Ball-mill grinding kinetics of master alloys for steel powder metallurgy applications

2011 ◽  
Vol 210 (3) ◽  
pp. 267-272 ◽  
Author(s):  
Ian Bailon-Poujol ◽  
Jean-Paul Bailon ◽  
Gilles L'Espérance
2013 ◽  
Vol 821-822 ◽  
pp. 1394-1397
Author(s):  
Hai Yan Qian ◽  
Qing Gang Kong ◽  
Jin Shi Chen

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.


Fuel ◽  
2010 ◽  
Vol 89 (3) ◽  
pp. 703-707 ◽  
Author(s):  
S. Samanli ◽  
D. Cuhadaroglu ◽  
H. Ipek ◽  
Y. Ucbas

2013 ◽  
Vol 470 ◽  
pp. 154-157
Author(s):  
Jin Peng Feng ◽  
Xia Feng ◽  
Shao Jian Ma ◽  
Jie Liu ◽  
Wei Mo ◽  
...  

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.


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