Composite Particle Production Device with Dispersion Feedback Control
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Solution Overview
Problem
Existing methods for producing composite particles face inefficiencies due to reliance on pH control for surface charge manipulation, limited material selection, and the need for excess polymer electrolyte removal, which complicates the production process and reduces workability and yield.
Innovation Solution
A device that monitors and controls the dispersion state of particles in a liquid using a control agent, optimizing the amount added to achieve the desired surface charge without excess, allowing for continuous production by stopping agent supply when a desired dispersion state is reached, thereby simplifying the process and improving efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If polymer electrolyte is added in excess to control surface charge of particles, then surface charge control is achieved, but removal operation becomes necessary and production efficiency deteriorates
Solution Approach 1:
The patent employs a feedback mechanism by measuring the dispersion state of particles and using this information to control the addition amount of polymer electrolyte. The measurement result is fed back to the control unit, which adjusts the addition amount to achieve desired dispersion state without excessive additive, thereby eliminating the need for removal operations and improving production efficiency.
Solution Approach 2:
The patent changes the measurement parameter from indirect pH measurement to direct dispersion state measurement. By measuring dispersion state directly (through viscosity, light scattering, or electrical conductivity), the system can precisely control polymer electrolyte addition to achieve optimal surface charge control without excess additive, resolving the contradiction between reliability and productivity.
2Reliability
If cleaning operation is repeated to sufficiently remove excess polymer electrolyte, then removal effectiveness is improved, but workability deteriorates
Solution Approach 1:
The patent performs preliminary action by precisely controlling the polymer electrolyte addition amount from the beginning through feedback control. By preventing excess additive formation at the source through real-time dispersion state monitoring, the system eliminates the need for repeated cleaning operations, thereby improving workability while maintaining removal effectiveness.
3Reliability
If centrifugal separation is used to remove excess polymer electrolyte, then removal is achieved, but continuous production becomes difficult
Solution Approach 1:
The patent uses feedback control to prevent excess polymer electrolyte formation in the first place by monitoring dispersion state and adjusting addition amount accordingly. This eliminates the need for centrifugal separation steps that interrupt continuous production, thereby maintaining both removal capability and continuous production capability.
4Reliability
If pH control method is used to control surface polarity of particles, then surface charge control is achieved, but material selection is limited
Solution Approach 1:
The patent changes the control parameter from pH to direct dispersion state measurement. This allows the use of polymer electrolytes with various chemical structures and properties, expanding material selection range while maintaining reliable surface charge control through feedback-based precision addition.
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 device ensures the optimal amount of control agent is used, reducing the need for excess removal and enabling continuous production of composite particles by monitoring viscosity and other dispersion metrics, enhancing workability and production efficiency.
Implementation Method 1
measuring means for measuring a dispersion state of the particles in the liquid
Implementation Method 2
a control agent for controlling a surface charge of the particles contained in the liquid in the reservoir tank is added into the reservoir tank
Implementation Method 3
causing a first group of particles and a second group of particles to stick to each other by electrostatic attraction
Data Source
Figure 1
Figure 2
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AI summary
Provided are a device and a process for producing composite particles capable of adding a control agent for controlling a surface charge of particles such as a polymer electrolyte without being in excess or short and accordingly improving workability and production efficiency. The production device comprises a reservoir tank 1 for holding liquid containing either one of a first group and a second group of particles; dispersion state measuring means 2 for measuring a dispersion state of the particles in the liquid held in the reservoir tank; dispersion state storing means 33 for storing the dispersion state measured by the dispersion state measuring means when a control agent for controlling a surface charge of the particles contained in the liquid in the reservoir tank is added into the reservoir tank; and information outputting means 37 for outputting information indicating that the dispersion state of the particles in the liquid in the reservoir tank is a desired state, based on the dispersion state stored in the dispersion state storing means.