摘要
在实验室制粒系统,通过改变粉料在调质器内的调质效果及制粒机工艺参数,考察了入模水分、辊模间隙及压模孔长径比(L/d)对制粒机的生产率、电耗及颗粒饲料质量的影响.结果表明:在保证颗粒质量的前提下,可通过调控入模水分、辊模间隙和压模孔长径比(L/d)等工艺参数,达到提高制粒生产率,降低电耗的目的.对于含谷物高的配合饲料,制粒的适宜条件是:调质入模水分为15%～16%,辊模间隙为0.7mm,压模孔长径比(L/d)为10.
In the laboratory pelleting system, by changing the moisture content of powdered feed and other pelleting conditions at pelleting section, The effects of moisture content of inlet powder feed, clearances between rolls and die, and the aperture ratio of die(L/d) on productivity, power consumption, and quality index of pellet were investigated. Results showed that under the condition of ensuring the pellet quality, by adjusting and controlling the pelleting conditions mentioned above, the target of increasing productivity and reducing power consumption could be achieved. The results also showed that for high cereal formula feed, the optimum conditons are as follows: moisture content is 15%～16%, clearance between rolls and die is 0.7mm, the aperture ratio of die (L/d) is 10.
基金
国家"九五"科技攻关项目(96-009-04-02)资助课题.
关键词
制粒
入模水分
辊模间隙
工艺效果
pelleting
conditional moisture content
clearances between die and rolls
process performance
