Mill diameter Mineral density Work Index Bond estimated the amount of wear in terms of kilograms per kWh based on the abrasion index A ie Wet Ball Mill kg kWh 016A i0015 033 Dry Ball Mill kg kWh 0023A i 05 Replacement Ball Size.
Jun 15 2018018332Then Maximum ball size for ball mill grinding is Bmm Example Size of the mill feed 80 passing in microns size 15000 microns 15mm Work index for the feed 18 kwhston age of mill in critical speed 70 Specific gravity of the feed 22 gmcm3 Mill effective diameter 223 m 335 is a constant used for dry grinding with.
Exploration West African Resources LtdAlso indicative Bond Ball Mill Work Index BBMWI for Sartenga primary ore is in the order of 10kwht classifying primary ore as soft This is very positive for the potential economics for the project indicating lower milling and power costs per tonne of ore in comparison to other gold projects in the.
bond ball mill work index for pure quartz Mill diameter Mineral density Work Index Bond estimated the amount of wear in terms of kilograms per kWh based on the abrasion index A ie Wet Ball Mill kg kWh 016A i0015 033 Dry Ball Mill kg kWh 0023A i 05 Replacement Ball Size.
May 14 2009018332Bond Work Index Formula Equation 911metallurgist 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 Learn More.
grams per revolution Gbp is the ball mill grindability The ball mill work index Wi kWhshort ton is calculated from the following equation Bond 19611 The mill should be cleaned by either blowing air into it or wiping the interior with a cloth and or brush The FC Bond ball mill.
XMGQ305 Grinding Bond Ball Rod Mill is mainly applied for testing the grinding work index of the material of every kinds of ores slag etc Under the specific rotation speed for dry grinding then screening the products weighing repeat operation several times getting the grinding work index kWht Technical Parameters.
A Bond ball mill work index is then performed on the mill product for the design of SAGball mill circuits This is important because it was found that there was a 115 kWht higher ball mill work index if the 335 mm ball mill test feed size is obtained by SAG mill grinding compared with crushing Bond Mill Power Equation.
Modelling the Specific Grinding Energy and Ball Mill Scaleup K G Tsakalakis and GA Stamboltzis kWhshort ton and the design w tonnage rate capacity T for the determination of the mill power draw in which the Bond work index w i is also embodied The proposed models are then used for ballmill scaleup purposes.
But the ball mill has reduced to 455 181m at the end of the same grinding period In addition the energy consumed by the ball mill for similar fineness 5 181m was approximately 300 kWht energy whereas the stirred media mill consumes approximately 174 kWht energy.
Nov 12 2015018332To go ahead a deeper study is necessary with ball mills suppliers or a specialized engineering office Two calculators have been developed for sizing mono chamber mills and two compartments mills WI work index in kWht C correction factor P80 sieve which has 80 of passing in the product.
milling chamber and also on the particle breakage sphere andor a cube located between two jaws and the work done using standard ball and rod mill respectively and are crushability index of lizenithne 128 kWhtonne the Bond.
Ball Mill Work Index tests using crushed feed and Standard Autogenous Grinding Design SAGDesign Tests patented by Outokumpu See reference 8 below The comparison of these results gives context to how the various measurements relate to each other and how they can be used to obtain an accurate design for the grinding mills required for.
The Bond ball mill work index is one of the most commonly used grindability tests in mining and is often referred to as the Bond work index The test is a lockedcycle test where ground product is removed from test cycles and replaced by fresh feed.
Bond test wis kwht rod mill ball mill 95 kwht8 9 kwhtbond standard circuit work index assume the rod mill work index of 95 applies from the actual rod mill feed sizeof 19300 m181 although some of this work might ideally be done by crushers to achieve a rod mill f80 of 16000 m to a rod 181.
Economic Benefits Of Semi Autogenous Mills Autogenous and semiautogenous mills autogenous and semiautogenous mills the optimum solution for wet grinding 2 agag mills agag mills 3 s agsag mills accomplish the same size reduction work as 2 or 3 stages intermediate size ready for final grinding in a ball mill pebble mill or.