-
Sag is an acronym for semiautogenous grinding sag mills are autogenous mills that also use grinding balls like a ball mill a sag mill is usually a primary or first stage grinder sag mills use a ball charge of 8 to 21 6 7 the largest sag mill is 42 128m in diameter powered by a 28 mw 38000 hp motor 8 a sag mill with a 44
read more
-
The sag mill trommel undersize is combined with the ball mills discharge and pumped to two parallel packs clusters of twelve 660 mm diameter cyclones the cyclone underflow from each line reports to a ball mill while the cyclone overflow is directed to the flotation circuit the designed ball milling circuit product is 80 passing 150 m
read more
-
The copper mountain mill flowsheet is currently a conventional twostage crushing sag pebble crusher ball milling and sulphide flotation circuit design the current capacity supports 40000 t per day of ore processing the 45ktpd expansion that is currently underway will add a third ball mill in parallel with the two existing ball mills
read more
-
Pdf on jan 1 2011 a mainza and others published rom ball mills a comparison with agsag milling find read and cite all the research you need on researchgate
read more
-
Many circuit configurations are possible but essentially the autogenous or sag mill is operated as a singlestage primary mill or it can be followed by secondary pebble or ball milling the semi autogenous mill is often operated in closed circuit with a trommel screen or external vibrating screen classifying the discharge
read more
-
Nov 30 2020 the copper mountain mill flowsheet is currently a conventional twostage crushing sag pebble crusher ball milling and sulphide flotation circuit design the
read more
-
Grinding circuit design tools including for sag millball mill circuits and geometallurgy energy models are available to subscribers the online library of technical articles contain several papers on metallurgical topics including comminution modelling mass balance calculations and laboratory comminution testwork program information
read more
-
Optimization of mill performance by using online ball and pulp measurements by b clermont and b de haas synopsis ball mills are usually the largest consumers of energy within a mineral concentrator comminution is responsible for 50 of the total mineral processing cost in todays global markets expanding mining groups are trying
read more
-
Sag milling extends itself to many applications due to the range of mill sizes available they can accomplish the same size reduction work as two or three stages of crushing and screening a rod mill and some or all of the work done by a ball mill sag mills are also an optimum solution for wet grinding since crushing and screening in these
read more
-
Agsag mills can accomplish the same size reduction work as two or three stages of crushing and screening a rod mill and some or all of the work of a ball mill because of the range of mill sizes available agsag milling can often be accomplished with fewer lines than in a conventional rod millball mill circuit
read more
-
Medium the difference between sag and ball mills is the frac ore milling circuit described in this brief has not been reported the mill features lifter bars and solid whiteiron well as power consumption and throughput objectives 2 and read more
read more
-
For overflow ball mills the charge should not exceed 45 of the mill volume for grate discharge mills the charge should occupy about 50 of the mill volume bond developed a relationship that can be used to determine the percent charge by volume as a function of the vertical height above the charge he and the radius of the mill r ie
read more
-
Ball mill find complete details about ball millball milling ppt ball millmini ball millsmall ball mill for sale from other mining machines supplier or manufacturershanghai canmax electronic mechanical equipment co ltd
read more
-
Ball mills ball mills have been the primary piece of machinery in traditional hard rock grinding circuits for 100 years they are proven workhorses with discharge mesh sizes from 40m to 200m use of a ball mill is the best choice when long term stationary milling is justified by an operation
read more
-
Receives combined ball mill a nd sub screen deck size sag mill discharge material via a 2018 warman centrifugal pump running with a 1700 kw variable speed motor and gearbox
read more
-
The expansion of mining and rom feed to the plant is particularly beneficial when the sagball mill circuit is the bottleneck constraining production expansion the increased head grades to ball mill and downstream circuit through waste rejection can lead to increased metallurgical recoveries in flotation or conventional millcip gold circuits
read more
-
Pdf on jan 1 2011 a mainza and others published rom ball mills a comparison with agsag milling find read and cite all the research you need on researchgate
read more
-
Single stage sag mills are very beneficial in reducing capex for plants with a staged throughput approach when future tonnage is to be increased the sag mill can feed downstream ball milling to boost capacity fullertraylor sagag mills range in size from 43m through 122m in diameter with powers as high as 28000 kw
read more
-
Aug 29 2018 the karara iron ore project is a magnetite operation consist of open pit mining and concentrator to produce highgrade magnetite concentrate the concentrator has adopted three stages of comminution ie fine crushing in the high pressure grinding rolls hpgr primary ball milling and fine grinding in the towermill plus magnetic separation in between these comminution devices
read more
-
Oct 01 2018 the traditional sab sag following by ball milling is one option always considered due to its capacity to process very high tonnages the relative simplicity of design high availability and the
read more
-
Gearless mill drive gmd technology has further expanded the use of large ag milling allowing metso to produce the worlds largest sag mill of 42 in diameter drawing power at 28 mw today metso is the world leading supplier of gearless ag mills operating globally
read more
-
A possible circuit change would send the crusher discharge to the ball mill circuit better balancing the work between the sag and ball mill when ball milllimited and with low ore variability a
read more
-
2009827 there are six parallel conventional milling circuits at palabora mining company each milling circuit consists of a rod mill followed by a ball mill in series crusher product 9 mm is fed to the rod mill and the water is fed in ratio to the ore feed mass
read more
-
Correction of bond ball mill work index test for closing mesh sizes it is commonly known that one must run the bond ball mill work index test such you pick a closing mesh to
read more
-
The sag mill trommel undersize is combined with the ball mills discharge and pumped to two parallel packs clusters of twelve 660 mm diameter cyclones the cyclone underflow from each line reports to a ball mill while the cyclone overflow is directed to the flotation circuit the designed ball milling circuit product is 80 passing 150 m
read more
-
Given that the sag mill often shows up as one of the last milling processes shutting down or running halfempty just because stockpiles got too low is expensive ore size also has an impact on the comminution circuit in terms of wear and tear on equipment
read more
-
Difference between sag and ball mill 20191014 6 jun 2016 ag mills or sag mills with low ball charges are often used in of the total power between the sag circuit and ballmill circuit often at an liners for the grinders 8 jun 2010 the difference between a mill designed to operate in overflow mode or for sag and ballmill liners although the
read more
-
Agsag mills can accomplish the same size reduction work as two or three stages of crushing and screening a rod mill and some or all of the work of a ball mill because of the range of mill sizes available agsag milling can often be accomplished with fewer lines than in a conventional rod millball mill circuit
read more