calculating re circulating load in closed circuit ball mill

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Common Basic Formulas for Mineral Processing
Then the circulating load ratio equals (31.00) / (1.000.190) or 2.47 (or 247%) and the circulating tonnage is 2.47 X 300 or 741 tons. A more accurate basis for calculation of tonnage in a grinding circuit is the screen analysis.

Circulating load calculation in mineral processing closed
A problem for solving mass balances in mineral processing plants is the calculation of circulating load in closed circuits. A family of possible methods to the resolution of this calculation is the iterative methods, consisting of a finite loop where each iteration the initial solution is refined in order to move closer to the exact solution.

(PDF) Effect of circulating load and classification
The resulting model of the relative capacity of closed milling circuits as a function of circulating load and classification efficiency is described by Equation 2 (Magdalinovic, 1991): 1 1 C1 1.5 C2 Q2 E2 KQ (2) Q1 1 1 C2 1.5 C1 E1 Where: KQ relative capacity of the milling circuit (fraction) Q1, Q2 milling circuit capacity under different circulating load and classification efficiency C circulating load (fraction) E classification efficiency (fraction) Figure 1 Closed circuit ball mill

High recirculating loads in Ball Mill Circuits Grinding
In my experience, from 200350% recirculating is "normal" for a closed circuit ball mill (reverse or direct). The selection of the hydrocyclones, pumps and piping sizes all go hand in hand with mill

Ball Mill Circulating Load Mineral Processing Metallurgy
The circulating loads generated in a typical ball mill cyclone circuit contain a small fraction of bypassed fines. The concept that high circulating loads will result in overgrinding can be refuted by regarding increases in circulating load in the same vein as multistage grinding. That is, for every incremental increase in circulating load of 100%, an additional stage of grinding and classification occurs. With high circulating

Circulating Load Calculation Formula
For example your ball mill is in closed circuit with a set of cyclones. The grinding mill receives crushed ore feed. The pulp densities around your cyclone are sampled and known over an 8hour shift, allowing to calculate corresponding to circulating load ratios and circulating load tonnage on tons/day or tons/hour. This is %Solids/Densities Based Circulating Load Calculation Method