用颗粒破碎速率分析助磨剂的作用

ANALYZING THE EFFECTIVENESS OF GRINDING AIDS BY SPECIFIC RATE OF BREAKAGE

本文从粉磨过程动态模型出发,研究了在不同助磨条件下助磨剂对粉磨过程的作用。利用颗粒破碎率 Si=Kt^(-n)这一表达式,在计算机上对实验数据进行回归分析得到了 K 和 n 的值,并分析比较了 K 和 n 的变化规律。

Starting from the kinetics of comminution and using the mathematical expression of the specific rate of breakage S_i=Kt^-n,we got the values of K and n by nonlinear regression of the sieve residues of every single size inte- rval at different grinding times under various grinding aid conditions.The effectiveness of grinding aids was approached by analyzing K and n.