WO1997021988A3 - Method and apparatus for determining the profile of a sludge bed in a thickener - Google Patents

Method and apparatus for determining the profile of a sludge bed in a thickener Download PDF

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Publication number
WO1997021988A3
WO1997021988A3 PCT/IB1996/001505 IB9601505W WO9721988A3 WO 1997021988 A3 WO1997021988 A3 WO 1997021988A3 IB 9601505 W IB9601505 W IB 9601505W WO 9721988 A3 WO9721988 A3 WO 9721988A3
Authority
WO
WIPO (PCT)
Prior art keywords
tank
profile
thickener
determining
fluid volume
Prior art date
Application number
PCT/IB1996/001505
Other languages
French (fr)
Other versions
WO1997021988A2 (en
Inventor
Robert C Emmett
Paul W Chase
George Priday
Original Assignee
Baker Hughes Inc
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 Baker Hughes Inc filed Critical Baker Hughes Inc
Priority to AU18068/97A priority Critical patent/AU1806897A/en
Publication of WO1997021988A2 publication Critical patent/WO1997021988A2/en
Publication of WO1997021988A3 publication Critical patent/WO1997021988A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G01N9/26—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring pressure differences
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/04—Investigating sedimentation of particle suspensions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N2001/1006—Dispersed solids
    • G01N2001/1012—Suspensions
    • G01N2001/1025—Liquid suspensions; Slurries; Mud; Sludge

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Fluid Mechanics (AREA)
  • Treatment Of Sludge (AREA)
  • Paper (AREA)

Abstract

An apparatus and method are disclosed for determining the pulp density gradient in a volume of solids-containing fluid processed in a setting tank or thickener tank. The apparatus includes a depth detection device and pressure detection device which provide pressure readings at various depth levels in the fluid volume within the tank. The depth measurements and corresponding pressure measurements at those depths are recorded and calculated by electronic means into a pulp density profile of the fluid volume. The known density profile of a fluid volume, or sludge bed profile, is associated with a solids concentration gradient and facilitates the optimal operation of a settling tank or thickener tank and permits the modification of other operating parameters, such as addition of flocculant, to optimize operation.
PCT/IB1996/001505 1995-12-13 1996-12-13 Method and apparatus for determining the profile of a sludge bed in a thickener WO1997021988A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU18068/97A AU1806897A (en) 1995-12-13 1996-12-13 Method and apparatus for determining the profile of a sludge bed in a thickener

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US57150995A 1995-12-13 1995-12-13
US08/571,509 1995-12-13

Publications (2)

Publication Number Publication Date
WO1997021988A2 WO1997021988A2 (en) 1997-06-19
WO1997021988A3 true WO1997021988A3 (en) 1997-08-07

Family

ID=24283995

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1996/001505 WO1997021988A2 (en) 1995-12-13 1996-12-13 Method and apparatus for determining the profile of a sludge bed in a thickener

Country Status (3)

Country Link
AU (1) AU1806897A (en)
WO (1) WO1997021988A2 (en)
ZA (1) ZA9610562B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5848714A (en) * 1996-12-23 1998-12-15 Deknatel Technology Corporation Suture rack
GB2361915B (en) * 2000-05-05 2002-12-24 Genesis Fluid Solutions Llc High speed dewatering of slurries
JP2002236084A (en) * 2000-06-26 2002-08-23 Yokogawa Electric Corp Method and device for measuring concentration of mixed suspended matter
EP1403522B1 (en) 2002-09-26 2005-11-23 Grundfos A/S Method for detecting a differential pressure
EP1582848A1 (en) * 2004-04-02 2005-10-05 Hectronic Ag Method and apparatus for testing the type and the quality of a liquid in a tank
US20130338937A1 (en) * 2011-03-09 2013-12-19 Universite Libre De Bruxelles Method for determining suspended matter loads concentrations in a liquid
WO2013171652A1 (en) * 2012-05-14 2013-11-21 Paterson & Cooke Consulting Scientists (Proprietary) Limited Method of controlling a gravity sedimentation device
US9506850B2 (en) 2013-05-06 2016-11-29 Westech Engineering, Inc. Apparatus and method for determining one or more characteristics of a viscous material
GB2560153B8 (en) * 2017-01-30 2021-01-13 Intellisense Io Ltd Mineral recovery control
US11873238B2 (en) 2017-01-30 2024-01-16 Intellisense.Io Ltd Mineral recovery control
CN113358182A (en) * 2020-03-03 2021-09-07 亓传周 Automatic intelligent sounding rod

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4226714A (en) * 1978-12-27 1980-10-07 The Anaconda Company Thickener control system
US4273658A (en) * 1977-10-19 1981-06-16 Exxon Production Research Company Thickener control process
US5211678A (en) * 1991-08-14 1993-05-18 Halliburton Company Apparatus, method and system for monitoring fluid
WO1994007122A1 (en) * 1992-09-11 1994-03-31 Whessoe Plc Density measurement
DE9406025U1 (en) * 1994-04-12 1994-07-28 IER Meß- und Regeltechnik Eberhard Henkel GmbH, 68199 Mannheim Device for measuring the sludge level and the sludge density in containers
US5376280A (en) * 1993-10-25 1994-12-27 Westech Engineering, Inc. Flocculation control system and method
WO1995031699A1 (en) * 1994-05-17 1995-11-23 Tecnetics Industries, Inc. System and method for sensing material level within a container

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4273658A (en) * 1977-10-19 1981-06-16 Exxon Production Research Company Thickener control process
US4226714A (en) * 1978-12-27 1980-10-07 The Anaconda Company Thickener control system
US5211678A (en) * 1991-08-14 1993-05-18 Halliburton Company Apparatus, method and system for monitoring fluid
WO1994007122A1 (en) * 1992-09-11 1994-03-31 Whessoe Plc Density measurement
US5376280A (en) * 1993-10-25 1994-12-27 Westech Engineering, Inc. Flocculation control system and method
DE9406025U1 (en) * 1994-04-12 1994-07-28 IER Meß- und Regeltechnik Eberhard Henkel GmbH, 68199 Mannheim Device for measuring the sludge level and the sludge density in containers
WO1995031699A1 (en) * 1994-05-17 1995-11-23 Tecnetics Industries, Inc. System and method for sensing material level within a container

Also Published As

Publication number Publication date
ZA9610562B (en) 1997-06-20
AU1806897A (en) 1997-07-03
WO1997021988A2 (en) 1997-06-19

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