justfy the operation of a rod mill in an open circuit Jul 27 2018· MILLING CIRCUIT SELECTION FOR NKOMATI 375ktpm SAIMM The circuit is sized to operate with zero steel in the primary mill and low steel 5 in two twinned open circuit ie dual discharge feed to feed one large overflow ball mill this would easily justify the additional capital cost of the circuit
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JeanPaul Duroudier in Size Reduction of Divided Solids 2016 374 Performance Rod mills are used in an open circuit between crushing and the ball mill They often operate in wet and where the pulp contains up to 50 solid by mass This machine is equally very applicable to dry where it could take a feed that has achieved 6 moisture
Get PriceClosed Circuit Grinding VS Open Circuit Grinding Open circuit grinding consists of one or more grinding mills either parallel or in series that discharges a final ground product without classification equipment and no return of coarse discharge back to the mill
Get Priceis a rod mill an open circuit justfy the operation of a rod mill in an open circuit It can be useful to use a rod mill in an open circuit then a ball mill in a closed PDF Industrial validation of the functional File formatAdobe PDF
Get Pricedifference between closed circuit grinding and opened circuit grinding Closed Circuit Grinding VS Open Circuit The simplest grinding circuit consists of a ball or rod mill in closed circuit with a classifier the flow sheet is shown in Fig 25 and the actual layout in Fig 9
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Get PriceObjectives At the end of this lesson students should be able to Explain the use of rod mills in mineral industry Explain rod mill operation Recognize different design parameters of rod mills
Get PriceReply Hi Magee Thank you for your question Open circuit system means that materials pass through grinding machine one time But if unqualified materials should be reprocessed by classifying equipment and powder satisfied requirements can be final products this case can be called closed circuit system
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Get PriceGrinding control strategy on the conventional milling circuit With the increase in ratio set point a decrease in Cyclone 1 particle size is required This control loop will increase the water to the sump to cause a decrease in cyclone overflow particle size Circulating load control The only manipulated variable available in the closed milling
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Get PriceBall Size as Initial Charge Commercial ball sizes 10 – 150 mm Number size and mass of each ball size depends on mill load and whether or not the media is being added as the initial charge For the initial chargin of a mill Coghill and DeVaney 1937 defined the ball size as a function of the top size of the feed ie d↓V 040 K√F
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Get PriceFirst consider an idealized onedimensional mill model of open circuit or continuous grinding see Fig 4–1 Here xt mt are the material flows of feed and mill product respectively Let x and m denote the discrete distributions approximating to the density functions of size distributions of the two material flows according to 37 whose ith elements give the probability of falling
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Get PriceKeywords Ball mills grinding circuit process control I Introduction Grinding in ball mills is an important technological process applied to reduce the size of particles which may have different nature and a wide diversity of physical mechanical and chemical characteristics Typical examples are the various ores minerals limestone etc
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