EP4472908A1 - Sas de roue cellulaire - Google Patents

Sas de roue cellulaire

Info

Publication number
EP4472908A1
EP4472908A1 EP22839820.2A EP22839820A EP4472908A1 EP 4472908 A1 EP4472908 A1 EP 4472908A1 EP 22839820 A EP22839820 A EP 22839820A EP 4472908 A1 EP4472908 A1 EP 4472908A1
Authority
EP
European Patent Office
Prior art keywords
air
conveying
cellular wheel
line
wheel sluice
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.)
Pending
Application number
EP22839820.2A
Other languages
German (de)
English (en)
Inventor
Luigi Di Matteo
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.)
Di Matteo Forderanlagen & Co KG GmbH
Original Assignee
Di Matteo Forderanlagen & Co KG 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 Di Matteo Forderanlagen & Co KG GmbH filed Critical Di Matteo Forderanlagen & Co KG GmbH
Publication of EP4472908A1 publication Critical patent/EP4472908A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B65G53/40—Feeding or discharging devices
    • B65G53/46—Gates or sluices, e.g. rotary wheels
    • B65G53/4608—Turnable elements, e.g. rotary wheels with pockets or passages for material
    • B65G53/4625—Turnable elements, e.g. rotary wheels with pockets or passages for material with axis of turning perpendicular to flow
    • B65G53/4633—Turnable elements, e.g. rotary wheels with pockets or passages for material with axis of turning perpendicular to flow the element having pockets, rotated from charging position to discharging position, i.e. discrete flow

Definitions

  • the present invention relates to a cellular wheel sluice for conveying bulk goods in a pneumatic conveying system with a cellular wheel that can be rotated in a housing drum and has a plurality of chambers formed by cellular wheel webs, an air line via which conveying air can be introduced into at least one of the chambers essentially axially by a blower, and on which opposite side a conveying pipeline is arranged through which the bulk material can be conveyed with the conveying air.
  • DE 10 2004 001 965 B4 discloses a cellular wheel sluice for conveying secondary fuels, in which the conveying air is blown into dosing chambers between cellular wheel webs, with a reduction in the injection cross section being provided in the area of the injection opening in order to increase the speed of the air.
  • a high-speed air flow is required, but also a large volume flow.
  • the reduction of the cross section at the injection port is therefore disadvantageous.
  • DE 200 06 80 U1 discloses a cellular wheel sluice in which a blower attached to the front conveys the bulk material out of a chamber of the cellular wheel.
  • the cross-section of the chamber corresponds to the maximum pipe cross-section.
  • the disadvantage of this cellular wheel sluice is that the conveying capacity cannot be easily adjusted.
  • a similar star feeder is also disclosed in DE 101 17 187 C1, in which case the outlet side is larger than the inlet side. This results in high flow velocities within the rotary valve, which increases wear on the rotary valve components.
  • the wear on the rotary valve should be kept low.
  • a cellular wheel sluice having the features of claim 1.
  • bulk materials are conveyed into a pneumatic conveying system, whereby conveying air can be introduced essentially axially into at least one chamber by means of a blower via an air line, and on the opposite side the bulk material can be conveyed with the conveying air as a conveying flow via a conveying pipeline, with at least one additional line is provided, by means of the conveying air to the flow of bulk materials and conveying air can be fed.
  • the additional line can be driven by the same fan as the conveying pipeline or by a separate fan.
  • the volume flow of air on an input side of the housing drum of the rotary feeder can be made more flexible in at least one chamber of the rotary feeder for effective discharge.
  • the conveying air of the air line is divided into the chamber and the additional line, and the additional line can be introduced into the conveying flow of bulk materials and conveying air.
  • a part of the conveying air is then divided in front of the star feeder and then returned to the volume flow of conveying air and bulk material via the additional line at another point of the star feeder.
  • the volume flow in the additional line is preferably between 5 and 50%, in particular 10% to 30%, of the volume flow of the conveying air flow blown into the chamber of the star feeder.
  • the volume flow in the additional line can preferably be adjusted via a valve.
  • the valve can comprise a nozzle whose cross section can be changed, for example via a lever which brings about a mechanical adjustment of the cross section.
  • the cross section can also be changed via a drive, so that automatic control can be carried out.
  • the volume flow in the additional line can be flexibly adjusted by changing the cross-section, depending on how much air is required on the input side of the rotary valve.
  • a connection at the end of the additional line is preferably aligned at an angle of between 0° and 80° to the axis of the conveying line.
  • the additional line can be arranged at the connection at an angle to the radial direction of the conveying line in order to already introduce the air in the direction of the conveying flow.
  • the connection of the additional line can be arranged in relation to an axial extension of the housing drum in a range of between 0.3 and 4 in relation to the input side of the housing drum. In the range 0.3 to 1, the connection is therefore in the area of the housing drum, i.e. still on the at least one chamber on the cell wheel, which is emptied by the air flow.
  • connection for the additional line is located behind the housing drum, whereby the distance from the outlet side of the chamber can vary.
  • a number of additional lines can also be provided in different positions in order to return air to a number of positions.
  • At least one connection for the additional line is preferably arranged behind the housing drum.
  • a cone is fixed to a wall on the housing drum and forms a section of the conveying line.
  • the cone narrows the cross-section in the conveying direction and thus increases the flow rate.
  • An intermediate piece can preferably be arranged behind the cone, in which the feed line is converted from a rectangular cross section into a circular cross section on the outlet side, so that a circular feed line can then be connected to the intermediate piece.
  • the additional line is aligned at an angle of between 5° and 75° to the axis of the air line in order to introduce air from the air line into the additional line.
  • Figure 1 is a perspective view of a rotary valve according to the invention.
  • Figure 2 is a sectional view through the rotary valve of Figure 2.
  • a cellular wheel sluice 1 includes a housing drum 2, in which a cellular wheel
  • housing drum 2 On the top of the housing drum 2 there is an inlet channel 4 through which the bulk material enters the housing drum 2 can be introduced, for example polydisperse secondary fuels or other bulk materials.
  • the cellular wheel 3 comprises a multiplicity of cellular wheel webs which are essentially radial and which form a chamber between them in which bulk material can be conveyed.
  • the cell wheel can be designed, for example, as disclosed in DE 10 2019 100 198 A1.
  • An air line 14 is provided on an axial inlet side of the housing drum 2 and blows air into at least one chamber of the bucket wheel 3 via a connection 13 .
  • the air mixed with the bulk material is blown into a cone 5 on an axial wall 20 of the bucket wheel, which is adjoined by a transition piece 6 which can have a rectangular cross section on the inlet side and a circular cross section on the outlet side.
  • the transition piece e is connected via a connection 7 to a conveying pipeline 8 with a circular cross-section.
  • An additional line 10 is connected to the cone 5, by means of which conveying air can be introduced from the air line 14.
  • the additional line 10 comprises an air duct 11 made of a flexible material, such as a hose, or of a dimensionally stable material, such as a metal or plastic tube.
  • a valve 9 is provided on the additional line 10, which valve comprises a nozzle whose cross section can be changed.
  • a lever 16 is provided for adjusting the cross section of the nozzle, by means of which the cross section of the nozzle can be adjusted manually in order to change the volume flow.
  • a motor drive can also be provided for adjusting the nozzle.
  • the valve 9 can also be shut off completely.
  • the additional line 10 comprises an air line made of flexible material or of a dimensionally stable material such as plastic or metal.
  • the additional line 10 is connected to the connection 13 of the air line 14 via an opening 12 in order to divide the air flow and remove air in front of the housing drum 2 .
  • the air from the port 13 first flows through an opening in the wall 22 on the housing drum 2, optionally also through a nozzle 18 with a reduced cross-section in order to increase the flow rate.
  • the air thus accelerated is mixed with the bulk material in a chamber 15 of the star feeder 1 in order to form a conveying flow which is emptied from the chamber 15 and introduced into the cone 5 .
  • the mixture of bulk material and conveying air is then conducted from the cone 5 via the transition piece 6 into the conveying pipeline 8 .
  • the housing drum 2 On the output side of the housing drum 2 there is an axial wall 20 on which a bearing 21 for an axis 23 of the rotatable cell wheel 3 is provided.
  • the chamber 15 for emptying the cellular wheel 3 is located on the underside of the cellular wheel sluice 1 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Transport Of Granular Materials (AREA)

Abstract

L'invention concerne un sas de roue cellulaire (1) pour transporter des produits en vrac dans un système de transport pneumatique, comprenant une roue cellulaire (3), qui peut être mise en rotation dans un tambour de boîtier (2) et qui comprend de multiples chambres formées par des bandes de roue cellulaire, et une conduite d'air (14), par l'intermédiaire de laquelle de l'air de transport peut être introduit dans au moins l'une des chambres dans une direction sensiblement axiale par un ventilateur. Une conduite de transport (8), à travers laquelle le produit en vrac peut être transporté à l'aide de l'air de transport, est disposée sur le côté opposé à la conduite d'air, au moins une conduite supplémentaire (10) étant prévue, au moyen de laquelle l'air de transport peut être renvoyé de la conduite d'air (14) au flux de transport, constitué de produits en vrac et d'air de transport. De cette manière, les chambres (15) du sas de roue cellulaire (1) peuvent être efficacement vidées.
EP22839820.2A 2022-02-01 2022-12-20 Sas de roue cellulaire Pending EP4472908A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022102276.5A DE102022102276A1 (de) 2022-02-01 2022-02-01 Zellenradschleuse
PCT/EP2022/086840 WO2023147927A1 (fr) 2022-02-01 2022-12-20 Sas de roue cellulaire

Publications (1)

Publication Number Publication Date
EP4472908A1 true EP4472908A1 (fr) 2024-12-11

Family

ID=84888532

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22839820.2A Pending EP4472908A1 (fr) 2022-02-01 2022-12-20 Sas de roue cellulaire

Country Status (3)

Country Link
EP (1) EP4472908A1 (fr)
DE (1) DE102022102276A1 (fr)
WO (1) WO2023147927A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118579547B (zh) * 2024-06-28 2024-11-15 湖北楚民发农业科技有限公司 一种大米进料流量调节机构

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7312889U (de) 1975-04-10 Buehler Miag Gmbh Anordnung zum Einbringen von Fördergut in eine pneumatische Förderleitung
DE431561C (de) * 1923-11-23 1926-07-12 Wilhelm Hartmann Nach Lage und OEffnungsquerschnitt einstellbare Foerderduese fuer Saug- und Druckluft-Foerderanlagen
GB774980A (en) 1953-03-11 1957-05-15 Fuller Co Improvements in pneumatic conveying systems
GB746792A (en) * 1953-12-18 1956-03-21 Simon Ltd Henry Improvements relating to the pneumatic conveyance of granular or powdered materials
GB1012592A (en) 1963-08-29 1965-12-08 Baker Perkins Ltd Improvements in and relating to pneumatic conveying apparatus
US3291536A (en) * 1964-09-21 1966-12-13 David K Smoot Powdered material conveyor system
FR1525607A (fr) * 1966-10-28 1968-05-17 Franz Jos Waeschle Maschinenfa Sas à roue cellulaire, en particulier sas de soufflage pour des installations de transport de matière en grains grossiers ou en grains fins, au moyen d'air comprimé
DE2000680B2 (de) 1970-01-08 1974-04-04 Theo Dipl.-Ing. Carbon Nabenhülse, insbesondere für Fahrradnaben od.dgl. aus zusammengefügten Hülsen-Teilstücken
SU1006674A1 (ru) * 1981-06-16 1983-03-23 Московский Ордена Трудового Красного Знамени Гидромелиоративный Институт Устройство дл торкретировани
DD282355A7 (de) 1988-02-25 1990-09-12 Piesteritz Agrochemie Pneumatische foerderanlage fuer pulverfoermige schuettgueter
DE3842811A1 (de) * 1988-12-20 1990-06-28 Koellemann A J Gmbh Zellenradschleuse mit durchblaseinrichtung
DE20006800U1 (de) 2000-04-13 2000-07-13 Hess, Armin, 64757 Rothenberg Brennstoffdosiereinrichtung mit einer Zellenradschleuse und Zellenradschleuse
DE10117187C1 (de) 2001-04-05 2002-06-06 Energieberatunsbuero Hess Gmbh Brennstoffdosiereinrichtung mit einer Zellenradschleuse und Zellenradschleuse
DE102004001965B4 (de) 2004-01-13 2014-06-18 Schenck Process Gmbh Zellenradschleuse
AT8897U1 (de) 2006-01-24 2007-02-15 Tropper Maschinen Und Anlagen Vorrichtung zum dosierten zumischen einer rieselfähigen gutkomponente in einen gutstrom
DE202009017709U1 (de) 2009-12-31 2011-09-02 Heinz-Dieter Matuschak Zellenradschleuse sowie Förderanlage zum Fördern von Schüttgut
DE102019100198A1 (de) 2019-01-07 2020-07-09 Di Matteo Förderanlagen GmbH & Co. KG Zellenradschleuse

Also Published As

Publication number Publication date
WO2023147927A1 (fr) 2023-08-10
DE102022102276A1 (de) 2023-08-03

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