supported grinding mills up to the largest sizes SAGball mill circuit incorporating pebble crushers and a POLYCOM highpressure grinding roll SAG and ball mill for gold ore grinding One of three SAG mills with 975 m diameter and 2 x 4000 kW drive power These mills operate in conjunction with ball mills for iron ore grinding in Iran More Detail

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Get PriceMill models The basic mass balance ball mills Several recent papers by It is assumed that this type of mill (5-9) Austln and co-workers have approximates to a fully mixed reactor where investigated certain aspects of this the grate acts like a size classifier to problem prevent large material leaving the mill

Get PriceCement Ball Mill Structure When Ball Mill is working, raw material enters the mill cylinder through the hollow shaft of the feed The inside of the cylinder is filled with grinding media of various diameters (steel balls, steel segments, etc); when the cylinder rotates around the horizontal axis at a certain speed, Under the action of centrifugal force and friction force, the ,

Get PriceGrate discharge Dry Grate discharge Wet Overflow discharge Wet Figure 85 Effect of mill filling on power draft for ball mills The data is taken from Rexnord Process Machinery Reference Manual, Rexnord Process Machinery Division, Milwaukee, 1976 The effect of varying mill speed on the power drawn by the mill is shown graphically in Figure 84

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Get Pricelengths of 11887 mm [39 feet] Each Ball mill is also driven by two 8,500 horsepower ABB motors Figure 3 - The 24’ x 395’ ball mill Table 4, 5 and 6 include the technical data for the Copper Mountain ball mills Table 4 - general ball mill data Specification Data Mill size 7315 M [24 feet] diameter by 12039 M [395 feet] long Mill type .

Get PriceA General Model for Semi-autogenous and Autogenous Milling an 8 m diameter SAG mill with LID = 05 grinding a copper ore, and predicted maximum capacity and minimum kWh/ton at about 6070 ball load at 25070 total filling Two FAG , FIGURE 1 Illustration of grate classification treatment as an exit classifier , defined as the mean value of K for particle sizes x i +

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Get PriceGrate Discharge Ball Mill For Iron Ore High Speed Grate Discharge Ball Mill For Iron Ore High Speed Approxs 1lakh unit get latest price star trace power saving ball mill for grinding various ores and other materials are widely used in mineral processing building materials and chemical industry can be divided into dry and wet grinding methodsccording to different ways of ,

Get PriceContinuous Feed Grinding Mills: Ball, Pebble & Rod 3 ft (9 M) – 75 ft (228 M) diameter Overflow & Grate Discharge Wet & Dry Grinding SERVICES Flow Sheet Development Project Commissioning & Design Installation Supervision & Training Rebuilds & ,

Get Pricefor x x m where c i is the probability (0 to 1) for a particle of size x passing through the mill discharge grate Particles larger than the grate size, x g, have a zero probability of passing through the discharge grate The solids that have water-like behaviour solids (solids of size < x m) will always pass through the grate on being presented

Get PriceGrate ball mill Type G Grate Ball Mill is a cylindrical mill equipped with grate and lifter at the discharge end, designed to be most efficient for coarse grinding in an open or closed circuit with a SAND CLASSIFIER Type G Ball Mill can handle 25mm feed To grind such a large feed efficiently, it comes equipped with thick shell lining and .

Get PriceJun 06, 2016· Many large mills around the world (Esperanza with a 128 m mill Cadia and Collahuasi with 122-m mills, and Antamina Escondida # IV PT Freeport Indonesia, and others with 116-m mills) have installed SAG mills of 20 MW Gearless drives (wrap-around motors) are typically used for large mills, with mills of 25 MW or larger having been designed

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Get PriceMill Type Overview Three types of mill design are common The Overflow Discharge mill is best suited for fine grinding to 75 – 106 microns; The Diaphram or Grate Discharge mill keeps coarse particles within the mill for additional grinding and typically used for grinds to 150 – 250 microns; The Center-Periphery Discharge mill has feed reporting from both ends and the product ,

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Get PriceSep 01, 1991· The standard line of mills includes autogenous ( AG ) and semiautogenous ( SAG ) mills, beginning with a 6 ft x 2 ft ( 183 m x 061 m ) 25 hp ( 187 kW ) laboratory mill and is followed by 12 ft to 36 ft ( 37 m to 11 m ) diameter mills ranging in power from 150 to 20,000 hp ( 112 to 14,900 kW )

Get PriceThe grate-discharge type of Ball Mill has a grate at the outlet of the shell and causes less excessive grinding, compared to the overflow type Therefore, generally, it is best suited to grind materials up to the particle sizes ranging from 60 to 100 mesh

Get PriceAMIT 135 Lesson 7 Ball Mills amp Circuits – Mining Mill Mill Type Overview Three types of mill design are common The Overflow Discharge mill is best suited for fine grinding to 75 – 106 microns The Diaphram or Grate Discharge mill keeps coarse particles within the mill for additional grinding and typically used for grinds to 150 – 250 microns The CenterPeriphery ,

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Get PriceGrate Ball Mill,Grate Ball Mills,Grate Ball Mill Manufacturer , Grate Ball Mill could isolate rough material from fine in primary stage efficiently It is an important process to control the granularity Discharge grate consist of ,

Get PriceGrate Ball Mill Gold Ore Milling Machine Working Principle The transmission device drives cylinder to rotate Materials and water are fed from the feeding end of cylinder and materials are grinded by impact and grinding of steel balls and ores into fine particl

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