Attrition Mill Propeller Shaft Assembly for Particle Contamination Removal
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Solution Overview
Problem
Attrition systems in aggregate processing face challenges in effectively removing contaminants and enhancing particle appearance to meet product specifications, as existing methods may not adequately address particle-on-particle forces and contamination removal.
Innovation Solution
The attrition mill system, comprising multiple attrition cells with propeller shaft assemblies and baffle configurations, induces repetitive churning motions to liberate contaminants through abrasion and friction, optimizing particle processing and separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If attrition systems are used to remove contaminants and enhance particle appearance, then product quality is improved, but the systems may not adequately induce particle-on-particle forces for effective contamination removal
Solution Approach 1:
The system employs dynamically adjustable propeller shaft assemblies that can vary rotation speed and direction to optimize particle-on-particle forces. The adjustable nature allows the system to adapt processing conditions to maximize both contamination removal effectiveness and particle appearance quality simultaneously
Solution Approach 2:
The attrition system changes key parameters including rotation speed, propeller configuration, and slurry flow rate to induce optimal particle-on-particle forces. By adjusting these parameters, the system resolves the contradiction between effective contamination removal and particle appearance enhancement
2Reliability
If multiple attrition cells are used to enhance processing effectiveness, then contamination removal is improved, but system complexity increases
Solution Approach 1:
The system divides the attrition process into multiple separate cells, each with its own propeller shaft assembly. This segmentation allows independent optimization of each cell while maintaining overall system effectiveness for contamination removal, managing complexity through modular design
Solution Approach 2:
Each attrition cell is designed with universal components including standardized propeller shaft assemblies and interchangeable propellers. This multi-functionality allows the same basic structure to handle different processing requirements across multiple cells, reducing overall system complexity while maintaining effectiveness
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 system effectively cleans and separates particles, improving product quality by removing contaminants and enhancing particle sphericity, thereby meeting product specifications.
Implementation Method 1
induce repetitive churning motions to liberate contaminants through abrasion and friction
Implementation Method 2
induce repetitive churning motions to liberate contaminants through abrasion and friction
Implementation Method 3
baffle configurations, induces repetitive churning motions
Data Source
AI summary
Attrition mills and propeller shaft assemblies therefor are described having features for enhanced installation and maintenance. Some embodiments include propellers having enhanced material processing characteristics.