Comparison of Costs for Different Levels of Coal Cleaning for Coal Preparation Plants in Poland

The choice of preparation technology depends on different factors, resulting in different preparation costs. In order to determine the dependence of the preparation costs upon the complexity of cleaning technology, preparation plants are classified by complexity of preparation (technological models). In Poland, preparation plants can be classified into four types. For two chosen preparation plants, which are representatives of different technological models, the costs of cleaning different coal sizes are presented. The calculations for the analyzed variants were carried out based on discounted costs in order to unify the method of calculation. The principles, methodology and the results of the calculations are the subject of this paper.