EP0533274A2 - Pneumatische Membranpresse, insbesondere für Trauben - Google Patents

Pneumatische Membranpresse, insbesondere für Trauben Download PDF

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Publication number
EP0533274A2
EP0533274A2 EP92202822A EP92202822A EP0533274A2 EP 0533274 A2 EP0533274 A2 EP 0533274A2 EP 92202822 A EP92202822 A EP 92202822A EP 92202822 A EP92202822 A EP 92202822A EP 0533274 A2 EP0533274 A2 EP 0533274A2
Authority
EP
European Patent Office
Prior art keywords
drum
grapes
hollow portion
pressing
hollow
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Withdrawn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
EP92202822A
Other languages
English (en)
French (fr)
Other versions
EP0533274A3 (de
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 EP0533274A2 publication Critical patent/EP0533274A2/de
Publication of EP0533274A3 publication Critical patent/EP0533274A3/de
Withdrawn legal-status Critical Current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

  • the present invention relates to a pneumatic membrane-type press in particular for pressing grapes.
  • Presses of the abovementioned type are known and it is also known that they generally consist of a substantially horizontal drum, perforated over almost its whole surface, except for a longitudinal strip, which is able to rotate about its own longitudinal axis and forms a storage container designed to be filled with grapes.
  • the latter are pressed by means with which it is provided internally and which consist of an impermeable and deformable membrane with a length equivalent to that of the drum, the lateral edges of which are fastened to the corresponding lateral edges of the abovementioned non-perforated longitudinal strip of the drum.
  • the drum Once the drum has been filled with grapes, it is rotated so as to arrange it with the perforated part facing downwards and air or water are then admitted inside on the side of the membrane opposite to that which is in contact with the grapes.
  • the fluid admitted into the drum exerts a pressure on the grapes, resulting in pressing of the latter and causing the must to flow out from the holes in the drum.
  • the must is collected in a special vat positioned underneath the drum and, after pressing has been completed, the vat full of must is removed and trasported to a station for storage of the same.
  • the drum is now rotated so that the hatch through which the grapes were loaded is located at the bottom and, after positioning underneath the drum a vat for collecting the pressed marc, the abovementioned hatch is opened in order to remove the latter from the drum.
  • a first drawback consists in the fact that at least two separate vats must be provided, namely one for collecting the must and one for collecting the pressed marc, making the equipment complex and costly and requiring the manufacture of additional components besides the necessary frame which supports the drum.
  • This drawback is particularly onerous in that, in addtion to the considerable quantity of material which must be used, special lines must be provided for the production of the various components, resulting in not insignificant costs.
  • a pneumatic membrane-type press in particular for pressing grapes which enables the abovementioned drawbacks of conventional presses to be overcome, has now been devised and represents the subject of the present invention.
  • Another aim of the present invention is to provide a press which offers the abovementioned advantage, while still being simple and economical from a constructional point of view and easy to operate.
  • a further aim of the present invention is to provide a press which, owing to the abovementioned simplifications, reduces to a minimum the periodic maintenance operations.
  • the drum 10 which has a generally cylindrical shape, is partially perforated along its lateral surface and in particular the perforated portion covers, over the whole length of the drum, an angle of 180° with respect to the centre and more precisely this portion is comprised between the generating lines indicated by A and B in figure 4 in the right-hand part of the drum.
  • the drum 10 is provided with a hatch 12, visible in figures 3 and 4, through which the grapes are loaded and the pressed marc removed.
  • the drum 10 has been shown in figures 3 and 4 positioned with the hatch 12 arranged laterally, but it should be noted that the drum 10, in its two operating positions, must be positioned with the hatch arranged at the top (loading of grapes) and at the bottom (removal of pressed marc).
  • the drum 10 has at one of its ends a valve 16 for axial loading of the products to be pressed should one not wish to use the hatch 12. At the other end there is a ratiomotor 18 for effecting rotation of the drum 10 and a compressor/suction pump 20 for supplying or evacuating air from the drum 10 through a valve, not shown.
  • the drum 10 is supported by a fixed frame, indicated as a whole by the numeral 22 , which, according to one of the main features of the present invention, forms at the same time the vat for collection of the must.
  • the abovementioned frame 22 has an cantilever portion, which has a dual function. During pressing said portion receives part of the must flowing out of the the drum 10 and supplies it to the portion of the frame constituting the actual collection vat, whereas, after pressing, said portion allows the pressed marc to be unloaded into a collection vat.
  • Said frame consists esssentially of a first hollow portion 22a, for example with the general shape of a parallelepiped.
  • the rear wall 24 of the portion 22a supports one end of the drum 10 at a height such that the latter is located between the side walls 26 of the portion 22a, from the upper edge of which is projects partially.
  • This arrangement is such that, during pressing, the must falls only into the hollow portion 22a and not outside the press.
  • the hollow portion 22a is provided at the bottom with a hole 28 for removing the must and conveying it away to a storage station. This operation may be performed using a pump, not shown.
  • the press according to the invention comprises a second hollow portion 22b which may be manufactured integrally with the first hollow portion 22a in the case where, for example, its side walls 30 form an extension of the side walls 26 of the first hollow portion 22a.
  • the front wall 32 of the second hollow portion 22b supports the second end of the drum 10.
  • the side walls 30 of the second hollow portion 22b are vertical in the region of their upper part 30a and slope downwards and towards each other in the region of the lower part 30b.
  • a sliding hatch 34 is mounted on the bottom edges of the parts 30b and, as can be seen in particular from figure 3, it slopes downwards in the direction of the first hollow part 22a. Said hatch 34 is provided with a lug 36 for effecting movement thereof.
  • the compressor 20 is activated so as to supply air into the former and commence the pressing operation.
  • the must flowing out of the drum 10 falls both into the first and into the second hollow parts 22a, 22b.
  • the portion of must which falls into the second hollow part 22b, owing to the inclination of the plane defined by the hatch 34, is conveyed into the first hollow part 22a which therefore receives all of the must produced by the press.
  • the press according to the present invention has been described with reference to the pressing of grapes.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
EP19920202822 1991-09-19 1992-09-15 Pneumatische Membranpresse, insbesondere für Trauben Withdrawn EP0533274A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTV910030U IT225840Z2 (it) 1991-09-19 1991-09-19 Pressa pneumatica a membrana per la spremitura particolarmente di uva
ITTV910030U 1991-09-19

Publications (2)

Publication Number Publication Date
EP0533274A2 true EP0533274A2 (de) 1993-03-24
EP0533274A3 EP0533274A3 (de) 1993-05-19

Family

ID=11418826

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920202822 Withdrawn EP0533274A3 (de) 1991-09-19 1992-09-15 Pneumatische Membranpresse, insbesondere für Trauben

Country Status (2)

Country Link
EP (1) EP0533274A3 (de)
IT (1) IT225840Z2 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0842761A2 (de) * 1996-04-19 1998-05-20 VELO S.p.A. Press für Trauben, Fruchtabfälle und andere Pulpe
WO2011148228A1 (en) 2010-05-25 2011-12-01 Lasi S.R.L. Improved fermentation apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3825111B1 (de) 2019-11-18 2024-01-24 Puleo S.p.A. Vorrichtung zum pressen von pflanzenprodukten in einer kontrollierten inerten atmosphäre mit einer molekularen separatorvorrichtung zur selbstproduktion von inertgas

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2499464A1 (fr) * 1981-02-12 1982-08-13 Howard Machinery Ltd Pressoir pneumatique, en particulier pour le raisin
DE3617712A1 (de) * 1986-05-27 1987-12-23 Fischer Guenter Presse zum auspressen fluessigkeitshaltiger stoffe
EP0268546A1 (de) * 1986-11-13 1988-05-25 Vetter Maschinenfabrik GmbH Presse zum Auspressen von Pressgut in Form von flüssigkeitshaltigen Stoffen, insbesondere Maischen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2499464A1 (fr) * 1981-02-12 1982-08-13 Howard Machinery Ltd Pressoir pneumatique, en particulier pour le raisin
DE3617712A1 (de) * 1986-05-27 1987-12-23 Fischer Guenter Presse zum auspressen fluessigkeitshaltiger stoffe
EP0268546A1 (de) * 1986-11-13 1988-05-25 Vetter Maschinenfabrik GmbH Presse zum Auspressen von Pressgut in Form von flüssigkeitshaltigen Stoffen, insbesondere Maischen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0842761A2 (de) * 1996-04-19 1998-05-20 VELO S.p.A. Press für Trauben, Fruchtabfälle und andere Pulpe
EP0842761A3 (de) * 1996-04-19 1998-12-02 VELO S.p.A. Press für Trauben, Fruchtabfälle und andere Pulpe
WO2011148228A1 (en) 2010-05-25 2011-12-01 Lasi S.R.L. Improved fermentation apparatus

Also Published As

Publication number Publication date
EP0533274A3 (de) 1993-05-19
ITTV910030V0 (it) 1991-09-19
ITTV910030U1 (it) 1993-03-19
IT225840Y1 (it) 1997-01-24
IT225840Z2 (it) 1997-01-24

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