GB985326A - A method of regulating the withdrawal of pulp from two or more thickeners - Google Patents

A method of regulating the withdrawal of pulp from two or more thickeners

Info

Publication number
GB985326A
GB985326A GB12276/62A GB1227662A GB985326A GB 985326 A GB985326 A GB 985326A GB 12276/62 A GB12276/62 A GB 12276/62A GB 1227662 A GB1227662 A GB 1227662A GB 985326 A GB985326 A GB 985326A
Authority
GB
United Kingdom
Prior art keywords
flow
pulp
component
tank
thickeners
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
Application number
GB12276/62A
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.)
Kloeckner Humboldt Deutz AG
Original Assignee
Kloeckner Humboldt Deutz AG
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 Kloeckner Humboldt Deutz AG filed Critical Kloeckner Humboldt Deutz AG
Publication of GB985326A publication Critical patent/GB985326A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/02—Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation
    • B03B5/10—Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation on jigs
    • B03B5/24—Constructional details of jigs, e.g. pulse control devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0093—Mechanisms for taking out of action one or more units of a multi-unit settling mechanism
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/245—Discharge mechanisms for the sediments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/30—Control equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/30—Control equipment
    • B01D21/32—Density control of clear liquid or sediment, e.g. optical control ; Control of physical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/30—Control equipment
    • B01D21/34—Controlling the feed distribution; Controlling the liquid level ; Control of process parameters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/30—Control equipment
    • B01D21/302—Active control mechanisms with external energy, e.g. with solenoid valve

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatment Of Sludge (AREA)
  • Paper (AREA)

Abstract

985,326. Washing granular materials. KLOCKNER - HUMBOLDT - DEUTZ A. G. March 30, 1962 [March 30, 1961], No. 12276/62. Heading B2H. A method of regulating the withdrawal of pulp from two or more thickeners 1, 2 and 3 is characterized by the pulp being withdrawn from each thickener in two separate component streams, the flow of one component stream from each thickener being regulated depending on the density of the pulp in the associated thickener and of the other component stream being regulated depending on the sum of the flow from all the thickeners. A device for carrying out this method comprises a density measuring device 18, 19, 20 which controls the flow of the first component stream 1a, 2a, 3a through setting members 12, 14, 16 into a tank 10 in which is a volume measuring device 21 which regulates the flow of the second component streams 1b, 2b, 3b by means of setting members 13, 15, 17. All the setting members, 12 to 17, consist of a slide or other valve, a control head and a motor which sets the valve and are constructed to give a minimum flow of the component streams, 1a to 3b, independently of regulation. The density devices 18, 19, 20 and the volume device 21 consist of dip-tubes through which compressed air flows. An optical or acoustic signal may give warning of high levels in the tank 10. An alternative arrangement illustrated in Fig. 2 (not shown) withdraws the two component streams from each tank through a Y-tube attached to a single outlet instead of from two separate outlets as in Fig. 1.
GB12276/62A 1961-03-30 1962-03-30 A method of regulating the withdrawal of pulp from two or more thickeners Expired GB985326A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK43357A DE1160407B (en) 1961-03-30 1961-03-30 Process for regulating the discharge from thickeners

Publications (1)

Publication Number Publication Date
GB985326A true GB985326A (en) 1965-03-10

Family

ID=7223084

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12276/62A Expired GB985326A (en) 1961-03-30 1962-03-30 A method of regulating the withdrawal of pulp from two or more thickeners

Country Status (2)

Country Link
DE (1) DE1160407B (en)
GB (1) GB985326A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4074440A (en) * 1974-04-24 1978-02-21 Mitsubishi Jukogyo Kabushiki Kaisha Automatic vacuum dehydrating apparatus in a slurry carrying vessel
AT506279A1 (en) * 2007-12-20 2009-07-15 Gassner Kurt Ing DISCONTINUOUS METHOD OF WASTEWATER CLEANING

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB777104A (en) * 1952-04-09 1957-06-19 Fernand Louis Improvements in or relating to decantation apparatus

Also Published As

Publication number Publication date
DE1160407B (en) 1964-01-02

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