METHOD AND PLANT FOR DRYING AND COMMINUTION OF MOIST, MINERAL RAW MATERIALS
    1.
    发明授权
    METHOD AND PLANT FOR DRYING AND COMMINUTION OF MOIST, MINERAL RAW MATERIALS 无效
    方法和设备用于干燥和湿式粉碎MINERALROHMATERIALIEN

    公开(公告)号:EP1989156B1

    公开(公告)日:2012-08-15

    申请号:EP06842692.3

    申请日:2006-12-28

    申请人: FLSmidth A/S

    发明人: HUNDEBÖL, Sören

    IPC分类号: C04B7/40 F27B7/20

    摘要: Described is a method as well as a plant for drying and comminution of moist, mineral raw materials, such as chalk, marl and clay, by which method the raw materials are dried and comminuted subject to simultaneous supply of hot gases in a drier crusher (8) from which the material is subsequently directed in suspended form to a separator (11) in which it is separated into a coarse fraction which is returned to the drier crusher (8) for further drying and comminution and into a fine fraction which is directed to the next stage of the process and where any hard material components such as flint, sand and marble are subjected to grinding in a separate grinding unit (16). The method and plant is peculiar in that a part quantity of the coarse fraction from the separator (11) is proportionately fed to the separate grinding unit (16) for the grinding of hard material components. Hence, it will be possible to substantially reduce the specific energy consumption and the CO2 emission from the kiln system due to the elimination of need prior to drying and comminution in the drier crusher to suspend the raw materials in water which must subsequently be removed. This is ascribable to the fact that the hard material components by the method according to this invention will be drained away from the circuit between the drier crusher and the separator. A further advantage of the method according to this invention is the significant reduction achieved in the wear rate of the drier crusher and its energy consumption. Furthermore, it will be possible to produce a raw meal with excellent burning characteristics due to the reduction in the content of coarse silica particles in the raw meal, which in turn will reduce the NOx emission from the kiln.

    Procede de valorisation de boues de dragage et industrielles
    2.
    发明公开
    Procede de valorisation de boues de dragage et industrielles 审中-公开
    Verfahren zur Aufwertung von Bagger- undIndustrieschlämmen

    公开(公告)号:EP1947066A1

    公开(公告)日:2008-07-23

    申请号:EP07447003.0

    申请日:2007-01-17

    申请人: Kreusch, Wilhelm

    发明人: Kreusch, Wilhelm

    IPC分类号: C04B7/24 C04B7/38 C04B7/40

    摘要: La présente invention se rapporte à un procédé de valorisation de boues de dragage et industrielles avec une teneur en eau comprise entre 30 et 80% en poids, dans un procédé de fabrication de ciment dans lequel lesdites boues provenant d'une cuve de récolte sont acheminées par un moyen de transfert vers le précalcinateur de la cimenterie où elles sont injectées en amont du four rotatif pour y être valorisées.

    摘要翻译: 用于升级用于制造水泥的疏浚淤泥和工业污泥的方法包括使用转移单元将从采集罐获得的污泥输送到墓地的预处理器(1),并通过在混合器室的水平注入来升级污泥( 6)使用单元(12)的旋转窑(5)。 污泥以30-80重量%的水含量机械或天然脱水,并通过中间储存仓送入混合室。 转运单元是带有或不带芯的螺杆,输送链或污泥刮板。 用于升级用于制造水泥的疏浚淤泥和工业污泥的方法包括使用转移单元将从采集罐获得的污泥输送到墓地的预处理器(1),并通过在混合器室的水平注入来升级污泥( 6)使用单元(12)的旋转窑(5)。 污泥以30-80重量%的水含量机械或天然脱水,并通过中间储存仓送入混合室。 转运单元是带有或不带芯的螺杆,输送链或污泥刮板。 注射单元是由粘性材料制成的泵,使得其用液压蓄能器或Moineau泵挤出。

    PROCÉDÉ DE TRAITEMENT ET DE VALORISATION DES MATÉRIAUX CONTENANT DE L'AMIANTE
    3.
    发明公开
    PROCÉDÉ DE TRAITEMENT ET DE VALORISATION DES MATÉRIAUX CONTENANT DE L'AMIANTE 审中-公开
    PROCESS石棉,含汞产品的转换

    公开(公告)号:EP3175932A1

    公开(公告)日:2017-06-07

    申请号:EP15197486.2

    申请日:2015-12-02

    申请人: Pardefi SA

    IPC分类号: B09B3/00 C04B18/04 C04B18/16

    摘要: La présente invention concerne un procédé de traitement de déchets contenant des fibres minérales cristallisées faiblement biosolubles, comprenant les étapes suivantes:
    (1) introduire lesdits déchets dans une cisaille rotative dans laquelle les déchets sont cisaillés en continu jusqu'à obtention de particules ayant une taille caractéristique de moins de 50 mm et préférentiellement de moins de 20 mm;
    (2) transférer les particules dans un broyeur dans lequel elles sont micronisées pendant un temps inférieur à 10 min, de préférence inférieur à 1 min, de préférence encore inférieur à 5 s, jusqu'à obtention de particules ayant une taille caractéristique de moins de 1 mm et de préférence de moins de 100 µm;
    (3) transférer les particules dans un broyeur utilisant des corps broyants et opérant en voie sèche, les particules étant micronisées pendant un temps inférieur à 3 heures, de préférence inférieur à 30 min jusqu'à obtention de particules ayant une taille caractéristique de moins de 5 µm ou non détectables.

    VERFAHREN UND ANLAGE ZUR THERMISCHEN TROCKNUNG EINES NASS VERMAHLENEN ZEMENTROHMEHLS

    公开(公告)号:EP1626941B1

    公开(公告)日:2006-09-27

    申请号:EP04732585.7

    申请日:2004-05-13

    摘要: The aim of said invention is to reduce equipment for dehydrating and drying sludge for producing cement clinker from wet-ground cement raw meal in the form of sludge, in particular during transformation of existent sludge dewatering equipment into sludge drying equipment and, first of all during thermal drying sludge in order to maintain the heat loss associated with the formation of exhaust vapours as low as possible. For this purpose, raw meal sludge is dried in a vapour flow dryer (15) by circulating exhaust vapour which, prior to introduction thereof into the low part of the dryer (15), is heated by indirect heat transmission from gaseous flows of a pre-heating system by suspending in a gas cyclone of a clinker production line. A partial vapour flow (25) corresponding to water evaporated during raw meal sludge drying is removed from the steam circuit and extracted in the form of a condensate (28) after increasing the vapour temperature by a vapour condenser (26) and the passage of vapour arranged in the dryer (15) through the heating surface (27) of the vapour condenser.

    摘要翻译: 本发明的目的是减少用于脱水和干燥污泥的设备,用于从污泥形式的湿磨水泥生料生产水泥熟料,特别是在将现有污泥脱水设备转化为污泥干燥设备期间,并且首先在过程中 热干燥污泥以保持尽可能低的与排气蒸汽形成相关的热损失。 为此,通过循环废气,在蒸气流干燥器(15)中干燥生粉污泥,废气在其引入干燥器(15)的下部之前,通过间接传热由预热气流 通过悬挂在熟料生产线的气旋中加热系统。 对应于在生料污泥干燥期间蒸发的水的部分蒸气流(25)从蒸汽回路中去除,并且在通过蒸气冷凝器(26)增加蒸气温度并且蒸气通过之后以冷凝物(28)的形式被提取 通过蒸汽冷凝器的加热表面(27)布置在干燥器(15)中。

    METHOD AND PLANT FOR MANUFACTURING CEMENT CLINKER
    7.
    发明授权
    METHOD AND PLANT FOR MANUFACTURING CEMENT CLINKER 失效
    方法和系统生产水泥熟料

    公开(公告)号:EP0701539B1

    公开(公告)日:1997-11-05

    申请号:EP94917569.9

    申请日:1994-05-27

    发明人: HUNDEBOL, Soren

    IPC分类号: C04B7/44 C04B7/24

    摘要: A method and plant for burning sludge or filter cakes during the cement clinker manufacture where the cement is manufactured in known manner by the cement raw meal being preheated, calcined and burned into clinker with subsequent cooling of the clinker and where the sludge is dried and finely divided prior to burning. In connection with this method a drying method is indicated by means of which the drying gas volume through the drier unit is substantially reduced. This is done by feeding hot raw meal from either the preheater or a separating cyclone installed in connection with the calciner to the drier unit - which may be a drier crusher. In principle, there is no upper limit to the water content in the sludge which may be used for the process, and applicable types of sludge include for example sewage sludge, bleaching earth, paper sludge, fibre rejects, combustible chemical residues, e.g. waste derived from the manufacture of nylons and pesticides, drill sludge resulting from oil exploration and similar types.

    PROCEDE DE FABRICATION D'UN CLINKER SULFO-ALUMINEUX OU SULFO-ALUMINEUX-BELITIQUE ET INSTALLATION CORRESPONDANTE
    9.
    发明公开
    PROCEDE DE FABRICATION D'UN CLINKER SULFO-ALUMINEUX OU SULFO-ALUMINEUX-BELITIQUE ET INSTALLATION CORRESPONDANTE 审中-公开
    用于生产SULFOALUMINAT-或贝利特SULFOALUMINATKLINKERS及相关装备

    公开(公告)号:EP2252559A2

    公开(公告)日:2010-11-24

    申请号:EP09727258.7

    申请日:2009-03-12

    申请人: Vicat

    摘要: The invention relates to a method for manufacturing a sulfoaluminous or belitic sulfoaluminous clinker from a raw mix formed from a mixture including minerals containing calcium, aluminum, silica, iron, and sulfur, preferably in sulfate form, and is characterized in that the method comprises the steps including: at least partially dehydrating and decarbonating the mixture through placement in a vertical kiln (1) comprising a substantially vertical chamber (2) wherein the mixture is heated, the chamber (2) of the vertical kiln (1) being supplied with hot gases the temperature of which is between 900 and 1150° C; extracting the dehydrated and decarbonated mixture from the vertical kiln (1) and conveying the same in a continuous kiln (4) comprising a furnace (5) and a transporting means (6) for transporting the mixture across the furnace (5); heating the mixture from the vertical kiln (1) by passing the mixture through the furnace (5) via the transporting means (6) such that a clinkerization of the mixture is obtained, the average passage time in the furnace being greater than 15 minutes.