You now have the unit capacity Then take the volumetric feed rate of the new ore per time Divide the unit capacity by the feed rate and you have the nominal retention time Say your unit capacity is 12 cubic meter and you are feeding 6 cubic meters per hour your retention time would be about 5 minutes
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Get PriceHow To Calculate Residence Time In A Ball Mill Figure 815 Residencetime distribution function for solids in a continuously operating ball the mill and examining how the specific power input varies with mill size and with design and operating135 8114 To size a ball mill or rod mill that must process W tonshr it is necessary to calculate
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Get PriceAug 11 2010 · Re MATERIAL RETENTION TIME IN A BALL MILL VRM You could do that by measuring the material flowrate Qtonsh through the mill as well as the quantity Mtons of material that accumulates within the mill The retention time also called residence time is the ratio MQ h The flowrate Q could be measured from the production Ptonsh
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Get PriceThe degree of milling in a ball mill is influenced by Residence time of the material in the mill chamber The size density and number of the balls The nature of the balls hardness of the grinding material Feed rate and feed level in the vessel Rotation speed of the cylinder
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Get PriceHow do you calculate ball mill residence time – The QA wiki mass of mill charge divided by mass flow rate Residence time – Wikipedia the free encyclopedia Residence time also known as removal time is the average amount of time that a particle spends in a particular system This measurement varies directly with the
Get PriceMar 05 2013 · Mill Residence Time Hello everyone What is an effective method to properly measure the residence time of material in a ball mill Thanks Reply Know the answer to this question Join the community and register for a free guest account to post a reply
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Get Pricethe shape of residence time distribution RTD curves provides the most useful and valid information about mixing properties within a ball mill operating at industrial scale In this work the RTD
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Get PriceMill residence time of coarse versus fine particles is unaccounted for McIvor 2018 Conflicting conclusions regarding the effects of media sizing have been reported by these modelers However some of the experimental data rates’ for the survey calculated from ball mill
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Get PriceThe 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
Get Pricemills 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 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 Priceball mill residence time How To Calculate Residence Time In A Ball Mill TECHNICAL NOTES 8943 Кб Figure Residencetime distribution function for solids in a continuously operating ball the mill and examining how the specific power input varies with mill size and with design and To size a ball mill or rod mill that
Get PriceIn ball milling of dry solids the main independent variables are mill diameter mill speed media size solids loading and residence time For most companies the production mill already exists so we can ignore mill diameter and focus on the other variables Mill Speed is one variable that can often be easily changed with a variable frequency
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Get PriceThe residence time in ball mills is long enough that all particles get consistent treatment which also provides a narrow particle size distribution Ball mills are simple in design consisting of horizontal slow rotating vessels half filled with grinding media of ¼” to 15”
Get PriceAbstractComparison between anticipated and measured mean residence time MRT along with analysis of the shape of residence time distribution RTD curves provides the most useful and valid information about mixing properties within a ball mill operating at industrial scale In this work the RTD measurements were carried out for a primary ball mill in closed circuit with hydrocyclones at two
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Get PriceResidence time distributions normalized by mean residence time as a function of feed rate for centrifugal mill operated at GD 04 60 ball filling and mill revolution speed of 240 rpm However it was found that the shape of the RTD was changed somewhat with an increase in the mill revolution speed as shown in Fig 7
Get Priceball mill residence time Study of residence time distribution and mill holdup for Residence time distributions normalized by mean residence time as a function of mill revolution speed for centrifugal mill operated at GD 04 60 ball filling and feed rate of 150 gmin It is convenient to represent the RTD in a functional form
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Get PriceHow To Calculate Residence Time In A Ball Mill Figure 815 Residencetime distribution function for solids in a continuously operating ball the mill and examining how the specific power input varies with mill size and with design and operating135 8114 To size a ball mill or rod mill that must process W tonshr it is necessary to calculate
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Get PriceHow do you calculate ball mill residence time answers ball mill is widely used in metal and nonmetal mines building materials and other industrial sectors of various minerals and rock grinding operation the main influencing factor on the retention time is the mill length 32 calculation of the critical mill
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