Applications of grinding kinetics analysis to fine grinding characteristics of some inorganic materials using a composite grinding media by planetary ball mill

2001 ◽  
Vol 115 (3) ◽  
pp. 209-214 ◽  
Author(s):  
W.S Choi ◽  
H.Y Chung ◽  
B.R Yoon ◽  
S.S Kim
Keyword(s):  
Ball Mill ◽  
Inorganic Materials ◽  
Planetary Ball Mill ◽  
Kinetics Analysis ◽  
Fine Grinding ◽  
Grinding Media ◽  
Grinding Kinetics

The Effects of Rotation and Revolution Speed Ratio on the Grinding Kinetics of Cement Clinker in Horizontal Planetary Ball Mill

2013 ◽  
Vol 821-822 ◽  
pp. 1394-1397
Author(s):  
Hai Yan Qian ◽  
Qing Gang Kong ◽  
Jin Shi Chen
Keyword(s):  
Ball Mill ◽  
Planetary Ball Mill ◽  
Cement Clinker ◽  
Speed Ratio ◽  
Specific Rate ◽  
Revolution Speed ◽  
Effects Of Rotation ◽  
Grinding Kinetics ◽  
Steel Balls ◽  
Kinetics Of

The effects of rotation and revolution speed ratio on the grinding kinetics of cement clinker were studied in a horizontal planetary ball mill. The grinding media and material were used in the tests: 20mm diameter steel balls, cement clinker of-2.36+2.00mm. The rotation and revolution speed ratio is 1, 1.5, 2, 2.5, 3 and 3.5. The results show that cement clinker obeys first-order grinding kinetics at different rotation and revolution ratio. The specific rate of breakage reaches the highest when the ratio equals to 2. γ achieves minimal value at ratio q=2 and 2.5. At the same time, φ and β values reach the lowest value.

Effect of Milling Time on Particle Size and Surface Morphology of Commercial Zeolite by Planetary Ball Mill

2013 ◽  
Vol 795 ◽  
pp. 711-715 ◽  
Author(s):  
N.Z.F. Mukhtar ◽  
M.Z. Borhan ◽  
Mohamad Rusop ◽  
Saifollah Abdullah
Keyword(s):  
Particle Size ◽  
Ball Milling ◽  
Ball Mill ◽  
Milling Time ◽  
Size Range ◽  
Synthetic Zeolite ◽  
Inorganic Materials ◽  
Planetary Ball Mill ◽  
Dry Grinding ◽  
Particle Sizer

Ball milling is a top down approach and a method to reduce size of particle while Zeolite is a valuable inorganic materials having wide variety of applications. In this paper, ball milling of commercial synthetic Zeolite powder was studied with their time varied. Wet ball milling was selected as a potential means to decrease the particle size of Zeolite over dry grinding. The parameters that included in this study were rotational speed, balls to powder ratio, water to powder ratio and milling time. These nanozeolite were characterized via Zeta-sizer nanoseries of particle sizer, FESEM, and also FTIR. Results showed that commercial synthetic Zeolite powder with particle size larger than 45 μm may be reduced into the size range between 0.2 0.3 μm by planetary ball mill.

Application of grinding kinetics analysis of inorganic powders by a stirred ball mill

2009 ◽  
Vol 26 (6) ◽  
pp. 1806-1812 ◽  
Author(s):  
Heekyu Choi ◽  
Woong Lee ◽  
Seongsoo Kim ◽  
Jinyeon Hwang
Keyword(s):  
Ball Mill ◽  
Kinetics Analysis ◽  
Stirred Ball Mill ◽  
Grinding Kinetics

scholarly journals INFLUENCE OF DIFFERENT ASSORTMENT OF TWO-BALL GRINDING LOAD ON THE PERFORMANCE OF AN OPEN-CYCLE BALL MILL

2021 ◽  
Vol 6 (5) ◽  
pp. 63-70
Author(s):  
I. Borisov ◽  
A. Stronin
Keyword(s):  
Ball Mill ◽  
Mechanical Energy ◽  
Chemical Properties ◽  
Grinding Process ◽  
Fine Grinding ◽  
Grinding Media ◽  
Physical And Chemical ◽  
Selection Of ◽  
Rational Composition ◽  
And Chemical Properties

The ball mill has an energy efficiency of no more than 3.5 % (taking into account the measures taken to intensify the process of grinding the material). This is due to the imperfection of the design of the grinding unit, which consists in the fact that it is impossible to completely convert the mechanical energy accumulated by the grinding load into grinding energy (i.e., energy directly spent on the destruction of material particles). Most of the stored energy is converted into heat, noise, and vibration. The existing directions of intensification of the grinding process are as follows: improvement of the design, internal equipment of the cement mill; changes in the physical and chemical properties of the grinding medium; improvement of the grinding scheme. The authors of this article work in the direction of improving the internal equipment, which is reflected in the scientifically based selection of the range of grinding media for the fine grinding chamber, since the rational composition of the grinding load can significantly reduce the energy consumption of the grinding process. The authors continue to study the possibility of using a two-ball loading in a fine grinding chamber. This article provides a brief overview of the different ranges of two-ball grinding loadings, which differ from each other only in the range of grinding media. The possibility of a significant increase in the productivity of the mill when replacing the traditional grinding load with a rational two-ball is shown

The Effect of Ball Media with Different Diameters on Grinding Kinetics of Cassiterite-Polymetallic Sulphides

2013 ◽  
Vol 470 ◽  
pp. 154-157
Author(s):  
Jin Peng Feng ◽  
Xia Feng ◽  
Shao Jian Ma ◽  
Jie Liu ◽  
Wei Mo ◽  
...  
Keyword(s):  
Ball Mill ◽  
Fine Particles ◽  
Coarse Particles ◽  
Sulfide Ores ◽  
First Order ◽  
Grinding Media ◽  
Grinding Kinetics ◽  
Different Diameters ◽  
Kinetics Of

To investigate the effects of grinding media size on the grinding kinetics of cassiterite-polymetallic sulfide ores, the ball grinding media with diameters of 25mm, 30mm, 35mm and 40mm were studied in a laboratory ball mill. The results showed that the coarse and fine particles obeyed the first-order grinding kinetics laws in the process of grinding and the ball grinding media with 35mm diameter had a significant advantage on grinding up the coarse particles and controlling the generation of fine particles, which could provide theoretical guidance for practical production so that the grinding effects would be improved effectively and the problem of cassiterite over-grinding would also be settled very well.

Numerical Analysis of the Ball Mill Coupled with Vertical Vibration

2014 ◽  
Vol 1044-1045 ◽  
pp. 638-642
Author(s):  
Yi Sun ◽  
Xiao Huan Huang ◽  
Xiao Hang Jin
Keyword(s):  
Numerical Analysis ◽  
Numerical Model ◽  
Dynamic Analysis ◽  
Ball Mill ◽  
Vertical Vibration ◽  
Motion Equation ◽  
Fine Grinding ◽  
Grinding Media ◽  
Simulation Results ◽  
Grinding Efficiency

The motion equation of the grinding cylinder is deduced, which is based on the dynamic analysis of the grinding cylinder of the ball mill coupled with vertical vibration. Numerical model of vertical vibration ball mill is built and used to study the motion of grinding cavity media and grinding efficiency. The simulation results show that the distribution status of the grinding media in each region is changed, the grinding fragmentation of the grinding media to the material is enhanced, and the efficiency of fine grinding is improved with the coupled vertical vibration in a ball mill.

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