Fluidic Separator for Auto Shredder Residue Metal Recovery
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Solution Overview
Problem
Current vehicle recycling processes are limited by the speed and efficiency of material separation, particularly in distinguishing between heavier and lighter materials, which affects productivity and profitability, while also posing environmental concerns due to high manual labor needs and airborne contaminant generation.
Innovation Solution
A fluidic separator system is introduced, utilizing a fluid-filled container with a stirring element to separate materials based on specific gravity, where heavier metals sink and lighter materials float, optimizing the separation process by adjusting fluid flow ratios and rates according to the characteristics of the input material, and integrating with subsequent trommel and eddy current separators for further processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional material separation devices are used, then separation can be achieved, but processing speed is limited and productivity is reduced
Solution Approach 1:
The separation process is divided into multiple sequential stages: fluidic separation for bulk material classification, trommel screening for size-based separation, and eddy current separation for non-ferrous metal extraction. This segmentation allows each device to specialize in specific separation tasks, collectively achieving high processing speeds of 100-150 tons per hour while maintaining effective separation
Solution Approach 2:
The fluidic separator uses hydraulic principles by immersing shredded material in water to exploit density differences. Heavier ferrous and non-ferrous metals sink while lighter contaminants float, enabling rapid bulk separation that significantly increases processing speed compared to conventional mechanical separators
2Ease of operation
If conventional separation processes are used, then material sorting can be performed, but manual labor requirements are high
Solution Approach 1:
The system employs self-service separation mechanisms where materials automatically sort themselves based on physical properties. The fluidic separator automatically divides materials by density, the trommel automatically screens by size through rotation, and the eddy current separator automatically repels non-ferrous metals. This eliminates the need for manual sorting labor while achieving complete automation
Solution Approach 2:
Manual mechanical sorting operations are replaced with automated physical separation mechanisms. The fluidic separator replaces manual picking with density-based hydraulic separation, the trommel replaces manual screening with automated rotational screening, and the eddy current separator replaces manual metal identification with electromagnetic repulsion
3Manufacturing precision
If intensive separation processing is performed, then separation quality can be improved, but environmental impact increases due to airborne contaminants
Solution Approach 1:
The fluidic separator uses water as a immersion medium to suppress airborne dust and contaminants generated during separation. By processing materials underwater, the system maintains high separation quality through density differentiation while simultaneously controlling environmental pollution, preventing metal particles and debris from becoming airborne
Solution Approach 2:
The water medium that could potentially cause contamination is instead used beneficially to suppress harmful airborne particles. The same hydraulic environment that enables precise density-based separation also serves as a dust suppression system, converting a potential environmental hazard into a pollution control mechanism
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 fluidic separator significantly increases processing speed, improves separation quality, reduces environmental impact, and minimizes manual labor requirements, enabling the recycling of up to 100-150 tons of ASR per hour with enhanced product quality and efficient water recycling.
Implementation Method 1
separate materials based on specific gravity, where heavier metals sink and lighter materials float
Implementation Method 2
separate materials based on specific gravity, where heavier metals sink and lighter materials float
Implementation Method 3
integrating with subsequent trommel and eddy current separators for further processing
Data Source
AI summary
Systems and methods for separating materials and recovery of valuable materials such as from end-of-life vehicles and appliances are disclosed. Vehicles are shredded and resulting pieces are dropped into a fluidic separator that separates the shredded vehicle scrap into heavier pieces and lighter pieces. The fluidic separator separates the bulk of the more valuable metals of the non-metals. The fluidic separator, which may be used for separating many kinds of mixtures of pieces of varying specific gravity, comprises a fluid-filled container in which the pieces and the fluid are stirred so that pieces of specific gravity greater than that of the fluid tend to sink and pieces of specific gravity less than that of the fluid tend to float.