EP0349679B1 - Membranpresse mit innerem Waschsystem - Google Patents

Membranpresse mit innerem Waschsystem Download PDF

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Publication number
EP0349679B1
EP0349679B1 EP88202613A EP88202613A EP0349679B1 EP 0349679 B1 EP0349679 B1 EP 0349679B1 EP 88202613 A EP88202613 A EP 88202613A EP 88202613 A EP88202613 A EP 88202613A EP 0349679 B1 EP0349679 B1 EP 0349679B1
Authority
EP
European Patent Office
Prior art keywords
channels
diaphragm
manifold
vessel
juice
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
EP88202613A
Other languages
English (en)
French (fr)
Other versions
EP0349679A2 (de
EP0349679A3 (en
Inventor
Francesco Melandri
Primo Melandri
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.)
Diemme SpA
Original Assignee
Diemme SpA
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 Diemme SpA filed Critical Diemme SpA
Priority to AT88202613T priority Critical patent/ATE94463T1/de
Publication of EP0349679A2 publication Critical patent/EP0349679A2/de
Publication of EP0349679A3 publication Critical patent/EP0349679A3/en
Application granted granted Critical
Publication of EP0349679B1 publication Critical patent/EP0349679B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/22—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using a flexible member, e.g. diaphragm, urged by fluid pressure

Definitions

  • diaphragm presses consisting of a cylindrical vessel rotating about its longitudinal axis and divided into two parts by a deformable diaphragm disposed in proximity to the vessel axis and substantially parallel thereto.
  • One part of the vessel is intended to receive a pressurised fluid and its other part is intended to receive the product to be pressed.
  • Presses of this type are also known in which the juice pressed from the product is collected through perforated channels in the inner wall of the vessel which feed the juice either to a common external manifold or to a closed false bottom located at one end of the vessel.
  • Such a press is shown in AT-B-350 913
  • the object of the present invention is to provide a diaphragm press comprising simple means operable in accordance with an automatic cycle to ensure perfect washing of the juice collection channels.
  • Figure 1 is a side view of the invention with parts shown in section.
  • Figure 2 is a section on the line II-II of Figure 1 to an enlarged scale.
  • Figure 3 is a cross-section through a drainage channel during the final wash stage, to an enlarged scale.
  • the diaphragm 8 divides the vessel 7 into two diametrically opposite parts, of which one (the lower one in Figures 1 and 2) is intended to contain the product to be pressed, whereas the other (the higher one in said figures) is intended to be connected to a compressor/vacuum unit.
  • This latter indicated schematically at 44 in Figure 1, is intended to put the region behind the diaphragm 8 under vacuum and also to put the same region under pressure in the manner well known to experts of the art and therefore not described as it does not form part of the invention.
  • the compressor/vacuum unit 44 is connected to the vessel 7 by a sealed rotary coupling 33 associated with the hollow journal 6 (see Figure 1), the product to be pressed being loaded, again by way of a rotary sealed coupling (not shown), through the hollow journal 5.
  • This latter is intended to be connected to a convenient feed pump, not shown, there also being associated in known manner with the hollow journal 5 a pressure switch arranged to feed a signal for halting said pump when the chosen working pressure is reached in the vessel 7, and a bag valve which seals the journal 5 after stoppage of the feed pump.
  • a self-braking geared motor unit with two or more speeds able to operate both continuously and intermittently to drive a chain which passes about a sprocket 9 fixed to the journal 6 ( Figure 1).
  • a central control unit 66 which can be of electrical or electronic type and by which the pressing cycles can be selected on the basis of the characteristics of the product to be pressed.
  • the control unit 66 also automates the wash stage described hereinafter.
  • each individual channel 10 communicates by way of a corresponding external elbow 11 with a manifold 12 in the form of an open ring and comprising a series of discharge ports 13. These latter are directed towards an annular collection element 14 supported by a guard 150 secured to the frame 22, and is arranged to convey the juice to an underlying tray 77 provided with a discharge outlet 88.
  • the four lateral groups of three channels 10 and the central pair of adjacent channels 10 communicate with respective secondary manifolds 15 for collecting the wash water, these being connected to a main manifold 17 by an external elbow 16.
  • Said elbows 16 are valved by corresponding solenoid valves 160 controlled by the central control unit 66, from the main manifold 17 there branching a feed pipe 18 connected to the hollow journal 6. Finally, said journal 6 is connected by way of a rotary sealed coupling (not shown) to a pumping unit 99 ( Figure 1) controlled by the central control unit 66 and connected to a convenient source of water.
  • the vessel 7 On termination of the pressing cycle, the vessel 7 is as shown in Figure 1, a vacuum then being created behind the diaphragm 8 ( Figure 2) and the pneumatic piston-cylinder unit 19 receiving the enabling signal to withdraw the cover 20 (see Figure 1) to uncover a lateral mouth provided on the vessel 7 through which the grape cake is discharged.
  • said discharge mouth for the grape cake lies between the central channels 10 of said series of channels.
  • the cover 20 After discharging the grape cake the cover 20 is closed again and air is fed behind the diaphragm 8.
  • the pumping unit 99 receives the enabling signal to start, and the valves 160 are opened in succession for a predetermined period, of such a length as to enable all the valves to open and then close before a convenient pressure, such as of the order of 0.3-0.4 bar, has built up behind the diaphragm.
  • valves 160 are again made to open in succession for a predetermined period which can be selected at will through the central control unit 66, after which, when the last valve 160 of the series has closed, the pumping unit 99 stops.
  • the diaphragm 8 is of such a size as to exactly mate with the outer profile of the channels 10 and the corresponding connection wall so that during the final wash stage the slots or holes 100 are closed. This can be seen in Figure 3.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Multiple-Way Valves (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • External Artificial Organs (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Reciprocating Pumps (AREA)

Claims (2)

  1. Membranpumpe vom Typ bestehend aus einem zylindrischen Behälter (7), der sich um seine Längsachse dreht und von einer verformbaren Membrane (8) in zwei Teile geteilt ist, und gelochten Längs-U-Profilen (10), die in einem Teil des Behälters vorgesehen und an dessen Innenwand befestigt und an einen externen Sammler (12) für die Saftsammlung angeschlossen sind. Besagte Presse ist dadurch gekennzeichnet, daß mindestens ein weiterer Sammler (15) für den Anschluß sowohl mit dem vom Saftsammler entferntesten Ende der U-Profile, als auch mit der Ventilanlage (99) für die Druckwasserversorgung vorgesehen ist; die verformbare Membrane (8) ist so bemessen, daß sie sich perfekt der Wand, auf der die U-Profile (10) angebracht sind, und denselben Profilen anpaßt, sodaß sich deren Öffnungen (100) perfekt schließen, wenn sie von der unter Druck stehenden Flüssigkeit, die auf deren hinteren Teil wirkt, in Position gehalten wird.
  2. Presse entsprechend dem Anspruch 1, dadurch gekennzeichnet, daß der vorgenannte weitere Sammler eine Reihe von Nebensammlern (15) umfasst, die druckseitig an mindestens eines der besagten U-Profile (10) und auf der Eintrittsseite an einen Hauptsammler (17) angeschlossen sind, der seinerseits an die Anlage (99) für die Druckwasserversorgung angeschlossen ist; in den Rohren (16), die besagte Nebensammler (15) mit dem Hauptsammler (17) verbinden, sind entsprechende Ventile (160) zwischengeschaltet, die so angeordnet sind, um sich nacheinander für einen vorbestimmten und regulierbaren Zeitraum zu öffnen.
EP88202613A 1988-07-06 1988-11-22 Membranpresse mit innerem Waschsystem Expired - Lifetime EP0349679B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88202613T ATE94463T1 (de) 1988-07-06 1988-11-22 Membranpresse mit innerem waschsystem.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8846868A IT1225072B (it) 1988-07-06 1988-07-06 Pressa a membrana con sistema di lavaggio interno
IT4686888 1988-07-06

Publications (3)

Publication Number Publication Date
EP0349679A2 EP0349679A2 (de) 1990-01-10
EP0349679A3 EP0349679A3 (en) 1990-11-14
EP0349679B1 true EP0349679B1 (de) 1993-09-15

Family

ID=11259968

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88202613A Expired - Lifetime EP0349679B1 (de) 1988-07-06 1988-11-22 Membranpresse mit innerem Waschsystem

Country Status (4)

Country Link
EP (1) EP0349679B1 (de)
AT (1) ATE94463T1 (de)
DE (1) DE3884197D1 (de)
IT (1) IT1225072B (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT222657Z2 (it) * 1991-07-03 1995-04-24 Tecnosiprem Apparecchiatura per la separazione di sostanze liquide e solide, in particolare per l'estrazione del succo dalla frutta e simili
DE19945789A1 (de) * 1999-09-24 2000-12-14 Franz Scharfenberger Fa Presse zum Auspressen von flüssigkeitshaltigen Stoffen
AUPR029700A0 (en) * 2000-09-22 2000-10-12 Wine Innovation Pty Ltd A drainage member
FR2873616B1 (fr) * 2004-07-30 2008-11-07 Le Materiel Pera Sa Pressoir pour matiere telle que de la vendange
EP2342071A1 (de) 2008-11-05 2011-07-13 VELO Spa Pressverfahren und presse
ITAN20090094A1 (it) * 2009-11-23 2011-05-24 Immobiliare Cocci S R L Pressa per la spremitura di frutti, dispositivo di lavaggio per tali presse e procedimento di lavaggio messo in opera con detto dispositivo.
ITMI20112114A1 (it) * 2011-11-21 2013-05-22 Siprem Internat S R L Apparecchiatura per la separazione di sostanze liquide e solide, in particolare per l'estrazione di succo dalla frutta e simili
IT201800002875A1 (it) * 2018-02-20 2019-08-20 NoForm Srl Pressa pneumatica per pressare un prodotto vegetale

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
YU36876B (en) * 1974-10-31 1984-08-31 Willmes Josef Kg Container for precipitating a liquid and pressing
AT350913B (de) * 1977-03-17 1979-06-25 Bucher Guyer Ag Masch Einrichtung zum trennen von fluessigen und festen stoffen

Also Published As

Publication number Publication date
ATE94463T1 (de) 1993-10-15
IT8846868A0 (it) 1988-07-06
IT1225072B (it) 1990-11-02
EP0349679A2 (de) 1990-01-10
EP0349679A3 (en) 1990-11-14
DE3884197D1 (de) 1993-10-21

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