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PL
W artykule przedstawiono analizę wyników badań stanu zagrożenia wybuchem pyłu węglowego, przeprowadzonych w przekopie taśmowym na odcinku 200-metrowej strefy zabezpieczającej zbiornik wyrównawczy węgla. Na tej podstawie odniesiono się do zagadnień związanych z problematyką utrzymywania stref zabezpieczających. Po wykonaniu analizy laboratoryjnej prób pyłu kopalnianego stwierdzono, że wymogi przepisów górniczych dotyczące zawartości części niepalnych stałych w pyle kopalnianym w strefie zabezpieczającej oraz w miejscu zabudowy pyłowej zapory przeciwwybuchowej nie były spełnione. Przykład badanej strefy zabezpieczającej dowiódł, że stosowane w kopalniach odnawianie stref zabezpieczających z użyciem jednakowej ilości pyłu kamiennego wzdłuż całej strefy, jest działaniem nieskutecznym. Zaproponowano rozwiązanie powyższego problemu.
EN
The article presents the analysis of research results of the treat of coal dust explosion which were conducted in crosscut tape, on section of 200 meters safety zone of coal equalizing tank. Based on analysis, the issues related to the problem of maintaining safety zone were discussed. After laboratory test of sample of mine dust found that the provisions regarding content of non-combustible solids in mine dust in the safety zone and in the location of explosion proof ventilation structure were no fulfilled. The example of the tested safety zone proved that practiced in mines refurbishment of the safety zone with equal amount of stone dust along the whole zone, is the ineffective action. The solution of this problem has been suggested.
2
Content available remote SHEER “smart” database: technical note
67%
EN
The SHEER database brings together a large amount of data of various types: interdisciplinary site data from seven independent episodes, research data and those for the project results dissemination process. This concerns mainly shale gas exploitation test sites, processing procedures, results of data interpretation and recommendations. The smart SHEER database harmonizes data from different fields (geophysical, geochemical, geological, technological, etc.), creates and provides access to an advanced database of case studies of environmental impact indicators associated with shale gas exploitation and exploration, which previously did not exist. A unique component of the SHEER database comes from the monitoring activity performed during the project in one active shale gas exploration and exploitation site at Wysin, Poland, which started from the pre-operational phase. The SHEER database is capable of the adoption of new data such as results of other Work Packages and has developed an over-arching structure for higher-level integration.
4
Content available Radon intercomparison tests : Katowice, 2016
51%
EN
At the beginning of the year 2016, the representatives of the Polish Radon Centre decided to organize proficiency tests (PTs) for measurements of radon gas and radon decay products in the air, involving radon monitors and laboratory passive techniques. The Silesian Centre for Environmental Radioactivity of the Central Mining Institute (GIG), Katowice, became responsible for the organization of the PT exercises. The main reason to choose that location was the radon chamber in GIG with a volume of 17 m3 , the biggest one in Poland. Accordingly, 13 participants from Poland plus one participant from Germany expressed their interest. The participants were invited to inform the organizers about what types of monitors and methods they would like to check during the tests. On this basis, the GIG team prepared the proposal for the schedule of exercises, such as the required level(s) of radon concentrations, the number and periods of tests, proposed potential alpha energy concentration (PAEC) levels and also the overall period of PT. The PT activity was performed between 6th and 17th June 2016. After assessment of the results, the agreement between radon monitors and other measurement methods was confirmed. In the case of PAEC monitors and methods of measurements, the results of PT exercises were consistent and confirmed the accuracy of the calibration procedures used by the participants. The results of the PAEC PTs will be published elsewhere; in this paper, only the results of radon intercomparison are described.
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