Modern technical and IT solutions in the System of Quality Control of the Run of Mine at LW “Bogdanka” S.A. coal mine

¹ LW “Bogdanka” S.A., Bogdanka St., 21-013 Puchaczów, Poland
² Mineral and Energy Economy Research Institute, Polish Academy of Sciences, 7A Wybickiego St., 31-261 Krakow, Poland

^* Corresponding author: skaczmarzewski@min-pan.krakow.pl

Abstract

In underground coal mines, one of the primary sources of waste rock in the ore is the phenomenon of roof fall. This phenomenon increases the contamination of the ROM (Run of Mine) with waste rock, which in turn increases the operating costs of the mine. Exploitation of thinner and thinner seams, the use of plough technology, the increasing speed of mining – all these factors related to the mining technology used significantly affect the cleanliness of the coal seam exploitation. More accurate identification of the causes of increased spoil contamination by waste rock and forecasting its level at the stage of mining planning can allow the application of appropriate countermeasures, often even before the start of mining. The authors believe that monitoring the amount and sources of waste rock in longwalls and headings can provide a basis for developing a method for forecasting the mining plant’s yield. The article presents methods of modeling roof rock fall, which are the result of the work of the Team of the Division of Mineral Resources Acquisition of the Polish Academy of Sciences and LW “Bogdanka” S.A. In the future the proposed methodology can be used to analyze the course of roof rock fall, calculate the mass of roof rock fall, and calibrate a continuous system for measuring the quality of ROM in mine excavations.