WO2006133665A1 - Dispositif d'extraction de liquides par pression - Google Patents

Dispositif d'extraction de liquides par pression Download PDF

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Publication number
WO2006133665A1
WO2006133665A1 PCT/DE2006/000772 DE2006000772W WO2006133665A1 WO 2006133665 A1 WO2006133665 A1 WO 2006133665A1 DE 2006000772 W DE2006000772 W DE 2006000772W WO 2006133665 A1 WO2006133665 A1 WO 2006133665A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressing
oil
carried out
pressing operation
seed
Prior art date
Application number
PCT/DE2006/000772
Other languages
German (de)
English (en)
Inventor
Jens Schulz
Günther Suhr
Original Assignee
Harburg-Freudenberger Maschinenbau Gmbh
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 Harburg-Freudenberger Maschinenbau Gmbh filed Critical Harburg-Freudenberger Maschinenbau Gmbh
Priority to DE112006002176T priority Critical patent/DE112006002176A5/de
Publication of WO2006133665A1 publication Critical patent/WO2006133665A1/fr

Links

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
    • 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
    • B30B9/12—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 pressing worms or screws co-operating with a permeable casing
    • B30B9/16—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 pressing worms or screws co-operating with a permeable casing operating with two or more screws or worms
    • B30B9/163—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 pressing worms or screws co-operating with a permeable casing operating with two or more screws or worms working in different chambers
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
    • C11B1/00—Production of fats or fatty oils from raw materials
    • C11B1/06—Production of fats or fatty oils from raw materials by pressing

Definitions

  • the invention relates to a method for pressing off liquids, in which a raw material used as starting material is successively subjected to a first pressing operation and then a second pressing operation.
  • the invention further relates to a device for pressing off liquids, which has in a material transport direction arranged one behind the other first and second pressing devices.
  • Such methods and devices are used, for example, to recover oils from seeds to be processed.
  • a two-stage pressing process is widely used in which the seed is first fed to a pre-pressing and then a main pressing after a preparation. According to this prior art remains after the removal of the pressed material from the second Preßcut _ p -
  • Residual oil content of about seven to 7.5 percent by weight. Even this relatively high residual oil content can only be achieved by working with very high pressures of up to 600 bar. The high compression pressures make mechanically extremely stable and thus expensive presses required, the high residual oil content is to be regarded as disadvantageous.
  • the object of the present invention is to improve a method of the aforementioned type such that a reduction of the residual liquid content is achieved.
  • This object is achieved in that after the second pressing at least a third pressing operation is performed.
  • Another object of the present invention is to construct a device of the aforementioned type such that reduced pressing pressures are supported with simultaneously increased material yield.
  • This object is achieved in that in the material transport direction behind the second pressing means at least a third pressing device is arranged.
  • the multi-stage implementation of the pressing process it is possible to use a lower specific energy in each press. As a result, for example, in a three-stage pressing operation, not significantly more energy is required than when performing a two-stage pressing operation, but the overall pressing result can be significantly improved.
  • the at least three-stage Pressing it is possible, for example, to increase the oil yield compared to a single-stage or a two-stage pressing process up to 70%.
  • the seed it is particularly possible to achieve a residual oil content of less than two percent by weight.
  • the actual pressing results vary greatly depending on the number of pressing stages used, the concrete used as raw material seed and the preparation of the oily base material.
  • the implementation of the pressing process in at least three successive pressing steps also makes it possible to omit a coming in two-stage pressing operations or in a single-stage pressing thermal treatment of the seed or at least perform only a reduced thermal processing. As a result, a significant energy requirement of the pressing process can be avoided.
  • at least comparable pressing results a three-stage pressing without intermediate thermal processing leads to a comparable press result as a two-stage pressing with intermediate thermal processing, the three-stage mechanical pressing only can be performed in addition to a significantly reduced energy consumption of the overall process.
  • the method according to the invention as well as the device according to the invention can also be used in other applications for squeezing off liquids.
  • the utilization of animal carcasses is mentioned here, in which a pressing off of various contained moisture and body fluids takes place with the use of wire presses.
  • a further improvement of the pressing result can be achieved by carrying out a preparation of the base material before the first pressing operation.
  • a particularly effective treatment can be achieved by performing a rolling and / or corrugating process during the preparation of the base material.
  • thermal conditioning be carried out between at least two pressing operations.
  • An optimization of the individual pressing operations is supported by that at least two pressing operations are carried out spatially separated from each other with an intermediate transport process.
  • Both good pressing results and low mechanical loads on the pressing device with low energy consumption can be achieved by carrying out the pressing operation at a maximum pressure of about 300 bar.
  • the pressed material is heated before at least one pressing operation.
  • the pressing process can be further improved by carrying out drying of the pressed material before at least one pressing operation.
  • Fig. 4 is a process view of a multi-stage pressing process without thermal intermediate treatment
  • Fig. 5 is a simplified system diagram for carrying out a multi-stage pressing operation with intermediate transport operations.
  • the device for obtaining oil consists of a treatment device (1) to which an oil-containing base material is supplied.
  • a mechanical loading of the raw material for example via rolling mills or flaking mills.
  • the base material is fed to a conditioning station (2), in which a thermal treatment takes place.
  • a finishing press (3) with at least one pressing step is arranged.
  • the finishing press (3) is provided with an oil take-off (4) and a pressed material discharge (5).
  • a comparable structure is also provided in presses for the recovery of carcasses.
  • Fig. 2 shows a multi-stage pressing in a more detailed representation.
  • a prepressing (6) is provided here, followed by a second conditioning station (7). Only after the second conditioning station (7), the finishing press (13) is positioned. Both in the area of pre-pressing (6) and in the area of finished pressing (3), oil is removed.
  • the finished pressing (2) can also be realized in several stages according to the embodiment in FIG.
  • Fig. 3 shows an embodiment for the course of an n-stage pressing operation, each with interposed thermal treatment.
  • conditioning stations (2) and pressing devices (8) arranged here.
  • a processing device (1) can be connected upstream.
  • conditioning stations (2) for thermal treatment of the molding material are arranged between each of the individual pressing devices (8).
  • it is also possible to reduce the number of conditioning stations (2) such that conditioning stations (2) are used only between some of the pressing devices (8).
  • Fig. 4 shows a comparison with FIG 3 modified embodiment without the use of conditioning stations (2).
  • an optional processing device (1) can be used.
  • a substantially purely mechanical preparation and pressing of the base material thus takes place. It can thereby perform the pressing process with a very low power consumption.
  • Fig. 5 shows an example of a plant realization of a multi-stage pressing process.
  • first conveying device (10) for the pressed material, this passes into the region of a first conditioning station (2), which forwards the pressed material to a conveying element (11) after conditioning has taken place.
  • the conveying element (11) preferably transports the material to be pressed upwards in a vertical direction.
  • the pressed material passes into the region of a first pressing device (8), which is preferably designed as a screw press.
  • a first pressing device (8) escaping squeezed liquid, such as oil, enters the region of a first discharge device (12).
  • the emerging pressed material passes through a conveying device (13), which is designed, for example, as Schilfferaustrag, in the region of a second conditioning station (2).
  • the conditioning stations (2) can each be designed for thermal conditioning.
  • the plant for oil extraction from seeds shown by way of example in FIG. 5, can also be used for animal body utilization in a modified embodiment.
  • the following process description serves as a basic illustration of the process of oil extraction by means of finished pressing. Number and type of listed items may vary. Chain and screw conveyors are provided for transporting the material in order to minimize deposits in the conveyor elements. Furthermore, risks such as spontaneous combustion and contamination with molds of the material are reduced. For the Saater stiirmung and drying conditioners are provided. This conditioner type allows easy adjustment for uniform seed transport, vapor pressure, heat transfer, and adjusting the moisture content of the seed. The vapor pressure is automatically controlled and adjusted by control valves. There is a complete return of the separated from the oil solids (coarse rub and filter cake) provided for a new oil production, so that losses only by evaporated seed moisture and separated in the seed cleaning accompanying substances arise.
  • the seed to be processed is placed in a working silo.
  • the silo is equipped with limit switches which avoid overfilling and, at low levels, automatically switch on the reed feed.
  • the controlled, even extraction of the seed takes place by means of a screw conveyor.
  • the speed of the conveyor is changed by a frequency converter and thus the performance of the system is set.
  • the control of the seed throughput is done with a belt scale.
  • the integrated magnetic separator removes iron particles from the seed stream.
  • the pre-cleaned seed is conveyed by the chain conveyor for further processing.
  • the seed can be cold (at least 10 0 C) are processed with a Saatfeuchte ⁇ 7 weight percent.
  • the seeds are fed past the conditioners, via the conveying path, directly to the pre-press.
  • the press cake from the pre-press is conditioned during cold processing for further pressing in the re-pressing to ensure maximum oil yield. During cold processing of the seed, this conditioning takes place in the apparatus.
  • the warm processing is always required at Saatfeuchten> 7 percent and Saattemperaturen ⁇ 10 0 C.
  • the heating and drying of the seed takes place continuously in the conditioning apparatus. By heating and drying, the seed is adjusted for the following pressing and mechanical treatment in the pre-press. By heating, among other things, the viscosity of the oil is reduced and increased the oil yield in the first stage.
  • the conditioning of the press cake from the pre-press takes place in the warm seed processing exclusively in the conditioner.
  • the pre-press there is a stub shaft with individually mounted, interchangeable and pressed together screw parts, a vertically divided hinged wire and a ⁇ laustragsvorraum. Due to the mounted on the worm shaft resistors and the conveying direction reduced delivery volume, the pressed material is compressed and the oil over the enveloping, slotted coat (strainer) directed to the outside. The solids leave the press as press cake at the end of the shaft.
  • the seed After pre-pressing and comminution in the first pressing stage, the seed is subjected to a further thermal treatment in a conditioner.
  • the cake In these apparatuses, the cake is conditioned and dried in order to set the most favorable parameters (about 120 ° C. and 2.5% by weight of moisture) for a high oil yield for the subsequent mechanical oil extraction in the afterpresses.
  • the mechanical oil extraction in the second Preßcut takes place in the screw press.
  • the material to be compacted is compressed and the released oil is discharged to the outside via the enveloping, slotted casing (strainer).
  • the deoiled solid (press cake, Schilfer) is cooled by the chain conveyor and the screw conveyor via a cake cooler to storage temperature.
  • water is sprayed through the humidifying unit onto the hot press cake after the final presses.
  • the cake cooler air is drawn in countercurrent, which heats up on the warm cake and at the same time absorbs moisture.
  • the moisture evaporating from the press cake removes it Product the heat.
  • the press cake is placed at a temperature about 5 to 10 0 C above ambient temperature to the presscake storage.
  • the cooler is realized complete with fan, dust separator cyclone (alternatively with exhaust filter) and lock.
  • the squeezed oil is loaded with seed particles (turbid). It is conveyed by a conveyor screw mounted in the bottom of the press frame to a central outlet. From there it passes through a chain conveyor to a Trubabscheider. The Trubabscheider works for rough pre-cleaning. By this procedure, the continuous recycling of Trubstoffe takes place in the oil extraction process.
  • the largest portion of the oil to be obtained is obtained as a high quality vegetable oil of very light color with a low content of phosphatides.
  • the Nachpreßöl is much darker and has a significantly higher proportion of phosphatides.
  • two oil purification systems are required.
  • the cold-pressed oil is pre-cleaned in the ⁇ ltrubabscheider and passes through an oil drying in the subtank. An agitator prevents the remaining fine solids from sedimenting out.
  • the Filterpreßpumpe conveys the oil through a filter. After completion of each filtration process, the deposited on the filter elements solid (filter cake) is blown dry by means of compressed air and collected in a collecting container below the filter and supplied from there to the process again dosed.
  • the hot pressed oil from the repressors is fed to the oil sludge separator. The amount of oil from the re-pressing is comparatively low, on a Vor conceptioner between Trubabscheider and filter is omitted.
  • the Filterpreßpumpe conveys the oil directly from the Trubabscheider on the filter.
  • the filters are designed as pressure filters in a vertical design. After completion of each FiItervorganges the deposited on the filter elements solid (filter cake) is blown dry by means of compressed air and collected in a collecting container below the filter and fed back from there to the process dosed.
  • the filters are fully automated.
  • the required pressure and instrument air for oil filtration is generated in a compressed air system.
  • the filtered oil flows into an intermediate tank and is fed to the storage tank by means of the feed pumps.
  • the condensate accumulating in the conditioner is collected in the condensate tank and returned to the customer's steam boiler with the condensate pump.
  • the cold-pressed oil is therefore prepared by drying on the oil filtration. This is still in the oil moisture removed.
  • the pre-cleaned oil from the Trubabscheider is preheated by a heat exchanger to about 90 0 C and sprayed into the oil dryer.
  • a vacuum pump generates an absolute pressure of about 80 mbar to lower the boiling point of the moisture.
  • the moisture evaporates and is condensed in the heat exchanger.
  • the liquid-gas phase is separated.
  • the liquid phase flows by gravity into a separation basin.
  • the gas phase is compressed in the vacuum pump and reaches the atmosphere as exhaust air.
  • the dried oil from the oil dryer is conveyed via an oil pump into the sedimentation tank and collected there for oil filtration.
  • the Filterpreßpumpe promotes the pre-cleaned and dried oil through a filter.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Fats And Perfumes (AREA)

Abstract

L'invention concerne un procédé et un dispositif d'extraction de liquides par pression. Un produit de base employé comme produit initial est soumis consécutivement à un premier processus de pression puis à un deuxième processus de pression. Au moins un troisième processus de pression fait suite à un deuxième processus de pression. Le procédé et le dispositif selon l'invention servent par exemple à l'extraction d'huile et à l'utilisation de corps d'animaux.
PCT/DE2006/000772 2005-06-14 2006-04-29 Dispositif d'extraction de liquides par pression WO2006133665A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112006002176T DE112006002176A5 (de) 2005-06-14 2006-04-29 Vorrichtung zum Abpressen von Flüssigkeit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510027722 DE102005027722A1 (de) 2005-06-14 2005-06-14 Vorrichtung zum Abpressen von Flüssigkeit
DE102005027722.5 2005-06-14

Publications (1)

Publication Number Publication Date
WO2006133665A1 true WO2006133665A1 (fr) 2006-12-21

Family

ID=36694315

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2006/000772 WO2006133665A1 (fr) 2005-06-14 2006-04-29 Dispositif d'extraction de liquides par pression

Country Status (2)

Country Link
DE (2) DE102005027722A1 (fr)
WO (1) WO2006133665A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007014775B4 (de) 2007-03-28 2022-05-25 Harburg-Freudenberger Maschinenbau Gmbh Verfahren und Vorrichtung zum Pressen
DE102007053109A1 (de) * 2007-11-07 2009-05-14 Harburg-Freudenberger Maschinenbau Gmbh Verfahren und Vorrichtung zur energiesparenden und umweltschonenden Verarbeitung von Ölsaaten
DE102020113622A1 (de) 2020-05-20 2021-11-25 Harburg-Freudenberger Maschinenbau Gmbh Verfahren und Vorrichtung zur Gewinnung von Öl aus Saatgut

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1080294A (en) * 1911-07-25 1913-12-02 Willis E Overton Process of extracting oil from fish.
US1164383A (en) * 1914-03-04 1915-12-14 William Mccormick Neale Process of oil extraction from seed-kernels.
US1616319A (en) * 1924-02-01 1927-02-01 Kammermann Georges Process for the treatment of oleaginous seeds or oleaginous vegetable substances for the purpose of extracting the oil contained therein
CH122422A (de) * 1926-10-13 1927-11-16 Rauschenbach A G Maschf Schneckenpresse.
GB601529A (en) * 1943-01-19 1948-05-07 Joseph Michael Van Eekeren Mustard product and process of manufacturing the same
US3076708A (en) * 1958-11-10 1963-02-05 Edwin George Inman Process for the production of protein enriched material from protein-containing materials having a relatively high water content
GB1104577A (en) * 1965-11-08 1968-02-28 Raymond Arthur Couche Process for extracting oil from palm fruit and olives
US4271754A (en) * 1977-11-19 1981-06-09 Fried. Krupp Gmbh Method of and apparatus for pressing of liquids from solid materials
US4323007A (en) * 1979-08-23 1982-04-06 Hunt Arthur J Method of extraction of juice from fruit
US4718337A (en) * 1984-07-04 1988-01-12 Pharos Inventions Ag Apparatus for the treatment of plant material
GB2238964A (en) * 1989-08-04 1991-06-19 Yamamoto Mfg Pressing oil from vegetable matter
US5985345A (en) * 1997-12-12 1999-11-16 Kalamazoo Holdings, Inc. High temperature extraction of spices and herbs

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2915538C2 (de) * 1979-04-18 1982-12-02 Fried. Krupp Gmbh, 4300 Essen Verfahren und Vorrichtung zur Ölgewinnung aus gereinigten Ölfrüchten und Ölsaaten

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1080294A (en) * 1911-07-25 1913-12-02 Willis E Overton Process of extracting oil from fish.
US1164383A (en) * 1914-03-04 1915-12-14 William Mccormick Neale Process of oil extraction from seed-kernels.
US1616319A (en) * 1924-02-01 1927-02-01 Kammermann Georges Process for the treatment of oleaginous seeds or oleaginous vegetable substances for the purpose of extracting the oil contained therein
CH122422A (de) * 1926-10-13 1927-11-16 Rauschenbach A G Maschf Schneckenpresse.
GB601529A (en) * 1943-01-19 1948-05-07 Joseph Michael Van Eekeren Mustard product and process of manufacturing the same
US3076708A (en) * 1958-11-10 1963-02-05 Edwin George Inman Process for the production of protein enriched material from protein-containing materials having a relatively high water content
GB1104577A (en) * 1965-11-08 1968-02-28 Raymond Arthur Couche Process for extracting oil from palm fruit and olives
US4271754A (en) * 1977-11-19 1981-06-09 Fried. Krupp Gmbh Method of and apparatus for pressing of liquids from solid materials
US4323007A (en) * 1979-08-23 1982-04-06 Hunt Arthur J Method of extraction of juice from fruit
US4718337A (en) * 1984-07-04 1988-01-12 Pharos Inventions Ag Apparatus for the treatment of plant material
GB2238964A (en) * 1989-08-04 1991-06-19 Yamamoto Mfg Pressing oil from vegetable matter
US5985345A (en) * 1997-12-12 1999-11-16 Kalamazoo Holdings, Inc. High temperature extraction of spices and herbs

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DIETER OSTEROTH: "Taschenbuch für Lebensmittelchemiker und -technologen 2", 1991, SPRINGER VERLAG, XP002392965 *
Y.H.HUI: "Bailey' Industrial Oil and Fat Products Vol. 4: Edible oil and Fat Products: Processing Technology", 1996, WILEY-INTERSCIENCE, XP002393998 *

Also Published As

Publication number Publication date
DE102005027722A1 (de) 2006-12-21
DE112006002176A5 (de) 2008-05-21

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