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268 Emilian Moşneguţu et al. Fig. 7 – Moving the particle solid on oscillating surface. 11.0 Axis OY movement (mm) 8.8 6.6 4.4 2.2 0.0 0 100 200 6.5 0.0 Axis OX movement (mm) F ig. 8 – 3D trajectory of a particle on the oscillating surface. Fig. 9 – Velocity of solid particle on surface oscillating. 13.0 300 32.5 26.0 19.5 Axis OZ movement (mm)
Bul. Inst. Polit. Iaşi, t. LVIII (LXII), f. 4, 2012 269 4. Conclusions 1. The separation of solid particles after size is a complex process influ enced by several factors, which depend of the particles and characteristics of equipment used. 2. In the experimental measurements were used real particles and from analysis of the Triplot chart shows that particle is used as lamellar particle. 3. Because tyrants, stand used in the experimental determinations executed oscillations along three axes. 4. By using two video cameras with purpose to tracking the solid particle trajectory was be achieved, with help of SynthEyes program, obtaining a threedimensional trajectory. 5. Also from experimental data could determine the variation of solid particle velocity on the oscillating surface. REFERENCES Dong K.J., Yu A.B., Brake I., DEM Simulation of Particle Flow on a Multi-deck Banana Screen. Minerals Engineering, 22, 910-920 (2009). Li J. , Webb C., Pandiella S.S., Campbell G.M., Discrete Particle Motion on Sieves — A Numerical Study Using the DEM Simulation. Powder Technology, 133, 1-3, 30, 190-202 (July 2003). Moşneguţu E., Panainte M., Savin C., Măcărescu B., Nedeff V., Separarea amestecurilor de particule solide în curenţi de aer verticali. Ed. Alma Mater, Bacău, 2007. Nedeff V., Moşneguţu E., Băisan I., Separarea mecanică a produselor granulometrice şi pulverulente <strong>din</strong> industria alimentară. Ed. Tehnica-Info, Chişinău, 2001. Shilin Xie, Siu Wing Or, Helen Lai Wa Chan, Ping Kong Choy, Peter Chou Kee Liu, Analysis of Vibration Power Flow from a Vibrating Machinery to a Floating Elastic Panel. Mechanical Systems and Signal Processing, 21, 1, 389-404 (January 2007). Sol<strong>din</strong>ger M., Transport Velocity of a Crushed Rock Material Bed on a Screen. Minerals Engineering, 15, 1-2, 7-17 (January 2002). Stoic ovici D.I., Ungureanu M., Ungureanu N., Bănică, M., A Computer Model for Sieves’ Vibrations Analysis, Using an Algorithm Based on the “False-position” Method. American Journal of Applied Sciences, 5, 12, 48-56 (2008). Szymański T., Wodziński P., Scre ening on a Screen with a Vibrating Sieve. Physicochemical Problems of Mineral Processing, 37, 27-36 (2003). Trumic M., Magdalinovic N., New Model of Screening Kinetics, Minerals Engineering, 24, 42-49 (2011). Tsakalakis K., Some Basic Factors Affecting Scree Performance in Horizontal Vibrating Screens. The European Journal of Mineral Processing and Environmental Protection, I, 42-54 (2001). Xiao Jianzhang, Tong Xin, Particle Stratification and Penetration of a Linear Vibrating Screen by the Discrete Element Method. International Journal of Mining Science and Technology (2012).
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