EP0421503A1 - Flexible diaphragm press - Google Patents
Flexible diaphragm press Download PDFInfo
- Publication number
- EP0421503A1 EP0421503A1 EP90202333A EP90202333A EP0421503A1 EP 0421503 A1 EP0421503 A1 EP 0421503A1 EP 90202333 A EP90202333 A EP 90202333A EP 90202333 A EP90202333 A EP 90202333A EP 0421503 A1 EP0421503 A1 EP 0421503A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- fact
- correspondance
- diaphragm
- press
- 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.)
- Granted
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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
- Flexible diaphragm presses employed for liquid producing material such as grapes, mixed fruits and the like are well known in the field, they are made up of essentially a cylindrical countainer capable of rotating on its own longitudinal axis and having on the outer plating one or more loading doors, besides having the possibility of loading through a shaft placed in correspondance to the rotation axis and containing inside it a flexible diaphragm made up of a flat sheet substantially sack shaped fitted to adhere to half of the internal wall of the container.
- the edge of the flexible diaphragm is fixed to the container along the periphery of a plane lying in correspondance to the rotation axis of the container, and therein the squeezing pressure is obtained blowing pressurized air which slowly increases to reach a maximum pressure of 2 bars between the walls of the container against which adheres the diaphragm.
- the invention consists in foreseeing a cylindrical container arranged. on a support which is made to turn according to its median axis perpendicular to the longitudinal axis; in mounting in it a sack shaped diaphragm covering and at the same time clinging to the whole internal surface of the container, plating and ends, excluding the part corresponding to the introduction door of the material; on arranging a collecting channel for the liquid around the longitudinal axis of the container; in placing the loading door coinciding with one of the bottoms, in arranging the conduits for the discharging of the liquid deriving from the pressing process in correspondance to the centre of the two bottoms.
- the diaphragm press according to the invention is made up of a cylindrical tank 1, having a reinforcement ring 2 and pivots 3 and 3′, arranged on supports 4, 4′, in correspondance to the median axis A-A′, to allow the rotation of the tank 1 around its own median horizontal axis, the rotation of which is obtained by known means using an electric motor and its relative reducer 6.
- the tank 1 has one of its two ends, equipped with a door, for the loading of the material to be squashed and conduits for the discharging of residual material after squashing, and houses a coupling 8, in correspondance to the longitudinal axis B-B′ - see also fig. 3 - obtained in the door 7, and symmetrically in the centre of the bottom, a second coupling wholely threaded 9 - see also fig. 5 - into which is introduced an end of a cylinder shaped drainage conduit 10 the section being of any shape circular, polygonal etc.
- Coupling joints 8 and 9 in the part protruding from the tank are externally threaded to each receive a butterfly valve not illustrated, to prevent the emission of the liquid from the tank.
- the drainage conduit 10 has bores on its surface to allow flowing of the liquid only while retaining the solid parts for example as reguards grapes, the pips and skins.
- a sack shaped flexible diaphragm 12 which covers and adheres to the entire internal surface of the container except for the part corresponding to door 7.
- This diaphragm is connected to the part of the door with its tip to the lower part of a flange 15 by means of a counter flange 16 - see fig. 4, - and in correspondance to the end between the two flanges 17 and 18.
- Flange 15 is then suited to meet with flange 19 above belonging to door 7 to close this part of the container with bolts, or with other know means such as automatic hooks or a bayonette system.
- Both the conduit 20 and the conduits 21/21′/21 ⁇ /21′′′ are bored along its surface and turned towards the inside of the tank, which in turn is bored in correspondance to it.
- Said drainage conduits can be arranged outside the tank as shown in fig. 2, indifferently inside it according to another form of realization or even obtained as a result of the shaping of the plating of the container.
- the pressing process using the press according to the invention is therefore obtained by blowing compressed air slowly increasing in pressure between the internal wall of the container and the external wall of the diaphragm through appropriate conduits 20/21 which, due to their particular characteristics allow a uniform distribution alternating the operation with the production of a vacuum still between the internal wall of the container and the external one of the diaphragm, so that the diaphragm at the stage of the operation cycle adheres to the walls of the container and the material is, free to crumble as a result of a series of rotations of the container around its axis A-A′, as occurs in diaphragm presses of the known type which on the contrary rotate around ther axis B-B′.
- Another advantage to be underlined is the fact that with the invention the tank being arranged vertically favours and notably increases the draining of the liquid even from the first stage of the loading of the material to be processed as a consequence of a higher hydrostatic pressure generated on the lower lying material, considering that the tank is in a vertical position during loading stage.
- the system facilitates the crushing of the material to be squeezed, grapes in particular, an operation which requires less rotations of the container respect to the number of rotations necessary in normal presses having horizontal tanks.
- the device consists in connecting one of the two supports and rotation pivots 3′ of the tark 1, which in this case must be hollow, to a tubing 101 corrected by means of tube bend 102 to loading door 7 of the press, adding on the outerportion of said concave pivots a rotating joint 103 to which is connected a tubing deriving from a feeding pump for the must and grape skins.
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- External Artificial Organs (AREA)
- Saccharide Compounds (AREA)
- Pressure Vessels And Lids Thereof (AREA)
- Packaging Of Special Articles (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Food-Manufacturing Devices (AREA)
- Packaging Frangible Articles (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
Description
- Flexible diaphragm presses employed for liquid producing material such as grapes, mixed fruits and the like are well known in the field, they are made up of essentially a cylindrical countainer capable of rotating on its own longitudinal axis and having on the outer plating one or more loading doors, besides having the possibility of loading through a shaft placed in correspondance to the rotation axis and containing inside it a flexible diaphragm made up of a flat sheet substantially sack shaped fitted to adhere to half of the internal wall of the container.
- The edge of the flexible diaphragm is fixed to the container along the periphery of a plane lying in correspondance to the rotation axis of the container, and therein the squeezing pressure is obtained blowing pressurized air which slowly increases to reach a maximum pressure of 2 bars between the walls of the container against which adheres the diaphragm.
- On the other half, or in the internal central area of the container, are longitudinally arranged a series of small bored conduits, deriving from a manifold placed eighther on the inside or the outside the container to collect the squeezed liquid.
- This type of machine has found great success during these last few years due to the enormous advantages that this kind of pressing offers respect to power presses and because it guarantees high quality must in that it works at a very low pressure, from 0,10 to 0,6 bars, obtaining most of the must, so-called flowers, of quantity up to 10% or more respect to power presses, as with the latter ever during the first stage of pressing are discharged substances contained in the stalks and skins.
- Because flexible diaphragm machines are essentially containers subjected to pressure, they must follow the safety regulations laid down in the various countries, and in any case according to certain safety rules to prevent explosions or implosions and because of the particular constructive characteristics involved, the realization of the container and the relative evaluation is rather complicated and difficult to achieve.
- The outcome is that these machines become rather expensive and therefore at the moment they can be employed only in big plants in that they are usually built in large sizes and conserently of great capacities. We have found, and it is the object of this invention, that it is possible to make flexible diaphragm presses having the same known characteristics as to function and relative results, which involue less difficulty in making the pressure container and consequently at reduced costs so as to permit; smaller sizes an therefore within the range of smaller wine producing plants.
- The invention consists in foreseeing a cylindrical container arranged. on a support which is made to turn according to its median axis perpendicular to the longitudinal axis; in mounting in it a sack shaped diaphragm covering and at the same time clinging to the whole internal surface of the container, plating and ends, excluding the part corresponding to the introduction door of the material; on arranging a collecting channel for the liquid around the longitudinal axis of the container; in placing the loading door coinciding with one of the bottoms, in arranging the conduits for the discharging of the liquid deriving from the pressing process in correspondance to the centre of the two bottoms.
- The invention will be better understood with the help of a description of an example of realization to be taken as being merely illustrative and in no way limitative and a series of drawings in which:
- - fig. 1: shows a partial section of a side view of the vibrating diaphragm press according to the invention;
- - fig. 2: shows a side view of the vibrating diaphragm press in correspondance to its support;
- - fig. 3: shows an enlargement of detail A of fig. 1 showing the connection of the small conduits to the lid;
- - fig. 4: detail B of fig. 1 showing the connection of the vibrating diaphragm to the loading door;
- - fig. 5: is an enlargement of detail C of fig. 1 showing the connection of the diaphragm and the small conduits to the bottom of the container.
- - fig. 6: device to make the press rotate during the loading stage.
- With reference to 1/2/3/4 and 5, the diaphragm press according to the invention is made up of a
cylindrical tank 1, having areinforcement ring 2 andpivots tank 1 around its own median horizontal axis, the rotation of which is obtained by known means using an electric motor and its relative reducer 6. - The
tank 1 has one of its two ends, equipped with a door, for the loading of the material to be squashed and conduits for the discharging of residual material after squashing, and houses acoupling 8, in correspondance to the longitudinal axis B-B′ - see also fig. 3 - obtained in the door 7, and symmetrically in the centre of the bottom, a second coupling wholely threaded 9 - see also fig. 5 - into which is introduced an end of a cylinder shapeddrainage conduit 10 the section being of any shape circular, polygonal etc. -, and which tapers at its two bottoms with two truncatedcones couplings coupling 14 being extreemely threaded and connecting inside the coupling 9, andcoupling 13 is simply introduced intocoupling 8.Coupling joints 8 and 9 in the part protruding from the tank are externally threaded to each receive a butterfly valve not illustrated, to prevent the emission of the liquid from the tank. - The
drainage conduit 10 has bores on its surface to allow flowing of the liquid only while retaining the solid parts for example as reguards grapes, the pips and skins. - Inside the
tank 1 is also arranged a sack shapedflexible diaphragm 12 which covers and adheres to the entire internal surface of the container except for the part corresponding to door 7. - This diaphragm is connected to the part of the door with its tip to the lower part of a
flange 15 by means of a counter flange 16 - see fig. 4, - and in correspondance to the end between the twoflanges - This connection is air tight so as to determine two completely separate chambers between the internal face and the external face of the diaphragm itself.
Flange 15 is then suited to meet withflange 19 above belonging to door 7 to close this part of the container with bolts, or with other know means such as automatic hooks or a bayonette system. - Along the external wall of
tank 1, and in corrispondance to theplating 2, are arranged means not illustrated in the drawings fitted to create, according to the case pressure or vacuum, connected to anair conduit 20 connected in turn to fourvertical branches 21/21′/ 21˝; / 21‴. - Both the
conduit 20 and theconduits 21/21′/21˝/21‴ are bored along its surface and turned towards the inside of the tank, which in turn is bored in correspondance to it. - Said drainage conduits can be arranged outside the tank as shown in fig. 2, indifferently inside it according to another form of realization or even obtained as a result of the shaping of the plating of the container.
- The pressing process using the press according to the invention is therefore obtained by blowing compressed air slowly increasing in pressure between the internal wall of the container and the external wall of the diaphragm through
appropriate conduits 20/21 which, due to their particular characteristics allow a uniform distribution alternating the operation with the production of a vacuum still between the internal wall of the container and the external one of the diaphragm, so that the diaphragm at the stage of the operation cycle adheres to the walls of the container and the material is, free to crumble as a result of a series of rotations of the container around its axis A-A′, as occurs in diaphragm presses of the known type which on the contrary rotate around ther axis B-B′. - Another advantage to be underlined is the fact that with the invention the tank being arranged vertically favours and notably increases the draining of the liquid even from the first stage of the loading of the material to be processed as a consequence of a higher hydrostatic pressure generated on the lower lying material, considering that the tank is in a vertical position during loading stage.
- Furthermore, it has been noted that the system facilitates the crushing of the material to be squeezed, grapes in particular, an operation which requires less rotations of the container respect to the number of rotations necessary in normal presses having horizontal tanks.
- Finally, the fact that it has only one central drainage conduit facilitates and greatly simplifies cleaning and servicing operations which can be performed blowing pressurized air from the opening normally used for the drainage of the pressed liquid.
- We have found that in certain cases, for example when pressing fermented grapes without stalks it can be necessary to make the press rotate at regular intervals already during the loading stage, a characteristic also offered by known presses having horizontal axis.
- This type of procedure is possible also with the press according to the present invention using the device illustrated in fig. 6.
- The device consists in connecting one of the two supports and
rotation pivots 3′ of thetark 1, which in this case must be hollow, to atubing 101 corrected by means oftube bend 102 to loading door 7 of the press, adding on the outerportion of said concave pivots a rotatingjoint 103 to which is connected a tubing deriving from a feeding pump for the must and grape skins. - It is possible therefore, during loading stage, to interrupt the loading at regular intervals and making the tark rotate for a few turns before the squeezing stage. So as to avoid the skins from clogging the drainage conduits of the
liquid 10.
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT90202333T ATE99599T1 (en) | 1989-10-03 | 1990-09-03 | MEMBRANE PRESS. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT02191089A IT1237627B (en) | 1989-10-03 | 1989-10-03 | DIAPHRAGM PRESS. |
IT2191089 | 1989-10-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0421503A1 true EP0421503A1 (en) | 1991-04-10 |
EP0421503B1 EP0421503B1 (en) | 1994-01-05 |
Family
ID=11188627
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90202333A Expired - Lifetime EP0421503B1 (en) | 1989-10-03 | 1990-09-03 | Flexible diaphragm press |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0421503B1 (en) |
AT (1) | ATE99599T1 (en) |
DE (1) | DE69005771T2 (en) |
ES (1) | ES2050354T3 (en) |
IT (1) | IT1237627B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0585596A1 (en) * | 1992-09-03 | 1994-03-09 | Josef Willmes GmbH | Press for squeezing-out liquid from liquid-containing materials |
WO1995001258A2 (en) * | 1993-06-29 | 1995-01-12 | Josef Willmes Gmbh | Hydraulic press for pressing out liquid-containing substances |
EP0668148A1 (en) * | 1994-02-14 | 1995-08-23 | Della Toffola S.p.A. | Device for fixing a tubular membrane on a pneumatic press, specially suitable for pressing fruit |
ITPN20130065A1 (en) * | 2013-11-11 | 2015-05-12 | Tmci Padovan S P A | FILTERS FOR SLUDGE TREATMENT AND ITS PRESSING METHOD |
US20230364877A1 (en) * | 2020-09-30 | 2023-11-16 | Willmes Anlagentechnik Gmbh | Modular press |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2178385A (en) * | 1939-01-14 | 1939-10-31 | Alward Francis | Clothes wringer and rinser |
CH412577A (en) * | 1962-04-09 | 1966-04-30 | Rauch Josef | Juicer |
DE2656369A1 (en) * | 1975-12-22 | 1977-06-30 | Bucher Guyer Ag Masch | PRESS FOR SEPARATING LIQUIDS AND SOLIDS |
EP0145948A1 (en) * | 1983-11-12 | 1985-06-26 | Josef Willmes GmbH | Press for squeezing out liquid from liquid-containing materials |
GB2158697A (en) * | 1984-05-16 | 1985-11-20 | Richard Antony Morton Maskell | A juice extracting machine |
FR2594069A1 (en) * | 1986-02-07 | 1987-08-14 | Champagne Station Oenotechniqu | Pneumatic press |
-
1989
- 1989-10-03 IT IT02191089A patent/IT1237627B/en active IP Right Grant
-
1990
- 1990-09-03 DE DE69005771T patent/DE69005771T2/en not_active Expired - Fee Related
- 1990-09-03 ES ES90202333T patent/ES2050354T3/en not_active Expired - Lifetime
- 1990-09-03 AT AT90202333T patent/ATE99599T1/en not_active IP Right Cessation
- 1990-09-03 EP EP90202333A patent/EP0421503B1/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2178385A (en) * | 1939-01-14 | 1939-10-31 | Alward Francis | Clothes wringer and rinser |
CH412577A (en) * | 1962-04-09 | 1966-04-30 | Rauch Josef | Juicer |
DE2656369A1 (en) * | 1975-12-22 | 1977-06-30 | Bucher Guyer Ag Masch | PRESS FOR SEPARATING LIQUIDS AND SOLIDS |
EP0145948A1 (en) * | 1983-11-12 | 1985-06-26 | Josef Willmes GmbH | Press for squeezing out liquid from liquid-containing materials |
GB2158697A (en) * | 1984-05-16 | 1985-11-20 | Richard Antony Morton Maskell | A juice extracting machine |
FR2594069A1 (en) * | 1986-02-07 | 1987-08-14 | Champagne Station Oenotechniqu | Pneumatic press |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0585596A1 (en) * | 1992-09-03 | 1994-03-09 | Josef Willmes GmbH | Press for squeezing-out liquid from liquid-containing materials |
WO1995001258A2 (en) * | 1993-06-29 | 1995-01-12 | Josef Willmes Gmbh | Hydraulic press for pressing out liquid-containing substances |
WO1995001258A3 (en) * | 1993-06-29 | 1995-03-02 | Willmes Josef Gmbh | Hydraulic press for pressing out liquid-containing substances |
EP0668148A1 (en) * | 1994-02-14 | 1995-08-23 | Della Toffola S.p.A. | Device for fixing a tubular membrane on a pneumatic press, specially suitable for pressing fruit |
ITPN20130065A1 (en) * | 2013-11-11 | 2015-05-12 | Tmci Padovan S P A | FILTERS FOR SLUDGE TREATMENT AND ITS PRESSING METHOD |
WO2015068026A1 (en) | 2013-11-11 | 2015-05-14 | Tmci Padovan S.P.A. | Filter press for treating sludge and the corresponding method of pressing |
US20230364877A1 (en) * | 2020-09-30 | 2023-11-16 | Willmes Anlagentechnik Gmbh | Modular press |
Also Published As
Publication number | Publication date |
---|---|
DE69005771T2 (en) | 1994-07-28 |
DE69005771D1 (en) | 1994-02-17 |
IT8921910A1 (en) | 1991-04-03 |
ATE99599T1 (en) | 1994-01-15 |
IT8921910A0 (en) | 1989-10-03 |
ES2050354T3 (en) | 1994-05-16 |
IT1237627B (en) | 1993-06-12 |
EP0421503B1 (en) | 1994-01-05 |
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