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Ball Mill Product Size, P80, microns Feed Size, F80, mm Transfer Size, T80, microns Ore SG Ball Mill Grindability, kWh/ton Average No ENERGY REQUIREMENTS CALCULATION: Pebble Crusher, Y/N From SAGDesign testwork results. Notes Ball Mill Reduction Ratio, RR Inefficiency for coarser feed to ball mill Inefficiency for finer final product size

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how to calculate p80 size distribution - mydressnaaicursus. how to calculate p80 ball mill how to calculate p80 value for particle size distribution Ore Process how to calculate p80 value for particle size distribution, Z score and Normal distribution LTCC Online The z-score and Area Often we .

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mills with the rod mill and ball mill laboratory work indices. Note, in Figure. 1, that the rod mill product slope is less than 0.5 due to an extra amount of nes present being ﬁ ﬁ ner than 650 μm. These ﬁ nes proceed to the ball mill improving the ball mill efﬁ ciency. Also, the plotted rod mill P80 value, as shown in Figure 1, is 2900 ...

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Ball mill. A typical type of fine grinder is the ball mill.A slightly inclined or horizontal rotating cylinder is partially filled with balls, usually stone or metal, which grind material to the necessary fineness by friction and impact with the tumbling balls. Ball mills normally operate with an approximate ball charge of 30%.

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Ball Mill Power Calculation Example A wet grinding ball mill in closed circuit is to be fed 100 TPH of a material with a work index of 15 and a size distribution of 80% passing ¼ inch (6350 microns).

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how to calculate the primary drive for a ball mill. Ball mill - Wikipedia ... Figure 2: Ball mill for determining Bond ball mill work index ... from a primary crusher product size, F80, to a ball mill cyclone overflow product size, P80. .... with pinion and gear drives are in the 10 MW range (these would.

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circuit P80 target size) material in the ball mill. It can be measured and then increased through pump and cyclone adjustments. By so transferring the application of ball mill power from fine (minus P80 product size) to coarse material, circuit efficiency is increased and overgrinding is decreased. The other factor that determines overall

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The basic parameters used in ball mill design (power calculations), rod mill or any tumbling mill sizing are; material to be ground, characteristics, Bond Work Index, bulk density, specific density, desired mill tonnage capacity DTPH, operating % solids or pulp density, feed size as F80 and maximum 'chunk size', product size as P80 and maximum and finally the type of circuit open/closed ...

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of the Bond ball mill grindability test. For all model based methods, a reliable method to calculate mill power draw for a given mill is required for the calculation of power draw. Morrell (1996) proposed a mathematical model for autogenous, semi-autogenous and ball mills which is based on the motion of grinding charge inside the mill.

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A) Total Apparent Volumetric Charge Filling – including balls and excess slurry on top of the ball charge, plus the interstitial voids in between the balls – expressed as a percentage of the net internal mill volume (inside liners). B) Overflow Discharge Mills operating at low ball fillings – slurry may accumulate on top of the ball charge; causing, the Total Charge Filling Level to ...

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how to calculate p80 ball mill - elohimfoundationorg. how to calculate p80 ball mill - Quarry Crusher Machine For, crushing and grinding; and F80 and P80 are the 80% passing size of the feed and product P80 normally reached by conventional ball mills, Ore product size P80 5) Contact Now sagdesign

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JKTech Laboratory Services Bond Ball Mill Index Test (BRMWI) A Bond Ball Mill Index Test (BBMWI) is a standard test for determining the Ball Mill Work Index of a sample of ore. The BBMWI is a measure of the resistance of the material to crushing and grinding. It can be used to determine

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how to select ball mill Calculate and Select Ball Mill Ball Size for ... Jaw crusher is for the primary crushing. Jaw ... small drive gear, discharging part,Ball mill is... how to calculate p80 ball millCalculate Ball Mill, how to calculate the maintenance cost in ball mill ...From large primary jaw crusher and impact crusher to cone crusher ...

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how to calculate p80 ball mill Ball Mill Design/Power Calculation Now we much select a Ball Mill that will draw this power. The ball mill motor power requirement calculated above as 1400 HP is the power that must be applied at the mill drive in order to grind the tonnage of feed from one size distribution.

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how to calculate p80 ball mill - elohimfoundationorg. how to calculate p80 ball mill - Quarry Crusher Machine For, crushing and grinding; and F80 and P80 are the 80% passing size of the feed and product P80 normally reached by conventional ball mills, Ore product size P80 5) Contact Now sagdesign

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Calculate and Select Ball Mill Ball Size for Optimum Grinding. In Grinding, selecting (calculate) the correct or optimum ball size that allows for the best and optimum/ideal or target grind size to be achieved by your ball mill is an important thing for a Mineral Processing Engineer AKA Metallurgist to do.

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ball mill can be re-organised as [7] and [8], where B'Wio and A'Wio are the corrected operating work indices and WAG/SAG, WBM are the respective power draw of AG/SAG and ball mills. Note that the ball mill operating work index is applied only on the portion that needs the additional grinding (Q2), which renders to the AG/SAG mill the

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how to calculate p80 size distribution; ... P80, as shown by the respective mill feed and discharge size distributions. ... work together to determine circuit classification system efficiency. ... how to calculate the maintenance cost in ball mill; how to make a hammer mill for crushing ore; how to order for brick making machines in south africa;

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Nov 11, 2015 ... Figure 2: Ball mill for determining Bond ball mill work index ... from a primary crusher product size, F80, to a ball mill cyclone overflow product size, P80. .... with pinion and gear drives are in the 10 MW range (these would. Get Price

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Nov 11, 2015 ... Figure 2: Ball mill for determining Bond ball mill work index ... from a primary crusher product size, F80, to a ball mill cyclone overflow product size, P80. .... with pinion and gear drives are in the 10 MW range (these would. Get Price

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Ball Mill Design/Power Calculation. The basic parameters used in ball mill design (power calculations), rod mill or any tumbling mill sizing are; material to be ground, characteristics, Bond Work Index, bulk density, specific density, desired mill tonnage capacity DTPH, operating % solids or pulp density, feed size as F80 and maximum 'chunk size', product size as P80 and maximum and finally ...

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mills with the rod mill and ball mill laboratory work indices. Note, in Figure. 1, that the rod mill product slope is less than 0.5 due to an extra amount of nes present being ﬁ ﬁ ner than 650 μm. These ﬁ nes proceed to the ball mill improving the ball mill efﬁ ciency. Also, the plotted rod mill P80 value, as shown in Figure 1, is 2900 ...

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Does making the ball mill close circuit, reduce its P80. (e.g letting the hydrocyclone produce an overflow of 130 um). this would mean, most of the pulp will go to the underflow. If we do this, what is the limit for the circulating load? The problem rooted from having the main ore (copper sulfide,

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