Mixing Impeller Cavity Structure for Higher Pulping Efficiency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing pulping devices suffer from low mixing efficiency due to a low interface and short contact time between solid and liquid, resulting in a low mixing degree.
Innovation Solution
A mixing impeller with a cavity and overflow holes on its side wall, inclined to enhance the mixing interface and improve mixing efficiency by increasing contact area and contact time, utilizing centrifugal force to disperse liquid and solid materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If solid and liquid are mixed in an existing pulping device structure, then the mixing process can be performed, but the mixing degree and mixing efficiency are low due to low interface and short contact time
Solution Approach 1:
The impeller body introduces a vertical dimension to the mixing interface by creating a cavity that extends from the bottom end to the top end of the impeller body. This vertical cavity structure transforms the traditional horizontal mixing interface into a three-dimensional space, allowing liquid to rise through the cavity and overflow at the top, thereby creating a tall mixing interface that significantly increases both contact area and contact time between solid and liquid materials.
Solution Approach 2:
The cavity acts as an intermediary structure that facilitates extended interaction between solid and liquid. By providing a vertical passage through the impeller body, the cavity mediates the mixing process, allowing liquid to travel upward through the entire height of the impeller and overflow at the top, thereby creating prolonged contact opportunities with solid materials that would not exist in conventional mixing structures.
2Productivity
If solid and liquid are mixed in an existing pulping device structure, then the mixing process can be performed, but the contact area between solid and liquid is small resulting in low mixing degree
Solution Approach 1:
The cavity extending vertically through the impeller body adds a height dimension to the mixing interface. This transforms the traditional two-dimensional surface contact into a three-dimensional volumetric interaction space, where liquid flows upward through the cavity and overflows at the top, creating a tall interface that dramatically increases the effective mixing area between solid and liquid phases.
Solution Approach 2:
The overflow hole design creates dynamic liquid flow patterns where liquid continuously rises through the cavity and spills over at the top. This dynamic movement of liquid through the vertical cavity ensures constant renewal of the mixing interface and maintains high contact area between liquid and solid materials throughout the mixing process, rather than relying on static contact surfaces.
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 impeller design enhances mixing efficiency by increasing the mixing interface height, improving contact area and contact time, reducing caking, and enhancing the overall pulping efficiency.
Implementation Method 1
utilizing centrifugal force to disperse liquid and solid materials
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
An mixing impeller (2) comprising an impeller body (21), wherein the impeller body (21) defines, at a bottom end of the impeller body (21), a cavity (214) extending to a top end of the of the impeller body (21), and the impeller body (21) defines an overflow hole (213) in communication with the cavity (214) at a side wall of the impeller body (21). Furthermore a pulping device therewith.