EP1879675A4 - Method and apparatus for treating lime slurry for grit removal - Google Patents

Method and apparatus for treating lime slurry for grit removal

Info

Publication number
EP1879675A4
EP1879675A4 EP06749528A EP06749528A EP1879675A4 EP 1879675 A4 EP1879675 A4 EP 1879675A4 EP 06749528 A EP06749528 A EP 06749528A EP 06749528 A EP06749528 A EP 06749528A EP 1879675 A4 EP1879675 A4 EP 1879675A4
Authority
EP
European Patent Office
Prior art keywords
lime slurry
grit removal
treating lime
treating
grit
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Withdrawn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
EP06749528A
Other languages
German (de)
French (fr)
Other versions
EP1879675A2 (en
Inventor
Paul G Christy
Michael Quici
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.)
RDP Co
Original Assignee
RDP Co
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 claimed from US11/106,068 external-priority patent/US8133401B2/en
Application filed by RDP Co filed Critical RDP Co
Publication of EP1879675A2 publication Critical patent/EP1879675A2/en
Publication of EP1879675A4 publication Critical patent/EP1879675A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2/00—Lime, magnesia or dolomite
    • C04B2/02—Lime
    • C04B2/04—Slaking
    • C04B2/045—After-treatment of slaked lime
    • 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
    • B01D21/2461—Positive-displacement pumps; Screw feeders; Trough conveyors
    • 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
    • B01D21/2488—Feed or discharge mechanisms for settling tanks bringing about a partial recirculation of the liquid, e.g. for introducing chemical aids
    • 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
    • B01D21/34—Controlling the feed distribution; Controlling the liquid level ; Control of process parameters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Paper (AREA)
EP06749528A 2005-04-14 2006-04-06 Method and apparatus for treating lime slurry for grit removal Withdrawn EP1879675A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/106,068 US8133401B2 (en) 2005-04-14 2005-04-14 Method and apparatus for treating lime slurry for grit removal
US11/278,233 US7416673B2 (en) 2005-04-14 2006-03-31 Method and apparatus for treating lime slurry for grit removal
PCT/US2006/013074 WO2006113176A2 (en) 2005-04-14 2006-04-06 Method and apparatus for treating lime slurry for grit removal

Publications (2)

Publication Number Publication Date
EP1879675A2 EP1879675A2 (en) 2008-01-23
EP1879675A4 true EP1879675A4 (en) 2010-12-22

Family

ID=37115651

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06749528A Withdrawn EP1879675A4 (en) 2005-04-14 2006-04-06 Method and apparatus for treating lime slurry for grit removal

Country Status (4)

Country Link
EP (1) EP1879675A4 (en)
AU (1) AU2006236872B2 (en)
CA (1) CA2604908C (en)
WO (1) WO2006113176A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8133401B2 (en) * 2005-04-14 2012-03-13 Rdp Company Method and apparatus for treating lime slurry for grit removal
US9650293B2 (en) 2010-03-05 2017-05-16 Rdp Technologies, Inc. Process and apparatus for slaking lime and dissolving scale
US9023312B2 (en) 2010-03-05 2015-05-05 Rdp Technologies, Inc. Process and apparatus for slaking lime and dissolving scale
US9688547B2 (en) * 2011-06-22 2017-06-27 RPD Technologies, Inc. Method and apparatus for filtration of lime-treated water
US9169147B2 (en) * 2011-11-22 2015-10-27 Rdp Technologies, Inc. Precision lime stabilization system and method for treatment of sewage sludge
BR112021018936A2 (en) 2019-03-28 2021-11-30 Nbot Systems LLC System
CN110193218B (en) * 2019-06-28 2021-07-20 水利部交通运输部国家能源局南京水利科学研究院 Precipitation tank scale control method and device of rainfall flood resource underground water recharging system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4416764A (en) * 1980-11-28 1983-11-22 Natomas Energy Company Method and appratus for extracting tar sand
US4482528A (en) * 1983-01-10 1984-11-13 Envirotech Corporation Lime slaking and grit removal process utilized in SO2 removal
US5368731A (en) * 1993-10-04 1994-11-29 Dorr-Oliver Incorporated Vacuum assisted slaker classifier

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4588559A (en) * 1983-01-10 1986-05-13 Envirotech Corporation Lime slaking system including a cyclone and classifier for separating calcium hydroxide and grit particles from a slurry thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4416764A (en) * 1980-11-28 1983-11-22 Natomas Energy Company Method and appratus for extracting tar sand
US4482528A (en) * 1983-01-10 1984-11-13 Envirotech Corporation Lime slaking and grit removal process utilized in SO2 removal
US5368731A (en) * 1993-10-04 1994-11-29 Dorr-Oliver Incorporated Vacuum assisted slaker classifier

Also Published As

Publication number Publication date
CA2604908A1 (en) 2006-10-26
CA2604908C (en) 2013-06-18
WO2006113176A2 (en) 2006-10-26
AU2006236872A1 (en) 2006-10-26
AU2006236872B2 (en) 2011-08-11
EP1879675A2 (en) 2008-01-23
WO2006113176A3 (en) 2009-04-30

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Legal Events

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