20.500.12556/RUL-130881 Optimiranje tehnološkega procesa drobljenja in separiranja tehničnega kamna magistrsko delo Optimization of technological process of technical stone crushing and separation master's thesis Magistrska naloga se osredotoča na procese bogatenja tehničnega kamna, predvsem na procesa drobljenja in separiranja. V nalogi so najprej predstavljene teoretične osnove fizikalnih zakonitosti, ki veljajo pri procesih večanja površin s poudarkom na drobljenju. Sledi opis teorije procesa separiranja oziroma sejanja tehničnega kamna. Pri obeh procesih sem opisal najpogostejše naprave, ki so v uporabi v praksi pri drobljenju in sejanju. Praktičen del naloge se osredotoča na zasnovo stacionarnega modela separacije tehničnega kamna na primeru kamnoloma Žusem. V praktičnem delu naloge sem tudi predstavil programe za simuliranje stacionarnih separacij in zasnoval tri različne modele stacionarne separacije. Opisal sem programe za modeliranje in simuliranje separacij tehničnega kamna in njihov način delovanja. Ločimo dva tipa programov, to so s simulacijo stabilnega stanja in dinamično simulacijo. Za postavitev modelov sem uporabil programski paket AggFlow, ki deluje na principu simulacije stabilnega stanja. Zasnoval sem tri različne modele, z uporabo čeljustnega drobilca, z odbojnim drobilcem in kombinacijo uporabe čeljustnega in odbojnega drobilca. V zadnjem delu sem opravil analizo rezultatov, ki sem jih pridobil z različnimi modeli. Analiza je temeljila na primerjavi granulacijskih krivulj končnih produktov iz vseh treh modelov. Rezultati so prikazani s pomočjo grafov in karakterističnih premerov zrn d50, d80 in d99. Rezultate sem primerjal z zahtevami standardov, ki urejajo področji agregatov za betone in gradnje cest. Grafično analizo rezultatov sem opravil s pomočjo programa Excel. 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. drobljenje sejanje separacija simulacija tehnični kamen crushing screening processing plant simulation technical stone true false false [B. Mesarič] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2021-09-18 09:00:02 2021-09-18 09:00:06 2022-09-09 04:18:31 0000-00-00 00:00:00 2021 0 Ljubljana 0 Ljubljana XVII, 67 f. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 622 81886 84833283 8778.pdf 8778.pdf 1 3CC8F340255E95E8A7CA71817519A745 4390b38b69dc3f218bd117b67d88ab34439d295b1989dcdb8dbea1e3e4bf54aa cb2ef448-184d-11ec-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=148056 Naravoslovnotehniška fakulteta 0 0 0