EP1528013B1 - Dispositif aérateur de décolmatage avec ventil placé dans la partie superieure de l'interieur d'un conteneur - Google Patents

Dispositif aérateur de décolmatage avec ventil placé dans la partie superieure de l'interieur d'un conteneur Download PDF

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Publication number
EP1528013B1
EP1528013B1 EP04025581A EP04025581A EP1528013B1 EP 1528013 B1 EP1528013 B1 EP 1528013B1 EP 04025581 A EP04025581 A EP 04025581A EP 04025581 A EP04025581 A EP 04025581A EP 1528013 B1 EP1528013 B1 EP 1528013B1
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EP
European Patent Office
Prior art keywords
valve
discharge pipe
air blast
cylinder
blast device
Prior art date
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Application number
EP04025581A
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German (de)
English (en)
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EP1528013A1 (fr
Inventor
Udo Leibling
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.)
Agrilux Beteiligungs GmbH
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Agrilux Beteiligungs GmbH
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/54—Large containers characterised by means facilitating filling or emptying
    • B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation
    • B65D88/70—Large containers characterised by means facilitating filling or emptying preventing bridge formation using fluid jets
    • B65D88/703—Air blowing devices, i.e. devices for the sudden introduction of compressed air into the container

Definitions

  • the present invention relates to an air blast apparatus according to the preamble of claim 1.
  • Puffing devices have been known for a long time in storage containers, such as silos or in process engineering plants, in order to dissolve caking by means of corresponding air blasts or impacts with inert gas.
  • air blast equipment with external valve unit as described in EP 1 223 117 A1 or DE 36 02 207 A1
  • internal valve units as for example from DE 2 402 001, DE 38 00 114 A1 or DE 37 42 489 C2 result.
  • the valve unit In air blowers with internal valve unit, the valve unit is disposed substantially within the compressed air tank, while it is located outside of the compressed air tank in air blowers with external valve unit.
  • Internal valve units have the advantage that in case of malfunction or damage to the valve, the valve parts that can be thrown explosively by the upcoming compressed air, not fly unchecked through the area and can lead to personal injury and property damage, but are trapped in a stable pressure vessel.
  • valve unit In the air blast devices with internal valve unit is still a distinction air blast equipment with underlying valve units, such as in DE 38 00 114 A1 or DE 37 42 489 C2, and overhead valve units, such as in DE 2 402 001. Bottom means here that the valve unit is arranged in the vicinity of the outlet opening, while in overhead valve units, the valve unit is provided on the side opposite the outlet opening of the pressure vessel, so that the discharge pipe must extend substantially through the entire pressure vessel or a large part thereof.
  • Puff units with internal and overhead valve unit also have the advantage that the valve unit with the piston is relatively far away from the outlet opening, so that in systems with high heat development, the valve unit of a lower temperature load is exposed. Another advantage of such an air blast is that the valve unit is better accessible from the outside.
  • Essential in the present invention is the realization that the advantages of an internal and overhead valve unit in an air blast device with the advantages in terms of variable, constructive design with external valve units can be combined. Contrary to the previous opinion that a variable structural design and exact coordination of exhaust pipe and internal valve unit can only be achieved by a high design effort, it has been possible with simple design means a variable and precise design of the valve unit and exhaust pipe by the easy accessibility to the to achieve appropriate components. Accordingly, the exhaust pipe is no longer, as in the prior art, firmly welded to the pressure vessel, but arranged releasably in the pressure vessel together with the valve unit.
  • valve control can be designed so that initially only the Kolbenvorraum is pressurized with compressed air or corresponding gas and preferably after closing the valve of the compressed air tank is preferably filled via a connecting line with an overcurrent or check valve. This ensures that always first the quick exhaust valve is closed to close the exhaust pipe and no compressed air or corresponding gas can escape through the open pressure vessel. This is v. a. then advantageous if several air blast devices are connected in series, since then the filling of the air blast equipment can be done completely automatically.
  • valve cylinder To achieve a dense Kolbenvorraums it has proved to be advantageous in the valve cylinder to provide a valve outlet side opposite lid, which can be inserted over a circumferential nozzle on the valve cylinder, wherein provided between the cylinder wall and the cap nozzle a seal, in particular in the form of an O-ring is, which ensures a good seal.
  • the lid can also be made very compact, so that in the lid also the valve control or essential parts thereof can be integrated, such.
  • valve cylinder and discharge pipe are detachably connected to one another, for example via pin connections, screw connections or a threaded connection.
  • valve outlet for connecting the valve cylinder and exhaust pipe which also serves as a piston impact ring or valve seat for the piston of the valve unit can serve.
  • This impact ring can be welded, for example, with the exhaust pipe and connected to the valve cylinder by pin or screw.
  • valve outlet port or piston impact ring and the valve cylinder are made of a stainless steel material, in particular a chromium-nickel steel and in particular the valve cylinder is honed on the inner surface, whereby high-quality seal rings can be used.
  • the detachable arrangement of exhaust pipe and valve unit in the pressure vessel can preferably be achieved in that the pressure vessel in its container bottoms or cylinder ends at least one, but preferably two so-called.
  • Block flanges which can be welded to the container bottoms and where the exhaust pipe via a or several mounting flanges or the valve unit can be bolted to the pressure vessel via the valve cover.
  • Fig. 1 is a sectional view of an inventive air blast device is shown with a pressure vessel 1, the wall 2 has a cylindrical shape. At the two cylinder ends of the pressure vessel 1, preferably two pressure flanges 3 and 4 are provided centrally in the container wall 2, which are expediently welded to the container wall 2 on the bottom side.
  • the exhaust pipe 7, which extends along the longitudinal axis of the pressure vessel 1 coaxially to the container center to the outlet opening 29 opposite and upper cylinder side of the pressure vessel is welded at its in Fig. 1 upper end at 10 with a valve outlet port 9 in the form of a piece of pipe ,
  • valve outlet 9 is screwed by a thread 11 with a valve cylinder 12 of the valve unit, which forms the housing for a valve piston 13 which is arranged movably in the valve cylinder 12.
  • the valve unit is composed of valve cylinder 12 and piston 13 in the open position, in which the piston 13 is lifted upwards from the flange 9 and the valve opening of the flange 9 releases.
  • air or gas which is stored in the pressure vessel 1 under high pressure, abruptly escape via the exhaust pipe 7 and the passage openings 29 of the mounting flanges 5 and 6.
  • the valve cylinder 12 and the valve outlet port 9 are hereby preferably made of stainless steel, in particular made of a chromium-nickel steel and the valve cylinder 12 expediently honed inside.
  • the valve cylinder 12 is closed at its end opposite the outlet side with a lid 15 which engages over a circumferential neck 14 in the valve cylinder 12.
  • a seal 24 for example, an O-ring is preferably provided, which ensures a tight connection of the lid 15 with the valve cylinder 12 (see FIG. 2).
  • a damping ring 32 is preferably arranged in the cylinder 12.
  • valve control is shown in Fig. 1 in a schematic manner.
  • the valve unit with valve cylinder 12 and piston 13, which is located substantially within the pressure vessel 1, is supplied via the supply line 16 with compressed air or corresponding compressed gas, this via a check valve 18 and a buffer tank 17 and a 3/2-way valve 19 passes into the Kolbenvorraum 30 between the lid 15 and piston 13 of the valve unit.
  • the piston 13 is moved from the open position shown in Fig. 1 in a closed position in which the piston 13 rests with its underside on the valve outlet port 9 and thus closes the valve.
  • Fig. 2 shows in a similar representation as Fig. 1 is a cross-sectional view of another embodiment of an air blast apparatus according to the invention, in which substantially only the control elements for the valve unit have been integrated into the lid 15. Accordingly, similar parts are provided with the same reference numerals as in the embodiment of Fig. 1.
  • Another difference from the embodiment of Fig. 1 is the connection between the valve cylinder 12 and the valve outlet port 9.
  • the exhaust pipe 7 via the valve outlet 9 is not with the Valve cylinder 12 screwed, but the valve outlet 9 is connected via pin connections 28 or corresponding screw with the valve cylinder 12.
  • 3 to 5 show a further embodiment, which differs from the previous embodiments essentially only by the constructive arrangement of individual elements of the valve control, as the air blast apparatus according to the invention operates in the various operating states filling, firing and venting.
  • Fig. 3 the operating state filling is shown, wherein the arrows indicate the air or gas guide.
  • the air or gas is fed into the Kolbenvorraum 30, wherein the 3/2-way valve is set so that a corresponding connection is present.
  • the pressure vessel is filled via the check valve 21 and the connecting line 22.
  • the 3/2-way valve 19 is brought into a position in which the Kolbenvorraum 30 is connected to the vent 20.
  • the piston 13 is displaced by the applied pressure in the pressure vessel 1 in the direction of the valve cylinder cover 15, so that the air or the gas contained in the pressure vessel 1 can escape abruptly via the exhaust pipe 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Check Valves (AREA)
  • Toys (AREA)
  • Massaging Devices (AREA)

Claims (11)

  1. Appareil à coup de souffle pour éjecter de manière brusque des fluides gazéiformes, de préférence de l'air ou des gaz inertes, en particulier pour la suppression d'adhérences et l'élimination de problèmes d'écoulement dans des appareils technologiques, comme les silos et analogues, pourvu d'un réservoir sous pression (1) en vue du stockage du fluide gazéiforme sous pression et d'une unité de soupape pourvue d'un cylindre (12) et d'un piston mobile (13) en vue de l'évacuation par soufflage brusque du fluide stocké, dans lequel l'unité de soupape est agencée essentiellement en dessous du réservoir sous pression (1) et peut ouvrir et fermer un tuyau de purge (7), à travers lequel le fluide gazéiforme est évacué, et dans lequel le côté de sortie du tuyau de purge est agencé sur une paroi latérale du réservoir sous pression et l'unité de soupape, enfermant le tuyau de purge, étant prévue sur la paroi latérale opposée au réservoir sous pression, de sorte que le tuyau de purge s'étende essentiellement à travers le réservoir sous pression (1),
    caractérisé en ce que
    l'unité de soupape (12, 13) et le tuyau de purge (7) sont agencés de manière amovible dans le réservoir sous pression (1), le cylindre de soupape (12) étant relié au tuyau de purge (7) de manière amovible.
  2. Appareil à coup de souffle selon la revendication 1,
    caractérisé en ce que
    dans l'unité de soupape (12, 13), entre des pistons (13) et l'un des cylindres de soupape (12) à l'opposé d'un couvercle enfermant le côté de sortie de soupape (15), un espace avant de piston (30) est formé, dans lequel l'acheminement du fluide gazéiforme est prévu de sorte que l'espace avant de piston (30) du cylindre de soupape (12), entre les piston de soupape (13) et le couvercle (15), soit alimenté d'abord, puis le réservoir sous pression (1).
  3. Appareil à coup de souffle selon la revendication 3,
    caractérisé en ce que
    l'espace avant de piston (30) et le réservoir sous pression (1) sont reliés à une soupape de retour ou une soupape de non-retour (21) par l'intermédiaire d'un conduit.
  4. Appareil à coup de souffle selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le cylindre de soupape (12) comprend un couvercle (15) se situant en face du côté de sortie de soupape, lequel est fixé en particulier sur le cylindre de soupape (12) à l'aide d'une tubulure rotative (14), un joint (24), en particulier un joint torique, étant prévu entre la paroi de cylindre et la tubulure de couvercle, étant reliés de manière étanche au gaz à l'aide du couvercle (15) et du cylindre de soupape (12), de sorte qu'un espace avant de piston (30) soit formé.
  5. Appareil à coup de souffle selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    dans un des couvercles situés à l'opposé du côté de sortie de soupape (15) du cylindre de soupape (12), sont intégrés les éléments de commande de soupape, comme un distributeur 3/2 (19), une soupape de non-retour (18, 21, 23), un conduit de raccordement (22) ou analogues ou des parties de ceux-ci.
  6. Appareil de coup de souffle selon l'une quelconque des revendications précédentes
    caractérisé en ce que
    le cylindre de soupape (12) est relié de manière amovible au tuyau de purge (7) à l'aide de raccordements à goupilles (28) ou d'un vissage (11).
  7. Appareil de coup de souffle selon l'une quelconque des revendications précédentes
    caractérisé en ce que
    entre le cylindre de soupape (12) et le tuyau de purge (7), un piston de sortie de soupape (9), prévu en tant que siège de soupape, en particulier en acier au nickelchrome, lequel est relié de manière particulièrement ferme au tuyau de purge (7) de préférence soudé.
  8. Appareil de coup de souffle selon l'une quelconque des revendications précédentes
    caractérisé en ce que
    dans les fonds de réservoir du réservoir sous pression (1), au moins une, de préférence deux brides folles (3, 4) sont prévues, le tuyau de purge (7) étant relié de manière amovible avec, de préférence, vissé sur au moins une bride folle (3), de préférence à l'aide d'une ou plusieurs collerettes de fixation (5, 6), et l'unité de soupape (12, 13) est agencée, en particulier vissée, de préférence sur la seconde bride folle (4), en particulier par l'intermédiaire d'un couvercle (15).
  9. Appareil de coup de souffle selon l'une quelconque des revendications précédentes
    caractérisé en ce que
    le diamètre de l'ouverture de sortie (27) de l'unité de soupape (12, 13) ou des pistons de sortie de soupape (9) peut être plus petit que le diamètre du tuyau de purge (7), la longueur du tuyau de purge pouvant en particulier comprendre plusieurs fois le diamètre de celui-ci.
  10. Appareil de coup de souffle selon la revendication 9
    caractérisé en ce que
    l'ouverture de sortie (27) de l'unité de soupape peut être agrandie jusqu'au diamètre du tuyau de purge (7) de manière continue, progressivement ou graduellement, en particulier dans la zone des pistons de sortie de soupape (9).
  11. Appareil de coup de souffle selon l'une quelconque des revendications 7 à 10
    caractérisé en ce que
    les pistons de sortie de soupape (9) sont pourvus d'une ouverture de section (29) pour le fluide gazéiforme échappant, laquelle peut être pourvue d'un diamètre plus petit que le tuyau de purge (7) et l'ouverture de sortie (29) de la collerette (5, 6).
EP04025581A 2003-10-31 2004-10-27 Dispositif aérateur de décolmatage avec ventil placé dans la partie superieure de l'interieur d'un conteneur Active EP1528013B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20316754U 2003-10-31
DE20316754U DE20316754U1 (de) 2003-10-31 2003-10-31 Luftstoßgerät mit innenliegender, oben angeordneter Ventileinheit

Publications (2)

Publication Number Publication Date
EP1528013A1 EP1528013A1 (fr) 2005-05-04
EP1528013B1 true EP1528013B1 (fr) 2006-06-28

Family

ID=30010982

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04025581A Active EP1528013B1 (fr) 2003-10-31 2004-10-27 Dispositif aérateur de décolmatage avec ventil placé dans la partie superieure de l'interieur d'un conteneur

Country Status (3)

Country Link
EP (1) EP1528013B1 (fr)
AT (1) ATE331674T1 (fr)
DE (2) DE20316754U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010012637U1 (de) 2010-09-15 2010-11-18 Agrilux Beteiligungs Gmbh Luftstoßvorrichtung mit einem Luftstoßgerät mit daran angeordneter Heißbranddüse
US7837062B2 (en) 2006-03-10 2010-11-23 Martin Engineering Company Air cannon for removal of flowable material from a material handling system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070209648A1 (en) * 2006-03-10 2007-09-13 Martin Engineering Company Air cannon for removal of flowable material from a material handling system
DE202006016627U1 (de) * 2006-10-30 2006-12-21 Agrilux Beteiligungs Gmbh System von Luftstoßgeräten

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3788527A (en) * 1973-01-22 1974-01-29 Martin Eng Co Quick-release aerator for introducing high pressure air into a container to facilitate dispensing
US3915339A (en) * 1974-07-08 1975-10-28 Matson C G Quick-release aerator for introducing high pressure air into a container to facilitate dispensing
DE3223406C2 (de) * 1982-06-23 1985-10-31 VSR Engineering GmbH Fördertechnik, 4330 Mülheim Blasvorrichtung zum Beseitigen von Aufstauungen in Lagersilos für Schüttgut durch Luftstöße
DE3616990C1 (de) * 1986-05-21 1987-12-17 Agrichema Materialflusstechnik Luftstossgeraet zur Aufloesung von Materialaufstauungen in Lagersilos fuer Schuettgut
DE9404892U1 (de) * 1994-03-22 1994-05-19 Agrichema Materialflußtechnik GmbH, 55257 Budenheim Blasvorrichtung zum stoßartigen Ausblasen von Luft
US6702248B2 (en) * 2002-01-16 2004-03-09 Global Manufacturing, Inc. Blast aerator with springless, pneumatically dampened actuator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7837062B2 (en) 2006-03-10 2010-11-23 Martin Engineering Company Air cannon for removal of flowable material from a material handling system
DE202010012637U1 (de) 2010-09-15 2010-11-18 Agrilux Beteiligungs Gmbh Luftstoßvorrichtung mit einem Luftstoßgerät mit daran angeordneter Heißbranddüse

Also Published As

Publication number Publication date
EP1528013A1 (fr) 2005-05-04
DE20316754U1 (de) 2003-12-24
ATE331674T1 (de) 2006-07-15
DE502004000872D1 (de) 2006-08-10

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