Further studies of ball and powder filling effects in ball milling

Shoji, K.; Austin, L.G.; Smaila, F.; Brame, K.; Luckie, P.T.

doi:10.1016/0032-5910(82)80013-2

Cited by 78 publications

(27 citation statements)

References 5 publications

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“…However, it can be said that Eqns. (4), (5), (6) and (8) are applicable for higher values of J (in the range of 30 % to 40 %), while the results derived by Shoji K. et al (1982) (Eqn. (7)) and the present study are applicable over a wider range of ball filling volume J.…”

Section: Simulation Of the Grinding Process And Validation Of Resultsmentioning

confidence: 99%

“…(1960) proposed the following relationship for wet grinding in overflow ball mills to scale-up results from laboratory tests to larger mills Beeck R. (1970) proposed that for dry grinding of cement the following relationships, based on data from German and U.S plants respectively, could be used. Shoji K. et al (1982) studied the specific rate of breakage in relation to the ball filling volume for quartz grinding using two tumbling ball mills with different capacity. They proposed the following relationship for mill diameter 0.6 m 1.20 2.3 1 e 1 6.6…”

Section: Introductionmentioning

confidence: 99%

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Identification of Optimal Mill Operating Parameters during Grinding of Quartz with the Use of Population Balance Modeling

Petrakis¹,

Stamboliadis²,

Komnitsas³

2017

KONA

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It is known that ball milling is an energy intensive process and great efforts have been made over the years to improve energy efficiency. The use of population balance models (PBMs) can assist in the design of mineral processing circuits and the scale-up of laboratory mill results to full-scale. However, since each model has its own capabilities and limitations, it is believed that a combined use will provide more accurate information for the reliable description of the process. In this study, the simulation of grinding of quartz is investigated in order to identify the optimal mill operating parameters. With the use of population balance modeling the specific rate of breakage and the cumulative breakage parameters can be determined from mono-size, short grinding time batch tests. The determined breakage parameters were back calculated by minimizing the residual error between experimental and reproduced size distributions. By combining two software packages the back calculated breakage parameters were used for the prediction of the optimum ball filling volume. The proposed procedure can be also applied for the identification of optimal mill operating parameters for other minerals.

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Section: Simulation Of the Grinding Process And Validation Of Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Identification of Optimal Mill Operating Parameters during Grinding of Quartz with the Use of Population Balance Modeling

Petrakis¹,

Stamboliadis²,

Komnitsas³

2017

KONA

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show abstract

“…The parameters j,  and  define the size distribution of the material being ground. j,  and  parameters in the model, subscript j stands for the discrete form, and Xi is the upper size of the particle size to smaller size interval (Shoji et al 1982;Austin, Klimpel, and Luckie 1984).…”

Section: Theorymentioning

confidence: 99%

“…Austin has reviewed the advantages of this approach and the scale-up of laboratory data to full-scale mills has also been discussed in a number of papers (Austin, Bagga, and Çelik 1981). Shoji et al (1982) investigated the effects on the grinding of powder filling, for wet and dry grinding of quartz in a laboratory ball mill. The general shape of the curve of the breakage rate vs. powder filling was explained as follows.…”

Section: Introductionmentioning

confidence: 99%

The effects of powder filling on the kinetic breakage parameters of natural amorphous silica

Denız

2016

Particulate Science and Technology

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In this study, the effects of powder filling were investigated on the natural amorphous silica at batch grinding conditions based on a kinetic model. For this purpose, firstly eight different mono-size fractions were carried out between 1.7 and 0.106 mm formed by a 2 sieve series.Then, Si and Bi,j equations were determined from the size distributions at different grinding times, and the model parameters (Si, aT, , , j and ) were compared for four different powder fillings (5, 10, 15 and 20%). Finally, model parameters for every test and interstitial filling fraction (U = fc/0.4 J) taking into consideration, the effects of the powder filling (fc) were discussed with respect to maximum mill capacity.In this study, it was found that the optimum value of U for the highest mill capacity is above 166.7% for an effective ratio for the natural amorphous silica. The effects of powder filling on the grinding process, this study found different results than other investigators.

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“…Shoji et al (1982) investigated the influence of the ball charge filling ratio on the specific power consumption for the grinding of quartz sand. They found a flat minimum at a ball charge filling ratio of about 15%.…”

Section: State Of the Art-l/d Ratio And Ball Charge Filling Ratiomentioning

confidence: 99%

Optimization of continuous ball mills used for finish-grinding of cement by varying the L/D ratio, ball charge filling ratio, ball size and residence time

Schnatz¹

2004

International Journal of Mineral Processing

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Further studies of ball and powder filling effects in ball milling

Cited by 78 publications

References 5 publications

Identification of Optimal Mill Operating Parameters during Grinding of Quartz with the Use of Population Balance Modeling

Identification of Optimal Mill Operating Parameters during Grinding of Quartz with the Use of Population Balance Modeling

The effects of powder filling on the kinetic breakage parameters of natural amorphous silica

Optimization of continuous ball mills used for finish-grinding of cement by varying the L/D ratio, ball charge filling ratio, ball size and residence time

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