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Technological possibilities for increasing coarse coal yield in the Staszic mine

Journal Article:

Abstract

Experiments carried out in the Staszic underground black coal mine in Upper Silesia showed that there is a correlation of coarse coal yield and yield strength of shield supports used at longwall faces. The faces were equipped with Pioma 25-45, Fazos 15-31 and Fazos 19-32 shield supports, KWB 3RDU shearer loaders and Rybnik chain conveyors. Pressure of oil in water emulsion used in the Pioma 25/45 shield supports was reduced from the recommended 30 MPa to 15 MPa or to 10 MPa. Reducing emulsion pressure (and support yield strength) caused an increase in coarse coal yield. Coarse coal yield was also increased by use of Fazos 19/32 shield supports with reduced yield strength. During the tests coarse coal yield increased 1.68% and 2.65%. Test results are shown in 3 diagrams. Investigations carried out in the Staszic mine in 1983 showed that by optimizing yield strength of shield supports coarse coal yield could be increased 2 to 8%. 6 references.
Authors:
Publication Date:
Jun 01, 1985
Product Type:
Journal Article
Reference Number:
EDB-86-058041
Resource Relation:
Journal Name: Przegl. Gorn.; (Poland); Journal Volume: 41:6
Subject:
01 COAL, LIGNITE, AND PEAT; COAL; PARTICLE SIZE; SHIELD SUPPORTS; YIELD STRENGTH; UNDERGROUND MINING; PRODUCTIVITY; COAL MINING; CORRELATIONS; DISTRIBUTION; LONGWALL MINING; YIELDS; CARBONACEOUS MATERIALS; ENERGY SOURCES; FOSSIL FUELS; FUELS; MATERIALS; MECHANICAL PROPERTIES; MECHANICAL STRUCTURES; MINING; POWERED SUPPORTS; SIZE; SUPPORTS; 012000* - Coal, Lignite, & Peat- Mining
OSTI ID:
6172439
Country of Origin:
Poland
Language:
Polish
Other Identifying Numbers:
Journal ID: CODEN: PRGOA
Submitting Site:
CLA
Size:
Pages: 220-223
Announcement Date:

Journal Article:

Citation Formats

Sikora, W, and Major, M. Technological possibilities for increasing coarse coal yield in the Staszic mine. Poland: N. p., 1985. Web.
Sikora, W, & Major, M. Technological possibilities for increasing coarse coal yield in the Staszic mine. Poland.
Sikora, W, and Major, M. 1985. "Technological possibilities for increasing coarse coal yield in the Staszic mine." Poland.
@misc{etde_6172439,
title = {Technological possibilities for increasing coarse coal yield in the Staszic mine}
author = {Sikora, W, and Major, M}
abstractNote = {Experiments carried out in the Staszic underground black coal mine in Upper Silesia showed that there is a correlation of coarse coal yield and yield strength of shield supports used at longwall faces. The faces were equipped with Pioma 25-45, Fazos 15-31 and Fazos 19-32 shield supports, KWB 3RDU shearer loaders and Rybnik chain conveyors. Pressure of oil in water emulsion used in the Pioma 25/45 shield supports was reduced from the recommended 30 MPa to 15 MPa or to 10 MPa. Reducing emulsion pressure (and support yield strength) caused an increase in coarse coal yield. Coarse coal yield was also increased by use of Fazos 19/32 shield supports with reduced yield strength. During the tests coarse coal yield increased 1.68% and 2.65%. Test results are shown in 3 diagrams. Investigations carried out in the Staszic mine in 1983 showed that by optimizing yield strength of shield supports coarse coal yield could be increased 2 to 8%. 6 references.}
journal = {Przegl. Gorn.; (Poland)}
volume = {41:6}
journal type = {AC}
place = {Poland}
year = {1985}
month = {Jun}
}