EP2019209B1 - Device and method for feeding substances - Google Patents

Device and method for feeding substances Download PDF

Info

Publication number
EP2019209B1
EP2019209B1 EP08018633A EP08018633A EP2019209B1 EP 2019209 B1 EP2019209 B1 EP 2019209B1 EP 08018633 A EP08018633 A EP 08018633A EP 08018633 A EP08018633 A EP 08018633A EP 2019209 B1 EP2019209 B1 EP 2019209B1
Authority
EP
European Patent Office
Prior art keywords
pump chamber
apex
chamber
frame
filter
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.)
Active
Application number
EP08018633A
Other languages
German (de)
French (fr)
Other versions
EP2019209A1 (en
Inventor
Frédéric jun. DIETRICH
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.)
Fydec Holding SA
Original Assignee
Fydec Holding SA
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 Fydec Holding SA filed Critical Fydec Holding SA
Publication of EP2019209A1 publication Critical patent/EP2019209A1/en
Application granted granted Critical
Publication of EP2019209B1 publication Critical patent/EP2019209B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F1/00—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped
    • F04F1/02—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped using both positively and negatively pressurised fluid medium, e.g. alternating

Definitions

  • the invention relates to a device for conveying flowable substances according to the preamble of claim 1 and a method thereof.
  • a device for the pneumatic conveying of powdered substances is to be taken with a container connected to a supply line and a discharge for the conveyed, which is separated by at least one plate-like filter element from a space connected to a vacuum line; the width of the filter element corresponds at most to the diameter of the container.
  • a substance of specific gravity of 0.1 to 15.0 g / cm 3 and with a particle size range between 0.1 to 300 .mu.m as conveyed is the ratio of the length of a pumping chamber forming container for temporarily receiving the conveyed to its inner Diameter between 0.5 and 10.0 and the plate-like filter element is provided between a vacuum line of a vacuum pump for sucking the conveyed material and the pumping chamber.
  • a conveying gas line to a conveying gas source both in the vacuum line and in the conveying gas line an automatic locking member is arranged in each case.
  • a conveyor device for plastic granules with a hose line protrudes, which dives at one end by means of a lance in a storage silo and the other protrudes through a filter support into a pipe socket which sits on the box-like inlet of a tangential intake opening of a plasticizing.
  • a suction chamber about the filter support a likewise penetrated by the hose line cover assembly is provided with a suction chamber. The latter has suction openings directed towards the pipe socket and is in operative connection with a nozzle system to which compressed air or compressed gas can be supplied as working medium.
  • the US 5265653 A shows a device for conveying substances according to the preamble of claim 1.
  • Such conveying devices are tailored to a specific product, that is to say to the conveying of powders or the conveying of liquid.
  • some diaphragm pumps can deliver powder and liquids, efficient powder handling is only possible to a limited extent, and only if the substance is specially adapted to the process.
  • suspensions are difficult in that the powder in a suspension tends to deposit in the tubes or shutters, resulting in blockage of the delivery system.
  • the inventor has set the goal to provide a device and a method of the type mentioned, which not only allow the delivery of products as different as liquids, powders and even suspensions or pastes with the same equipment, but also their volumetric dosage.
  • the inventive device comprises in a vertically elongated cylindrical pump chamber for conveying liquids, powders, suspensions and pastes in the upper region thereof means for separating liquid and powder with a filter element and a floating body disposed above as a sealing element, wherein the pump chamber in their at least one feed line and at least one extraction line for liquid and / or powder and / or suspension or paste are connected to the lower region and wherein at the outlet end of the pump chamber an outlet pipe inclined to its longitudinal axis (A) is arranged, into which the extraction line passes. Preference is given to several supply lines for several products.
  • the filter element which is preferably designed as a filter plate and intersects the longitudinal axis of the device, is arranged between the latter and the pump chamber; the filter element remote end of the device according to the invention is associated with the conveying gas line and the vacuum line.
  • a T-shaped connecting pipe with two connecting sections each containing a shut-off valve for the conveying gas line and the vacuum line should protrude from a top wall of the device.
  • the pump chamber should be connected to at least one inlet valve and to an outlet valve for the substance.
  • the device is designed as an axial ridge chamber of the pump chamber of the device and provided axially movable in this and is thereby sealingly surrounded by at least one annular seal of the pump chamber.
  • This ring seal is according to the invention arranged in the cylindrical pump chamber itself or it extends in an annular end collar whose diameter is shorter than the diameter of the pump chamber.
  • a ring section widening in a funnel-like manner should be formed between the end collar and the pump chamber, of which preferably a frame for axially guiding the movable ridge chamber projects.
  • the filter element which is preferably designed as a filter plate
  • the filter element is assigned to a base section of the ridge chamber of the device which is axially movable in the pump chamber.
  • the filter plate is defined according to the invention on the perforated base portion of the ridge chamber and projects beyond this side;
  • the - advantageously arranged in a holder - filter plate should be surrounded at its edge by at least one sealing bead, on the other hand, the inner surface of the pump chamber rests.
  • the device At the outlet end of the pump chamber, the device according to the invention has an outlet tube inclined to its longitudinal axis, which preferably adjoins an axial connecting tube of the base region of the pump chamber.
  • at least one vibrator should be mounted on the outlet pipe.
  • This inclined outlet pipe opens into a - preferably axially parallel to the pump chamber - delivery pipe;
  • a closure element is associated with the mouth region and at least one outlet valve is assigned to the free end of the conveying tube.
  • the closure element actuates a closing plate which, in the closed position, covers the mouth of the outlet tube. This closing plate is designed so that its position can be selected; by partially closing or opening after this choice, an exact dosage of the product can be adjusted.
  • a pump chamber with a flat filter is attached tangentially to a dosing unit with venting possibility and the lateral pump body connected to the vacuum and pressure source; it contains a tangential entry with shut-off unit.
  • a vibration device is attached laterally at the rejuvenation of the pump chamber.
  • a sliding disc is provided, which can be opened completely or only up to a selectable gap size to allow dosing.
  • the metering body is connected via a valve to a pressure source, and at the lower end of the metering a shut-off unit is provided. On the other side is an open valve to the atmosphere; So it is possible to vent.
  • the pump body can now be filled according to the known principle / cycle with product and the sliding disc can be opened completely or only partially to dose or to drain product.
  • the vibration unit can be activated. If the shut-off unit is opened, the product passes into the underlying container, a reactor, dryer o.ä. can be.
  • the filter of the pump body can be cleaned by a pressure pulse, this possibility also exists with the dosing. If the contents of the pump body are emptied into the metering body, the displaced air volume escapes via the valve open to the atmosphere.
  • the device is defined as a ridge frame in the head region of the pump chamber and at a distance from the filter element.
  • This cage-like ridge frame consists of iw axis-parallel rods, which are optionally deformed at a distance from their free end in each case so that above a lower base portion extends an upper frame portion; its diameter is shorter than the diameter of the lower frame section.
  • the filter element is to be stored as a filter plate in a frame and this fixed in the pump chamber between two container sections.
  • the ridge frame is fixed firstward in a roof ring and provided at its lower end with an approximately parallel to the filter plate extending perforated plate or grid, a sieve or a filter. The latter is also in distance to the filter plate.
  • the floating member is advantageously associated with a sealing ring in the ridge chamber or ridge frame; the open ring center can be closed by the axial approach of the floating organ or its ball end by its axial approach; Sealing ring and floating body form a valve of two bodies associated with each other, and the open center of the sealing ring can be covered by a ball end of the float, so the valve closed.
  • the floating member has at least one ball end with the cross section of the ridge chamber corresponding diameter.
  • the floating member on two ball ends which are connected by an axial rod as a tubular part - acting as a dumbbell.
  • the lower ball end is with a diameter of 10 to 100 mm, preferably 20 to 80 mm equipped.
  • the total length of the ridge chamber according to the invention consists of about two thirds of its lower portion and about one third of the upper Section together; the length of the pump chamber should preferably be between 10 and 1000 mm, preferably 50 and 800 mm or 60 and 100 mm with a diameter of 5 to 500 mm, preferably of 200 mm.
  • the chamber according to the invention can be made of different materials for conveying aggressive or sensitive products such as stainless steel, Hastelloy, plastic, glass, enamel, and this with coating.
  • the system according to the invention consists of a calibrated cylindrical chamber with a lateral access provided with a butterfly valve; another closure valve is attached to the bottom outlet side of the apparatus.
  • a system for separating liquid and powder - a float with a filter - installed At the upper part of the apparatus is a system for separating liquid and powder - a float with a filter - installed.
  • This system can be fixed or mobile.
  • a lid closes the whole thing. It is connected to a pressure and a vacuum source, each equipped with shut-off valves.
  • the lid includes an O-ring at the top, which the float applies to close the system when aspirating fluid.
  • the system according to the invention works - controlled by a control box - automatically.
  • the vacuum-side shut-off valve and the inlet valve are opened; with the help of the negative pressure, the liquid is sucked through the inlet pipe connected to the pump chamber.
  • the liquid level rises until the float is lifted and abuts the sealing ring in the filter chamber to break the connection to the vacuum source; by the negative pressure, the tightness of the mating on the sealing ring and float is guaranteed.
  • the inlet valve and the vacuum valve are closed and the pressure valve and the exhaust valve opened. Then the pump chamber is emptied by the liquid is pressed out by pressure. After a few seconds, the pressure and discharge valves close again and the cycle can begin again.
  • the vacuum-side shut-off valve and the inlet valve are opened and sucked by means of the negative pressure, the powder through the connected to the pump chamber line system or inlet pipe.
  • the pump chamber fills with powder.
  • the filter in its upper area prevents fine particles from entering the vacuum system.
  • the float remains in its low position as the velocity of the conveying gas is insufficient to raise it.
  • the pump chamber is emptied by the pressure which simultaneously cleans the filter in countercurrent, and after a few seconds the pressure and discharge valves are closed again. The cycle can start again.
  • a suspension If a suspension is to be conveyed, the latter is sucked in under reduced pressure through the pipe system or inlet pipe connected to the pump chamber, and by means of the filter in the upper part of the pump chamber the particles of the suspension are separated from the liquid and fouling of the float is prevented.
  • the liquid level rises until the float is lifted and closes the open annulus of the sealing ring to break the connection to the vacuum source.
  • the inlet valve and the vacuum valve are closed and the pressure valve and the outlet valve open.
  • the pump chamber is emptied by the powder is pressed out by pressure, which simultaneously cleans the filter in countercurrent. After a few seconds will be Pressure valve and outlet valve closed again; the cycle can start again.
  • This system is also intended to be used for the volumetric dosing of these different products; because the inventive system for separating liquid and powder can be moved in the interior of the pump chamber, so as to change the volume.
  • the volume change allows the volumetric dosing.
  • the device between the conveying of two different powders can be cleaned by the passage of liquid, but especially by suction of cleaning liquid.
  • a method for the pneumatic conveying of flowable substances using the device according to the invention with both particulate matter and liquid or suspension or pastes are transferred simultaneously from one container to another or a mixture of liquid and particulate substances which is preferably from 0.01 to 99.99% liquid and 99% to 0.01% particulate, or from 5.0% to 95.0% liquid and 95.0% to 5.0% particulate matter.
  • the cleaning can be done by operating the device in an empty state.
  • the use of the subject invention is both in the pharmaceutical industry possible as well as in the chemical industry, paint and Lackesorb and in the food industry.
  • a conveying device 30 connected to the latter by a vertical connecting pipe 12.
  • a blocking element 16 is provided on a collar 14, above which the funnel-shaped base region 32 of a cylindrical pump chamber 34 of the conveying device 30 can be seen.
  • From this goes - with the interposition of an inlet valve 18 - an inlet pipe or a supply line 20 from.
  • This is connected to the conveyor 30 remote end to branch lines 22, 22 f , 22 s , each of which a storage container 24 for Powder or a storage container 26 are assigned for liquids or a storage container 28 for a suspension.
  • branch lines 22, 22 f , 22 s each of which a storage container 24 for Powder or a storage container 26 are assigned for liquids or a storage container 28 for a suspension.
  • one of those flowable substances flows in the direction of flow x of the conveying device 30.
  • the resting on a frame 23 powder container 24 is here equipped with a funnel-shaped outlet socket 25, the other two storage containers 26, 28 are designed like a barrel.
  • a perforated base portion 40 of the ridge chamber 38 is indicated, at its free mouth edge a transverse to the device longitudinal axis
  • a arranged filter element 44 (filter or a filter plate) connects.
  • the latter is surrounded by a sealing bead 46, which, like that annular seal 47, conforms outwardly to the inner surface 33 of the pumping chamber 34 even during a vertical movement of the ridge chamber 38.
  • a sealing ring 48 which bears against its inside surface 33, can be seen, whose open ring center 49 is assigned a vertically or axially guided floating member 50.
  • the cross section of its - connected by a rod 51 - ball ends 52 is greater than the inside diameter of the open ring center 49 of that Abdichtringes 48, so that accordingly Fig. 2 - Is able to be sealed by a ball end 52.
  • Fig. 3 is the open state of the sealing ring 48 outlined; which forms a kind of valve with the floating member 50.
  • the left-hand line 55 of the connecting pipe 54 is assigned as conveying gas line a compressed air or gas source 58 of more than 0.3 bar and serving as a vacuum line right line 56, a vacuum pump 60, for example, a negative pressure of ⁇ 500 mbar.
  • the cylindrical pump chamber 34 of the conveyor 30 a of Fig. 2 goes up into a ring portion 37 of length a 1 with inwardly inclined wall surface, to which a cylindrical end collar 37 e of narrow diameter e 1 followed .
  • the annular seal 47 sits for the ridge chamber 38 a within this end collar 37 e .
  • the ridge chamber 38 a is here surrounded by a frame 62, the base feet 64 sit on the inclined outer surface of that ring portion 37.
  • the base feet 64 protrude guide sections 65 and achsparallele rods 66 with radial struts 68, which carry the axially movable ridge chamber 38 a ; thanks to a - not shown - pneumatic drive, the latter can be adjusted in height in the frame 62.
  • the filter plate 44 stored here in a mechanical support 42 which is encompassed by the above-described sealing bead 46.
  • the base region 32 forms a tip 31, to which a removal line 21 with integrated outlet valve 19 connects.
  • the inventive system for separating liquid and powder thus has a - in a guide aid movable up and down - floating organ or a float 50 with associated filter element 44 in the upper region of the conveyor 30, 30 a , closed by a cover 36 is.
  • This is connected to at least one pressure source 58 and at least one vacuum source 60.
  • a sealing ring 48 is provided below the lid 36 and in the upper region of the ridge chamber 38, 38 a , which the float 50 applies to close the system when sucking liquid in the flow direction x.
  • the automatic system is controlled by a control box and works in the following way:
  • This system is also to be used for the volumetric dosing of these different products; because the system according to the invention for the separation of liquid and powder is displaced in the interior 35 of the pump chamber 34, the volume of which changes.
  • the sealing bead 46 and the annular seal 47 of the separation system allow its displacement while sealing the pump chamber 34 out, the volume change allows the volumetric dosing.
  • the system according to the invention or its organs can be movable or fixed.
  • the latter is an example Fig. 5, 6 Reference is made; in a can-like device 80 of the Fig. 5 stores a filter plate 44 a in one - outside of a cylinder wall 82nd the device 80 this surrounding - ring-like frame 84 which is held by two frame plates 86, 86 t . These collar from the side and can be so by laying on a not shown - abutment example, by means of screw holes 87 enforcing screws - set.
  • a cylindrical container portion 88 On the upper frame plate 86 rests a cylindrical container portion 88, which is closed by a dome cover 90 with a central opening 91 of the diameter d 1 surrounding - Firstkragen 92.
  • the latter is seated a roof ring 94 with outwardly inclined edge surface 95, which in turn contains a central opening 96 of small diameter d 2 , in which a Abdichtring 48 can be seen and above this a Zu Concretestutzen 98 with that opening 96 invitedtzendem interior for connection of the connection pipe 54 with the conveying gas line 55 and vacuum line 56, ie for positive and negative pressure.
  • each bar 102 of the ridge frame 100 preferably corresponds approximately to the diameter b of the bar 50 connecting the two ball ends 52 of the float 50 of about 10 mm.
  • the free ends 104 of the bars 102 which define an inner diameter f of a base section 105 of the length g of the ridge frame, are attached near the frame 84 and parallel to this perforated plate 110.
  • the rod 102 At that distance g to its lower rod end 104 and the perforated plate 110 is the rod 102 to a short length g 1 as a rod portion 106 inclined at an angle w 1 of about 30 ° achs kauts, so that the inner diameter f 1 of the upward upper frame portion 108 of the axial length g 2 is shorter than the above-mentioned diameter f.
  • the length g 2 here is also shorter than half the length g of the base portion 104.
  • a likewise small length g 3 offer the end portions 107 of the bars 102, which are inclined in opposite directions to those bar sections 106 outwardly and on the roof ring 94 inside.
  • the pump chamber 34 b of Fig. 6 differs from the pump chamber 34 a of Fig. 5 especially by a flat ridge cover 89, the inside of the sealing ring 48 is assigned; this is between the inclined end portions 107 of the ridge frame 100th
  • the ball ends 52 and 52 t whose wall thickness measures, for example, 0.6 mm, lie loosely in the ridge frame 100, but may also abut the rods 102 in the base section 105 or in the upper frame section 108 on the inside in the region of their respective equator 53, so that the float 50 a is guided axially.
  • When closing closes - as stated above and in Fig. 6 indicated - the upper end of the ball 52 to the sealing ring 48 and thus closes the open ring center 49.
  • perforated plate or perforated grille 110 limits the sinking path of the float 50, 50 a .

Abstract

The device has an arrangement (38) for separating liquid and powder, where the arrangement has a filter element (44) and a floating unit (50) arranged above as a sealing element. The arrangement is attached in the upper region in a vertically elongated cylindrical pump chamber (34) for pneumatically feeding liquids, powders, suspensions and pastes. The pump chamber is connected in its lower region to a supply line (20) and to an extraction line (12) for liquid, powder, suspension or paste. Multiple supply lines for multiple products are selected. An independent claim is also included for a method for pneumatically feeding fluid materials, where powder and liquid, suspensions or paste are transferred by a container into another at the same time.

Description

Die Erfindung betrifft eine Vorrichtung zum Fördern von fließfähigen Stoffen nach dem Oberbegriff des Patentanspruches 1 sowie ein Verfahren dazu.The invention relates to a device for conveying flowable substances according to the preamble of claim 1 and a method thereof.

Der EP 0 937 004 A ist eine Vorrichtung zum pneumatischen Fördern pulverförmiger Stoffe mit einem an eine Zuführleitung sowie einen Austrag für das Fördergut angeschlossenen Behälter zu entnehmen, der durch zumindest ein plattenartiges Filterelement von einem an eine Vakuumleitung angeschlossenen Raum getrennt ist; die Weite des Filterelements entspricht höchstens dem Durchmesser des Behälters. Zum Fördern eines Stoffes des spezifischen Gewichtes von 0,1 bis 15,0 g/cm3 sowie mit einem Korngrößenbereich zwischen 0,1 bis 300 µm als Fördergut liegt das Verhältnis der Länge des eine Pumpkammer bildenden Behälters zur zeitweiligen Aufnahme des Fördergutes zu seinem inneren Durchmesser zwischen 0,5 und 10,0 und das plattenartige Filterelement ist zwischen einer Vakuumleitung einer Vakuumpumpe zum Ansaugen des Fördergutes und der Pumpkammer vorgesehen. An den an die Vakuumpumpe angeschlossenen Raum schließt eine Fördergasleitung einer Fördergasquelle an, und sowohl in der Vakuumleitung als auch in der Fördergasleitung ist jeweils ein automatisches Sperrorgan angeordnet.Of the EP 0 937 004 A a device for the pneumatic conveying of powdered substances is to be taken with a container connected to a supply line and a discharge for the conveyed, which is separated by at least one plate-like filter element from a space connected to a vacuum line; the width of the filter element corresponds at most to the diameter of the container. For conveying a substance of specific gravity of 0.1 to 15.0 g / cm 3 and with a particle size range between 0.1 to 300 .mu.m as conveyed is the ratio of the length of a pumping chamber forming container for temporarily receiving the conveyed to its inner Diameter between 0.5 and 10.0 and the plate-like filter element is provided between a vacuum line of a vacuum pump for sucking the conveyed material and the pumping chamber. At the space connected to the vacuum pump includes a conveying gas line to a conveying gas source, and both in the vacuum line and in the conveying gas line an automatic locking member is arranged in each case.

Aus der EP 0 538 711 A geht eine Fördervorrichtung etwa für Kunststoffgranulate mit einer Schlauchleitung hervor, die einends mittels einer Lanze in einen Speichersilo eintaucht sowie andernends durch einen Filterträger hindurch in einen Rohrstutzen einragt, der auf dem kastenartigen Einlass einer tangentialen Einzugsöffnung eines Plastifizierzylinders sitzt. Über dem Filterträger ist eine ebenfalls von der Schlauchleitung durchsetzte Deckel-Baugruppe mit einer Saugkammer vorgesehen. Letztere weist zum Rohrstutzen gerichtete Saugöffnungen auf und steht mit einem Düsensystem in Wirkverbindung, dem Druckluft oder Druckgas als Arbeitsmedium zugeführt werden kann. In der Saugkammer wird ein relativ hoher Unterdruck erzeugt, der sich durch die Saugöffnungen und die Filter in den Rohrstutzen sowie von dort aus durch die Schlauchleitung bis in den Speichersilo fortpflanzt. Jenes Arbeitsmedium soll durch Erhöhung seiner Geschwindigkeit im Fördergut einen so hohen Druck erzeugen, dass die Feststoffe unter Vermischung mit einem Saugluftstrom zu jenem kastenartigen Einlass gesaugt werden. An den Filtern werden die Feststoffe vom Saugluftstrom abgetrennt und dieser mit dem Arbeitsmedium gemischt. Eine Filterreinigung kann während des Prozesses nicht durchgeführt werden.From the EP 0 538 711 A For example, a conveyor device for plastic granules with a hose line protrudes, which dives at one end by means of a lance in a storage silo and the other protrudes through a filter support into a pipe socket which sits on the box-like inlet of a tangential intake opening of a plasticizing. About the filter support a likewise penetrated by the hose line cover assembly is provided with a suction chamber. The latter has suction openings directed towards the pipe socket and is in operative connection with a nozzle system to which compressed air or compressed gas can be supplied as working medium. In the suction chamber is a produces relatively high negative pressure, which propagates through the suction openings and the filter in the pipe socket and from there through the hose into the storage silo. By increasing its velocity in the material to be conveyed, that working medium should generate such a high pressure that the solids are sucked into that box-type inlet while being mixed with a suction air stream. At the filters, the solids are separated from the suction air stream and this mixed with the working fluid. Filter cleaning can not be performed during the process.

Die US 5265653 A zeigt eine Vorrichtung zum Fördern von Stoffen gemäß dem Oberbegriff des Anspruchs 1.The US 5265653 A shows a device for conveying substances according to the preamble of claim 1.

Nach dem Stand der Technik sind derartige Fördervorrichtungen auf ein bestimmtes Produkt zugeschnitten, also auf das Fördern von Pulvern oder das Fördern von Flüssigkeit. Zwar können einige Diaphragmapumpen Pulver und Flüssigkeiten fördern, jedoch ist ein effizientes Behandeln von Pulver nur in geringem Maße möglich sowie nur dann, wenn die Substanz das Pulver auf den Prozess besonders abgestimmt ist.According to the state of the art, such conveying devices are tailored to a specific product, that is to say to the conveying of powders or the conveying of liquid. Although some diaphragm pumps can deliver powder and liquids, efficient powder handling is only possible to a limited extent, and only if the substance is specially adapted to the process.

Das Fördern von Suspensionen ist insofern schwierig, als das Pulver in einer Suspension dazu neigt, sich in den Rohren oder Verschlussklappen abzulagern, was zu einer Blockierung des Fördersystems führt.The delivery of suspensions is difficult in that the powder in a suspension tends to deposit in the tubes or shutters, resulting in blockage of the delivery system.

In Kenntnis dieser Gegebenheiten hat sich der Erfinder das Ziel gesetzt, eine Vorrichtung und ein Verfahren der eingangs genannten Art zu schaffen, die nicht nur das Fördern so unterschiedlicher Produkte wie Flüssigkeiten, Pulver und sogar Suspensionen bzw. Pasten mit derselben Ausstattung ermöglichen, sondern auch deren volumetrische Dosierung.Knowing these facts, the inventor has set the goal to provide a device and a method of the type mentioned, which not only allow the delivery of products as different as liquids, powders and even suspensions or pastes with the same equipment, but also their volumetric dosage.

Zur Lösung dieser Aufgabe führt die Lehre des unabhängigen Anspruches; die Unteransprüche geben günstige Weiterbildungen an. Bei angegebenen Benennungsbereichen sollen auch innerhalb der genannten Grenzen liegende Werte als Grenzwerte offenbart und beliebig einsetzbar sein.To achieve this object, the teaching of the independent claim; the dependent claims indicate favorable developments. For given naming ranges should also within the mentioned limits as limits and can be used arbitrarily.

Die erfindungsgemäße Vorrichtung weist in einer vertikal gestreckten zylindrischen Pumpenkammer zum Fördern von Flüssigkeiten, Pulver, Suspensionen und Pasten in deren oberen Bereich eine Einrichtung zum Trennen von Flüssigkeit und Pulver mit einem Filterelement und einem darüber angeordneten Schwimmorgan als Dichtelement auf, wobei an die Pumpenkammer in ihrem unteren Bereich zumindest eine Zuführleitung und wenigstens eine Entnahmeleitung für Flüssigkeit und/oder Pulver und/oder Suspension bzw. Paste angeschlossen sind und wobei am Auslaufende der Pumpenkammer ein zu deren Längsachse (A) geneigtes Auslassrohr angeordnet ist, in welches die Entnahmeleitung übergeht. Bevorzugt werden mehrere Zuführleitungen für mehrere Produkte.The inventive device comprises in a vertically elongated cylindrical pump chamber for conveying liquids, powders, suspensions and pastes in the upper region thereof means for separating liquid and powder with a filter element and a floating body disposed above as a sealing element, wherein the pump chamber in their at least one feed line and at least one extraction line for liquid and / or powder and / or suspension or paste are connected to the lower region and wherein at the outlet end of the pump chamber an outlet pipe inclined to its longitudinal axis (A) is arranged, into which the extraction line passes. Preference is given to several supply lines for several products.

Als günstig hat es sich erwiesen, dass das bevorzugt als Filterplatte gestaltete, die Längsachse der Einrichtung querende Filterelement zwischen dieser und der Pumpenkammer angeordnet ist; das dem Filterelement ferne Ende der erfindungsgemäßen Einrichtung ist der Fördergasleitung und der Vakuumleitung zugeordnet. Dazu soll von einer Kopfwand der Einrichtung ein T-förmiges Anschlussrohr mit zwei jeweils ein Absperrventil enthaltenden Anschlussabschnitten für die Fördergasleitung und die Vakuumleitung abragen. Anderseits soll die Pumpenkammer an zumindest ein Einlassventil sowie an ein Auslassventil für den Stoff angeschlossen sein.It has proved to be favorable that the filter element, which is preferably designed as a filter plate and intersects the longitudinal axis of the device, is arranged between the latter and the pump chamber; the filter element remote end of the device according to the invention is associated with the conveying gas line and the vacuum line. For this purpose, a T-shaped connecting pipe with two connecting sections each containing a shut-off valve for the conveying gas line and the vacuum line should protrude from a top wall of the device. On the other hand, the pump chamber should be connected to at least one inlet valve and to an outlet valve for the substance.

Als besonders günstig hat sich eine Ausgestaltung erwiesen, bei der die Einrichtung als axiale Firstkammer der Pumpenkammer der Vorrichtung ausgebildet sowie in dieser axial bewegbar vorgesehen und dabei von wenigstens einer Ringdichtung der Pumpenkammer dichtend umfangen ist. Diese Ringdichtung ist erfindungsgemäß in der zylindrischen Pumpenkammer selbst angeordnet oder sie verläuft in einem ringartigen Endkragen, dessen Durchmesser kürzer ist als der Durchmesser der Pumpenkammer.To be particularly favorable, an embodiment has been found, in which the device is designed as an axial ridge chamber of the pump chamber of the device and provided axially movable in this and is thereby sealingly surrounded by at least one annular seal of the pump chamber. This ring seal is according to the invention arranged in the cylindrical pump chamber itself or it extends in an annular end collar whose diameter is shorter than the diameter of the pump chamber.

Im letztgenannten Fall soll zwischen Endkragen und Pumpenkammer ein sich zu dieser trichterartig erweiternder Ringabschnitt angeformt sein, von dem bevorzugt ein Gestell zum axialen Führen der bewegbaren Firstkammer aufragt.In the latter case, a ring section widening in a funnel-like manner should be formed between the end collar and the pump chamber, of which preferably a frame for axially guiding the movable ridge chamber projects.

Im Rahmen der Erfindung liegt es, dass das -- wie gesagt: bevorzugt als Filterplatte gestaltete -- Filterelement einem Sockelabschnitt der in der Pumpenkammer axial beweglichen Firstkammer der Vorrichtung zugeordnet ist. Die Filterplatte ist erfindungsgemäß an dem perforierten Sockelabschnitt der Firstkammer festgelegt und überragt diese seitlich; dazu soll die -- vorteilhafterweise in einer Halterung angeordnete -- Filterplatte an ihrem Rand von zumindest einem Dichtungswulst umfangen sein, der anderseits der Innenfläche der Pumpenkammer anliegt.It is within the scope of the invention that the filter element, which is preferably designed as a filter plate, is assigned to a base section of the ridge chamber of the device which is axially movable in the pump chamber. The filter plate is defined according to the invention on the perforated base portion of the ridge chamber and projects beyond this side; For this purpose, the - advantageously arranged in a holder - filter plate should be surrounded at its edge by at least one sealing bead, on the other hand, the inner surface of the pump chamber rests.

Die erfindungsgemäße Vorrichtung weist am Auslaufende der Pumpenkammer ein zu deren Längsachse geneigtes Auslassrohr auf, das bevorzugt an ein axiales Anschlussrohr des Sockelbereiches der Pumpenkammer anschließt. Der besseren Förderung halber soll am Auslassrohr zumindest ein Vibrator angebracht sein. Dieses geneigte Auslassrohr mündet in ein -- bevorzugt zur Pumpenkammer achsparalleles -- Förderrohr; dem Mündungsbereich ist zudem ein Verschlusselement und dem freien Ende des Förderrohres wenigstens ein Auslassventil zugeordnet. Das Verschlusselement betätigt eine Schließplatte, welche in Schließstellung die Mündung des Auslassrohres überdeckt. Diese Schließplatte ist so ausgebildet, dass ihre Stellung gewählt werden kann; durch teilweises Schließen bzw. Öffnen nach dieser Wahl kann eine genaue Dosierung des Produktes eingestellt werden.At the outlet end of the pump chamber, the device according to the invention has an outlet tube inclined to its longitudinal axis, which preferably adjoins an axial connecting tube of the base region of the pump chamber. For better promotion, at least one vibrator should be mounted on the outlet pipe. This inclined outlet pipe opens into a - preferably axially parallel to the pump chamber - delivery pipe; In addition, a closure element is associated with the mouth region and at least one outlet valve is assigned to the free end of the conveying tube. The closure element actuates a closing plate which, in the closed position, covers the mouth of the outlet tube. This closing plate is designed so that its position can be selected; by partially closing or opening after this choice, an exact dosage of the product can be adjusted.

Hier ist eine Pumpenkammer mit flachem Filter tangential an einer Dosiereinheit mit Entlüftungsmöglichkeit angebracht und der seitliche Pumpkörper an Vakuum- und Druckquelle angeschlossen; er enthält einen tangentialen Eintritt mit Absperreinheit. Seitlich an der Verjüngung der Pumpenkammer ist eine Vibrationseinrichtung angebracht. An der Stelle, an welcher der Pumpkörper in den Dosierkörper mündet, ist eine verschiebbare Scheibe vorgesehen, die komplett oder nur bis zu einer wählbaren Spaltgröße geöffnet werden kann, um ein Dosieren zu ermöglichen.Here a pump chamber with a flat filter is attached tangentially to a dosing unit with venting possibility and the lateral pump body connected to the vacuum and pressure source; it contains a tangential entry with shut-off unit. Laterally at the rejuvenation of the pump chamber a vibration device is attached. At the point at which the pump body opens into the dosing, a sliding disc is provided, which can be opened completely or only up to a selectable gap size to allow dosing.

Der Dosierkörper ist über ein Ventil an eine Druckquelle angeschlossen, und am unteren Ende des Dosierkörpers ist eine Absperreinheit vorgesehen. Auf der anderen Seite befindet sich ein zur Atmosphäre hin offenes Ventil; es ist also eine Entlüftung möglich. Der Pumpkörper kann nun nach dem bekannten Prinzip/Zyklus mit Produkt befüllt sowie die verschiebbare Scheibe komplett oder nur teilweise geöffnet werden, um zu dosieren oder um Produkt abzulassen. Um ein Feindosieren in den darunter liegenden Behälter zu ermöglichen, kann die Vibrationseinheit aktiviert werden. Wird die Absperreinheit geöffnet, gelangt das Produkt in den darunter liegenden Behälter, der ein Reaktor, Trockner o.ä. sein kann. Der Filter des Pumpkörpers kann durch einen Druckimpuls abgereinigt werden, diese Möglichkeit besteht auch beim Dosierkörper. Wird der Inhalt des Pumpkörpers in den Dosierkörper entleert, entweicht das verdrängte Luftvolumen über das zur Atmosphäre hin offene Ventil.The metering body is connected via a valve to a pressure source, and at the lower end of the metering a shut-off unit is provided. On the other side is an open valve to the atmosphere; So it is possible to vent. The pump body can now be filled according to the known principle / cycle with product and the sliding disc can be opened completely or only partially to dose or to drain product. To enable fine dosing into the underlying container, the vibration unit can be activated. If the shut-off unit is opened, the product passes into the underlying container, a reactor, dryer o.ä. can be. The filter of the pump body can be cleaned by a pressure pulse, this possibility also exists with the dosing. If the contents of the pump body are emptied into the metering body, the displaced air volume escapes via the valve open to the atmosphere.

Im Rahmen der Erfindung liegt eine weitere Ausgestaltung, bei der die Einrichtung als Firstgestell im Kopfbereich der Pumpenkammer und in Abstand zum Filterelement festgelegt ist. Dieses käfigartige Firstgestell besteht aus i.w. achsparallelen Stäben, die gegebenenfalls in Abstand zu ihrem freien Ende jeweils so verformt sind, dass oberhalb eines unteren Sockelabschnitts ein oberer Gestellabschnitt verläuft; dessen Durchmesser ist kürzer als der Durchmesser des unteren Gestellabschnittes. Als günstig hat es sich erwiesen, die Gesamtlänge des Firstgestells etwa zu zwei Dritteln aus ihrem unteren Gestellabschnitt und etwa zu einem Drittel aus dem oberen Gestellabschnitt bestehen zu lassen.In the context of the invention is a further embodiment, in which the device is defined as a ridge frame in the head region of the pump chamber and at a distance from the filter element. This cage-like ridge frame consists of iw axis-parallel rods, which are optionally deformed at a distance from their free end in each case so that above a lower base portion extends an upper frame portion; its diameter is shorter than the diameter of the lower frame section. As low, it has been proven to make the total length of the ridge frame about two-thirds from its lower frame portion and about one-third from the upper frame section.

Bei dieser Vorrichtung soll das Filterelement als Filterplatte in einem Rahmen gelagert und dieser in der Pumpenkammer zwischen zwei Behälterabschnitten festgelegt sein.In this device, the filter element is to be stored as a filter plate in a frame and this fixed in the pump chamber between two container sections.

Nach einem weiteren Merkmal der Erfindung ist das Firstgestell in einem Dachring firstwärts festgelegt sowie an seinem unteren Ende mit einem etwa parallel zur Filterplatte verlaufenden Lochblech oder -gitter, einem Sieb oder einem Filter versehen. Letzteres liegt zudem in Abstand zur Filterplatte.According to a further feature of the invention, the ridge frame is fixed firstward in a roof ring and provided at its lower end with an approximately parallel to the filter plate extending perforated plate or grid, a sieve or a filter. The latter is also in distance to the filter plate.

Zur Abdichtfunktion ist das Schwimmorgan vorteilhafterweise einem Abdichtring in der Firstkammer oder im Firstgestell zugeordnet; das offene Ringzentrum kann durch das axiale Heranführen des Schwimmorgans bzw. seines Kugelendes durch dessen axiales Heranführen geschlossen werden; Abdichtring und Schwimmorgan bilden ein Ventil aus zwei einander zugeordneten Körpern, und das offene Zentrum des Abdichtringes kann von einem Kugelende des Schwimmkörpers überdeckt, also das Ventil geschlossen, werden.For sealing function, the floating member is advantageously associated with a sealing ring in the ridge chamber or ridge frame; the open ring center can be closed by the axial approach of the floating organ or its ball end by its axial approach; Sealing ring and floating body form a valve of two bodies associated with each other, and the open center of the sealing ring can be covered by a ball end of the float, so the valve closed.

Bei einer anderen erfinderischen Ausgestaltung der Vorrichtung weist das Schwimmorgan wenigstens ein Kugelende mit dem Querschnitt der Firstkammer entsprechendem Durchmesser auf.In another inventive embodiment of the device, the floating member has at least one ball end with the cross section of the ridge chamber corresponding diameter.

In beiden beschriebenen Ausgestaltungen weist das Schwimmorgan zwei Kugelenden auf, die durch einen axialen Stab als rohrförmigem Teil -- wie eine Hantel wirkend -- verbunden sind.In both embodiments described, the floating member on two ball ends, which are connected by an axial rod as a tubular part - acting as a dumbbell.

Als günstig haben sich Durchmesser von 15 bis 90 mm, vorzugsweise 30 bis 70 mm, bei dem gegen das Vakuumsystem abdichtenden oberen Kugelende erwiesen, das untere Kugelende ist mit einem Durchmesser von 10 bis 100 mm, vorzugsweise 20 bis 80 mm, ausgestattet. Dazu setzt sich die Gesamtlänge der Firstkammer erfindungsgemäß aus etwa zwei Dritteln ihres unteren Abschnittes und etwa einem Drittel des oberen Abschnittes zusammen; die Länge der Pumpenkammer soll bevorzugt zwischen 10 und 1000 mm, vorzugsweise 50 und 800 mm bzw. 60 und 100 mm liegen bei einem Durchmesser von 5 bis 500 mm, vorzugsweise von 200 mm.As low diameter of 15 to 90 mm, preferably 30 to 70 mm, have proven in the sealing against the vacuum system upper ball end, the lower ball end is with a diameter of 10 to 100 mm, preferably 20 to 80 mm equipped. For this purpose, the total length of the ridge chamber according to the invention consists of about two thirds of its lower portion and about one third of the upper Section together; the length of the pump chamber should preferably be between 10 and 1000 mm, preferably 50 and 800 mm or 60 and 100 mm with a diameter of 5 to 500 mm, preferably of 200 mm.

Die erfindungsgemäße Kammer kann aus unterschiedlichen Materialien zum Fördern von aggressiven oder empfindlichen Produkten hergestellt werden wie Edelstahl, Hastelloy, Kunststoff, Glas, Emaille, und dies mit Beschichtung.The chamber according to the invention can be made of different materials for conveying aggressive or sensitive products such as stainless steel, Hastelloy, plastic, glass, enamel, and this with coating.

Das erfindungsgemäße System besteht aus einer kalibrierten, zylindrischen Kammer mit einem seitlichen Zugang, der mit einer Absperrklappe bzw. einem Verschlussventil ausgestattet ist; ein weiteres Verschlussventil ist an der bodenwärtigen Austrittseite des Apparates angebracht.The system according to the invention consists of a calibrated cylindrical chamber with a lateral access provided with a butterfly valve; another closure valve is attached to the bottom outlet side of the apparatus.

Am oberen Teil des Apparates ist ein System zum Trennen von Flüssigkeit und Pulver -- aus einem Schwimmer mit einem Filter -- installiert. Dieses System kann feststehend oder beweglich sein. Ein Deckel schließt das Ganze. Er ist mit einer Druck- und einer Unterdruckquelle verbunden, die jeweils mit Absperrventilen ausgestattet sind. Der Deckel umfasst am oberen Teil einen O-Ring, an welchen sich der Schwimmer anlegt, um das System beim Ansaugen von Flüssigkeit zu verschließen.At the upper part of the apparatus is a system for separating liquid and powder - a float with a filter - installed. This system can be fixed or mobile. A lid closes the whole thing. It is connected to a pressure and a vacuum source, each equipped with shut-off valves. The lid includes an O-ring at the top, which the float applies to close the system when aspirating fluid.

Das erfindungsgemäße System arbeitet -- durch einen Schaltkasten gesteuert -- automatisch. Zum Fördern von Flüssigkeit werden das unterdruckseitige Absperrventil und das Einlassventil geöffnet; mit Hilfe des Unterdrucks wird die Flüssigkeit durch das mit der Pumpenkammer verbundene Einlassrohr angesaugt. Das Flüssigkeitsniveau steigt bis der Schwimmer angehoben wird und sich an den Abdichtring in der Filterkammer anlegt, um die Verbindung zur Unterdruckquelle zu unterbrechen; durch den Unterdruck wird die Dichtigkeit der Paarung am Abdichtring und Schwimmer gewährleistet. Nach einem bestimmten Zeitraum werden das Einlassventil und das Unterdruckventil geschlossen sowie das Druckventil und das Auslassventil geöffnet. Dann wird die Pumpenkammer entleert, indem die Flüssigkeit mittels Druck herausgepresst wird. Nach einigen Sekunden werden Druck- und Auslassventile wieder geschlossen und der Zyklus kann erneut beginnen.The system according to the invention works - controlled by a control box - automatically. For conveying liquid, the vacuum-side shut-off valve and the inlet valve are opened; with the help of the negative pressure, the liquid is sucked through the inlet pipe connected to the pump chamber. The liquid level rises until the float is lifted and abuts the sealing ring in the filter chamber to break the connection to the vacuum source; by the negative pressure, the tightness of the mating on the sealing ring and float is guaranteed. After a certain period of time, the inlet valve and the vacuum valve are closed and the pressure valve and the exhaust valve opened. Then the pump chamber is emptied by the liquid is pressed out by pressure. After a few seconds, the pressure and discharge valves close again and the cycle can begin again.

Auch zum Fördern von Pulver werden erfindungsgemäß das unterdruckseitige Absperrventil und das Einlassventil geöffnet sowie mittels des Unterdruckes das Pulver durch das mit der Pumpenkammer verbundene Leitungssystem bzw. Einlassrohr angesaugt. Die Pumpenkammer füllt sich mit Pulver. Der Filter in deren oberem Bereich verhindert, dass feine Partikel in das Vakuumsystem gelangen. Der Schwimmer bleibt in seiner tiefen Stellung, da die Geschwindigkeit des Fördergases nicht ausreicht, ihn anzuheben. Ebenfalls hier werden nach einem bestimmten Zeitraum Einlassventil und Absperr- oder Unterdruckventil geschlossen und das Druckventil sowie das Auslassventil geöffnet; die Pumpenkammer wird durch den Druck entleert, der gleichzeitig den Filter im Gegenstrom reinigt, und nach einigen Sekunden werden Druck- und Auslassventil wieder geschlossen. Der Zyklus kann erneut beginnen.Also for conveying powder according to the invention, the vacuum-side shut-off valve and the inlet valve are opened and sucked by means of the negative pressure, the powder through the connected to the pump chamber line system or inlet pipe. The pump chamber fills with powder. The filter in its upper area prevents fine particles from entering the vacuum system. The float remains in its low position as the velocity of the conveying gas is insufficient to raise it. Also here are closed after a certain period inlet valve and shut-off or vacuum valve and the pressure valve and the exhaust valve open; the pump chamber is emptied by the pressure which simultaneously cleans the filter in countercurrent, and after a few seconds the pressure and discharge valves are closed again. The cycle can start again.

Soll eine Suspension gefördert werden, wird letztere mit Unterdruck durch das mit der Pumpenkammer verbundene Leitungssystem bzw. Einlassrohr angesaugt, und mittels des Filters im oberen Teil der Pumpenkammer werden die Partikel der Suspension von der Flüssigkeit getrennt sowie ein Verschmutzen des Schwimmers verhindert. Das Flüssigkeitsniveau steigt, bis der Schwimmer angehoben wird und den offenen Ringraum des Abdichtrings verschließt, um die Verbindung zur Unterdruckquelle zu unterbrechen. Nach einer bestimmten Wartezeit werden das Einlassventil sowie das Unterdruckventil geschlossen und das Druckventil sowie das Auslassventil geöffnet. Die Pumpenkammer wird entleert, indem das Pulver mittels Druck herausgepresst wird, der gleichzeitig den Filter im Gegenstrom reinigt. Nach wenigen Sekunden werden Druckventil und Auslassventil erneut geschlossen; der Zyklus kann wieder beginnen.If a suspension is to be conveyed, the latter is sucked in under reduced pressure through the pipe system or inlet pipe connected to the pump chamber, and by means of the filter in the upper part of the pump chamber the particles of the suspension are separated from the liquid and fouling of the float is prevented. The liquid level rises until the float is lifted and closes the open annulus of the sealing ring to break the connection to the vacuum source. After a certain waiting time, the inlet valve and the vacuum valve are closed and the pressure valve and the outlet valve open. The pump chamber is emptied by the powder is pressed out by pressure, which simultaneously cleans the filter in countercurrent. After a few seconds will be Pressure valve and outlet valve closed again; the cycle can start again.

Dieses System ist außerdem aufgabengemäß für das volumetrische Dosieren dieser unterschiedlichen Produkte heranzuziehen; denn das erfindungsgemäße System zur Trennung von Flüssigkeit und Pulver kann im Innenraum der Pumpenkammer verschoben werden, um so deren Volumen zu verändern.This system is also intended to be used for the volumetric dosing of these different products; because the inventive system for separating liquid and powder can be moved in the interior of the pump chamber, so as to change the volume.

In das Trennungssystem eingefügte O-Ringe erlauben ein Verschieben des Systems und gewähren gleichzeitig die Abdichtung des Systems zur Pumpenkammer hin, deren Volumenveränderung das volumetrische Dosieren ermöglicht. Von besonderer Bedeutung ist, dass die Vorrichtung zwischen dem Fördern zweier unterschiedlicher Pulver durch den Durchlauf von Flüssigkeit gereinigt zu werden vermag, vor allem aber durch Ansaugen von Reinigungsflüssigkeit.Inserted in the separation system O-rings allow a displacement of the system while allowing the seal of the system to the pump chamber, the volume change allows the volumetric dosing. Of particular importance is that the device between the conveying of two different powders can be cleaned by the passage of liquid, but especially by suction of cleaning liquid.

So liegt im Rahmen der Erfindung ein Verfahren zum pneumatischen Fördern fließfähiger Stoffe unter Verwendung der erfindungsgemäßen Vorrichtung, mit dem sowohl partikelförmige Stoffe als auch Flüssigkeit oder Suspension bzw. Pasten zeitgleich von einem Behälter in einen anderen überführt werden bzw. ein Gemisch aus flüssigen und partikelförmigen Stoffen gepumpt oder transportiert wird, das bevorzugt aus 0,01 bis 99,99 % flüssigen und 99 % bis 0,01 % partikelförmigen Stoffen besteht oder aus 5,0 % bis 95,0 % flüssigen und 95,0 % bis 5,0 % partikelförmigen Stoffen.Thus, in the context of the invention, a method for the pneumatic conveying of flowable substances using the device according to the invention, with both particulate matter and liquid or suspension or pastes are transferred simultaneously from one container to another or a mixture of liquid and particulate substances which is preferably from 0.01 to 99.99% liquid and 99% to 0.01% particulate, or from 5.0% to 95.0% liquid and 95.0% to 5.0% particulate matter.

Auch kann die Reinigung durch Betreiben der Vorrichtung in Leerzustand erfolgen.Also, the cleaning can be done by operating the device in an empty state.

Als günstig hat sich auch erwiesen, Stickstoff als Entleerungsgas einzusetzen und eine Inertatmosphäre während des Entleerungsvorganges zu schaffen.It has also proved to be beneficial to use nitrogen as a discharge gas and to create an inert atmosphere during the discharge process.

Der Einsatz des Erfindungsgegenstandes ist sowohl in der pharmazeutischen Industrie möglich als auch in der chemischen Industrie, der Farben- und Lackeproduktion und in der Lebensmittelindustrie.The use of the subject invention is both in the pharmaceutical industry possible as well as in the chemical industry, paint and Lackeproduktion and in the food industry.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele sowie anhand der Zeichnung; diese zeigt jeweils in schematischer Darstellung in

Fig. 1:
eine auf einem Aufnahmebehälter für fließfähige Stoffe angebrachte Vorrichtung zum pneumatischen Fördern der Stoffe in Seitenansicht ; Es ist zu bemerken dass diese nicht erfindungsgemäße Vorrchtung ohne das beanspruchte geneigte Auslassrohr gezeigt ist;
Fig. 2:
die vergrößerte Fördervorrichtung der Fig. 1 mit gegenüber dieser teilweise veränderten Details; Die Vorrichtung ist auch hier ohne das erfindungsgemäße geneigte Auslassrochr gezeigt;
Fig. 3:
einen Ausschnitt aus Fig. 2 bei veränderter Einstellung einiger Elemente;
Fig. 4:
einen anderen gegenüber Fig. 1, 2 geänderten Ausschnitt mit dem erfindungsgemäßen geneigten Auslassohr;
Fig. 5:
eine Seitenansicht einer gegenüber Fig. 1 bis 4 anders gestalteten Fördervorrichtung;
Fig. 6:
eine Skizze zu einer Variante der Fördervorrichtung der Fig. 5 in Seitenansicht.
Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawing; this shows in a schematic representation in each case
Fig. 1:
a mounted on a receptacle for flowable materials device for pneumatically conveying the substances in side view; It should be noted that this non-inventive device is shown without the claimed inclined outlet tube;
Fig. 2:
the enlarged conveyor of the Fig. 1 with respect to these partially modified details; The device is also shown here without the inclined Auslassrochr invention;
3:
a section from Fig. 2 with modified setting of some elements;
4:
another opposite Fig. 1 . 2 modified section with the inclined outlet pipe according to the invention;
Fig. 5:
a side view of one opposite Fig. 1 to 4 differently shaped conveyor;
Fig. 6:
a sketch of a variant of the conveying device of Fig. 5 in side view.

Von der Firstfläche eines Reaktionsgefäßes oder Aufnahmebehälters 10 für fließfähige Stoffe ragt in Fig. 1 eine mit letzterem durch ein vertikales Anschlussrohr 12 verbundene Fördervorrichtung 30 auf. Am Übergang von dieser in das Anschlussrohr 12 ist an einem Bund 14 ein Sperrorgan 16 vorgesehen, oberhalb dessen der trichterförmige Sockelbereich 32 einer zylindrischen Pumpenkammer 34 der Fördervorrichtung 30 zu erkennen ist. Von dieser geht -- unter Zwischenschaltung eines Einlassventils 18 -- ein Einlassrohr bzw. eine Zuführleitung 20 aus. Diese ist mit ihrem der Fördervorrichtung 30 fernen Ende an Zweigleitungen 22, 22f, 22s angeschlossen, die jeweils einem Speicherbehälter 24 für Pulver bzw. einem Speicherbehälter 26 für Flüssigkeiten bzw. einem Speicherbehälter 28 für eine Suspension zugeordnet sind. In Abhängigkeit von der Vorrichtungssteuerung fließt jeweils einer jener fließfähigen Stoffe in Fließrichtung x der Fördervorrichtung 30 zu.From the ridge surface of a reaction vessel or receptacle 10 for flowable substances protrudes in Fig. 1 a conveying device 30 connected to the latter by a vertical connecting pipe 12. At the transition from this into the connecting pipe 12, a blocking element 16 is provided on a collar 14, above which the funnel-shaped base region 32 of a cylindrical pump chamber 34 of the conveying device 30 can be seen. From this goes - with the interposition of an inlet valve 18 - an inlet pipe or a supply line 20 from. This is connected to the conveyor 30 remote end to branch lines 22, 22 f , 22 s , each of which a storage container 24 for Powder or a storage container 26 are assigned for liquids or a storage container 28 for a suspension. Depending on the device control, in each case one of those flowable substances flows in the direction of flow x of the conveying device 30.

Der auf einem Gestell 23 ruhende Pulverbehälter 24 ist hier mit einem trichterförmigen Auslaufsockel 25 ausgestattet, die beiden anderen Speicherbehälter 26, 28 sind fassartig gestaltet.The resting on a frame 23 powder container 24 is here equipped with a funnel-shaped outlet socket 25, the other two storage containers 26, 28 are designed like a barrel.

In den Innenraum 35 der rohrartigen und nach oben hin offenen Pumpenkammer 34 der Länge a von beispielsweise 50 bis 800 mm und des inneren Durchmessers d, dessen Maß vorzugsweise zwischen 10 mm bis 500 mm liegt, ist unter Bildung eines zylindrischen Spaltraumes 45 geringer Weite einemit einer horizontalen Kopfwand 36 als Deckel verseheneFirstkammer 38 engeren Außendurchmessers e in Pfeilrichtung t axial eingeschoben; zwischen letzterer und der Innenfläche 33 der Pumpenkammer. 34 verläuft eine diametrale Ringdichtung 47. Unterhalb dieser ist ein perforierter Sockelabschnitt 40 der Firstkammer 38 angedeutet, an dessen freie Mündungskante ein quer zur Vorrichtungslängsachse A angeordnetes Filterelement 44 (Filter bzw. eine Filterplatte) anschließt. Letztere ist von einem Dichtungswulst 46 umgeben, derwie jene Ringdichtung 47 -- sich nach außen hin an die Innenfläche 33 der Pumpenkammer 34 auch bei einer Vertikalbewegung der Firstkammer 38 anschmiegt.Into the interior 35 of the tubular and upwardly open pump chamber 34 of length a, for example, 50 to 800 mm and the inner diameter d, the dimension of which is preferably between 10 mm to 500 mm, 45 forming a cylindrical gap space with a small width one with a horizontal head wall 36 is provided as lidded first chamber 38 narrower outside diameter e axially inserted in the direction of arrow t; between the latter and the inner surface 33 of the pump chamber. Below this, a perforated base portion 40 of the ridge chamber 38 is indicated, at its free mouth edge a transverse to the device longitudinal axis A arranged filter element 44 (filter or a filter plate) connects. The latter is surrounded by a sealing bead 46, which, like that annular seal 47, conforms outwardly to the inner surface 33 of the pumping chamber 34 even during a vertical movement of the ridge chamber 38.

Nahe des Deckels bzw. der Kopfwand 36 der Firstkammer 38 ist ein -- deren Innenfläche 33 anliegender -- Abdichtring 48 zu erkennen, dessen offenem Ringzentrum 49 ein vertikal bzw. axial geführtes Schwimmorgan 50 zugeordnet ist. Der Querschnitt von dessen -- durch einen Stab 51 verbundenen-- Kugelenden 52 ist größer als die lichte Weite des offenen Ringzentrums 49 jenes Abdichtringes 48, so dass diesesgemäß Fig. 2 -- von einem Kugelende 52 abgedichtet zu werden vermag. In Fig. 3 ist der offene Zustand des Abdichtringes 48 skizziert; der mit dem Schwimmorgan 50 eine Art von Ventil bildet.Near the lid or the top wall 36 of the ridge chamber 38, a sealing ring 48, which bears against its inside surface 33, can be seen, whose open ring center 49 is assigned a vertically or axially guided floating member 50. The cross section of its - connected by a rod 51 - ball ends 52 is greater than the inside diameter of the open ring center 49 of that Abdichtringes 48, so that accordingly Fig. 2 - Is able to be sealed by a ball end 52. In Fig. 3 is the open state of the sealing ring 48 outlined; which forms a kind of valve with the floating member 50.

Von der Kopfwand 36 der Firstkammer 38 ragt ein T-förmiges Anschlussrohr 54 für zwei Leitungen 55, 56 auf, in die jeweils ein Absperrventil 57, 57a integriert ist.From the top wall 36 of the ridge chamber 38 projects a T-shaped connecting pipe 54 for two lines 55, 56, in each of which a check valve 57, 57 a is integrated.

Bei der Fördervorrichtung 30a der Fig. 2 ist der dort linken Leitung 55 des Anschlussrohres 54 als Fördergasleitung eine Pressluft- oder Gas-Quelle 58 von mehr als 0,3 bar zugeordnet und der als Vakuumleitung dienenden rechten Leitung 56 eine Vakuumpumpe 60 eines beispielsweisen Unterdrucks von < 500 mbar.In the conveying device 30 a of Fig. 2 the left-hand line 55 of the connecting pipe 54 is assigned as conveying gas line a compressed air or gas source 58 of more than 0.3 bar and serving as a vacuum line right line 56, a vacuum pump 60, for example, a negative pressure of <500 mbar.

Die zylindrische Pumpenkammer 34 der Fördervorrichtung 30a der Fig. 2 geht nach oben hin in einen Ringabschnitt 37 der Länge a1 mit nach innen geneigter Wandfläche über, an die ein zylindrischer Endkragen 37e engen Durchmessers e1 anschließt. In dieser Ausgestaltung sitzt die Ringdichtung 47 für die Firstkammer 38a innerhalb dieses Endkragens 37e.The cylindrical pump chamber 34 of the conveyor 30 a of Fig. 2 goes up into a ring portion 37 of length a 1 with inwardly inclined wall surface, to which a cylindrical end collar 37 e of narrow diameter e 1 followed . In this embodiment, the annular seal 47 sits for the ridge chamber 38 a within this end collar 37 e .

Die Firstkammer 38a ist hier von einem Gestell 62 umgeben, dessen Sockelfüße 64 auf der geneigten Außenfläche jenes Ringabschnitts 37 sitzen. Von den Sockelfüßen 64 ragen Führungsprofile 65 bzw. achsparallele Stäbe 66 auf mit Radialstreben 68, welche die axial bewegbare Firstkammer 38a führen; dank eines -- nicht gezeigten -- pneumatischen Antriebs kann letztere in dem Gestell 62 höhenverstellt werden. Die Filterplatte 44 lagert hier in einer mechanischen Halterung 42, die von dem oben beschriebenen Dichtwulst 46 umfangen ist.The ridge chamber 38 a is here surrounded by a frame 62, the base feet 64 sit on the inclined outer surface of that ring portion 37. Of the base feet 64 protrude guide sections 65 and achsparallele rods 66 with radial struts 68, which carry the axially movable ridge chamber 38 a ; thanks to a - not shown - pneumatic drive, the latter can be adjusted in height in the frame 62. The filter plate 44 stored here in a mechanical support 42 which is encompassed by the above-described sealing bead 46.

Bei der Ausführung nach Fig. 2 bildet der Sockelbereich 32 eine Spitze 31, an die eine Entnahmeleitung 21 mit integriertem Auslassventil 19 anschließt.In the execution after Fig. 2 the base region 32 forms a tip 31, to which a removal line 21 with integrated outlet valve 19 connects.

Das erfindungsgemäße System zum Trennen von Flüssigkeit und Pulver weist also ein -- in einer Führungshilfe auf und ab bewegbares -- Schwimmorgan oder einen Schwimmer 50 mit zugeordnetem Filter element 44 im oberen Bereich der Fördervorrichtung 30, 30a auf, die von einem Deckel 36 geschlossen ist. Dieser ist mit zumindest einer Druckquelle 58 und wenigstens einer Vakuumquelle 60 verbunden. Unterhalb des Deckels 36 bzw. im oberen Bereich der Firstkammer 38, 38a ist ein Abdichtungsring 48 vorgesehen, dem sich der Schwimmer 50 anlegt, um das System beim Ansaugen von Flüssigkeit in Fließrichtung x zu verschließen. Das automatisch arbeitende System wird dabei durch einen Schaltkasten gesteuert und funktioniert auf folgende Weise:The inventive system for separating liquid and powder thus has a - in a guide aid movable up and down - floating organ or a float 50 with associated filter element 44 in the upper region of the conveyor 30, 30 a , closed by a cover 36 is. This is connected to at least one pressure source 58 and at least one vacuum source 60. Below the lid 36 and in the upper region of the ridge chamber 38, 38 a , a sealing ring 48 is provided, which the float 50 applies to close the system when sucking liquid in the flow direction x. The automatic system is controlled by a control box and works in the following way:

Fördern von Flüssigkeit:Conveying fluid:

  • Das vakuumseitige Absperrventil 57a und das Einlassventil 18 sind geöffnet;The vacuum-side shut-off valve 57 a and the inlet valve 18 are opened;
  • mittels des Vakuums wird die Flüssigkeit durch das mit der Pumpenkammer 34 verbundene Einlassrohr 20 angesaugt.by means of the vacuum, the liquid is sucked in through the inlet pipe 20 connected to the pump chamber 34.
  • Das Flüssigkeitsniveau steigt, bis der Schwimmer 50 angehoben wird und sich an den Abdichtring 48 in der Firstkammer 38, 38a anlegt, um die Verbindung zur Vakuumquelle 60 zu unterbrechen. Durch das Vakuum wird die Dichtigkeit der Paarung Abdichtungsring/Schwimmer 48/50 gewährleistet.The liquid level rises until the float 50 is raised and abuts the Abdichtring 48 in the ridge chamber 38, 38 a , to break the connection to the vacuum source 60. The vacuum ensures the tightness of the mating sealing ring / float 48/50.
  • Nach einem bestimmten Zeitraum werden das Einlassventil 18 und das Unterdruckventil 57a geschlossen sowie das Druckventil 57 und das Auslassventil 19 geöffnet.After a certain period of time, the inlet valve 18 and the vacuum valve 57 a are closed and the pressure valve 57 and the outlet valve 19 are opened.
  • die Pumpenkammer 34 wird entleert, indem die Flüssigkeit mittels Druck herausgepresst wird.The pump chamber 34 is emptied by the liquid is pressed out by pressure.
  • Nach einigen Sekunden werden Druckventil 57 sowie Auslassventil 19 wieder geschlossen und der Zyklus kann erneut beginnen.After a few seconds pressure valve 57 and exhaust valve 19 are closed again and the cycle can start again.
Fördern von Pulver:Conveying powder:

  • Das vakuumseitige Absperrventil 57a und das Einlassventil 18 sind geöffnet;The vacuum-side shut-off valve 57 a and the inlet valve 18 are opened;
  • mittels des Vakuums wird das Pulver durch das mit der Pumpenkammer 34 verbundene Leitungssystem bzw. Einlassrohr 20 angesaugt.by means of the vacuum, the powder is sucked in through the pipe system 34 connected to the pumping chamber 34.
  • Die Pumpenkammer 34 füllt sich mit Pulver, und der Filter 44 in deren oberem Bereich verhindert, dass feine Partikel in das Vakuumsystem gelangen. Der Schwimmer 50 bleibt in seiner tiefen Stellung gemäß Fig. 3, da die Geschwindigkeit des Fördergases nicht ausreicht, um den Schwimmer 50 anzuheben.The pump chamber 34 fills with powder, and the filter 44 in its upper region prevents fine particles from entering the vacuum system. The float 50 remains in its low position according to Fig. 3 because the speed of the conveying gas is not sufficient to lift the float 50.
  • Nach einem bestimmten Zeitraum werden das Einlassventil 18 und das Absperr- oder Vakuumventil 57a geschlossen und das Druckventil 58 sowie das Auslassventil 19 geöffnet.After a certain period of time, the inlet valve 18 and the shut-off or vacuum valve 57 a are closed and the pressure valve 58 and the outlet valve 19 are opened.
  • Die Pumpenkammer 34 wird durch den Druck entleert, der gleichzeitig den Filter 44 im Gegenstrom reinigt.The pump chamber 34 is emptied by the pressure, which simultaneously cleans the filter 44 in countercurrent.
  • Nach einigen Sekunden werden Druckventil 57 sowie Auslassventil 19 wieder geschlossen und der Zyklus kann erneut beginnen.After a few seconds pressure valve 57 and exhaust valve 19 are closed again and the cycle can start again.
Fördern einer Suspension:Feeding a suspension:

  • Das Absperr- oder Vakuumventil 57a und das Einlassventil 18 sind geöffnet;The shut-off or vacuum valve 57 a and the inlet valve 18 are open;
  • mittels des Vakuums wird die Suspension durch das mit der Pumpenkammer 34 verbundene Leitungssystem bzw. Einlassrohr 20 angesaugt.by means of the vacuum, the suspension is sucked in through the pipe system or inlet pipe 20 connected to the pump chamber 34.
  • Durch den Filter 44 am oberen Teil der Pumpenkammer 34 werden die Partikel der Suspension von der Flüssigkeit getrennt und ein Verschmutzen des Schwimmers 50 verhindert. Das Flüssigkeitsniveau steigt, bis der Schwimmer 50 angehoben wird und den offenen Ringraum 49 des Abdichtringes 48 verschließt, um die Verbindung zur Unterdruckquelle 60 zu unterbrechen.Through the filter 44 at the upper part of the pump chamber 34, the particles of the suspension are separated from the liquid and fouling of the float 50 is prevented. The liquid level rises until the float 50 is raised and closes the open annulus 49 of the sealing ring 48 to break the connection to the vacuum source 60.
  • Nach einem bestimmten Zeitraum werden das Einlassventil 18 sowie das Vakuumventil 57a geschlossen und das Druckventil 58 sowie das Auslassventil 19 geöffnet.After a certain period of time, the inlet valve 18 and the vacuum valve 57 a are closed and the pressure valve 58 and the outlet valve 19 are opened.
  • Die Pumpenkammer 34 wird entleert, indem das Pulver mittels Druck herausgepresst wird, der gleichzeitig den Filter 44 im Gegenstrom reinigt.The pump chamber 34 is emptied by the powder is pressed out by pressure, which simultaneously cleans the filter 44 in countercurrent.
  • Nach einigen Sekunden werden Druckventil 57 und Auslassventil 19 wieder geschlossen und der Zyklus kann erneut beginnen.After a few seconds pressure valve 57 and exhaust valve 19 are closed again and the cycle can start again.

Dieses System ist außerdem für das volumetrische Dosieren dieser unterschiedlichen Produkte heranzuziehen; denn das erfindungsgemäße System zur Trennung von Flüssigkeit und Pulver wird im Innenraum 35 der Pumpenkammer 34 verschoben, deren Volumen sich verändert.This system is also to be used for the volumetric dosing of these different products; because the system according to the invention for the separation of liquid and powder is displaced in the interior 35 of the pump chamber 34, the volume of which changes.

Der Dichtungswulst 46 und die Ringdichtung 47 des Trennungssystems erlauben dessen Verschieben bei gleichzeitiger Abdichtung zur Pumpenkammer 34 hin, deren Volumenveränderung das volumetrische Dosieren ermöglicht.The sealing bead 46 and the annular seal 47 of the separation system allow its displacement while sealing the pump chamber 34 out, the volume change allows the volumetric dosing.

Bei der Ausgestaltung der Fördervorrichtung 30b der Fig. 4 schließt an deren Sockelbereich 32b ein axiales Ausschlussrohr 12b beliebiger Länge h an, das andernends in ein -- in einem Winkel w von beispielsweise 45° zur Vorrichtungslängsachse A geneigtes -- Auslaufrohr 70 übergeht; diesem ist außenseitig ein Vibrator 72 zugeordnet. Dieses Auslaufrohr 70 endet an einem achsparallelen Förderrohr 74, dessen Seitenwand ein -- eine Schließplatte als Schieber 75 tragenden -- Druckteil 76 eines Verschlusselementes 78 durchgreift; jene Schließplatte 75 dient der Regulierung eines Förderstromes an der Mündung des Auslaufrohres 70 und somit der Dosierung des Produktes. Die Schließung des beschriebenen Systems erfolgt durch ein Auslassventil 19b, das am unteren Ende des Förderrohres 74 zu erkennen ist.In the embodiment of the conveying device 30 b of Fig. 4 closes at its base portion 32 b an axial Ausschlussrohr 12 b of any length h, the other end in a - at an angle w, for example, 45 ° to the device longitudinal axis A inclined - outlet pipe 70 passes; this is the outside of a vibrator 72 assigned. This outlet pipe 70 terminates at an axis-parallel conveying tube 74, the side wall of which engages through a pressure member 76 of a closure element 78 carrying a closing plate as a slider 75; That closing plate 75 serves to regulate a flow at the mouth of the outlet pipe 70 and thus the dosage of the product. The closure of the described system is effected by an outlet valve 19 b , which can be seen at the lower end of the conveying tube 74.

Das erfindungsgemäße System bzw. seine Organe kann/können beweglich sein oder aber feststehend. Zu letzterem sei beispielhaft auf Fig. 5, 6 Bezug genommen; in einer büchsenähnlichen Vorrichtung 80 der Fig. 5 lagert eine Filterplatte 44a in einem -- außerhalb einer Zylinderwand 82 der Vorrichtung 80 diese umgebenden -- ringartigen Rahmen 84, der von zwei Rahmenplatten 86, 86t gehalten wird. Diese kragen seitlich ab und können so durch Auflegen auf einnicht gezeigtes -- Widerlager beispielsweise mittels Schraubenlöcher 87 durchsetzender Schrauben -- festgelegt werden.The system according to the invention or its organs can be movable or fixed. The latter is an example Fig. 5, 6 Reference is made; in a can-like device 80 of the Fig. 5 stores a filter plate 44 a in one - outside of a cylinder wall 82nd the device 80 this surrounding - ring-like frame 84 which is held by two frame plates 86, 86 t . These collar from the side and can be so by laying on a not shown - abutment example, by means of screw holes 87 enforcing screws - set.

Auf der oberen Rahmenplatte 86 ruht ein zylindrischer Behälterabschnitt 88, der durch einen Domdeckel 90 miteine zentrische Öffnung 91 des Durchmessers d1 umgebenden-- Firstkragen 92 verschlossen ist. Letzterem sitzt ein Dachring 94 mit nach außen abwärts geneigter Kantenfläche 95 auf, der seinerseits eine zentrische Öffnung 96 geringen Durchmessers d2 enthält, in welcher ein Abdichtring 48 zu erkennen ist sowie über diesem ein Zuführstutzen 98 mit jene Öffnung 96 fortsetzendem Innenraum zum Anschluss des Anschlussrohres 54 mit den von Fördergasleitung 55 und Vakuumleitung 56, also für Über- und Unterdruck.On the upper frame plate 86 rests a cylindrical container portion 88, which is closed by a dome cover 90 with a central opening 91 of the diameter d 1 surrounding - Firstkragen 92. The latter is seated a roof ring 94 with outwardly inclined edge surface 95, which in turn contains a central opening 96 of small diameter d 2 , in which a Abdichtring 48 can be seen and above this a Zuführstutzen 98 with that opening 96 weiteretzendem interior for connection of the connection pipe 54 with the conveying gas line 55 and vacuum line 56, ie for positive and negative pressure.

In der unteren Rahmenplatte 86t lagert ein unterer Behälterabschnitt 88t als zylindrische Kammer, in dessen/deren Innenraum 35a die hier nicht erkennbaren Zuführ- und Entnahmeleitungen 20 bzw. 21 münden; die Behälterabschnitte 88, 88t ergeben eine zylindrische Kammer 34a mit nicht bewegbarer Filterplatte 44a, oberhalb deren sich ein ebenfalls nicht bewegbares axiales Firstgestell 100 aus -- hier vier -- vertikal verlaufenden Stäben 102 erstreckt, das dem Dachring 94 innenseitig zugeordnet ist. Der Durchmesser b1 jedes Stabes 102 des Firstgestells 100 entspricht bevorzugt etwa dem Durchmesser b des die beiden Kugelenden 52 verbindenden Stabes 51 des Schwimmers 50 von etwa 10 mm.In the lower frame plate 86 t supports a lower container portion 88 t as a cylindrical chamber, in whose / inner space 35 a the not here recognizable supply and withdrawal lines 20 and 21 open; the container portions 88, 88 t result in a cylindrical chamber 34 a with non-movable filter plate 44 a , above which a likewise non-movable axial ridge frame 100 from - here four - extending vertically extending bars 102 which is assigned to the roof ring 94 inside. The diameter b 1 of each bar 102 of the ridge frame 100 preferably corresponds approximately to the diameter b of the bar 50 connecting the two ball ends 52 of the float 50 of about 10 mm.

An die -- einen inneren Durchmesser f eines Sockelabschnitts 105 der Länge g des Firstgestells bestimmendenfreien Enden 104 der Stäbe 102 ist nahe dem Rahmen 84 und parallel zu diesem en Lochblech 110 angefügt. In jenem Abstand g zu seinem unteren Stabende 104 bzw. dem Lochblech 110 ist der Stab 102 auf eine kurze Länge g1 als Stababschnitt 106 in einem Winkel w1 von etwa 30° achswärts geneigt, so dass der innere Durchmesser f1 des nach oben folgenden oberen Gestellabschnitts 108 der axialen Länge g2 kürzer ist als der oben erwähnte Durchmesser f. Die Länge g2 ist hier im übrigen kürzer als die halbe Länge g des Sockelabschnitts 104. Eine ebenfalls geringe Länge g3 bieten die Endabschnitte 107 der Stäbe 102 an, die gegenläufig zu jenen Stababschnitten 106 nach außen geneigt und am Dachring 94 innenseitig angeordnet sind.The free ends 104 of the bars 102, which define an inner diameter f of a base section 105 of the length g of the ridge frame, are attached near the frame 84 and parallel to this perforated plate 110. At that distance g to its lower rod end 104 and the perforated plate 110 is the rod 102 to a short length g 1 as a rod portion 106 inclined at an angle w 1 of about 30 ° achsächts, so that the inner diameter f 1 of the upward upper frame portion 108 of the axial length g 2 is shorter than the above-mentioned diameter f. The length g 2 here is also shorter than half the length g of the base portion 104. A likewise small length g 3 offer the end portions 107 of the bars 102, which are inclined in opposite directions to those bar sections 106 outwardly and on the roof ring 94 inside.

Die Pumpenkammer 34b der Fig. 6 unterscheidet sich von der Pumpenkammer 34a der Fig. 5 vor allem durch einen flachen Firstdeckel 89, dem innenseitig der Abdichtring 48 zugeordnet ist; dieser liegt zwischen den geneigten Endabschnitten 107 des Firstgestells 100.The pump chamber 34 b of Fig. 6 differs from the pump chamber 34 a of Fig. 5 especially by a flat ridge cover 89, the inside of the sealing ring 48 is assigned; this is between the inclined end portions 107 of the ridge frame 100th

Im Firstgestell 100 der Fig. 5, 6 befindet sich ein Schwimmorgan bzw. Schwimmer 50a der beispielsweisen Länge z von 150 mm mit beidends des Stabes 51 der Länge Z1 von hier 35 mm vorgesehenen Kugelenden 52, 52t unterschiedlichen Durchmessers y, y1 von 50 bzw. 65 mm.In the ridge 100 of the Fig. 5, 6 there is a floating organ or float 50 a of the example length z of 150 mm with both ends of the rod 51 of length Z 1 of here 35 mm provided ball ends 52, 52 t of different diameters y, y 1 of 50 and 65 mm.

Die Kugelenden 52 bzw. 52t, deren Wanddicke beispielsweise 0,6 mm misst, liegen lose im Firstgestell 100, können aber auch im Bereich ihres jeweiligen Äquators 53 gegebenenfalls den Stäben 102 im Sockelabschnitt 105 bzw. im oberen Gestellabschnitt 108 innenseitig anliegen, so dass der Schwimmer 50a axial geführt wird. Beim Schließvorgang legt sich -- wie oben schon dargelegt und in Fig. 6 angedeutet-- das obere Kugelende 52 dem Abdichtring 48 an und schließt so das offene Ringzentrum 49. In Gegenrichtung begrenzt jenes Lochblech oder Lochgitter 110 den Sinkweg des Schwimmers 50, 50a.The ball ends 52 and 52 t , whose wall thickness measures, for example, 0.6 mm, lie loosely in the ridge frame 100, but may also abut the rods 102 in the base section 105 or in the upper frame section 108 on the inside in the region of their respective equator 53, so that the float 50 a is guided axially. When closing closes - as stated above and in Fig. 6 indicated - the upper end of the ball 52 to the sealing ring 48 and thus closes the open ring center 49. In the opposite direction that perforated plate or perforated grille 110 limits the sinking path of the float 50, 50 a .

Claims (45)

  1. Device for conveying free-flowing materials, comprising a pump chamber (34, 34a, 34b) connected at one end to a vacuum line (56) and to a gas supply line (55) by way of at least one filter element (44, 44a), means (38, 38a, 100) for separating liquid and powder by way of the filter element (44, 44a) being mounted in the upper region of the vertically elongate cylindrical pump chamber (34, 34a, 34b) and a floating member (50, 50a) being mounted above said means as a sealing element, characterised in that at least one supply line (20) and at least one discharge line (12, 21) for the material are associated with the pump chamber (34, 34a, 34b), the pump chamber (34, 34a, 34b) being connected at its lower region to the supply line (20) and to the discharge line (12, 21) for liquid and/or powder and/or suspension and/or paste so as to pneumatically convey liquids, powder, suspensions and pastes, and an outlet pipe (70) being arranged at the outlet end of the pump chamber (34, 34a, 34b) and inclined relative to the longitudinal axis (A) of said chamber and into which pipe the discharge line (12, 21) merges.
  2. Device according to claim 1, characterised by a plurality of supply lines (20) for a plurality of products.
  3. Device according to either claim 1 or claim 2, characterised in that the filter element (44, 44a) traversing the longitudinal axis (A) of the means (38, 38a, 38b) is arranged between said means and the pump chamber (34, 34a, 34b).
  4. Device according to any one of claims 1 to 3, characterised in that the end of the means (38, 38a, 100) remote from the filter element (44, 44a) is associated with the gas supply line (55) and with the vacuum line (56).
  5. Device according to claim 4, characterised in that a T-shaped connecting pipe (54) having two connecting portions, each comprising a shutoff valve (57, 57a) for the gas supply line (55) and the vacuum line (56), projects from an upper wall (36) of the means (38, 38a, 100).
  6. Device according to any one of claims 1 to 5, characterised in that the pump chamber (34, 34a, 34b) is connected to at least one inlet valve (18) and to an outlet valve (19, 19b) for the material.
  7. Device according to any one of claims 1 to 6, characterised in that the means is configured as an axial apex chamber (38, 38a) of the pump chamber (34) of the device (30, 30a) and is arranged so as to be axially movable in said pump chamber (Fig. 2).
  8. Device according to claim 7, characterised in that the apex chamber (38, 38a) is tightly encompassed by at least one annular seal (47) of the pump chamber (34).
  9. Device according to claim 8, characterised in that the annular seal (47) is arranged in the cylindrical pump chamber (34) so as to form an annular gap (45) of small gap width between said pump chamber and the apex chamber (38) (Fig. 1).
  10. Device according to claim 8, characterised in that the annular seal (47) extends into an annular end collar (37e), of which the diameter (e1) is smaller than the diameter (d) of the pump chamber (34) (Figs 2 and 3).
  11. Device according to claim 10, characterised in that an annular portion is arranged, in particular integrally, between the end collar (37e) and the pump chamber (34) and widens into a funnel shape towards the pump chamber.
  12. Device according to claim 11, characterised in that a frame (62) for axially guiding the movable apex chamber (38a) projects from the annular portion (37).
  13. Device according to any one of claims 1 to 12, characterised in that the filter element (44) is associated, as a filter plate, with a base portion (40) of the apex chamber (38, 38a) of the device (30, 30a).
  14. Device according to claim 13, characterised by a perforated base portion (40) of the apex chamber (38, 38a).
  15. Device according to either claim 13 or claim 14, characterised in that the filter plate (44) is arranged on the base portion (40) of the apex chamber (38, 38a) and extends beyond it in a lateral direction.
  16. Device according to either claim 14 or claim 15, characterised in that the edge of the filter plate (44) is surrounded by at least one sealing bead (46), of which the other side abuts the inner surface (31) of the pump chamber (34), the filter plate optionally being arranged in a holder (42) which is surrounded by the sealing bead.
  17. Device according to any one of claims 1 to 16, characterised in that the outlet pipe (70) connects to an axial connecting pipe (12b) of the base region (32b) of the pump chamber (Fig. 4).
  18. Device according to claim 17, characterised by at least one vibrator (72) mounted on the outlet pipe (70).
  19. Device according to either claim 17 or claim 18, characterised in that the inclined outlet pipe (70) opens into a supply pipe (74) which is preferably axis parallel to the pump chamber (34), a closure element (78) being associated with the opening region and at least one outlet valve (19b) being associated with the free end of the supply pipe.
  20. Device according to claim 19, characterised in that where the outlet pipe (70) merges into the supply pipe, it can be covered by a closing plate (75) of the closure element (78).
  21. Device according to either claim 19 or claim 20, characterised in that the opening of the outlet pipe (70) can be covered by the closing plate (75).
  22. Device according to any one of claims 1 to 6, characterised in that the means is configured as an apex frame (100) in the upper region of the pump chamber (34a, 34b) and is arranged at a distance from the filter element (44a).
  23. Device according to claim 22, characterised in that the apex frame (100) is cage-like and consists of substantially axis parallel rods (102) which are each optionally deformed at a distance (g) from their free end (104) in such a way that an upper frame portion (108) extends above a lower base portion (105), the diameter (f1) of which upper frame portion is smaller than the diameter (f) of the lower frame portion..
  24. Device according to either claim 22 or claim 23, characterised in that approximately two thirds of the entire length of the apex frame (100) consists of its lower frame portion (105) and approximately one third of the entire length of the apex frame consists of the upper frame portion (108).
  25. Device according to any one of claims 22 to 24, characterised in that the filter element is arranged in a framework (84) as a filter plate (44a) and said framework is arranged between two receptacle portions (88, 88t) in the pump chamber (34a).
  26. Device according to either claim 24 or claim 25, characterised in that the apex frame (100) is fixed towards an apex in a roof ring (94) and is provided at its lower end with a perforated plate or grid (110), a screen or a filter which extends substantially parallel to the filter plate (44a).
  27. Device according to claim 26, characterised in that the perforated plate or grid (110) or the screen or filter extends at a distance from and approximately parallel to the filter plate (44a).
  28. Device according to any one of claims 1 to 27, characterised in that the floating member (50, 50a) is associated with a sealing ring (48) in the apex chamber (38, 38a) or to the apex frame (100), and the open centre (49) of the ring can be closed by the floating member.
  29. Device according to claim 28, characterised in that the sealing ring (48) and the floating member (50, 50a) form a valve from two interconnected members, the open centre (49) of the sealing ring (48) being closable by a ball end (52) of the floating member.
  30. Device according to either claim 28 or claim 29, characterised in that the floating member (50, 50a) comprises two ball ends (52; 52, 52t) which are axially connected by a tubular portion (51).
  31. Device according to any one of claims 28 to 30, characterised in that the two ball ends (52, 52) have different diameters (f, f1) and are associated with portions (105, 108) of the apex frame (100) having corresponding inside widths.
  32. Device according to claim 31, characterised in that the two ball ends (52, 52t) are equatorially associated with the portions (105, 108) of the apex frame (100) having corresponding inner diameters (f, f1).
  33. Device according to any one of claims 28 to 32, characterised in that the floating member (50, 50a) closes the entrance to the vacuum line (56) by way of at least one ball end (52).
  34. Device according to any one of claims 28 to 33, characterised in that the upper ball end (32) sealing the vacuum system has a diameter of 15 to 90 mm, preferably 30 to 70 mm and/or the lower ball end has a diameter of 10 to 100 mm, preferably 20 to 80 mm.
  35. Device according to any one of claims 1 to 34, characterised in that the pump chamber (34, 34a, 34b) is from 10 to 1000 mm long, preferably from 50 to 800 mm or from 60 to 100 mm long.
  36. Device according to at least one of claims 1 to 35, characterised in that the pump chamber (34, 34a, 34b) has a diameter (d) of from 5 to 500 mm, preferably of 200 mm.
  37. Method for pneumatically conveying free-flowing materials using a device according to at least one of the preceding claims, characterised in that particulate materials as well as liquid or a suspension or pastes are transferred at the same time from one receptacle to another.
  38. Method according to claim 37, characterised in that a mixture of liquid and particulate materials is pumped or transported.
  39. Method according to either claim 37 or claim 38, characterised in that the material is metered by partially opening a closure element at an outlet pipe as desired.
  40. Method according to any one of claims 37 to 39, characterised in that a mixture of 0.01 to 99.99 % liquid and of 99.99 % to 0.01 % particulate materials is pumped or transported.
  41. Method according to any one of claims 37 to 39, characterised in that a mixture of 5.0 % to 95.0 % liquid and of 95.0 % to 5.0 % particulate materials is pumped or transported.
  42. Method according to any one of claims 37 to 41, characterised in that the apex chamber (38, 38a) is displaced axially in the pump chamber.
  43. Method according to any one of claims 37 to 42, characterised in that the device (30, 30a, 80) is cleaned by drawing in a cleaning liquid.
  44. Method according to any one of claims 37 to 43, characterised in that the filter element (44, 44a) is cleaned by running the device when empty.
  45. Method according to any one of claims 37 to 44, characterised in that nitrogen is used as an emptying gas and an inert atmosphere is created during the emptying process.
EP08018633A 2006-02-02 2007-01-30 Device and method for feeding substances Active EP2019209B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006005190 2006-02-02
DE102006007277A DE102006007277A1 (en) 2006-02-02 2006-02-15 Apparatus and method for conveying substances
EP07703136A EP1982074B1 (en) 2006-02-02 2007-01-30 Device, and method for feeding substances

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP07703136A Division EP1982074B1 (en) 2006-02-02 2007-01-30 Device, and method for feeding substances

Publications (2)

Publication Number Publication Date
EP2019209A1 EP2019209A1 (en) 2009-01-28
EP2019209B1 true EP2019209B1 (en) 2009-12-02

Family

ID=37967437

Family Applications (2)

Application Number Title Priority Date Filing Date
EP07703136A Active EP1982074B1 (en) 2006-02-02 2007-01-30 Device, and method for feeding substances
EP08018633A Active EP2019209B1 (en) 2006-02-02 2007-01-30 Device and method for feeding substances

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP07703136A Active EP1982074B1 (en) 2006-02-02 2007-01-30 Device, and method for feeding substances

Country Status (6)

Country Link
US (2) US8157484B2 (en)
EP (2) EP1982074B1 (en)
CN (2) CN101469724B (en)
AT (2) ATE451555T1 (en)
DE (3) DE102006007277A1 (en)
WO (1) WO2007088022A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2457490A (en) * 2008-02-15 2009-08-19 Wright Machinery Ltd Tubular conveyor for conveying bagged foodstuff
US8529160B2 (en) * 2008-02-19 2013-09-10 Steven Richard Ambriz Bulk abrasive hopper
US20120138191A1 (en) * 2010-12-03 2012-06-07 Jack Harris System for delivering solid particulate matter for loading
US9877424B2 (en) 2010-12-08 2018-01-30 Bayer Cropscience, Lp Seed treatment facilities, methods and apparatus
US9959511B2 (en) 2010-12-08 2018-05-01 Bayer Cropscience Lp Retail point seed treatment systems and methods
US9861027B2 (en) 2010-12-08 2018-01-09 Bayer Cropscience, Lp Seed treatment systems and methods
DE102013218326A1 (en) 2013-09-12 2015-03-12 Gema Switzerland Gmbh Powder supply device for a powder coating system
CN103708228A (en) * 2013-12-18 2014-04-09 镇江立达纤维工业有限责任公司 Novel powder pumping machine
CA2904783C (en) * 2014-11-04 2020-07-14 Cnh Industrial Canada, Ltd. Tank pressurization control for air carts
US11707771B2 (en) 2019-04-05 2023-07-25 Baxter Healthcare Sa Cleaning process for a powder transfer system
CN110608051A (en) * 2019-09-26 2019-12-24 江苏大成轨道科技有限公司 Novel axial coupling assembling
KR102639581B1 (en) * 2022-12-23 2024-02-22 이강진 Vacuum type powder transfer apparatus for easy cleaning

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1587864A (en) * 1925-04-17 1926-06-08 Charles E Sargent Eductor
US1816025A (en) * 1929-01-19 1931-07-28 Sablik Ignaz Liquid feeding apparatus
US3423130A (en) * 1966-12-07 1969-01-21 James G Milner Evacuation apparatus
US3556682A (en) * 1968-08-12 1971-01-19 Hitachi Ltd Apparatus for liquid displacement transfer
US3612089A (en) * 1968-10-28 1971-10-12 Torit Corp Vacuum reactivator
US3591316A (en) * 1969-02-26 1971-07-06 Robert J Piccirilli Automatic centrifugal pump primer
US3706319A (en) * 1971-01-27 1972-12-19 John W Neese Apparatus for evacuating septic tanks or the like
US3736950A (en) * 1971-07-12 1973-06-05 Dover Corp Anti-contamination vent valve
US4057364A (en) * 1974-08-23 1977-11-08 John Bratschitsch Fluid transfer systems and valves therefor
US4251240A (en) * 1979-05-11 1981-02-17 Griffin International, Inc. Pump valve assembly
US4412762A (en) * 1981-06-25 1983-11-01 Pfizer Inc. Pneumatic unloading of particulates
US4530370A (en) * 1983-05-25 1985-07-23 Babson Bros. Co. Dispenser filling apparatus and method
US5007803A (en) * 1989-09-28 1991-04-16 Global Pumps, Inc. Air operated vacuum pump
US5033914A (en) * 1989-09-29 1991-07-23 Cyclonaire Corporation High efficiency feeder apparatus for pneumatic conveying lines
EP0421940A1 (en) * 1989-10-06 1991-04-10 Vacumjet AG Gas driven pump
DE4134824A1 (en) 1991-10-22 1993-04-29 Battenfeld Kunststoffmasch DEVICE FOR CONVEYING GRAINY AND / OR POWDERY SOLIDS
US5265653A (en) 1992-11-16 1993-11-30 Herlth August H Portable pneumatic liquid transfer assembly
WO1996041956A1 (en) * 1995-06-12 1996-12-27 E.R. Advanced Ceramics, Inc. Magnetically controlled liquid transfer system
EP0937004B2 (en) 1996-10-22 2006-10-11 Dietrich Engineering Consultants S.A. Process and device for pneumatically conveying powdery substances
US6113663A (en) * 1998-11-10 2000-09-05 Shop Vac Corporation Vacuum cleaner having a dual filter assembly
US6264434B1 (en) * 1999-10-07 2001-07-24 Christian Carl Frank Air pressure driven two way fluid evacuation and expulsion system
JP4268868B2 (en) * 2001-09-10 2009-05-27 ディートリッヒ，イブ Apparatus and method for transporting material transported in the form of fine particles, powder, granules or granules from a storage container into a work container or transport container, or an equivalent storage space
DE10240804B4 (en) * 2002-08-30 2012-04-19 Oase Gmbh Silt

Also Published As

Publication number Publication date
CN101410629A (en) 2009-04-15
DE102006007277A1 (en) 2007-08-09
US8157484B2 (en) 2012-04-17
CN101410629B (en) 2013-05-08
ATE450713T1 (en) 2009-12-15
EP1982074A1 (en) 2008-10-22
ATE451555T1 (en) 2009-12-15
CN101469724B (en) 2013-05-08
EP1982074B1 (en) 2009-12-09
US20090180899A1 (en) 2009-07-16
EP2019209A1 (en) 2009-01-28
CN101469724A (en) 2009-07-01
WO2007088022A1 (en) 2007-08-09
DE502007002195D1 (en) 2010-01-14
US20090162150A1 (en) 2009-06-25
DE502007002258D1 (en) 2010-01-21

Similar Documents

Publication Publication Date Title
EP2019209B1 (en) Device and method for feeding substances
EP0937004B2 (en) Process and device for pneumatically conveying powdery substances
DE60201637T2 (en) Device for handling bulk materials
EP1953098A1 (en) Emptying device for powder sacks for powder spray coating facilities
DE102007040899A1 (en) Fresh auxiliary material e.g. calcium carbonate, supplying method for filter device, involves supplying auxiliary material to auxiliary material receptacle over auxiliary material-supply line when receptacle is in working position
EP1742725B1 (en) Method and device for pneumatic treatment of powder materials
EP1427657B1 (en) Device and method for transferring a dusty, powdery, grain-like or granular conveyed material out of a storage receptacle and into a working or transfer receptacle or a similar accommodating space
EP3552716B1 (en) Conveyor device for conveying coating powder, powder centre with the conveyor device and a method of cleaning the powder centre
DE3145017A1 (en) PNEUMATIC CONVEYOR
EP1552347A2 (en) Method and device for the transport of toner material from a reservoir
WO1998028069A1 (en) Dosing and nuancing system
DE102014223307B4 (en) Powder container for supplying a spray coating system with coating powder
EP2152586B1 (en) Packing machine
CH690573A5 (en) Method and apparatus for avoiding Produktestaub- or gas outlet products at filling with solid or Flüssigkeitsdosiersystemen.
DE102005010574A1 (en) Suction conveyor for bulk materials, especially pharmaceuticals, comprises tubular casing which temporarily stores material, suction line being mounted at top of housing, around which filter is fitted which acts as closure for housing
CH692143A5 (en) Method for avoiding dust and gas emissions when decanting fluids and solids
EP3552714A1 (en) Powder conveyor for conveying coating powder, method for producing the powder conveyor and powder centre with the powder conveyor for supplying a powder coating installation
DE2720094A1 (en) Granular material transporting air separation system - delivers upwards into upright cylindrical vessel with filter disc at top to form metering chamber
CH704502A2 (en) Filter element and filter system.
DE10334485B4 (en) Transit container for the pneumatic conveying of powdered material
EP3523201B1 (en) Filling device for a packaging machine for filling bulk material into containers
EP1695912A1 (en) Metering unit for granular bulk materials
DE20221545U1 (en) Device for transferring materials in the form of dust, powder or granules, comprises a material delivery line which leads into a filter space located in a container joined to gas and/or air pipes
DE10234013A1 (en) Device and method for transferring a dust, powder, granular or granular material to be conveyed from a storage container into a work or transfer container or the like. accommodation space
DE10013976C1 (en) Pneumatic conveying device for bulk material has devices to supply pigs, which are moved through conveyor line and unit to separate pigs, which has removal vessel with grating

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20081106

AC Divisional application: reference to earlier application

Ref document number: 1982074

Country of ref document: EP

Kind code of ref document: P

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AC Divisional application: reference to earlier application

Ref document number: 1982074

Country of ref document: EP

Kind code of ref document: P

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 502007002195

Country of ref document: DE

Date of ref document: 20100114

Kind code of ref document: P

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: BODENSEEPATENT GMBH

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20091202

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091202

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091202

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091202

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20091202

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091202

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091202

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091202

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091202

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100313

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091202

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100402

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091202

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091202

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100402

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100302

BERE Be: lapsed

Owner name: FYDEC HOLDING SA

Effective date: 20100131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091202

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100131

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091202

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100303

26N No opposition filed

Effective date: 20100903

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091202

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100131

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20110501

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20110501

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IE

Payment date: 20120120

Year of fee payment: 6

Ref country code: FR

Payment date: 20120201

Year of fee payment: 6

Ref country code: CH

Payment date: 20120124

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20120126

Year of fee payment: 6

Ref country code: GB

Payment date: 20120124

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100603

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091202

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 450713

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120130

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20130130

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20130930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130131

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130130

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130130

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20230130

Year of fee payment: 17