蛋壳超微粉碎技术研究

Technique Research of the Ultra-fine Pulverization to the Eggshell

以蛋壳为原料，利用行星式球磨机对蛋壳超微粉碎的制备技术进行了研究。在蛋壳超微粉碎过程中，在对原料水分含量、超微粉碎时的球料比、设备转速、研磨时间等影响因素进行单因素试验的基础上进行了正交试验，从而确定最佳工艺参数，并确定最优水平组合为：研磨时间为2h，水分含量为3％，转速为240r／min，球料比为8。蛋壳超微粉的粒径达到5μm以下。

The eggshell was taken as material to study the ultra-fine pulverization technique of eggshell by means of Ball Mill. In the process of pulverization, the orthogonal experiments were carried out on the basis of single factor experiments which were fulfilled with material moisture, ratio of ball to material, revolution and rubbing time. Thereby, the optimal conditions were obtained as follows： rubbing time 2 h, material moisture3%, revolution 240 r/min, and the ratio of ball to material was 8. The granularity of eggshell ultra-fine powder was less than 5 μm.