US2927693A - Cleaning of paper pulp suspensions - Google Patents

Cleaning of paper pulp suspensions Download PDF

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Publication number
US2927693A
US2927693A US493352A US49335255A US2927693A US 2927693 A US2927693 A US 2927693A US 493352 A US493352 A US 493352A US 49335255 A US49335255 A US 49335255A US 2927693 A US2927693 A US 2927693A
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US
United States
Prior art keywords
vortex
stock
cone
liquid
outlet
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
US493352A
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English (en)
Inventor
Horace Freeman
John Douglas Boadway
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.)
Nichols Engineering and Research Corp
Original Assignee
Individual
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
Priority to BE544291D priority Critical patent/BE544291A/xx
Application filed by Individual filed Critical Individual
Priority to US493352A priority patent/US2927693A/en
Priority to FR1147973D priority patent/FR1147973A/fr
Priority to AU15175/56A priority patent/AU206014B2/en
Priority to NL203983A priority patent/NL127821C/nl
Priority to CH345872D priority patent/CH345872A/de
Priority to DEF19468A priority patent/DE1092445B/de
Priority to FI0354/56A priority patent/FI40605B/fi
Application granted granted Critical
Publication of US2927693A publication Critical patent/US2927693A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • B04C5/08—Vortex chamber constructions
    • B04C5/081—Shapes or dimensions
    • 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
    • B04C5/08—Vortex chamber constructions
    • B04C5/107—Cores; Devices for inducing an air-core in hydrocyclones
    • 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
    • B04C5/15—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations with swinging flaps or revolving sluices; Sluices; Check-valves
    • 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
    • B04C5/18—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations with auxiliary fluid assisting discharge
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/62—Sand traps

Definitions

  • this function is a function which will have a value depending on the friction encountered by the vortex, and somewhere between 1 for a theoretical frictionfree vortex and +1 for a theoretical friction vortex in which all energy is lost by friction.
  • this function n will be an intermediate value, say of 0.75.
  • a plurality of separators at A of a type adapted to separate both gas and heavier particles from pulp suspensions may be as per the construction shown in our co-pending application Serial No. 425,942, filed April 27, 1954, now Patent No. 2,757,582, reference to which is hereby made.
  • the incoming stock to be treated is pumped from a conduit 50 by pump 51 and pipe line 52 into the inlets 53 of the devices A.
  • the accepted cleaned stock from these devices ' is" conducted,
  • the curves 70 and 71 represent the results of tests made with apparatus of the size and proportions hereina above disclosed and with the stock to be treated intro-v quizzed to the device at a pressure of about 41 lbs. per sq.

Landscapes

  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cyclones (AREA)
  • Paper (AREA)
US493352A 1955-03-10 1955-03-10 Cleaning of paper pulp suspensions Expired - Lifetime US2927693A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
BE544291D BE544291A (es) 1955-03-10
US493352A US2927693A (en) 1955-03-10 1955-03-10 Cleaning of paper pulp suspensions
AU15175/56A AU206014B2 (en) 1955-03-10 1956-01-13 Apparatus for separating undesired particles from liquids and liquid suspensions
FR1147973D FR1147973A (fr) 1955-03-10 1956-01-13 Perfectionnements à l'épuration des suspensions de pâte à papier ou des liquides analogues
NL203983A NL127821C (es) 1955-03-10 1956-01-27
CH345872D CH345872A (de) 1955-03-10 1956-01-31 Vorrichtung zum Abscheiden von Teilchen aus Flüssigkeiten, Flüssigkeitsgemischen und Suspensionen
DEF19468A DE1092445B (de) 1955-03-10 1956-02-07 Vorrichtung zum Ausscheiden unerwuenschter Teilchen aus Fluessigkeiten
FI0354/56A FI40605B (es) 1955-03-10 1956-03-08

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US493352A US2927693A (en) 1955-03-10 1955-03-10 Cleaning of paper pulp suspensions

Publications (1)

Publication Number Publication Date
US2927693A true US2927693A (en) 1960-03-08

Family

ID=23959888

Family Applications (1)

Application Number Title Priority Date Filing Date
US493352A Expired - Lifetime US2927693A (en) 1955-03-10 1955-03-10 Cleaning of paper pulp suspensions

Country Status (8)

Country Link
US (1) US2927693A (es)
AU (1) AU206014B2 (es)
BE (1) BE544291A (es)
CH (1) CH345872A (es)
DE (1) DE1092445B (es)
FI (1) FI40605B (es)
FR (1) FR1147973A (es)
NL (1) NL127821C (es)

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2996187A (en) * 1961-08-15 payne
US3086717A (en) * 1957-07-22 1963-04-23 Cons Paper Corp Ltd Separation of bark components
US3219186A (en) * 1962-10-30 1965-11-23 Victor Rakowsky Whirlpool apparatus
US3264806A (en) * 1959-12-22 1966-08-09 Neumann Willy Centrifugal dust separator assembly
DE1259192B (de) * 1962-11-23 1968-01-18 Voith Gmbh J M Anlage zum Aufbereiten von Faserstoffen fuer die Herstellung von Papier, Pappe od. dgl.
US3419152A (en) * 1966-09-22 1968-12-31 D I P A Centrifugal purifier
US3421622A (en) * 1965-08-19 1969-01-14 Nichols Eng & Res Corp Cleaning and deaerating paper pulp suspensions
US3696927A (en) * 1969-02-13 1972-10-10 Celleco Ab Hydrocyclone
US3696934A (en) * 1967-09-02 1972-10-10 Saburo Oisi Apparatus for centrifugally separating impurities from fluid suspensions
US3971718A (en) * 1973-07-20 1976-07-27 Elast-O-Cor Products & Engineering Limited Hydrocyclone separator or classifier
US4140632A (en) * 1976-08-06 1979-02-20 Consolidated-Bathurst Limited Concentrator device and method
US4217207A (en) * 1977-12-14 1980-08-12 Liller Delbert I Continuous method of cleaning a slurry of crushed raw coal
US4219409A (en) * 1977-12-14 1980-08-26 Liller Delbert I Inlet line deflector and equalizer means for a classifying cyclone used for washing and method of washing using deflectors and equalizers
EP0022852A1 (en) * 1979-01-19 1981-01-28 John R Schilling DIVERGENT TOURBILLON SEPARATOR.
US4378289A (en) * 1981-01-07 1983-03-29 Hunter A Bruce Method and apparatus for centrifugal separation
WO1983003986A1 (en) * 1982-05-07 1983-11-24 The Bauer Bros. Co. Hydrocyclone featuring hydraulic jump in overflow passage
US4605495A (en) * 1984-03-19 1986-08-12 Bird Machine Company, Inc. Hydrocyclone separator apparatus
WO1986006653A1 (en) * 1985-05-03 1986-11-20 Larox Oy Hydraulic classifying procedure and means
US4676809A (en) * 1984-09-12 1987-06-30 Celleco Ab Hydrocyclone plant
EP0287721A2 (en) * 1987-04-22 1988-10-26 Conoco Specialty Products Inc. Cyclone separator
US4842145A (en) * 1981-06-22 1989-06-27 B.W.N. Vortoil Rights Co. Pty. Ltd. Arrangement of multiple fluid cyclones
US5564574A (en) * 1995-02-17 1996-10-15 Phase Remediation Incorporated Mineral separator
FR2785899A1 (fr) * 1998-11-18 2000-05-19 Omnium Traitement Valorisa Procede de traitement d'eau par flocs lestes integrant un recyclage de materiau granulaire mettant en oeuvre un hydrocyclone correspondant
US6530484B1 (en) * 1999-11-18 2003-03-11 Multotec Process Equipment (Proprietary) Ltd. Dense medium cyclone separator
AU770931B2 (en) * 1999-11-18 2004-03-11 Multotec Process Equipment (Pty) Ltd Dense medium cyclone separator
US6758343B1 (en) * 1999-06-02 2004-07-06 Weir Slurry Group, Inc. Dual hydro-cyclone with water injection
WO2008039115A1 (en) 2006-09-28 2008-04-03 Watreco Ab Vortex generator
US20190022585A1 (en) * 2017-07-20 2019-01-24 Brett Evan Patrick Process and apparatus to remove carbon-14 from carbon-dioxide in atmospheric gases and agricultural products grown in controlled environments
US10301186B2 (en) * 2014-03-31 2019-05-28 Nippon Paper Industries Co., Ltd. Complexes of calcium carbonate microparticles and fibers as well as processes for preparing them
WO2020157383A1 (en) 2019-01-31 2020-08-06 Andritz Oy A reject chamber of a centrifugal cleaner and a centrifugal cleaner
CN113182086A (zh) * 2021-05-19 2021-07-30 重庆工商大学 一种乳状液的破乳脱水分离方法

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1271052B (de) * 1962-10-30 1968-06-27 Victor Rakowsky Wirbelscheider zum Trennen von wichtedifferenzierten Feststoffteilchen in Schweretrueben
FR1377356A (fr) * 1963-08-12 1964-11-06 Neyrpic Ateliers Neyret Beylie Dispositif séparateur
WO1985001454A1 (en) * 1983-10-06 1985-04-11 Noel Carroll Cyclone separator
US4849107A (en) * 1985-10-21 1989-07-18 Thew Martin T Cyclone separator
AU607406B2 (en) * 1985-10-21 1991-03-07 Conoco Specialty Products Inc. Cyclone separator
WO1987002275A1 (en) * 1985-10-21 1987-04-23 Carroll, Noel Cyclone separator
AT516856B1 (de) * 2015-08-21 2016-09-15 Andritz Ag Maschf Hydrozyklon mit Feinstoffabreicherung im Zyklonunterlauf
DE102017109683A1 (de) * 2017-05-05 2018-11-08 Bvg Bauer Verfahrenstechnik Gmbh Vorrichtung zur Trennung von Festteilchen aus Suspensionen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2346005A (en) * 1940-08-15 1944-04-04 Tandy A Bryson Vortex separator
US2377524A (en) * 1939-11-21 1945-06-05 Hammermill Paper Co Method of and means for separating solid particles in pulp suspensions and the like
GB607787A (en) * 1945-07-23 1948-09-06 Maximiliaan Gustaaf Driessen Improvements in and relating to the concentration or thickening of liquids containing solid matter in suspension
US2521103A (en) * 1948-09-15 1950-09-05 Minute Arthur Vortex separator for paper pulp
US2532885A (en) * 1947-04-11 1950-12-05 Berges Andre Charles Vortex type separator for paper pulp
US2757582A (en) * 1952-09-24 1956-08-07 Nichols Engineering And Res Co Separation of gas and undesired particles from liquids

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB479691A (en) * 1935-08-16 1938-02-10 Bbc Brown Boveri & Cie Improvements in and relating to centrifugal separators
BE426877A (es) * 1936-03-11
BE508486A (es) * 1951-01-19
FR1037980A (fr) * 1951-06-01 1953-09-24 Lamex Soc Classeur-concentrateur d'éléments solides en suspension dans un fluide en mouvement

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2377524A (en) * 1939-11-21 1945-06-05 Hammermill Paper Co Method of and means for separating solid particles in pulp suspensions and the like
US2346005A (en) * 1940-08-15 1944-04-04 Tandy A Bryson Vortex separator
GB607787A (en) * 1945-07-23 1948-09-06 Maximiliaan Gustaaf Driessen Improvements in and relating to the concentration or thickening of liquids containing solid matter in suspension
US2532885A (en) * 1947-04-11 1950-12-05 Berges Andre Charles Vortex type separator for paper pulp
US2521103A (en) * 1948-09-15 1950-09-05 Minute Arthur Vortex separator for paper pulp
US2757582A (en) * 1952-09-24 1956-08-07 Nichols Engineering And Res Co Separation of gas and undesired particles from liquids

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2996187A (en) * 1961-08-15 payne
US3086717A (en) * 1957-07-22 1963-04-23 Cons Paper Corp Ltd Separation of bark components
US3264806A (en) * 1959-12-22 1966-08-09 Neumann Willy Centrifugal dust separator assembly
US3219186A (en) * 1962-10-30 1965-11-23 Victor Rakowsky Whirlpool apparatus
DE1259192B (de) * 1962-11-23 1968-01-18 Voith Gmbh J M Anlage zum Aufbereiten von Faserstoffen fuer die Herstellung von Papier, Pappe od. dgl.
US3421622A (en) * 1965-08-19 1969-01-14 Nichols Eng & Res Corp Cleaning and deaerating paper pulp suspensions
US3419152A (en) * 1966-09-22 1968-12-31 D I P A Centrifugal purifier
US3696934A (en) * 1967-09-02 1972-10-10 Saburo Oisi Apparatus for centrifugally separating impurities from fluid suspensions
US3696927A (en) * 1969-02-13 1972-10-10 Celleco Ab Hydrocyclone
US3971718A (en) * 1973-07-20 1976-07-27 Elast-O-Cor Products & Engineering Limited Hydrocyclone separator or classifier
US4140632A (en) * 1976-08-06 1979-02-20 Consolidated-Bathurst Limited Concentrator device and method
US4217207A (en) * 1977-12-14 1980-08-12 Liller Delbert I Continuous method of cleaning a slurry of crushed raw coal
US4219409A (en) * 1977-12-14 1980-08-26 Liller Delbert I Inlet line deflector and equalizer means for a classifying cyclone used for washing and method of washing using deflectors and equalizers
EP0022852A1 (en) * 1979-01-19 1981-01-28 John R Schilling DIVERGENT TOURBILLON SEPARATOR.
US4378289A (en) * 1981-01-07 1983-03-29 Hunter A Bruce Method and apparatus for centrifugal separation
US4842145A (en) * 1981-06-22 1989-06-27 B.W.N. Vortoil Rights Co. Pty. Ltd. Arrangement of multiple fluid cyclones
WO1983003986A1 (en) * 1982-05-07 1983-11-24 The Bauer Bros. Co. Hydrocyclone featuring hydraulic jump in overflow passage
US4605495A (en) * 1984-03-19 1986-08-12 Bird Machine Company, Inc. Hydrocyclone separator apparatus
US4676809A (en) * 1984-09-12 1987-06-30 Celleco Ab Hydrocyclone plant
WO1986006653A1 (en) * 1985-05-03 1986-11-20 Larox Oy Hydraulic classifying procedure and means
AU596592B2 (en) * 1985-05-03 1990-05-10 Larox Oy Hydraulic classifying procedure and means
EP0287721A2 (en) * 1987-04-22 1988-10-26 Conoco Specialty Products Inc. Cyclone separator
EP0287721A3 (en) * 1987-04-22 1990-03-07 Conoco Specialty Products Inc. Cyclone separator
US5564574A (en) * 1995-02-17 1996-10-15 Phase Remediation Incorporated Mineral separator
FR2785899A1 (fr) * 1998-11-18 2000-05-19 Omnium Traitement Valorisa Procede de traitement d'eau par flocs lestes integrant un recyclage de materiau granulaire mettant en oeuvre un hydrocyclone correspondant
WO2000029335A1 (fr) * 1998-11-18 2000-05-25 Otv Omnium De Traitement Et De Valorisation Procede de traitement d'eau par flocs lestes integrant un recyclage de materiau granulaire
US6645386B1 (en) 1998-11-18 2003-11-11 Otv Sa Water treatment method by ballasted floc including a recycling of granular material
US6758343B1 (en) * 1999-06-02 2004-07-06 Weir Slurry Group, Inc. Dual hydro-cyclone with water injection
AU770931B2 (en) * 1999-11-18 2004-03-11 Multotec Process Equipment (Pty) Ltd Dense medium cyclone separator
US6530484B1 (en) * 1999-11-18 2003-03-11 Multotec Process Equipment (Proprietary) Ltd. Dense medium cyclone separator
WO2008039115A1 (en) 2006-09-28 2008-04-03 Watreco Ab Vortex generator
EP2084108A1 (en) * 2006-09-28 2009-08-05 Watreco AB Vortex generator
EP2084108A4 (en) * 2006-09-28 2012-10-31 Watreco Ip Ab VORTEX GENERATOR
US10301186B2 (en) * 2014-03-31 2019-05-28 Nippon Paper Industries Co., Ltd. Complexes of calcium carbonate microparticles and fibers as well as processes for preparing them
US20190022585A1 (en) * 2017-07-20 2019-01-24 Brett Evan Patrick Process and apparatus to remove carbon-14 from carbon-dioxide in atmospheric gases and agricultural products grown in controlled environments
US10905998B2 (en) * 2017-07-20 2021-02-02 Brett Evan Patrick Process and apparatus to remove carbon-14 from carbon-dioxide in atmospheric gases and agricultural products grown in controlled environments
US11192067B2 (en) 2017-07-20 2021-12-07 Brett Evan Patrick Process and apparatus to remove carbon-14 from carbon-dioxide in atmospheric gases and agricultural products grown in controlled environments
US11554345B2 (en) 2017-07-20 2023-01-17 Brett Patrick Process and apparatus to remove carbon-14 from carbon-dioxide in atmospheric gases and agricultural products grown in controlled environments
WO2020157383A1 (en) 2019-01-31 2020-08-06 Andritz Oy A reject chamber of a centrifugal cleaner and a centrifugal cleaner
CN113182086A (zh) * 2021-05-19 2021-07-30 重庆工商大学 一种乳状液的破乳脱水分离方法

Also Published As

Publication number Publication date
NL127821C (es) 1969-12-15
DE1092445B (de) 1960-11-10
CH345872A (de) 1960-04-30
AU1517556A (en) 1956-07-19
FI40605B (es) 1968-11-30
AU206014B2 (en) 1957-01-18
BE544291A (es) 1900-01-01
NL203983A (es) 1964-02-10
FR1147973A (fr) 1957-12-02

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