SAG mill trommel screen undersize will flow by gravity to the ball mill discharge pumpbox where it will join the ball mill discharge 173 Ball Mill Grinding The secondary grinding circuit will consist of a ball mill in closed circuit with cyclon For Phase I, one large ball mill is required For Phase II, a second identical ball mill will be ,

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Get PriceBall Mill & Discharge Trommel , Small variations in the feed size to ball mill circuits generally is not critical to the calculation of operating work index because they make a very small change in the 10 ÷ √F factor Thus, a computer program can be developed to calculate operating work indices from on-line data with the feed size a ,

Get PriceSAG Mill picture and general shape , A trommel is a slightly inclined rotating cylindrical screen The material is fed at one end of the cylinder and the undersize material falls through the screening surface while the oversize is conveyed by the rotating motion down the incline to the discharge end Although trommels are relatively cheap ,

Get PriceA trommel screen, also known as a rotary screen, is a mechanical screening machine used to separate materials, mainly in the mineral and solid-waste processing industri It consists of a perforated cylindrical drum that is normally elevated at an angle at the feed end Physical size separation is achieved as the feed material spirals down the rotating drum, where the undersized material ,

Get PriceThe calculations determine the power which must be applied at the mill to , trommel screen mounted on the mill discharge trunnion, which is the most common, Read more HomeMade Rotary Trommel Screen : Nifty-Stuff

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Get PriceThe diameter of the trommel for the 34-foot mill is 135 feet and the screen surface length is almost 13 feet This gives us about 550 square feet of screen area, for roughly 30,000 tons a day or 1,300 tons an hour These trommels were the first of their size for the tonnage handled Hibbtac trommels ,

Get PriceThe SAG mill was designed to treat 2,065 t h −1 of ore at a ball charge of 8% volume, total filling of 25% volume, and an operating mill speed of 74% of critical The mill is fitted with 80 mm grates with total grate open area of 766 m 2 (Hart et al, 2001) A 45 m diameter by 52 m long trommel screens the discharge product at a cut size ,

Get Pricemill specific power, pilot plant ball mill specific power, pilot plant product size distributions and Bond-type calculations (as reported by Rowland (Rowland, 1982) and modified by Minproc) SAG Mill Dimensions: The SAG mill was designed for monzonite ore, with allowance in the mine schedule for reduced throughput when treating the harder ,

Get PriceJul 01, 2017· A trommel is a rotary cylindrical structure that is rigidly attached to the discharge end of a mill The intended operation of the trommel is shown schematically in Fig 1It contains moulded screen panels or wire mesh and can have different aperture configurations in each axial section depending on the intended duty

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Get PriceA SAG Mill trommel screen lets you control the true discharge size of your SAG mill or the transfer size to the downstream Ball Mill circuit A well sized trommel should not let rocks pass to the Ball Mill if they are to be more than say 5/8″ or 16mm In the image case below, strangely enough, is the mill shell liner and discharge grate manufacturer The grates it provides to this Cu/Pb ,

Get PriceThe trommel may remove all this material and therefore the efficiency is Material B may contain 50% material

Get PriceAug 29, 2020· This paper shows how small calculators can be used for ball mill simulations Two calculations are examined, the first to calculate the mill parameters and the second to predict the mill ,

Get PriceSAG mill is usually used to grind large pieces into small pieces, especially for the pre-processing of grinding circuits, thus also known as primary stage grinding machine Based on the high throughput and coarse grind, AG mills produce coarse grinds often classify mill discharge with screens and trommel

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