Ball/Rod mill Literature The Ball/Rod mills are meant for producing fine particle size reduction through attrition and compressive forces at the grain size level They are the most effective laboratory mills for batch wise rapid grinding of medium hard to very hard samples down to finest particle sizes
Get Price2021 10 24 A hypothetical ore is crushed to a size of 15 000 microns ground wet in a rod mill to 1000 microns and then ground wet in a ball mill to the various micron sizes of 300 250 200 and 100 In this example the product size represents the size in microns which 80 of the product passes
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Get Price2014 10 9 GTEK Laboratory Roller Rod Mill is a small sized light and multi usage new pattern grinding equipment It is designed for fine grinding of materials for ore beneficiation investigation in laboratories of metallurgical geological chemical construction materials and coal industry as well as in research institutes and mineral processing plant
Get PriceC for coarse rocks 75 50 mm a rod mill work index Wi RM for intermediate sized particles 25 3 mm and a ball mill work index Wi BM for small particles <3 mm Ammtec 2000 Laboratory testwork is required to determine these Work Indices and each test requires carefully collected samples of rock that is representative of future mill
Get Price2014 10 9 GTEK Laboratory Roller Rod Mill is a small sized light and multi usage new pattern grinding equipment It is designed for fine grinding of materials for ore beneficiation investigation in laboratories of metallurgical geological chemical construction materials and coal industry as well as in research institutes and mineral processing plant
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Get Pricemill As such primary ball mills should be designed with the rod mill work index and single stage ball mills should be with both the rod mill and ball mill indices This is because it is common to observe a difference sometimes significant between the rod mill and ball mill index values for a given ore type McKen Verret Williams 2006 On
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Get Price2014 10 1 for rod milling Rowland 1982 excluding EF3 K b is the composite of EF factors for ball milling Rowland 1982 excluding EF3 SPI The SAG Power Index SPI test Starkey Dobby 1996 uses a benchscale SAG mill test todetermine the specific energy of an industrial SAG mill The test is operated in closed circuit and the time
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Get Price2017 5 21 Grinding and Flotation Fine ore at minus 19mm ¾ sizing is fed at a controlled rate into the open circuit 2600mm x 3960mm 8 6 x 13 0 Hardinge rod mill at an average feed rate of 2 106 STPD or 87 75 STRH Rod mill discharge at a nominal size of minus 16 mesh and a pulp density of 75 percent solids combines with ball mill discharge
Get PriceThe Bond Ball Mill Work Index BBWi test is carried out in a standardised ball mill with a pre defined media and ore charge The Work Index calculated from the testing can be used in the design and analysis of ball mill circuits The test requires a minimum of 10kg of sample that has been stage crushed to 100 passing size of <3 35 mm
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Get Price2020 4 4 Description Size 2100x3600mm Capacity 15TPH Power 210 kW Tags Ball Mills Comminution Circuits Design Manufacture Install FAG Mills Grinding Circuits Lab Mills New equipment Process Plants Refurbished Rod Mills SAG Mills Steel Balls Steel Rods Tube Mills Turnkey Milling Plant Design Turnkey Projects Used
Get Price2014 2 21 Figure 2 Rod Mill Ball Mills Description Ball mills are similar in concept to the rod mill but are charged with steel balls in place of the rods The mill consists of a cylindrical drum sometimes tapered at one end and usually has a charge of steel balls up to 40
Get Price2014 10 1 for rod milling Rowland 1982 excluding EF3 K b is the composite of EF factors for ball milling Rowland 1982 excluding EF3 SPI The SAG Power Index SPI test Starkey Dobby 1996 uses a benchscale SAG mill test todetermine the specific energy of an industrial SAG mill The test is operated in closed circuit and the time
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Get Price2009 7 30 8 3 Centrifugal force outward Fc mp 2 Dm 2 8 1 is the angular velocity mp is the mass of any particle media or charge in the mill and Dm is the diameter of the mill inside the liners Gravitational force Fg mpg 8 2 The particle will remain against the wall if
Get Price2020 4 2 SAGMILLING Articles Mining projects are applying the age old notion of check your work against comminution circuit design mill power requirement estimates and mill throughput estimates The best way to test the results of one comminution modelling system is to replicate the calculation in a different modelling system
Get Price2018 2 20 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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Get PricePARTICLE TECHNOLOGY LAB REPORT 33 Procedure of Ball Mill Measure the inside diameter of the ball mill Measure the size of the ball with the help of venire calipers Fill the ball mill to about half of its volume with balls of the same diameter Feed t ball mill with 250 g mass of sugar of homogenous size obtained by screening and note the
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Get PriceBall/Rod mill Literature The Ball/Rod mills are meant for producing fine particle size reduction through attrition and compressive forces at the grain size level They are the most effective laboratory mills for batch wise rapid grinding of medium hard to very hard samples down to finest particle sizes
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