ROBERTS AND SCHAEFER LOGO
WHO WE ARE
INDUSTRIES SERVED
SERVICES PROVIDED
LITERATURE REQUEST
PROJECT LISTS
by Industry Served
by Service Provided
FTP
PARENT COMPANY
CONTACT US
   
ROBERTS AND SCHAEFER COMPANY - How the world processes its resources


COAL PRODUCTION
Surface Mining

Lignite and Sub-bituminous Coal Handling Systems

The low-grade coal resources of the United States require (delete S) special considerations to maximise coal production and profits. The thick sub-bituminous coal beds of Wyoming, as well as the thin lignite fields in Texas and the Dakotas offer unique challenges to coal producers. Under all circumstances, our goal has been to meet the specific needs of each coal producer served.

Roberts & Schaefer Company (R&S) has participated in the development of facilities to provide high capacity, near-pit, movable, truck dump and crushing stations to feed overland conveyors.

 

  • We have applied high capacity roll-crusher units to reduce 60" run-of-mine coal to a nominal 4" product for conveying.

  • We have incorporated feeder-breaker machines in the system in order to minimise vertical height requirements.

  • We have pioneered the design of stilling sheds over truck dump stations, trading inefficient dust collection systems for "Passive Dust Hood" systems.

The projects below best illustrate our experience in this area.

NORTH ROCHELLE MINE
Click for more about this projectTriton Coal Company
Gillette, WY
R&S designed, furnished, installed and commissioned a coal unloading, slot storage, reclaim and batch weigh train load out system consisting of a truck dump station with a 535 ton hopper capable of accepting 240 ton dump trucks with material size of 8" x 0". In-depth project information

JACOBS RANCH MINE
Click for more about this projectKerr-McGee Coal Corporation
Gillette, Wyoming

R&S was selected for engineering a major expansion of Jacobs Ranch Mine. The expansion included a truck dump, crushing station, 54-inch wide mid-drive storage conveyor, silo top transfer conveyors and head house modifications. In-depth project information



More Surface Mining Projects


© Copyright 2006 Roberts & Schaefer Company. All rights reserved.
Suggestions and feedback are welcome at webmaster@r-s.com.au.