Abstract
Discusses methods of increasing productivity of face systems in longwall mining. Feasibility of increasing coal output by variation of shearer loader haulage speed is analyzed. Effects of haulage speed variation on energy consumption or cutting tool wear are not considered. It is assumed that haulage speed does not depend on advance rate of the powered supports or the rate of face conveyor advance. Mathematical equations are derived for calculation of the optimum haulage speed variations. The method consists in use of variable haulage speed optimized for a given section of a longwall face without overloading the conveyor drive system. Situations with single drum shearer loaders and with bi-directional shearer loaders with cutting drums situated at both ends of the shearer are analyzed. Analyses show that by haulage speed variation shearer loader productivity is significantly increased. Performance tests under operational conditions show that in the case of a bi-directional shearer loader productivity increases by 31% and in the case of a shearer loader with a single drum by 11%. (4 refs.) (In Polish)
Citation Formats
Sikora, W, and Jaszczuk, M.
Possibility of increasing intensity of mining by mechanization with use of shearer loaders.
Poland: N. p.,
1981.
Web.
Sikora, W, & Jaszczuk, M.
Possibility of increasing intensity of mining by mechanization with use of shearer loaders.
Poland.
Sikora, W, and Jaszczuk, M.
1981.
"Possibility of increasing intensity of mining by mechanization with use of shearer loaders."
Poland.
@misc{etde_5175962,
title = {Possibility of increasing intensity of mining by mechanization with use of shearer loaders}
author = {Sikora, W, and Jaszczuk, M}
abstractNote = {Discusses methods of increasing productivity of face systems in longwall mining. Feasibility of increasing coal output by variation of shearer loader haulage speed is analyzed. Effects of haulage speed variation on energy consumption or cutting tool wear are not considered. It is assumed that haulage speed does not depend on advance rate of the powered supports or the rate of face conveyor advance. Mathematical equations are derived for calculation of the optimum haulage speed variations. The method consists in use of variable haulage speed optimized for a given section of a longwall face without overloading the conveyor drive system. Situations with single drum shearer loaders and with bi-directional shearer loaders with cutting drums situated at both ends of the shearer are analyzed. Analyses show that by haulage speed variation shearer loader productivity is significantly increased. Performance tests under operational conditions show that in the case of a bi-directional shearer loader productivity increases by 31% and in the case of a shearer loader with a single drum by 11%. (4 refs.) (In Polish)}
journal = []
volume = {37:10}
journal type = {AC}
place = {Poland}
year = {1981}
month = {Oct}
}
title = {Possibility of increasing intensity of mining by mechanization with use of shearer loaders}
author = {Sikora, W, and Jaszczuk, M}
abstractNote = {Discusses methods of increasing productivity of face systems in longwall mining. Feasibility of increasing coal output by variation of shearer loader haulage speed is analyzed. Effects of haulage speed variation on energy consumption or cutting tool wear are not considered. It is assumed that haulage speed does not depend on advance rate of the powered supports or the rate of face conveyor advance. Mathematical equations are derived for calculation of the optimum haulage speed variations. The method consists in use of variable haulage speed optimized for a given section of a longwall face without overloading the conveyor drive system. Situations with single drum shearer loaders and with bi-directional shearer loaders with cutting drums situated at both ends of the shearer are analyzed. Analyses show that by haulage speed variation shearer loader productivity is significantly increased. Performance tests under operational conditions show that in the case of a bi-directional shearer loader productivity increases by 31% and in the case of a shearer loader with a single drum by 11%. (4 refs.) (In Polish)}
journal = []
volume = {37:10}
journal type = {AC}
place = {Poland}
year = {1981}
month = {Oct}
}