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Ball mills along with grinding mills impact crushers and a variety of other equipment are used for the reduction of all kinds of materials for all kinds of purposes. Size reduction is an important part of many industrial processes making ball mills and other pulverizing mechanisms vital to

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These are the biggest ball mills yet supplied for a platinum mining industry application in South Africa and are also among the biggest anywhere in the world. With each ball mill drum having a monumental total inertia of 14 195 400 kgm2 controlling the drums (i.e. stopping holding and positioning them) presented its own unique problems.

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These are the biggest ball mills yet supplied for a platinum mining industry application in South Africa and are also among the biggest anywhere in the world. With each ball mill drum having a monumental total inertia of 14 195 400 kgm2 controlling the drums (i.e. stopping holding and positioning them) presented its own unique problems.

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Working Principle Operation. The apparent difference in capacities between grinding mills (listed as being the same size) is due to the fact that there is no uniform method of designating the size of a mill for example a 5′ x 5′ Ball Mill has a working diameter of 5′ inside the liners and has 20 per cent more capacity than all other ball mills designated as 5′ x 5′ where the

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The effect of ball size distribution increased with increasing mill filling and for the mill filling of 35 the ball size distribution had the maximum effect on the power draw.

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The ball mill is operated at different time (10 15 and 20 min) ball loading (number of balls 4 7 and 10) and RPM of the ball mill (60 70 and 80 rpm). At each grinding time the product size distribution was determined by sieve analysis.

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Could suppliers from all over the globe can quote us their best FOB and CIF offers for dry ball mill. The specs are as Model 1200 2400 1200 3000 Speed of Bucket ( r/min ) 36 32 Weight of Balls ( t ) 3.5 5 Size of Feed opening ( mm ) = 25 = 25 Size of outputting feed ( mm ) 0.0750.6 0.0750.4 Production ( t/h ) 1.54.8 1.65 Power ( kw ) 30 45 Weight ( t ) 11.5

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Could suppliers from all over the globe can quote us their best FOB and CIF offers for dry ball mill. The specs are as Model 1200 2400 1200 3000 Speed of Bucket ( r/min ) 36 32 Weight of Balls ( t ) 3.5 5 Size of Feed opening ( mm ) = 25 = 25 Size of outputting feed ( mm ) 0.0750.6 0.0750.4 Production ( t/h ) 1.54.8 1.65 Power ( kw ) 30 45 Weight ( t ) 11.5

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Industrial ball mills can be as large as 8.5 m (28 ft) in diameter with a 22 MW motor drawing approximately 0.0011 of the total world s power (see List of countries by electricity consumption). However small versions of ball mills can be found in laboratories where they are used for grinding sample material for quality assurance.

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A ball mill is a type of grinder used to grind blend and sometimes for mixing of materials for use in mineral dressing processes paints pyrotechnics ceramics and selective laser sintering works on the principle of impact and attrition size reduction is done by impact as the balls drop from near the top of the shell. A ball mill consists of a hollow cylindrical shell rotati

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Ball mills along with grinding mills impact crushers and a variety of other equipment are used for the reduction of all kinds of materials for all kinds of purposes. Size reduction is an important part of many industrial processes making ball mills and other pulverizing mechanisms vital to

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2 MODELLING THE SPECIFIC GRINDING ENERGY AND BALL-MILL SCALEUP Ball-mill scale up (Bond s Law)Data zBond work index w i zFeed D f and product d size (both 80 cumulative passing) Result The specific grinding energy w Mill power draw P = wT where T the mill capacity Mill dimensions (from Tables or charts)

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The effect of ball size distribution increased with increasing mill filling and for the mill filling of 35 the ball size distribution had the maximum effect on the power draw.

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2 MODELLING THE SPECIFIC GRINDING ENERGY AND BALL-MILL SCALEUP Ball-mill scale up (Bond s Law)Data zBond work index w i zFeed D f and product d size (both 80 cumulative passing) Result The specific grinding energy w Mill power draw P = wT where T the mill capacity Mill dimensions (from Tables or charts)

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While also based on the population balance model the model allows describing explicitly a number of variables such as ball size mill hold-up diameter and liner confi guration with no fi tting

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