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Grinding

FLSmidth HAF Fan

HAF Fan

This robust, highly efficient radial fan is designed to operate in demanding environments with efficiency above 80%

  • The basics
  • Design
  • Maintenance

Key benefits

  • Fan efficiency up to 84%
  • Designed for the harsh conditions of the cement industry
  • Simple installation – single suction type requires only one suction pipe connection
  • Rigid support in elevated concrete foundation
  • Optimal rotor stability and thermal endurance
  • Minimal maintenance

 

 

 Learn more

More in-depth information is available here
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How they work

These high-pressure fans are suitable to generate a flow of clean or dust-laden gas or air. Flow rate: up to 160 m3/s; pressure: up to 20,000 Pascal.

Available in several sizes, the HAF fan can withstand continuous operation at flow temperatures up to 400°C and 450°C for short periods.

Typical applications

 

  • Kiln ID fan (for clinker production – ILC, SLC-D, SP, ILC-E and other kiln systems)
  • Raw mill fan (for raw meal production and grinding – ATOX, FRM, TM, TUM and other raw meal grinding systems)
  • Cement and slag mill fan (for cement grinding – OK mill systems)
  • Coal mill fan (for coal grinding – ATOX, TM and other coal grinding systems)
  • Dryer crusher fan (for clinker production – EV dryer crusher systems)
  • Flash dryer fan (for raw meal production)

Design highlights

  • Single suction type fan
  • Suction box forms an integral part of the spiral-shaped casing
  • Shrouded impeller with backward curved blades
  • Impeller positioned between the bearings
  • Wear protection on impeller and in casing if needed
  • Several access doors enable inspection of the impeller
  • Dynamically balanced impeller ensures vibration-free operation
  • Shaft is fitted with cooling discs to prevent overheating of bearings
  • Self-aligning, spherical roller bearings mounted in oil lubricated bearing housings. Bearing housings located on heavy bearing brackets
  • Motor power is transmitted via a flexible coupling

Accessories

  • Thermal sensors and vibration monitoring
  • Inlet louvre damper and actuator for regulation
  • Emergency (barring) system for rotation of shaft in the event of power cut
  • Jet pulse system for on-line cleaning of impeller

Moderate maintenance requirements

Maintenance requirements for the fan type HAF are very moderate, and lubrication frequency depends on operating conditions. Bearing temperatures up to 100°C are acceptable.

 

  • 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 21.06.2010