EP2495049A1 - Ensemble d'hydrocyclones - Google Patents

Ensemble d'hydrocyclones Download PDF

Info

Publication number
EP2495049A1
EP2495049A1 EP12155982A EP12155982A EP2495049A1 EP 2495049 A1 EP2495049 A1 EP 2495049A1 EP 12155982 A EP12155982 A EP 12155982A EP 12155982 A EP12155982 A EP 12155982A EP 2495049 A1 EP2495049 A1 EP 2495049A1
Authority
EP
European Patent Office
Prior art keywords
hydrocyclone
collecting container
chamber
underflow
pressure chamber
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Withdrawn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
EP12155982A
Other languages
German (de)
English (en)
Inventor
Peter Kaniut
Georg Fritsch
Thomas Prof. Dr. Neeße
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.)
AKW Apparate und Verfahren GmbH
Original Assignee
AKW Apparate und Verfahren 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 AKW Apparate und Verfahren GmbH filed Critical AKW Apparate und Verfahren GmbH
Publication of EP2495049A1 publication Critical patent/EP2495049A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/14—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C11/00—Accessories, e.g. safety or control devices, not otherwise provided for, e.g. regulators, valves in inlet or overflow ducting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/24—Multiple arrangement thereof
    • B04C5/28—Multiple arrangement thereof for parallel flow

Definitions

  • the invention relates to a multi-hydrocyclone arrangement, consisting of a plurality of spatially adjacent small hydrocyclones, which are fed from a pressure chamber, wherein the lower reaches of the Kleinhydrocyclones are connected to a common underflow chamber and continue to lead the upper reaches of Kleinhydrocyclones to a collecting container, according to claim 1.
  • From the DE 198 49 870 C2 is a hydrocyclone arrangement with an inlet of the feed pulp, an upper course and an underflow previously known, wherein the inlet is guided by a pump in a receiving chamber.
  • the headwaters of a group of hydrocyclones are directed into a collection chamber with a free spout for the underflow.
  • the nearly equal sized hydrocyclones of the group of cyclones are arranged in close proximity to each other, wherein the headbox is designed for the amount of provided hydrocyclones together.
  • the overflow collecting chamber is designed as a pressure pot and is connected via an overflow collecting line with an adjustable control valve and an associated control device for adjusting the volume split.
  • Volume split refers to the ratio of the flow rates of the upper and lower reaches of each other.
  • measuring means are provided for detecting the mass of heavy discharge material present in the respective conical lower part, and these measuring means are connected to a control valve which acts as an actuator.
  • hydrocyclone arrangement DE 195 08 430 A1 an improvement of the deposition of the solid phase in the hydrocyclone underflow and thereby ensuring a maximum solids discharge or a maximum thickening at fluctuating feed conditions to be created. It is ensured that the entire hydrocyclone in its operation has no or a very reduced air core in it, that is completely or predominantly filled with liquid. This results in an increase in throughput. Via a ventilation valve, the division ratio of the reaching into the upper and lower reaches of flow rates can be made changeable. However, a very complex individual control is necessary with a multi-arrangement of small hydrocyclones.
  • a multi-hydrocyclone arrangement consisting of a plurality of spatially adjacent Kleinhydrozyklonen, wherein the Kleinhydrozyklone be fed from a pressure chamber.
  • the lower reaches of the Kleinhydrocyclones are connected to a common underflow chamber and it lead the upper reaches of Kleinhydrocyclones to a collection.
  • the primary supply stream is also guided into the aforementioned collecting container, wherein the feeding of the pressure chamber takes place from the collecting container.
  • At least one hydrocyclone pump is connected in the feed line. Furthermore, in the feed line a controlled bypass for the withdrawal of fine grain suspension is provided, wherein the common underflow chamber is formed closed.
  • a trigger with valve for discontinuous or quasi-continuous discharge is present at the outlet of the underflow chamber.
  • a variant according to the invention ensures that a displacement pump, in particular a diaphragm pump, is used.
  • this displacement or diaphragm pump can be assigned a pulsation damper.
  • the inventive method for operating the above outlined multi-hydrocyclone arrangement initially designed so that the Kleinhydrozyklone be charged from the pressure chamber.
  • the collecting tank for the upper reaches of the small hydrocyclones also absorbs the primary task stream.
  • About the feed line between sump and pressure chamber of the deduction of fine grain suspension takes place with a particle size into the micron range.
  • the collecting container is filled with feed suspension. This is followed by discontinuous batchwise operation until the underflow chamber receives enough coarse grain to subsequently switch to continuous operation with the desired high product yield.
  • the primary feed stream is substantially smaller than the total loop flow of the upper runs of the small hydrocyclones.
  • the primary application flow is less than 1/100 of the total cycle flow of the headwaters.
  • the multi-hydrocyclone arrangement according to the invention consists of a multiplicity of small hydrocyclones 1, which are respectively charged from a pressure chamber 2.
  • an underflow stream 5 is withdrawn discontinuously or quasi-continuously, wherein in the underflow 5, a control valve 11 is connected.
  • a collecting container 6 for the upper reaches 7 of the hydrocyclones 1 is present.
  • the collecting container 6 and the primary delivery stream 8 is supplied.
  • the collecting container 6 simultaneously serves as a food container for the hydrocyclone pump 9, which leads on the output side to the pressure chamber 2.
  • a controlled withdrawal 10 of the fine grain suspension as a bypass of the feed 11 is present.
  • the collecting container 6 When commissioning the arrangement according to the invention, the collecting container 6 is first filled with feed suspension. Then operating the arrangement in batch mode is discontinuous until sufficient coarse material has been collected in the underflow chamber 4 to then switch to the preferably continuous operation.
  • hydrocyclone pump 9 is preferably a positive displacement pump, especially a diaphragm pump with pulsation damper.
  • the hydrocyclones 1 may preferably be arranged in a circle, wherein with respect to the circle in the middle of the pressure chamber 2 can be formed with befindlichem collecting container.
  • measuring means for detecting the mass of coarse material located there may be provided and connected to the control valve 110.
  • This pilot plant consisted of a container for the feed material, a diaphragm pump with subsequent pulsation damping and the actual hydrocyclone with an underflow chamber and a return of the upper reaches in the feed tank.
  • the separation was carried out with a 25 mm hydrocyclone at an initial solids concentration of 1%.
  • the feed material used in the composition according to Fig. 2 was a bidisperses mixture with a Körnungslücke in the range 0.2 to 0.5 .mu.m, which provides practical conditions for the inventive method.
  • the feed was set at a volume of 10 L and recirculated for a period of 120 minutes in the hydrocyclone plant.

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Cyclones (AREA)
EP12155982A 2011-03-02 2012-02-17 Ensemble d'hydrocyclones Withdrawn EP2495049A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011012783 2011-03-02
DE102011103417A DE102011103417A1 (de) 2011-03-02 2011-06-06 Multihydrozyklonanordnung

Publications (1)

Publication Number Publication Date
EP2495049A1 true EP2495049A1 (fr) 2012-09-05

Family

ID=45656071

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12155982A Withdrawn EP2495049A1 (fr) 2011-03-02 2012-02-17 Ensemble d'hydrocyclones

Country Status (2)

Country Link
EP (1) EP2495049A1 (fr)
DE (1) DE102011103417A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021120914A1 (de) 2021-06-09 2022-12-15 Akw Apparate + Verfahren Gmbh Verfahren und Anordnung zur Abtrennung und Entwässerung von Feinkorn

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2023673A1 (fr) * 1968-11-20 1970-08-21 Celleco Ab
EP0160629A2 (fr) * 1984-04-26 1985-11-06 WIKDAHL, Nils Anders Lennart Procédé et dispositif pour commander l'écoulement à l'apex d'un multihydrocyclone pour suspensions de fibres
DE3539483A1 (de) * 1985-11-07 1987-05-21 Steinmueller Gmbh L & C Verfahren und anlage zur beschickung von hydrozyklonen mit einer feststoff beladenen fluessigkeit
DE19508430A1 (de) 1995-03-09 1996-09-12 Schauenburg Masch Hydrozyklon
DE19849870A1 (de) * 1998-10-29 2000-05-11 Akw Apparate Verfahren Hydrozyklonanordnung, sowie dazugehöriges Verfahren

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2023673A1 (fr) * 1968-11-20 1970-08-21 Celleco Ab
EP0160629A2 (fr) * 1984-04-26 1985-11-06 WIKDAHL, Nils Anders Lennart Procédé et dispositif pour commander l'écoulement à l'apex d'un multihydrocyclone pour suspensions de fibres
DE3539483A1 (de) * 1985-11-07 1987-05-21 Steinmueller Gmbh L & C Verfahren und anlage zur beschickung von hydrozyklonen mit einer feststoff beladenen fluessigkeit
DE19508430A1 (de) 1995-03-09 1996-09-12 Schauenburg Masch Hydrozyklon
DE19849870A1 (de) * 1998-10-29 2000-05-11 Akw Apparate Verfahren Hydrozyklonanordnung, sowie dazugehöriges Verfahren
DE19849870C2 (de) 1998-10-29 2002-10-31 Akw App Und Verfahren Gmbh & C Hydrozyklonanordnung

Also Published As

Publication number Publication date
DE102011103417A1 (de) 2012-09-06

Similar Documents

Publication Publication Date Title
EP2348894B1 (fr) Procédé permettant de réduire la teneur en pulpe de jus de fruits pulpeux
DE102009006704A1 (de) Verfahren zum Betreiben einer Anlage und eine Anlage zur Herstellung von Faser-, MDF, HDF, Holzwerkstoff- oder Kunststoffplatten aus Fasern oder faserähnlichem Material
WO2011029110A1 (fr) Procédé et dispositif destiné à concentrer des solutions de matière
EP2440332B1 (fr) Procédé de préparation par voie humide de matériaux, en particulier de minerais ou matières similaires, au moyen d'un processus de broyage en circuit
EP1124642A1 (fr) Ensemble hydrocyclone et procede correspondant
EP2495049A1 (fr) Ensemble d'hydrocyclones
EP2358479A2 (fr) Ensemble hydrocyclone
EP0186021A2 (fr) Dispositif pour récupérer du sable, en particulier du sable très fin
EP3247506B1 (fr) Dispositif et procédé de conditionnement de colle
WO2013110386A1 (fr) Procédé de régulation d'un processus de flottaison pour le désencrage de papiers usés
WO2024081986A1 (fr) Appareil pour la granulation sous-marine de plastiques par de l'eau sous pression à une température d'eau de traitement supérieure à 100° c
EP2864018A1 (fr) Filtration en dérivation
DE3346445A1 (de) Verfahren und vorrichtung zum betrieb einer luftstrom-mahlanlage mit becherwerksumlauf
EP0735916A1 (fr) Procede et dispositif permettant de concentrer des melanges solides/liquides a l'aide de la technologie des membranes
EP2606177A2 (fr) Procédé de filtrage de suspensions
AT507742A1 (de) Verfahren zum austragen von stückeligem brennstoff, insbesondere pellets, aus einem lagerraum und vorrichtung zur durchführung des verfahrens
DE19923600A1 (de) Verfahren zur Aufbereitung von mineralischen Rohstoffen, insbesondere von Steinkohle
DE102009017097B4 (de) Verfahren zur kontinuierlichen Behandlung einer Salz enthaltenden Lösung
DE102009020595A1 (de) Vorrichtung zum Reinigen von Flüssigkeiten von suspendierten Partikeln und anderen Verunreinigungen
DE102024131217B3 (de) Sichtervorrichtung zum Trennen von Sichtgut in ein Feingut und ein Grobgut, Sichtersystem sowie Verfahren zum Betreiben einer Sichtervorrichtung
DD260429A1 (de) Vorrichtung zum kontinuierlichen herstellen von standardisierter milch
DE102005016192A1 (de) Verfahren zum Auflösen und Reinigen von störstoffhaltigen Papierrohrstoffen
DE3015722A1 (de) Vorrichtung zur herstellung von holzschliff
DE102007039518A1 (de) Sichtender Granulieraustrag für Wirbelschicht - Granulationsapparate
DE102011000669A1 (de) Verfahren und Anlage zur Separation eines Material beladenen Heißgasstromes

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20120718

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20140901