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Öğe A study on the effect of process parameters in stirred ball mill(ELSEVIER SCIENCE BV, 2011) Toraman, O. Y.; Katircioglu, D.An experimental study on the fine grinding of calcite powder (d(50) = 62.16 mu m) using a 0.75 I laboratory stirred ball mill has been carried out. The effects of various operating factors, such as grinding time (min), stirrer speed (rpm), slurry density (wt.%) and ball filling ratio on fine grinding was studied under batch wet conditions using alumina balls, 95% purity with diameters 3.5-4.0 mm. A series of laboratory experiments using 24 full factorial designs was conducted to determine the optimum grinding parameters. The test results showed that the stirrer speed and grinding time have strong effects on the grinding efficiency, based on the value of specific surface area (m(2)/g). (C) 2010 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.Öğe Effect of Various Operating Factors on Wet Stirred Mill Performance(TAYLOR & FRANCIS INC, 2011) Toraman, O. Y.; Katircioglu, D.In this study, the effects of various operating factors, such as initial particle size, feed quantity, filling volume of the ball, and ball size distribution on fine grinding of calcite powders (CaCO3) were studied using a laboratory stirred mill under wet conditions. A series of laboratory experiments using 24 full factorial designs was conducted to determine the optimum grinding parameters. The main and interaction effects on the specific surface area (m2/g) of the ground product were evaluated using Yates' analysis. The test results showed that the main factors that influence the mill grinding performance are the feed quantity and the ball size distribution.Öğe WET FINE GRINDING IN A LABORATORY STIRRED BALL MILL(INT SCIENTIFIC CONFERENCE SGEM, 2010) Toraman, O. Y.; Katircioglu, D.Fine grinding involves a large number of parameters in its operation. In this study, the effect of some parameters such as initial particle size, filling volume of the ball and ball size distribution on fine grinding of calcite powders (-200, -150 and -100 mu m) using a laboratory stirred ball mill was studied under wet conditions. Zirconia beads (ZrSiO4) were used as grinding media with 1.0-1.2, 2.0-2.2 and 2.8-3.0 mm. A series of batch experiments using 2(3) full factorial designs was conducted to determine optimum grinding parameters. The main and interaction effects on specific surface area (m(2).g(-1)) in fine grinding were evaluated using Yates' analysis. The test results showed that the ball filling ratio is the most important effect.Öğe Wet fine grinding in a laboratory stirred ball mill(2010) Toraman, O.Y.; Katircioglu, D.Fine grinding involves a large number of parameters in its operation. In this study, the effect of some parameters such as initial particle size, filling volume of the ball and ball size distribution on fine grinding of calcite powders (-200, -150 and -100 ?m) using a laboratory stirred ball mill was studied under wet conditions. Zirconia beads (ZrSiO4) were used as grinding media with 1.0-1.2, 2.0-2.2 and 2.8-3.0 mm. A series of batch experiments using 23 full factorial designs was conducted to determine optimum grinding parameters. The main and interaction effects on specific surface area (m2.g-1) in fine grinding were evaluated using Yates' analysis. The test results showed that the ball filling ratio is the most important effect.