EP3530447A1 - Presse pneumatique - Google Patents

Presse pneumatique Download PDF

Info

Publication number
EP3530447A1
EP3530447A1 EP19157350.0A EP19157350A EP3530447A1 EP 3530447 A1 EP3530447 A1 EP 3530447A1 EP 19157350 A EP19157350 A EP 19157350A EP 3530447 A1 EP3530447 A1 EP 3530447A1
Authority
EP
European Patent Office
Prior art keywords
chamber
press
drum
axis
towards
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Withdrawn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
EP19157350.0A
Other languages
German (de)
English (en)
Inventor
Remo Crosato
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.)
NoForm Srl
Original Assignee
NoForm Srl
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 NoForm Srl filed Critical NoForm Srl
Publication of EP3530447A1 publication Critical patent/EP3530447A1/fr
Withdrawn legal-status Critical Current

Links

Images

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 concerns a pneumatic press to press a vegetable product.
  • the following description will refer by way of example to winemaking, a field in which the invention has proved particularly effective.
  • Pneumatic presses are known for pressing a vegetable product, e.g. as in EP2342071 .
  • crushed material is loaded and then pressed by an inflatable membrane which separates the liquid part from the peel through perforated draining channels placed on the internal surface of the drum.
  • the inflatable membrane has the edges fixed at the ends of a drum's diameter, and is designed to adhere, during loading, to half of the internal surface of the drum, while when inflated it presses the vegetable product against the opposite half.
  • the main disadvantage is that the maximum draining surface (or the maximum surface within which drainage channels can be applied) is only half of the internal surface of the drum. Since the draining holes or channels are made in the half-shell of the drum not occupied by the membrane, it follows that the distance between the draining surface and the pressing membrane is very disadvantageous.
  • the present invention has as its main object to improve this state of the art.
  • the present invention has the object of producing a press that alleviates the aforementioned problems.
  • a first aspect of the invention is a press for vegetable product, e.g. crushed grapes, comprising:
  • the pressing chamber may comprise or consist of a hollow drum rotatable about a horizontal axis and provided on the inner lateral surface with a draining sieve for separating the vegetable product in solid and liquid part, wherein a membrane is mounted inside the drum and inflatable to press the vegetable product against the draining siege.
  • the draining sieve comprises a portion which, seen from the axis of the drum, is convex with respect to the inner concave surface of the drum, in particular said portion extends radially from the internal concave surface of the drum towards the axis of the drum.
  • the pressing chamber may coincide for example with one of several volumes with which the press is equipped and in which a pressing is performed through an inflatable membrane to press the vegetable product against the draining sieve.
  • the convex portion in each case brings advantages to the press, that is:
  • Said convex portion is applicable to the rotatable drum in two variants: both when the drainage sieve comprises - or consists of - a perforated wall of the drum communicating directly with the outside of the drum (the inner volume of the drum communicates with the outside through the openings of the perforated wall), and when the drainage sieve comprises or consists of one or more drainage channels (the drum is closed) from which the liquid part is conveyed towards the outside of the drum through a liquid collector.
  • Said portion and/or draining sieve preferably comprises or consists of a perforated grid or mesh.
  • said portion comprises or is constituted by filtering walls shaped as a V- or U-shaped wedge, the wedge having a base at the inner lateral surface of the drum or of the pressing chamber, and a tapered part facing towards the axis of the drum or of the pressing chamber. Thanks to this "wedge" the semicylindrical concave draining surface of the drum or of the pressing chamber increases and becomes a concave-convex surface.
  • the tapered part comprises or is constituted by a rounded vertex.
  • the wedge-shaped walls form between each other an angle comprised between 30 degrees and 90 degrees.
  • said portion has such a convexity that between the part of the portion closest to the axis of the drum, or of the pressing chamber, and the inner lateral surface of the drum, or of the pressing chamber, there is a distance of 15% to 50% of the drum's diameter or pressing chamber's diameter (or of the actual volume pressed in the case of a different type of press).
  • experimental tests have identified as optimal a distance comprised between 30-35% of the diameter of the drum or of the pressing chamber and an angle between the two filtering walls equal to 60 degrees.
  • said portion and the inner lateral surface of the drum or of the pressing chamber are joined by rounded or curved sections, to avoid product stagnation.
  • the inflatable membrane is preferably mounted so that the edges of the membrane lie on the inner surface of the drum or of the pressing chamber.
  • the inflatable membrane is mounted so that the edges of the membrane coincide with the intersections between the inner surface of the drum or of the pressing chamber and an imaginary diametral plane of the drum or of the pressing chamber.
  • said portion is made of a rigid or elastic material.
  • said portion is coupled to the inner wall of the drum or of the pressing chamber by non-permanent connection means.
  • washing means or a washing device for spraying washing fluid against the back of the portion towards the inside, or towards the axis of the drum or of the pressing chamber.
  • the washing means or device may be housed within the concavity of said portion, more preferably in a position adjacent to the vertex of the portion.
  • a gas injection device or means is arranged to inject gas against the back of the portion towards the inside, or towards the axis, of the drum or of the pressing chamber.
  • the gas injection device or means may be housed within the concavity of said portion, more preferably in a position adjacent to the vertex of the portion.
  • liquid injection means or a liquid injection device are/is arranged to inject a liquid against the back of the portion towards the inside, or towards the axis, of the drum or of the chamber of pressing.
  • the liquid injection means or device may be housed within the concavity of the said portion, more preferably in an adjacent position at the top of the portion.
  • the press comprises, between said portion and the wall of the drum or of the pressing chamber, injection means or an injection device of a liquid or a liquid mixture.
  • said liquid or mixture of liquids is suitable for favoring maceration and/or alcoholic fermentation and/or the pressing.
  • the liquid may be washing liquid for the inside of the drum or the pressing chamber, e.g. water.
  • the injection means or device are configured to inject the liquid or the mixture of liquids towards the inside, or towards the axis, of the drum or of the pressing chamber.
  • a press MC comprises a hollow, e.g. cylindrical, drum 10 raised from the ground by a frame.
  • the drum 10 can rotate about a horizontal axis X in a known manner driven by a motor 20.
  • the press MC may be constructed in two variants ( Figures 2-3 ).
  • the first variant ( fig. 2 ) provides for the drum 10 to be closed. Evenly distributed over the inner side surface of the drum 10, there are longitudinal drainage channels 12, which extend parallel to the axis X for a good part of the length of the drum 10.
  • the drainage channels 12 communicate with collecting ducts 14 which bring the juice extracted by the pressing outside the drum 10, e.g. towards a collection tank 16.
  • the drum 10 is open, i.e. about half of the side surface of the drum 10 consists of a perforated wall or grid 22 for draining the vegetable product.
  • the filtering action is carried out directly by the wall or grid 22, and the juice that percolates from the drum 10 is collected.
  • the drum 10 contains a membrane 50 inflatable by means of a compressor 22 and deflated by means of an aspirator 24 which send or suck up fluid into/inside the drum 50 by means of a suitable access 18.
  • the membrane 50 is attached to the inner side surface of the drum 10 along the intersection between the inner surface of the drum 10 and an imaginary diametral plane of the drum.
  • the membrane 50 is mounted so that at rest (when deflated) it lies against about half of the inner lateral surface of the drum 10, while in action (when it is inflated) it expands towards the side surface opposite to that from which it departed, where the channels 12 or the grid 22 are.
  • Fig. 2 and 3 show the initial position of the membrane 50, when it is practically laid on the periphery without openings of the drum 10.
  • the drum 10 can be loaded with vegetable product either through a hatch 90, placed on the lateral surface of the drum 10, or axially, by injecting the product into the drum 10 through a conduit 32 which opens at the axis X.
  • the drum 10 comprises, on the inner wall opposite to the membrane 50, a draining portion 60 which projects from the concave surface toward the axis X.
  • the portion 60 consists of a bump that protrudes from the inner lateral surface of the drum 10 and extends towards the axis X.
  • the bump is formed by two perforated walls 62 converging towards a rounded vertex 64, e.g. perforated as well.
  • the bases of the perforated walls 62 are attached to the inner lateral surface of the drum 10 while the rounded vertex 64 is the part closest to the axis X.
  • the bases of the perforated walls 62 are attached to the inner lateral surface of the drum 10 through curved sections (in axial cross-section), in particular with sections (in axial cross-section) with concavity directed towards the axis X.
  • Said bump determines the concave portion of the filtering surface of the press.
  • the bump as in general the portion 60, may be
  • a preferred component relates to means or a washing device for spraying washing fluid against the back of the walls 62.
  • the washing means or device comprises e.g. a tube 98 provided with washing nozzles extending longitudinally (parallel to the axis X) between the upper portion 60 and the lateral surface of the drum 10 (i.e. extending in the space relative to the concavity of the portion 60 or of the bump).
  • the arrows in figure 8 and 9 indicate an example of a route for the washing fluid inside the drum 10.
  • Another preferred component relates to a device or means for injecting liquids or mixtures of liquids favoring the maceration and/or alcoholic fermentation and/or the pressing towards the mass of product contained in the drum 10 through the walls 62.
  • the same variations cited for the washing means or device are valid here.
  • Another preferred component relates to a device or means for injecting gas or a mixture of gas to inject gas towards the mass of product contained in the drum 10 through walls 62.
  • the gas in particular serves to neutralize the mass, or to favor the extraction from it of aromas or compounds, or to oxidize the mass.
  • the injection device or means e.g. comprises a conduit or tube 98 provided with one or more gas diffusers, wherein the conduit extends longitudinally (parallel to the axis X) between the bump or the portion 60 and the lateral surface of the drum 10 (or extends in the space relative to the concavity of the portion 60 or of the bump), in particular being positioned adjacent to the concavity of the vertex of the bump or of the portion 60.
  • the gas is injected directly into the mass to be filtered, with considerable advantages with respect to the diffusion itself of gas in the mass.
  • the arrows in figure 8 and 9 indicate an example of the path for the gas inside the drum 10.
  • each aforesaid component may comprise a dedicated injection tube or duct independent from the others.
  • the means or devices for the injection of gas, of liquid favoring the maceration/fermentation/pressing or the washing may comprise or consist of a single duct or tube which, for example, alternatively performs the function of: (1) washing of the bump or of the portion 60 and also of the inner part of the press, and (2) injection and diffusion of the gas into the mass.
  • the walls 62 form an angle between 30 degrees and 90 degrees, in particular 60 degrees.
  • the height of the bump measured along a diameter of the drum 10 with respect to the adjacent inner lateral surface of the drum 10, is comprised between 15% and 50% of the diameter of the drum 10, in particular 30-35%.
  • Fig. 4 shows in cross-section the axial loading of a press MC of the closed type.
  • the increase in the filtering surface is equal to 15% in the hypothesis that the loading percentage is 25%. 15% more draining surface translates, with respect to the hypothesis of complete loading, into a 4 times higher efficiency, that is to an efficiency increase of at least 60% compared to the situation of an analogous, by volume, known press.
  • the steepness of the walls 62 and the roundness of its top 64 cause the sieve 60 to be self-cleaning, because it avoids the accumulation of skins and seeds that would normally form a cap against the drain.
  • the sieve 60 wedges into the mass of the product P, it reduces the thickness thereof and determines a considerable increase in efficiency.
  • Fig. 5 illustrates as an example the membrane 50 in action, while pressing the product P against the bump and the channels 12.
  • the arrows indicate the dripping paths followed by the liquid.
  • Fig. 6 shows in cross-section a 75% axial loading of a closed-type press MC. Compare with fig. 7 which shows in cross-section the axial loading at 75% of an open-type press MC. In both these two cases, during the pressing phase the efficiency increase can be considered equal to 20-30%.
  • the operations of the press MC are preferably managed by a programmable electronic unit or a PLC.
  • the programmable electronic unit or the PLC manages the motor 20, the compressor 22 and the aspirator 24, all the valves of the press MC.
  • the longitudinal drainage channels 12 may be of a different shape from the illustrated one.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Preparation Of Fruits And Vegetables (AREA)
  • General Preparation And Processing Of Foods (AREA)
  • Press Drives And Press Lines (AREA)
EP19157350.0A 2018-02-20 2019-02-15 Presse pneumatique Withdrawn EP3530447A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102018000002875A IT201800002875A1 (it) 2018-02-20 2018-02-20 Pressa pneumatica per pressare un prodotto vegetale

Publications (1)

Publication Number Publication Date
EP3530447A1 true EP3530447A1 (fr) 2019-08-28

Family

ID=62167753

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19157350.0A Withdrawn EP3530447A1 (fr) 2018-02-20 2019-02-15 Presse pneumatique

Country Status (2)

Country Link
EP (1) EP3530447A1 (fr)
IT (1) IT201800002875A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202100005399A1 (it) * 2021-03-09 2022-09-09 Sacmi Imola Sc Apparecchiatura per la produzione di profumi e procedimento per la produzione di profumi.
EP4056357A1 (fr) * 2021-03-09 2022-09-14 Sacmi Imola S.C. Appareil de fabrication de parfum et procédé de fabrication de parfum

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2336241A1 (fr) * 1975-12-22 1977-07-22 Bucher Guyer Ag Masch Appareil pour la separation de corps liquides et solides
FR2348814A1 (fr) * 1976-04-21 1977-11-18 Bucher Guyer Ag Masch Appareil pour la separation de corps liquides et solides
EP0349679A2 (fr) * 1988-07-06 1990-01-10 Diemme S.P.A. Presse à membrane avec système de lavage interne
FR2711975A1 (fr) * 1993-11-03 1995-05-12 Somavi Appareil à cuve fixe pourvue dans son fond de moyens de transport et procédé pour égoutter la vendange avec un tel appareil.
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 (fr) * 2000-09-22 2002-03-28 Wine Innovation Pty Ltd Ameliorations apportees a des presses a membrane et a des elements d'egouttage
DE202004000709U1 (de) * 2004-01-16 2004-03-18 Wilmes Anlagentechnik Gmbh Presse zum Auspressen von flüssigkeitshaltigen Stoffen mit einem ein spiralförmiges Stützelement enthaltenden Drainageelement
EP1403033A1 (fr) * 2002-09-27 2004-03-31 Vaslin Bucher (S.A.) Unité de drainage et pressoir comportant de telles unités
WO2005051642A1 (fr) * 2003-11-27 2005-06-09 Velo Spa Procede et appareil ameliores pour presser du raisin et d'autres fruits juteux
WO2010052739A1 (fr) * 2008-11-05 2010-05-14 Velo Spa Procédé de pressage et pressoir
EP2314175A1 (fr) * 2009-10-26 2011-04-27 Bucher Vaslin Pressoire équipé d'une membrane de pressage

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2336241A1 (fr) * 1975-12-22 1977-07-22 Bucher Guyer Ag Masch Appareil pour la separation de corps liquides et solides
FR2348814A1 (fr) * 1976-04-21 1977-11-18 Bucher Guyer Ag Masch Appareil pour la separation de corps liquides et solides
EP0349679A2 (fr) * 1988-07-06 1990-01-10 Diemme S.P.A. Presse à membrane avec système de lavage interne
FR2711975A1 (fr) * 1993-11-03 1995-05-12 Somavi Appareil à cuve fixe pourvue dans son fond de moyens de transport et procédé pour égoutter la vendange avec un tel appareil.
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 (fr) * 2000-09-22 2002-03-28 Wine Innovation Pty Ltd Ameliorations apportees a des presses a membrane et a des elements d'egouttage
EP1403033A1 (fr) * 2002-09-27 2004-03-31 Vaslin Bucher (S.A.) Unité de drainage et pressoir comportant de telles unités
WO2005051642A1 (fr) * 2003-11-27 2005-06-09 Velo Spa Procede et appareil ameliores pour presser du raisin et d'autres fruits juteux
DE202004000709U1 (de) * 2004-01-16 2004-03-18 Wilmes Anlagentechnik Gmbh Presse zum Auspressen von flüssigkeitshaltigen Stoffen mit einem ein spiralförmiges Stützelement enthaltenden Drainageelement
WO2010052739A1 (fr) * 2008-11-05 2010-05-14 Velo Spa Procédé de pressage et pressoir
EP2342071A1 (fr) * 2008-11-05 2011-07-13 VELO Spa Procédé de pressage et pressoir
EP2314175A1 (fr) * 2009-10-26 2011-04-27 Bucher Vaslin Pressoire équipé d'une membrane de pressage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202100005399A1 (it) * 2021-03-09 2022-09-09 Sacmi Imola Sc Apparecchiatura per la produzione di profumi e procedimento per la produzione di profumi.
EP4056357A1 (fr) * 2021-03-09 2022-09-14 Sacmi Imola S.C. Appareil de fabrication de parfum et procédé de fabrication de parfum

Also Published As

Publication number Publication date
IT201800002875A1 (it) 2019-08-20

Similar Documents

Publication Publication Date Title
JP2637390B2 (ja) 汚物濾過脱水用スクリュープレスの濾過円筒洗浄装置
EP3530447A1 (fr) Presse pneumatique
CN203789077U (zh) 一种土豆连续磨皮清洗机
KR101517985B1 (ko) 이물질 제거가 용이한 수처리 여과장치
US8091474B2 (en) Rotary fan press
US8146750B2 (en) Rotary fan press
EP1150756B1 (fr) Appareil de filtrage avec lit de sable filtrant
CN205323327U (zh) 一种过滤器
ES2379771T3 (es) Prensa equipada con una membrana de presión
KR20090002003U (ko) 싱크대설치식 음식물 탈수장치의 회전여과망
KR102461500B1 (ko) 초고압을 이용한 압착식 탈수장치
RU2427619C2 (ru) Бункер для пивной дробины
EP4046788A1 (fr) Presse
JP2009022854A (ja) 回転加圧脱水機および回転加圧脱水機による汚泥の脱水方法
RU2007912C1 (ru) Аппарат для выработки сырного зерна
CN201260907Y (zh) 下排液螺旋骨架式过滤柱
KR20120118700A (ko) 여과 기능이 향상된 용수여과장치
FR2682893A1 (fr) Procede et machine de recuperation de metaux a l'etat libre contenus dans des alluvions humides ou secs ou de la roche broyee.
EP1308503A1 (fr) Filtre déstiné aux appareils de vinification et appareils de vinification contenant ce filtre
JPS5831206B2 (ja) ロカソウチ
KR20080071571A (ko) 로타리 팬 프레스
JPH09299717A (ja) フィルター
JP2000061500A (ja) スクリュー式脱水機
RO104184B1 (ro) Filtra grosier, pentru vinificație

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20200219

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20220307

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20220719