You need JavaScript to view this

Effect of coal stress on grain size of the gotten

Journal Article:

Abstract

Presents investigation results on the effect of seam stress and strain state on winning as measured by the grain size of the gotten. The investigations were carried out at the Institute of Mining Mechanization of the Silesian Politechnical where the relations between parameters of seams and cutters and their effect on coal grain size and energy consumption have been studied for several years. The effect was examined on coal samples taken from 4 mines in the Upper Silesian coal basin using a model of the system: seam - cutter. Cubic samples (400x400x400 mm) were tested on the CMG KOMAG test stand equipped with the POS-1 cutting apparatus. Two types of coal were distinguished: that particularly sensitive to increased pressure on seam and that only negligibly susceptible. Corresponding graphs of coal grain size versus vertical pressure are shown. A function has been developed that characterizes this sensitivity depending on a material parameter that can be determined by workability tests. The relationship between coal strength and grain size yield greater than 10 mm in the gotten depending on dynamic crushability of coal is shown in graphs. 6 refs.
Authors:
Publication Date:
Sep 01, 1988
Product Type:
Journal Article
Reference Number:
CLA-89-030588; EDB-89-029852
Resource Relation:
Journal Name: Przegl. Gorn.; (Poland); Journal Volume: 44:9
Subject:
01 COAL, LIGNITE, AND PEAT; COAL MINING; PRESSURE EFFECTS; GRAIN SIZE; COMMINUTION; CORRELATIONS; CRUSHING; CUTTING; ENERGY CONSUMPTION; FRAGMENTATION; MATERIALS TESTING; PARAMETRIC ANALYSIS; POLAND; ROCK MECHANICS; SENSITIVITY ANALYSIS; STRAINS; STRESSES; TEST FACILITIES; TESTING; UNDERGROUND MINING; CRYSTAL STRUCTURE; DEVELOPING COUNTRIES; EASTERN EUROPE; EUROPE; MACHINING; MECHANICS; MICROSTRUCTURE; MINING; SIZE; 012031* - Coal, Lignite, & Peat- Underground Mining- Strata Mechanics & Control- (1987-)
OSTI ID:
6471886
Research Organizations:
Politechnika Slaska, Gliwice (Poland). Instytut Mechanizacji Gornictwa
Country of Origin:
Poland
Language:
Polish
Other Identifying Numbers:
Journal ID: CODEN: PRGOA
Submitting Site:
CLA
Size:
Pages: 31-35
Announcement Date:

Journal Article:

Citation Formats

Sikora, W, and Tront, A. Effect of coal stress on grain size of the gotten. Poland: N. p., 1988. Web.
Sikora, W, & Tront, A. Effect of coal stress on grain size of the gotten. Poland.
Sikora, W, and Tront, A. 1988. "Effect of coal stress on grain size of the gotten." Poland.
@misc{etde_6471886,
title = {Effect of coal stress on grain size of the gotten}
author = {Sikora, W, and Tront, A}
abstractNote = {Presents investigation results on the effect of seam stress and strain state on winning as measured by the grain size of the gotten. The investigations were carried out at the Institute of Mining Mechanization of the Silesian Politechnical where the relations between parameters of seams and cutters and their effect on coal grain size and energy consumption have been studied for several years. The effect was examined on coal samples taken from 4 mines in the Upper Silesian coal basin using a model of the system: seam - cutter. Cubic samples (400x400x400 mm) were tested on the CMG KOMAG test stand equipped with the POS-1 cutting apparatus. Two types of coal were distinguished: that particularly sensitive to increased pressure on seam and that only negligibly susceptible. Corresponding graphs of coal grain size versus vertical pressure are shown. A function has been developed that characterizes this sensitivity depending on a material parameter that can be determined by workability tests. The relationship between coal strength and grain size yield greater than 10 mm in the gotten depending on dynamic crushability of coal is shown in graphs. 6 refs.}
journal = {Przegl. Gorn.; (Poland)}
volume = {44:9}
journal type = {AC}
place = {Poland}
year = {1988}
month = {Sep}
}