The effect of mill speed on kinetic breakage parameters of clinker and limestone
The effect of mill speed on kinetic breakage parameters of clinker and limestone
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DOI：
10.1016/j.cemconres.2003.12.025
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发表时间：
2004-08-01
影响因子：
11.4
通讯作者：
Deniz, V
中科院分区：
文献类型：
--
作者：
Deniz, V
In this study, the effect of mill speed was investigated on the limestone and the clinker samples of Goltas Cement Factory (Isparta, Turkey) at batch grinding conditions based on a kinetic model. For this purpose, first, six different monosize fractions were carried out between 0.850 and 0.106 mm formed by a two-sieve series. Then, S-i and B-ij equations were determined from the size distributions at different grinding times, and the model parameters (S-i, a(T), alpha, gamma, and phi(j)) were compared for five different mill speed (fractional of mill critical speed; 55%, 65%, 75%, 85%, and 95%).The effect of the fraction of mill critical speed (phi(c)) on the grinding for model parameter a(T) was found to be different for two different samples: a(T)=0.0344 exp(0.00301 phi(c)) for clinker and a(T)=0.0225 exp(0.06183 phi(c)) for limestone. Additionally, it was found in this study that optimum grinding occurs at phi(c)=85%, in contrast to the 70% of critical speed of the ball mill in the cement factory. (C) 2004 Elsevier Ltd. All rights reserved.
