9-3-2016In such circumstances the circulating load would be increased Simulation 4 included changes adopted in Simulation 3 along with (a) reducing the SAG mill ball diameter from 5 to 4 (b) reducing the ball mill ball diameter from 2 5 to 2 and (c) increasing the ball charge in the ball mills from 27 5% to 30%

Get PriceSAG mills mimic the same shortcoming It follows that in order to obtain the speciﬁ c energy (SE) to achieve a certain transfer size based on the 80 per cent passing value an inefﬁ ciency factor must be applied to the SE of single stage ball mills rod mills or AG/SAG mills when calculating power according to the Bond Third Theory method

Get PriceThis is a SAG or AG mill model that estimates the specific energy consumption (E SAG) using the equations of Morrell (2004) Testwork Required The SMC™ test stored in the DWT testwork table (SMC is a Drop Weight Test) Bond ball mill work index The method requires all the parameters of the ball mill work index test to be filled in Ball

Get PriceHere is a formula that allows you to calculate the circulating load ratio around a In practice circulating loads between ball mills and classifiers are rarely circuits has resulted in certain mechanical requirements in ball mills Get Price Ball Mill Circulating Load - 911 Metallurgist

Get PriceRING-GEARED MILLS OPERATED WITH FREQUENCY CONVERTER (MUCH MORE THAN JUST VARIABLE SPEED) T R von Ow ABB Switzerland Ltd Baden-Dattwil Switzerland B Gerhard ABB Switzerland Ltd Baden-Dattwil Switzerland ABSTRACT The method of powering mills such as AG SAG and Ball has a long and technically interesting history

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Get Price* Semi-autogenous (SAG) grinding is a grinding process carried out with small amount of ball charge (4-15%) unlike ball mills and with the help of bigger parts crumbling the smaller parts of ore * To achieve this type of grinding SAG mills with large diameter and short length have been developed to take advantage of the kinetic energy of the free falling coarse particles

Get PriceBoth ball mills and HPGRs are typically used in closed circuit with classifiers There is a general consensus within the industry that classification efficiency and circulating load both have a major effect on the efficiency of closed circuit ball mills

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