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Thread: Long Distance Conveying

  1. #1
    ash_bhatnagar Guest

    Long distance conveying

    we have a requirement of 2.2 km long conveyor at one of our plants for conveying limestone.

    can somebody guide me what extra precations and technical features are to be made as part of the tender as compared to normal conveyors.

    also what additional safety consideration shall be taken in to account.

  2. #2
    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

    Extra Precautions

    Ash

    Seems like this belongs in the tender section. Do you want serious parties to bid this or just play with it?

    There are many benefits to be derived from proper design verses agricultural designs. What is the tonnage, rock size, moisture content, terrain path, lift or fall, horizontal path, .......... all normal design criteria????

    I believe I have answered a number of your queries. You have not responded in kind. Quid Pro Quo.

    Lawrence Nordell
    Conveyor Dynamics, Inc.
    website: www.conveyor-dynamics.com

  3. Long Distance Conveying

    Dear Shri A K Bhatnagar

    You have put very dificult question as its reply will amount to narating full design procedure which is difficult.

    The practical answer is that the conveyor should be deisgned according to correct/ right engineering practice and standards. The design so done should be covincing to the buyer with all questions answered to the satisfaction of the buyer / user.

    Regards
    I G Mulani

  4. Dear Ash,

    Two things come immediately to my mind -

    1. You will need a belt rip protection system - be it the electronic sensor loop type OR the electro-mechanical high elongation breaker sheet type, AND

    2. You will need to be very careful about tracking of the belt. One important manufacturing critereon for this is high precision accuracy in positioning of the cords as well as equality of the cord tension imparted at the time of manufacturing.
    However, this may not be something you can easily establish with various manufacturers. Therefore you could consider restricting your vendors to only those who have a satisfactory track record of having supplied the entire belt length of anh conveyor which is as long as yours. A satisfactory tracking performance in such an installation would give you some comfort about the belt manufacturers capability in this regard.

    Kayem

  5. #5
    B J Babaria Guest

    Key Factors

    Dear Mr Bhatnagar

    Please contact with the details enabling us to provide solutions.

    B J Babaria

  6. #6
    There is nothing special about 2.2km long conveyors but you should install a rip protection as advised elsewhere. On tracking issues: you will have to train the belt yourself. While some manufacturers may claim equal stand pretensioning it all comes to nought in the splicing. So you will still have to shuffle idlers to and fro to get the beast running anything like straight.
    Look out for places of danger if the belt breaks; what will fly into adjacent machinery; what will fall and damage foundations. Will you be able to see the whole belt from two vantage points etc. Those are the things you should worry about.

  7. #7
    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

    Efficient Design of Overland Conveyors

    Dear Ash:

    I am presenting a topical paper to BELTCON 12 RSA entitled:
    "Overland Conveyors Designed for Efficient Cost & Performance"

    The 17 page paper presents the folowing:
    1. Power Analysis / Rubber Rheology understanding it principles
    2. Power Analysis Capital & Operating cost benefits / savings
    3. Idler Spacing Optimization on 7 km Bi-way Overland
    4. Belts Strength Safety Factors
    5. Head & Tail Drive Benefits
    6. Note on Horizontal Curves
    7. Belt Life & Transfer Chute Design
    8. Dynamics & Controls

    Your 2.2 km overland fits into this catagory.

    If you have an interest you can get a copy from SK Nayak who I believe you know:

    email: ckitind@vsnl.com

    Lawrence Nordell
    Conveyor Dynamics, Inc.
    www.conveyor-dynamics.com

  8. Long distance conveyor

    Dear Mr. Bhatnagar,
    Without going into delatils, three things can be suggested.
    1.Provide multi-drive both in tail & head end
    2.Use power take-up with load-cell.
    3.Provide more angle of wrap.
    Regards.
    Atanu Banerjee
    M.N.Dastur & Co. Ltd.
    Calcutta

  9. #9
    BMW Conveyors Guest

    RE:

    Long distance conveyors ate a little touchy of course because of their length.

    Please visit our web site: www.convoyeursbmw.com

    You can also contact us for consulting strategies.

    Jean Bdard Consultant

    Contact name: Jean Bdard
    1-877-540-2269

    This is our consultant as well as the president of our strong company.

    Greetings,

    Jean-Philippe Bdard

  10. Dear Mr. Ash Bahtnagar,

    The previous comments are all valid.

    Although 2.2km is not a long overland sytem, there are some differences from a short, in-plant system. You should take into consideration the special requirements for footings, bridges, and environmental protection (i.e. covers). Also, belt turnovers are common with overland systems.

    Regards,
    Dave Miller
    ADM Consulting
    10668 Newbury Ave., N.W.,
    Uniontown, Ohio 44685 USA
    Tel: 001 330 265 5881
    FAX: 001 330 494 1704
    E-mail: admconsulting@cs.com

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