WO2014141926A1 - Procédé pour produire en continu une suspension concentrée de gypse - Google Patents

Procédé pour produire en continu une suspension concentrée de gypse Download PDF

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Publication number
WO2014141926A1
WO2014141926A1 PCT/JP2014/055309 JP2014055309W WO2014141926A1 WO 2014141926 A1 WO2014141926 A1 WO 2014141926A1 JP 2014055309 W JP2014055309 W JP 2014055309W WO 2014141926 A1 WO2014141926 A1 WO 2014141926A1
Authority
WO
WIPO (PCT)
Prior art keywords
slurry
gypsum
supply port
temperature
wall
Prior art date
Application number
PCT/JP2014/055309
Other languages
English (en)
Japanese (ja)
Inventor
晋吾 平中
多賀　玄治
Original Assignee
株式会社トクヤマ
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 JP2013049788A external-priority patent/JP2016104673A/ja
Priority claimed from JP2013051149A external-priority patent/JP2016104674A/ja
Application filed by 株式会社トクヤマ filed Critical 株式会社トクヤマ
Publication of WO2014141926A1 publication Critical patent/WO2014141926A1/fr

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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
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/10—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/10—Mixing in containers not actuated to effect the mixing
    • B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
    • B28C5/16—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a vertical or steeply inclined axis
    • 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
    • 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

Definitions

  • the subject of the present invention is that when a half-water gypsum powder is continuously added and mixed with water to form a slurry, the growth of scale adhered to the inner wall of the slurry generation tank is prevented, and a gypsum slurry is stably generated. It is to provide a way to do.

Abstract

Dans la présente invention, une poudre de gypse hémihydraté est introduite en continu dans une cuve de génération de suspension concentrée et est mélangée avec de l'eau pour former une suspension concentrée de gypse. À une position plus haute que la surface du liquide au niveau de la paroi interne de la cuve de génération ou l'ouverture d'alimentation de la poudre de gypse hémihydraté, du tartre se forme et des problèmes tels que l'occlusion de l'ouverture d'alimentation surviennent. Lesdits problèmes sont prononcés lorsque la taille de particule de la poudre de gypse hémihydraté est faible. La portion de 50 à 500 mm à partir de l'ouverture d'alimentation de la poudre de gypse hémihydraté ou la portion qui est au niveau de ou au-dessus de la surface de liquide au niveau de la paroi interne de la cuve de génération est chauffée à au moins 40° C, et de préférence au moins 50° C. En conséquence, la condensation au niveau de l'ouverture d'alimentation et similaire est évitée, ce qui évite la formation de tartre.
PCT/JP2014/055309 2013-03-13 2014-03-03 Procédé pour produire en continu une suspension concentrée de gypse WO2014141926A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2013-049788 2013-03-13
JP2013049788A JP2016104673A (ja) 2013-03-13 2013-03-13 半水石膏を原料とした石膏スラリーの製造方法
JP2013-051149 2013-03-14
JP2013051149A JP2016104674A (ja) 2013-03-14 2013-03-14 半水石膏を原料とした二水石膏スラリーの製造方法

Publications (1)

Publication Number Publication Date
WO2014141926A1 true WO2014141926A1 (fr) 2014-09-18

Family

ID=51536596

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2014/055309 WO2014141926A1 (fr) 2013-03-13 2014-03-03 Procédé pour produire en continu une suspension concentrée de gypse

Country Status (1)

Country Link
WO (1) WO2014141926A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016117617A (ja) * 2014-12-22 2016-06-30 株式会社トクヤマ 二水石膏製造装置
JP2016121031A (ja) * 2014-12-24 2016-07-07 株式会社トクヤマ 石膏スラリーの製造方法と製造装置
CN108821620A (zh) * 2018-08-23 2018-11-16 河南绿材节能环保科技有限公司 游离水转晶法生产高强石膏的连续生产设备
EP3643692A1 (fr) 2018-10-23 2020-04-29 Tokuyama Corporation Procede de recyclage de gypse de dihydrate a partir de panneaux de gypse de dechets
WO2022264445A1 (fr) * 2021-06-16 2022-12-22 株式会社トクヤマ Procédé et dispositif pour mélanger des granules de gypse dérivés de plaques de gypse résiduaires et de suspension de gypse
WO2023032232A1 (fr) * 2021-09-02 2023-03-09 株式会社トクヤマ Procédé de cristallisation de plâtre

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06328429A (ja) * 1993-05-26 1994-11-29 Sekisui Chem Co Ltd セメント材料の原料供給装置
JPH0967118A (ja) * 1995-08-28 1997-03-11 Sumitomo Metal Mining Co Ltd 硫酸廃液からの石膏の製造方法
JP2000143239A (ja) * 1998-09-08 2000-05-23 Nippon Mining & Metals Co Ltd 石膏の製造方法
JP2005161300A (ja) * 2003-10-02 2005-06-23 Tokuyama Corp 廃石膏ボードの処理方法
JP2007203539A (ja) * 2006-01-31 2007-08-16 Nippon Oil Corp 硫黄資材融解装置
JP2012250913A (ja) * 2008-07-31 2012-12-20 Yoshino Gypsum Co Ltd 二水石膏の改質方法及び該方法で改質された改質二水石膏

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06328429A (ja) * 1993-05-26 1994-11-29 Sekisui Chem Co Ltd セメント材料の原料供給装置
JPH0967118A (ja) * 1995-08-28 1997-03-11 Sumitomo Metal Mining Co Ltd 硫酸廃液からの石膏の製造方法
JP2000143239A (ja) * 1998-09-08 2000-05-23 Nippon Mining & Metals Co Ltd 石膏の製造方法
JP2005161300A (ja) * 2003-10-02 2005-06-23 Tokuyama Corp 廃石膏ボードの処理方法
JP2007203539A (ja) * 2006-01-31 2007-08-16 Nippon Oil Corp 硫黄資材融解装置
JP2012250913A (ja) * 2008-07-31 2012-12-20 Yoshino Gypsum Co Ltd 二水石膏の改質方法及び該方法で改質された改質二水石膏

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016117617A (ja) * 2014-12-22 2016-06-30 株式会社トクヤマ 二水石膏製造装置
JP2016121031A (ja) * 2014-12-24 2016-07-07 株式会社トクヤマ 石膏スラリーの製造方法と製造装置
CN108821620A (zh) * 2018-08-23 2018-11-16 河南绿材节能环保科技有限公司 游离水转晶法生产高强石膏的连续生产设备
CN108821620B (zh) * 2018-08-23 2024-02-02 湖南金凤凰建材家居集成科技有限公司 游离水转晶法生产高强石膏的连续生产设备
EP3643692A1 (fr) 2018-10-23 2020-04-29 Tokuyama Corporation Procede de recyclage de gypse de dihydrate a partir de panneaux de gypse de dechets
JP2020065965A (ja) * 2018-10-23 2020-04-30 株式会社トクヤマ 廃石膏ボードからの二水石膏の回収方法
US10947155B2 (en) 2018-10-23 2021-03-16 Tokuyama Corporation Recycling method of dihydrate gypsum from waste gypsum boards
JP7121628B2 (ja) 2018-10-23 2022-08-18 株式会社トクヤマ 廃石膏ボードからの二水石膏の回収方法
WO2022264445A1 (fr) * 2021-06-16 2022-12-22 株式会社トクヤマ Procédé et dispositif pour mélanger des granules de gypse dérivés de plaques de gypse résiduaires et de suspension de gypse
WO2023032232A1 (fr) * 2021-09-02 2023-03-09 株式会社トクヤマ Procédé de cristallisation de plâtre

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