EP0021999B1 - Belüftungsvorrichtung durch plötzliches Druckluftabladen - Google Patents
Belüftungsvorrichtung durch plötzliches Druckluftabladen Download PDFInfo
- Publication number
- EP0021999B1 EP0021999B1 EP19800400904 EP80400904A EP0021999B1 EP 0021999 B1 EP0021999 B1 EP 0021999B1 EP 19800400904 EP19800400904 EP 19800400904 EP 80400904 A EP80400904 A EP 80400904A EP 0021999 B1 EP0021999 B1 EP 0021999B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- compressed air
- discharge
- inlet orifice
- reservoir
- valve
- 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.)
- Expired
Links
- 238000005273 aeration Methods 0.000 title description 8
- 239000012528 membrane Substances 0.000 claims description 22
- 238000003860 storage Methods 0.000 claims description 8
- 238000009423 ventilation Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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 aeration device by sudden discharge of compressed air, in particular to facilitate the flow of stored materials, of the type comprising a compressed air storage tank provided with an inlet orifice capable of '' be connected to a compressed air supply source via a three-way valve, a discharge pipe of the stored compressed air, which pipe extends substantially over the entire length of the tank and extends to the exterior of the tank to open into an enclosure to be aerated, and valve means for firstly, communicating the interior of the tank, except said pipe, with the air supply orifice compressed, and on the other hand, in a second step close the inlet port and put the interior of the tank in communication with said discharge line, the inlet port connected to the compressed air supply source being arranged in the axis of the said discharge line, at a distance from the internal end of the latter which constitutes a valve seat.
- Such a device capable of recharging from ordinary sources of compressed air is thus provided for producing intermittently, sudden discharges of a predetermined volume of compressed air, in the very mass of the products which it is desired to aerate and whose flow we want to improve.
- the existing devices are relatively expensive and time-consuming to manufacture because they require the use of a machined piston.
- the presence of a piston of fairly large mass subjected to sudden backward movements constitutes a drawback insofar as in particular the kinetic energy used is not negligible.
- the present invention aims precisely to remedy the aforementioned drawbacks and to allow the production of a shock wave aeration device which is both safe, inexpensive, easy to manufacture, and of greater efficiency thanks to a simpler design of the various components.
- valve means comprise at least one flexible membrane interposed between the internal end of the discharge line and said inlet port, and capable of alternately closing off the only internal end of the discharge line when the pressure of the compressed area of the power source is applied to the port inlet, and the closure of the single inlet orifice when the pressure of the compressed air from the supply source is no longer exerted thereon, and said membrane is arranged substantially perpendicular to the axis of the exhaust pipe and the inlet orifice and has at least one perforation in its part located between the internal end of the exhaust pipe and the part forming the outer wall of the compressed air storage tank.
- the inlet orifice is formed in a removable piece attached to the end of the storage tank which is close to the internal end of the exhaust pipe and has an opening of section greater than the section of the exhaust pipe and the peripheral part of the membrane of the valve means is fixed between the end of the storage tank and said removable removable part.
- said removable end piece attached has an internal part of substantially frustoconical shape.
- the central part of the valve membrane is clamped between two plates. rigid cooperating respectively with the internal end of the exhaust pipe and the contour of the inlet orifice forming valve seats.
- FIG. 1 shows a container or container 100, such as a hopper, filled with pulverulent or granular products 101. It is desirable that such a hopper 100 is static and not equipped with a vibrator in order to avoid settling of the product 101 which must flow by gravity and escape through the lower opening 103.
- a vibrator in order to avoid settling of the product 101 which must flow by gravity and escape through the lower opening 103.
- bridges, chimneys which naturally tend to form by the agglomeration of particles of product 101, in particular in the vicinity of the walls of more slight slope such as 104, one or more devices 1 for aeration by sudden discharge of compressed air are mounted on the same wall of the container 100.
- Each aeration device 1 essentially comprises a reservoir 10 for storing compressed air, extended by an exhaust duct 9 provided with a coupling device, for example with a flange 91, to facilitate mounting of the device 1 on the container 100.
- the exhaust duct 9 or an associated duct extends to the interior of the container 100.
- an assembly 8 controls the arrival of compressed air in the tank proper 10 from a pipe 7 connected via a three-way valve 6 to a normal network 4 for supplying compressed air, for example at a pressure of between approximately 4 and 16 bars .
- the valve 6 controls the filling of the reservoir 10 by putting the pipe 7 into communication with the compressed air supply network 4, and the emptying of the tank 10 by putting the pipe 7 into communication with the exhaust 5.
- the assembly 8 of the aeration device 1 automatically causes the immediate discharge of the compressed air contained in the reservoir 10, through the conduit 9 to produce a shock wave 102 inside container 100.
- a reservoir 10 the capacity of which depends on the applications envisaged and can for example be between approximately 10 and 150 liters, but can also reach values very upper, is formed for example from two caps 11, 12 made of sheet steel welded in a sealed manner to form a pressure-resistant enclosure.
- One of the ends of the reservoir 10, for example the cap 11 1, is crossed by an exhaust duct 9 whose section is very substantially smaller than the reservoir section 10.
- the axial duct 9 which emerges outside the reservoir 10 is tightly fixed, for example by welding, to the cap 11 and is extended by a portion 90 over the major part of the length of the reservoir 10. As can be seen in FIG.
- the cap 12 can be provided an opening 13 of diameter greater than the diameter of the conduit 90 and a part 14 can be attached to the cap 12, around the opening 13.
- the part of the conduit 90 can relate beyond the surface defined by the simple cap 12 and ending in the vicinity of the end of the attached part 14.
- the end 92 of the conduit 90 is provided to constitute a valve seat intended to cooperate with a valve 2 integral with a membrane 22 arranged transversely to the cond section uit 90.
- the flexible membrane 22 which may for example be made of rubber is fixed by its periphery to the end 14 of the reservoir 10.
- the membrane 22 seals part 14 with the exception of one or more small calibrated orifices 26 formed in the membrane in its crown-shaped part disposed between the internal end of the conduit 92 of the conduit 90 and the part of the wall 14 of the reservoir 10.
- An insert 8 provided with an inlet orifice 81 is removably attached to the end portion 14 of the tank 10 by connecting means such as bolts 83, 84 engaged in orifices 82.
- the bottom part removable 8 in particular clamps the peripheral part of the membrane 22 on the part 14.
- a small free space is provided between the internal wall of the bottom part 8 and the end 92 of the section of conduit 90 so as to allow a certain clearance of the membrane 22 carrying the valve 2 between the end 92 of the axial exhaust duct and the internal wall 30 of the bottom piece 8.
- An axial inlet orifice 81 is formed in the bottom piece 8 and is provided for be connected to a pipe 7.
- the internal wall 30 of the bottom part 8 can for example be of frustoconical shape and delimits with the membrane 2 a chamber 31 which is placed in communication with the pipe 7 by the inlet orifice 81 and with the tank interior 10 by d calibrated orifices 26.
- the membrane 22 can be sandwiched between two plates 21, 23 cooperating respectively with the end 92 of the section duct 90 and a bearing 85 of the internal wall 30 of the bottom part 8.
- the bearing 85 constitutes a valve seat for the plate 23 around the inlet orifice 81.
- the plates 21, 23 are assembled at the membrane 22 in a leaktight manner, using an assembly means such as 24.
- a spring 25 can cooperate with the valve 21, 22, 23 to adjust the stiffness of the membrane 22.
- the valve 6, which is a conventional 3/2 way valve or solenoid valve, puts the pipe 7 in communication with the source 4 of compressed air supply.
- the compressed air enters through the inlet orifice 81 of the bottom piece 8 into the chamber 31 and pushes the membrane 22 which presses the valve 21 against the end 92 of the section of conduit 90 thus closing the opening of this latest.
- the compressed air then passes from the chamber 31 inside the tank 10, except the conduit 90, through the orifices 26 of the membrane 22.
- the interior of the conduit 90 being at atmospheric pressure, the assembly 2 remains plated against the end 92 of the conduit 90 during the entire time of filling of the reservoir 10 with compressed air.
- the cycle can start again and the tank 10 is recharged as indicated above by placing the pipe 7 in communication with the compressed air supply 4 by the valve 6.
- the device according to the invention is particularly remarkable in that the supply of compressed air is operated axially from the inlet orifice 81, as is the discharge through the axial tube 9.
- the arrival and departure the compressed air line contributes to ensuring easy operation and on the system, all the more since the only mobile assembly is constituted by the membrane 22 which with its associated elements is of low mass and has a limited clearance.
- the device according to the invention is particularly compact because the valve means constituted by the assembly 2 forming a valve and the bottom part 8 have a limited bulk in the axial direction.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
- Air Transport Of Granular Materials (AREA)
Claims (4)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7915704 | 1979-06-19 | ||
FR7915704A FR2459188A1 (fr) | 1979-06-19 | 1979-06-19 | Dispositif d'aeration par decharge brusque d'air comprime |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0021999A1 EP0021999A1 (de) | 1981-01-07 |
EP0021999B1 true EP0021999B1 (de) | 1983-04-27 |
Family
ID=9226805
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19800400904 Expired EP0021999B1 (de) | 1979-06-19 | 1980-06-19 | Belüftungsvorrichtung durch plötzliches Druckluftabladen |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0021999B1 (de) |
DE (1) | DE3062887D1 (de) |
FR (1) | FR2459188A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104828896A (zh) * | 2015-05-15 | 2015-08-12 | 浙江沐源环境工程有限公司 | 一种密闭式粉末活性炭投加装置 |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4449644A (en) * | 1981-06-18 | 1984-05-22 | Ludlow Industries, Inc. | Blast aerator for fluidizing granular material |
DE3151026A1 (de) * | 1981-12-23 | 1983-07-07 | Agrichema Handelsgesellschaft für Chemikalien, Industrieerzeugnisse und landwirtschaftlichen Bedarf mbH, 6501 Budenheim | Luftstossgeraet |
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 |
FR2547639B1 (fr) * | 1983-06-15 | 1985-10-25 | Simoens Herve | Piston de valve d'alimentation d'une capacite puis de decharge brutale de cette capacite et valve de decharge brutale pourvue de ce piston |
NL8501483A (nl) * | 1985-05-24 | 1986-12-16 | Tech Bureau Knol B V | Luchtstootapparaat. |
FR2589548B1 (fr) * | 1985-10-31 | 1988-03-11 | Standard Ind Sa | Valve d'alimentation d'une capacite puis de decharge brutale de cette capacite |
CA2238235C (en) * | 1997-05-30 | 2001-12-11 | Jason R. Hurdis | Aerator valve assembly |
US5853160A (en) * | 1997-12-23 | 1998-12-29 | Martin Engineering Company | Aerator valve assembly |
JP3549501B2 (ja) | 2001-07-23 | 2004-08-04 | カネキタ株式会社 | エアパルサおよびそのエアパルサを利用する装置 |
DE602005020375D1 (de) | 2004-01-14 | 2010-05-20 | Martin Eng Co | Druckbetriebene Belüftungsventilanordnung |
Family Cites Families (1)
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 |
-
1979
- 1979-06-19 FR FR7915704A patent/FR2459188A1/fr active Granted
-
1980
- 1980-06-19 DE DE8080400904T patent/DE3062887D1/de not_active Expired
- 1980-06-19 EP EP19800400904 patent/EP0021999B1/de not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104828896A (zh) * | 2015-05-15 | 2015-08-12 | 浙江沐源环境工程有限公司 | 一种密闭式粉末活性炭投加装置 |
Also Published As
Publication number | Publication date |
---|---|
FR2459188B1 (de) | 1983-05-06 |
EP0021999A1 (de) | 1981-01-07 |
DE3062887D1 (en) | 1983-06-01 |
FR2459188A1 (fr) | 1981-01-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0021999B1 (de) | Belüftungsvorrichtung durch plötzliches Druckluftabladen | |
EP0511894B1 (de) | Schaumauftragvorrichtung | |
EP0642839B1 (de) | Verfahren und Vorrichtung zum Spenden und Lagern eines, in einem mit Treibgas unter Druck gesetzten Behälter enthaltenen, flüssigen Produktes | |
EP0581947B1 (de) | Behälter zum spenden von flüssigkeiten | |
FR2516011A1 (fr) | Procede et dispositif pour la fabrication de pieces moulees a partir d'une masse fluide | |
EP0522954B1 (de) | Oberflächenspannungsbehälter mit Mehrfachausgangleistungen | |
FR3003245A1 (fr) | Reception, vidage et transfert sous pression d'une grande quantite de fluide biopharmaceutique en vue d'un traitement ulterieur. | |
WO2007080258A2 (fr) | Dispositif de manipulation d'un produit pulverulent | |
EP0120171B1 (de) | Vorrichtung zum Reinigen eines Füllkopfes ohne seine Demontage | |
EP0903255A1 (de) | Pumpvorrichtung und Kraftfahrzeug mit einer solchen Vorrichtung | |
CA2394661A1 (fr) | Dispositif de transfert de materiaux pulverulents, et application a l'alimentation d'un metal en fusion en materiau pulverulent | |
FR2872879A1 (fr) | Support antivibratoire hydraulique a commande pneumatique | |
FR2686358A1 (fr) | Raccord pour chasse d'eau. | |
EP1633657B1 (de) | Dosierventil zur abgabe eines flüssigen produktes | |
FR2572925A1 (fr) | Dispositif pour le polissage des dents | |
EP1497201B1 (de) | Spender für flüssige produkte | |
FR2562525A1 (fr) | Manche de chargement a filtration integree | |
FR2864910A1 (fr) | Filtre a liquide pour moteur a combustion interne et cartouche filtrante interchangeable pour un tel filtre. | |
EP0225416B1 (de) | Pneumatische, diskontinuierlich arbeitende Einrichtung zum Pumpen von geladenen Flüssigkeiten | |
EP2174891A1 (de) | Vorrichtung zum Verflüssigen von körnigen Stoffen, Behälter mit einer solchen Vorrichtung, Verfahren zur Aufbewahrung von körnigen Stoffen und Verfahren zum Verflüssigen von körnigen Stoffen in einem Behälter | |
FR2831079A1 (fr) | Soupape de decharge instantanee de grands debits d'aeriformes pour fluidification de materiaux granulaires et/ou pulverulents | |
FR2550957A1 (fr) | Dispositif d'alimentation de particules comportant une alimentation de reserve | |
EP0453339B1 (de) | Vorrichtung zum Entnehmen von Gas aus einem Tankbehälter | |
CH590768A5 (en) | Tank for transporting two different bulk products - has chambers separated by central flexible membrane extending into some or all of tank capacity | |
EP1129968A1 (de) | Verstellbare Vorrichtung zur Förderung mittels Schwerkraft von pulverförmigem oder körnigem Material |
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 |
|
AK | Designated contracting states |
Designated state(s): DE IT SE |
|
17P | Request for examination filed |
Effective date: 19810703 |
|
ITF | It: translation for a ep patent filed | ||
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Designated state(s): DE IT SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19830427 |
|
REF | Corresponds to: |
Ref document number: 3062887 Country of ref document: DE Date of ref document: 19830601 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19930621 Year of fee payment: 14 |
|
ITTA | It: last paid annual fee | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19950301 |
|
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 |