Wyniki wyszukiwania - BazTech

1

Innowacyjny system zraszania dla wyrobisk ścianowych

Bałaga D., Siegmund M., Prostański D., Kalita M.

Maszyny Górnicze

|

2016

|

R. 34, nr 3

14--22

PL

W artykule przedstawiono innowacyjny system zraszania typu KOMAG, przeznaczony do ograniczania zapylenia generowanego podczas urabiania kombajnami w systemach ścianowych. Zaprezentowano jego budowę, parametry pracy oraz zasadę działania. Omówiono wyniki badań jego skuteczności działania przeprowadzonych w warunkach rzeczywistych.

EN

Innovative spraying system of KOMAG type, designed for reduction of airborne dust generated during longwall shearer operation in longwall panel is presented. Design of the spraying system, its operational parameters and principle of operation are described. The effectiveness of its operation in real conditions is discussed.

2

Dust control with use of air-water spraying system

Prostański D.

Archives of Mining Sciences

|

2012

|

Vol. 57, no. 4

975--990

EN

Results from testing the dust control efficiency, when using air-water spraying system in comparison to the typical water spraying system are presented in the paper. The tests were carried out in conditions of longwall mining and at the places of run-of-mine transportation. Also the results of stand tests of different types of nozzles both for air-water and for water spaying systems carried out at KOMAG’s laboratory and in real conditions are presented. The benefits resulting from air-water spraying system have been determined.

PL

W artykule przedstawiono wyniki badań skuteczności redukcji zapylenia z wykorzystaniem zraszania powietrzno-wodnego w odniesieniu do zraszania wodnego. Badania przeprowadzono w warunkach technologii eksploatacji węgla systemem ścianowym oraz w miejscu odstawy urobku. Zaprezentowano również wyniki badań stanowiskowych różnego typu dysz zraszających, zarówno dla zraszania powietrzno-wodnego, jak i wodnego, które przeprowadzono w laboratorium ITG KOMAG oraz w warunkach rzeczywistych. Określono efekty wynikające ze stosowania zraszania powietrzno-wodnego.

3

The NRPB environmental radioactivity surveillance programme

Green N.

Nukleonika

|

2001

|

Vol. 46, nr 4

127-129

EN

The National Radiological Protection Board (NRPB) has operated an environmental radioactivity surveillance programme for some years. Originally, samples of airborne dust, rainwater and milk were collected from the constituent countries of the UK. However, due mainly to the decreasing activity concentrations of radionuclides in these materials, this programme has been reduced and now forms part of contingency planning in the event of an accident. The programme can be expanded to fill the need for rapid results and answer public concerns. Other programmes within the UK complement the Board's programme.

4

Technical preparations for atmospheric radioactivity monitoring

Miyamoto Y., Oda T., Adachi T., Noguchi H., Nishimura H., Usuda S.

Nukleonika

|

2001

|

Vol. 46, nr 4

123-126

EN

To evaluate the suitability of a location for a radionuclide monitoring station of the Comprehensive Nuclear-Test-Ban Treaty (CTBT) at Takasaki, Japan, the assessment was done in terms of the concentration of natural background radioactive nuclides in airborne dust and soil samples. The samples were taken four times at the proposed site and several points around the site, then their radioactivities were measured by gamma-ray spectrometry. For the airborne dust samples, only natural background radionuclides: 212Pb, 7Be and 214Pb were detected. The radioactivity concentrations of these radionuclides varied in four sampling periods but were almost the same as the previous measurements. For the soil samples, the concentration of an anthropogenic radionuclide, 137Cs, fluctuated among the different sampling points and periods, but the concentration of 40K was constant. These concentrations were 2 to 3 times lower than those of the soil taken at JAERI Tokai. Based on these results, the proposed site was evaluated and has been accepted by the CTBT Organization as a CTBT radionuclide monitoring station.