EP2358479B1 - Hydrozyklonanordnung - Google Patents

Hydrozyklonanordnung Download PDF

Info

Publication number
EP2358479B1
EP2358479B1 EP10751877A EP10751877A EP2358479B1 EP 2358479 B1 EP2358479 B1 EP 2358479B1 EP 10751877 A EP10751877 A EP 10751877A EP 10751877 A EP10751877 A EP 10751877A EP 2358479 B1 EP2358479 B1 EP 2358479B1
Authority
EP
European Patent Office
Prior art keywords
underflow
container
hydrocyclone
feed
overflow
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.)
Not-in-force
Application number
EP10751877A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2358479A2 (de
Inventor
Peter Kaniut
Thomas 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 EP2358479A2 publication Critical patent/EP2358479A2/de
Application granted granted Critical
Publication of EP2358479B1 publication Critical patent/EP2358479B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • B04C5/14—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
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/22—Apparatus in which the axial direction of the vortex is reversed with cleaning means
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
    • D21D5/18—Purification of the pulp suspension by mechanical means; Apparatus therefor with the aid of centrifugal force
    • D21D5/24—Purification of the pulp suspension by mechanical means; Apparatus therefor with the aid of centrifugal force in cyclones

Definitions

  • the invention relates to a method for operating a hydrocyclone arrangement according to the preamble of patent claim 1 and to a hydrocyclone arrangement for carrying out such a method according to the preamble of claim 10.
  • Such apparatus are used to classify polydisperse suspensions as close as possible to a desired particle size. For physical and structural reasons, however, the selectivity in a continuous operation of hydrocyclones are limited.
  • the discharge capacity of the lower reaches can be increased and can be dispensed with a pre-separation of coarse grain. Even with highly fluctuating feed conditions, it is possible to stabilize the size of the separation grain and to maximize the solids content in the underflow. However, in many applications, the selectivity is not enough to meet the demands of the users.
  • the fresh water filling prevents unwanted discharge of liquid in the cyclone underflow. Rather, only the deposited solid is applied.
  • suspension volume which is discharged in the circuit via the upper reaches of the cyclone, remains largely constant, especially when the feed solids content is only a few percent by volume.
  • a lockable connection between the upper reaches and the feed tank is provided to guide the fine grain suspension from the upper reaches over a predetermined or predetermined time in a cycle.
  • the particular suspension volume to be separated is introduced into the feed tank in batches and then fed to the hydrocyclone.
  • the filling of the underflow tank with fresh water takes place before the hydrocyclone is put into operation so that the discharge of fine grain into the underflow tank is effectively reduced.
  • the fine grain fraction is discharged after shutting off the connection between the upper run and the feed tank.
  • a slider or a three-way valve can be used.
  • the feed tank is filled with a new batch to be treated.
  • a predetermined amount of the suspension can be withdrawn from the underflow container during the separation process.
  • underflow container is connected via a further shut-off device with a fresh water pressure line.
  • the removal of the cleaning water can be done via the lockable connection between the upper reaches and feed tank, the relevant shut-off device as a three-way valve or slide, as already stated, may be formed.
  • the underflow container include an elbow through which a cleaning rod or needle for loosening contaminants insertable or in this area is movable into it.
  • the feed tank has a measuring device for determining the suspension level and it is provided on the upper and lower run an array of measuring means for solids content determination.
  • the discharged through the underflow nozzle 5 coarse grain 6 is collected in a closed underflow container 7.
  • the underflow container 7 is filled with fresh water 8 before the hydrocyclone is put into operation. This filling takes place via corresponding pipelines (pressure lines) and a shut-off valve 12.
  • the fine-grain suspension 9 in the upper run of the hydrocyclone 4 is returned to the feed tank 2.
  • the cycle via the feed tank 2 to the hydrocyclone 4 is performed until the desired separation is achieved.
  • a check valve 13 is located between the underflow nozzle 5 and the underflow container 7 .
  • the suspension level 17 it is possible to determine the suspension level 17 via a suitable measuring device L.
  • the solids content 18 in the fine grain suspension of the upper reaches and in the lower reaches can be determined.
  • the coarse grain suspension is discharged via a nozzle at the bottom of the underflow after opening the slide, wherein the discharge can be realized as a free outflow or only with the aid of a withdrawal pump.
  • the slide between the underflow nozzle and the underflow container enables the complete or partial removal of coarse grain even during cyclone operation. As a result, a fractionation of the coarse grain can be achieved be, since initially the coarsest, later finer and finer fractions are separated.
  • Blockages in the underflow can, as shown Fig. 3 be eliminated by a cleaning rod 19 is inserted through the nozzle at the bottom of the underflow container.
  • This cleaning rod 19 may be encountered in a blockage in the underflow nozzle 16.
  • the discharge nozzle is located directly under the underflow nozzle 16.
  • the needle 19 may have a guide which ensures its alignment with the underflow opening.
  • a cleaning of the lower courses can be done after each separation cycle as a precaution.
  • the clogging of a cyclone does not affect the overall separation result.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cyclones (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
EP10751877A 2009-08-28 2010-08-23 Hydrozyklonanordnung Not-in-force EP2358479B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910039238 DE102009039238B3 (de) 2009-08-28 2009-08-28 Hydrozyklonanordnung
PCT/EP2010/062272 WO2011023663A2 (de) 2009-08-28 2010-08-23 Hydrozyklonanordnung

Publications (2)

Publication Number Publication Date
EP2358479A2 EP2358479A2 (de) 2011-08-24
EP2358479B1 true EP2358479B1 (de) 2013-01-16

Family

ID=43430886

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10751877A Not-in-force EP2358479B1 (de) 2009-08-28 2010-08-23 Hydrozyklonanordnung

Country Status (4)

Country Link
EP (1) EP2358479B1 (es)
DE (1) DE102009039238B3 (es)
ES (1) ES2403090T3 (es)
WO (1) WO2011023663A2 (es)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9885194B1 (en) 2017-05-11 2018-02-06 Hayward Industries, Inc. Pool cleaner impeller subassembly
US9885196B2 (en) 2015-01-26 2018-02-06 Hayward Industries, Inc. Pool cleaner power coupling
US9896858B1 (en) 2017-05-11 2018-02-20 Hayward Industries, Inc. Hydrocyclonic pool cleaner
US9909333B2 (en) 2015-01-26 2018-03-06 Hayward Industries, Inc. Swimming pool cleaner with hydrocyclonic particle separator and/or six-roller drive system
US10156083B2 (en) 2017-05-11 2018-12-18 Hayward Industries, Inc. Pool cleaner power coupling

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI43305C (fi) * 1962-12-20 1971-03-10 Bauer Bros Co Hydrosykloni
DE3539483C3 (de) * 1985-11-07 1994-12-15 Steinmueller Gmbh L & C Verfahren und Anlage zur Beschickung von Hydrozyklonen mit einer Feststoff beladenen Flüssigkeit
DE19508430A1 (de) * 1995-03-09 1996-09-12 Schauenburg Masch Hydrozyklon
DE19849870C2 (de) * 1998-10-29 2002-10-31 Akw App Und Verfahren Gmbh & C Hydrozyklonanordnung

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9885196B2 (en) 2015-01-26 2018-02-06 Hayward Industries, Inc. Pool cleaner power coupling
US9909333B2 (en) 2015-01-26 2018-03-06 Hayward Industries, Inc. Swimming pool cleaner with hydrocyclonic particle separator and/or six-roller drive system
US10557278B2 (en) 2015-01-26 2020-02-11 Hayward Industries, Inc. Pool cleaner with cyclonic flow
US11236523B2 (en) 2015-01-26 2022-02-01 Hayward Industries, Inc. Pool cleaner with cyclonic flow
US9885194B1 (en) 2017-05-11 2018-02-06 Hayward Industries, Inc. Pool cleaner impeller subassembly
US9896858B1 (en) 2017-05-11 2018-02-20 Hayward Industries, Inc. Hydrocyclonic pool cleaner
US10156083B2 (en) 2017-05-11 2018-12-18 Hayward Industries, Inc. Pool cleaner power coupling
US10253517B2 (en) 2017-05-11 2019-04-09 Hayward Industries, Inc. Hydrocyclonic pool cleaner
US10767382B2 (en) 2017-05-11 2020-09-08 Hayward Industries, Inc. Pool cleaner impeller subassembly

Also Published As

Publication number Publication date
EP2358479A2 (de) 2011-08-24
DE102009039238B3 (de) 2011-05-12
WO2011023663A3 (de) 2011-04-21
ES2403090T3 (es) 2013-05-14
WO2011023663A2 (de) 2011-03-03

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