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Recommendation of ball mill and rod mill ball mill and rod mill are suitable for different materials 1 selection by materials hardness ball mill has a strong adaptation of material and it is suitable for grinding hard materials such as slag iron ore copper ore etc rod mill is suitable for grinding brittle material such as rare metals
Ball mill and rod mill are the common grinding equipment widely used in the mineral processing plant they are similar in shape and grinding principle but also different in structure performance and application here are seven differences between ball mill and rod mill to tell you how to choose the ball mill and rod mill
Since for the ball mill design we are using 80 passing the required value of c2 for the ball mill will be equal to120 c3 is the correction factor for mill diameter and is given as
Designing a ball mill crusher dols marmer amp graniet design of the kubaka grindng circuit using spi starkey associates addition it is also clear that the decision to use a crusher can now be made at the design stage of a project based on measured both plants were designed using spi sag power index and bond ball mill work how to design rod and ball mills in an accurate economical manner the
Rod mill design calculations 911metallurgist 2020729 ef1 dry grinding for the same range of work dry grinding requires 13 times as much power as w
Volumetric loading is similar to that of a ball mill 3035 design standards for drive components are more demanding than ball mills dry applications feature a peripheral discharge or an airswept arrangement typical operating speeds are slower than either sag or ball mills 6570 tcs wet and 6263 tcs dry
The geometry of a mill with conical ends is shown in figure 86 the total volume inside the mill is given by vm 4 d2 ml 1 2lc l l 1 dtdm 3 1 dtdm 816 the density of the charge must account for all of the material in the mill including the media which may be steel balls in a ball mill
The overall design of ball mills and rod mills are compact with simple operation and easy maintenance but the both are different in performance and applications in this article the similarities and differences between ball mills and rod mills are analyzed from 9 aspects and suggest how to choose ball mill or rod mill
Ball mill and rodmill designing designing of rod mill ball mill critical speed a ball mill critical speed actually ball rod ag or sag is the speed at which the centrifugal forces equal gravitational forces at the mill shells inside surface and no balls will fall from its position onto the shell get price
This project is to design and fabricate the mini ball mill that can grind the solid state of various type of materials into nanopowder the cylindrical jar is used as a mill that would rotate the
The bond index conforming rod charge consists of 6 rods of 125 diameter and 21 length 2 rods of 175 diameter and 21 length the grinding jar for the bond index rod mill is 12 x 24 in size and has a waveshaped design at least 15 to 20 kg sample material is required to simulate a closed grinding circuit in a ball or rod mill
The rod mill adopts overflow type and open type discharge does not use grate type discharge the diameter of the rod mill discharge end is larger than that of the same size ball mill when the rod mill speed is lower than the working speed of the same size ball mill the medium in the rod mill is in a sloping working state
Feed size should generally be 18 for ball mill and 12 for rod mill they are of a sturdy rugged design to handle frequent use with hard materials the batch ball and rod mills require a drive roll to rotate the mills the batch ball mill should be run between 56 rpm and 70 rpm the batch rod mill should be run between 47 rpm and 79 rpm
Oleg d neikov in handbook of nonferrous metal powders 2009 tumbling ball mills tumbling ball mills or ball mills are most widely used in both wet and dry systems in batch and continuous operations and on a small and large scale grinding elements in ball mills travel at different velocities therefore collision force direction and kinetic energy between two or more elements vary
All 8 ball and rod mills 8 continuous ball mill laarmann group bv lab wizz 320 micro ball mill lm pbm1 planetary ball mill lmpm01 planetary mill one station laarmann group bv lmbm 150l ball mill laarmann group bv lmbrm ball and rod mill laarmann group bv lmrm1000 rod mill
Patterson continuous ball tube and rod mills are designed for open or closed circuit grinding under the most severe and exacting applications by proper selection of linings and grinding media these mills may be used for practically allmetallic and nonmetallic minerals for the production of metal powders and for processing an infinite
Design sag mill production when you need it most in day 1 know more build and operate this way without precrushing transfer size t80 is the 80 passing size of ore as it passes from the sag mill to the ball mill
Designing wet ball mill equipment customer case ball bearing miningrelated equipment exporters suppliers ball bearing miningrelated equipment exporters suppliers ball bearing miningrelated equipment product offers from exporters manufacturers suppliers wholesalers and distributors globally by price quantity order delivery and shipping terms country page 1 designing wet ball mill equipment
Our wearresistant steel grinding rod is specially used in rod mill for mineral processing it has high hardness hrc4555 and strength which is better than ordinary round steel the wear resistance is increased by at least 50 which is extremely high high cost performance makes our grinding rod widely used in major rod mills in china
mill type sag fag rod mill primary ball mill secondary ball mill regrind ore feed size f80 f100 and required product size p80 determining the grinding mechanism to be favoured mill size diameter length maximum ball topup size mill rotational speed rpm
Designing of rod mill rana udyog design fob reference price get latest price description ef1 dry grinding for the same range of work dry grinding requires 13 times as much power as wet grinding ef2 open circuit grinding when grinding in open circuit ball mills the amount of extra power required compared to closed circuit ball milling is a function of the degree
Ball mills and rod mills are both excellent mining machines for grinding ores into fine powders and particles however many customers are confused when they choosing equipments for grinding due to their similar appearance this paragraph is a brief explanation to the difference of ball mill and rod mill below the calling name of ball mill and rod mill comes from the different grinding medium
Every mining operation has a unique grinding process metso has experience of over 8000 grinding mills globally including manufacturing and delivering the largest sagag mills in the world our experts welcome the opportunity to assist you with circuit and circuit control design as well as startup operation and optimization of your mill
Recommendation of ball mill and rod mill ball mill and rod mill are suitable for different materials 1 the daily maintenance requires constant addition of a certain amount of steel balls while the rod mill only needs to be inspected and replaced in a period of product of the rod mill is rough but the particle size is uniform coarse particles and slime are less the over
Rod mill introduction the hongxing rod mill manufacturer adopts advanced controllable feeding and discharging technology combined with the actual grinding material with the appropriate grinding body and the traditional surface contact is changed into line contact so that the discharge granularity is more uniform and the output is higher
Ball mill designpower 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 the type of circuit
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