中文摘要：

采用LNI-66A型分级式冲击磨对粗碎后的水牛角粉进行粉碎，考察锤头数量、锤头高度对产量、锤头磨损量、磨盘磨损量的影响。结果表明：粉体产量随着锤头数量的增加而逐渐降低，随锤头高度的增加而先增大后减小，当锤头数量为4个，锤头高度为30mm时，粉体产量最高；随着锤头数量的增多，锤头磨损量逐渐降低，随着锤头高度的增加，锤头磨损量先减小后增大，当锤头高度为30mm时，锤头磨损量最低；磨盘磨损量随锤头数量、锤头高度的增加，无太大变化．

英文摘要：

The impacts of number of beater and beater height change to yield, beater wear amount and disc wear amount of mill were investigated, using LNI-66A classify-impact mill to crush buffalo horn powder. The experimental results show that the powder yield decreases along with the increase of number of beater, first increases then decreases along with the increase of beater height. When the number of beater is 4 and the beater height is 30 mm, yield of powder is the highest. The beater wear amount decreases along with the increase of number of beater, first decreases then increases along with the increase of beater height. When the beater height is 30 mm, beater wear amount is the lowest. With the number of beater and beater height increase, the disc wear amount of mill has no change.