data regarding ball mill calculation pdfs haiti

MODELING THE SPECIFIC GRINDING ENERGY AND BALL

21 CONCLUSIONS Continued In the present work, equations were also derived, giving: zthe ball-mill power drawP as a function of its dimensions: internal mill diameter D and length L, zthe ball-mill power drawP as a function of the feed D f (mm) and the product size d (mm), the Bond work index w i (kWh/short ton) and the mill throughput T (short ton/h), zthe ball-mill dimensions (D and L), when ....

Know More

Ball mill media optimization

Example calculation of test mill grinding rates Whether from a plant survey or torque-mill test, the calculation method of the mill energy specific cumulative grinding rates is shown by the following example Using plant data, the value of E is the specific energy input to the solid material as it ,...

Know More

steel balls for mills pdf

Calculate and Select Ball Mill Ball Size for Optimum Grinding In Grinding, selecting (calculate) the correct or optimum ball size that allows for the best and optimum/ideal or target grind size to be achieved by your ball mill is an important thing for a Mineral Processing Engineer AKA Metallurgist to do...

Know More

Our modern vertical roller mill takes you further

The industry best in energy-efficient grinding, the OK Mill uses five to ten percent less power than other vertical roller mills and 30 to 50 percent less energy than conventional ball mills Easy operation and maintenance Worn roller grinding surfaces can either be replaced or re-welded inside the vertical roller mill...

Know More

MATERIAL RETENTION TIME IN A BALL MILL & VRM

Aug 11, 2010· Re: MATERIAL RETENTION TIME IN A BALL MILL & VRM You could do that by measuring the material flowrate Q[tons/h] through the mill as well as the quantity M[tons] of material that accumulates within the mill The retention time, also called residence time, is the ratio (M/Q) [h]...

Know More