Polylactic Acid Polymerization Reactor With Magnetic Agitation

The patent introduces a vibration device that generates radial vibration in the melt flow direction, creating vibration-induced convection currents that enhance mixing and reduce retention time without compromising conveying speed. The vibration frequency is controlled at 50-200Hz to optimize both mixing efficiency and flow rate.

The patent employs periodic reciprocating motion of the screw conveyor and periodic vibration cycles to create alternating flow patterns that prevent stagnation while maintaining continuous production. The screw conveyor moves forward and reverses periodically to redistribute melt and eliminate dead zones.

The vibration device generates high-frequency radial vibrations that disrupt laminar flow patterns and create turbulent mixing zones, ensuring uniform dispersion of additives throughout the melt. This vibration-induced turbulence eliminates the stratification problems inherent in conventional laminar flow reactors.

The patent introduces localized mixing zones with different flow characteristics along the reactor length. The vibration intensity and frequency are varied at different positions to create optimal mixing conditions in specific regions while maintaining overall flow continuity.

The vibration device creates periodic disturbances that prevent melt stagnation near reactor surfaces and eliminate dead zones. The radial vibration induces convection currents that continuously refresh the melt at the walls, ensuring uniform reaction conditions and preventing degradation from excessive retention time.

The patent maintains continuous vibration and reciprocating motion throughout the polymerization process to ensure that all melt portions experience consistent mixing and reaction conditions. This continuous action prevents periodic stagnation and ensures uniform product quality.