Temat: pyl weglowy - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Experimental study of coal dust deposition in mine workings with the use of empirical models
Autorzy:: Prostański, D.
Powiązania:: https://bibliotekanauki.pl/articles/970689.pdf
Data publikacji:: 2015
Wydawca:: Główny Instytut Górnictwa
Tematy:: pył węglowy
pył kopalniany
zagrożenie pyłowe
coal dust
mine dust
dust hazard
Opis:: Empirical models, developed on the basis of the results of tests on dust deposition and changes in concentration of dust in the protective zone, are the proposed tools to reduce risk of coal dust explosion. The paper presents possible applications of such models to assess and monitor volume of dust in a protective zone. Underground tests were conducted in the tailgate and headgate of longwall 121 of Brzeszcze Coal Mine. Basing on the analysis, the empirical models describing relationship between changes in dust concentration, and dust deposition in a protective zone of roadways: headgate and tailgate of longwall 121 in Brzeszcze Coal Mine, were developed. The developed models show a possibility of predicting explosive dust deposition in a protective zone. After additional research is run, it is planned to generalise the developed empirical model, which will enable monitoring of protective zones.
Źródło:: Journal of Sustainable Mining; 2015, 14, 2; 108-114
2300-1364
2300-3960
Pojawia się w:: Journal of Sustainable Mining
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Evaluation of the effectiveness of coal and mine dust wetting
Autorzy:: Cybulski, K.
Malich, B.
Wieczorek, A.
Powiązania:: https://bibliotekanauki.pl/articles/92175.pdf
Data publikacji:: 2015
Wydawca:: Główny Instytut Górnictwa
Tematy:: pył węglowy
pył kopalniany
chemikalia
zagrożenie pyłowe
coal dust
mine dust
chemicals
dust hazard
Opis:: One of the methods of fighting the risk of coal dust's explosion is its neutralization through washing and misting of mining sediment which lays on the mining excavation and through misting on the organs of hewer machines or on the dumpings and inundations of mining product's output. Coal dust, especially its smallest fractions which create the biggest risk of explosion, is generally the substance which cannot be easily moistened by water. Water solutions of different wetting agents are applied in hard bituminous coal mines in order to enhance the effectiveness of coal dust's moistening during the washing and misting. Therefore it is indicated to conduct research and evaluate the effectiveness of its effects in order to select optimally the type of wetting agents and their concentration in water solutions depending on coal dust's properties (type of coal the particular dust comes from) and on percentage participation of non-inflammable parts which are constant in mine dust. This paper presents a method to evaluate the effectiveness of coal or mine dust's moistening conducted with the use of water solutions of wetting agents in order to deprive the dust of its volatility, is based on the method of measurement of time of complete moistening of that dust's one-gram samples with the use of “pure” water or water solutions of the particular wetting agent.
Źródło:: Journal of Sustainable Mining; 2015, 14, 2; 83-92
2300-1364
2300-3960
Pojawia się w:: Journal of Sustainable Mining
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: The level of securing dust deposits against the possibility of coal dust explosion in the drilled dog headings
Autorzy:: Malich, Bogdan
Cybulski, Krzysztof
Wysocka, Małgorzata
Skubacz, Krystian
Michałek, Aneta
Urban, Paweł
Powiązania:: https://bibliotekanauki.pl/articles/1839064.pdf
Data publikacji:: 2021
Wydawca:: Główny Instytut Górnictwa
Tematy:: coal dust
coal dust explosions
dust prevention
safety zones
pył węglowy
wybuch pyłu węglowego
zapobieganie zapyleniu
strefy bezpieczeństwa
Opis:: The article presents the analysis how the real coal dust explosion hazard occurs at the distance of the initial 200m of the protective zone maintained along the entire length of driven inclined drift II - face 567 in Polish colliery KWK „BRZESZCZE”, which was used during realization of the project titled Modelling of the mechanism of explosive coal dust deposition in the vicinity of mined faces in terms of identification, assessment and levelling the possibility of its explosion financed by the National Centre for Research and Development in Poland. The mine dust level was between 0.014 kg/m3 and 0.193 kg/m3, and the coal dust level between 0.003 kg/m3 and 0.051 kg/m3, at the content of incombustible solids between 62.9% and 96.9%. In the analysed fragment of the mine working there was settled dry and volatile mine dust of transient water content between 0.1% and 3.8%. In a few measurement points (sidewalls, floor, and the dust explosion barrier) it was observed that the content of incombustible solids was lower than required by the regulations (unsecured mine dust), which resulted from the insufficient application of stone dust and increased intensity of dust settlement, especially in the area near the longwall face. Analyses of the fraction distribution of the settled mine dust showed the presence of fine dust, while coarser fractions were found in the places of lowered content of non-combustible solids. The conclusions indicate that it is necessary to modify the currently applied dust-explosion prevention measures, which ought to adjust the amount of stone dust applied in given sections of the safety zone and the stone dust ought to be applied with more diligence.
Źródło:: Journal of Sustainable Mining; 2021, 20, 1; 39-48
2300-1364
2300-3960
Pojawia się w:: Journal of Sustainable Mining
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "pyl weglowy" wg kryterium: Temat

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język