Conveying

Overland Belt Conveyors

Long-Distance High-Tonnage Cross Country Conveying

  • Challenging Applications
  • Important Considerations
  • World Class Technologies

Low Energy Designs

It is important to provide enough power to operate an overland conveyor. It is equally important to provide a design that will minimize energy consumption over the life of the project.

A recent FLSmidth project in Peru is a good example of how this can be achieved.

Although some isolated operating conditions required 9,000 kW installed power, the normal operating power was only 1,000 kW.

Running all 9,000 kW motors continuously would be uneconomical since motor efficiency is reduced when not operating at full load.

The FLSmidth solution was a combination of head, tail intermediate, and booster drives that run only during predetermined demand conditions.

The result is a substantial energy savings and considerable operating cost reduction over the life of the project. 

Minimize Earth Work

FLSmidth is a leader in the technology of designing Overland Conveyors with horizontal and vertical curves.

Designing Overland Conveyors with Horizontal and Vertical curves that follow the existing terrain can greatly reduce the earthwork requirements.  FLSmidth designed it's first conveyor with a horizontal curve in California USA in 1977.

 

Steep Downhill Regeneration

FLSmidth has designed downhill conveyors that generate up to 8,000 kW of power.

This amount of energy can signifcantly reduce the power consumption of a project.

Steep downhill conveyors can be difficult to build because of the sloping work area.  Constructablilty concerns that are an important part of the design process.

Controlled Starting & Stopping

  • VFD Variable Frequency Drives
  • WRIM Wound Rotor Induction Motors
  • Fluid Couplings
  • Dodge CST

These drive components and cutting-edge technologies can provide solutions for complex drive challenges.

VFD Variable Frequency Drives

In an overland conveyor application VFDs can provide a number of benefits including smoother operation, acceleration control, different operating speeds, compensation for variables, and torque control.

FLSmidrth provided a 600 kW VFD drive for a Silver Project in Peru that required exact acceleration control because of the horizontal curves.

Wound Rotor Induction Motors

WRIMs offer controlled starts and offer higher efficiencies for conveyor running at constant speeds. 

Part of a project with many WRIMs, a 2800 kW WRIM provided the power for a 2.8 km overland conveyor in Western Australia.

Fluid Couplings

Fluid coupling can be a low cost method of providing a controlled soft start in many applications.

FLSmidth provided more than thirty 600 kW drives for a dam construction in the Phillipines.

Fluid Couplings were the best solution for this fast-track project in difficult jungle terrain.

Dodge CST

A planetary gear reducer with an integral wet clutch that is well suited for starting, accelerating and stopping overland conveyors in certain applications.  One of its unique features is the ability to provide unlimited starts per hour, torque limiting and inspection speeds.

FLSmidth chose the Dodge CST to power a 5.2 kM long overland conveyor in Peru that required 9 MW of power.

 

Minimize Field Work

Shop Pre-Assembly can significantly reduce field work and can reduce the construction schedule.  Here idlers are shop installed to support steel for a gold mine project in Western Australia

Design Considerations for Erection during the design process can also reduce field work and reduce the construction schedule.  FLSmidth engineers and designers have spent many hours in the field gaining experience that help reduce erection costs.

Power and Control Systems

The electrical system is often an integral part of an overland conveyor design.

FLSmidth can provide a complete electrical power and control system for your project.

These systems can be provided internally by FLSmidth Automation or other partners such as Synergy Engineering Ltd. who have specialized skill with certain technologies.

 

Dynamic Analysis

FLSmidth engineers are leading the industry by utilizing the most up-to-date licensed and proprietary software to meet the challenges of the most diverse and demanding applications in some of the most severe environments around the world.

Dynamic Analysis software allows the engineer to evaluate and anticipate a multitude of operating conditions and provide designs and equipment to meet these requirements.

 

CLICK This Link to Watch a Dynamic Analysis Video

 

Discrete Element Modeling (DEM)

It all starts with the design.  Discrete Element Modeling (DEM) helps the designer predict how the material will flow through the chutework and determine how the material will affect the life of the wear liners and the belt. 

Click this link to learn more about DEM and watch an actual DEM Model 

Curve Analysis

Recent Design Technologies have allowed what would have been impossible just a few years ago to now be achievable.

Horizontal and Vertical Curves can greatly reduce the cost of a project.  Curves can eliminate costly and maintenance intensive transfers by reducing the number of conveyor segments.  Curves can also allow the conveyor to adjust to the topography rather than making the terrain fit the conveyor.  This can greatly reduced earthwork costs.

FLSmidth utilizes proprietary and licensed technologies to evaluate and optimize conveyor curves.

Contacts

  • Sales and Upgrades

    Jeremy Holland
    Mechanical Engineer, Business Development Manager - Conveyor Engineering
    Tel: +1 208 342 2653 x1133
    jeremy.holland@flsmidth.com
  • Services & Spare Parts

    Linda Woodall
    Spare Parts Coordinator - Conveyor Engineering
    Tel: +1 208 342 2653 x1101
    linda.woodall@flsmidth.com
  • Regional Office

    FLSmidth Bethlehem
    FLSmidth Inc.
    2040 Avenue C
    Bethlehem, PA 18017
    United States
    Tel: +1 610 264 6011
    Fax: +1 610 264 6307
    info-us@flsmidth.com
  • Technology Center

    FLSmidth Boise - Material Handling
    2471 S. Titanium Pl.
    Meridian, ID 83642
    USA
    Tel: +1 208 342 2653
    Fax: +1 208 342 6922
  • Regional Office

    FLSmidth Krebs Inc. - Eastern Coal
    4998 S Elk River Rd.
    Ste E, PO Box 357
    Elkview, WV 25071-0357
    USA
    Tel: +1 304 965 5090
    Fax: +1 304 965 5093
    krebs-coalsales@flsmidth.com
  • Regional Office

    FLSmidth MAAG Gear North America
    2040 Avenue C
    Bethlehem
    PA 18017-2188
    United States
    Tel: +1 610 231 1546
    Fax: +1 610 231 1547
    s.pedersen@maaggear.com
  • Regional Office

    FLSmidth Salt Lake City, Inc.
    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 A/S
    Cement Technologies & Corporate Matters
    Vigerslev Allé 77
    2500 Valby
    Denmark
    Tel: +45 36 18 18 00
    Fax: +45 36 44 11 46
    info@flsmidth.com

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