### Let the ball mill P80=150 um (constant), how can we reduce ...

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,

### how to calculate p80 ball mill

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.

### Mill (grinding) - Wikipedia

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%.

### JKTech Laboratory Services - JKTech | JKTech

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

### how to calculate the primary drive for a ball mill

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.

### how to calculate p ball mill - vanmourik-tiel

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

### how to calculate p80 ball mill - populareducation

how to calculate p80 ball mill - Mining Machiner. Ball mill - Wikipedia, the free encyclopedia. A ball mill is a type of grinder used to grind and blend materials for use in mineral dressing processes, paints,... Read More. cement grinding optimisation - zenith.

### Ball Mill Cyclone overflow P80. - Grinding ...

I would like to know the effect of ball mill cyclone overflow density on P80 of 150um. I ask this because at either higher or lower densities, you can get your P80 @ 150um (at least 80% passing 150um). Kindly advise on what densities would you get the P80 best for floating c

### calculates the grinding charge of a ball mill | Mining ...

– Monochamber mill power: it calculates the theoretical absorbed power of the . This calculator is a good start to evaluate the grinding ball charge after mill .

### how to calculate the primary drive for a ball mill

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 ...

### how to calculate the ball mill discharge size distribution

Axial transport in dry ball mills - ScienceDect 4 May 2006 ... Ball mills are used for grinding of rocks, cement clinker and line from ... axial distribution of different particle sizes within a discharging ball mill. ... diffusion equation with the diffusion coefficient decreasing with grate size. Get Price. NEUROCONTROL OF A BALL MILL ...

### how to calculate p80 ball mill

How Calculate The Vare In Ball Mill Media . How calculate the vare in ball mill mediahow calculate the vare in ball mill media,How calculate the vare in ball mill media Products As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including, How calculate .ball mill .

### how to calculate p80 size distribution

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;

### how to ball mill feed capacity calculate for example

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 ...

### how to calculate grinding media in a ball mill in cement ...

Correlations for the grindability of the ball mill as a measure of its ... Mar 1, 2014 ... ABSTRACT A ball mill is the vital component in industries viz. mineral ... number of balls, time of grinding, particle density, and speed of the ball mill (rpm). .... Based on this equation it is possible to calculate, for example, the specific energy .....

### Calculate horse power of a ball mill - Henan Mining ...

A Method of C alculating Autogenous Semi. mills with the rod mill and ball mill laboratory work indices Note in Figure 1 that the rod mill product slope is less than 05 due to an extra amount of nes present being ner than 650 m These nes proceed to the ball mill improving the ball mill efciency Also the plotted rod mill P80 value as shown in Figure 1 is 2900

### How to Size a Ball Mill -Design Calculator & Formula

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 ...

### Ball mill media optimization - Metcom Tech

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

### how to calculate ball mill - leidenconcerten

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.

### Ball Mill Design/Power Calculation - LinkedIn

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).

### how to calculate residence time in a ball mill

calculate residence time through ball mill. Calculate and Select Ball Mill Ball Size for Optimum, 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 ...

### A Method of C alculating Autogenous/ Semi-Autogenous ...

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 ...

### ball mill calculator - puntoalloggio

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

### how to calculate p80 value for particle size distribution ...

Nov 17, 2012· Particle-size distribution – Wikipedia, the free encyclopedia. The particle-size distribution (PSD) of a powder, or granular material, or particles dispersed in fluid, is a list of values or a mathematical function that defines . »More detailed

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