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    PROCEDE DE CUISSON DU GYPSE ET FOUR POUR SA MISE EN OEUVRE
    3.
    发明授权
    PROCEDE DE CUISSON DU GYPSE ET FOUR POUR SA MISE EN OEUVRE 失效
    方法燃烧石膏和烤箱的用于实施该方法

    公开(公告)号：EP0655990B2

    公开(公告)日：2000-10-18

    申请号：EP93919388.4

    申请日：1993-08-16

    申请人： M 2 G S.A.

    发明人： MACE, Patrick

    IPC分类号： C04B11/028 ,  F27B7/20 ,  F27B7/24

    CPC分类号： C04B11/02 ,  F27B7/06 ,  F27B7/08 ,  F27B7/14 ,  F27D2019/0009 ,  C04B11/028

    摘要： Process for baking gypsum under superheated steam conditions consisting in stirring the charge in a rotary horizontal cylindrical oven and independently adjusting oven chamber pressure and temperature according to the temperature of the gypsum, the ambient temperature and pressure in said chamber and the charge's mass. The baking process according to the invention provides a high quality beta semihydrate-type plaster with a treatment cycle of less than one hour, and also provides all types of plasters, especially a blend of beta semihydrate and anhydrite II. The oven for carrying out said process includes means for sealing off its ends so that treatment can be carried out under controlled pressure. It also includes at its outlet, a sealed housing (19) with facilities (43) for receiving temperature and pressure sensors and especially a pyrometer (42) inserted into the central part of the oven to monitor the charge's temperature. At the same time that they monitor temperature and pressure, the sensors (13) indicate the evolution of the mass of the charge to be treated. A computer analyzes and processes all this data, adjusting oven chamber pressure and temperature as required, especially according to the type of plaster desired.

    KALZINIERANLAGE UND VERFAHREN ZUM KALZINIEREN
    4.
    发明公开
    KALZINIERANLAGE UND VERFAHREN ZUM KALZINIEREN 审中-公开
    煅烧厂和方法煅烧

    公开(公告)号：EP3176527A1

    公开(公告)日：2017-06-07

    申请号：EP16201039.1

    申请日：2016-11-29

    申请人： Claudius Peters Projects GmbH

    发明人： Göcke, Volker

    IPC分类号： F27D19/00 ,  B01J6/00 ,  C04B11/028 ,  F27D17/00

    CPC分类号： F27D19/00 ,  B01J6/004 ,  C04B11/028 ,  F27D17/004 ,  F27D2019/0006

    摘要： Die Erfindung betrifft eine Kalzinieranlage und ein Verfahren zur Kalzinierung von pulverförmigen oder feinkörnigen Gut.
    Die erfindungsgemäße Kalzinieranlage (1) für pulverförmiges oder feinkörniges Gut umfasst einen Kalzinierreaktor (2) und einen Heißgaserzeuger (4), wobei die Kalzinieranlage (1) derart ausgestaltet ist, dass vom Heißgaserzeuger (4) erzeugtes heißes Gas als Kalziniergas durch den Kalzinierreaktor (2) geführt und wenigstens ein Teil des durch den Kalzinierreaktor geführten Kalziniergases als Rezirkulationsgas zum Heißgaserzeuger (4) zurückgeführt wird. Der Heißgaserzeuger (4) ist dabei ein Heizbrenner (16) mit über eine Steuerungseinheit (20) einstellbarem Verbrennungsluftverhältnis. Weiterhin ist ein Sensor (22) zur Messung des Feuchtigkeitsgehalt des heißen Gases, des Kalziniergases oder des Rezirkulationsgases vorgesehen und mit der Steuerungseinheit (20) verbunden, und wobei die Steuerungseinheit (20) zur Regelung des Feuchtigkeitsgehalt des heißen Gases, des Kalziniergases oder des Rezirkulationsgases über Anpassung des Verbrennungsluftverhältnisses des Heizbrenner (16) ausgebildet ist.
    Das Verfahren zur Kalzinierung von pulverförmigen oder feinkörnigen Gut betrifft den Betrieb der erfindungsgemäßen Kalzinieranlage (1).

    METHOD AND SYSTEM FOR MULTI-STAGE CALCINING OF GYPSUM TO PRODUCE AN ANHYDRITE PRODUCT
    6.
    发明公开
    METHOD AND SYSTEM FOR MULTI-STAGE CALCINING OF GYPSUM TO PRODUCE AN ANHYDRITE PRODUCT 失效
    用于石膏的多级煅烧以生产贱金属产品的方法和系统

    公开(公告)号：EP0844987A1

    公开(公告)日：1998-06-03

    申请号：EP96928035.0

    申请日：1996-08-07

    申请人： UNITED STATES GYPSUM COMPANY

    发明人： CLOUD, Michael, L. ,  MOORE, Kirk, S.

    IPC分类号： C04B11 ,  F27B15

    CPC分类号： F28D13/00 ,  C04B11/028 ,  F27B15/00 ,  F27B15/10 ,  F28D7/024 ,  C04B11/05

    摘要： Disclosed is a method and system for calcining gypsum to recover gypsum in a form consisting essentially of calcium sulfate anhydrite is disclosed. The method includes the steps of feeding the ground gypsum material (20) by way of a conveyor (18) into a first kettle (11) and heating the ground gypsum to a temperature preferably below 400 °F. The ground gypsum is then overflowed through an overflowed through an overflow tube (26) into a second kettle (12) and heated to a temperature of between 500 to 800 degrees F. The ground gypsum is then overflowed through an overflow tube (26) into a second kettle (12) and heated to a temperature of between 500 to 800 degrees F. The ground gypsum is then overflowed through through another overflow tube (27) into a third kettle (13) and heated to a final temperature of at least 900 degrees F to produce an anhydrite product.

    摘要翻译： 公开了煅烧石膏以回收基本上由硫酸钙无水石膏组成的形式的石膏的方法和系统。 该方法包括通过输送机（18）将磨碎的石膏材料（20）送入第一釜（11）并将磨碎的石膏加热至优选低于400℉的温度的步骤。 然后将磨碎的石膏通过溢流管（26）溢流到第二个釜（12）中并加热到500-800°F的温度。然后将磨碎的石膏通过溢流管（26）溢流到 第二个釜（12）并加热到500-800°F的温度。然后将磨碎的石膏通过另一个溢流管（27）溢出到第三个釜（13）中并加热到至少900 华氏度以生产硬石膏产品。

    PROCEDE ET INSTALLATION DE TRAITEMENT D'UNE MATIERE PULVERULENTE A BASE DE SULFATE DE CALCIUM, NOUVEAU LIANT HYDRAULIQUE
    7.
    发明公开
    PROCEDE ET INSTALLATION DE TRAITEMENT D'UNE MATIERE PULVERULENTE A BASE DE SULFATE DE CALCIUM, NOUVEAU LIANT HYDRAULIQUE 失效
    方法和一种用于治疗硫酸钙粉状材料，新水硬性胶凝材料

    公开(公告)号：EP0824506A1

    公开(公告)日：1998-02-25

    申请号：EP96915080.0

    申请日：1996-04-24

    申请人： Dussel, Christian

    发明人： Dussel, Christian

    IPC分类号： C04B11 ,  C04B28 ,  F27B9

    CPC分类号： C04B11/028 ,  C04B11/05 ,  F27B9/2453 ,  C04B11/032

    摘要： A method for processing a pulverulent calcium sulphate material in order to obtain a hydraulic binder is described, including combining the following two successive processing steps: (a) heating the pulverulent material in a curing tunnel (1) at a temperature of 220-360 °C, under conditions suitable for primarily forming an α-type calcium sulphate, and (b) subjecting the heated material to a thermal quenching step in a cooling apparatus (2), with a cold, dry gas to stabilise the α anhydrite and to prevent its conversion into other crystallographic types. The method provides a novel hydraulic binder with an α anhydrite content of more than 35 wt.%, and with improved strength and behaviour in fire resistance properties.

    Vacuum dehydrating system and dehydrating method for gypsum slurry
    9.
    发明公开
    Vacuum dehydrating system and dehydrating method for gypsum slurry 审中-公开
    VocumentwässerungssystemundEntwässerungsverfahrenfürGipsschlämme

    公开(公告)号：EP2289850A1

    公开(公告)日：2011-03-02

    申请号：EP09172887.3

    申请日：2009-10-13

    申请人： Shanghai Clyde Bergemann Machinery Co., Ltd.

    发明人： Xin, Yueqi ,  Wen, Handong

    IPC分类号： C01F11/46 ,  C04B11/02

    CPC分类号： C04B11/264 ,  C04B11/02 ,  C04B11/028

    摘要： The invention provides a vacuum dehydrating system for gypsum slurry, comprising a vacuum dehydrating apparatus, a first water supply apparatus for supplying filter cake washing water to the vacuum dehydrating apparatus, and a water heating apparatus for heating the filter cake washing water. The invention also provides a vacuum dehydrating method, comprising the following steps:
    1) heating the filter cake washing water by the water heating apparatus;
    2) supplying the heated filter cake washing water to a vacuum dehydrating apparatus during dehydrating the gypsum slurry by the vacuum dehydrating apparatus. In the invention, the filter cake washing water is heated. Due to the higher temperature of filter cake washing water, the dehydration rate of gypsum slurry is improved so that water content of gypsum filter cake after dehydration is decreased.

    摘要翻译： 本发明提供了一种用于石膏浆料的真空脱水系统，包括真空脱水装置，用于向真空脱水装置供给滤饼洗涤水的第一供水装置和用于加热滤饼洗涤水的水加热装置。 本发明还提供一种真空脱水方法，包括以下步骤：1）通过水加热装置加热滤饼洗涤水; 2）在通过真空脱水装置脱水石膏浆料的过程中，将加热后的滤饼洗涤水供给真空脱水装置。 在本发明中，将滤饼洗涤水加热。 由于滤饼洗涤水的温度较高，石膏浆的脱水率提高，脱水后石膏滤饼含水量降低。