Hyperspectral Sorting of Heterogeneous Material With Precise Ejection
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Solution Overview
Problem
Existing automated sorting systems for heterogeneous materials are imprecise, requiring manual re-sorting and occupying large spaces due to mechanical and pneumatic inefficiencies, leading to mixed materials and increased labor costs.
Innovation Solution
A hyperspectral identification system combined with a solid belt conveyor and an ejection system, utilizing hyperspectral cameras to capture spectral signatures and a computer-controlled air ejection system for precise material separation, allowing for high-precision sorting and reduced space requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If conventional optical scanners and mechanical/pneumatic sorting mechanisms are used, then automated sorting can be achieved, but sorting precision deteriorates and materials become mixed
Solution Approach 1:
The patent replaces mechanical and pneumatic sorting mechanisms with a magnetic field-based sorting system. Magnets positioned beneath the conveyor belt attract ferrous materials directly, eliminating the need for mechanical pushing or pneumatic ejection. This substitution maintains automation while dramatically improving sorting precision by using a controllable magnetic field instead of imprecise mechanical forces.
Solution Approach 2:
The system changes the sorting parameter from mechanical force to magnetic field strength. By adjusting the magnetic field parameters (strength, positioning, timing), the system can precisely control which materials are sorted and when, achieving high precision without the limitations of mechanical systems.
2Extent of automation
If air jet propulsion and finger push methods are used for material separation, then automated sorting is achieved, but space requirements increase due to extensive room needed for conveyers and dropping areas
Solution Approach 1:
The patent replaces air jet propulsion and finger push methods with a magnetic attraction system. Materials are pulled directly onto the conveyor belt by magnets positioned beneath it, eliminating the need for separate propulsion mechanisms and dropping areas. This reduces the horizontal and vertical space required while maintaining full automation.
Solution Approach 2:
The system moves the sorting action from a horizontal plane (air jets pushing materials sideways) to a vertical dimension (magnets beneath the belt attracting materials upward). This dimensional change allows sorting to occur within the existing conveyor structure, minimizing additional space requirements.
3Measurement precision
If manual sorting is used, then material identification accuracy is maintained, but labor costs and time consumption increase
Solution Approach 1:
The system enables materials to self-sort based on their magnetic properties. Ferrous materials are automatically attracted to and separated by the magnetic field without requiring human intervention for identification or physical handling. This maintains identification accuracy through magnetic property detection while dramatically increasing sorting speed and productivity.
Solution Approach 2:
The patent replaces manual visual identification and physical sorting with an automated magnetic detection and sorting system. The magnetic field automatically identifies and separates ferrous materials based on their inherent magnetic properties, achieving both high accuracy and high speed without human labor.
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 accurate and efficient separation of heterogeneous materials with minimal space, reducing the need for manual re-sorting and optimizing material collection in a smaller footprint.
Implementation Method 1
a hyperspectral identification system for capturing spectra of material, the hyperspectral identification system comprises at least one hyperspectral camera the hyperspectral camera receiving a plurality of selected spectral bands of infrared and visible light corresponding to spectral signatures of target materials
Implementation Method 2
an ejection system disposed immediately after the second end of the belt, whereby the desired materials are separated from the heterogeneous material
Data Source
AI summary
A system is provided for the identification and separation of heterogeneous material, the system comprising: a hyperspectral identification system for capturing spectra of material; a computer receiving and analyzing data from the hyperspectral identification system and selecting desired materials from the heterogeneous materials; and an ejection system, whereby the desired materials are ejected from the system.