effect of grate discharge area of sag mill

Prediction of 3D slurry flow within the grinding chamber and

finer ground material can adversely affect grinding leading to excess energy Keywords DEM SPH SAG mill grate pulp lifters slurry slurry discharge regions under the shoulder and in the toe region for low to moderate slurry loads and

A Load Interactive Model for Predicting the Performance J Stage

low discharge trunnions to screen plates grates that can be either There are however a number of areas where the Recent research at the JKMRC has developed a new AG SAG mill model which is based on charge dynamics described using the JKMRC 39 s latest model which incorporates the effect of grate design

effects of pool volume on wet milling efficiency Core

2 6 Net power draw of a ball mill as affected by slurry pool 75 2 6 1 Introduction grate discharge mill after Latchireddi and Morrell 2003 a Low flowrate

discrete element method modeling of pulp lifter McGill University

With the aim to better understand the effects of different pulp lifter designs on the discharge Figure 1 2 Schematic Diagram of a Grate Discharge Grinding Mill Napier Munn 1997 stated that the most three evolving areas are new


circuit design the various optimization steps taken and impacts together with the final The region has a long history of copper mining dating back to 1923 These included changing the SAG mill discharge grates to a larger opening size nbsp

Improved Relationships for Discharge in SAG AG Mills UQ eSpace

In order to optimize this section the skills to accurately model and of grate pulp lifter design in AG SAG mill discharge The current understanding from literature lacks knowledge of mill content size distribution and its effect on discharge

Overflow Versus Grate Discharge Ball Mills An Experimental

12 Mar 2015 It has been widely accepted to go for grate discharge ball milling mill are presented to emphasize the effect of discharge flow mechanism

Overflow VS Grate Discharge Ball or Mill Why Retrofit

19 Mar 2017 A very high impact opportunity to increase your ball mill tonnage A comparison in laboratory of Overflow Discharge Ball Mill VS Grate Discharge Ball Mill Ball Mills have a very large discharge opening or area and smaller nbsp

Over 80 comminution and minerals processing publications by Dr

The Appropriateness of the Transfer Size in AG and SAG Mill Circuit Design Proc discharge capacity of autogenous and semi autogenous mills and the effect of grate design Slurry flow in mills grate pulp lifter discharge systems Part 2

slurry pooling and transport issues in sag mills

region This is the impacting region so results in impact grinding being considerably Figure 4 Los Bronces SAG mill 2 discharge grate As illustrated in Figure nbsp

M H MOYS The design of the grate in grate lt lischarge grinding mills

The effect of grate design on the behaviour of grate discharge grinding mills of dry solids in a pilot grate discharge mill and found that the open area

Slurry flow in mills Grate pulp lifter discharge systems Part 2

Official Full Text Paper PDF Slurry flow in mills Grate pulp lifter discharge the performance of grate pulp lifter assemblies and in particular the influence The lower SDV in SAG 2 is due to its larger open area 14 versus 10 for SAG 1

startling effect of ball scats removal on sag mill CiteSeerX

As part of the P9 AMIRA site work for AngloGold a number of circuit surveys were Figure 1 The mill interior and details of the discharge grate Figure 2 Ball nbsp

TECHNICAL NOTES 8 GRINDING RP King Mineral Technologies

Figure 8 1 Different types of grinding action by the grinding media of overflow discharge mills but not to the same extent in grate discharge mills This pool is nbsp

Achievement of High Energy Efficiency in Grinding Mills at Santa Rita

The relative 39 efficiency 39 of horizontal grinding mills compared to other comminution The discharge arrangement design affects the material transport characteristics within a horizontal AG SAG Material Transport Pulp Lifter Grate Discharge leave the energy field as soon as they become smaller than the required nbsp

Optimizing your SAG mill operation International Mining

21 Mar 2007 As a result mines have shifted their emphasis in optimization from ball mills to on how efficiently the discharge pump grate and pulp lifters operates Generally the discharge from AG SAG mills consists of one or both of the The field of breakage diminishes when excessive slurry is present in the mill