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TERMOGRAFSKA DETEKCIJA SPONTANE OKSIDACIJE U PODZEMNIM RUDNICIMA UGLJA.

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Title: TERMOGRAFSKA DETEKCIJA SPONTANE OKSIDACIJE U PODZEMNIM RUDNICIMA UGLJA.
Alternate Title: THERMOGRAPHIC DETECTION OF SPONTANEOUS OXIDATION IN UNDERGROUND COAL MINES.
Authors: Delić, Edin1, Savatić, Alen2, Todorović, Nenad3, Šišić, Rijad1, Nukic, Edisa4
Source: Proceedings on Quality. 2013, p281-286. 6p.
Subjects: Mine shafts, Coal mining, Excavation (Civil engineering), Mine ventilation, Oxidation, Air flow
Abstract (English): An interaction between mine shaft air and rocks at the contact surfaces occurs during an underground mining of coal after the establishment of the ventilation or after progression of excavation front. Depending on the characteristics of rock permeability, granulometric structure and deposited quantities of coal, and ventilation conditions in the premises, this interaction may be accompanied by chemical processes. An oxidation is not possible without oxygen from mine shaft air, and in places of increased intensity of oxidation or air flow leads to physical and chemical changes whose detection is possible to interpret the state of the process. Identification of hot spots can enhance the process of fire risk and safety. Thermogramic analysis allows the interpretation of temperature gradients and thermal monitoring events at the contact surfaces. In this paper the methodology thermogramic oxidation detection in underground coal mines. [ABSTRACT FROM AUTHOR]
Abstract (Bosnian): Pri podzemnoj eksploataciji uglja, nakon uspostave ventilacije ili nakon napredovanja otkopnih fronti, dolazi do interakcije između rudničkog vazduha i stijena na kontaktnim površinama. Ovisno o karakteristikama stijena, permeabilnosti, granulometrijskoj strukturi i količinama nataloženog uglja, te ventilacionim uslovima u prostorijama, ova interakcija može biti praćena hemijskim procesima. Bez kiseonika iz rudničkog vazduha oksidacija nije moguća, a na mjestima pojačanog intenziteta oksidacije ili prostrujavanja vazduha dolazi do fizičko-hemijskih promjena čijom detekcijom je moguće interpretirati stanje procesa. Identifikacijom kritičnih mjesta moguće je unaprijediti proces upravljanja požarnim rizicima i sigurnost. Termogramska analiza omogućava interpretaciju temperaturnih gradijenata i praćenje toplotnih manifestacija na kontaktnim površinama. U radu je obrađena metodologija termogramske detekcije oksidacije u podzemnim rudnicima uglja. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
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Abstract:An interaction between mine shaft air and rocks at the contact surfaces occurs during an underground mining of coal after the establishment of the ventilation or after progression of excavation front. Depending on the characteristics of rock permeability, granulometric structure and deposited quantities of coal, and ventilation conditions in the premises, this interaction may be accompanied by chemical processes. An oxidation is not possible without oxygen from mine shaft air, and in places of increased intensity of oxidation or air flow leads to physical and chemical changes whose detection is possible to interpret the state of the process. Identification of hot spots can enhance the process of fire risk and safety. Thermogramic analysis allows the interpretation of temperature gradients and thermal monitoring events at the contact surfaces. In this paper the methodology thermogramic oxidation detection in underground coal mines. [ABSTRACT FROM AUTHOR]
ISSN:15129268