# a mill power equation for sag mills

#### A mill power equation for SAG mills SpringerLink

Development of an equation for tumbling charge and balls plus comparison to plant data suggests that the net mill power for cylindrical semiautogenous mills can be calculated from m p 10.6 D^ 2.5 Lleft 1 1.03J right left left 1 varepsilon B right left rho s / w o right J 0.6 J B left rho b rho s / w c right right left phi c ...

#### A mill power equation for SAG mills OneMine

A mill power equation for SAG mills Export Citation Citation Style APA Austin, L. G. 1991 . A mill power equation for SAG mills. Citation Downloads Reference ...

#### power calculation formula of sag mill

randpic power calculation formula of sag mill The SAG mill had a 68 ball charge and the power consumption was 8 kWh/t, which agreed well with the expected value. 9.6. Problems. 9.1. In an SAG mill the dimensions of the mill were 9.7

#### A comparison of SAG mill power models

SAG Mill power draw models are used in mill design and grinding circuit modelling to predict how much power will be consumed by a particular mill geometry and operating configuration. This paper will compare SAG mill models by Morrell, Loveday using quotPower Numbersquot published by Barratt and Austin against several published mill surveys.

#### Modelling SAG milling power and specific energy consumption ...

ondary ball milling. In these circuits the SAG mill is the largest energy consumer. In many engineering projects either a power equation and/or a specic energy equation are used for the designing of these mills but not always with acceptable results. In general these equations are used to predict power con

#### AG Autogenous and SAG SemiAutogenous Mill Design Calculations

Obviously, the SAG mill is consuming more and the ball mill less power than was predicted by the empirical method, but the overall total is 99.5 of the predicted total. Examples The Hemlo gold project of TeckCorona 1000 mtpd provides an example of mill sizing using the empirical calculation method alone.

#### SAG Mill Grinding Circuit Design

This refers to highaspect AG/SAG mills. Ball Charge Motion inside a SAG Mill. With a higher density mill charge. SAG mills have a higher installed power density for a given plant footprint relative to AC mills. With the combination of finer grind and a lower installed power density based on the lower density of the mill charge , a typical AG ...

#### Grinding Mill Computer Model

Morgardshammar/Marcy equation. Mill diameter inside liners D D Dshell0.15 Allowance for liners Approximate mill diameter is derived from: Power 5.6115 DL24. 6 La D where a is the aspect ratio L/D derived from a regression equation on 25 manufacturers 39 mill size and power relationships For SAG mills the equation becomes Power 5.6115 ...