Brown Coal Bulletin, 2015 (vol. 55), issue 3

Ekologické centrum Most pro Krušnohoří slaví 15 let své činnosti

Ing. Milena Vágnerová

Zpravodaj Hnědé uhlí 2015, 55(3)

Dust reduction of the technological machinery used in mines and quarries

Ing. Jaromír Täuber, Ing. Vlastimil Moni, Ph.D.

Zpravodaj Hnědé uhlí 2015, 55(3)

The increased concentration of dust in the air yield a number of health risks. The dust is perceived as significantly annoying element as well. In addition to the health risks, dust in the working environment brings in some cases safety risk of fire. The present article provides information about a possible solution to the issue of reducing the dust of machinery used in mines and quarries and about operational tests carried out in situ using and testing the rotary atomizer in practice.

Accuracy of the spatial position determination of excavator wheels

doc. Ing. Dana Vrublová, Ph.D., Ing. Roman Kapica, Ph.D., Ing. Martin Vrubel, Ph.D., doc. Ing. Eva Jiránková, Ph.D.

Zpravodaj Hnědé uhlí 2015, 55(3)

Since 2006, when the research task "Positioning of the wheel of the excavator K800/103/N1 via GPS", started, the significant move forward appeared in the area of the development of the functionality of the system itself, as well as in the number of its deployment on the giant machines. Currently, the system for determining the spatial position of the excavator wheel is used in real time on a total of 20 excavators in Severočeské doly a.s. The accuracy with which the spatial coordinates of the excavator wheel are calculated is very important for the application of the system in practice in the overburden and lignite coal mining. The article explains...

The new results of the monitoring of groundwater in the vicinity of the arising Lake Medard

Ing. Petr Valvoda, Ing. Jaromír Fultner

Zpravodaj Hnědé uhlí 2015, 55(3)

Free extension of the article issued in his Journal no. (4/2012) with the name "Lake Medard-groundwater monitoring in the vicinity of the residual pit of the former quarry Medard-Libík". The article evaluate the new facts in the hydrogeological mode of groundwater and water of old mines in the immediate vicinity of the emerging Lake Medard. Hydrogeological conditions are mapped since 2008, when the mine water pumping from the bottom of the quarry was finished, to the present. Four observation wells MPT12, MPT13, HG14 and MPT16 are used for the evaluation of the groundwater regime in the vicinity of the filled-up Lake at present. Variations in the water...

Complex information of outer dump sites - locality Malé Březno

RNDr. Jan Burda, Ph.D., Míla Pletichová, Ing. Lukáš Žižka

Zpravodaj Hnědé uhlí 2015, 55(3)

The article presents a summary of the available knowledge on the dump site Malé Březno, mainly the development of hydrological and hydro-geological characteristics of the dump and their bottom, and information about the implemented rehabilitation actions. The entire article is divided into sections that contain a description of the original state before the dump site establishing, the history of mining in the landscape, the characteristics of the material forming the dump and the ways of its creation. Further development of the hydro-geological conditions of the dump body and its bottom, and also a description of the current state of the recovery and...