EP1049577A1 - Balg einer balgpresse zum trennen flüssiger und fester stoffe - Google Patents
Balg einer balgpresse zum trennen flüssiger und fester stoffeInfo
- Publication number
- EP1049577A1 EP1049577A1 EP99953509A EP99953509A EP1049577A1 EP 1049577 A1 EP1049577 A1 EP 1049577A1 EP 99953509 A EP99953509 A EP 99953509A EP 99953509 A EP99953509 A EP 99953509A EP 1049577 A1 EP1049577 A1 EP 1049577A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bellows
- press
- diaphragm
- container
- holding function
- 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
Links
- 239000000126 substance Substances 0.000 title claims abstract description 8
- 239000007788 liquid Substances 0.000 title claims abstract description 6
- 239000007787 solid Substances 0.000 title claims abstract description 5
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 239000004744 fabric Substances 0.000 claims description 17
- 239000004033 plastic Substances 0.000 claims description 11
- 229920003023 plastic Polymers 0.000 claims description 11
- 238000004873 anchoring Methods 0.000 claims description 7
- 239000004753 textile Substances 0.000 claims description 7
- 229920001971 elastomer Polymers 0.000 claims description 5
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 2
- 230000009969 flowable effect Effects 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 7
- 239000012528 membrane Substances 0.000 description 17
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000015203 fruit juice Nutrition 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
-
- 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
- B30B9/262—Permeable casings or strainers means disposed in the casing facilitating the squeezing-out of liquid
Definitions
- the invention relates to a bellows of a bellows press for separating liquid and solid substances by the action of a flowable pressure medium on the substances via the bellows, which is fastened in a press container of the press and divides it into a pressure chamber and a press chamber.
- a membrane (also referred to as bellows) of a press intended for separating liquid and solid substances is known from CH-A-686.932 (Bucher-Guyer). This membrane is fastened in a cylindrical press container of the press between the pressure chamber and the press chamber parallel to the cylinder axis.
- the membrane is shaped like a trough and consists of two semicircular membrane parts facing the end faces of the press container and a central membrane part connected to them on both sides and corresponding to approximately half the container shell.
- the membrane parts are made of a plastic-coated fabric on both sides.
- the semicircular membrane parts are divided into segments, the thread systems of the fabric in each segment of which are aligned in parallel to the radially running center bisector. This achieves improved dimensional stability in the main radial load directions and prevents the connection between the fabric and the coating from being destroyed.
- the lifespan of such known membranes is unsatisfactory and a main reason for the limited spread of the corresponding membrane presses.
- the membrane material used is a polyester fabric coated on both sides with a cross-linked polyurethane.
- the influence of drainage elements suspended from the membranes has a major influence on the life of the membranes. When the membrane is withdrawn in the press under vacuum and when the material to be pressed is loosened, great forces are applied to the membrane via these drainage elements. These forces lead to high tensile and shear stresses.
- Damage patterns of membranes show a detachment of the coating from the tissue with blistering. As soon as one of the bubbles tears open, the membrane leaks and must then be repaired or replaced entirely.
- the invention has for its object to avoid the disadvantages of the known membranes mentioned by a new design.
- this object is achieved in a bellows of the type mentioned at the outset by a double design consisting of two parts, both of which extend over the entire bellows surface and are only firmly connected to one another at a number of separate connection points on the bellows surface and of which one part has essentially only a sealing function and the other part has essentially only a holding function.
- the bellows is preferably designed in such a way that the part with the sealing function is arranged on the press chamber side and the part with the holding function on the pressure chamber side and that connection elements are provided at the separate connection points of these parts, which have means for anchoring flexible cable-like drainage elements which can be separated through the press chamber between the bellows and a jacket of the press container Press.
- the part with the sealing function is advantageously designed as a cloth made of homogeneous rubber or cross-linked polyurethane with a thickness sufficient for the required stability
- the part with the holding function is designed as a cloth made of gas-permeable, uncoated, high-strength polyamide fabric.
- the part with the holding function comprises a multiaxial scrim or network of several thread systems.
- FIG. 1 shows a cylindrical press container of a bellows press with a press bellows according to the invention in cross section
- FIG. 3 is a fastening of the press bellows according to FIG. 1 with its edge on the jacket of the press container by turning over and clamping both parts,
- FIG. 4 shows a variant of the fastening according to FIG. 3 with each part folded over by a flexible strand
- FIG. 5 shows a variant of the fastening according to FIG. 3 with the sealing part of the press bellows being folded over and the holding part being welded to the sealing part
- FIG. 6 shows a section of a press bellows according to the invention in plan view
- 7 shows a cross section through two parts of a press bellows according to the invention
- Fig. 8 shows a cross section through a variant of the press bellows with a plastic-coated but gas-permeable holding part
- Fig. 9 shows a cross section through a variant of the press bellows with a plastic-coated holding part with air passages on both sides.
- Fig. 1 shows in cross section a cylindrical press container 1 of a bellows press known per se, the remaining parts of which are not all shown.
- the press container 1 is rotatably mounted about its longitudinal axis 35.
- a bellows 3 is tightly clamped with its edge by means of fastening elements 11 along two diametrical surface lines and the diameter lines of the base and cover parts connecting them.
- the shape of the press bellows 3 is selected in the manner of a trough such that it divides the press container 1 into a press chamber 4 and a pressure chamber 5, but can lie against the inner surface of the press container 1 in an extended state.
- the press bellows 3 consists of two parts 13, 14, of which the part 13 on the pressure chamber side mainly has a holding function and the part 14 on the press chamber side mainly has a sealing function.
- the pressure chamber 5 can be pressurized with a pressure medium.
- the pressure medium is supplied via an axial rotary inlet, not shown here.
- Pressed material 7 is also fed into the pressing chamber 4 via an axial inlet (not shown) or via a tank cap 8 when the latter is turned upwards.
- the fuel cap 8 also serves to empty the pomace and as a manhole.
- Drainage elements 6, which have a flexible core with drainage grooves for pressed liquids, for example, extend between the press bellows 3 and the wall of the press container 1 on the press chamber side
- the drainage elements 6 are connected on the one hand via quick-release fasteners 9 to juice collecting channels 10, which open into a collecting line, not shown. On the other hand, the drainage elements 6 are over
- the drainage elements 6 are so long that when the pressing space 4 is filled with pressing material 7, e.g. Fruit mash, which can be followed by the press bellows 3, which retreats to the inner surface of the press container 1 on the pressure chamber side.
- pressing material 7 e.g. Fruit mash
- the press bellows 3 thus has the following functions during operation of the bellows press: airtight separation of the press chamber 4 from the pressure chamber 5, retention of the drainage elements 6, retraction and tension of the drainage elements 6 in the press cake of the pressed material 7 when loosening and
- the press bellows is made twice from a bellows carrier 13 and a bellows seal 14.
- the bellows carrier 13 consists of a gas-permeable, high-strength flexible material with little stretch under tension.
- the bellows carrier 13 transmits the forces between the connecting elements 12 and the drainage elements 6.
- the bellows carrier 13 protects the bellows seal 14 against the wall of the press container 1 when the press bellows 3 is withdrawn under vacuum in the pressure chamber 5, in the event of sliding and friction processes occurring between the bellows 3 and Wall.
- the bellows seal 14 consists of a single or multi-layer flexible, gas-tight plastic or rubber blanket with or without textile reinforcement.
- the bellows seal 14 has a larger one than the bellows carrier 13 under the same tension elastic stretch.
- bellows carrier 13 and bellows seal 14 are connected to one another on the connecting elements 12 for the drainage elements 6 and on the fastening elements 11 at the edge.
- the bellows support 13 prevents the bellows seal 14 from being overstretched and damaged when forces are exerted on the drainage elements 6 when the bellows press is in operation.
- the forces exerted on the bellows seal 14 as a result of the pressure difference between a vacuum in the pressure chamber 5 and the press chamber 4 are introduced into the drainage elements 6 by the bellows seal 14 via the bellows carrier 13 and the connecting elements 12.
- Fig. 2 shows one of the connecting elements 12 for
- the bellows carrier 13 is connected to the bellows seal 14 by means of holding plates 36, 37 and a screw 38 with a nut 16, each through a hole 39. Between the nut 16 and the holding plate 37, a sealing washer 17 is provided for sealing between the pressure chamber 5 and the press chamber 4.
- the holding plate 37 carries a bracket 15, with which a drainage element 6 according to FIG. 1 is connected directly or via a flexible element.
- FIG. 3 shows an embodiment of the fastening element 11 for the edge of the press bellows 3 on a wall 18 of the press container 1 according to FIG. 1 in a detailed cross section.
- a clamping strip 21 is attached along the wall 18, on which an elongated clamping tab 22 is screwed by means of screws 40.
- the edge of the press bellows 3 composed of bellows carrier 13 and bellows seal 14 is wrapped around a flexible strand 20, for example a rope or a round rubber, to form a bead 41.
- the bead 41 is fixed between the clamping strip 21 and the clamping tab 22.
- the bellows parts 13 and 14 are glued, welded or sewn together at areas 19. Since the bellows carrier 13 is not gas-tight, it is a seal 23 inserted between the terminal block 21 and the clamping tab 22. This attachment extends without gaps along the entire edge of the press bellows 3.
- FIG. 4 shows a variant of the fastening according to FIG. 3, the same reference numerals indicating corresponding components.
- each of the two bellows parts 13 and 14 is wrapped around its own flexible strand 20.
- the clamping tab 22 is thus designed to clamp two strands 20.
- Mutual welding of the bellows parts 13, 14 according to FIG. 3 is avoided in the embodiment according to FIG. 4, only each bellows part 13 and 14 is individually welded to regions 24.
- FIG. 5 shows a further variant of the fastening according to FIG. 3, the same reference numerals indicating corresponding components.
- the bellows seal 14 is fastened by turning it around a strand 25 between the clamping strip 21 and the clamping tab 22.
- the bellows carrier 13 is welded and / or sewn to areas 27 with an auxiliary band 26 with the bellows seal 14. Since the bellows seal 14 is gas-tight, the seal 23 according to FIG. 3 between the terminal strip 21 and the clamping tab 22 according to FIGS. 3 and 4 is omitted here.
- FIG. 6 shows a detail from a press bellows 3 according to the invention according to FIG. 1 in a top view. Only the lower left corner of the bellows seal 14 can be seen because the bellows carrier 13, symbolically represented as a multiaxial network and lying above it, covers the rest of the bellows seal 14. Both bellows parts 13, 14 have a plurality of through holes 39 of the type shown in FIG. 2, to which the connecting elements 12 for anchoring the drainage elements 6 are attached to the press bellows 3. 6 is flat, the entire press bellows 3 has a trough-like shape of the type described for FIG. 1.
- Fig. 7 shows in a cross section a section of two superimposed parts 13, 14 one Press bellows according to the invention according to FIG. 1. Both parts 13, 14 are connected to one another only by the fastening elements 11 not shown here at the edge and by the connecting elements 12 according to FIG. 1.
- the bellows carrier 13 is shown here as an open, gas-permeable textile fabric. It can also be designed as a multi-axially linked scrim.
- the bellows carrier 13 consists of a textile fabric 29 which is coated on one side with a plastic 30.
- a large number of further holes 31 are arranged in the bellows carrier 13.
- the bellows seal 14 is designed as in Fig. 7 as a homogeneous cloth made of plastic or rubber. The coating of the bellows carrier 13 with a plastic 30 reduces the wear effect in the event of operational friction of the bellows carrier 13 on the wall of the press container 1.
- a further variant of the press bellows according to FIG. 9 shown in FIG. 7 shows, as the bellows carrier 13, a fabric with air holes 31 coated on both sides with plastic.
- the bellows seal 14 is also designed here as a textile fabric coated on both sides, but without air holes.
- the elasticity of the bellows seal 14 under tension is greater than that of the bellows carrier 13, so that the tensile forces acting on the connecting elements 12 are predominantly transmitted by the bellows carrier 13.
- overstressing of the bellows seal can be prevented in all the exemplary embodiments shown in FIGS. 1-9.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Diaphragms And Bellows (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH234598 | 1998-11-25 | ||
| CH234598 | 1998-11-25 | ||
| PCT/CH1999/000542 WO2000030841A1 (de) | 1998-11-25 | 1999-11-17 | Balg einer balgpresse zum trennen flüssiger und fester stoffe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1049577A1 true EP1049577A1 (de) | 2000-11-08 |
| EP1049577B1 EP1049577B1 (de) | 2006-02-01 |
Family
ID=4231633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99953509A Expired - Lifetime EP1049577B1 (de) | 1998-11-25 | 1999-11-17 | Balgpresse zum trennen flüssiger und fester stoffe |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6530315B1 (de) |
| EP (1) | EP1049577B1 (de) |
| AR (1) | AR021093A1 (de) |
| AT (1) | ATE316863T1 (de) |
| DE (1) | DE59913102D1 (de) |
| ES (1) | ES2257078T3 (de) |
| WO (1) | WO2000030841A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2812235B1 (fr) * | 2000-07-27 | 2003-01-17 | Somavi | Pressoir pour matiere telle que de la vendange |
| CA2550778A1 (en) * | 2006-06-20 | 2007-12-20 | Daniel G. Kowalski | Pneumatic press with hose actuator |
| IT201800002968A1 (it) * | 2018-02-23 | 2019-08-23 | NoForm Srl | Pressa pneumatica per pressare un prodotto vegetale |
| IT201900021528A1 (it) * | 2019-11-19 | 2021-05-19 | Defranceschi S R L | Pressa pneumatica per uso enologico. |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1012527B (de) * | 1955-02-03 | 1957-07-18 | Josef Willmes | Vorrichtung zum Auspressen von Fruechten od. dgl. Fluessigkeit enthaltenden Massen |
| DE8103782U1 (de) * | 1981-02-12 | 1981-08-06 | Howard Machinery Ltd., Bury St. Edmunds, Suffolk | Pneumatische tankpresse |
| CH659429A5 (de) * | 1982-12-21 | 1987-01-30 | Bucher Guyer Ag Masch | Einrichtung zum trennen von fluessigen und festen stoffen, insbesondere zum entsaften. |
| CH662087A5 (de) * | 1983-08-26 | 1987-09-15 | Bucher Guyer Ag Masch | Membranpresse zum auspressen von fluessigkeitshaltigen stoffen. |
| GB2176504B (en) * | 1985-05-31 | 1988-10-26 | Mitsubishi Heavy Ind Ltd | Compression membrane |
| CH680382A5 (de) * | 1989-08-24 | 1992-08-14 | Bucher Guyer Ag Masch | |
| CH681523A5 (de) * | 1990-06-15 | 1993-04-15 | Bucher Guyer Ag Masch | |
| CH686932A5 (de) * | 1990-07-04 | 1996-08-15 | Bucher Guyer Ag Masch | Membrane einer zum Trennen fluessiger und fester Stoffe bestimmten Presse. |
| DE4131324A1 (de) * | 1991-09-20 | 1993-03-25 | Willmes Josef Gmbh | Einrichtung zum befestigen und abdichten einer membrane an einer presse |
| FR2686226A1 (fr) * | 1992-01-17 | 1993-07-23 | Champagne Station Oenotechniqu | Pressoir a membrane. |
| US5349896A (en) * | 1993-06-14 | 1994-09-27 | W. L. Gore & Associates, Inc. | Pump diaphragm |
| US5560279A (en) * | 1995-03-16 | 1996-10-01 | W. L. Gore & Associates, Inc. | Pre-failure sensing diaphragm |
-
1999
- 1999-11-04 AR ARP990105593A patent/AR021093A1/es active IP Right Grant
- 1999-11-17 DE DE59913102T patent/DE59913102D1/de not_active Expired - Fee Related
- 1999-11-17 EP EP99953509A patent/EP1049577B1/de not_active Expired - Lifetime
- 1999-11-17 US US09/600,272 patent/US6530315B1/en not_active Expired - Fee Related
- 1999-11-17 ES ES99953509T patent/ES2257078T3/es not_active Expired - Lifetime
- 1999-11-17 AT AT99953509T patent/ATE316863T1/de not_active IP Right Cessation
- 1999-11-17 WO PCT/CH1999/000542 patent/WO2000030841A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0030841A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE316863T1 (de) | 2006-02-15 |
| DE59913102D1 (de) | 2006-04-13 |
| ES2257078T3 (es) | 2006-07-16 |
| EP1049577B1 (de) | 2006-02-01 |
| AR021093A1 (es) | 2002-06-12 |
| US6530315B1 (en) | 2003-03-11 |
| WO2000030841A1 (de) | 2000-06-02 |
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