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Thread: 15 tons/hour Cement Transfer

  1. #1

    15 tons/hour Cement Transfer

    we are going to install a 15tons/hour cement transfer system in a tunnel. the system requirement as follows:
    material handled: portland cement
    transfer distance: 600meters in horizontal, 6meters in vertical
    no. of bend: 2pcs for 45 degrees, 2pcs for 90 degrees
    operation condition: 12hours a day

    please recommend us which mode of pneumatic system is practicable and also inform us the similar systems has been installed

    many thanks

    jason wang

  2. #2
    You can use either dilute phase or dense phase, depending upon cost. My preference would be dense phase.

    Regards,

    Amrit Agarwal (Tim)
    Pneumatic Conveying Consultants

  3. #3
    Peter Hoefler Guest
    Jason,
    Use dense phase transfer. Dilute phase will transfer this product, however, you will see a lot of wear on convey piping. If dilute phase is selected, you will need a rotary airlock to introduce solids into transfer air stream. This valve will be overcome by wear in a short period of time resulting in excessive blow by.
    Regards, Peter Hoefler

  4. #4
    Join Date
    Mar 02
    Posts
    11
    dear Jason
    You should use a DENSE PHASE pneumatic conveying system.
    Some similar systems , manufactured by "CLYDE pneumatic conveying"are installed in "NESHER ISRAEL",Ramla cement plant.
    sincerly
    S.BAR
    S. Bar
    Chief Engineer
    Ludan engineering LTD.

  5. #5

    Re: Re: 15tons/hour cement transfer

    Originally posted by Nordstrm
    We have developed a pneumatic powder conveyor device for a client Cementa AB, Sweden, commissioned at two cement powder depots in Sweden that, at best may, offer low consumption of compressed air, and easy mechanical installation of transport pipes. the products have been in continuous operation since circa mid '90's.

    Technical information on the product is available as an AutoCad file (cannot be attached as an legible file at this forum).

  6. Pneumatic conveying cement 15 t/h

    Cement can be conveyed in eithr dilute or dense phase systems.There is however some other practical considerations:

    1) Is the system batch or continuous?
    2)At the intake point is there sufficient height for the blow tanks?
    3)Is there an adequate supply of quality compressed air available?

    A dense phase system is probably the best solution for your proposed scheme.The conveying characteristics of pneumatically conveying cement in a dense phase mode is well documented.

    If you require any further information or a complete system design then please do not hesitate to contact me.

    Regards

    John Hughes Lloyd

    JHL Consultants Ltd
    email: grangeeng@aol.com

  7. #7

    pneumatic conveying

    Dear Mr. Wang,
    we are manufacturing equipment for pneumatic conveying system and bulk conveying well knowed in the world.
    Please let us know if we can give you our quotation or is too late.
    The last plants made in your area are one in Singapore and in Taiwan ( Bridgestone plant ).
    Our website is: www.air-tec.it
    Thanks
    Best Regards
    Candini
    Marketing Manager Air-Tec system

  8. #8
    Preston Spaulding - Macawber Engineering, USA Guest
    We at Macawber Engineering specialize in dense phase systems. We have done systems of similar character to what you describe. There is such a system operating for several years now in Hong Kong at a 100 tph rate.

    We would be pleased to provide details on an appropriate system for you. Please review our website www.macawber.com and contact me either via that site or by e-mail directly at the address pspaulding@macawber.com.

  9. Mr Wang,

    It seems that your project is a good candidate for Dense Phase system. Now, before this can be confirmed, a complete evaluation of the system: piping layout, equipment involved, plant location (elevation, weather cond., etc.), shall be required.
    Even though Cement can be fluidized relativetly easy, due to the length of your system it may required additional nozzles that, when located at the right location, it will insured the product transfer.
    Another issue is the type of hopper/tank/silo you will be using as well as the receiving one, codes etc. Is dust a problem? Several questions that once answered will insure the correct application.
    We do all the pneumatic calculations in house and are compared against working systems that we have installed in the past.
    We have worked with Schlumberger, BPAmoco, ExxonMobil, etc. providing consulting and engineering for Cement, Barite, Hematite, Bentinite, etc, transfered at Onshore and Offshore applications.
    Raul Shelton, P.E.
    USA Shelco, Inc.
    Solids Handling Engineers and Consultants
    (713) 278-8900

  10. Dear Mr. Wang,

    I would recommend to use a combination of "Superaerated Flow" and High-Pressure Airlock "Autoseal". This new system was developed by Wormser-System Inc., Salem especially for reliable and energy-saving pneumatic transport of Cement. If you are interested in further informations please contact Alex Wormser under alexwormser@aol.com or send me a message: info@enviro-engineering.com
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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