EP1362802B1 - Fond pour silos - Google Patents

Fond pour silos Download PDF

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Publication number
EP1362802B1
EP1362802B1 EP03010152A EP03010152A EP1362802B1 EP 1362802 B1 EP1362802 B1 EP 1362802B1 EP 03010152 A EP03010152 A EP 03010152A EP 03010152 A EP03010152 A EP 03010152A EP 1362802 B1 EP1362802 B1 EP 1362802B1
Authority
EP
European Patent Office
Prior art keywords
discharge opening
silo container
silo
nozzles
container base
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 - Lifetime
Application number
EP03010152A
Other languages
German (de)
English (en)
Other versions
EP1362802A2 (fr
EP1362802A3 (fr
Inventor
Paul Gerhard Dellmann
Hans Jürgen Sussann
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.)
Reimelt GmbH
Original Assignee
Reimelt GmbH
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 Reimelt GmbH filed Critical Reimelt GmbH
Publication of EP1362802A2 publication Critical patent/EP1362802A2/fr
Publication of EP1362802A3 publication Critical patent/EP1362802A3/fr
Application granted granted Critical
Publication of EP1362802B1 publication Critical patent/EP1362802B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • B65D88/26—Hoppers, i.e. containers having funnel-shaped discharge sections
    • B65D88/28—Construction or shape of discharge section
    • 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
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/54—Gates or closures
    • B65D90/62—Gates or closures having closure members movable out of the plane of the opening
    • B65D90/623—Gates or closures having closure members movable out of the plane of the opening having a rotational motion

Definitions

  • the invention relates to a silo container bottom with a Entry opening and a discharge opening, the one having smaller diameter than the entry opening and a cone-shaped wall with the entry opening is connected, and with a blowing device, which has a gas outlet with a blowing area in the area having the discharge opening.
  • Such a silo container bottom is known from US Pat. No. 3,578,216 known.
  • the discharge opens to a screw conveyor.
  • a tuyere directed towards the area is, which is surrounded by the cone-like wall.
  • the nozzle becomes either continuous or intermittent supplied with a compressed gas.
  • a valve Cam is controlled on the drive shaft of the Conveyor screw is arranged.
  • more can Be provided nozzles are being used in Silos stored. Such silos can reach a greater height and, above all, have a larger diameter.
  • the silo tank bottom arranged, the first approximation the shape a funnel.
  • the diameter of the entry opening the silo container floor corresponds to the diameter of the silo, more precisely of the silo cylinder.
  • the discharge opening is usually much smaller.
  • the Silo container bottom is usually solvable on the silo jacket attached. But it can also be integral with the silo coat be educated.
  • Fluid beds of this kind have basically proven. However, they require during the entire emptying process of the silo a steady influx of Gas. This is not only relatively expensive in operation. Of the ongoing influx of gas has in case of damage the base plate of the fluid bed the adverse Effect that in the distributor room entering bulk material transported by the gas into the bottom plate and it gets clogged.
  • DE 714 067 C shows a modified type of fluidized bed, where the cone-shaped wall with a variety from in the direction of the discharge opening directed openings is provided with from a pressure room with be supplied with a compressed gas.
  • the individual openings are arranged on circles, so that a stepped gas flow from top to bottom along the cone-shaped wall results.
  • GB 2 092 998 A describes another possibility for the formation of a silo container floor.
  • Discharge opening of the cone-shaped wall directed into a base.
  • the base is opposite the cone-shaped wall movable. It can be vibrated.
  • In the base is an upwardly directed dissipation cone arranged, arranged on the surface of a plurality of gas nozzles is.
  • the gas nozzles essentially expel gas under pressure parallel to the surface of the cone.
  • a Control device is provided to these gas nozzles to operate alternately in groups.
  • No. 2 569 085 A describes a silo container bottom an asymmetrically shaped wall between the entry opening and the discharge opening.
  • the discharge is closed by a cone which is used to remove the Material from the silo are vibrated can.
  • the cone is down from the discharge moved out.
  • the invention is based on the object, a silo container bottom indicate the emptying in a simple way a silo allows.
  • This task is the case of a silo container bottom mentioned type solved in that the wall with respect formed asymmetrically on the discharge is, the discharge opening closed by a drive is and the blower with the discharge opening closed actuated by a control device is that has a delay device, the Drive operated after the blower.
  • the delay device can also by a corresponding Control program be formed, so realized by software become. With the delay device is effected that the blowing device the product in the room fluidized above the discharge opening, as long as the flap is still in a position in which the Discharge opening is closed. Only then, when has fluidized a sufficient amount of product, the flap is opened at a time when the Product is still fluidized.
  • the deviation can be here ⁇ 10 °.
  • the formation of the wall perpendicular to Of course, the axis of the discharge requires that the Discharge practically unilaterally to the edge of the surface is approached, which covered by the entry opening becomes.
  • this has the additional advantage that one next to each other in an arrangement of several silo containers less piping takes to product from the juxtaposed silo containers, because the discharge openings are closer together are adjacent.
  • the gas outlet has a plurality of Nozzles which are annular around the discharge opening and / or at a closing the discharge opening Flap are arranged.
  • these nozzles it is possible to enter gas in the silo tank to the in the Silo container located product in the discharge opening to fluidize.
  • the use of nozzles has the advantage that the nozzles have a relatively sharp Gas jet can produce, at least in the field of Nozzle outlet. The gas creates itself, so to speak a moving distance to the product in the silo bottom to fluidize.
  • Several or even all nozzles can also be combined to form an annular gap nozzle.
  • the nozzles are directed into a space whose base area through the discharge opening or a discharge opening surrounding ring is limited and located in the remaining parallel to the axis of the discharge or itself opens upwards. So the nozzles are in one cylindrical or even funnel-shaped space directed, which rises above the discharge opening. Without the asymmetrical design of the wall of the container bottom this would mean that a substantially cylindrical area of the product "stamped out” is and through the discharge from the silo container fall out. The rest of the product would be like a Ring wall remain unchanged in the silo container.
  • the nozzles are laterally in the discharge opening directed in or parallel to the axis. Both Embodiments cause the cylindrical space above the discharge opening so exposed to gas is that the product located there fluidized becomes. If the nozzles are laterally in the discharge opening directed into it, should expediently a Flap or other closure for the discharge opening be provided.
  • a portion of the nozzles can be laterally in the Discharge opening into it and a part of the nozzles in parallel be directed to the axis. Also in this case results the desired fluidization of the product in the cylindrical space above the discharge opening.
  • the discharge opening is with a flap lockable, which has a drive. Leave it the removal of product from the silo container still better control, i. you do not need to that the product flow only by the blowing process of the gas is controlled.
  • the control device preferably controls the blowing device pulse-like manner. This has several advantages. On the one hand results from a pulse-like injection of gas in the silo tank bottom an improved fluidization effect on the product. On the other hand, the Blower with a reduced energy consumption operate.
  • auxiliary blowing openings are provided in the wall. These auxiliary blow holes are especially at the end the emptying of the silo container bottom advantageous when product residues settle on the wall.
  • Silo container bottom 3 has the same at its upper end Diameter as the shell 2 of the silo container.
  • 1 Product, which is located in the silo 1, passes therefore by the connection plane between the jacket 2 and the silo container bottom 3 into the interior 4 of the silo container bottom.
  • an entry opening 5 is present, through which the product from the silo container 1 into the interior 4 of the silo tank bottom 3 comes.
  • the silo tank bottom 3 has a discharge opening 6, which can be closed by a flap 7 is.
  • the flap is with solid lines in closed position and with dashed lines in open position shown.
  • the flap 7 has a only schematically illustrated drive 8, the she can pivot.
  • the drive 8 would be in plan view not visible in and of itself.
  • the discharge opening 6 is asymmetrical to the middle of the silo container bottom 3 arranged as shown in FIG. 1 to recognize.
  • the discharge opening 6 is arranged in this case, that a portion 9 of the wall 10 of the silo container bottom 3 perpendicular or at least nearly vertical stands.
  • nozzles 11 directed into the discharge opening 6 in.
  • Further nozzles 12 are provided, which after are directed above.
  • These nozzles 11, 12 are of a Blower 13 supplies.
  • the blowing device 13 operates impulsive, i. from the nozzles 11, 12 occur in short time intervals pressure surges of the gas, for example Compressed air, open.
  • Nozzles can also nozzle not shown or be provided on the flap 7, which through the Flap 7 are supplied through. In any case, can one several or even all nozzles 11, 12 too to summarize slit-shaped ring nozzles.
  • the nozzles 11, 12 are actuated, as long as the flap. 7 closed is.
  • a control device 14th provided that both the blowing device 13 and controls the drive 8 for the flap 7. She makes sure that at least at the beginning of the injection of gas in the interior 4 of the silo container bottom 3, the flap. 7 is closed or remains closed.
  • the nozzles 11, 12 generate in this way in a cylindrical or yourself upwardly opening space above the discharge opening 6, which is indicated by a dashed line 15, an area where the product is located in the interior 4 is fluidized.
  • This approximately cylindrical Room 16 is standing by the vertical Section 9 of the wall 10 limited. There can be a do not hold annular compressive stress in the product. Rather, the product slips down this wall and the hoop stress in the product breaks down.
  • auxiliary blowing holes 17 may be provided be, which also from the blowing device 13 be operated.
  • a valve 18 is provided, over which the auxiliary blowing openings 17 are controlled can.
  • the blowing device 13 has a compressed gas tank 19, that of a compressed gas source 20, for example a Compressor, supplied with compressed gas, such as air becomes.
  • the compressed gas source 20 is a "normal" Line 21 is connected to the compressed gas tank 19, i. with a conduit having a conventional cross-section.
  • the compressed gas source 20 a certain distance from the compressed gas tank 10 then the line a certain, no longer negligible Flow resistance on. But as long as through the line 21 only a comparatively small amount of compressed gas flows, the flow losses are tolerable.
  • the compressed gas tank 19 is connected via a line 22 with the Nozzles 11, 12 connected.
  • the line 22 is short, i. the compressed gas tank 19 is in the immediate vicinity the discharge opening 6 is arranged, and the line 22nd has a relatively large cross-section.
  • a valve 23 is arranged, which is controlled by the control device 14 is controlled. If now the valve 23 is opened, then the compressed gas can escape from the tank 19 quasi abruptly through the line 22 to the nozzles 11, 12 discharged and so a pressure surge in the area 16 in the interior of the silo container bottom 3 can.
  • the valve 23 is closed again and the compressed gas tank 19 is recharged.
  • the controller 14 controls, as explained above, not only the valve 23, but also the drive 8 for the flap 7 and that such that the flap 7 only is opened after the product in the area 16 through a predetermined number of pressure surges fluidized has been.
  • the flap 7 has been opened, then is a further fluidization of the product in the interior 4 of the silo container bottom 3 usually not required but the silo 1 runs after once it has been triggered, empty.
  • the idling can be interrupted by the Flap 7 is closed again.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Storage Of Harvested Produce (AREA)
  • Glass Compositions (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Claims (10)

  1. Fond pour silo (3) avec une ouverture d'entrée (5) et une ouverture de sortie (6) qui comporte un plus faible diamètre que l'ouverture d'entrée (5) et qui est reliée à l'ouverture d'entrée (5) par le biais d'une paroi formée comme un cône (10), et avec un dispositif de soufflage (13) lequel comporte une sortie de gaz (11, 12) avec une zone de soufflage dans la région de l'ouverture de sortie (6), caractérisé en ce que la paroi (10) est conçue de manière asymétrique par rapport à l'ouverture de sortie (6), l'ouverture de sortie (6) peut être fermée au moyen d'un entraínement (8) et lorsque l'ouverture de sortie (6) est fermée le dispositif de soufflage (13) peut être actionné par le biais d'un dispositif de commande (14), lequel comporte un dispositif retardateur qui actionne l'entraínement (8) après le dispositif de soufflage (13).
  2. Fond pour silo selon la revendication 1, caractérisé en ce que la paroi (10) au niveau d'une section (9) de son périmètre est presque parallèle à l'axe de l'ouverture de sortie (6).
  3. Fond pour silo selon la revendication 1 ou 2, caractérisé en ce que la sortie de gaz comporte une majorité de buses (11, 12) qui sont disposées en forme d'anneau autour de l'ouverture de sortie (6) et/ou au niveau d'une trappe fermant l'ouverture de sortie.
  4. Fond pour silo selon la revendication 3, caractérisé en ce que les buses (11, 12) sont dirigées vers un espace (16) dont la surface est délimitée par l'ouverture de sortie (6) ou par un anneau entourant l'ouverture de sortie et espace qui s'étend par ailleurs parallèlement à l'axe de l'ouverture de sortie (6) ou en s'ouvrant vers le haut.
  5. Fond pour silo selon la revendication 4, caractérisé en ce que les buses (11, 12) sont dirigées latéralement dans l'ouverture de sortie (6) ou parallèles à l'axe.
  6. Fond pour silo selon la revendication 4, caractérisé en ce qu'une partie des buses (11) est dirigée latéralement dans l'ouverture de sortie (6) et une partie des buses (12) est dirigée de manière parallèle à l'axe.
  7. Fond pour silo selon l'une des revendications 1 à 6, caractérisé en ce que l'ouverture de sortie (6) peut être fermée avec une trappe (7) qui comporte un entraínement (8).
  8. Fond pour silo selon l'une des revendications 1 à 7, caractérisé en ce que le dispositif de commande (14) commande le dispositif de soufflage (13) par impulsions.
  9. Fond pour silo selon l'une des revendications 1 à 8, caractérisé en ce que le dispositif de soufflage (13) comporte un réservoir de gaz sous pression (19) lequel est disposé à proximité de l'ouverture de sortie (6) et lequel est relié à la sortie de gaz (11, 12) par une conduite (22) dont la résistance à l'écoulement est plus faible que celle d'une conduite de gavage (21) du réservoir de gaz sous pression (19).
  10. Fond pour silo selon l'une des revendications 1 à 9, caractérisé en ce que des orifices de soufflage auxiliaire (17) sont prévus dans la paroi (10).
EP03010152A 2002-05-17 2003-05-06 Fond pour silos Expired - Lifetime EP1362802B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10221964A DE10221964B4 (de) 2002-05-17 2002-05-17 Silobehälterboden
DE10221964 2002-05-17

Publications (3)

Publication Number Publication Date
EP1362802A2 EP1362802A2 (fr) 2003-11-19
EP1362802A3 EP1362802A3 (fr) 2004-01-21
EP1362802B1 true EP1362802B1 (fr) 2005-11-23

Family

ID=29265336

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03010152A Expired - Lifetime EP1362802B1 (fr) 2002-05-17 2003-05-06 Fond pour silos

Country Status (3)

Country Link
EP (1) EP1362802B1 (fr)
AT (1) ATE310689T1 (fr)
DE (2) DE10221964B4 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010007631U1 (de) 2010-01-29 2011-07-25 Feldbinder Spezialfahrzeugwerke Gmbh Auslaufvorrichtung für Schüttgut
DE102011002551A1 (de) 2010-01-29 2011-08-04 Feldbinder Spezialfahrzeugwerke GmbH, 21423 Auslaufvorrichtung für Schüttgut

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8387824B2 (en) 2005-07-02 2013-03-05 Syngenta Participations Ag Apparatuses and methods for bulk dispensing
CA2727764C (fr) 2005-07-02 2014-03-18 Syngenta Participations Ag Appareil et procede permettant de coordonner la distribution automatique de produit en vrac et de conditionnement
GB2493460A (en) * 2012-08-02 2013-02-06 Linde Ag Fire Prevention in Storage Silos
CN109335357B (zh) * 2018-12-06 2023-08-15 马钢集团矿业有限公司 一种矿料仓口疏通装置
CN112960401A (zh) * 2021-01-29 2021-06-15 江苏科瑞恩自动化科技有限公司 一种用于微型橡胶密封圈的自动上料机构

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE714067C (de) * 1938-06-08 1941-11-20 Hannoversche Maschb Act Ges Vo Vorratsbehaelterauslauftrichter fuer staubfoermiges Gut mit einer sich daran anschliessenden Entnahmefalleitung
US2569085A (en) * 1944-08-17 1951-09-25 Wood David Howard Hopper, with valve closure having vibrator therein, for sand and other divided material
DE839330C (de) * 1950-10-28 1952-05-19 Natronzellstoff Und Papierfabr Vorrichtung zum Abfuellen schwer fliessbarer Fuellgueter, vornehmlich fuer Sackfuellmaschinen mit automatischer Waage
DE1055447B (de) * 1956-05-02 1959-04-16 Friedrich Laas Auflockerungseinrichtung an Behaeltern, Bunkern od. dgl.
US3578216A (en) * 1968-12-03 1971-05-11 William S Pearson Prevention of arching compaction of discrete material in gravity feed hoppers
GB2092998A (en) * 1981-02-13 1982-08-25 Nat Res Dev Handling materials of powder form
US5096096A (en) * 1990-07-16 1992-03-17 Thomas Conveyor Company Fluidized bed discharge bin
DE19518360C2 (de) * 1995-05-19 1997-08-21 Reimelt Dietrich Kg Fließbett

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010007631U1 (de) 2010-01-29 2011-07-25 Feldbinder Spezialfahrzeugwerke Gmbh Auslaufvorrichtung für Schüttgut
DE102011002551A1 (de) 2010-01-29 2011-08-04 Feldbinder Spezialfahrzeugwerke GmbH, 21423 Auslaufvorrichtung für Schüttgut

Also Published As

Publication number Publication date
EP1362802A2 (fr) 2003-11-19
ATE310689T1 (de) 2005-12-15
EP1362802A3 (fr) 2004-01-21
DE50301717D1 (de) 2005-12-29
DE10221964B4 (de) 2005-11-10
DE10221964A1 (de) 2003-11-27

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