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EP0001422A1 - Dispositif pour le déversement pneumatique de particules fines d'un récipient et procédé pour sa mise en oeuvre - Google Patents

Dispositif pour le déversement pneumatique de particules fines d'un récipient et procédé pour sa mise en oeuvre Download PDF

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Publication number
EP0001422A1
EP0001422A1 EP78100972A EP78100972A EP0001422A1 EP 0001422 A1 EP0001422 A1 EP 0001422A1 EP 78100972 A EP78100972 A EP 78100972A EP 78100972 A EP78100972 A EP 78100972A EP 0001422 A1 EP0001422 A1 EP 0001422A1
Authority
EP
European Patent Office
Prior art keywords
container bottom
conveyor troughs
bottom according
material outlet
ventilation
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.)
Granted
Application number
EP78100972A
Other languages
German (de)
English (en)
Other versions
EP0001422B1 (fr
Inventor
Gerhard Balzau
Günter Kompa
Manfred Steinmann
Klaus Bode
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.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
Krupp Polysius AG
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 Krupp Polysius AG filed Critical Krupp Polysius AG
Publication of EP0001422A1 publication Critical patent/EP0001422A1/fr
Application granted granted Critical
Publication of EP0001422B1 publication Critical patent/EP0001422B1/fr
Expired 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
    • B65D88/72—Fluidising devices

Definitions

  • Container bottom for the pneumatic discharge of fine material and method for operating this container bottom
  • the invention relates to a container bottom for the pneumatic discharge of fine material, with a central material outlet zone, which has a constantly ventilated floor with at least one material outlet opening and a roof-like cover arranged at a distance above the floor, and also with a number of conveyor troughs running radially to the central material outlet zone which have an at least temporarily ventilated floor that is inclined towards the material outlet zone and are covered at the top by covers provided with material passage openings.
  • the invention further relates to a method for operating such a container bottom.
  • a container bottom of the type mentioned above is already known, for example, from DT-Gm 75 23 514 by the applicant. Compared to other known designs, it is characterized by a largely uniform drop in the pillar over the entire cross section.
  • This object is achieved in that the bottom of the central material discharge zone is arranged lower than the bottom of the conveyor troughs.
  • the bottom of the central material outlet zone is arranged approximately at the level of the bottom of the conveyor troughs (at the deepest, inner point), in the solution according to the invention the base of the central material outlet zone is substantially lower.
  • the material supplied by the channels can flow into the central material outlet chamber delimited by the floor and roof-like cover without difficulty, so that material jams in the area of the transition from the conveyor channels to the central material outlet zone can be avoided.
  • the uniform material drainage at the inner channel end ensures that the product passes through the product passage openings in the covers into the conveyor channels over the entire length of the channel and does not only pass through preferred openings located further inside.
  • the bottom of the central material discharge zone which is arranged lower according to the invention, thus creates in the discharge zone the space required for the material to be discharged (taking into account certain fluctuations in the quantity of material being discharged) without impairing the uniform and undisturbed material feed through the conveyor troughs.
  • a level measuring device is provided in the outlet chamber of the central material outlet zone bounded by the floor and the roof-like cover, the ventilation of the conveyor troughs being controlled as a function of the signal from this level measuring device such that the ventilation of the conveyor troughs during Reaching an upper fill level of the discharge chamber is reduced or switched off, but is increased or switched on when a lower fill level of the discharge chamber is reached.
  • This floor contains a concrete ceiling 2 with a central material outlet zone 3 and a number of conveyor channels 4 running radially towards the central material outlet zone 3.
  • the central Gutauslaufzone 3 includes a constantly ventilated floor 5 (vent port for this floor is not illustrated) as well as a roof-like cover 6.
  • a thus formed uslaufhunt 7 of the central Gutauslaufzone 3 is bounded laterally by a housing 8, the openings (for example 9a, 9b ) for the entry of the material fed from the conveyor troughs 4.
  • the conveyor troughs 4 are arranged in a uniform circumferential division in a slightly inclined position (falling from the outside inwards) and are supported on ribs 10.
  • the individual conveyor troughs 4 are provided with ventilation devices 11a, 11b in the region of the channel bottom, the radially inner ventilation device 11a and the radially outer ventilation device 11b being separately ventilated (connections 12a, 12b).
  • the conveyor troughs 4 are covered by covers 13 which are provided with openings 14a, 14b and 14c for the product.
  • the size of these material passage openings 14a to 14c increases somewhat from the inside to the outside.
  • the covers 13 of the conveyor troughs 4 run approximately parallel to the bottom of the associated conveyor troughs.
  • the conveying troughs 4 extend in the radial direction up to an outer diameter which corresponds to the largest clear diameter D of the silo 1.
  • a ventable lance 15 is arranged in the outer region of the conveyor troughs 4.
  • a ventilation pipe 16 is provided, the mouth 16a of which extends to just below the tip of the conical cover 6.
  • the vent pipe vertically arranged in the discharge chamber 7 at q is led laterally outwards through the outlet connection 18 adjoining the outlet opening 17 and projects into the pneumatic conveying trough 19 which conveys the material discharged from the silo 1. Further conveying and shut-off elements are provided between the outlet nozzle 18 and the conveying trough 19.
  • a fill level measuring device is provided in the outlet chamber 7 and contains a lower and an upper fill level detector 20 and 21, respectively.
  • the lower level indicator 21 is arranged relatively close to the bottom 5 of the chamber 7, while the upper level indicator 21 lies relatively close above the inlet openings 9a, 9b and sufficiently below the mouth 16a of the ventilation pipe 16.
  • the bottom 5 of the central material discharge zone 3 is substantially lower than the bottom of the conveyor troughs 4.
  • the difference in height is between 10 and 50%, preferably between 20 and 40%, of the container radius. at least about 0.5 m and at most about 4 m.
  • the sector-shaped zones 22 of the container bottom located between the individual conveyor troughs 4 have approximately the same inclination and height as the covers 13 of the adjacent conveyor troughs 4. These sector-shaped zones 22 located between the conveyor troughs can contain ventilation devices, which are indicated in FIG. 2 for the one sector-shaped zone with 23.
  • the sector-shaped zones 22 of the container bottom located between the individual conveyor troughs 4 form two roof-like inclined surfaces, preferably provided with ventilation devices, with a ridge edge running towards the central material outlet zone.
  • the conveying troughs 4 are expediently - as already mentioned above - in dependence on the signal of the level measuring device (detector 20, 21) in such a way that the aeration of the conveying troughs is switched off when the material level in the chamber 7 reaches the level of the upper detector 21 has reached while. the ventilation of the conveyor troughs is switched on or increased when the material level has dropped to the level of the lower level indicator 20.
  • the conveyor troughs 4 can be switched on in a known manner either simultaneously or - which is generally preferred - in a periodic sequence. In the latter case, either only one conveyor trough or several, for example two opposite conveyor troughs, can be ventilated at the same time.
  • the ventilation lances 15 are used in particular when particularly poorly flowable substances are to be supplied to the outlet chamber 7 through the conveyor troughs 4. These ventilation lances 15 can be operated in pulses such that the air outlet speed at the mouth of the lance is between 100 and 400 m / s, preferably between 200 and 300 m / s. This requires an air pressure in front of the lance of 0.5 to 1.5 bar (overpressure). Due to the brief, burst-like ventilation, the overall air requirement is very low.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Air Transport Of Granular Materials (AREA)
  • Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
  • Preparing Plates And Mask In Photomechanical Process (AREA)
  • Cleaning In General (AREA)
EP78100972A 1977-10-05 1978-09-22 Dispositif pour le déversement pneumatique de particules fines d'un récipient et procédé pour sa mise en oeuvre Expired EP0001422B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19772744853 DE2744853A1 (de) 1977-10-05 1977-10-05 Behaelterboden zum pneumatischen austrag von feingut
DE2744853 1977-10-05

Publications (2)

Publication Number Publication Date
EP0001422A1 true EP0001422A1 (fr) 1979-04-18
EP0001422B1 EP0001422B1 (fr) 1980-07-23

Family

ID=6020738

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78100972A Expired EP0001422B1 (fr) 1977-10-05 1978-09-22 Dispositif pour le déversement pneumatique de particules fines d'un récipient et procédé pour sa mise en oeuvre

Country Status (13)

Country Link
US (1) US4221509A (fr)
EP (1) EP0001422B1 (fr)
AT (1) AT359923B (fr)
BR (1) BR7806565A (fr)
DE (2) DE2744853A1 (fr)
DK (1) DK359778A (fr)
ES (1) ES473956A1 (fr)
FI (1) FI782473A7 (fr)
GR (1) GR64467B (fr)
IT (1) IT1099228B (fr)
MX (1) MX147164A (fr)
NO (1) NO151114C (fr)
ZA (1) ZA784559B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0078396A3 (en) * 1981-11-02 1985-07-10 Krupp Polysius Ag Process for the operation of a straight-through mixing silo
DE3501612A1 (de) * 1985-01-18 1986-07-24 Krupp Polysius Ag, 4720 Beckum Verfahren zum abzug von schuettgut aus einem silo
EP1980938A1 (fr) 2007-04-09 2008-10-15 Samsung Electronics Co., Ltd. Appareil et procédé d'interface entre des dispositifs numériques
EP2832208A1 (fr) * 2013-08-01 2015-02-04 Bintec GmbH & Co. KG Dispositif de centrage pour réguler l'écoulement vertical de produits en vrac pouvant s'écouler

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4391528A (en) * 1977-06-30 1983-07-05 Ibau Hamburg Ingenieurgisillschaft Endustreibau Mbh Silo system for mixing stored material
DE3014206C2 (de) * 1980-04-14 1983-04-28 Claudius Peters Ag, 2000 Hamburg Silo für Schüttgut
GB2089330B (en) * 1980-12-11 1985-02-27 British Gas Corp Discharging storage containers
DE3149080A1 (de) * 1981-10-14 1983-04-21 Spitzer Silo-Fahrzeugwerk GmbH & Co KG, 6957 Elztal Vorrichtung zum verhindern von kaminbildungen bei einem trichter fuer pneumatisch foerderbare schuettgueter
DE3609244C2 (de) * 1986-03-19 1996-09-12 Peters Ag Claudius Mischsilo für Schüttgut
DE3743637A1 (de) * 1987-12-22 1989-07-06 Krupp Polysius Ag Silo fuer schuettgut
US20080131235A1 (en) * 2006-12-01 2008-06-05 Dome Technology, Llc Mechanical reclaim systems with aeration and methods for use

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1832787U (de) * 1960-09-26 1961-06-08 Peters Ag Claudius Pneumatische entleerungsvorrichtung an silos fuer staubfoermiges und feinkoerniges gut.
DE7132212U (de) * 1971-12-02 Polysius Ag Belüftbarer Behälterboden zum pneumatischen Austragen von trockenem Feingut aus einem Behälter
GB1296647A (fr) * 1971-06-01 1972-11-15
AT303625B (de) * 1969-07-25 1972-12-11 Peters Ag Claudius Verfahren zum Mischen von Schüttgut in einem Mischsilo
DE7523514U (de) * 1975-11-13 Polysius Ag Behälterboden zum pneumatischen Austragen von Feingut
DE7531503U (de) * 1975-10-04 1976-01-29 Claudius Peters Ag, 2000 Hamburg Entleerungsvorrichtung an flachboedigen schuettgutsilos
DE2508981A1 (de) * 1975-03-01 1976-09-09 Peters Ag Claudius Verfahren und vorrichtung zur regelung der auflockerungsluftmenge in einer vorrichtung zum mischen von schuettgut

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1994899A (en) * 1932-02-25 1935-03-19 Schaub James Benton Air current conveyer
US2192287A (en) * 1935-09-06 1940-03-05 Goebels Paul Apparatus for feeding finely divided material
US3121593A (en) * 1961-02-23 1964-02-18 Simpson Herbert Corp Pneumatic material handling apparatus
US3104030A (en) * 1961-03-07 1963-09-17 Huron Portland Cement Company Pneumatic discharge systems
GB1004823A (en) * 1961-04-12 1965-09-15 Buehler Ag Geb Improvements in discharging means for silo bins
US3514158A (en) * 1968-04-15 1970-05-26 Fuller Co Pneumatic conveying apparatus
US3989310A (en) * 1972-02-10 1976-11-02 General American Transportation Corporation Proportioning device
GB1511957A (en) * 1975-07-23 1978-05-24 Polysius Ag Container base for the pneumatic discharge of fine material

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7132212U (de) * 1971-12-02 Polysius Ag Belüftbarer Behälterboden zum pneumatischen Austragen von trockenem Feingut aus einem Behälter
DE7523514U (de) * 1975-11-13 Polysius Ag Behälterboden zum pneumatischen Austragen von Feingut
DE1832787U (de) * 1960-09-26 1961-06-08 Peters Ag Claudius Pneumatische entleerungsvorrichtung an silos fuer staubfoermiges und feinkoerniges gut.
AT303625B (de) * 1969-07-25 1972-12-11 Peters Ag Claudius Verfahren zum Mischen von Schüttgut in einem Mischsilo
GB1296647A (fr) * 1971-06-01 1972-11-15
DE2508981A1 (de) * 1975-03-01 1976-09-09 Peters Ag Claudius Verfahren und vorrichtung zur regelung der auflockerungsluftmenge in einer vorrichtung zum mischen von schuettgut
DE7531503U (de) * 1975-10-04 1976-01-29 Claudius Peters Ag, 2000 Hamburg Entleerungsvorrichtung an flachboedigen schuettgutsilos

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
AUFBEREITUNGS-TECHNIK, Nr. 11, 1974, H. BACKSEN und R. TAPROGGE: "Kontinuierliches Misch- und Entleerungssystem für Silos und die Verwendung von glasfaserverstärkten Kunststoffen für die Herstellung pneumatischer Förderrinnen", Seiten 615-619 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0078396A3 (en) * 1981-11-02 1985-07-10 Krupp Polysius Ag Process for the operation of a straight-through mixing silo
DE3501612A1 (de) * 1985-01-18 1986-07-24 Krupp Polysius Ag, 4720 Beckum Verfahren zum abzug von schuettgut aus einem silo
EP1980938A1 (fr) 2007-04-09 2008-10-15 Samsung Electronics Co., Ltd. Appareil et procédé d'interface entre des dispositifs numériques
EP2832208A1 (fr) * 2013-08-01 2015-02-04 Bintec GmbH & Co. KG Dispositif de centrage pour réguler l'écoulement vertical de produits en vrac pouvant s'écouler

Also Published As

Publication number Publication date
NO151114B (no) 1984-11-05
DK359778A (da) 1979-04-06
IT7828414A0 (it) 1978-10-04
NO782727L (no) 1979-04-06
FI782473A7 (fi) 1979-04-06
IT1099228B (it) 1985-09-18
DE2744853A1 (de) 1979-04-12
DE2860089D1 (en) 1980-11-13
US4221509A (en) 1980-09-09
NO151114C (no) 1985-02-13
ZA784559B (en) 1979-08-29
EP0001422B1 (fr) 1980-07-23
MX147164A (es) 1982-10-19
BR7806565A (pt) 1979-05-02
AT359923B (de) 1980-12-10
ES473956A1 (es) 1979-12-16
ATA705878A (de) 1980-04-15
GR64467B (en) 1980-03-26

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