食品科学 ›› 2003, Vol. 24 ›› Issue (12): 55-57.

• 基础研究 • 上一篇    下一篇

螺杆挤压过程食品流动能力计算与综合修正

 何阳春, 洪咏平, 周保堂   

  1. 浙江大学材料与化工学院,杭州商学院食品、生物与环境工程学院,浙江大学化工机械研究所
  • 出版日期:2003-12-15 发布日期:2011-12-13

Calculation and Comprehensive Modification of Food Flow Dynamics During Screw Extrusion

 HE  Yang-Chun, HONG  Yong-Ping, ZHOU  Bao-Tang   

  1. 1.College of Material and Chemical Engineering of Zhejiang University;2.College ofFood,Biology and Environment Engineering of Hangzhou University of Commerce;3.Institute of Chemical Mechanics of Zhejiang University
  • Online:2003-12-15 Published:2011-12-13

摘要: 螺杆挤压推料是食品加工过程中完成食品的输送、挤压与混合的常用工序,确定螺杆挤压过程食品流动能力,是为研究食品加工工艺及设备提供必要的条件。本文针对具有幂律非牛顿流体特性的一类食品,对前人的螺杆挤压流动模型及公式进行了简化与扩展,并提出了一种模型修正法——综合系数修正法。

关键词: 螺杆挤压, 食品流动能力, 计算, 综合修正

Abstract: Stuffing pressing by means of screw extrusion is a common procedure in realizing food feeding, squeezing, and mixingduring food manufacturing.The food flow dynamics determined during screw extrusion could be used to provide the necessaryconditions for researching food producing techniques and equipments. Focusing on the food with the characteristics of powerrule and no-Newtonian fluidity, the paper predigested and expended the existing screw extrusion flow models and formulas, andpresented a model modification method - comprehensive coefficient modification method.

Key words: screw extrusion, food flow dynamics, calculation, comprehensive modification