Most of the underground coal in the United States is mined via room-and-pillar mining methods with continuous miners. The machines operate intermittently because they have to wait for shuttle cars to interchange positions. To overcome this discontinuity in shuttle car haulage and to realize the full production potential of continuous miners, the U.S. Bureau of Mines developed a multiple-unit continuous haulage (MUCH) system. The MUCH system consists of 12 rubber-tired vehicles and a bridge conveyor. The rubber-tired vehicles are connected by a unique mechanical linkage system to form a 250-ft train. The mechanical linkage permits the vehicles to track-retrack the preceding vehicle in both inby and outby directions. The cut coal cascades from one vehicle to another until it is discharged on the section conveyor belt. The MUCH system provides continuous haulage to the continuous miner.
Surface Testing and Evaluation of the Multiple-Unit Continuous Haulage System
1989
66 pages
Report
Keine Angabe
Englisch
Development of a Multiple Unit Continuous Haulage System
NTIS | 1983
|Haulage unit of uncommon versatility
Engineering Index Backfile | 1933
Study of Continuous Face Haulage Systems
NTIS | 1975
|Engineering Index Backfile | 1936
|Vibration Environmental Testing for Large Haulage Trucks
NTIS | 1993
|