ball mill calculation in ore

ball mill calculation in ore

  • Calculate and Select Ball Mill Ball Size for Optimum Grinding

    Calculate and Select Ball Mill Ball Size for Optimum Grinding. Based on his work this formula can be derived for ball diameter sizing and selection Dm <= 6 (log dk) * d^0.5 where D m = the diameter of the singlesized balls in mm.d = the diameter of the largest chunks of ore in the mill feed in mm.

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  • Ball Mill Design/Power Calculation

    Ball Mill Power Calculation Example #1. A wet grinding ball mill in closed circuit is to be fed 100 TPH of a material with a work index of 15 and a size distribution of 80% passing ¼ inch (6350 microns). The required product size distribution is to be 80% passing 100 mesh (149 microns).

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  • Grinding in Ball Mills Modeling and Process Control

    Keywords Ball mills grinding circuit process control. I. Introduction Grinding in ball mills is an important technological process applied to reduce the size of particles which may have different nature and a wide diversity of physical mechanical and chemical characteristics. Typical examples are the various ores minerals limestone etc.

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    sagdesign

    testing measures the macro and micro ore hardness by means of a SAG mill test and a standard Bond Ball Mill Work Index test on SAG ground ore. Ore feed is prepared from a minimum of 10 kg of split diamond drill core samples by stage crushing the ore in a jaw crusher to 80% product passing 19 mm.

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  • MODELING THE SPECIFIC GRINDING ENERGY AND BALLMILL

    Ball mill power draw predicted from the Denver slide rule kW 0 200 400 600 Calculated ballmill power draw from the m odel derived kW Data compared Line y=x Fig. 2. Comparison of the ball mill power draw from the Denver slide rule and the proposed model. Dashed line corresponds to y=x.

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  • Ball Mills Mine Engineer.Com

    Grinding Ball Mills. Ball Mills are generally used to grind material 1/4 inch and finer down to the particle size of 20 to 75 microns. To achieve a reasonable efficiency with ball mills they must be operated in a closed system with oversize material continuously being recirculated back into the mill

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