Percentage recovery of triethyl amine is > 98% with a process using a helical-element static mixer, a gravity decanter, and a heterogeneous azeotropic distillation tower. Energy consumption is low and the operation is convenient.
采用由单螺旋片静态混合器、重力层析器与非均相恒沸精馏塔相组合的流程，三乙胺的回收率达98%以上，且操作简便、节能显著。
Inquiry About Concrete-mixer Truck Drum Logarithm Helical Curve Screw Pitch
砼搅拌运输车搅拌筒对数螺旋线螺距的探讨
This paper introduced setting up the parametric expressions, and how to creating the helical curve and unwrapping the curve on the plane based on UG by the parametric unwrap equation of concrete-mixer drum logarithm helical curve.
推导出搅拌运输车搅拌筒对数螺旋线平面展开方程，用UG的参数表达式来实现螺旋线和在平面上展开曲线的生成。
A new helical micro - mixer was designed.
设计了一种新型的螺旋式微混合器。