IN2014DN07523A - - Google Patents

Info

Publication number
IN2014DN07523A
IN2014DN07523A IN7523DEN2014A IN2014DN07523A IN 2014DN07523 A IN2014DN07523 A IN 2014DN07523A IN 7523DEN2014 A IN7523DEN2014 A IN 7523DEN2014A IN 2014DN07523 A IN2014DN07523 A IN 2014DN07523A
Authority
IN
India
Prior art keywords
gypsum
suspension
hydrocyclone
underflow
thickened
Prior art date
Application number
Inventor
Michael Kramer
Waltl Andreas Gruber
Original Assignee
Andritz Energy & Environment 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 Andritz Energy & Environment Gmbh filed Critical Andritz Energy & Environment Gmbh
Publication of IN2014DN07523A publication Critical patent/IN2014DN07523A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/46—Sulfates
    • C01F11/468—Purification of calcium sulfates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • 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
    • B04C5/02—Construction of inlets by which the vortex flow is generated, e.g. tangential admission, the fluid flow being forced to follow a downward path by spirally wound bulkheads, or with slightly downwardly-directed tangential admission
    • B04C5/04—Tangential inlets
    • 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
    • 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
    • B04C5/24—Multiple arrangement thereof
    • B04C5/26—Multiple arrangement thereof for series flow
    • 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
    • C04B11/00—Calcium sulfate cements
    • C04B11/26—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke
    • C04B11/262—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke waste gypsum other than phosphogypsum
    • C04B11/264—Gypsum from the desulfurisation of flue gases

Abstract

The invention relates to a method for obtaining gypsum using a flue gas desulfurization system (FGD). A gypsum suspension (6) which also contains fine materials such as active carbon particles or residual carbonate particles for example accumulates in the scrubber (17) of a wet flue gas scrubber. The gypsum containing suspension (6) is thickened by means of at least one hydrocyclone (1, 1' ) and the thickened gypsum suspension (6) is discharged via the underflow (11, 11' ) of the hydrocyclone (1, 1'). According to the invention water (5, 5', 15, 15') is fed to the hydrocyclone (1, 1') in addition to the gypsum suspension (6) via a dedicated feed line such that the content of fine material is thus reduced with respect to the suspension volume in the underflow (11, 11' ).
IN7523DEN2014 2012-02-10 2013-02-08 IN2014DN07523A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA176/2012A AT512479B1 (en) 2012-02-10 2012-02-10 PROCESS FOR FINE-REDUCTION IN THE REA-GIPS
PCT/EP2013/000379 WO2013117341A1 (en) 2012-02-10 2013-02-08 Method for reducing the content of fine material in fgd gypsum

Publications (1)

Publication Number Publication Date
IN2014DN07523A true IN2014DN07523A (en) 2015-04-24

Family

ID=47827123

Family Applications (1)

Application Number Title Priority Date Filing Date
IN7523DEN2014 IN2014DN07523A (en) 2012-02-10 2013-02-08

Country Status (16)

Country Link
US (1) US9139449B2 (en)
EP (1) EP2812122B1 (en)
JP (1) JP2015513446A (en)
KR (1) KR101688712B1 (en)
CN (1) CN104093495B (en)
AR (1) AR089942A1 (en)
AT (1) AT512479B1 (en)
AU (1) AU2013218343C1 (en)
CA (1) CA2863996C (en)
CL (1) CL2014002075A1 (en)
IN (1) IN2014DN07523A (en)
PL (1) PL2812122T3 (en)
RU (1) RU2592593C2 (en)
SI (1) SI2812122T1 (en)
WO (1) WO2013117341A1 (en)
ZA (1) ZA201405996B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014100725B3 (en) * 2013-12-23 2014-12-31 Schauenburg Maschinen- Und Anlagen-Bau Gmbh Process for the treatment of ash from waste incineration plants by wet classification
DE102014007746A1 (en) 2014-05-30 2015-12-03 Rwe Power Aktiengesellschaft A process for removing mercury from the scrubbing suspension of a wet scrubber and adsorbent for use in a wet scrubber
AT516734B1 (en) * 2015-04-15 2016-08-15 Andritz Ag Maschf Method for removing mercury from scrubber suspensions
AT516856B1 (en) * 2015-08-21 2016-09-15 Andritz Ag Maschf Hydrocyclone with fines removal in the cyclone underflow
DE102016007548A1 (en) * 2015-11-06 2017-05-11 Hans-Joachim Boltersdorf cyclone system
US11266937B2 (en) * 2017-03-28 2022-03-08 Hewlett-Packard Development Company, L.P. Air flow rates in cyclonic particle separation chambers
WO2020124207A1 (en) * 2018-12-18 2020-06-25 Sepro Mineral Systems Corp. Recovery of material from wet incinerator bottom ash

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US3507397A (en) 1969-04-09 1970-04-21 William R Robinson Hydrocyclone unit
US4253945A (en) * 1979-08-10 1981-03-03 Domtar Inc. High consistency pulp cleaning
GB8327218D0 (en) * 1983-10-12 1983-11-16 Beloit Corp Reject handling in cyclones &c
US4652363A (en) 1984-11-01 1987-03-24 Miller Francis G Dual feed hydrocyclone and method of separating aqueous slurry
US4696737A (en) * 1986-02-28 1987-09-29 The Bauer Bros. Co. Fiber recovery elutriating hydrocyclone
FR2629371B1 (en) 1988-03-29 1991-05-17 Stumm Eric DEVICE FOR DUST COLLECTION OF INDUSTRIAL GASES BY MECHANICAL - PNEUMATIC SEPARATORS
US4969934A (en) 1989-08-04 1990-11-13 The United States Of America As Represented By The United States Department Of Energy Method for improved gas-solids separation
DE4014908A1 (en) * 1990-05-10 1991-11-14 Rwe Energie Ag REgulating purity of gypsum recovered from off-gas of power station - by purifying recovered from the hydrocyclone plant prior to recycling to absorption circuit
DE4029394A1 (en) * 1990-09-17 1992-03-19 Erz & Kohleflotation Gmbh METHOD AND SYSTEM FOR THE TREATMENT OF A WASTE TURBINE RESULTING FROM THE FLUE GAS DESULFURATION IN A REA WASHER AND TO MINIMIZE THE SOLIDS TO BE DEPOSED
DE4034497C1 (en) * 1990-10-30 1992-02-13 Metallgesellschaft Ag, 6000 Frankfurt, De
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US5308509A (en) * 1993-03-08 1994-05-03 The Babcock & Wilcox Company FGD performance enhancement by hydroclone and recycling steps
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EP1069234B1 (en) 1999-07-06 2004-05-26 Voith Paper Patent GmbH Method and device for removing impurities from a hydrocyclone
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Also Published As

Publication number Publication date
AU2013218343A1 (en) 2014-08-21
AU2013218343B2 (en) 2017-01-05
AT512479A1 (en) 2013-08-15
WO2013117341A1 (en) 2013-08-15
CN104093495B (en) 2016-06-08
EP2812122B1 (en) 2015-12-02
JP2015513446A (en) 2015-05-14
CN104093495A (en) 2014-10-08
AR089942A1 (en) 2014-10-01
AU2013218343C1 (en) 2017-05-25
SI2812122T1 (en) 2016-03-31
ZA201405996B (en) 2016-06-29
US20150041374A1 (en) 2015-02-12
EP2812122A1 (en) 2014-12-17
KR101688712B1 (en) 2016-12-21
PL2812122T3 (en) 2016-05-31
CA2863996C (en) 2019-07-09
CA2863996A1 (en) 2013-08-15
US9139449B2 (en) 2015-09-22
RU2014132205A (en) 2016-04-10
CL2014002075A1 (en) 2014-12-05
AT512479B1 (en) 2013-11-15
KR20140133560A (en) 2014-11-19
RU2592593C2 (en) 2016-07-27

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