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Assessing dynamics of ash content formation in coal at a working face in mines

Journal Article:

Abstract

Factors which influence ash content in coal mined at a working face are analyzed: ash content in coal, stability of rock layers surrounding a coal seam, mechanical and physical properties of the direct roof. A mathematical model of ash content formation at a working face is described. On the basis of the model a computer program has been constructed. The program is used for calculating the mean value of ash content in coal and the standardized deviation. The program considers all causes of ash fluctuation in coal such as mining conditions, coal seam thickness, fluctuations in coal seam thickness, mechanical and physical properties of rocks surrounding a coal seam, particularly in the direct roof, mining systems, narrow or wide web shearer loaders, powered supports, hydraulic props, timber friction props with timber roof bars or with steel roof bars. A classification of rocks considering roof stability used by the program is described. A scheme of the program is given. Examples of using the program for forecasting ash content in coal and ash content fluctuations in Donbass mines are evaluated. (In Russian)
Publication Date:
May 01, 1983
Product Type:
Journal Article
Reference Number:
EDB-84-060276
Resource Relation:
Journal Name: Ugol' Ukr.; (Ukrainian SSR); Journal Volume: 5
Subject:
01 COAL, LIGNITE, AND PEAT; ASHES; FORECASTING; COAL; CHEMICAL COMPOSITION; COAL MINING; COMPUTER CODES; CORRELATIONS; CUTTING; LONGWALL MINING; MATHEMATICAL MODELS; POWERED SUPPORTS; QUANTITY RATIO; ROOFS; STABILITY; STRATA CONTROL; SUPPORTS; UNDERGROUND MINING; CARBONACEOUS MATERIALS; ENERGY SOURCES; FOSSIL FUELS; FUELS; MACHINING; MATERIALS; MECHANICAL STRUCTURES; MINING; RESIDUES; 010600* - Coal, Lignite, & Peat- Properties & Composition; 012000 - Coal, Lignite, & Peat- Mining
OSTI ID:
5164260
Country of Origin:
Ukraine
Language:
Russian
Other Identifying Numbers:
Journal ID: CODEN: UGOUA
Submitting Site:
HEDB
Size:
Pages: 41-43
Announcement Date:

Journal Article:

Citation Formats

Maidukov, G L, and Lobkin, V M. Assessing dynamics of ash content formation in coal at a working face in mines. Ukraine: N. p., 1983. Web.
Maidukov, G L, & Lobkin, V M. Assessing dynamics of ash content formation in coal at a working face in mines. Ukraine.
Maidukov, G L, and Lobkin, V M. 1983. "Assessing dynamics of ash content formation in coal at a working face in mines." Ukraine.
@misc{etde_5164260,
title = {Assessing dynamics of ash content formation in coal at a working face in mines}
author = {Maidukov, G L, and Lobkin, V M}
abstractNote = {Factors which influence ash content in coal mined at a working face are analyzed: ash content in coal, stability of rock layers surrounding a coal seam, mechanical and physical properties of the direct roof. A mathematical model of ash content formation at a working face is described. On the basis of the model a computer program has been constructed. The program is used for calculating the mean value of ash content in coal and the standardized deviation. The program considers all causes of ash fluctuation in coal such as mining conditions, coal seam thickness, fluctuations in coal seam thickness, mechanical and physical properties of rocks surrounding a coal seam, particularly in the direct roof, mining systems, narrow or wide web shearer loaders, powered supports, hydraulic props, timber friction props with timber roof bars or with steel roof bars. A classification of rocks considering roof stability used by the program is described. A scheme of the program is given. Examples of using the program for forecasting ash content in coal and ash content fluctuations in Donbass mines are evaluated. (In Russian)}
journal = {Ugol' Ukr.; (Ukrainian SSR)}
volume = {5}
journal type = {AC}
place = {Ukraine}
year = {1983}
month = {May}
}