Notched Rotating Body for Viscous Fluid Dispersion
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Solution Overview
Problem
Existing methods for treating highly viscous fluids, such as bead mills, often result in contamination, high energy consumption, and inefficient dispersion due to the use of dispersion media or beads, which can lead to the formation of hard agglomerates and require separate media separation.
Innovation Solution
A treatment apparatus with a rotating body having a surface with notches formed by a knurling process, creating an annular fine gap between the vessel and the rotating body, allowing for high shearing stress without slippage and efficient dispersion without the need for dispersion media or beads, by increasing the effective surface area and friction coefficient.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a bead mill using dispersion media or beads is used for dispersion treatment, then dispersion capability is improved, but contamination occurs and energy consumption increases
Solution Approach 1:
The invention extracts and eliminates the dispersion media or beads from the treatment system. By using a rotating body with notches that directly contact the treatment material, the system achieves dispersion without requiring separate dispersion media, thereby preventing contamination while maintaining dispersion capability
Solution Approach 2:
The rotating body with notches performs both the dispersion function and the shearing action simultaneously. The notches themselves create the necessary shearing stress on the treatment material without requiring external dispersion media, making the system self-sufficient and eliminating contamination sources
2Manufacturing precision
If a bead mill using dispersion media or beads is used for dispersion treatment, then dispersion capability is improved, but energy consumption increases
Solution Approach 1:
By removing the dispersion media from the system, the invention eliminates the energy required to move and accelerate these media. The rotating body with notches directly applies shearing stress to the treatment material, reducing energy consumption while maintaining dispersion effectiveness
Solution Approach 2:
The notches on the rotating body generate shearing stress directly on the treatment material without requiring intermediate dispersion media. This direct action reduces energy loss and improves energy efficiency while achieving the desired dispersion quality
3Ease of manufacture
If a smooth surface rotating body is used for treatment, then ease of cleaning is improved, but slippage occurs making dispersion difficult
Solution Approach 1:
The rotating body has a dual-surface design: the outer periphery face has notches for effective treatment, while the inner face remains smooth for easy cleaning. This local differentiation allows each surface to optimize its function - the notched surface provides grip and shearing, while the smooth surface facilitates maintenance
4Manufacturing precision
If dispersion media or beads are used in a bead mill, then dispersion capability is improved, but device complexity increases due to media separation requirements
Solution Approach 1:
The invention extracts the dispersion media from the system entirely. The rotating body with notches performs the dispersion function directly on the treatment material, eliminating the need for media separation apparatus and reducing overall system complexity while maintaining dispersion quality
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
Enables efficient mixing and dispersion of highly viscous fluids at low energy consumption, preventing agglomerate formation and reducing contamination risks, while maintaining effective temperature control and operational efficiency.
Implementation Method 1
the friction coefficient can be increased. Therefore, a high shearing stress can be applied to the treatment materials being under passing between the annular fine gap without slippage
Implementation Method 2
a high shearing stress can be applied to the treatment materials being under passing between the annular fine gap
Implementation Method 3
an annular fine gap is formed between an inner face of the vessel and an outer periphery face of the rotating body for passage of the treatment materials, while being subject to the treatment by the rotating body
Data Source
Figure 1
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AI summary
A treatment apparatus for production of solid/liquid type treatment materials in chemistry, medicines, electronics, ceramics, foods, feed or the like, which conducts a mixing and kneading, kneading or dispersion treatment of a highly viscous paste preliminaxily mixed and kneaded having a viscosity range of 10 to 2,500 dPa · s, without using dispersion media or beads. This treatment apparatus comprises a vessel having a supply port and a discharge port of treatment materials, and a rotating body rotatably disposed in the vessel. An annular fine gap is formed between an inner face of the vessel and an outer periphery face of the rotating body for passage of the treatment materials, while being subject to the treatment by the rotating body. The surface of the rotating body which faces the fine gap is provided with notches formed by a knurling process.