纤维素连续酶解装置的混合输送器性能研究

设计了一种用于纤维素酶解的卧式平推流连续酶解反应器，以实现酶解工艺的连续化生产。应用Polyflow软件，分析了不同类型混合输送器在纤维素酶解混合物料处于高黏度时期的混合、输送、返混、功耗及破碎性能。结果表明：等外径混合输送器的功耗最低，输送能力一般，混合、返混及破碎性能较差；变外径混合输送器混合、返混、破碎性能比等外径混合输送器要好，但输送和功耗性能一般；内外螺带型混合输送器的混合、输送、返混及破碎性能均较好，功率耗能稍高，但基本与其他两种形式混合输送器功耗水平一致。对上述性质进行综合评价，得到结论：内外螺带型混合输送器更适合纤维素物料处于高黏度阶段时的连续酶解。

The Performance Research of Mixed Conveyor in Cellulose Continuous Enzymolysis Reactor

In this paper, a horizontal continuous enzymolysis reactor with plug flow field is designed for cellulose enzyme solution, so that continuous production of enzyme reacting come true. This used polyflow to analysis performance of mixing, conveying, back-mixing, power dissipation and crushing with different kinds of mixed conveyor, when cellulose enzyme solution hybrid material is in the period of high viscosity. It turned out that mixed conveyor with consistent outside diameter had a good performance in power dissipation, a general one in conveying and a poor one in mixing, back-mixing, crushing; mixed conveyor with variable outside diameter had a better performance in mixing, back-mixing, crushing than above, but had a general one in conveying and power dissipation; mixed conveyor with in-outside screw had the best performance in mixing, conveying, back-mixing and crushing, power dissipation, a general one in conveying and a poor one in mixing, back-mixing, crushing, and power consumption is a little bit higher. By comprehensive evaluation to above performance, mixed conveyor with in-outside screw is most suitable for cellulose material in high viscosity during the period of continuous enzymolysis.