Real-time powder x-ray diffraction for automated zinc scrap detection

Overview

The proposed solution leverages real-time powder X-ray diffraction (XRD) technology to enhance the recycling process by accurately distinguishing zinc-coated steel scrap from uncoated steel. By detecting the distinct crystalline phases of zinc and zinc oxide, this technology enables automated sorting of zinc scrap in industrial recycling streams. It eliminates the need for sample preparation, making the process efficient and cost-effective. This innovation is vital for recycling industries aiming to improve sorting accuracy and efficiency.

Technical specifications

• Crystallographic Analysis: Utilizes characteristic diffraction peaks of zinc's hexagonal close-packed (HCP) structure and zinc oxide's wurtzite structure.
• High-Speed Detection: Modern X-ray sources and advanced detectors allow rapid data capture and pattern recognition.
• Non-Contact Analysis: Capable of penetrating surface contamination, identifying multiple crystalline phases simultaneously without direct contact.
• Process Integration: Designed for seamless integration into existing recycling lines, with capabilities for real-time processing and communication with control systems.

Technology readiness level

This technology is at TRL 5, indicating it has been validated in a relevant environment. Current efforts focus on system development, optimization, and integration testing to ensure robustness in real-world recycling conditions. The future phases will further enhance the system's accuracy, speed, and reliability, preparing it for full-scale implementation in industrial settings.