Innovations in Shearer Technology.
Organiscak-JA; Thimons-ED; Jankowski-RA
Proc American Mining Congress Coal Convention Cincinnati Ohio, 1992 May; :149-165
Many technological improvements have been made on longwall shearing machines since the introduction of fully mechanized longwall mining in the United States during the 1960's. Improving shearer design and its complementary equipment helped triple longwall production since 1980 (an annualized growth of over 13 pct) with roughly the same number longwall systems in operation. Immediate future trends of shearer design include smaller and higher-powered machines with employee directed semiautomated production features and improved machine diagnostic technology. Fully automated longwall shearer faces may not commonly be used before the end of this century because of a lack in reliable sensor and data transmission technologies and the lack of trained personnel to support these technologies.
Proc American Mining Congress Coal Convention Cincinnati OH, May, 1992; Amc, PP. 149-165