Conceptual Design of an Automated Longwall System - 4 Volume Set. Volume I. Final Report.
NTIS: PB/263-213 Available for Reference At Bureau Libraries :422 pages
The objective of this study was to develop conceptual designs for a fully automated longwall mining system. The study was divided into three phases. Phase III is in two volumes. Volume I provides the concepts for two automated longwall mining systems; one for operation in a 42- to 57-inch-thick section of the Lower Kittanning seam and the other in a 57- to 72-inch-thick section of the Pittsburgh seam. One concept uses a single-drum bidirectional shearer and 500-ton chocks; the other uses a double-drum shearer with 500-ton shields. Each concept is designed to produce in excess of 2,500 tons of coal per 6-man face crew shift.
CP; Final Contract Report;
NTIS Accession No.
NTIS: PB/263-213 Available for Reference At Bureau Libraries