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Filtration - Vacuum

Dorr-Oliver LDDF in Operation

Large Diameter Disc Filter (LDDF)

Dorr-Oliver Large Diameter Disc Filter - The state-of-the-art filter for highest filtration capacity

  • General
  • Operation Benefits and Advantages

Filter Characteristics

The Dorr-Oliver Large Diameter Disc Filter is a high capacity vacuum filter for maximum product throughput at minimum footprint requirement. With up to six parallel discs with a diameter of up to 6.0 m the filtration area can be up to 285 m² in one machine resulting in minimum installation costs. Hydraulically optimized filter components, including the sectors, the centre barrel and the control valve in combination with the 40 sector/40 channel design the performance of the filter is outstanding.

The Large Diameter Disc Filter is primarily used for mass filtration of good filtering products, such as alumina hydrate and coal but may be selec requiring maximum filtration area on a small footprint.

 

Available Filter Sizes

  • 5.5 m dia. LDDF series: 40/80/120/160/200/240 m²
  • 6.0 m dia. LDDF series: 47,5/95/142,5/190/237,5/285 m²

 

Main Features

  • HiFlow hydraulic design for highest filtration capacity and lowest cake moisture
  • Reliable cake discharge by advanced blow back design
  • Large diameter discs with 5.5 or 6.0 m diameter
  • High speed filter with up to 6.0 rpm disc speed
  • Multiple discs with up to 6 discs per filter
  • Multi-channel design providing 40 channels for 40 sectors per disc
  • Special design for quick and simple filter bag replacement
  • Improved slurry agitation by discs running in multiple low volume troughs
  • Improved sector and rim fixing system resulting in proven long-term mechanical reliability
  • Extended cloth life time due to modern sector design and improved cloth cleaning features.

  • Main Office

    FLSmidth A/S
    Cement Technologies & Corporate Matters
    Vigerslev Allé 77
    2500 Valby
    DENMARK
    Tel: +45 36 18 10 00
    Fax: +45 36 44 11 46
    info@flsmidth.com

  • Main Office

    FLSmidth Inc.
    Cement Projects Americas
    2040 Avenue C
    Bethlehem, PA 18017
    USA
    Tel: +1 610 264 6011
    Fax: +1 610 264 6170
    info-us@flsmidth.com

  • Main Office

    FLSmidth Pvt. Ltd
    Cement and Minerals Projects India
    FLSmidth House, 34, Egatoor, Kelambakkam
    (Rajiv Gandhi Salai – Chennai)
    Tamil Nadu – 603 103
    INDIA
    Tel: +91 44 4748 1000 / 2741 1000
    Fax: + 91-44-2747 0301/0302
    indiainfo@flsmidth.com

  • Main Office

    FLSmidth Salt Lake City, Inc.
    Minerals Processing
    7158 S. FLSmidth Drive
    Midvale, UT 84047-5559
    USA
    Tel: +1 801 871 7000
    Fax: +1 801 871 7001
    info.slc@flsmidth.com

  • Main Office

    FLSmidth Wadgassen
    Material Handling Technologies
    Karl Koch Str. 1
    D-66787 Wadgassen
    GERMANY
    Tel: +49 6834 4700
    Fax: +49 6834 470-339
    wadgassen@flsmidth.com

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Last updated 28.04.2010