Vortex Flow-Assisting Blade for Uniform Particle Production
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Solution Overview
Problem
Existing particle production methods in stirred reactors result in irregularly sized and shaped particles due to diffusion limitations, requiring high power consumption for size uniformity and efficient mixing.
Innovation Solution
A reactor design featuring a flow-assisting blade that generates a vortex flow, increasing mixing and diffusion rates by rotating the blade to accelerate reactant contact and prolong retention time, resulting in uniform particle sizes and shapes while reducing power costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the rotation speed of the stirring blade is increased to produce fine particles, then the particle size uniformity is improved, but the power consumption increases
Solution Approach 1:
The patent transitions from a static stirring blade to a rotatable flow-assisting blade that creates dynamic vortex flow. The blade rotates to generate strong circulating currents that enhance mixing and particle formation without requiring high-speed continuous stirring, thereby reducing power consumption while maintaining particle size uniformity
Solution Approach 2:
The patent changes the flow regime parameter from simple stirring to vortex flow. By introducing rotational motion of the flow-assisting blade, the system creates a vortex flow pattern that enhances mass transfer and mixing efficiency, achieving fine particle production with lower energy input compared to traditional high-speed stirring
2Device complexity
If traditional stirring is used to mix reactants, then the mixing process is simple, but the diffusion limitation causes irregular particle size and shape
Solution Approach 1:
The patent introduces a rotatable flow-assisting blade that generates dynamic vortex flow, transforming the static mixing process into an active circulating flow system. This dynamic approach enhances diffusion and contact between reactants, producing uniform particles while maintaining relative structural simplicity
Solution Approach 2:
The patent utilizes hydraulic flow patterns by creating vortex circulation through the rotating blade. The liquid flow itself becomes the mixing mechanism, using fluid dynamics to achieve uniform particle formation without complex mechanical stirring systems
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method produces particles with uniform sizes and shapes at a lower power cost, achieving high reaction rates and efficient particle formation with a sharp size distribution using a downsized flow-assisting blade.
Implementation Method 1
a liquid is fed from one end (a first end) portion of a reactor having a volume and, for example, a circular-shaped or elliptical-shaped inner circumference such that the liquid flows along the inner peripheral surface of the reactor. This inflow of the liquid generates a vortex flow toward the other end (the second end) portion in the reactor.
Implementation Method 2
a flow-assisting blade for the liquid is provided to be rotatable around the central axis line, and the blade is rotated to increase the vortex flow velocity
Implementation Method 3
Injection of the materials to be contacted into the vortex flow generated in the reactor brings the materials to be contacted into contact with the vortex flow (high turbulent energy field) to generate particles by the contact.
Data Source
AI summary
A method of producing particles by bringing plural dissimilar materials A and B into contact with each other includes feeding a liquid into a reactor from a first end portion of the reactor such that the liquid flows along the inner peripheral surface of the reactor and generating a vortex flow toward a second end portion in the reactor by the feed of the liquid; disposing a flow-assisting blade capable of rotating around the central axis line in the reactor and rotating the flow-assisting blade; and injecting materials to be contacted A and B into the reactor, discharging a contacted liquid from the second end portion of the reactor, and generating the particles in the contacted liquid.