29/04/2017· Then in ball wear formula , T = 6.9/K Log10 Da/Db; but from , K = Rt/Wt. Then T = 6.9Wt/Rt Log10 Da/Db T is 1 day, Wt is the original weight of the ball charge, and Rt is the ball wear for one day. Then Log10 Da/Db = Rt/6.9Wt are all known, and it is only necessary to solve for Db, the diameter of the balls to be added.
If crop load =ore + grinding mill media +water But usually, it was used in a percentage formation. So how to calculate this percentage. I hear that generally 40% of mill volume is used by media and 60% of it is solid , 40% is void.
In our iron concentrator plant we use a wet ball mill for grinding of fresh feed. It operates in a close circle with hydrocyclones. The overall data of ball mill and hydrocyclones are following: Ball mill: F80: 4 mm. Diameter: 5.5 m. Length: 10.5 m. Make up regime of ball charge: sizes 40 and 60 mm with equal ratio. Hydrocyclone:
Wet Ball Mill = kg kWh = 0.16 0.33; Dry Ball Mill = kg / kWh = 0.023A i 0.5; Replacement Ball Size. Rowland and Kjos proposed the use of their equation for the determination of the initial and replacement media size. Azzaroni and Dunn recommended the use of the following expression for the size of the makeup media: Ball Bulk
13/02/2017· 1800 mm X 3000 mm 72 X 120 = 6 X 10 and up to 10 x 12. Choice of liners including ceramic, manganese, decolloy, alloy steel or steel plate in wide variety of types, including blade type liner for washing tenacious clay from the product.
19/06/2015· We can calculate the steel charge volume of a ball or rod mill and express it as the % of the volume within the liners that is filled with grinding media. While the mill is stopped, the charge volume can be gotten by measuring the diameter inside the liners and the distance from the top of the charge to the top of the mill. The % loading or change volume can then be
where S i E is the energy specific rate of breakage parameter, P the net power drawn by the mill, and M the mass of charge in the mill excluding grinding media . The energy specific breakage rate is commonly given in t kWh 1. For a continuous mill, the relationship is: S i τ = S i E P F
The crop load of ball mill. It =ore + mill medium +water. But usually, it was used in a percentage formation. So how to calculate this percentage. I know this is really a basic question, but it puzzled me, for most books and papers just use it but nor explain it. Paul Morrow 6 years ago Like
02/08/2013· Based on his work, this formula can be derived for ball diameter sizing and selection: Dm <= 6 * d^0.5 where D m = the diameter of the single sized balls in mm.d = the diameter of the largest chunks of ore in the mill feed in mm.
19/06/2015· Ball Mill Power Calculation Example 1. A wet grinding ball mill in closed circuit is to be fed 100 TPH of a material with a work index of 15 and a size distribution of 80% passing ¼ inch . The required product size distribution is to
June 10, 2020
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