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sag and ball mill controls in bolivia

Where I work now Minera San Cristobal in Bolivia we use sound control on both the SAG and Ball Mills The result of this control is a 25 increase in throughput over the plant design with a 10 reduction in energy consumption the mill is more efficient The mill control manipulates the feed rate and mill speed depending on ore and liner conditions Liner wear has improved and ball consumption

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  • CURRENT TRENDS IN SAG AND AG MILL OPERABILITY AND CONTROL

    With the improved control of SAG mill weight the Manta Cube was able to increase the overall feed rate to the SAG mill as shown in the feed rate histogram of Figure 14

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  • Electronic ear in SAG mill Automation Control

    Aug 25 2004 We have an application in a SAG Mill where we have installed an electronic ear in order to listen the noise produced by the balls falling to the bottom of the mill Our idea is to convert the amplitude and frequency of noise to a 420mA signal or something else in order to determine if the ball is crushing the mineral or the mill lining

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  • Products Manta Controls

    Dec 02 2019 The Manta Cube system can be used to control various processing units and has been successfully used for SAG Mill Control Ball Mill Control Flotation Control Thickener Control CCD Control and more

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  • ball mill steel bolivia

    The San Cristobal mine located in southwestern Bolivia is one of the worlds largest ore from the stockpile for grinding in a semiautogenous SAG and ball mill circuit Fracking Puts Some Cracks in the Steel Industry

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  • San Bartolom Silver Mine Potosi Mining Technology

    The Bolivian national mining company Corporacin Minera de Bolivia is the underlying owner of all the mining rights relating to the project Coeur began introducing ore to the mill in April 2008 and when full plant capacity is reached forecast for August 2008 San Bartolom will be the worlds largest pure silver mine producing

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  • SAGBall Mill Optimization KnowledgeScape

    GrindingExpert automatically adjust feed rate mill speed and water addition to reduce upsets eliminate grindouts and increase tonnage in SAG ball mills We constantly maintain desired operating conditions by monitoring bearing pressure power recycle pebbles mill density and mill acoustics

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  • Grinding in Ball Mills Modeling and Process Control

    Keywords Ball mills grinding circuit process control I Introduction Grinding in ball mills is an important technological process applied to reduce the size of particles which may have different nature and a wide diversity of physical mechanical and chemical characteristics Typical examples are the various ores minerals limestone etc

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  • sag mill chute design

    sag mill pinions jbcustomguitars Mill Pinion Gears Our high torque high precision integral and nonintegral mill pinions are used in SAG horizontal ball mill and rotary kiln applications across the globe Supplied as an individual component or as a fully optimised system comprising a girth gear mill drive gearbox pinion and barring drive our pinions are manufactured

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  • SAG Mill Control It Shouldnt be that Hard

    SAG mill control fundamentally means managing the load in the mill by adjusting the feed rate of ore to the mill andor manipulating the rotational speed of the mill The best way to measure load is to mount the mill on load cells

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  • Top ten lists for metallurgical and mineral processing

    FreeportMcMoRans Cerro Verde operation Peru recently expanded to 360 ktd 397 000 stpd processing capacity using HPGR and ball milling technology There are significant energy and wear savings compared with conventional SAG milling This has enormous implications for our industry SAG mill performance predictor tests and methodologies

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  • How to Control a SAG Grinding Mill Circuit

    Autogenous and semiautogenous grinding have experienced renewed interest as efforts to reduce operating and capital costs have increased As a result the mill operator is faced with new equipment perhaps ten times as large as was common in the sixties and new circuit designs with different operating characteristics No longer can he grab a handful of mill discharge to estimate the size

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  • Grinding Circuit an overview ScienceDirect Topics

    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 ores are experienced

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  • Autogenous and SemiAutogenous Mills FLSmidth

    SAG and AG Mills operate by lifting oregrinding media and dropping it on the operating bed of the mill charge High impacts from lifting ore and media promote impact breakage which is the primary mechanism for size reduction in the mill Via the use of sophisticated instruments and software we closely monitor the mill impact location to boost the grinding efficiency of your operation

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  • Gearless mill drives Grinding ABB

    ABBs GMD is the most powerful mill drive system in the market to power semiautogenous SAG ball and autogenous AG mills This workhorse for grinding operations combines a robust servicefriendly and fit for purpose design to provide highest throughput reliability

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  • A Neural Network Model for SAG Mill Control

    MODEL WITHIN THE EXPERT SYSTEM FOR SAG MILL CONTROL line at Ok Tedi consists of two SAG mills each feeding a pair of ball mills The SAG mills are 96 m diameter by 43 m long and each have about 6800 kW installed A Neural Network Model for SAG Mill Control

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  • Sag And Ball Mill Controls KNOCK Mining machine

    Sag Ball Controls Sag and mill controls sag mills are autogenous mills but 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 the largest sag mill is 42 in diameter powered by a 28 mw 38000 hp motor chat online what is a sag mill in iron ore benification plant

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  • SAG AG Horizontal Ball and Rod Mill Gearboxes David

    SAG AG Horizontal Ball and Rod Mill Gearboxes Santasalo single and twostage helical and planetary drives are optimised to suit the demanding nature of grinding mill applications and can even be supplied as a full system comprising a mill drive girth gear pinions and barring drive Features

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  • Whats the Difference Between SAG Mill and Ball Mill

    Both the autogenous grinding mill and the ball mill feed parts are welded with groove and embedded inner wearresistant lining plate As the sag mill does not contain grinding medium the abrasion and impact on the equipment are relatively small The feed of the ball mill contains grinding balls

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  • Flexible milling and grinding solutions that last FLSmidth

    For the mining industry our semiautogenous SAG grinding mill uses a minimal ball charge in the range of 615 percent It is primarily used in the gold copper and platinum industries as well as in the lead zinc silver and nickel industries Autogenous AG grinding mills involve no grinding media as the ore itself acts as the grinding media

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  • Control SAG Mill sound detection Grinding

    Where I work now Minera San Cristobal in Bolivia we use sound control on both the SAG and Ball Mills The result of this control is a 25 increase in throughput over the plant design with a 10 reduction in energy consumption the mill is more efficient The mill control manipulates the feed rate and mill speed depending on ore and liner conditions Liner wear has improved and ball consumption

    Get Price
  • Mill Charge an overview ScienceDirect Topics

    In Mineral Processing Design and Operations Second Edition 2016 831 Rod Mill Charge Rod mill charges usually occupy about 45 of the internal volume of the mill A closely packed charge of single sized rods will have a porosity of 93 With a mixed charge of small and large diameter rods the porosity of a static load could be reduced even further

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  • CURRENT TRENDS IN SAG AND AG MILL OPERABILITY AND

    With the improved control of SAG mill weight the Manta Cube was able to increase the overall feed rate to the SAG mill as shown in the feed rate histogram of Figure 14

    Get Price
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