Rudarski radovi br 4 2011 - Institut za rudarstvo i metalurgiju Bor

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further testing, the laboratory plant was<br />designed for slag granulation which will<br />give large quantities of granulated slag,<br />needed for the experiments.<br />3. DESCRIPTION OF GRANULATOR<br />The constructed granulator is mobile,<br />so it can handle a variety of laboratory<br />smelting furnaces that have different functional<br />purpose. Furnaces are located in the<br />laboratory in the Mining and Metallurgy<br />Bor. The construction of granulator allows<br />rapidly cooling of slag by jets, which are<br />located on the front side of tank, just behind<br />the cylinder, with a submerged part<br />in cooling water. A reception cage, with<br />perforated bottom, is below a roller, which<br />accepts the resulting granules and those,<br />after discharge the total amount of slag<br />from the furnace, is removed with a crane,<br />and after filtering, stored in a cage for<br />granulated slag.<br />In figures 1 and 2, respectively, are<br />given the visual 3D reviews of constructed<br />granulator of smelter slag and one of the<br />laboratory smelting furnaces, which, as<br />already stated, are located in the laboratory<br />for pyrometallurgy in the Mining and<br />Metallurgy Institute Bor.<br />Laboratory granulator and furnace are<br />compatible and work in conjunction when<br />heated and molten slag is discharged directly<br />into the laboratory granulator for<br />rapid cooling. Then, the complex process<br />of smelter slag hardening is carried out<br />through its precrystalization and complex<br />mineralogical transformation to a complete<br />cooling of the same and formation<br />the glassy fayalite structure with the remains<br />of copper in some mineral or free -<br />metal-elemental form in the total amount<br />of about 1%.<br />During the rapid cooling of slag, gases<br />are released with water vapor, which accepts<br />the hood where the condensation of<br />water vapor is carried out, and the rest of<br />gas with non-condensed water vapor is led<br />into the system for waste gas treatment,<br />which is so constructed to serve also the<br />other laboratory smelting furnaces.<br />Fig. 1. Visual 3D review of designed granulator for smelter slag<br />No 4, 2011. 101<br />MINING ENGINEERING
The granulator, Figure 1, consists of a<br />water tank, cage, rotating drum and water<br />circulation system. The water tank is made<br />of steel sheet, thickness 1-3mm. Within it,<br />at the output end, two compartments are<br />situated for soothing the water overflow<br />and sedimentation of solid particles.<br />The tank is possible to discharge on<br />the bottom. Cage for granules is made of<br />steel sheet with perforated bottom and<br />possibility of removing from the tank.<br />Circulation system consists of a circulation<br />pump, distribution pipeline of NV25<br />nominal diameter and nozzles for water<br />Fig. 2. Laboratory smelting furnace<br />spraying. Nozzles for water spraying produce<br />a horizontal plane water jet. Electricity<br />consumption of circulation pump is<br />from 0.8 to 1.3 kW. Water flow is up to<br />5m 3 /h, working pressure in the pipeline is 6<br />bar. The total mass of granulators is about<br />200 kg. Granulator dimensions of length/<br />/width/heightare 1600mm/850mm/810mm.<br />Appearance of coupling of smelting furnace<br />and laboratory granulator is provided<br />through a technological scheme of laboratory<br />performing the procedure for smelter<br />slag granulation, shown in Figure 3.<br />No 4, 2011. 102<br />MINING ENGINEERING
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INSTITUT ZA RUDARSTVO I METALURGIJU
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SADR@AJ CONTENS M. Bugari
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vršeno je sve do 1987. god. a kona
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MINING AND METALLURGY INSTITUTE BOR
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Based on realized geological drilli
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istočno od đerdapske navlake lež
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GEOLOŠKE KARAKTERISTIKE LEŽI
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Sl. 4. Teren u domenu ležišta gli
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Ispitivanje granulometrijskog sasta
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literature data, semi-detailed polu
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GEOLOGICAL CHARACTERISTICS OF
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Fig. 4. Field in the domain of clay
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Testing of grain-size distribution
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Ova ankerna smeša će biti koriš
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This anchor mixture will be used in
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Tabela 2. Rezultati ispitivanja kam
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Sl. 4. Određivanje odnosa vlažnos
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Table 2. Test results of stone aggr
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Structural characteristics Det
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Page 56 and 57: 305 -100 Sl. 1. Izgled za
Page 58 and 59: Nakon zapunjavanja preostalog prost
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Page 64 and 65: 305 -100 Fig. 1. View of
Page 66 and 67: Fig. 3. Review of the present appea
Page 68 and 69: 4. CONCLUSION Fig. 4. Disposit
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Page 72 and 73: Dobivanje uglja iznad raskršća ot
Page 74 and 75: matematičkom modelu, a međusobne<
Page 76 and 77: 4. ZAKLJUČAK Proračunom dobi
Page 80 and 81: this stage is carried out alternate
Page 82 and 83: Rearranging the expression for the<
Page 84 and 85: 4. CONCLUSION Calculation of t
Page 88 and 89: Tabela 1. Pregled polaznih tehno ek
Page 90 and 91: 5. ZAKLJUČAK Bilansne rezerve
Page 94 and 95: Table 1. Summary of initial techno-
Page 96 and 97: 5. CONCLUSION Balance reserves
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Page 102 and 103: Sl.3. Tehnološka šema laboratorij
Page 108 and 109: Fig. 3. Technological scheme of lab
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Page 118 and 119: Tabela 3.[8] Vjerovatnost Ovim
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Page 128 and 129: Table 1. NATURAL (workpla
Page 130 and 131: will occur from exposure to hazard
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Page 140 and 141: Tabela 3. Proizvodnja pratećih pro
Page 142 and 143: Tabela 6. Prosečne neto zarade<br
Page 146 and 147: Table 1. Ore reserves in the active
Page 148 and 149: Table 3. Production of accompanying
Page 150 and 151: The average net wages have a tenden
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i p ( RZ t ) RZ = ma
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8. Iskop jama za temeije samce 1 2
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Pokazani postupak zatim analogno If it is not possible t
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Rz3 = Rz2+ t3 [ ] Rz3 = 3
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The difference in computation betwe
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Tabela 4. Zastupljenost objekata na
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8. TROŠKOVI SAOBRAĆAJNIH NEZ
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11. KRITERIJUMI VREDNOVANJA I 
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Tabela 15. Vrednosti kriterijumskih
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Table 3. Slopes of level Varia
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7. EXPLOITATION COSTS Exploita
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• changes in natural look of terr
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Fig. 2. Distribution of responses f
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7. 8. 9. 10. 11
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INSTITUT B O INSTITU
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JP PEU RESAVICA ЈП ПЕУ Р
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INSTRUCTIONS FOR THE AUTHORS M
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Rudarski radovi br 4 2011 - Institut za rudarstvo i metalurgiju Bor

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