EP0696961A1 - Verfahren zur steuerung oder regelung des pressdruckes einer presse zur fest-/flüssigtrennung - Google Patents
Verfahren zur steuerung oder regelung des pressdruckes einer presse zur fest-/flüssigtrennungInfo
- Publication number
- EP0696961A1 EP0696961A1 EP95907538A EP95907538A EP0696961A1 EP 0696961 A1 EP0696961 A1 EP 0696961A1 EP 95907538 A EP95907538 A EP 95907538A EP 95907538 A EP95907538 A EP 95907538A EP 0696961 A1 EP0696961 A1 EP 0696961A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- press
- time
- outflow
- pressure
- limited
- 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
- 238000000034 method Methods 0.000 title claims abstract description 70
- 239000007788 liquid Substances 0.000 title claims abstract description 24
- 230000001105 regulatory effect Effects 0.000 title claims description 8
- 230000001276 controlling effect Effects 0.000 title claims description 7
- 239000007787 solid Substances 0.000 title description 4
- 230000001133 acceleration Effects 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 22
- 239000007791 liquid phase Substances 0.000 claims description 16
- 238000000926 separation method Methods 0.000 claims description 5
- 239000012071 phase Substances 0.000 claims description 2
- 230000009131 signaling function Effects 0.000 claims description 2
- 238000003825 pressing Methods 0.000 description 42
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 4
- 235000013399 edible fruits Nutrition 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 235000015203 fruit juice Nutrition 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000013049 sediment Substances 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
- B30B9/04—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 press rams
- B30B9/047—Control arrangements
Definitions
- the invention relates to a method for controlling or regulating the pressing pressure in the solid-liquid separation of pressed material by means of a press which exerts at least one pressing cycle during a pressing process by means of an increase in pressure.
- discontinuous batch press filter presses are currently known. They are designed as piston presses, chamber filter presses, tank presses, packing presses, basket presses, etc., the
- the invention is therefore based on the object of specifying a method for controlling or regulating the pressing pressure of the type specified above, which method
- this object is achieved in that the outflow of the liquid phase from the press is measured directly or indirectly and that a point in time is determined from the time course of the outflow behavior of this phase at which the further pressure increase is limited to a constant value is, this point in time for each press cycle in a time interval that begins at the beginning of the drain and after
- Fig. 1 shows a partial section through a horizontal
- Fig. 2 is a graphical representation of the time course of the discharge behavior of the liquid phase of a press acc. Fig. 1
- FIG. 3 shows a graphical representation of the time course of the pressing pressure and the liquid pressed off in a single piston return stroke and subsequent piston advance of a press according to FIG. Fig. 1
- FIG. 7 shows a graphical representation of the time profile of the pressing pressure and the amount of liquid squeezed out in a further example of the method according to the invention
- 8 shows a graphical representation of the time profile of the pressing pressure and the amount of liquid squeezed out in a further example of the method according to the invention
- FIG. 9 shows a diagram of a system for carrying out a method according to the invention for controlling or regulating the pressing pressure.
- FIG. 1 schematically shows a horizontal filter piston press of a known type. It comprises a press jacket 1 which is detachably connected to a pressure plate 2. Opposite the pressure plate 2 is the second pressure plate 3 within the press jacket 1, which is attached to a piston rod 13 via a press piston 6. The piston rod 13 is movably supported in a hydraulic cylinder 12 and carries out the pressing processes via the press piston 6. Between the printing plates 2 and 3 is a closable
- Filling opening 14 introduced the material to be pressed 7, through which a plurality of drainage elements 5 extends.
- the drainage elements 5 conduct the liquid phase of the material to be pressed 7 in the collecting chambers 8 and 9 which are arranged behind the pressure plates 2 and 3 during the pressing process.
- the pressed material can be fruit and the liquid phase can therefore be fruit juice.
- the liquid phase passes from the material to be pressed 7 via the collecting chambers 8, 9 into drain lines
- the pressing force is generated in the hydraulic cylinder 12, and there is a non-positive connection, not shown, between the front pressure plate 2 in addition to the pressing jacket 1 and the cylinder 12.
- the press is emptied by loosening and axially displacing the press jacket 1 from the pressure plate 2.
- the entire press unit shown in FIG. 1 is rotated about the central axis.
- the press piston 6 is advanced under pressure.
- Loosening process - The plunger 6 is withdrawn while rotating the entire pressing unit shown in FIG. 1, the remaining material to be pressed being loosened and torn open.
- the pressing and loosening process steps are repeated several times as pressing cycles per batch of pressed material until a desired final pressing state is reached.
- Liquid quantities Ql, Q2 and Q3 per stroke of the plunger 6 for three successive press cycles begins after the end of the previous outflow with the piston return stroke Rl to R3 marked on the time axis t, with tearing and loosening of the pressed material 7, followed by a piston advance VI to V3 with pressing of the liquid quantities Ql to Q3.
- the begins in FIG. 2 in each press cycle Liquid quantity Ql to Q3 with the value zero, although for the whole Pre ⁇ vorgar.g these quantities Ql to Q3 have to be added.
- a significant improvement in the selection of the suitable limit pressure for a press stroke is achieved here if, according to the invention, a point in time is determined from the time course of the flow behavior Q of the liquid phase at which the further pressure increase is limited to a constant value.
- An example of execution Such a method is explained with reference to FIG. 4.
- the outflow start of the liquid phase represented by curve Q at time t3 serves as the control variable here.
- the pressing pressure is limited to the value P3 reached here and kept constant, as the solid curve P shows.
- at least a small outflow ⁇ Q has to be measured in order to identify the outflow start t3.
- the time t5 also shows the time profile of the pressing pressure P and the amount of liquid Q pressed for a single pressing cycle with a pressing stroke.
- the times t1, t2, t3, t4 have the same meaning as in FIGS. 3 and 4.
- This method aims at an optimal combination of yield and performance with a low wet matter content. Compared to the procedure according to 4 there is a faster increase in the pressures P3.1.
- FIG. 6 illustrates the processes in a method according to the invention, in which the further pressure rise ends at a time t ⁇ and to a value
- P3.1 is limited as soon as the mean discharge capacity Q / t ⁇ Lm of the liquid quantity Q reaches a maximum value.
- the course of Lm is shown in FIG. 6 by an interrupted curve.
- the time t ⁇ of the maximum value of Lm must be measured from the beginning of the return stroke, i.e. from the zero point.
- the value of Q at time t ⁇ is designated Q3.1, so the maximum value of Lm at time t ⁇ is Q3.1 / t6. 6 can therefore be determined graphically as the time value of the contact point of the tangent T from the zero point to the curve Q.
- the designations illustrated in FIG. 7 result in the maximum value from Bm to Q3.1 / (t7) 2 . Therefore, t7 in FIG. 7 can be determined graphically as the time value of the point of contact of the Tangent T L from the zero point to the curve Lm of the mean discharge line Q / t.
- the method according to FIG. 7 leads to an optimal press result with regard to yield and performance, since above all the average juice acceleration is characteristic of a rapid, gentle drainage of the juice from the capillaries in the fruit material.
- FIG. 9 shows a diagram of a plant for carrying out one of the methods according to the invention for control or
- Hydraulic oil measured using an oil counter 20.
- the pressing pressure P exerted on the pressing material 7 by the pressing piston 6 is measured by means of a pressure sensor 21 for the hydraulic oil in the hydraulic cylinder 12.
- the pressing processes are controlled by a hydraulic system 22 of a known type by means of valves, pumps and oil pan contained therein together with a pressure control valve 23.
- the output signals from oil counter 20 and pressure sensor 21 are A process controller 24 together with a pressure controller are fed via lines represented by broken lines. In the process controller 24, the required signal processing and time determinations described for FIGS. 4 to 8 take place.
- the control commands for the control or regulation of the press pressure for the hydraulic cylinder 12 according to the invention are also generated here and transmitted to the hydraulic system 22.
- An electric control 25, which controls the hydraulics 22, is provided for the operation of the press, the start of the pressing processes and further automatic process sequences.
- the method according to the invention enables optimum pressure limitations in a press from press stroke to press stroke, adapted to the separation behavior of the pressed material, depending on the objective. Apart from the selected control or regulation procedure, no setpoint specifications are required. Disruptive setpoints or experience values can be avoided and product data is not required. In a process of self-optimization, the press leads to the press pressures and times at which the pressure increase has to be limited.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Control Of Presses (AREA)
- Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
- Filtration Of Liquid (AREA)
- Centrifugal Separators (AREA)
- Sampling And Sample Adjustment (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Press Drives And Press Lines (AREA)
Abstract
Description
Claims
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH491/94 | 1994-02-18 | ||
CH4919/44 | 1994-02-18 | ||
CH00491/94A CH689140A5 (de) | 1994-02-18 | 1994-02-18 | Verfahren zur Steuerung oder Regelung des Pressdruckes einer Presse zur Fest-Fluessigtrennung. |
PCT/CH1995/000033 WO1995022453A1 (de) | 1994-02-18 | 1995-02-15 | Verfahren zur steuerung oder regelung des pressdruckes einer presse zur fest-/flüssigtrennung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0696961A1 true EP0696961A1 (de) | 1996-02-21 |
EP0696961B1 EP0696961B1 (de) | 1998-08-05 |
Family
ID=4188230
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95907538A Expired - Lifetime EP0696961B1 (de) | 1994-02-18 | 1995-02-15 | Verfahren zur steuerung oder regelung des pressdruckes einer presse zur fest-/flüssigtrennung |
Country Status (23)
Country | Link |
---|---|
US (1) | US5613434A (de) |
EP (1) | EP0696961B1 (de) |
JP (1) | JPH08509171A (de) |
CN (1) | CN1061600C (de) |
AT (1) | ATE169268T1 (de) |
AU (1) | AU680339B2 (de) |
BR (1) | BR9505845A (de) |
CA (1) | CA2160889A1 (de) |
CH (1) | CH689140A5 (de) |
CZ (1) | CZ287566B6 (de) |
DE (1) | DE59503057D1 (de) |
ES (1) | ES2120726T3 (de) |
HR (1) | HRP950072A2 (de) |
HU (1) | HU218995B (de) |
MD (1) | MD1488B2 (de) |
NZ (1) | NZ279189A (de) |
PL (1) | PL175381B1 (de) |
RU (1) | RU2125937C1 (de) |
SK (1) | SK280435B6 (de) |
TR (1) | TR28742A (de) |
WO (1) | WO1995022453A1 (de) |
YU (1) | YU7795A (de) |
ZA (1) | ZA951317B (de) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5747088A (en) * | 1996-07-03 | 1998-05-05 | Fletcher; Leroy W. | Method of producing fruit juices and an edible infused solid fruit product |
FR2769473B1 (fr) * | 1997-10-10 | 1999-12-03 | Vaslin Bucher | Procede de gestion de l'egouttage et du pressurage, notamment pour un pressoir a cuve rotative |
US6745679B2 (en) * | 2001-07-03 | 2004-06-08 | Ntk Corporation | Grinding sludge compacting machine |
PL1744872T3 (pl) * | 2004-05-10 | 2009-12-31 | Bucher Guyer Ag | Sposób eksploatacji prasy filtracyjnej z tłokiem prasującym |
ES1058441U (es) * | 2004-09-06 | 2004-12-16 | Maquinas Y Herramientas La Rioja, S.L. | Prensa vertical de frutas, uvas y sus derivados, del tipo cubillo-neumatica con membrana. |
US10654235B2 (en) | 2012-06-13 | 2020-05-19 | Iogen Energy Corporation | Method for removing liquid from a slurry |
EP2993996B1 (de) * | 2013-05-10 | 2018-06-06 | Juicero, Inc. | Entsaftungspatrone |
EP3154773A4 (de) | 2014-06-11 | 2018-07-25 | Dale Wettlaufer | Vorrichtung und verfahren für eine saftpresse |
US11344052B2 (en) | 2014-06-11 | 2022-05-31 | Goodnature Products, Inc. | Partial or whole food hopper, grinder and cold press counter-top juicing machine, system and method |
CN105599334B (zh) * | 2016-02-04 | 2017-11-14 | 王晓东 | 气动式真空压榨装置 |
US10543652B2 (en) | 2016-03-03 | 2020-01-28 | Fresh Press LLC | Press |
CN106683863A (zh) * | 2017-03-17 | 2017-05-17 | 保定天威保变电气股份有限公司 | 一种变压器液袋压装的确定方法 |
WO2019108979A1 (en) | 2017-11-30 | 2019-06-06 | Dale Wettlaufer | Partial or whole food hopper, grinder and cold press counter-top juicing machine, system and method |
WO2020242897A1 (en) | 2019-05-24 | 2020-12-03 | Goodnature Products, Inc. | Juicing devices with a removable grinder assembly |
USD918656S1 (en) | 2019-09-12 | 2021-05-11 | Goodnature Products, Inc. | Pusher |
USD914465S1 (en) | 2019-09-12 | 2021-03-30 | Goodnature Products, Inc. | Juicing device |
USD914464S1 (en) | 2019-09-12 | 2021-03-30 | Goodnature Products, Inc. | Press box |
USD915156S1 (en) | 2020-09-15 | 2021-04-06 | Goodnature Products, Inc. | Press box |
USD916565S1 (en) | 2020-09-15 | 2021-04-20 | Goodnature Products, Inc. | Juicing device |
CN115597321B (zh) * | 2022-09-29 | 2024-03-08 | 靖江市津津食品有限公司 | 一种肉制品干燥装置及方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2057300A1 (de) * | 1970-11-21 | 1972-05-31 | Karl Moertl | Weinerntekombinationsgeraet mit automatischer Steuerung des Pressvorganges |
FR2253468A1 (en) * | 1973-11-28 | 1975-07-04 | Fillols Marcel | Hydraulic press to extract juice - esp. from grapes for winemaking, increases yield and reduces power consumption |
SU531765A1 (ru) * | 1974-12-23 | 1976-10-15 | Всесоюзный Проектно-Конструкторский И Научно-Исследовательский Институт Автоматизации Пищевой Промышленности "Пищепромавтоматика" | Способ управлени процессом прессовани |
DE2848446A1 (de) * | 1977-12-15 | 1979-06-21 | Bucher Guyer Ag Masch | Vorrichtung zum entsaften von landwirtschaftlichen produkten, insbesondere von fruechten |
JPS5588999A (en) * | 1978-12-27 | 1980-07-05 | Toshiba Corp | Operating method of pressurizing type sludge dehydrating machine |
FR2597629B2 (fr) * | 1985-11-14 | 1988-08-12 | Champagne Station Oenotechniqu | Procede et dispositif d'automatisation d'un pressoir |
FR2590046B1 (fr) * | 1985-11-14 | 1988-01-29 | Champagne Station Oenotechniqu | Procede et dispositif d'automatisation d'un pressoir |
US5231922A (en) * | 1987-03-05 | 1993-08-03 | Bucher-Guyer Ag Maschinenfabrik | Process for control of extraction of juice from organic products |
CH674632A5 (de) * | 1987-03-05 | 1990-06-29 | Bucher Guyer Ag Masch | |
SE465656B (sv) * | 1990-02-22 | 1991-10-14 | Sala International Ab | Foerfarande foer avvattning av partikelsamlingar |
FR2669266B1 (fr) * | 1990-11-16 | 1995-12-01 | Chalonnaises Const Mec Met | Procede de pressurage et dispositif pour sa mise en óoeuvre. |
-
1994
- 1994-02-18 CH CH00491/94A patent/CH689140A5/de not_active IP Right Cessation
-
1995
- 1995-02-13 YU YU7795A patent/YU7795A/sh unknown
- 1995-02-15 RU RU95119582/02A patent/RU2125937C1/ru not_active IP Right Cessation
- 1995-02-15 CZ CZ19952704A patent/CZ287566B6/cs unknown
- 1995-02-15 ES ES95907538T patent/ES2120726T3/es not_active Expired - Lifetime
- 1995-02-15 AU AU15737/95A patent/AU680339B2/en not_active Ceased
- 1995-02-15 PL PL95310772A patent/PL175381B1/pl not_active IP Right Cessation
- 1995-02-15 JP JP7521492A patent/JPH08509171A/ja not_active Ceased
- 1995-02-15 CN CN95190102A patent/CN1061600C/zh not_active Expired - Fee Related
- 1995-02-15 US US08/535,088 patent/US5613434A/en not_active Expired - Fee Related
- 1995-02-15 MD MD95-0412A patent/MD1488B2/ro unknown
- 1995-02-15 AT AT95907538T patent/ATE169268T1/de not_active IP Right Cessation
- 1995-02-15 BR BR9505845A patent/BR9505845A/pt not_active IP Right Cessation
- 1995-02-15 WO PCT/CH1995/000033 patent/WO1995022453A1/de active IP Right Grant
- 1995-02-15 CA CA002160889A patent/CA2160889A1/en not_active Abandoned
- 1995-02-15 NZ NZ279189A patent/NZ279189A/xx unknown
- 1995-02-15 HR HR00491/94-3A patent/HRP950072A2/hr not_active Application Discontinuation
- 1995-02-15 HU HU9503000A patent/HU218995B/hu not_active IP Right Cessation
- 1995-02-15 DE DE59503057T patent/DE59503057D1/de not_active Expired - Fee Related
- 1995-02-15 EP EP95907538A patent/EP0696961B1/de not_active Expired - Lifetime
- 1995-02-15 SK SK1286-95A patent/SK280435B6/sk unknown
- 1995-02-17 ZA ZA951317A patent/ZA951317B/xx unknown
- 1995-02-17 TR TR00159/95A patent/TR28742A/xx unknown
Non-Patent Citations (1)
Title |
---|
See references of WO9522453A1 * |
Also Published As
Publication number | Publication date |
---|---|
JPH08509171A (ja) | 1996-10-01 |
MD1488B2 (ro) | 2000-06-30 |
AU1573795A (en) | 1995-09-04 |
CZ270495A3 (en) | 1996-06-12 |
PL310772A1 (en) | 1996-01-08 |
NZ279189A (en) | 1997-08-22 |
ZA951317B (en) | 1995-10-23 |
PL175381B1 (pl) | 1998-12-31 |
ATE169268T1 (de) | 1998-08-15 |
SK280435B6 (sk) | 2000-02-14 |
ES2120726T3 (es) | 1998-11-01 |
BR9505845A (pt) | 1996-02-13 |
US5613434A (en) | 1997-03-25 |
MD950412A (en) | 1999-10-31 |
HRP950072A2 (en) | 1996-12-31 |
SK128695A3 (en) | 1996-06-05 |
DE59503057D1 (de) | 1998-09-10 |
TR28742A (tr) | 1997-03-12 |
HU218995B (hu) | 2001-01-29 |
CH689140A5 (de) | 1998-10-30 |
AU680339B2 (en) | 1997-07-24 |
HU9503000D0 (en) | 1996-01-29 |
CA2160889A1 (en) | 1995-08-24 |
HUT72536A (en) | 1996-05-28 |
RU2125937C1 (ru) | 1999-02-10 |
YU7795A (sh) | 1997-09-30 |
CN1123534A (zh) | 1996-05-29 |
WO1995022453A1 (de) | 1995-08-24 |
EP0696961B1 (de) | 1998-08-05 |
CZ287566B6 (en) | 2000-12-13 |
CN1061600C (zh) | 2001-02-07 |
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