EP0607932B1 - Eléments de drainage en forme de grille - Google Patents

Eléments de drainage en forme de grille Download PDF

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Publication number
EP0607932B1
EP0607932B1 EP94100679A EP94100679A EP0607932B1 EP 0607932 B1 EP0607932 B1 EP 0607932B1 EP 94100679 A EP94100679 A EP 94100679A EP 94100679 A EP94100679 A EP 94100679A EP 0607932 B1 EP0607932 B1 EP 0607932B1
Authority
EP
European Patent Office
Prior art keywords
pressing
screen
juice
container
chamber
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
EP94100679A
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German (de)
English (en)
Other versions
EP0607932A1 (fr
Inventor
Ulrich Willmes
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.)
Willmes Anlagentechnik GmbH
Original Assignee
Willmes Anlagentechnik GmbH
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Publication date
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Publication of EP0607932A1 publication Critical patent/EP0607932A1/fr
Application granted granted Critical
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Anticipated expiration legal-status Critical
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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
    • 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
    • B30B9/26—Permeable casings or strainers
    • B30B9/267—Strainer bars; Spacers

Definitions

  • the invention relates to sieve-shaped drainage elements in a press for pressing out liquid-containing substances, namely agricultural products, in particular grape and fruit mash with a fixed and / or rotatable press container, that one or more flexible and / or elastic press membranes are provided as the press-out member, which form the container divide into a pressure medium and press room and that juice channels and sieve elements are arranged in the press room.
  • a press membrane for example in a first embodiment (DE-A-3 543 135) an elongated cylindrical container can rotate about its horizontal longitudinal axis.
  • a bowl-shaped membrane is arranged in the interior of the container, the fastening plane of which runs parallel to a plane through the axis of rotation and in particular coincides with the plane through the axis of rotation.
  • There are juice channels in the press chamber which run approximately parallel to the axis of rotation and which are attached to the inner wall of the container. Additional screen plates are arranged on one or both end faces.
  • individual juice channels are arranged between a filling lid and the opposite side, both the lid and these individual juice channels being made of sieve plate.
  • a press in which the cylindrical container extends transversely to the horizontal axis of rotation, a drainage element extending over the entire length being arranged in the interior of the press space, the axis of which coincides with the axis of the container.
  • This drainage element is made of sieve sheet.
  • a filter press for squeezing water or other liquids out of sludge or similar products is known, slotted screens being used as the filter element, which are composed of individual parallel bars that are welded together. This results in a maximum distance of 1 mm, preferably 0.5 mm to 1 ⁇ .
  • Such slotted sieves are not suitable for pressing out agricultural products, in particular grape and fruit mash, since a defined distance of 1 to 1.5 mm is required for such sieves, the high forces resulting from the pressing process not being sufficient with such slotted sieve designs let dominate.
  • the invention has for its object to design drainage elements in such a way that an economical and technical implementation of the wedge wire technology for presses for pressing out agricultural products, in particular grape and fruit mash, is achieved and the forces acting on the elements are well controllable.
  • the juice channels and the sieve elements consist of slotted sieves which are connected with the aid of support rods or support rings and that the gap profile for the juice drain reduced, ie the gap widens in that the gap profile has a trapezoidal and / or conical cross section.
  • the object is achieved according to the invention according to a second embodiment in that in a press container in an elongated cylindrical shape, the longitudinal axis of which is arranged vertically or horizontally or runs vertically or horizontally to the axis of rotation, the juice channels and the sieve elements consist of slotted sieves which are made with the help of are connected by support rods or support rings and that the gap profile decreases towards the juice drain, ie the gap widens, in that the gap profile has a trapezoidal and / or conical cross section.
  • the gap profile has a section with parallel head flanks and then merges into a conical section.
  • the gap profiles can extend in the direction of juice drainage (axial arrangement of the filter surface).
  • gap profiles are wound spirally (radial arrangement of the filter surface).
  • the filter surface is on the inside or outside of the pipe.
  • the invention has the advantage that the free juice drainage area is considerably larger and is about 35 percent of the total juice drainage area.
  • the sieve settles even with difficult mash, i.e. not so easy with slimy and greasy mash. Furthermore, there is a better filter effect, so that less turbidity can be found.
  • the production of such drainage elements is associated with less effort and the mechanical strength of the elements is also improved.
  • the gap widths can be changed continuously. As a result of the structural designs given with such slotted sieves, the surface tension of the liquid is better taken into account than with punched sieves with circular and elongated holes.
  • the press shown in Fig. 1 has a cylindrical elongated press container 1, in the mounting plane 3 through the axis of rotation 2 a shell-shaped membrane 4 is fixed, which separates the pressure medium chamber from the press chamber.
  • this press room there are juice channels 5 which extend over the entire length of the container and are connected to a sieve plate 6.
  • further channels 7 extending transversely thereto can be attached to the container wall.
  • the screen plate 6 arranged on the front side and the juice channels 5, 7 are produced according to the invention from such split screens.
  • the container opening 8 can be closed by a curved sieve cover 9. Furthermore, individual juice channels 10 are arranged in the interior of the container space, which are arranged in the diameter range of the press container 1. These juice channels can have a circular, oval or polygonal cross section.
  • the cylindrical press container 1 extends transversely to its axis of rotation 11, with such a juice channel 13 being installed in alignment with its longitudinal axis 12, the cylindrical region 14 and the lower conical region 15 of which are provided with a slotted screen as a sieve body .
  • FIG. 4 shows the general configuration of such a flat slotted screen, which consists of parallel slotted profiles 16 which are connected with the aid of support rods 17.
  • the trapezoidal shape of the gap profiles 16 is advantageous, the gap between the profiles 16 expanding from the squeezing side 18 to the juice drainage side 19.
  • Such flat slotted screens are particularly suitable for screen plates 6 in the embodiment according to FIG. 1 or for juice channels assembled into a polygon. It is advantageous here if the gap profiles 16 extend in the juice drainage direction, so that the juice obtained during the squeezing out can flow off directly without hindrance.
  • a circular cross-section i.e. cylindrical juice channel shown, the gap profile 20 is wound spirally and is held by means of support rods 21.
  • This embodiment is particularly suitable for cylindrical juice channels, as are used, for example, in the press according to FIG. 3 and the juice channel 13 there or also for the juice channels 10 according to FIG. 2.
  • the filter surface is arranged on the outside, this embodiment otherwise corresponds to the embodiment according to FIGS. 7 and 8.
  • FIGS. 11 and 12 shows a cylindrical body, in which the split profile 20 is wound spirally in accordance with the representations in FIGS. 5 and 6 and as support rods 21 internally attached U-profiles are provided.
  • the number and spacing of these U-profiles can be adapted to the used conditions.
  • FIGS. 13 to 17 show advantageous embodiments for the design of such gap profiles, the gap in the embodiment according to FIG. 13 initially widening from the filter surface 25 with a large conicity and then running downwards with a lower conicity, whereby through the large conicity below the passage opening a particularly good drainage is achieved.
  • the gap runs in a uniform conicity, the gap widening due to wear being small.
  • the profile in the wear zone has an extremely low taper, which largely prevents a substantial widening of the gap due to wear.
  • a profile is shown in which, starting from the filter surface 25, the profile is first provided with parallel head flanks, the gap then becoming larger and then larger extended taper.
  • This profile shape is advantageous for heavily abrasive screenings.
  • the gap profile shown in FIG. 17 is intended for large gap widths with parallel head flanks and subsequent taper.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Centrifugal Separators (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)

Claims (6)

  1. Eléments de drainage en forme de tamis pour une presse de pressurage de substances à teneur en liquide, à savoir des produits agricoles, en particulier des moûts de raisin ou de fruits, comportant un récipient de pressage (1) stationnaire et/ou rotatif, dans lequel sont prévues en tant qu'organe de pressurage une ou plusieurs membranes de pressage flexibles et/ou élastiques (4), lesquelles divisent le récipient (1) en un espace de pression et un espace de pressage, et dans lequel des canaux à jus (5, 7, 10, 13) et des éléments de tamis (6) sont prévus dans l'espace de pressage, caractérisés en ce que, pour un récipient de pressage (1) de forme cylindrique, polygonal ou sphérique, les canaux à jus (5, 7, 10, 13) et les éléments de tamis (6) se composent de tamis à fentes, qui sont reliés à l'aide de barreaux d'appui (17, 21) ou de bagues d'appui (23), et en ce que le profil de fente (16, 20, 22) diminue dans le sens de l'écoulement du jus, c'est-à-dire que la lente s'élargit en sorte que le profil de lente (16, 20, 22) présente une section de forme trapézoïdale et/ou conique.
  2. Eléments de drainage en forme de tamis pour une presse de pressurage de substances à teneur en liquide, à savoir des produits agricoles, en particulier des moûts de raisin ou de fruits, comportant un récipient de pressage (1) stationnaire et/ou rotatif, dans lequel sont prévues en tant qu'organe de pressurage une ou plusieurs membranes de pressage flexibles et/ou élastiques (4), lesquelles divisent le récipient (1) en un espace de pression et un espace de pressage, et dans lequel des canaux à jus (5, 7, 10, 13) et des éléments de tamis (6) sont prévus dans l'espace de pressage, caractérisés en ce que, pour un récipient de pressage (1) de forme cylindrique longitudinale, dont l'axe longitudinal (12) est vertical ou horizontal, ou bien s'étend verticalement ou horizontalement par rapport à l'axe de rotation (2, 11), les canaux à jus (5, 7, 10, 13) et les éléments de tamis (6) se composent de tamis à fentes, qui sont reliés à l'aide de barreaux d'appui (17, 21) ou de bagues d'appui (23), et en ce que le profil de fente (16, 20, 22) diminue dans le sens de l'écoulement du jus, c'est-à-dire que la fente s'élargit en sorte que le profil de fente (16, 20, 22) présente une section de forme trapézoïdale et/ou conique.
  3. Eléments de drainage en forme de tamis selon la revendication 1 ou 2, caractérisés en ce que le profil de fente (16, 20, 22) présente une section à flancs parallèles et se transforme ensuite en une section conique.
  4. Eléments de drainage en forme de tamis selon l'une des revendications 1 à 3, caractérisés en ce que les profils de fentes (16, 22) s'étendent dans la direction d'écoulement du jus.
  5. Eléments de drainage en forme de tamis selon l'une des revendications 1 à 3, caractérisés en ce que les profils de fentes (16, 20, 22) s'enroulent en forme de spirale.
  6. Eléments de drainage en forme de tamis selon l'une des revendications 1 à 5, caractérisés en ce que la surface filtrante (25) se trouve du côté intérieur du conduit ou du côté extérieur du conduit.
EP94100679A 1993-01-21 1994-01-19 Eléments de drainage en forme de grille Expired - Lifetime EP0607932B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9300755U DE9300755U1 (de) 1993-01-21 1993-01-21 Siebförmige Drainageelemente
DE9300755U 1993-01-21

Publications (2)

Publication Number Publication Date
EP0607932A1 EP0607932A1 (fr) 1994-07-27
EP0607932B1 true EP0607932B1 (fr) 1997-04-09

Family

ID=6888375

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94100679A Expired - Lifetime EP0607932B1 (fr) 1993-01-21 1994-01-19 Eléments de drainage en forme de grille

Country Status (4)

Country Link
EP (1) EP0607932B1 (fr)
AT (1) ATE151341T1 (fr)
DE (2) DE9300755U1 (fr)
ES (1) ES2103504T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1275047B (it) * 1994-11-17 1997-07-29 Della Toffola Spa Canali di drenaggio per pressa pneumatica particolarmente per la pressatura di frutta, uva e suoi derivati.
EP0842761A3 (fr) * 1996-04-19 1998-12-02 VELO S.p.A. Presse pour raisins, déchets de fruits et autres produits sous forme de pulpe
AUPR029700A0 (en) * 2000-09-22 2000-10-12 Wine Innovation Pty Ltd A drainage member

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR472406A (fr) * 1914-05-19 1914-12-04 Emile Averseng Dispositif pour faciliter l'écoulement du vin dans les pressoirs
FR1264152A (fr) * 1959-06-25 1961-06-19 Rheinstahl Eisenwerke Muelheim Meiderich Ag Filtre-presse pour extraire l'eau, ou autre liquide, des boues, ou produits analogues, de nature minérale ou végétale, en particulier des grains extrêment fins de boues de charbon, ou schlamms
CH609841A5 (en) * 1976-10-14 1979-03-30 Bucher Guyer Ag Masch Apparatus for separating liquid and solid substances from agricultural produce
AT350913B (de) * 1977-03-17 1979-06-25 Bucher Guyer Ag Masch Einrichtung zum trennen von fluessigen und festen stoffen
CH650648A5 (de) * 1980-11-25 1985-08-15 Bucher Guyer Ag Masch Membranpresse fuer trauben, obst und andere fruechte.
US4788910A (en) * 1983-06-30 1988-12-06 Atlas Pacific Engineering Company Press for extracting juice from comestible solids and semi-solids such as fruits and vegetables
CH664069A5 (de) * 1985-03-04 1988-02-15 Bucher Guyer Ag Masch Presse zum trennen von festen und fluessigen stoffen, insbesondere aus maische bei der fruchtsaftgewinnung.
DE3543135A1 (de) * 1985-12-06 1987-06-11 Willmes Josef Gmbh Presse zum auspressen von landwirtschaftlichen erzeugnissen

Also Published As

Publication number Publication date
EP0607932A1 (fr) 1994-07-27
DE59402324D1 (de) 1997-05-15
ATE151341T1 (de) 1997-04-15
DE9300755U1 (de) 1994-05-26
ES2103504T3 (es) 1997-09-16

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