The master's thesis focuses on processes of enrichment of technical stone, especially on crushing and screening. The paper first presents the theoretical basics of physical laws, that apply to processes of increasing surfaces, with an emphasis on crushing. Next part is description of separation theory, or screening of technical stone. By both processes, I have described the most common devices used in practice in crushing and screening. The practical part of this thesis is focused on the design of a model of stationary crushing and screening plant of technical stone for the need of Žusem quarry. In practical part of the thesis I also presented programs for simulating crushing and screening plants and designed three different models of stationary separation plant.
I have described programs for modelling and simulating technical stone crushing and screening plants and their mode of operation. We distinguish two types of programs; one use steady state simulation and the others use dynamic simulation. To set up the models, I used the AggFlow software package, which works on the principle of steady state simulation. I designed three different models, using a jaw crusher, impact crusher and a combination of using jaw and impact crusher.
In the last part, I have performed and analysis of the results I obtained with different models. The analysis was based on a comparison of granulation curves of the final products from all three models. The results are shown using graphs and characteristic particle diameters d50, d80 and d99. I compared the results with the requirements of the standards regulating the fields of aggregates for concrete and road construction. The graphical analysis was performed with Excel.
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