Nested Cylinder Dispersing Apparatus for Battery Slurry
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Solution Overview
Problem
Existing mixing and dispersing apparatuses require long dispersion times and have low efficiency when handling materials like powders and slurries for batteries, especially for high-viscosity and high-density materials.
Innovation Solution
A mixing and dispersing apparatus with a tank body, stirring part, and a unique dispersing part comprising a first and second cylinder, where the second cylinder rotates within the first, creating a shearing action that accelerates material dispersion by increasing the shearing force and area, and includes shearing teeth and channels to enhance material flow and collision, thereby shortening dispersion time and improving efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If materials are dispersed by stirring in conventional mixing apparatuses, then the materials can be mixed, but the dispersion time is long and dispersion efficiency is low
Solution Approach 1:
The dispersing part uses a dynamic structure where the second cylinder rotates within the first cylinder, creating variable shearing forces throughout the material. This dynamic motion pattern, rather than static stirring, dramatically accelerates dispersion by continuously changing the stress distribution on material particles.
Solution Approach 2:
The invention changes the physical parameters of the dispersing action by creating a rotating cylindrical structure that generates high shearing forces. The rotation speed and the gap between cylinders can be adjusted to optimize shearing intensity, transforming the dispersion process from low-intensity stirring to high-intensity shearing that rapidly breaks up aggregates.
2Productivity
If a simple stirring mechanism is used, then the device structure is simple, but the shearing force and shearing area are insufficient for efficient dispersion
Solution Approach 1:
The dispersing part employs a nested cylindrical structure where the second cylinder is positioned inside the first cylinder. This nested arrangement creates an efficient shearing geometry without requiring excessive space or complex external mechanisms, as the inner cylinder's rotation relative to the outer cylinder generates the necessary shearing action within a compact form factor.
Solution Approach 2:
The invention transitions from conventional one-dimensional stirring motion to two-dimensional shearing action by introducing radial and tangential components through the rotating inner cylinder. This multi-dimensional motion pattern increases the effective shearing area and distributes stress more uniformly throughout the material, enhancing dispersion efficiency.
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 apparatus significantly reduces material dispersion time and enhances dispersion efficiency by applying a large shearing force and increasing the shearing area, effectively mixing and dispersing materials like battery slurry components uniformly.
Implementation Method 1
the second cylinder in the dispersing part can be driven by the driving part to rotate in the first cavity with respect to the first cylinder, and such rotation allows the second cavity to have an internal pressure lower than an external pressure. In this case, the materials in the accommodating cavity will flow into the second cavity
Implementation Method 2
The materials thrown out will be subjected to a large shearing force between the first cylinder and the second cylinder, and the first cylinder and the second cylinder can increase a shearing area of the materials, accelerating the dispersion of the materials
Implementation Method 3
The stirring part can be driven by the driving part to mix the materials in the accommodating cavity by stirring
Data Source
AI summary
A mixing and dispersing apparatus includes a tank body, a stirring part, a dispersing part, and a driving part. The tank body has an accommodating cavity configured to accommodate materials. The stirring part is disposed in the accommodating cavity and configured to mix the materials in the accommodating cavity. The dispersing part is disposed in the accommodating cavity and includes a first cylinder and a second cylinder. The first cylinder has a first cavity in communication with the accommodating cavity, the second cylinder is located in the first cavity, and the second cylinder has a second cavity in communication with the accommodating cavity. The driving part is connected to the stirring part and the dispersing part. The materials mixed in the accommodating cavity flow into the second cavity and flow out after being dispersed in the dispersing part.