Minimum Cost Strategies for Longwall Equipment Moves.
NTIS: PB/267-764 Available for Reference At Bureau Libraries :125 pages
Longwall mining has a high potential for producing bulk production from a single face. Production is interrupted for a considerable time when it is necessary to move the equipment to a new block of coal. The frequency of such moves can be reduced by increasing the dimension of the block to be moved. Merely doubling the tonnage in a block to be mined may increase production by more than 21,000 tons per year. The time taken to move the equipment can be reduced by careful preplanning, industrial engineering analysis, and specially designed equipment. Reducing its move time from 30 days to 5 days can increase production by more than 25,000 tons per year. Increasing the panel dimensions and reducing the move time can give an increase in pretax profits of more than $600,000. A comprehensive bibiliography is included.
CP; Final Contract Report;
NTIS Accession No.
NTIS: PB/267-764 Available for Reference At Bureau Libraries
Gates Engineering Company