The Ball Mill Charge: Clean the Ball Mill and accessory equipment before starting. Count and weigh the Balls by sizing group. Record the results on the Ball Count and Charge Weight Determination form. Determine a charge weight made up of exactly 285 steel Balls weighing as close to 20,125 grams as possible.
Mill sizing method. The mill sizing page: Please find below two calculators for sizing mills using the Bond and Rowland methods: Ball mill sizing: Calculator for ball mill in a single stage circuit. Rod ball mill sizing: Calculator for rod mill as first stage of the circuit and ball mill as second stage of the. circuit.
Based on his work, this formula can be derived for ball diameter sizing and selection: Dm lt;= 6 * d^0.5 where D m = the diameter of the single sized balls in mm.d = the diameter of the largest chunks of ore in the mill feed in mm. dk = the P90 or fineness of the finished product in microns with this the finished product is ...
characteristics of the ball mill discharge. Considering the Bond energy law and the correction factors by Rolland, the total specific energy E req required for comminution of mineral from the initial size F 80 to the final size P 80 in the conventional circuit is found as follows: E req = (4 ...
function of the product size in comminution. If target grind size during a project is changed, or if the test is run at the wrong product size, then it is necessarily to provide a correction. The goal of this work is to create an equation to adjust a Bond ball mill work index from one P 80 basis to another.