EP0413781A1 - Procede et installation d'extraction ou d'expulsion par rin age de substances contenues dans des systeme heterogenes - Google Patents

Procede et installation d'extraction ou d'expulsion par rin age de substances contenues dans des systeme heterogenes

Info

Publication number
EP0413781A1
EP0413781A1 EP90901533A EP90901533A EP0413781A1 EP 0413781 A1 EP0413781 A1 EP 0413781A1 EP 90901533 A EP90901533 A EP 90901533A EP 90901533 A EP90901533 A EP 90901533A EP 0413781 A1 EP0413781 A1 EP 0413781A1
Authority
EP
European Patent Office
Prior art keywords
liquid phase
heterogeneous system
solid phase
phase
substance
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.)
Withdrawn
Application number
EP90901533A
Other languages
German (de)
English (en)
Inventor
Zoran Dragievi
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.)
Laycock SA
Original Assignee
Laycock SA
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 Laycock SA filed Critical Laycock SA
Publication of EP0413781A1 publication Critical patent/EP0413781A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/02—Solvent extraction of solids
    • B01D11/0215—Solid material in other stationary receptacles
    • B01D11/0223—Moving bed of solid material
    • B01D11/0226—Moving bed of solid material with the general transport direction of the solids parallel to the rotation axis of the conveyor, e.g. worm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D2011/002—Counter-current extraction

Definitions

  • the present invention relates to a method for extracting or rinsing out a substance from a heterogeneous system according to the preamble of claim 1 and to a continuously operating extraction or rinsing system for carrying out the method, according to the preamble of claim 2 .
  • a device for the continuous treatment of heterogeneous systems in particular for the extraction of
  • FIG. 1 The first embodiment of an extraction or rinsing system according to the invention is shown schematically in FIG. 1.
  • a heterogeneous system which consists of a solid phase of fibrous or granular material 2, is brought into a funnel-shaped feed device 1.
  • the solvent passes through the plant in the opposite direction of the heterogeneous system, that is to say in the conveying direction of the latter seen from the end to the beginning of the plant.
  • the solvent slowly changes into a liquid phase which is increasingly loaded with the substance extracted from the heterogeneous system.
  • the very heavily loaded liquid phase leaves the system through first discharge means 16 via a discharge line 25 in order to reach a collecting trough 34.
  • the rinsing process proceeds in a similar manner.
  • the heterogeneous system 2 which is introduced into the funnel-shaped feed device 1, usually comprises a liquid phase or a liquid phase in addition to the solid phase. called carrier liquid, a rinsing liquid is introduced into the system as a so-called receiver liquid via the further feed device 3 ′′.
  • the original liquid phase or carrier liquid is replaced by the rinsing agent or receiver liquid.
  • the system according to the invention is essentially composed of three treatment stages 5, 5 ', 5''.
  • Each of the treatment stages has practically the same parts. These are therefore also denoted by the same reference numerals, corresponding parts being provided without a dash in the first treatment stage 5, with a dash in the second treatment stage 5 'and with two dashes in the third treatment stage 5''. It is therefore sufficient if the features are explained on the basis of, for example, the first treatment stage 5.
  • the heterogeneous system 2 is brought into the funnel-shaped feed device 1, via a pipe (not designated in more detail) connected to the feed device 1, the heterogeneous system reaches a horizontal screw conveyor 38 which is driven by a drive motor 39.
  • a conveyor tube 6 in which a conveyor 9 is arranged.
  • the latter comprises a screw helix 21 which is connected to a rotating shaft 22.
  • the shaft receives its orbital movement by a conveyor drive 40.
  • the heterogeneous system is conveyed by the screw 9 in the exemplary embodiment shown here in the approximately vertical conveyor tube 6 from bottom to top.
  • the inner wall of the tube 6 is preferably provided with grooves running in the longitudinal direction.
  • Three organs 30, 31, 32 for forming a compression or squeeze zone 10, 11, 12 and a decompression or expansion zone 13, 14, 15 are arranged on the shaft 22 at approximately regular intervals.
  • the organs essentially each comprise two conical frustum-shaped structures and are described in more detail below with reference to FIG. 2. Due to the one frustoconical structure, the diameter of which increases in the direction of flow of the heterogeneous system, the passage area of the latter in the delivery pipe 6 is increasingly reduced, which results in compression.
  • the second truncated cone-shaped structure has a relatively rapidly decreasing diameter in the flow direction of the heterogeneous system. The passage area for the heterogeneous system is suddenly increased, which causes the latter to decompress or expand.
  • part of the liquid phase 4 is drained off via a first laxative 16, which is arranged in the region of the compression zone 10. This part is very heavily loaded and is no longer used.
  • the fibrous or granular material of the heterogeneous system falls or sinks the liquid phase 4 flowing against it relatively slowly. A white This results in a more thorough cleaning process.
  • the cross section of the downward pipe 7 is preferably dimensioned larger than that of the delivery pipe 6.
  • a charging or metering device 41 is installed at the bottom of the downward pipe 7. This serves to control the movement processes in the sloping pipe. Viewed in the direction of flow of the heterogeneous system, the latter reaches the horizontally arranged screw conveyor 38 'of the second treatment stage 5' after the loading or dosing device 41 mentioned.
  • the first line 26 is connected to the feed device 1 via a third feed means 29, which essentially comprises a line connection nipple.
  • An overflow 44 comes into action when the feed device 1 is subjected to excessive pressure.
  • automatically controllable valves or shut-off valves are installed in the various lines mentioned.
  • the valves mentioned can be entered by the control device on the basis of measurement results and / or beforehand - 1 ⁇ -
  • the two truncated cones are directed towards each other.
  • the flow area for the solid phase in the delivery pipe 6 gradually decreases relatively slowly due to the increase in diameter of the one truncated cone. This compresses the solid phase.
  • the latter expands relatively quickly again due to the other frustoconical structure of the decompression zone.
  • the solid phase 2 and the liquid phase remaining in the delivery pipe are expanded.
  • the second feed means 20 which comprise feed holes 48 distributed over the circumference, less contaminated liquid phase 4 is fed.
  • a connection nipple could also be attached to the pipe 6 in the region of the decompression zone 14, as has been described with reference to FIG. 1, for connecting an external supply line.
  • FIG. 3 is a schematic illustration of a second embodiment of a system according to the invention. This again consists of three treatment levels 5, 5 ', 5''. It is immediately apparent that the delivery pipes 6, 6 ', 6'', in contrast to the first embodiment, are essentially horizontal are arranged. Depending on the direction of flow of the solid phase 2, at the end of each of the delivery pipes, the corresponding downward pipe 7, 7 ', 7''is connected, which leads the solid phase to the next stage or, in the case of the last treatment stage 5'', to the discharge opening 45. The solid phase 2 is fed via a feed device 1 at the beginning of the first stage 5. Essentially the same processes take place in the pipes, as has already been explained in detail with reference to FIG. 1.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Extraction Or Liquid Replacement (AREA)

Abstract

Un procédé et une installation qui fonctionne en continu servent à extraire ou à expulser par rinçage une substance contenue dans un système hétérogène qui comprend une phase solide en matières fibreuses ou granulaires au moyen d'un liquide qui forme une phase liquide de plus en plus chargée avec la substance à extraire ou à expulser pendant le déroulement du procédé. Des convoyeurs (9, 9', 9'') font avancer la phase (2) dans l'installation. La phase liquide (4, 4', 4'') traverse l'installation essentiellement en sens contraire à la phase solide. Des organes (30, 31, 32, 30', 31', 32', 30'', 31'', 32'') de compression et de décompression de la phase solide (2) sont agencés le long du trajet de la phase solide (2) à travers l'installation, qui peut se composer de plusieurs étapes de traitement (5, 5', 5'') connectées en séries. Des éléments d'évacuation d'au moins une partie de la phase liquide sont agencés dans chaque zone de compression. La phase liquide évacuée est rajoutée à la phase solide en des emplacements plus proches de l'organe d'amenée (1) de la phase solide que les éléments d'évacuation correspondants, dans le sens contraire au sens de déplacement de la phase solide.
EP90901533A 1989-03-10 1990-01-16 Procede et installation d'extraction ou d'expulsion par rin age de substances contenues dans des systeme heterogenes Withdrawn EP0413781A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
YU502/89 1989-03-10
YU50289 1989-03-10

Publications (1)

Publication Number Publication Date
EP0413781A1 true EP0413781A1 (fr) 1991-02-27

Family

ID=25550221

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90901533A Withdrawn EP0413781A1 (fr) 1989-03-10 1990-01-16 Procede et installation d'extraction ou d'expulsion par rin age de substances contenues dans des systeme heterogenes

Country Status (5)

Country Link
US (1) US5183578A (fr)
EP (1) EP0413781A1 (fr)
JP (1) JPH03504464A (fr)
CA (1) CA2028842A1 (fr)
WO (1) WO1990010484A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK292990D0 (da) 1990-12-10 1990-12-10 Phoenix Contractors As Fremgangsmaade til kontinuerlig rensning af forurenet materiale og anlaeg til udoevelse af fremgangsmaaden
NL1007588C2 (nl) 1997-11-20 1999-05-25 Inst Voor Agrotech Onderzoek Werkwijze voor het extraheren van een substantie uit een uitgangsmateriaal alsmede extractie-inrichting voor het uitvoeren van de werkwijze.
DK1218078T3 (da) * 1999-09-09 2004-05-17 Sucher & Holzer Bauplan Handel Fremgangsmåde ved indvinding af stoffer ved en snekkepresse
CN207286746U (zh) * 2017-08-31 2018-05-01 山东江天生物科技有限公司 一种高效提取装置
RU200240U1 (ru) * 2020-07-23 2020-10-13 Федеральное государственное бюджетное образовательное учреждение высшего образования "Астраханский государственный технический университет" Экстрактор

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US623892A (en) * 1899-04-25 Thomas fairley
US1604650A (en) * 1924-11-03 1926-10-26 Fred W Manning Process and apparatus for continuous counter current pressure filtration
US1604651A (en) * 1925-04-02 1926-10-26 Fred W Manning Process of and apparatus for continuous counter-current pressure filtration
US2637666A (en) * 1949-07-01 1953-05-05 Langen Eugen Extraction tower for comminuted material of vegetable or plant origin, particularly sugar beets
US2928760A (en) * 1953-12-08 1960-03-15 Christoffersen Hans Jacob Apparatus for continuous lixiviation
US2949364A (en) * 1957-01-09 1960-08-16 Curtiss Wright Corp Methods of making beverage concentrate
DE1300079B (de) * 1963-10-11 1969-07-24 Knapsack Ag Verfahren zur Gewinnung von Saft aus zuckerhaltigen Pflanzenteilen, wie Zuckerrueben und Zuckerrohr
US3523799A (en) * 1966-11-25 1970-08-11 Haas Inc John I Process and apparatus for extraction of hops with a solvent
FR2264090B1 (fr) * 1974-03-16 1979-09-28 Braunschweigische Masch Bau
BR8003788A (pt) * 1980-06-18 1981-11-10 Inst Pesquisas Tech Processo e equipamento para extracao continua por solvancia sob pressao
DE8710825U1 (de) * 1987-08-07 1987-10-22 Kresken, Karl-Heinz, 4280 Borken Vorrichtung zur Trennung von Schadstoffen aus verunreinigten Böden

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9010484A1 *

Also Published As

Publication number Publication date
CA2028842A1 (fr) 1990-09-11
WO1990010484A1 (fr) 1990-09-20
US5183578A (en) 1993-02-02
JPH03504464A (ja) 1991-10-03

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