bond work index ball mill design and safety factors

Circulating load
Test design Slide 14 Variation of Bond work index with circulating load CL = 250% [7] Variation of Bond work index with circulating load CL = 400%[7] 15 Slide 15 Conclusions There are two strategy based on the change of feed rate or added water to classifier...

FAQ  New Concept Projects
The test work will entail industry standard tests such as the Bond Rod Mill Work Index, Bond Ball Mill Work Index, JK/DWi tests and then some specific batch mill tests The results of the test work will then be used to determine the parameters required for Simulation...

Model:Bond/Barratt SABC Models
The resultant operating work index of the ball mill will vary according to the ratio of the ball mill, rod mill and crushing work index values and is in the range of 80% of the measured ball mill work index ,...

Bond Work Index Formula
See this useful summary Table of Bond Work Index by Minerals For any circuit, whether a crushing circuit, a rod mill, or a closed ball mill circuit, the Work Index always means the equivalent amount of energy to reduce one ton of the ore from a very large size to 100 um , The basic work index equation is: , The average useful work input ....

Construction and workin of ball mill
Feb 14, 2016· Construction and workin of ball mill , grinding and design and construction of ball mill Design of the 40 foot SAG Mill Installed at the Cadia Gold , ESSA: Bond, Work Index, Mill, Abrasion ....

Benchmarking: Bond
Assume the crushing work index is similar to the rod mill: 20 (metric) Default SSBM contingency for SABC circuit is 010 Assume liner thickness of 6 inches in SAG, 45 inches in ball mill...

design features of ball mills
The basic parameters used in ball mill design (power calculations), rod mill or any tumbling mill sizing are; material to be ground, characteristics, Bond Work Index Read More design features of ball mill  ,...

Mill (grinding)
Bond for 50 mm >d >005 mm , W is the work index measured in a laboratory ball mill (kilowatthours per metric or short ton) P 80 is the mill circuit product size in micrometers; F 80 is the mill circuit feed size in micrometers Rod mill A rotating drum causes ,...

TECHNICAL NOTES 8 GRINDING R P King
83 Centrifugal force outward Fc mp& 2 Dm 2 (81) & is the angular velocity, mp is the mass of any particle (media or charge) in the mill and Dm is the diameter of the mill inside the liners Gravitational force Fg mpg (82) The particle will remain against the wall if these two forces are in balance ie...

A Method of C alculating Autogenous/ Semi
using Bond rod mill work index (RMWI), and Bond ball mill work index (BMWI) However, the author has developed a , factor to the Bond SE value corrections are made for the SG, Ab values and low aspect (LA) mill conﬁ guration if applicable , an inefﬁ ciency value in the region of 125 because the design 80 per cent passing value is not ....

Ball mill ball size calculation
Oct 21, 2016· )Bond Ball Mill LaarmannThe LAARMANN Ball / Rod Mill is designed to meet the industrial This index is used to calculate the power draw requirements of a rod mill...

Technical Information
Only relatively small quantities of sample are required and can be reused to conduct Bond ball work index tests The results from conducting the SMC Test® are used to determine the socalled dropweight index (DWi) which is a measure of the strength of the rock as well as the comminution indices Mia, Mih and Mic...

Bond Ball Mill Work Index Determination
Bond Ball Mill Work Index Determination Prompt : Caesar is a famous mining equipment manufacturer wellknown both at home and abroad, major in producing stone crushing equipment, mineral separation equipment, limestone grinding equipment, etc...

Metcom Expertise
The Bond Ball Mill Test Work Index of the ore was measured to be 158 kWh/t Then, taking Work Index Efficiency as the ratio of Test WI / Operating WI, it equals 158 / 144 = 110, or 110% This circuit is approximately 10% more efficient than the average circuit upon which the Bond design method is ,...

test method for bond ball mill work index
P i and P in the formula for Bond grinding work indexIt is described that only by one accurate test of work index of rod grinding or ball grinding,can the work index of the rod or ball, and jaw crusher and the Bond work indexes of ball mill by different crushing manners at d, for calculating the Bond work index of ball mill of Bangpu MoCu ....

price of index bond ball mill
bond work index ball mill design and safety factors factors affecting functioning of rod mill bond work index ball mill design and safety factors factors , Bond Work Index, bulk , If the ball mill Get Price; , Contact Supplier price of bond ball mill...

Ball Mill Design/Power Calculation
Dec 12, 2016· The basic parameters used in ball mill design (power calculations), rod mill or any tumbling mill sizing are; material to be ground, characteristics, Bond Work Index,...