THE MAGNETITE ORE PROCESSING PROJECT IN GUA MUSANG, MALAYSIA

Processed Material:  Magnetite Ore

Mine Method:   Surface

Product Size:   0-10,10-50mm

Work Time:   10h

Ore Density:   2.6t/m³

Capacity:   4500t/d

Grade:   53.8%

The evaluation by customer: Because of our high requirements for final particule granularity, I have followed the views of LIMING engineer with a two-stage crushing - a PE Jaw Crusher for primary crushing and two Hydraulic Cone Crusher HST160 for secondary crushing. Quite stable performance, also the production makes me satisfied. To my most pleasant surprise, the intelligent operation of machine has saved me a lot of time and also costs.



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  • Optimization of mill performance by using online ball - SciELO SA

    is required to obtain the accurate ball load measurement or the percentage by volume of balls in the mill. This is usually performed soon after a crash stop. The basic principle is to measure the height 'H' from the charge to the shell and the internal mill diameter 'Di'. By calculating the ratio 'H/Di' and using the graph below.

  • Energy Savings and Improved Recovery with Small Grinding Media

    milling? In regrind appliion, a vertical stirred mill with small media (5-12 mm Millpebs) will require at least 62% less energy than a ball mill charged with 25 mm grinding media. INTRODUCTION When calculating the recommended ball top size from Bond's formula (Bond, 1961), the size for regrind appliions is much 

  • effects of grinding media shapes on ball mill - WIReDSpace

    speed for all media shapes reaching its peak at different mill speeds for the three shapes studied. Variations of Considering that worn balls in an industrial mill charge constitute about 15 to 40 percent and that the highest It is based upon the two-power calculation approaches used in majority of ball and rod mill design 

  • Theories of ball wear and the results of a marked-ball test - SAIMM

    Predictions based on theory and the results obtained in a marked-ball test in a ball mill are compared in of ball. In this procedure, the entire charge of a mill is .. Decrease in the Calculated Ball Consumption. The calculated ball consumption of marked balls. (column 9 of Table I) was obtained with the aid of the formula.

  • The grinding charge of rotary mills - Analele Universitatii Dunarea

    Bulk density of grinding media can be determined (if ρ and ε are known), with the relation. ) 1( ε ρ ρ. −. = cm. (2). The relation (2) is useful also for the determination of the porosity ε, when ρ and cm ρ are known. For the complete use of free spaces between balls and the increasing throughput of the mill, the charge consists in 

  • Ball_mill_Finish Mill Ball Charge Calculation - Scribd

    Ball Mill . t 50 40 30 25 20 17 15. % 0 0 15 20 22 23 20 100. 0 0 26.2 34.9 38.4 40.2 34.9 174.6. 10/21/2012 t 0 0 15.72 20.94 23.04 24.12 20.94 104.76 60 104.76. 60% % 0 0 15 20 22 23 20 100. 80% t 0 0 21 28 31 32 28 140 80. Chamber 1 - 11 m L x Φ 4.4 m 50 40 30 25 20 17 15. Total. 0 0 26.2 34.9 38.4 40.2 34.9

  • ball mill efficiency equation pdf

    Key words: Ball drum mill Grinding media Material grinding Grinding efficiency Mode of grinding media motion Power consumption Calculation method. The F.C. Bond Ball Mill is a small universal laboratory mill used in calculating the The ball charge is prepared by starting with 285 balls, consisting of approximately equal 

  • Ball Mill Instruction Manual (PDF) - BICO Inc.

    The F.C. Bond Ball Mill is a small universal laboratory mill used in calculating the The ball charge is prepared by starting with 285 balls, consisting of approximately equal weights ofvarious size balls. These sizes include: 3/4 incbr T 18 irrch, 1 inch, 1-114 inch unconnectcd media such as rods, balls, rock piec€s aEd.

  • A COMPARISON OF WEAR RATES OF BALL MILL - CEON-a

    methodology was applied to investigate the wear rates of four grades of grinding media using two small laboratory ball mills. The rankings obtained from the tests . comparison of wear rates of different materials under identical conditions. Media to be tested is charged into the operating plant mill. The samples are weighed 

  • Analysis of ball movement for research of grinding - Springer Link

    Abstract−A simulation of the three-dimensional motion of grinding media in the stirred media mill for the research of grinding media mill. In the stirred ball mill, there are some stirrers and the calculation of its consumed powder becomes more complied to compare with the simpler kinetics of . Initial charge of the balls.

  • TECHNICAL NOTES 8 GRINDING RP King - Mineral Technologies

    is the angular velocity, mp is the mass of any particle (media or charge) in the mill and Dm is the diameter of the mill The critical speed of the mill, c, is defined as the speed at which a single ball will just remain against the wall for a full cycle. At the top . A value of K = 9.32 makes Austin's formula agree with Morrell's data.

  • MEASURING THE EFFICIENCY OF THE TUMBLING MILL AS A

    grinding media. In this research, the measuring method was successfully developed by custom- building the batch mill that facilitates changeable lifters and is equipped with a state-of-the art load cell for force the outer charge trajectories of each lifter could go down on the mill shell rather than on the toe of the mill charge, 

  • Best way to determine the ball-to-powder ratio in ball-milling?

    To really choose, I guess it depends on the material and your mill (vial, RPM, media, filling volume). I.e. Si80Ge20 is easily alloyed in the high energy SPEX mill. But thermoelectric materials like skutterudites with a peritectic decomposition don't do so well in the SPEX. They can be contaminated by the harden steel vial, and 

  • effect of operational variables on ball milling - Poli Monografias - UFRJ

    Therefore, it was possible to verify enhanced process efficiency for bigger grinding media and intermediate degree of both mil filling and percentage of solids. The use of DEM through the software EDEM® provided an outstanding tool for analyzing charge movement inside ball mills. However, in order to achieve absolute 

  • The Power Consumption Calculation of a Ball Drum Mill - Idosi

    Key words: Ball drum mill Grinding media Material grinding Grinding efficiency Mode of grinding indie that they have certain common patterns. In general, the power consumption is calculated by in the power transmission from a drive to grinding bodies. the formula: A degree of charge factor varies in magnitude from.

  • Ball charges calculators - The Cement Grinding Office

    Ball top size (bond formula): calculation of the top size grinding media (balls or cylpebs):. - Modifiion of the Ball Charge: This calculator analyses the granulometry of the material inside the mill and proposes a modifiion of the ball charge in order to improve the mill efficiency: - Ball charges composition: These 

  • Mill (grinding) - Wikipedia

    In spite of a great number of studies in the field of fracture schemes there is no formula known which connects the technical grinding work with grinding results. To calculate the needed grinding work against the grain size changing three half-empirical models are used. These can be related to the Hukki relationship between 

  • Ball Mill Capacity Dimensions -2013.indd - Paul O. Abbe

    steel media. 50% charge. (pounds). A. B. C. D. E. F. G usg ft3 usg ft3 usg ft3 pounds cylinder diameter cylinder length cylinder to floor height length depth hatch weight. (w/o media). BM - 16. 16. 2.1. 9.6. 1.3. 4.0. 0.5. 322. 46. 43. 15. 21. 18. 42. 52. 43. 5.3 x 5.3. 780. BM - 26. 26. 3.5. 16. 2.1. 6.6. 0.9. 530. 42. 39. 18. 24. 18. 45.

  • International journal of advanced scientific and - RS Publiion

    grinding in ball mill.We proposemore precise empirical equation for modified HGI relating withgrindability m, for broad based appliion for variety of minerals Grinding media are ceramic and steel balls of 10 mm, 15 mm, 20 mm and 25 mm diameter and density from 4.5 to 7.8 g/cm. 3 . The mill rotates at different speeds