ball mill and sag circuit mining Difference Between Sag Mill vs Ball Mill mech4study Today we will learn about difference between sag mill vs ball mill A mill is a machine by which solid or hard materials are broken into smaller pieces by means of grinding crushing or cutting This commutation is an essential part of many processes
Great energy conservation, wide adjustment range, low noise and little dust
1.5 times or even 2 times larger crushing cavity than that of other crushers, large feeding mouth
With features of reliable structure, high working efficiency and easy adjustment
VSI sand maker, also called VSI crusher, is the major machine for sand making plant.
Ball mill is the key machine to grind the crushed materials. Ball mill machine is widely used to process cement, silicate product, building material, refractory material, fertilizer, ceramics and glass, etc.
On the basis of domestic mills, fote raymond mill is produced. The raymond roller mill enjoys the features of high working efficiency, low energy consumption, small floor space and small cost.
Mill circuit pump manual weir minerals centrifugal slurry crushed ore is fed into a sagball mill circuit with a median size of approximately 12000 microns most sag mills are operated in closed circuit with a screen
Optimizing your sag mill operation international mining in multistage abcsabc circuits the ag or sag mills are in closed circuit with screens and pebble crushers the mill discharge from these mills consists of slurry which goes to the ball mills for further grinding and coarse pebblesrocks which are crushed and sent back to the millget
Grinding circuit 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
Difference between sag mill vs ball mill mech4study oct 12 2017183 sag mill make use of steel balls included with some large and hard rocks for grinding these mills utilize the balls in making the large fragments of materials broken into pieces the ball charge of a sag mill is about 9 to 20this process takes place inside the large
Comparison of hpgr ball mill and hpgr stirred mill circuits to the existing agsag mill ball mill circuits by chengtie wang beng university of science and technology beijing 2009 a thesis submitted in partial fulfillment of the requirements for the degree of master of
Ball mill grinding process youtube click to view107 apr 10 2016 183 ball mill animation demo grinding machine how does a ball mill work duration 200 henan bailing 10616 sag amp ball mill grinding circuit duration 043 911 metallurgy corp 2350 author avinubalan samvinub learn more
Where such circuits include combinations of any of the following equipment ag and sag mills ball mills rod mills crushers high pressure grinding rolls hpgr powerbased equations general the approach divides comminution equipment into three categories tumbling mills eg ag sag rod and ball mills
This research focused on the energy and cost comparisons of the existing agsag ball mill circuits with two proposed comminution circuits including an hpgr ball mill circuit and a novel hpgr stirred mill circuit the main objective of this research was to advance the understanding of the potential benefits of the proposed hpgr stirred mill
Ball mill and sag circuit mining diagram schematic diagram of ball millball mill working schematic diagram ball mill for sale indiadiagram of ball mill mining equipment mine process plant they are sometimes called ball mills in shopfloor slang despite the fact that that schematic diagram of a ball mill grinding circuitview within article
Doi 101428810073557 corpus id 138251706 comparison of hpgr ball mill and hpgr stirred mill circuits to the existing agsag mill ball mill circuits inproceedingswang2013comparisonoh titlecomparison of hpgr ball mill and hpgr stirred mill circuits to the existing agsag mill ball mill circuits authorchengtie wang year2013
Axb values less than 30 a single sabc line was selected for the grinding circuit with the sag mill motor rated at 134 mw and two ball mills each powered by a 7 mw motor the plant rampup period started in 2006 and in 2009 the design throughput was yet to be achieved the reported contributing factors were reported as
Sag mill ball sizing grinding amp classification circuits optimum ball charge in a sag mill is a function of many factors some are discussed below for a sab or sabc circuit in general the higher the ball charge the higher the throughput and fine feed helps as well of course you need a bigger ball mill
Single stage crushsingle stage sag mills and two stage crushball mill circuits are typically selected for low throughput plants lt50 th where personnel costs are a large component of costs sab circuits are typically selected for plants of 05 to 2 mta
Circuit a sag mill followed by two ball m ill lines the run of mine rom ore s ent o the sag mill plant is transported from the open pit by truc ks and dumped to a griz zly
Sag mills sag mills are normally operated with ball loads ranges from 5 18 volumetric filling while rom ball mills are operated with ball loads ranging between 25 and 40 volumetric filling
Following the upgrades in the sag mill circuit sampling and modeling of the ball mill circuit identified a bimodal hardness characteristic of the ore valuation with both metcom and jk simmet174e lead to changes in the ball make up size from 75 mm to a 5050 mix of 75 mm and 38 mm
Sag mill hpgr and ball mill in an abc closed circuit instead of recycling the larger size fraction the oversize product from agsag mills is sometimes prevented from discharging from the mill by using a reverse spiral at the discharge end and washes back into the mill for further grinding 4
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
Balllimited circuits where the t 80 hits the lower limit will result in the charge level in the sag mill dropping until its power draw matches the throughput limit dictated by the ball mill it is important to realize that once the sag mill charge level drops to be equal to the ball charge the model will be operating quotout of rangequot and the
The presence of grinding ball fragments in the milling circuit can impact two critical areas in minerals processing one is the crushing circuit where companies have observed damage to crushers unscheduled downtime and loss of production the trunnion magnet is mounted at the sag ball mill discharge point and is used in place of a trommel
Each milling circuit is unique and as such the goals and most optimal control strategy might differ for individual cases process iq is an expert in implementing control systems for sag and ball milling circuits making use of advanced stabilisation and optimisation strategies developed by mintek
A typical saghpgrball mill circuit suggested by patzelt et al 6 is shown in figure 96 where the pebbles from the sag mill are crushed in the highpressure grinding rolls it is a general observation that sag mills are helpful for grinding where wide variations in the grindability of
Aug 19 2019nbsp018332within comminution circuits high pressure grinding rolls hpgr are increasingly replacing conventional sag rod and ball mills for hard rock reduction owing to their substantially lower energy consumption and potential for significant total cost of ownership reduction not only do they require as much as 40 less energy than traditional reduction methods but their wearable
Amit 135 lesson 6 grinding circuit mining mill operator 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
Orway mineral consultants canada ltd mississauga on modern grinding circuits include a sag mill a ball mill andor a combination thereof the use of bond work indices coupled with other breakage tests and the application of empirical efficiency factors has become a standard for determining ore compe specific energy in modern grinding tency to calculate circuits
Comparison of hpgrball mill and hpgrstirred mill circuits to the existing agsag millball mill circuits abstract in the past 20 years the energyefficient comminution technologies including high pressure grinding rolls hpgr and high speed stirred mill have been developed and adopted in the hardrock mining operation in order to reduce
Gold fields granny smith grinding circuit a metallurgist figure 2 singlestage sag mill grinding circuit flowsheet the circuit feedrate of 125 tph to 150 tph was primary crushed to an f80 size of between 105 mm and 120 mm and the sag mill slowed down and charged with a 7 by volume vv load of 125 mm balls
Jan 01 2005nbsp0183326 ballmill circuit operation very often in sag circuits the ballmill circuit is neglected in many operations where economics dictate that throughput is worth more economically than the required sacrifice in grind the focus shifts to throughput so much that the available ballmill power is not used to the fullest extent
The circuit consists of a 34 x 20 egl sag mill a raptor 900 pebble crusher and two 24 x 396 ball mills each mill is equipped with a 2 x 8500hp dual pinion drive system the plant was designed to process 1585 h mtpof sag feed from startup the mill struggled to meet the required production rates
Sag mill grinding circuit design the mill product can either be finished size ready for processing or an intermediate size ready for final grinding in a rod mill ball mill or pebble mill 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