DK1971813T3 - System og fremgangsmåde til produktion af alfa-type-gips ved anvendelse af varmegenvinding - Google Patents

System og fremgangsmåde til produktion af alfa-type-gips ved anvendelse af varmegenvinding Download PDF

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Publication number
DK1971813T3
DK1971813T3 DK07709714.5T DK07709714T DK1971813T3 DK 1971813 T3 DK1971813 T3 DK 1971813T3 DK 07709714 T DK07709714 T DK 07709714T DK 1971813 T3 DK1971813 T3 DK 1971813T3
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Denmark
Prior art keywords
gypsum
slurry
heated
condensate
alpha
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DK07709714.5T
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English (en)
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John College
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Certainteed Gypsum Inc
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    • 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
    • C01F11/466—Conversion of one form of calcium sulfate to another
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/18—Stationary reactors having moving elements inside
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/18—Stationary reactors having moving elements inside
    • B01J19/1862—Stationary reactors having moving elements inside placed in series
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/18—Stationary reactors having moving elements inside
    • B01J19/22—Stationary reactors having moving elements inside in the form of endless belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/26—Nozzle-type reactors, i.e. the distribution of the initial reactants within the reactor is effected by their introduction or injection through nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B15/00—General arrangement or layout of plant ; Industrial outlines or plant installations
    • 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
    • C04B11/02—Methods and apparatus for dehydrating gypsum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
    • F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
    • F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/001—Heating arrangements using waste heat
    • F26B23/002—Heating arrangements using waste heat recovered from dryer exhaust gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00002—Chemical plants
    • B01J2219/00004—Scale aspects
    • B01J2219/00006—Large-scale industrial plants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/18—Details relating to the spatial orientation of the reactor
    • B01J2219/185—Details relating to the spatial orientation of the reactor vertical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/19—Details relating to the geometry of the reactor
    • B01J2219/194—Details relating to the geometry of the reactor round
    • B01J2219/1941—Details relating to the geometry of the reactor round circular or disk-shaped
    • B01J2219/1943—Details relating to the geometry of the reactor round circular or disk-shaped cylindrical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B19/00—Machines or methods for applying the material to surfaces to form a permanent layer thereon
    • B28B19/0092—Machines or methods for applying the material to surfaces to form a permanent layer thereon to webs, sheets or the like, e.g. of paper, cardboard
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00017—Aspects relating to the protection of the environment
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
    • C04B2111/0062—Gypsum-paper board like materials
    • 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
    • C04B2290/00—Organisational aspects of production methods, equipment or plants
    • C04B2290/20—Integrated combined plants or devices, e.g. combined foundry and concrete plant
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Sustainable Development (AREA)
  • Materials Engineering (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Producing Shaped Articles From Materials (AREA)

Claims (9)

1. System til produktion af alfa-type-gips på pladefabrikker, hvor gipsen produceres ved anvendelse af varmegenvinding, hvilket system omfatter: et pladetørreanlæg 22, der indbefatter et transportbånd og et varmeelement, hvor et antal gipsplader transporteres og opvarmes til derved fjernelse af overskydende fugt fra gipspladerne, hvilket pladetørreanlæg 22 indbefatter en eller flere skorstene 24 til muliggørelse af, at overskydende fugt fra gipspladerne kan fjernes fra pladetørreanlægget 22 som damp; en kondensator 26, der er forbundet med en af skorstenene 24 på pladetørreanlægget 22, hvilken kondensator 26 anvender et kølemiddel til nedkøling af dampen i skorstenen til frembringelse af et opvarmet kondensat; en blandingstank 28, der er i forbindelse med kondensatoren 26, hvor opvarmet kondensat fra kondensatoren blandes med rå gips til frembringelse en opvarmet gipsopslemning; en autoklave 38, der er i forbindelse med blandingstanken 28, til processering af den opvarmede gipsopslemning fra blandingstanken 28, hvilken autoklave 38 trykker og opvarmer gipsopslemningen, hvorved gipsopslemningen kalcineres til opnåelse af alfa-type-gips og damp, hvilken gips anvendes til produktion af gipsplader, hvor der opnås en energibesparelse ved anvendelse af en opvarmet gipsopslemning i autoklaven 38.
2. System til produktion af alfa-type-gips på pladefabrikker ifølge krav 1, hvor kondensattemperaturen ligger inden for det omtrentlige interval 76 °C til 88 °C; og kondensatet fra kondensatoren 26 blandes med en kombination af rå gips og fugt i et 50:50-vægtforhold til frembringelse af gipsopslemningen med en temperatur inden for det omtrentlige interval 60 °C til 72 °C; en pumpe 34 til fremføring af en portion af gipsopslemningen fra blandingstanken 28 til kondensatoren 26, hvor gipsopslemningen anvendes som kølemiddel til frembringelse af kondensat; °g gipsopslemningen kalcineres til opnåelse af en alfa-type-gips og damp, hvor alfa-type-gipsen anvendes til produktion af gipsplader, og hvor dampen, der dannes fra produktionen af alfa-type-gipsen fremføres til blandingstanken til yderligere forøgelse af temperaturen i opslemningen til det omtrentlige interval 76 °C til 88 °C.
3. System ifølge krav 1, der yderliger omfatter en pumpe 34 til fremføring af en portion af gipsopslemningen fra blandingstanken 28 til kondensatoren 26, hvor gipsopslemningen anvendes som kølemiddel til frembringelse af kondensat.
4. System ifølge krav 1 hvor damp, der udluftes fra produktionen af alfa-type-gipsen, fremføres til blandingstanken 28 til yderligere forøgelse af temperaturen i opslemningen.
5. System ifølge krav 1 hvor kalcineringer i autoklaven 38 frembringer en alfa-type-gips.
6. System ifølge krav 1, hvor tilsætning af opvarmet kondensat til blandingstanken 28 frembringer en gipsopslemning med en temperatur inden for det omtrentlige interval 60 °C til 72 °C.
7. System ifølge krav 1, hvor befugtet gips og opvarmet kondensat fremføres til blandingstanken 28 i et 50:50- vægtforhold.
8. Fremgangsmåde til produktion af alfa-type-gips, der produceres ved anvendelse af systemet ifølge krav 1, der omfatter: tørring af gipsbaserede byggematerialer til fjernelse af overskydende fugt og opsamling af den overskydende fugt som damp; kondensering af den opsamlede damp til frembringelse af et opvarmet kondensat; blanding af det opvarmede kondensat med rå gips til frembringelse af en opvarmet gipsopslemning; kalcinering af den opvarmede gipsopslemning til opnåelse af alfa-gips og damp.
9. Fremgangsmåde ifølge krav 8, der indbefatter det yderligere trin kondensering af dampen, der dannes fra kalcineringstrinet, til frembringelse af et opvarmet kondensat og blanding af det opvarmede kondensat med den rå gips til yderligere forøgelse af temperaturen af gipsopslemningen.
DK07709714.5T 2006-01-13 2007-01-12 System og fremgangsmåde til produktion af alfa-type-gips ved anvendelse af varmegenvinding DK1971813T3 (da)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US75879006P 2006-01-13 2006-01-13
US11/653,073 US7498014B2 (en) 2006-01-13 2007-01-12 System and method for the production of alpha type gypsum using heat recovery
PCT/US2007/000780 WO2007084346A2 (en) 2006-01-13 2007-01-12 System and method for the production of alpha type gypsum using heat recovery

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DK1971813T3 true DK1971813T3 (da) 2016-09-19

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US (2) US7498014B2 (da)
EP (1) EP1971813B1 (da)
CA (1) CA2636351C (da)
DK (1) DK1971813T3 (da)
ES (1) ES2590560T3 (da)
HU (1) HUE029576T2 (da)
PL (1) PL1971813T3 (da)
WO (1) WO2007084346A2 (da)

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US7498014B2 (en) 2009-03-03
EP1971813A4 (en) 2011-10-05
US20070172413A1 (en) 2007-07-26
CA2636351A1 (en) 2007-07-26
EP1971813A2 (en) 2008-09-24
WO2007084346A2 (en) 2007-07-26
HUE029576T2 (en) 2017-03-28
PL1971813T3 (pl) 2017-01-31
US20090308284A1 (en) 2009-12-17
EP1971813B1 (en) 2016-06-15
WO2007084346A3 (en) 2007-12-21
CA2636351C (en) 2014-04-15
ES2590560T3 (es) 2016-11-22
US7955587B2 (en) 2011-06-07

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