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    APPARATUS FOR SHIFTING FILTER PLATES IN A FILTER PRESS
    2.
    发明公开
    APPARATUS FOR SHIFTING FILTER PLATES IN A FILTER PRESS 失效
    装置，用于改变过滤板在压滤机。

    公开(公告)号：EP0333762A1

    公开(公告)日：1989-09-27

    申请号：EP88900193.0

    申请日：1987-11-25

    申请人： ENVIROTECH CORPORATION

    发明人： DAVIS, Steven, S.

    IPC分类号： B01D25

    CPC分类号： B01D25/172

    摘要： Un appareil pour effectuer la séparation des plaques filtrantes (15) à l'intérieur d'un filtre-presse comprend une piste de guidage (34) sur laquelle est monté un chariot (38) à mouvement alternatif coulissant. Ce chariot comprend au moins un cliquet pivotant (52, 54) sur lequel est défini un espace de butée destiné à venir en contact avec une plaque filtrante à transporter. Le cliquet (52, 54) est maintenu dans une orientation surélevée par un ressort élastique (55). Le chariot (38) est entraîné le long de la piste de guidage (34) au moyen d'un piston (162) déplacé par pression et mécaniquement lié avec ce dernier. Le piston est logé à l'intérieur d'un organe tubulaire (152). Deux chambres de pression (172) sont positionnées à l'intérieur de l'organe tubulaire, une sur chaque extrémité du piston. Du fluide pressurisé est introduit de manière contrôlée dans une ou l'autre de ces chambres afin de provoquer un déplacement du piston. Le vérin hydraulique est du type généralement désigné sous le nom de vérin sans tige.

    Granular media filter
    4.
    发明公开
    Granular media filter 失效
    格式介质过滤器

    公开(公告)号：EP0102767A3

    公开(公告)日：1986-09-17

    申请号：EP83304536

    申请日：1983-08-05

    申请人： ENVIROTECH CORPORATION

    发明人： Black, Brent C. ,  Bradley, Bruce D. ,  Haymore, Ralph B.

    IPC分类号： B01D23/24

    CPC分类号： B01D24/002 ,  B01D24/22 ,  B01D24/4636

    摘要： @ An improved filtering machine of the down-flow type is disclosed wherein a particular section of a granular media filtration bed is isolated for backwashing while allowing filtration to proceed in the remainder of the bed. The filter machine includes a liquid-holding tank containing a bed of granular media, structure permitting passage of filtrate through the bed from below, a flume for distributing influent liquid containing suspended solids across the bed for downward percolation therethrough, and a partitioning chamber mounted on a carriage mechanism which selectively conveys the partitioning chamber across the surface of the bed. The partitioning chamber is reciprocatably insertable into the bed to isolate selected sections from the remainder of the bed. A pump is in communication with the partitioning chamber to draw liquid upward through the bed within the isolated section.

    FILTER CLOTH CAKE REMOVAL DEVICE
    6.
    发明公开
    FILTER CLOTH CAKE REMOVAL DEVICE 失效
    安排处置布滤饼。

    公开(公告)号：EP0248080A1

    公开(公告)日：1987-12-09

    申请号：EP87900488.0

    申请日：1986-12-05

    申请人： ENVIROTECH CORPORATION

    发明人： DAVIS, Steven, S.

    IPC分类号： B01D25

    CPC分类号： B01D25/34 ,  B01D25/127

    摘要： Appareil permettant d'enlever automatiquement des dépôts de gâteaux de la surface de toile de filtration (27) dans un filtre-presse. L'appareil comprend une tige (41) d'où est suspendue la toile (27) suivant une configuration ayant sensiblement la forme d'un ''V'' inversé. On donne ensuite du mou à la toile (27) en abaissant la tige (41) sur laquelle se plie la toile. On actionne ensuite soudainement la tige (41) vers le haut sous l'action d'une force d'entraînement d'un dispositif de charge (58). La tige (41) tire la toile vers un état tendu, raide, conférant un mouvement semblable à un coup de fouet à la matière textile de la toile de filtration. Ce mouvement sert à faire sortir le gâteau (42) de la toile de filtre (27).

    Composite roll covering for expressing machines
    7.
    发明公开
    Composite roll covering for expressing machines 失效
    Pressrolle mit mehrerenHüllschichten。

    公开(公告)号：EP0208897A1

    公开(公告)日：1987-01-21

    申请号：EP86107646.1

    申请日：1986-06-05

    申请人： ENVIROTECH CORPORATION

    发明人： Davis, Steven S. ,  Mueller, Max A. ,  Janecek, Kenneth F.

    IPC分类号： B30B9/24 ,  B65G39/02

    CPC分类号： B30B9/241 ,  B30B9/246

    摘要： In a dewartering machine for dewatering wet solids in which an elastomeric covered roll (20) applies pressure upon one more dewatering valves, the improvement whereby the elastomeric roll covering (22) is a multi-layer covering having a graded hardness across the covering layer. A typical covered roll (20) of such a machine is one in which a soft rubber-like material adheres to the surface of the roll and is covered by a harder outer covering.

    摘要翻译： 在用于使湿固体脱水的脱水机中，其中弹性体覆盖辊（20）对一个脱水阀施加压力，其中弹性体辊覆盖物（22）是跨覆盖层具有分级硬度的多层覆盖物的改进。 这种机器的典型的覆盖辊（20）是其中软橡胶状材料粘附到辊的表面并且被较硬的外覆盖物覆盖的辊。

    METHOD AND APPARATUS FOR BIOLOGICAL PROCESSING OF METAL-CONTAINING ORES
    9.
    发明授权
    METHOD AND APPARATUS FOR BIOLOGICAL PROCESSING OF METAL-CONTAINING ORES 失效
    含金属矿物生物加工的方法与装置

    公开(公告)号：EP0294387B1

    公开(公告)日：1992-07-15

    申请号：EP87901845.5

    申请日：1987-02-06

    申请人： ENVIROTECH CORPORATION

    发明人： EMMETT, Robert, C., Jr. ,  O'CONNOR, Lawrence, T.

    IPC分类号： C01G3/00 ,  C01G5/00 ,  C01G9/00 ,  C01G28/00 ,  C01G30/00 ,  C01G49/00 ,  C22B3/00 ,  C22B3/02

    CPC分类号： C22B3/18 ,  B01F3/04269 ,  B01F5/0218 ,  B01F2003/04312 ,  B01F2003/0439 ,  B01F2003/04879 ,  B01J8/10 ,  C22B3/02 ,  Y02P10/234 ,  Y10S423/17

    摘要： A bioreactor vessel (13) includes an open-ended tank (14) having suspended therein an air supply means (15) adapted to inject air into a liquid (16). The bottom member (17) is sealingly mounted with sidewalls (18), which has open port (20) and, the sidewalls define a constant tank diameter (21). The supply means (15) may include elongated tubular support shaft (22) which includes a longitudinal axis (24) which passes through the longitudinal axis (26) of the tank (14). Hollow riffle tubes (70) are fixedly mounted to shaft (22) for slurry flow which, after flowing through the riffle tube (70), impacts on the slurry (16) contained in the tank (14). Each radial arm (90), supported by support arm (96), extends outwardly from shaft (22) along longitudinal axis (107) and contains diffusers (100), which directs oxygen to the slurry (16). The diffusers include upright rigid frame structure (104) and a membrane fitted face (106). The membrane adheres to the sidewalls (110) whereby each compartment (114) is sealed. Each compartment (114) contains aperture (115) for measuring CO2 concentrations. Fitted on the lower surface of radial arm (90) are scrapers (117) to collect solids. In one construction, radial arm (90) and support (96) are mounted on cylindrical sleeve (121) which is made rotatable with shaft (22). Positioned in the upper region of the tank (14) is the bridge support (112).

    Granular media filter
    10.
    发明公开
    Granular media filter 失效
    重力过滤器与颗粒过滤材料。

    公开(公告)号：EP0102767A2

    公开(公告)日：1984-03-14

    申请号：EP83304536.2

    申请日：1983-08-05

    申请人： ENVIROTECH CORPORATION

    发明人： Black, Brent C. ,  Bradley, Bruce D. ,  Haymore, Ralph B.

    IPC分类号： B01D23/24

    CPC分类号： B01D24/002 ,  B01D24/22 ,  B01D24/4636

    摘要： @ An improved filtering machine of the down-flow type is disclosed wherein a particular section of a granular media filtration bed is isolated for backwashing while allowing filtration to proceed in the remainder of the bed. The filter machine includes a liquid-holding tank containing a bed of granular media, structure permitting passage of filtrate through the bed from below, a flume for distributing influent liquid containing suspended solids across the bed for downward percolation therethrough, and a partitioning chamber mounted on a carriage mechanism which selectively conveys the partitioning chamber across the surface of the bed. The partitioning chamber is reciprocatably insertable into the bed to isolate selected sections from the remainder of the bed. A pump is in communication with the partitioning chamber to draw liquid upward through the bed within the isolated section.