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Thread: "Flow Dynamic Conveyor"

  1. #1
    Author Guest

    "Flow Dynamic Conveyor"

    "Flow Dynamic Conveyor" for Power Plant Coal

    Our client Taiwan Power Company / TPC is planning to build more than 10 km of "Flow Dynamic Conveyor", but thru your network service, I failed to find out suitable experienced equipment manufacturers.

    Thus can you do me a favor for requesting well experienced makers, if any, to contact me soon.

    Your help and support will be highly appreciated.

    Best regards,
    Brian Wu
    Director
    Formosa Industrial Services Corp.
    Tel +886-2-2581-0916~7
    Fax +886-2-2581-0918
    Email: jkw168@ms28.hinet.net

    PS:
    My understanding is as follows:

    1. The "Flow Dynamic Conveyor/FDC" has been developed by a Japanese
    maker called Kawasaki Heavy Industries Co., Ltd. / KHI, which is
    designed for transporting bulk materials like as Ore, Coal..

    2. Furthermore, in Japan there are only two developers, besides KHI
    the other one is Ishikawajima-Harima Heavy Industries Co.,LTD. / IHI.

    3. Besides the above two Japanese makers, no European or American
    maker is known in Taiwan.

    4. Now TPC is under feasability study for constructing a FDC for conveying
    Coal to a new coal fired plant which now is also under F/S stage.

    5. The distance will be about 12 km from seaport to power station site.

    6. Quantity of coal to be conveyed is not fixed yet, but it shall meet
    requirements to supply 2 units of 800 MW super critical boiler power plant.

    7. According to KHI's information, they utilize "floating air" to transport
    coal with high speed, but the capacity is not so high, compared with the
    traditional belt conveyor.

  2. #2
    Join Date
    Mar 03
    Posts
    1,641
    Are you asking about what I understand as an "air supported belt conveyor" ?

    The following link gives a description.

    http://www.ckit.co.za/Conveyor/Aeroc...Functional.htm

  3. Dear Brian Wu,

    If you find limited suppliers, for particular type of equipment, the other option is to invite bids for two types of equipment / system fulfilling functional needs. Then evaluate both the systems for total of initial investment, maintenance cost, operating cost, reliability, availability of spares etc, and choose the system which is economical in real terms (comparison of evaluated price)

  4. #4
    Eric Tan Guest

    Coal Handlings

    Dear Brian
    We are from Clyde materials handling specialises in coal handlings and we have tons of references in handlings coal.
    Please visit our websiteat www.clydematerials.com.sg

  5. #5
    Lawrence K. Nordell

    Lawrence K. Nordell

    President and CEO

    Conveyor Dynamics Inc. [eDir]

    Conveyor Dynamics Inc.

    Professional Experience 57 Years / 11 Month Lawrence K. Nordell has 57 Years and 11 Month professional experience

    Discussions 2608 Lawrence K. Nordell acceded to 2608 discussions, Articles 0 Lawrence K. Nordell wrote 0 articles, Publications 0 Lawrence K. Nordell Nordell released 0 publications

    Searching nothing specified

    Know-How Design (1521) Lawrence K. Nordell used this tag 1521 times, Pipe Conveyor (238) Lawrence K. Nordell used this tag 238 times, Chutes (119) Lawrence K. Nordell used this tag 119 times

    Dear Mr. Brian Wu,

    Conveyor Dynamics, Inc. (CDI) has designed many conveyors in the 10 km length class you nominate. PLease see our website for some references. We also have first hand technical knowledge of the air-slide conveyor design and its physics.

    For the air-slide concept, we have developed advanced Computational Fluid Dynamics (CFD) codes to further the understanding of the air-slide concept. CDI has incoporated these advancements into BELTSTAT for equivalent design and analysis given to conventional conveyors. This proprietary code is now the property of Martin Engineering in the USA. We still retain the understanding of its use and can assess its application against varies competing designs.

    I am interested in the FDC approach. How does it differ from the standard air-slide? What advantage does Kawasaki claim? Is it justified?

    I believe the two 800 MW boilers will consume sufficient coal to give a conventional conveyor the ability to favorably compete against the air-slide conveyor. I can offer a free review of your proposed concept to identify difference in scope and project costs for two competing concepts.

    If you feel this to be of value please contact me at:

    Lawrence Nordell
    President
    Conveyor Dynamics, Inc.
    1111 West Holly Street
    Bellingham, Wahinghton 98225
    USA
    ph: 360-671-2200
    fx: 360-671-8450
    email: nordell@conveyor-dynamics.com
    website: www.conveyor-dynamics.com

  6. #6
    Lawrence K. Nordell

    Lawrence K. Nordell

    President and CEO

    Conveyor Dynamics Inc. [eDir]

    Conveyor Dynamics Inc.

    Professional Experience 57 Years / 11 Month Lawrence K. Nordell has 57 Years and 11 Month professional experience

    Discussions 2608 Lawrence K. Nordell acceded to 2608 discussions, Articles 0 Lawrence K. Nordell wrote 0 articles, Publications 0 Lawrence K. Nordell Nordell released 0 publications

    Searching nothing specified

    Know-How Design (1521) Lawrence K. Nordell used this tag 1521 times, Pipe Conveyor (238) Lawrence K. Nordell used this tag 238 times, Chutes (119) Lawrence K. Nordell used this tag 119 times

    Mr. Wu

    My above note refers to air-supported conveyor belt when referencing the "air-slide".

    Lawrence Nordell

  7. #7
    Mr. Zhivoglyad Guest

    dynamic flow conveyor

    Dear Mr. Wu
    Plese let me know how is mentioned conveyor driven
    whether it is provide by some electric motors in such way I think that our company may suggest such motor.

  8. #8
    N. Rocha, Portugal Guest
    Hello.

    I am a mechanical engineering student from Instituto Superior Tecnico, Lisbon. I am currently in the Netherlands doing my final project. The subject I study is the air-supported belt conveyor.

    During the research I noticed the little amount of information available in literature and Internet. The companies that design and install air-supported belt conveyors are only a few. Some of them are:

    http://aerobelt.co.za/works.htm
    http://www.hudcoinc.com/convey_more.html
    http://www.tramcoinc.com/
    http://www.hendrikent.com/pages/HoverG2.html
    http://www.aeroco.co.za/pinfo_overview.html

    The fact that there is no current applications with such a long length (~10 km!), and not so much experience in general, is a significant drawback.

    Depending on the support geometry the initial costs may be higher (or not ) than other conveyor systems. The capacity to negotiate curves is limited.

    The results I obtained with a model of this conveyor showed that the overall power consumption and belt tensions can be reduced in comparison with the conventional troughed belt conveyor. In what concerns power consumption and belt class the aero-conveyor presents the main advantage. For other aspects as belt wear and stability, this conveyor competes favorably.

    My opinion is that this system is worth applying, specially for this length, but the lack of experience is also important... it makes taking in consideration other alternatives.
    Last edited by N. Rocha, Portugal; 3rd October 2003 at 15:33.

  9. #9
    Disselboom Guest

    Original Aeroconveyors

    A few months ago Aeroconveyors have studied a somewhat similar high-volume coal feed situation, albeit the more customary length of a few hundred metres per conveyor, adding up to about 1,5km.

    This study revealed that Aeroconveyors would have distinct advantage, amongst others:

    * Reduced power requirements.
    * Higher speed, narrower belt.
    * Better opportunities for self-diagnosing and predictive system to avoid and manage failures.

    There can be no question that the air-supported belt life increase would lessen the need for belt-replacement and long term belt changes and thus down-time, would be significantly reduced.

    The downside of these high-volume, heavy material applications, are that the air blower power requirement increases such that indeed the overall power requirement saving over conventional roller-supported conveying is not as large as for example for bagasse in the sugar industry. This is largely overcome by using the higher belt speeds that are possibly with air-supported conveyors, but obviously one needs to assess the detailed requirements to see what is possible (e g is a longer trajectory at the off-load point acceptable?

    There is an opportunity for self-diagnosis enabling a preventative maintenance system that would along the long length be of crucial importance.

    Note that in our design, the Aeroconveyor is self-supportive over large spans, and would generally be far quicker to install and commission than a conventional conveyor, but yes, one would have to study the capital costs (but also the operational and lifetime costs!).

    The long length dictates careful study of startup and loaded re-start issues.

    Fact is that Aeroconveyors (the original) successfully carries coal and ore in many applications.

    Regards

  10. #10
    N. Rocha, Portugal Guest

    Results of feasibility study?

    Hello.

    I finished my thesis about air-supported belt
    conveyors. It was an independent research and I
    am able to share the results.

    If anyone knows about the results for this
    feasibility study, or how it is developing I
    would appreciate to know also.

    Thanks


    Nuno
    nunoalbertorocha@yahoo.com
    Last edited by N. Rocha, Portugal; 2nd October 2003 at 17:48.

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