EP0304444B1 - Verfahren zur steuerung der entsaftung organischer produkte - Google Patents

Verfahren zur steuerung der entsaftung organischer produkte Download PDF

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Publication number
EP0304444B1
EP0304444B1 EP88901780A EP88901780A EP0304444B1 EP 0304444 B1 EP0304444 B1 EP 0304444B1 EP 88901780 A EP88901780 A EP 88901780A EP 88901780 A EP88901780 A EP 88901780A EP 0304444 B1 EP0304444 B1 EP 0304444B1
Authority
EP
European Patent Office
Prior art keywords
pressing
cycle
juice
press
stroke
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
EP88901780A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0304444A1 (de
Inventor
Eduard Hartmann
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.)
Bucher Guyer AG
Original Assignee
Bucher Guyer AG
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 Bucher Guyer AG filed Critical Bucher Guyer AG
Priority to AT88901780T priority Critical patent/ATE68408T1/de
Publication of EP0304444A1 publication Critical patent/EP0304444A1/de
Application granted granted Critical
Publication of EP0304444B1 publication Critical patent/EP0304444B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B30B9/04—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 the juicing of organic products according to the preamble of claim 1.
  • the pressing member being predominantly designed as a piston or flexible membrane.
  • the entire pressing process takes place in several pressing cycles, which are carried out in subsequent intervals.
  • the pressing member is first pressed persistently against the mash occurring in the pressing room and then pulled back into a rest position.
  • the mash of fruit, grapes or the like is loosened for example by rotating the press container for a certain time.
  • JP-A-5'588'999 a process for dewatering sewage sludge is known, with which a shorter pressing time and lower process costs are to be achieved by determining a filtered amount of liquid when it changes in a certain time in which the amount of liquid reduced, a control signal is emitted, which initiates a next press cycle.
  • This procedure allows a drainage process to be carried out more efficiently, but not optimally adapted to the different circumstances.
  • the pressing cycle has lasted since the pressing stroke of the previous pressing cycle was interrupted and includes the return stroke of the pressing member as well as any loosening phase and the pressing stroke of this pressing cycle.
  • the application of the method according to the invention affects the first press cycle after the press has been filled, in that it starts the procedural procedure immediately upon reaching the maximum average juice output at the end of this press stroke.
  • the duration of a pressing cycle depends on the maximum average juice output of two subsequent pressing cycles, the average juice output corresponding to the amount of juice obtained in the cycle time used for this as an average value.
  • the start of the next press cycle takes place after the end of the press stroke by initiating the return stroke of the press member.
  • the maximum average juice output LQ of a pressing cycle is calculated from the amount of juice Q obtained per unit of time during a certain time, which increases more at the beginning of the pressing stroke and then reaches the maximum value of the juice output due to the decreasing pressability of the pressed material. At this critical point, optimal economy is achieved with every single press cycle.
  • This general definition takes into account the subsequent press cycle, the maximum average juice output of which is known to be below that of the previous cycle, and reduces the juice output difference of two press cycles in favor of the economy of the process.
  • a further benefit can be achieved if the press stroke of a press cycle does not match the expected maximum average juice output LQ (k) of the the next pressing cycle is ended, whereby the gentle mash treatment is taken into account.
  • Fig. 1 provides a graphic representation of the sequence of the method for controlling the juicing of organic products, primarily fruit, fruits, grapes or the like.
  • Agricultural products by means of a press using a quantity (Q) - / time (T) diagram.
  • T time
  • the press organ moves from the rest position against the mash and remains in the press position until the maximum average juice output LQ from this press cycle has been reached.
  • the juice yield is initially more pronounced and later flattens, the amount of juice Q increasing steadily, while on the other hand the average juice output, ie the average amount of juice reached up to the assumed point in time, decreases after reaching its maximum value.
  • the curve of the current juice output Q increases steeply at the beginning and, after reaching the maximum output, falls with almost the same slope and is asymptotic.
  • Below the vertex of the Q-curve is the change point on the middle juice performance curve, after which the increasing increasing juice performance merges into a section that is flatter towards the vertex and then drops again.
  • the vertex is at the same time the interface of the average juice output LQ and the current juice output Q, which is determined using a flow meter and computer. From this point on, the pressing process should be ended and the next pressing cycle initiated. This begins with the withdrawal of the pressing member and is shown in FIG. 1 within the time interval T.
  • the loosening of the mash for example by rotating the press container, can already start during the withdrawal of the pressing member.
  • the withdrawal of the pressing member is indicated in FIG. 1 by the characters T and the loosening by T.
  • the duration of the individual press cycles depends on the process sequence, it is variable. The current juice output is reduced with increasing pressing cycles.
  • FIG. 2 shows the process sequence according to the invention with the start of the pressing cycle being delayed compared to the procedure of FIG. 1, i.e. the return stroke of the pressing member takes place after the maximum average juice output has been reached. This measure is based on the fact that the juicing performance of the pressing cycles is reduced in the course of the pressing process.
  • the average juice output can be brought to a standstill or a return stroke movement initiated after the maximum value achieved, and this procedure must be based on the probability of empirical values occurring. It should be noted that the time delay K does not fall below the maximum average juice output value to be expected from the next pressing cycle. Alternatively, the pressing stroke of a pressing cycle can be ended when the instantaneous power Q corresponds to the expected maximum average juice output of the next pressing cycle.
  • a press of the known type is used as the device for carrying out the method according to the invention, to whose juice outlet arrangement a flow meter is connected as a transmitter of a processor, which controls the drive elements of the press in a manner adapted to the prevailing conditions.
  • a collecting trough 3 or the like which can be connected to the outlet arrangement 2 of the press 9, is suitable as a quantity meter, which is provided with a wall 4 designed as an overflow.
  • a measuring line 5 opening from below into the collecting trough 3 is provided with a pressure measuring device 6 as a measuring device measures the level changes occurring during the individual pressing cycles and passes them on to a processor 7.
  • a float, ultrasound or a pressure cell on the bottom of the collecting trough 3 could also be used to measure the level changes in the collecting trough 3.
  • a processor 7, 8 is exerted a controlling influence on the drive elements of the press 9.
  • the collecting trough 3 is emptied via a separate line 10, for which purpose a slide valve which can be controlled by the processor 7 or by hand is provided.
  • the collecting trough 3 itself is designed with a bottom part 11 set back upwards, so that the juice can flow into the area of the measuring line 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Non-Alcoholic Beverages (AREA)
  • General Preparation And Processing Of Foods (AREA)
  • Indole Compounds (AREA)
EP88901780A 1987-03-05 1988-02-29 Verfahren zur steuerung der entsaftung organischer produkte Expired - Lifetime EP0304444B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88901780T ATE68408T1 (de) 1987-03-05 1988-02-29 Verfahren zur steuerung der entsaftung organischer produkte.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH823/87A CH674632A5 (enrdf_load_stackoverflow) 1987-03-05 1987-03-05
CH823/87 1987-03-05

Publications (2)

Publication Number Publication Date
EP0304444A1 EP0304444A1 (de) 1989-03-01
EP0304444B1 true EP0304444B1 (de) 1991-10-16

Family

ID=4196029

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88901780A Expired - Lifetime EP0304444B1 (de) 1987-03-05 1988-02-29 Verfahren zur steuerung der entsaftung organischer produkte

Country Status (8)

Country Link
EP (1) EP0304444B1 (enrdf_load_stackoverflow)
CN (1) CN1018990B (enrdf_load_stackoverflow)
AT (1) ATE68408T1 (enrdf_load_stackoverflow)
CH (1) CH674632A5 (enrdf_load_stackoverflow)
DE (1) DE3865588D1 (enrdf_load_stackoverflow)
PL (1) PL271007A1 (enrdf_load_stackoverflow)
RU (1) RU2072784C1 (enrdf_load_stackoverflow)
WO (1) WO1988006518A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD1488B2 (ro) * 1994-02-18 2000-06-30 Бучер-Гуйер Аг Metodă de comandă sau reglare a presiunii presei pentru separarea în faze solidă şi lichidă

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2669266B1 (fr) * 1990-11-16 1995-12-01 Chalonnaises Const Mec Met Procede de pressurage et dispositif pour sa mise en óoeuvre.
CH689381A5 (de) * 1994-03-30 1999-03-31 Bucher Guyer Ag Masch Verfahren zur Bestimmung und Verwendung der Fuellmengen von Pressgut bei der Fest/Fluessig-Trennung mit einer Filterpresse.
US20240138464A1 (en) * 2022-11-01 2024-05-02 G3 Enterprises, Inc. System and method for optimizing juice press cut production

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2848446A1 (de) * 1977-12-15 1979-06-21 Bucher Guyer Ag Masch Vorrichtung zum entsaften von landwirtschaftlichen produkten, insbesondere von fruechten
FR2590046B1 (fr) * 1985-11-14 1988-01-29 Champagne Station Oenotechniqu Procede et dispositif d'automatisation d'un pressoir

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Patent Abstracts of Japan, Band 4, Nr 128 (M-31)(610), 9.September 1980, & JP,A, 5586697 ( TOKYO SHIBAURA DENKI K.K. ) 30. Juni 1980 *
Patent Abstracts of Japan, Band 4, Nr 132 (M-32)(614), 17.September 1980, & JP,A, 5588999 ( TOKYO SHIBAURA DENKI K.K. )5. Juli 1980 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD1488B2 (ro) * 1994-02-18 2000-06-30 Бучер-Гуйер Аг Metodă de comandă sau reglare a presiunii presei pentru separarea în faze solidă şi lichidă

Also Published As

Publication number Publication date
PL271007A1 (en) 1988-12-08
EP0304444A1 (de) 1989-03-01
DE3865588D1 (de) 1991-11-21
CN1018990B (zh) 1992-11-11
WO1988006518A1 (en) 1988-09-07
ATE68408T1 (de) 1991-11-15
CH674632A5 (enrdf_load_stackoverflow) 1990-06-29
RU2072784C1 (ru) 1997-02-10
CN88101203A (zh) 1988-10-05

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