EP2342071A1 - Procédé de pressage et pressoir - Google Patents

Procédé de pressage et pressoir

Info

Publication number
EP2342071A1
EP2342071A1 EP08876091A EP08876091A EP2342071A1 EP 2342071 A1 EP2342071 A1 EP 2342071A1 EP 08876091 A EP08876091 A EP 08876091A EP 08876091 A EP08876091 A EP 08876091A EP 2342071 A1 EP2342071 A1 EP 2342071A1
Authority
EP
European Patent Office
Prior art keywords
pressing
outlets
product
drum
membrane
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.)
Withdrawn
Application number
EP08876091A
Other languages
German (de)
English (en)
Inventor
Antonio Velo
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.)
Velo SpA
Original Assignee
Velo 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 Velo SpA filed Critical Velo SpA
Publication of EP2342071A1 publication Critical patent/EP2342071A1/fr
Withdrawn legal-status Critical Current

Links

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

  • the invention relates to a pressing method for an animal or vegetable product and to a press, preferably pneumatic, for implementing the method.
  • a vegetable product olives or fruit in general to be pressed can be used, such as fresh or crushed grapes.
  • an animal product e.g. the stomach of calves or ovi-caprines for the extraction of rennet can be used.
  • a pneumatic press is known from WO2005/051642. It describes a press comprising a rotatable cylindrical drum in which the grape is loaded, and an inflatable membrane inside the drum which upon expanding compresses the grapes against the walls of the drum.
  • the extracted juice passes through some filtering meshes located in correspondence of draining holes in the drum, from which it is expelled by the pressing action and it is then channeled by a collecting system.
  • the draining openings are arranged on a single arc of circumference with a center angle of about 180 degrees.
  • the aim is to foster an efficient and acceptably fast draining by giving the liquid must several ways-out to come out.
  • the main object of the present invention is to allow a better quality in the pressed product (juice) to be obtained, raising the quality performance of the known presses.
  • a pressing method for an animal or vegetable product for example grapes or crushed material, after its loading inside the drum of a pneumatic press, the drum being equipped with an inflatable, inner pressing membrane and with two or more drainage outlets of juice or liquid of the product, characterized by the phases of (i) leaving open only a subset of said outlets; (ii) pressing the product by inflating the membrane; (iii) opening a higher number of said outlets, eventually all; (iv) pressing again the product by inflating the membrane.
  • the invention thereby accomplishes a more valuable juice at the first pressing.
  • said subset may be a minority of said outlets, preferably one third.
  • a traditional drum provided with openings on a semi-circumferential arc becomes pervious along an arc of about 60 degrees, value which has yielded good practical results.
  • only one outlet of the drum may be left open.
  • stage (iii) occurs only after one pressing movement of the membrane, during which movement the product is pressed for the first time and its liquid or juice is optimally filtered and drained.
  • the invention adopts a pneumatic press comprising a drum, for loading the product therein, equipped inside with an inflatable pressing membrane and with two or more drainage outlets for liquid or juice of the product.
  • the press comprises means destined to selectively close a subset of said outlets during an initial pressing phase, e.g. valve means.
  • the press comprises a processing unit arranged to control the means destined to close, e.g. being configured to leave open only one outlet or a minority of the outlets during an initial pressing phase.
  • the press may include a diverter assembly for the flow of liquid or juice to discriminate the liquid or juice during and/or after the initial pressing phase to at least two distinct conveyance circuits.
  • the two circuits allow e.g. to store the different qualities of juice or liquid in different tanks.
  • the assembly may include valve means, preferably controlled by the processing unit, and adapted to close/open in the diverter assembly at least one outlet for the liquid or juice so that at least one outlet is open when the remaining outlets are closed and vice versa. In this way the liquid is easily sorted.
  • Fig. 1 shows an assonometric view of the press
  • Fig. 2 shows a graph of the pressing pressure as a function of time
  • Fig. 3 shows a simplified vertical cross-section of part of the press in fig. 1 according to the plane Ill-Ill in Fig. 4;
  • FIG. 4 shows a simplified side view of the press in fig. 1.
  • a press 10 (figures 1 , 3 and 4) is formed by a hollow drum 12, tumable around a horizontal axis X, which is supported by a frame 11. Through a tightly closable hatch 14, grapes or crushed material 18 (dotted in Fig. 3) can be loaded into the drum 12.
  • Fig. 3 and 4 illustrate only the details of the press which contribute to the invention.
  • valve means 34, 36 e.g. slide valves
  • a processing unit 60 for example a PLC.
  • valve means on the majority of them (n>m or n ⁇ m), in order to be able to close them on command.
  • the closing/opening of the openings 24, 26 can however take place through manual systems as well (plugs or manually operated valves).
  • the pump 42 directs the flow of must/juice to a diverter assembly composed of two valves 44, 46, controlled by the unit 60, too (see arrows).
  • valves 44, 46 serve to guide the flow of must either to a tank of "flower” must 50 or to a tank 48 of less valuable must called “second pressing” or “pressed".
  • the press generally works with the following method. After introducing the crushed material or the grapes in the drum 12 and after closing the hatch 14, the unit 60 commands:
  • the unit 60 commands the draining openings 24, 26 to be all open, here through the valves 34, 36, and reverses the state of the valves 44, 46. During the next pressing phase some less valuable must is extracted by all the openings 24, 25, 26 and is pumped in the tank "pressed" 48.
  • the stepped pressure course can be repeated over time, even with different stable pressure values and/or different numbers of steps and/or different frequency and duration of the crumbling phases.

Landscapes

  • 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)

Abstract

L'invention concerne un procédé de pressage pour un produit animal ou végétal, par exemple du raisin ou une matière broyée, après son chargement à l'intérieur du tambour (12) d'un pressoir pneumatique (10), le tambour étant équipé d'une membrane de pressage interne gonflable (20) et de deux ou plusieurs sorties d'évacuation (24, 25, 26) de jus ou liquide du produit. Le procédé comporte les phases consistant à (i) laisser ouvert uniquement un sous-ensemble (25) desdites sorties ; (ii) presser le produit en gonflant la membrane ; (iii) ouvrir un nombre supérieur (24, 26) desdites sorties, éventuellement toutes ; (iv) presser à nouveau le produit en gonflant la membrane. Le procédé permet de résoudre le problème d'obtention d'une meilleure qualité du jus ou liquide pressé en le filtrant au mieux.
EP08876091A 2008-11-05 2008-11-05 Procédé de pressage et pressoir Withdrawn EP2342071A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2008/000692 WO2010052739A1 (fr) 2008-11-05 2008-11-05 Procédé de pressage et pressoir

Publications (1)

Publication Number Publication Date
EP2342071A1 true EP2342071A1 (fr) 2011-07-13

Family

ID=40765624

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08876091A Withdrawn EP2342071A1 (fr) 2008-11-05 2008-11-05 Procédé de pressage et pressoir

Country Status (2)

Country Link
EP (1) EP2342071A1 (fr)
WO (1) WO2010052739A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2727476A1 (fr) 2012-11-02 2014-05-07 Noform S.r.l. Procédé pour le traitement des matériaux végétals broyés ayant des parties liquides et solides
EP3530447A1 (fr) * 2018-02-20 2019-08-28 Noform S.r.l. Presse pneumatique

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201900021528A1 (it) * 2019-11-19 2021-05-19 Defranceschi S R L Pressa pneumatica per uso enologico.
IT202100005399A1 (it) * 2021-03-09 2022-09-09 Sacmi Imola Sc Apparecchiatura per la produzione di profumi e procedimento per la produzione di profumi.
EP4056357B1 (fr) * 2021-03-09 2024-04-24 Sacmi Imola S.C. Appareil de fabrication de parfum et procédé de fabrication de parfum

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1225072B (it) 1988-07-06 1990-11-02 Diemme Spa Pressa a membrana con sistema di lavaggio interno
IT1258913B (it) * 1992-05-13 1996-03-01 Apparecchiatura per la separazione di sostanze liquide e solide,in particolare per l'estrazione di succo dalla frutta e simili
FR2701889B1 (fr) 1993-02-23 1995-05-24 Chalonnaises Const Mec Met Procédé automatique de détermination, de commande et de contrôle d'un égouttage forcé avant pressurage pour pressoirs discontinus.
AU2003292541A1 (en) 2003-11-27 2005-06-17 Velo Spa Method and apparatus for pressing grapes and other juicy fruit
FR2924050B1 (fr) * 2007-11-23 2010-05-07 Le Materiel Pera Pressoir pour matiere telle que de la vendange
ITRE20080083A1 (it) * 2008-09-12 2008-12-12 Diemme Spa Dispositivo di scarico per una pressa rotativa di spremitura

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2010052739A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2727476A1 (fr) 2012-11-02 2014-05-07 Noform S.r.l. Procédé pour le traitement des matériaux végétals broyés ayant des parties liquides et solides
EP3530447A1 (fr) * 2018-02-20 2019-08-28 Noform S.r.l. Presse pneumatique

Also Published As

Publication number Publication date
WO2010052739A1 (fr) 2010-05-14

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