WO2001075342A1 - Dispositif de dosage - Google Patents

Dispositif de dosage Download PDF

Info

Publication number
WO2001075342A1
WO2001075342A1 PCT/BE2001/000057 BE0100057W WO0175342A1 WO 2001075342 A1 WO2001075342 A1 WO 2001075342A1 BE 0100057 W BE0100057 W BE 0100057W WO 0175342 A1 WO0175342 A1 WO 0175342A1
Authority
WO
WIPO (PCT)
Prior art keywords
dosing device
butterfly valve
valve
axle
housing
Prior art date
Application number
PCT/BE2001/000057
Other languages
English (en)
Inventor
Ronny Van Den Bulcke
Original Assignee
J-Tec Service, Naamloze Vennootschap
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 J-Tec Service, Naamloze Vennootschap filed Critical J-Tec Service, Naamloze Vennootschap
Priority to AU46256/01A priority Critical patent/AU4625601A/en
Publication of WO2001075342A1 publication Critical patent/WO2001075342A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves

Definitions

  • This invention relates to a dosing device for dosing powder .
  • dosing device here any dosing device has to be understood which allows to adjust a flow, in this case, a flow of powder, from large to small, and preferably also to stop it completely-
  • Such dosing device makes it possible to drain a precisely determined quantity from a receptacle or to bring it into a receptacle, mostly in combination with a weighing device or another measuring device.
  • Such dosing devices are provided, fixed or removable, at the exit beneath a silo, a barrel or another receptacle or a funnel or are installed in a conduit.
  • dosing may take place by means of the valve which is present for closing off.
  • the valve is opened completely until the desired quantity is reached, after which the valve is almost closed and still lets through a very small flow which, by closing the valve, immediately is brought to zero when the desired quantity exactly has been reached.
  • known dosing devices comprise a driven dosing screw or worm for pressing the powder outward and a valve which can be brought into completely open or completely closed condition for entirely closing off the exit after dosing.
  • the flow rate is limited by the screw, which means that, in consideration of the fact that all of the powder has to be moved by the screw, it will take a relatively long time until the desired quantity of powder has been delivered if this latter is relatively large.
  • the invention has as an aim to remedy these disadvantages and to provide a dosing device which does not only allow a precise dosing, but with which the desired quantity can be obtained in a fast manner and which, moreover, can be realized relatively inexpensive and compact.
  • the dosing device comprises a butterfly valve beared in a valve housing and means for rotating this butterfly valve in the valve housing, whereby at least one vibrating mechanism is provided on the butterfly valve.
  • the butterfly valve can be turned completely open until the desired quantity is almost reached, as a result of which the major part of the powder can flow through the device at a large flow rate. If the flow is not maximum, the butterfly valve can be vibrated.
  • the vibrating mechanism according to the invention has a high frequency, this is a frequency higher than 50 Hz and preferably between 280 and 390 Hz.
  • the vibrating mechanism can be incorporated in the axle with which the butterfly valve is beared in the valve housing.
  • the valve housing preferably comprises an elastic ring, for example, a ring made of silicone rubber.
  • This ring can provide entirely or partially for sealing when the device is mounted at the outlet opening of a receptacle.
  • the dosing device may comprise a conical ring which cooperates with a conically narrowed extremity of the valve housing, whereas the whole can be surrounded by a pot which, possibly detachable, can be attached to the receptacle or silo or similar.
  • the turning of the butterfly valve can be performed automatically or manually.
  • the dosing device comprises a, preferably detachable, handle which is connected to the axle of the butterfly valve and protrudes out of the valve housing.
  • figure 1 represents a perspective view of a dosing device according to the invention, with the parts taken apart;
  • figure 2 represents a cross-section according to line II-II in figure 1;
  • figure 3 represents a cross-section according to line III-III in figure 2 ;
  • figure 4 represents a cross-section of a barrel on which a dosing device according to the invention is mounted ;
  • figure 5, at a larger scale, represents the part indicated by F5 in figure 4.
  • the dosing device represented in figures 1 and 2 substantially consists of a ring-shaped valve housing 1 in which a round butterfly valve 2 is beared on which at least one, and in the represented example, two, vibrating mechanisms 3 are provided, and means for turning the butterfly valve 2 in the valve housing 1 which, in the represented example, are manual means, formed by a detachable handle 4.
  • the ring-shaped valve housing 1 is elastically deformable in order to allow the mounting and dismounting of the butterfly valve 2 without using a tool.
  • this valve housing 1 is manufactured of synthetic material, in particular silicone rubber.
  • Said ring-shaped valve housing 1 is provided with two diametrically opposed round openings 5 and, at one extremity, is provided with a conical part 6 at the inside.
  • the butterfly valve 2 consists of a round disc 7 with two diametrically opposed recesses and an axle consisting of two hollow axle ends 8 which are attached to the round disc 7 at the location of a ' recess.
  • a vibrating mechanism 3 which consists of an excenter element 9 which is attached to an axle 10 and which is driven pneumatically at a frequency which is larger than 50 Hz and preferably between 280 Hz and 390 Hz.
  • this excenter element 9 is formed by a round disc which, around its center, is provided with openings of which two adjacent ones are filled with heavy-weight metal.
  • the excenter element 9 is installed axially in the axle end 8 in a round cavity 11 which surrounds the excenter element 9 excentrically and which is closed off at the exterior side by a plug 12.
  • connection nipple 13 is screwed to which a compressed air conduit 14 is attached which is connected to a source of compressed air which can be switched on and off, more particularly, for example, a source with a pneumatic valve 15 which itself is connected to a compressed air reservoir.
  • connection nipple 13 is connected to the cavity 11 by means of a channel 16 and a peripheral groove 17 in the plug 12 and a channel 18 in the axle end 8.
  • the channel 18 tangentially gives out onto the corrugated periphery of the excenter element 9, at the location where this latter is situated nearest to the interior wall of the cavity 11.
  • the two vibrating mechanisms 3 simultaneously are fed with compressed air, and the two vibrating mechanisms rather fast will work in synchronisation in order to vibrate the butterfly valve 2.
  • each axle end 8 comprises an end piece 20 made of synthetic material which covers the plug 12 and is screwed to the remainder of the axle end 8 and is provided with a square opening 21 in its center into which the square end of the handle 4 is fitting.
  • connection nipple 13 This end is hollow and surrounds the connection nipple 13.
  • the compressed air conduit 14 which is connected to this latter, extends through a hollow pipe-shaped portion of the removable handle 4.
  • the two axle ends 8 are surrounded by sleeves 22 which are provided in the two openings 5.
  • one axle end 8 is provided in the one opening 5, after which, by elastic deformation of the valve housing 1, the other axle end 8 is pushed into the other opening 5 and subsequently in each opening 5 a sleeve 22 is provided around the axle end 8 and only thereafter the compressed air conduits 14 and the handle 4 are provided.
  • the dosing device For attaching the valve housing 1 with the butterfly valve 2 on the exit of a receptacle, the dosing device comprises an outer housing 23 in the shape of a pot with at one extremity an outwardly-directed collar 24 and at its other extremity an open portion with a smaller diameter, such that an inner collar 25 is formed.
  • the outer housing 23 is provided with two diametrically opposed openings 26 and, in the proximity of the collar 24, has a small opening 27.
  • valve housing 1 with therein the butterfly valve 2 fits precisely into the outer housing 23, with its not- narrowed extremity on the inner collar 25.
  • this outer housing 23 also a conical ring 28 is fitting which cooperates with the conical portion 6 of the valve housing 1.
  • This conical ring 28 has an outwardly-directed collar 29 at its widest extremity, which collar, when the ring 28 rests against the conical portion 6, is situated opposite to the collar 24 of the outer housing 23.
  • the dosing device is represented in mounted condition, installed at a receptacle 30.
  • such receptacles are provided with a protruding rim 31 at their filling opening, at which rim during transport a lid with a clamping ring can be fixed.
  • Such receptacles 30 are also used for transporting poisonous and/or environmentally unfriendly powders, and in such cases they mostly are lined by one or two liners of plastic foil. In figure 2, such receptacle 30 with two liners 32 and 33 is represented.
  • the dosing device described in the aforegoing is constructed such that these two liners 32 and 33 with their open extremity also are fixed in the dosing device when this latter is mounted.
  • the lid is removed from the receptacle 30, the exterior liner 32 is folded outward over the rim 31 of the receptacle 30, and the conical ring 28 is placed with its collar 29 onto this rim, with the liner 32 in between.
  • a rubber sealing ring 34 is provided around the ring 28 and against its collar 29, a rubber sealing ring 34 is provided.
  • the inner liner 33 is opened and folded outward over the narrow extremity of the conical ring 28.
  • the collar 24 of the outer housing 23 is connected to the rim 31 of the receptacle 30 by means of a clamping ring 35.
  • the receptacle 30 With the butterfly valve 2 in closed position, the receptacle 30 is brought upside down and on top of the receptacle which has to be filled with a dose which has to be precisely determined.
  • a cap can be temporarily provided on the narrow extremity of the outer housing 23 or of an extension piece connected thereto.
  • the tilting can be performed by means of a so-called manipulator, this is a device for lifting and tilting the receptacle 30, in which the outer housing 23, for example, is attached by clamping.
  • this outer housing 23 may form a part of the manipulator.
  • the butterfly valve 2 is vibrated by supplying compressed air through the compressed air conduits 14 to the vibrating mechanisms 2.
  • the powder which is on the butterfly valve 2 will behave like a liquid and even flow through a small gap.
  • a vacuum conduit 36 is connected to the opening 27 in the outer housing 23. Through openings cut into the outer liner 32 and an opening 37 in the conical ring 28, air is suctioned from the space in between the two liners 32 and 33.
  • the butterfly valve 2 When the receptacle 30 is empty or when the dosing is finished, the butterfly valve 2 is brought into closed position, and the receptacle 30 is turned upright again and put down.
  • the clamping ring 35 is loosened and the dosing device, except the conical ring 28, is taken from the receptacle 30, after which the inner liner 33 is closed and removed, after which also the conical ring 28 is taken off and the outer liner 32 is removed. Thereafter, the dosing device is provided in the above- described manner on a new receptacle 30.
  • the receptacle 30 is stored away, whereas it is closed off by the butterfly valve 2 and possibly an additional cap which is placed upon the outer housing 23.
  • the dosing device described in the aforegoing does not only allow a very precise dosing of powders, but moreover can be connected to, and uncoupled from, the usual receptacles, possibly with one or two liners provided therein, in a simple manner.
  • the dosing device not necessarily has to comprise two vibrating mechanisms 3. One may be sufficient.
  • the excenter element 9 may comprise another vibrating mechanism than described. So, the excenter element 9 also can be driven by an electric motor.
  • the vibrating mechanism 3 does not necessarily have to be situated in an axle end, inasmuch as it ⁇ directly sets the butterfly valve vibrating.
  • the mechanism may be provided on the disc 7.
  • the butterfly valve 2 does not necessarily has to be turned manually by means of a handle 4.
  • the means for turning the butterfly valve 4 also may comprise a motor.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)

Abstract

L'invention concerne un dispositif de dosage destiné à doser une poudre. Ce dispositif de dosage comprend un robinet à papillon (2) supporté dans un compartiment de robinet (1), ainsi qu'un organe (4) destiné à faire tourner ledit robinet à papillon (2) dans le compartiment de robinet (1), au moins un mécanisme de vibration (3) étant monté sur ce robinet à papillon (2).
PCT/BE2001/000057 2000-03-31 2001-03-30 Dispositif de dosage WO2001075342A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU46256/01A AU4625601A (en) 2000-03-31 2001-03-30 Dosing device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2000/0229 2000-03-31
BE2000/0229A BE1013367A3 (nl) 2000-03-31 2000-03-31 Doseerinrichting.

Publications (1)

Publication Number Publication Date
WO2001075342A1 true WO2001075342A1 (fr) 2001-10-11

Family

ID=3896472

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BE2001/000057 WO2001075342A1 (fr) 2000-03-31 2001-03-30 Dispositif de dosage

Country Status (3)

Country Link
AU (1) AU4625601A (fr)
BE (1) BE1013367A3 (fr)
WO (1) WO2001075342A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1889797A1 (fr) * 2006-08-15 2008-02-20 Novindustra AG Dispositif de dosage
EP1970679A2 (fr) 2007-03-14 2008-09-17 Ucon AG Containersysteme Kg Station de vidage pour conteneur de produits en vrac dotée d'un conteneur de produits en vrac correspondant et procédé de vidage contrôlé de conteneurs de produits en vrac
WO2009040389A1 (fr) * 2007-09-25 2009-04-02 Nord-Micro Ao & Co. Ohg Soupape de sortie pour un avion
WO2014086811A1 (fr) * 2012-12-04 2014-06-12 Nestec S.A. Appareil et procédé de transfert et de mise sous pression de poudre
GB2605601A (en) * 2021-04-06 2022-10-12 Lpw Technology Ltd Improvements in or relating to powder handling

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3576264A (en) * 1968-11-09 1971-04-27 Still Fa Carl Coking furnace bunker construction
US3784061A (en) * 1971-01-25 1974-01-08 J Hogan Feeder valves

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3576264A (en) * 1968-11-09 1971-04-27 Still Fa Carl Coking furnace bunker construction
US3784061A (en) * 1971-01-25 1974-01-08 J Hogan Feeder valves

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1889797A1 (fr) * 2006-08-15 2008-02-20 Novindustra AG Dispositif de dosage
EP1970679A2 (fr) 2007-03-14 2008-09-17 Ucon AG Containersysteme Kg Station de vidage pour conteneur de produits en vrac dotée d'un conteneur de produits en vrac correspondant et procédé de vidage contrôlé de conteneurs de produits en vrac
DE102007013093A1 (de) 2007-03-14 2008-09-25 Ucon Ag Containersysteme Kg Entleerstation für Schüttgut-Container mit zugehörigem Schüttgut-Container und Verfahren zur kontrollierten Entleerung von Schüttgut-Containern
EP1970679A3 (fr) * 2007-03-14 2011-06-08 Ucon AG Containersysteme Kg Station de vidage pour conteneur de produits en vrac dotée d'un conteneur de produits en vrac correspondant et procédé de vidage contrôlé de conteneurs de produits en vrac
WO2009040389A1 (fr) * 2007-09-25 2009-04-02 Nord-Micro Ao & Co. Ohg Soupape de sortie pour un avion
WO2014086811A1 (fr) * 2012-12-04 2014-06-12 Nestec S.A. Appareil et procédé de transfert et de mise sous pression de poudre
CN104837752A (zh) * 2012-12-04 2015-08-12 雀巢产品技术援助有限公司 用于转移粉末和对粉末增压的设备和方法
AU2013354119B2 (en) * 2012-12-04 2017-04-27 Société des Produits Nestlé S.A. Apparatus and method for transferring and pressurizing powder
RU2651532C2 (ru) * 2012-12-04 2018-04-19 Нестек С.А. Устройство и способ передачи порошка и создания давления в нем
GB2605601A (en) * 2021-04-06 2022-10-12 Lpw Technology Ltd Improvements in or relating to powder handling
WO2022214797A1 (fr) * 2021-04-06 2022-10-13 Lpw Technology Ltd Améliorations dans la manipulation de poudre ou relatives à celle-ci

Also Published As

Publication number Publication date
AU4625601A (en) 2001-10-15
BE1013367A3 (nl) 2001-12-04

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