Results 1 to 5 of 5

Thread: Milling Polyurethane Foam Particles

  1. #1
    felix Guest

    Question Mill for PUR foam particles

    Hi,

    I'm in search of a mill to reduce powdered foam down to flour. The foam is compressable so it can not be crushed by steel rollers in the way that semolina is crushed to make ordinary flour.

    A flour mill engineer suggested that there was a type of mill used in the food industry that uses a fixed drum with very small holes and a high speed rotor with teeth or pegs. The material is forced into the holes by centrifugal force and the rotor cuts away whatever does not fit through first time. Does this sound familiar or is there something more suitable?

    The foam is made of polyurathane resin and contains a gas blowing agent in the voids. The blowing agent should be released during milling. The foam is mostly dry but could be wetted if this would help. Throughput 4kg (100litres of powder) per minute, 7x24h operation.

    A course mill to breakdown small chunks of foam (up to 50mm or 2 inches accross) into powder will also be needed.

    Thanks for your assistance.

    Felix.

  2. Thumbs up Milling PUR Foam

    I suggest you contact a Mr Iain Crossley at Hosokawa Micron Ltd, UK Tel 01928 755100.

    Hosokawa did some considerable work in processing this type of material some years ago.

    Iain was involved and should be able to advise you.

    Hosokawa UK website: www.hosokawa.co.uk

  3. #3
    Join Date
    Oct 03
    Posts
    5
    Dear Sir
    We may be able to ffer a solution for your coarse reduction application. Please visit our web site at www.powdertechusa.com and review the Gericke Nibbler range.
    A new mill is now also available that is not featured on our web site that may be capable of achieving your finer grind requirements.
    Best Regards
    Rick Isherwood
    President - PTI
    e-mail info@powdertechusa.com

  4. The initial cut of the foam can be done with a simple saw arrangement.
    The reduction to powder is a little more complex because the material is very light and difficult to manage in rotating equipment.
    In my opinion you could get your objectives by compressing the material into a thick block and continuously sand it.
    Contact me if you want to discuss it further.

    Antonio Reis
    Vitrom Mfg Consultants
    209-834-1900
    www.vitrom.com

  5. #5
    R. Schatz - G&A Industrieanlagen, Germany Guest
    Hallo

    Our G&A AIRMILL is suitable to grind Polyurethane foam to flour. AIRMILL- technology is used for this application at the recycling of refrigerators.
    The foam should be pre-cutted to pieces less than 15 mm.

    Rolf Schatz
    G&A PROTEC GmbH
    GERMANY
    e-mail: rolf.schatz@gutes-aufbereiten.de

Similar Threads

  1. Drying of Particles in an Air Stream
    By Mark Kilfoil in forum Drying Technology
    Replies: 4
    Last Post: 11th April 2005, 2:10
  2. Fine Milling of Ammonium Sulphate
    By marestra in forum Powder Processing
    Replies: 2
    Last Post: 24th October 2003, 10:29
  3. Milling of Dry Organic Solids
    By David Cohen in forum Size Reduction & Comminution
    Replies: 4
    Last Post: 2nd July 2003, 18:46
  4. Ultra Fine Milling of Polymer Powders
    By John Richards in forum Powder Processing
    Replies: 3
    Last Post: 21st October 2002, 10:30
  5. Wear and Corrosion protection with Polyurethane
    By Martin Heinrichs in forum General Aspects
    Replies: 0
    Last Post: 13th November 2000, 14:50

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Single Sign On provided by vBSSO