Antoshchenko N.I., Tarasov V.Yu., Zakharova O.І. On establishing the fire hazard group of coal seams

Details
Parent Category: Geo-Technical Mechanics, 2018
Category: Geo-Technical Mechanics, 2018, Issue 143

Geoteh. meh., 2018, 143, 183-191

https://doi.org/10.15407/geotm2018.143.183

ON ESTABLISHING THE FIRE HAZARD GROUP OF COAL SEAMS

1Antoshchenko N.I., 1Tarasov V.Yu., 1Zakharova O.І.

1Volodymyr Dahl East Ukrainian National University

UDC 622.817.47:622.411.332

Language: Russian

Annotation. 

At comparison of diametrically  opposite groups in obedience to normative documents on their fure hazard it is set that to them is attributed mine seams with the coals of identical brands of practically all row of metamorphism from D to Т. ItЭто testifies that the Vdaf, Sp parameters and brands of coals simply does not determine the degree of transformation of initial organic material (metamorfyzm) and their properties. This parameters and brands of coals only partly correlate between itself and each of them not to a full degree reflects the degree of  coals transformation. On this account division of mine seams on eight areas, using the degree of coalfication, maintenance of general sulphur, power of seams, its structure and presence of tectonic violations did not allow simply to divide a coal seams on the degree of its fire hazard. The resulted facts testify, that the division of coal seams in obedience to a normative base on three groups on fire hazard carries a formal character and does not reflect to a full degree its real propensity to spontaneous combustion. It is marked that such mine-technical  factor as sean thicknessr is not a direct factor determining the spontaneous combustion of coals. With the increase of which, as a rule, the losses of coal in the produced space rise, that results in large probability of his spontaneous combustion. At finding of coal in an array or in pillars under act of mining pressure, largely, is exposed to violation in regional part  of seam, that results in the origin of hearths of spontaneous combustion of  coal in the wrung out area. Resulted features of influencing of seam  power  and corners of bedding on spontaneous combustion of mine seams testifies of the necessity to take into account the charts of dissection, systems of exploitation and technology of conduct of cleansing works only after reliable establishment of inclination of coals to spontaneous combustion on the degree of their transformation. Above all things it is necessary to extend the list of parameters determining the degree of metamorphism of coals. For these aims except for the output of volatile matters, specific electrical resistance, index of carbonization and brand of coal, it is necessary to attract additional parameters, more differentiated characterizing transformation of coal composition and its property. The characteristic places (areas of workings) of endogenous fires origin are subject to the additional and separate statistical (or other) study.

Keywords:

extraction areas, spontaneous combustion , endogenous fire, seam, coal.

References

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About the authors

Antoshchenko Nikolay Ivanovich, Doctor of Technical Sciences (D. Sc), Professor, Professor in Department of chemistry and industrial safety measures, Volodymyr Dahl East Ukrainian National University (VDEUNU), Severodonetsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Tarasov Vadym Yuryevich, Candidate of Technical Sciences (Ph.D.), Associate Professor, Associate Professor in Department of chemistry and industrial safety measures, Volodymyr Dahl East Ukrainian National University (VDEUNU), Severodonetsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Zakharova Olha Ivanovna Candidate of Chemical Sciences (Ph.D.), Associate Professor, Associate Professor in Department of chemistry and industrial safety measures, Volodymyr Dahl East Ukrainian National University (VDEUNU), Severodonetsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.