powdered fuel |
JPS62279858A (ja) * | 1986-05-28 | 1987-12-04 | Daiwa Seiko Kk | 粉・液兼用動力散布機 |
DE10250000B3 (de) * | 2002-10-26 | 2004-04-08 | Eisenmann Maschinenbau Kg | Vorlage- und Dosierbehälter für pulverförmige Medien |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1566517A (en) * | 1925-12-22 | Ing co | ||
US4272228A (en) * | 1979-04-11 | 1981-06-09 | Security Plastics, Inc. | High volume dispensing pump |
US5037247A (en) * | 1989-11-29 | 1991-08-06 | Nordson Corporation | Powder pump with internal valve |
JPH06129563A (ja) * | 1992-10-16 | 1994-05-10 | Toyota Motor Corp | 切替バルブ |
FR2737980B1 (fr) * | 1995-08-23 | 1997-11-28 | Sames Sa | Procede et dispositif de projection de produit de revetement |
DE19748821A1 (de) * | 1997-11-05 | 1999-05-06 | Itw Gema Ag | Pulver-Sprühbeschichtungsvorrichtung |
DE29721567U1 (de) * | 1997-12-11 | 1998-02-19 | Richter, Siegfried, Dipl.-Ing. (FH), 88605 Sauldorf | Saugpulsator |
US20030038193A1 (en) * | 2000-07-11 | 2003-02-27 | Rehman William R. | Unipolarity powder coating systems including improved tribocharging and corona guns |
US6830414B2 (en) * | 2003-03-27 | 2004-12-14 | General Motors Corporation | Canister powder paint delivery apparatus and method |
US7216814B2 (en) * | 2003-10-09 | 2007-05-15 | Xiom Corp. | Apparatus for thermal spray coating |
-
2005
- 2005-03-18 DE DE102005013091A patent/DE102005013091B3/de not_active Expired - Fee Related
-
2006
- 2006-03-06 WO PCT/EP2006/002010 patent/WO2006097211A1/de not_active Application Discontinuation
- 2006-03-06 CA CA2602177A patent/CA2602177C/en not_active Expired - Fee Related
- 2006-03-06 CN CNB2006800085889A patent/CN100571891C/zh not_active Expired - Fee Related
- 2006-03-06 US US11/886,438 patent/US8147213B2/en not_active Expired - Fee Related
- 2006-03-06 EP EP06707431A patent/EP1858647A1/de not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LU28105A1 (de) * | ||||
US1386009A (en) * | 1919-10-11 | 1921-08-02 | Mcdonald John Urban | Feeder for powdered fuel |
JPS62279858A (ja) * | 1986-05-28 | 1987-12-04 | Daiwa Seiko Kk | 粉・液兼用動力散布機 |
DE10250000B3 (de) * | 2002-10-26 | 2004-04-08 | Eisenmann Maschinenbau Kg | Vorlage- und Dosierbehälter für pulverförmige Medien |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 012, no. 172 (C - 497) 21 May 1988 (1988-05-21) * |
Also Published As
Publication number | Publication date |
---|---|
DE102005013091B3 (de) | 2006-09-14 |
US8147213B2 (en) | 2012-04-03 |
CN100571891C (zh) | 2009-12-23 |
CN101142030A (zh) | 2008-03-12 |
CA2602177A1 (en) | 2006-09-21 |
EP1858647A1 (de) | 2007-11-28 |
CA2602177C (en) | 2014-09-23 |
US20090004028A1 (en) | 2009-01-01 |
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