Multi-Zone TLF Material Sorting for High-Throughput Fractionation
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Solution Overview
Problem
Current textile waste sorting arrangements face limitations in overall throughput, particularly when sorting into multiple fractions, and lack modularity and scalability, which is exacerbated by the presence of leather and footwear materials in textile waste.
Innovation Solution
A two-step sorting process involving a primary classification and sorting arrangement (PCS) followed by an auxiliary classification and sorting arrangement (ACS) allows for high throughput and modular sorting of textile, leather, and footwear feed materials into multiple fractions, utilizing sensor data and multiple sorting zones to optimize throughput and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If textile waste is sorted into multiple fractions using traditional arrangements, then sorting precision is improved, but productivity decreases significantly
Solution Approach 1:
The sorting system is divided into multiple independent sorting zones (first sorting zone, second sorting zone, third sorting zone, etc.), each capable of sorting into different fractions simultaneously. This segmentation allows the system to achieve multi-fraction sorting precision while maintaining high throughput by processing different material types in parallel across zones rather than sequentially
Solution Approach 2:
The patent transitions from traditional single-line sequential sorting to a multi-zone parallel sorting architecture. Multiple sorting operations occur simultaneously across different spatial zones, effectively adding a dimensional aspect to the sorting process that enables both high precision and high productivity
2Adaptability or versatility
If traditional sorting arrangements are used for textile waste containing leather and footwear, then device complexity is reduced, but adaptability decreases
Solution Approach 1:
Each sorting zone is designed with universal capability to handle multiple material types (textile, leather, footwear) using the same sensor and actuator components. The sorting zones can be configured to sort different fractions based on material characteristics, making the system adaptable to various material compositions without requiring fundamentally different device architectures for each material type
Solution Approach 2:
The sorting arrangement incorporates adjustable parameters including sensor sensitivity thresholds, actuator timing, and zone configuration that can be dynamically optimized for different material batches. This dynamic adjustability enables the system to adapt to leather, footwear, and textile materials with varying properties while maintaining a consistent underlying device structure
3Productivity
If high throughput sorting is implemented, then productivity is improved, but sorting precision deteriorates
Solution Approach 1:
By dividing the sorting system into multiple parallel zones, each zone processes a portion of the material stream at high speed while maintaining accurate sorting. The segmentation distributes the processing load across zones, preventing any single zone from becoming a bottleneck that would compromise precision due to excessive speed
Solution Approach 2:
Sensor arrangements in each zone perform preliminary detection and classification of materials before they reach the sorting point. This preliminary action allows the control system to prepare sorting commands in advance, ensuring precise sorting decisions are made with adequate lead time even at high throughput speeds
Data Source
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AI summary
The present disclosure relates to an arrangement (1) for sorting a material batch including textiles, leather, and/or footwear feed material, TLF-feed material. An arrangement of the present disclosure comprises a first primary classification and sorting, PCS, arrangement (100, 100-1) configured to classify TLF-feed material and actively sort classified TLF-feed material one or more primary active sorting output stream (PASOS-1, PASOS-1'), and pass on a remainder of the first primary input material batch stream (PIMBS-1) as a first primary passive sorting output stream (PPSOS-1); the arrangement further comprising a first auxiliary classification and sorting, ACS, arrangement (200, 200-1) configured to receive as an input stream either the first primary active sorting output stream (PASOS-1, PASOS-1') or primary passive sorting output stream (PPSOS-1) and to classify TLF-feed material and actively sort classified TLF-feed material into at least N1 fractions, wherein N1 is at least 3. A method of sorting a material batch including textiles and more generally TLF-feed material is also disclosed.