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For a single mine average comminution energy consumption can be approximately 6 700 kWh /kiloton Grinding is accomplished by abrasion and impact of the ore with moving media such as rods (rod mills) balls (ball mills) or pebbles (sized ore in AG & SAG mills) These vary in size according the size of particle being processed

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Mar 20 2017· Grinding within a mill is influenced by the size quantity the type of motion and the spaces between the individual pieces of the medium in the mill Grinding is a more random process and is subjected to the laws of probability The degree of grinding of an ore particle depends on the probability of the ore entering a zone between the medium

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A SAG mill with a 44' (134m) diameter and a power of 35 MW (47 000 HP) has been designed Attrition between grinding balls and ore particles causes grinding of finer particl SAG mills are characterized by their large diameter and short length as compared to ball mills

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ore grinding mill power consumption Model Predictive Control for SAG Milling in Minerals Processing ore grinding mill power consumption mineral processing operation and can be 80% of total electrical energy consumed at a specific power consumption of The mill operates as a wet circuit ore suspended in water as opposed to the air swept grinding used in some

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For a single mine average comminution energy consumption can be approximately 6 700 kWh /kiloton Grinding is accomplished by abrasion and impact of the ore with moving media such as rods (rod mills) balls (ball mills) or pebbles (sized ore in AG & SAG mills) These vary in size according the size of particle being processed

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PDF | The last 90 years have generated a considerable volume of technical literature on the subject of grinding mill power and its prediction It is therefore surprising that in all this time

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High pressure roller press as pre grinding to ball mill Specific power consumption decreases by about 10% Reductions in specific energy consumption in the range of 7 24 kWh/t cement are reported (LBNL 2008) Power consumption per ton of cement can be reduced by 8 ~ 12 kWh representing 15% to 30% saving over a traditional ball mill system

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Oct 01 2012· Iron process working principle of grinding media for iron ore grinding by ball mill Calculation of power consumption for ball mills and grinding media charges

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In a typical grinding mill application the grinding media eventually fractures and wears into a fine metallic powder because of the heavy recirculating load in the mill Fragments of grinding media eventually accumulate in the ore being processed and can cause serious damage to other equipment in the grinding circuit such as pumps and

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If the grinding particle size is large the more work the mill needs to do to the ore the more the workload of the ball mill is bound to increase and the energy consumption and power consumption will also be increased in order to reach the prescribed grinding fineness

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ore grinding mill power consumption Model Predictive Control for SAG Milling in Minerals Processing ore grinding mill power consumption mineral processing operation and can be 80% of total electrical energy consumed at a specific power consumption of The mill operates as a wet circuit ore suspended in water as opposed to the air swept grinding used in some

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2 Crushing and less grinding and reducing the granularity of the grinding If the grinding particle size is large the more work the mill needs to do to the ore the more the workload of the ball mill is bound to increase and the energy consumption and power consumption will also be increased in order to reach the prescribed grinding fineness

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Mar 20 2017· Grinding within a mill is influenced by the size quantity the type of motion and the spaces between the individual pieces of the medium in the mill Grinding is a more random process and is subjected to the laws of probability The degree of grinding of an ore particle depends on the probability of the ore entering a zone between the medium

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