EP0524373A1 - Vorrichtung zur Trennung von flüssigen und festen Substanzen, insbesonderen zur Gewinnung von Saft aus Früchten oder dergleichen - Google Patents

Vorrichtung zur Trennung von flüssigen und festen Substanzen, insbesonderen zur Gewinnung von Saft aus Früchten oder dergleichen Download PDF

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Publication number
EP0524373A1
EP0524373A1 EP92105967A EP92105967A EP0524373A1 EP 0524373 A1 EP0524373 A1 EP 0524373A1 EP 92105967 A EP92105967 A EP 92105967A EP 92105967 A EP92105967 A EP 92105967A EP 0524373 A1 EP0524373 A1 EP 0524373A1
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EP
European Patent Office
Prior art keywords
chamber
pressing
fan
pressing chamber
product
Prior art date
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Granted
Application number
EP92105967A
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English (en)
French (fr)
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EP0524373B1 (de
Inventor
Paolo Rondina
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.)
SIPREM S.R.L.
Original Assignee
SIPREM Srl
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Filing date
Publication date
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Publication of EP0524373A1 publication Critical patent/EP0524373A1/de
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Publication of EP0524373B1 publication Critical patent/EP0524373B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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

  • the present invention relates to an apparatus for separating liquid and solid substances, in particular for extracting juice from fruit and the like.
  • Presses for grapes or fruit in general are generally constituted by a usually cylindrical container which is divided by either an elastic or non-elastic diaphragm into a pressing chamber and into a pressure chamber.
  • the substance to be pressed for example grape must, is fed into the pressing chamber, and then pressurized fluid, air or water, is fed into the pressure chamber.
  • the presses are therefore constituted by a pressurized tank and by a device for producing pressurized fluid. These presses, besides having a considerable energy expenditure, must furthermore comply with all the statutory provisions regarding this type of apparatus.
  • the aim of the present invention is to provide an apparatus for pressing fruit in general, and more particularly grapes, which does not have the above described problems and is furthermore more economical from the point of view of production and management.
  • an object of the invention is to provide an apparatus which can perform a more accurate pressing as regards grapes in particular.
  • Another object of the invention is to provide an apparatus which is absolutely safe for the personnel assigned thereto.
  • an apparatus for separating liquid and solid substances comprising a pressing container into which the product to be separated is fed, characterized in that said pressing container comprises at least one pressing chamber which is delimited by a flexible diaphragm and by a discharge device, said flexible diaphragm being adjacent to a region which is substantially at atmospheric pressure, said pressing chamber being connected to means suitable for generating negative pressure, so that said diaphragm acts on said product and presses it.
  • the apparatus generally designated by the reference numeral 1, comprises a container 2, into which the material to be separated is fed, and a vacuum device 3, adapted to generate a negative pressure in the container 2.
  • the container 2 is constituted by a cylindrical structure 5 which is rotatably mounted on supports 7 and comprises a resilient diaphragm 9 which is fixed along two generatrices of the cylinder and to the end walls 11 and 13 of said cylinder, so as to define a first pressing chamber 15 and a second chamber 17.
  • the pressing chamber 15 comprises a plurality of discharge channels 19 which are perforated in order to drain the liquid part separated during the pressing action.
  • the discharge channels 19 are connected to a circular manifold 21 which is located at the end wall 11 and is in turn connected to a discharge manifold 23 arranged outside the container 2.
  • the discharge channels 19 are associated to the tank by means of hinges 49, as illustrated in Fig. 3
  • the channels 19 can thus be easily open for washing without disassembling them as it happens with conventional constructions.
  • sprayer nozzles 51 are provided preferably on the opposite side of the discharge manifold 21, at each channel 19. Nozzles 51 , are connected to a high-pressure pump (not illustrated), and allow the internal washing of the channels along their entire length, as illustrated in Fig. 4.
  • All the nozzles can be connected to a washing manifold 53 outside the container 2 in order to wash the channels simultaneously.
  • the vacuum generation device 3 comprises a separator tank 25, which is connected to the manifold 23 and is adapted to collect the liquid product, and a vacuum pump 27, which is adapted to generate a negative pressure inside the separator 25.
  • the vacuum pump 27 is of a per se known type.
  • the separator 25 furthermore comprises a level measurement device 37 which is suitable for controlling an extraction pump 39 in order to discharge the separated product when it reaches a preset level in said separator.
  • a liter counter 33 is inserted after the pump 39 in order to automatically control the amount of extracted liquid product.
  • This control is used for the automatic actuation of the press, both during filling and during pressing, optimizing the negative pressure values generated by the device 3.
  • a fan 41 is advantageously connected to the second chamber 17 of the container 2 and is suitable for generating a slight overpressure in said second chamber, whereas a valve 35 allows access to ambient pressure.
  • the pressing chamber 15 is initially filled with material to be separated, for example crushed or whole grapes; then negative pressure is generated by means of the device 3 in the discharge channels 19.
  • the resilient diaphragm 9 thus presses on the product by virtue of the atmospheric pressure which is present in the second chamber 17.
  • the liquid thus produced is conveyed into the manifold 23 and collected in the separator 25, where the extraction pump 39 periodically discharges it.
  • the fan 41 may generate a slight overpressure in the second chamber 17 in order to facilitate the depletion of the product, creating a greater pressure difference between the pressing chamber and the second chamber.
  • the fan 41 is furthermore advantageously used also to move the diaphragm 9 rapidly into its working position, in contact with the must, after filling has occurred.
  • Another advantageous use of the fan is the generation of a negative pressure in the second chamber in order to move the diaphragm 9 into the position for loading the pressing chamber (as shown in figure 1).
  • the invention achieves the intended aim and objects by providing a pressing apparatus for fruit and the like which is structurally and functionally much more simplified than known devices and is furthermore advantageous from the point of view of the quality of the product obtained.
  • the product is in fact subjected to less laceration and to a greater degree of filtration with respect to conventional presses.
  • Another great advantage is due to the possibility of keeping the apparatus at negative pressure during the filling of the product, thus facilitating the feeding action, increasing the amount of product loaded for an equal volume, and facilitating the extraction of the juice.
  • the apparatus according to the invention is furthermore subjected to less mechanical stress and is thus more reliable and has a longer life.
  • Fig. 2 illustrates a container 2a which comprises a tubular resilient diaphragm 9a which defines a pressing chamber 15 which is coaxial to the second chamber 17.
  • the second chamber of the container may furthermore be open toward the outside.
  • Fig. 1 furthermore illustrates a possible arrangement of the fan 41a, which is connected to the separator 25.
  • the fan 41a would not serve to generate a slight overpressure in the second chamber, as previously described, but would facilitate a first rapid generation of negative pressure in the pressing chamber, furthermore moving the diaphragm 9 rapidly into its working position.
  • the fan 41a in this case as well, is able to move the diaphragm 9 rapidly into the loading position, shown in figure 1.
  • Said fan 41a which is conveniently connected to an accumulation 29 of inert gas, which also comprises a discharge 31, allows to introduce gas into the pressing chamber in order to avoid the contact of the product with ambient air in order to minimize the oxidation of the product.
  • the apparatus according to the invention may have several modifications and variations, all within the inventive concept; furthermore, all the details may be substituted with technical equivalent elements.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Non-Alcoholic Beverages (AREA)
EP19920105967 1991-07-03 1992-04-07 Vorrichtung zur Trennung von flüssigen und festen Substanzen, insbesonderen zur Gewinnung von Saft aus Früchten oder dergleichen Expired - Lifetime EP0524373B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000603 IT222657Z2 (it) 1991-07-03 1991-07-03 Apparecchiatura per la separazione di sostanze liquide e solide, in particolare per l'estrazione del succo dalla frutta e simili
ITMI910603U 1991-07-03

Publications (2)

Publication Number Publication Date
EP0524373A1 true EP0524373A1 (de) 1993-01-27
EP0524373B1 EP0524373B1 (de) 1994-12-28

Family

ID=11358929

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920105967 Expired - Lifetime EP0524373B1 (de) 1991-07-03 1992-04-07 Vorrichtung zur Trennung von flüssigen und festen Substanzen, insbesonderen zur Gewinnung von Saft aus Früchten oder dergleichen

Country Status (5)

Country Link
EP (1) EP0524373B1 (de)
DE (1) DE69201029T2 (de)
ES (1) ES2065721T3 (de)
GR (1) GR3015463T3 (de)
IT (1) IT222657Z2 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4323711A1 (de) * 1993-07-15 1995-01-19 Willmes Josef Gmbh Druckmittelbetätigte Presse zum Auspressen von Flüssigkeit enthaltenden Stoffen
WO2001021385A2 (de) * 1999-09-24 2001-03-29 Franz Scharfenberger Inhaber Bernd Scharfenberger Presse zum auspressen von flüssigkeitshaltigen stoffen
US6247397B1 (en) * 1998-09-11 2001-06-19 Siprem International Srl Apparatus for separating liquid and solid substances, particularly for extracting juice from fruit and the like
WO2002024439A1 (en) * 2000-09-22 2002-03-28 Wine Innovation Pty Ltd Improvements to membrane presses and drainage members
WO2004033192A1 (en) * 2002-10-08 2004-04-22 Mario Pojer Apparatus and method for pressing vegetable products under controlled atmosphere
FR2862562A1 (fr) * 2003-11-25 2005-05-27 Vaslin Bucher Cuve de pressoir, notamment de pressoir pneumatique
WO2005051642A1 (en) * 2003-11-27 2005-06-09 Velo Spa Method and apparatus for pressing grapes and other juicy fruit
ITMI20131779A1 (it) * 2013-10-25 2015-04-26 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
US20230364877A1 (en) * 2020-09-30 2023-11-16 Willmes Anlagentechnik Gmbh Modular press

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020125608A1 (de) 2020-09-30 2022-03-31 Willmes Anlagentechnik Gmbh Anordnung zum Auspressen von flüssigkeitshaltigen Stoffen mit einem flexiblen Pressbehälter

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR67166E (fr) * 1954-08-28 1957-11-25 Appareil pour le pressage des matières contenant des liquides, notamment des fruits
DE2910170A1 (de) * 1979-03-15 1980-09-18 Willmes Josef Kg Verfahren und vorrichtung zum auspressen von fluessigkeit aus festen stoffen
FR2590046A1 (fr) * 1985-11-14 1987-05-15 Champagne Station Oenotechniqu Procede et dispositif d'automatisation d'un pressoir
EP0349679A2 (de) * 1988-07-06 1990-01-10 Diemme S.P.A. Membranpresse mit innerem Waschsystem

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR67166E (fr) * 1954-08-28 1957-11-25 Appareil pour le pressage des matières contenant des liquides, notamment des fruits
DE2910170A1 (de) * 1979-03-15 1980-09-18 Willmes Josef Kg Verfahren und vorrichtung zum auspressen von fluessigkeit aus festen stoffen
FR2590046A1 (fr) * 1985-11-14 1987-05-15 Champagne Station Oenotechniqu Procede et dispositif d'automatisation d'un pressoir
EP0349679A2 (de) * 1988-07-06 1990-01-10 Diemme S.P.A. Membranpresse mit innerem Waschsystem

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4323711A1 (de) * 1993-07-15 1995-01-19 Willmes Josef Gmbh Druckmittelbetätigte Presse zum Auspressen von Flüssigkeit enthaltenden Stoffen
US6247397B1 (en) * 1998-09-11 2001-06-19 Siprem International Srl Apparatus for separating liquid and solid substances, particularly for extracting juice from fruit and the like
AU747870B2 (en) * 1998-09-11 2002-05-23 Siprem International S.R.L. Improved apparatus for separating liquid and solid substances, particularly for extracting juice from fruit and the like
WO2001021385A2 (de) * 1999-09-24 2001-03-29 Franz Scharfenberger Inhaber Bernd Scharfenberger Presse zum auspressen von flüssigkeitshaltigen stoffen
WO2001021385A3 (de) * 1999-09-24 2001-10-11 Franz Scharfenberger Presse zum auspressen von flüssigkeitshaltigen stoffen
WO2002024439A1 (en) * 2000-09-22 2002-03-28 Wine Innovation Pty Ltd Improvements to membrane presses and drainage members
WO2004033192A1 (en) * 2002-10-08 2004-04-22 Mario Pojer Apparatus and method for pressing vegetable products under controlled atmosphere
FR2862562A1 (fr) * 2003-11-25 2005-05-27 Vaslin Bucher Cuve de pressoir, notamment de pressoir pneumatique
EP1535728A1 (de) * 2003-11-25 2005-06-01 Vaslin Bucher (S.A.) Presswanne, insbesondere für pneumatische Presse
WO2005051642A1 (en) * 2003-11-27 2005-06-09 Velo Spa Method and apparatus for pressing grapes and other juicy fruit
ITMI20131779A1 (it) * 2013-10-25 2015-04-26 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
US20230364877A1 (en) * 2020-09-30 2023-11-16 Willmes Anlagentechnik Gmbh Modular press

Also Published As

Publication number Publication date
EP0524373B1 (de) 1994-12-28
DE69201029T2 (de) 1995-08-24
ITMI910603U1 (it) 1993-01-03
DE69201029D1 (de) 1995-02-09
GR3015463T3 (en) 1995-06-30
IT222657Z2 (it) 1995-04-24
ES2065721T3 (es) 1995-02-16
ITMI910603V0 (it) 1991-07-03

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