METHOD FOR PRODUCING AN ANHYDRITE III OR alpha BASED HYDRAULIC BONDING AGENT
    11.
    发明申请
    METHOD FOR PRODUCING AN ANHYDRITE III OR alpha BASED HYDRAULIC BONDING AGENT 审中-公开
    用于生产无水III或基于α的液压粘结剂的方法

    公开(公告)号:WO00047531A1

    公开(公告)日:2000-08-17

    申请号:PCT/FR1999/000312

    申请日:1999-02-12

    CPC classification number: C04B11/05

    Abstract: A method for synthesizing a natural calcium sulfate based hydraulic bonding agent (gypsum), whereby the calcium sulfate is heated to obtain a high proportion of anhydrite III or alpha and thermal dipping occurs. Said method consists in the following : the calcium sulfate is completely dehydrated and the matter thus dehydrated is cooled in a brutal manner. Preferably, the present invention can be used in the construction industry in order to obtain a hydraulic bonding agent that can be used as cement.

    Abstract translation: 合成天然硫酸钙基水硬性粘合剂(石膏)的方法,由此硫酸钙被加热以获得高比例的无水石膏III或α并发生热浸渍。 所述方法如下:硫酸钙完全脱水,因此脱水的物质以残酷的方式冷却。 优选地,本发明可用于建筑工业中以获得可用作水泥的液压粘合剂。

    A PROCESS FOR THE CONTINUOUS PREPARATION OF ALPHA-CALCIUM SULPHATE HEMIHYDRATE AND A PARTICULATE GYPSUM

    公开(公告)号:WO2022194499A1

    公开(公告)日:2022-09-22

    申请号:PCT/EP2022/054409

    申请日:2022-02-22

    Abstract: The present application describes a process for the continuous production of alpha- calcium sulphate hemihydrate, the process comprising the steps of: providing particulate gypsum; providing water; mixing the particulate gypsum and the water to form a gypsum slurry; and maintaining said gypsum slurry under raised pressure and temperature to convert the particulate gypsum into alpha-calcium sulphate hemihydrate and provide an alpha-calcium sulphate hemihydrate slurry. Additionally, the particulate gypsum comprises a D10 value greater than or equal to 2 μm, a D90 value smaller than or equal to 90 pm and a D50 value smaller than or equal to 25 μm. Particulate gypsum for use in the process is also provided.

    INDUSTRIAL CALCINATION APPARATUS
    13.
    发明申请

    公开(公告)号:WO2022157072A1

    公开(公告)日:2022-07-28

    申请号:PCT/EP2022/050685

    申请日:2022-01-13

    Abstract: The present application describes an industrial calciner for particulate material, wherein the industrial calciner comprises: a calcination vessel; and a gas supply system in fluid communication with the calcination vessel, the gas supply system configured to supply a flow of calcination gas to the calcination vessel, wherein the industrial calciner further comprises at least one electric heater configured to heat the calcination gas, the industrial calciner further comprising at least one humidity modifier and a humidity control system for controlling the output of the at least one humidity modifier. Use of the industrial calciner and a method of calcining particulate material with the industrial calciner are also described.

    PLANT FOR HYDROTHERMALLY TREATING AND DRYING PLASTER STONE
    15.
    发明申请
    PLANT FOR HYDROTHERMALLY TREATING AND DRYING PLASTER STONE 审中-公开
    水处理和干燥塑料石材厂

    公开(公告)号:WO2006062383A1

    公开(公告)日:2006-06-15

    申请号:PCT/LV2005/000013

    申请日:2005-12-07

    CPC classification number: C04B11/0282 F26B5/04

    Abstract: The invention relates to the building material and binder industry and is used for producing high-strength alpha-semihydrate and alpha-anhydrite gypsum binders. The inventive device for hydrothermally treating and drying plaster stone comprises a working chamber-autoclave (1) provided with a hot heat-carrier supply system, a vacuum receiver (41), a vacuum pump (42), a gas-distributing manifolds and rapid-acting dampers (11, 13, 15, 17). Said plant also comprises an even number of gas- distributing segmental sections (3) which are symmetrically arranged with respect to the vertical axis of the working chamber and are separated from each other by a vertical tight partition (4), wherein vertical rectangular walls (5) separating the gas-distributing sections (3) from the service volume of the working chamber (1) are provided with a perforation increasing the flow through cross-section of gas windows from the top downward along the wall height. Each gas-distributing section (3) is connected to a gas-intake pipe (6) provided with an adjustable gas shut-off gate (7). All gas-intake pipes (6) are connected to symmetrical gas-distributing pipes (8) which are provided with adjustable gas gates (9) connected in the mid-length thereof to pipes (10) comprising rapid-acting dampers (11).

    Abstract translation: 本发明涉及建筑材料和粘合剂工业,并且用于生产高强度α-半水合物和α-无水石膏石膏粘合剂。 用于水热处理和干燥石膏的本发明装置包括设置有热热载体供应系统的工作室 - 高压釜(1),真空接收器(41),真空泵(42),气体分配歧管和快速 (11,13,15,17)。 所述设备还包括偶数个气体分配节段(3),其相对于工作室的垂直轴线对称布置,并且通过垂直的紧密隔板(4)彼此分开,其中垂直矩形壁( 5)将气体分配部分(3)与工作室(1)的使用体积分开设置有穿孔,从而从顶部向下沿着壁高度增加气体窗口横截面的流动。 每个气体分配部分(3)连接到设置有可调气体切断门(7)的进气管(6)。 所有进气管道(6)连接到对称的气体分配管道(8),其配有可调节气门(9),其中长度连接到包括快速作用阻尼器(11)的管道(10)。

    A PROCESS AND APPARATUS FOR TREATING PARTICULATE MATTER
    16.
    发明申请
    A PROCESS AND APPARATUS FOR TREATING PARTICULATE MATTER 审中-公开
    一种处理颗粒物的方法和装置

    公开(公告)号:WO99016541A1

    公开(公告)日:1999-04-08

    申请号:PCT/GB1998/002924

    申请日:1998-09-29

    Abstract: The present invention provides a process for treating a particulate material, in which particles of the material to be treated interact with non-static particles of a second material, the process comprising the steps of: (i) providing a processing chamber (1) having an inlet (7) and an outlet (10) spaced downstream therefrom, the base (15) of said chamber comprising a plurality of outwardly radiating inclined vanes (20, 25), (ii) providing a host bed of particles (30) in the chamber (1) and generating a flow of fluid through the vanes (20, 25) at the base (15) of the processing chamber such that the bed of host particles (30) circulates about an axis (102) of the chamber in a compact band, (iii) injecting particles of the material to be treated through an inlet (5) of the chamber (1) to contact with the circulating bed of the host particles (30), wherein the relative terminal velocity of the particles to be treated (45) and the host particles (30) is such that there is little or substantially no migration of the host particls to the outlet (10), and wherein substantially all of the particles of the material to be treated migrate downstream through the circulating host particles to the outlet (10).

    Abstract translation: 本发明提供了一种处理颗粒材料的方法,其中待处理材料的颗粒与第二材料的非静态颗粒相互作用,该方法包括以下步骤:(i)提供处理室(1),其具有 入口(7)和与其间隔开的出口(10),所述腔室的基部(15)包括多个向外辐射的倾斜叶片(20,25),(ii)提供颗粒(30)的主体床 所述腔室(1)并且通过处理室的基部(15)处的叶片(20,25)产生流体流,使得主体颗粒床(30)围绕腔室的轴线(102)循环 (iii)通过所述腔室(1)的入口(5)将待处理材料的颗粒注入以与所述主体颗粒(30)的循环床接触,其中所述颗粒的相对末端速度 被处理(45)和主体颗粒(30)使得存在很少或次要的 宿主颗粒不会迁移到出口(10),并且其中待处理材料的基本上所有的颗粒通过循环主体颗粒向下游流到出口(10)。

    METHOD AND APPARATUS FOR CONTINUOUS REFRACTORYLESS CALCINING OF GYPSUM
    17.
    发明申请
    METHOD AND APPARATUS FOR CONTINUOUS REFRACTORYLESS CALCINING OF GYPSUM 审中-公开
    连续无菌计算的方法和装置

    公开(公告)号:WO1996023741A1

    公开(公告)日:1996-08-08

    申请号:PCT/US1996001631

    申请日:1996-02-01

    Abstract: A method and apparatus is disclosed for the continuous calcining of gypsum material in a high-efficiency, refractoryless kettle preferably heated by a multiple series of separate immersion tube burner coils, each coil operating within a specific calcining zone inside the kettle. The lowest, i.e., initial, burner tube coil is formed with a low profile to permit use of a small initial gypsum charge, and hence, a quick kettle start-up cycle. That low profile initial burner design also helps keep the agitator motor's load at a minimum during cycle start-up. Due to the immersion tube burner coil construction, no refractory structure for the kettle is required. Also, no separate hot pit structure is required, as the kettle is used to merely hold the material being calcined and no residual heat is present. A relatively thin kettle can be constructed, as it needs only withstand relatively low operating temperatures. The kettle's staged, interiorly-disposed burner tube coils act to directly transfer burner tube heat to the kettle's contents, and the coils exhaust exteriorly of the kettle. The present calcining method and apparatus permit substantially improved tonnage output of calcined material, for a kettle of a given size. A modification to the present apparatus includes structure for recovering and recycling a portion of the spent burner gases, and also separate structure for forced aeration air, both preferably for introduction through the kettle bottom. One alternate embodiment concerns a differently-shaped kettle design. Another alternate embodiment concerns a modified kettle which uses a single immersion burner tube coil to provide the total heating of the kettle's contents, for use in certain calcining applications.

    Abstract translation: 公开了一种方法和装置,其用于在高效率,无温度的釜中连续煅烧石膏材料,优选由多系列分开的浸入管燃烧器线圈加热,每个线圈在壶内的特定煅烧区域内操作。 最低的,即初始的燃烧器管线圈形成为低轮廓,以允许使用小的初始石膏装料,因此使用快速水壶启动循环。 这种低调的初始燃烧器设计还有助于在循环启动期间将搅拌器电机的负载保持在最小值。 由于浸入管燃烧器线圈结构,不需要锅的耐火结构。 另外,不需要单独的热坑结构,因为水壶仅用于保持正在煅烧的材料,并且不存在余热。 可以构造相对薄的水壶,因为它只需要承受较低的工作温度。 水壶的分级内部燃烧器管线圈用于将燃烧器管的热量直接传递到水壶的内容物,并且线圈在水壶的外部排出。 现有的煅烧方法和装置允许对于给定尺寸的釜,煅烧材料的吨位输出显着提高。 对本装置的改进包括用于回收和再循环一部分废燃烧器气体的结构,以及用于强制充气空气的分离结构,优选用于通过釜底引入。 一个替代实施例涉及不同形状的壶设计。 另一个替代实施例涉及一种改进的水壶,其使用单个浸入式燃烧器管线圈来提供釜的内容物的总体加热,用于某些煅烧应用。

    石膏の加熱方法、石膏の加熱装置および石膏の製造方法
    18.
    发明申请
    石膏の加熱方法、石膏の加熱装置および石膏の製造方法 审中-公开
    GYPSUM加热方法,GYPSUM加热装置和GYPSUM制造方法

    公开(公告)号:WO2017047467A1

    公开(公告)日:2017-03-23

    申请号:PCT/JP2016/076287

    申请日:2016-09-07

    CPC classification number: C04B11/02 C04B11/028 F26B17/32

    Abstract: 乾燥焼成能力を向上させて、石膏の大量処理を容易にするとともに、小型化を可能にする石膏の加熱方法、石膏の加熱装置および石膏の製造方法を提供する。 そのために、加熱装置を用いて、石膏を加熱する方法であって、式1、式2で定められる臨界速度比αが15~70%未満となるように、回転筒を回転して、石膏を加熱する。Vc=2.21D1/2 ・・・式1 α=V/Vc・100 ・・・式2 ここに、Vcは回転筒の臨界速度(m/s)、Dは回転筒の内径(m)、αは回転筒の臨界速度比(%)、Vは回転筒の回転速度(m/s)である。

    Abstract translation: [问题]为了提供石膏加热方法,石膏加热装置和改善干燥焙烧性能的石膏制造方法,简化了石膏的大规模加工,并且小型化是可能的。 [方案]通过使用加热装置来加热石膏的方法,其中旋转圆筒旋转,使得由式1和式2定义的临界速度比α达到至少15%且小于70%,并且将石膏加热 。 公式1:Vc = 2.21D1 / 2公式2:α= V / Vc·100在公式中,Vc是旋转圆筒的临界速度(m / s),D是旋转圆筒的内径(m) ,α是旋转圆筒的临界速度比(%),V是旋转圆筒的转速(m / s)。

    SYSTEM AND METHOD FOR CALCINING GYPSUM
    19.
    发明申请
    SYSTEM AND METHOD FOR CALCINING GYPSUM 审中-公开
    用于计算GYPSUM的系统和方法

    公开(公告)号:WO2011016912A1

    公开(公告)日:2011-02-10

    申请号:PCT/US2010/039564

    申请日:2010-06-23

    CPC classification number: C04B11/0286 F27B15/006 C04B11/26

    Abstract: A system (100) for calcining natural gypsum, synthetic gypsum (112) or a combination thereof, the system including: a mill (114) for grinding and drying natural gypsum, synthetic gypsum (112) or a combination thereof, to produce dried gypsum (116); a flash calciner (118) for calcining the dried gypsum to produce an exhaust gas (130) and calcined gypsum (128); and a mechanism (134) for transporting at least a portion of the exhaust gas (130) produced by the flash calciner (118) to an air heater (126) that supplies hot gas (126a) to the flash calciner (118).

    Abstract translation: 一种用于煅烧天然石膏,合成石膏(112)或其组合的系统(100),所述系统包括:用于研磨和干燥天然石膏的粉碎机(114),合成石膏(112)或其组合,以产生干燥的石膏 (116); 用于煅烧干燥的石膏以产生废气(130)和煅烧石膏(128)的闪蒸煅烧器(118); 以及用于将由闪速煅烧器(118)产生的废气(130)的至少一部分输送到将热气体(126a)供应到闪速煅烧器(118)的空气加热器(126)的机构(134)。

    VERFAHREN ZUR HERSTELLUNG VON ALPHA-CALCIUMSULFAT-HALBHYDRAT AUS CALCIUMSULFAT-DIHYDRAT
    20.
    发明申请
    VERFAHREN ZUR HERSTELLUNG VON ALPHA-CALCIUMSULFAT-HALBHYDRAT AUS CALCIUMSULFAT-DIHYDRAT 审中-公开
    用于生产硫酸ALPHA-钙半水合物OFF硫酸钙二水合物

    公开(公告)号:WO2008141627A1

    公开(公告)日:2008-11-27

    申请号:PCT/DE2008/000854

    申请日:2008-05-20

    CPC classification number: C04B11/032 C04B11/0281

    Abstract: Verfahren zur Herstellung von Alpha-Calciumsulfat-Halbhydrat aus Calcium-Dihydrat mit den folgenden Merkmalen: a) Beschickung eines Rührautoklaven (1) mit Calciumsulfat-Dihydrat, b) indirekte Beheizung des Rührautoklaven (1), c) gesteuerte Zugabe und Einmischung von Wasser, d) Verhinderung von Anbackungen an Flächen des Reaktionsraums durch bewegte, an den Paddeln und/oder der Antriebswelle (16) des Rührautoklaven (1) angebrachte, Ketten (3), e) intervallmäßige oder kontinuierliche Regelung des Drucks im Reaktionsraum durch Dampfabfluss bei dem Erreichen eines bestimmten Drucks im Innenraum, wobei der Dampf über einen Zyklonabscheider (17) und ein Stellventil (18) geführt wird, f) Zufuhr von kalter Luft zur Resttrocknung, g) Entfernen des Prozessgutes, sowie entsprechende Vorrichtung zur Durchführung des Verfahrens.

    Abstract translation: 一种用于从钙二水合物具有下列特征;产生α-半水硫酸钙方法:a)填充到搅拌的高压釜(1)与硫酸钙二水合物,b)将搅拌的高压釜(1)的间接加热,c)中的受控添加和混合的水, d)防止通过移动到搅拌的高压釜(1)附接,链条(3),e)通过在实现蒸气漏极在所述反应室中的压力的​​间隔中度或连续调节的桨和/或所述驱动轴(16)上的反应空间的表面结块的 一定的压力在内部空间中,其特征在于,通过一个旋风分离器(17)和一个控制阀(18)的蒸汽通过,F)供给冷空气的残余干燥,g)除去处理材料,以及相应的装置实施该方法。

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