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Possibility of increasing intensity of mining by mechanization with use of shearer loaders

Journal Article:

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)
Publication Date:
Oct 01, 1981
Product Type:
Journal Article
Reference Number:
EDB-82-136926
Resource Relation:
Journal Name: Przegl. Gorn.; (Poland); Journal Volume: 37:10
Subject:
01 COAL, LIGNITE, AND PEAT; LONGWALL MINING; PRODUCTIVITY; SHEARER LOADERS; USES; CALCULATION METHODS; COAL MINING; CONVEYORS; EQUATIONS; MATHEMATICS; OPTIMIZATION; UNDERGROUND MINING; VARIATIONS; VELOCITY; WORKING FACES; CUTTER LOADERS; EQUIPMENT; HAULAGE EQUIPMENT; MATERIALS HANDLING EQUIPMENT; MINING; MINING EQUIPMENT; 012000* - Coal, Lignite, & Peat- Mining
OSTI ID:
5175962
Country of Origin:
Poland
Language:
Polish
Other Identifying Numbers:
Journal ID: CODEN: PRGOA
Submitting Site:
HEDB
Size:
Pages: 525-529
Announcement Date:
Jul 01, 1982

Journal Article:

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 = {Przegl. Gorn.; (Poland)}
volume = {37:10}
journal type = {AC}
place = {Poland}
year = {1981}
month = {Oct}
}