I. Breakthrough in Industrial Waste Sorting Technology
Industrial waste is complex in composition and diverse in form, especially metallic materials, which are often tightly mixed with non-metallic materials (plastics, rubber, textiles, wood, etc.).
The core of intelligent sorting equipment lies in utilizing the differences in the physical properties of materials to achieve rapid, non-contact identification and separation.
1. High-Precision Sensor Identification System
Core equipment generally integrates multiple advanced sensing technologies:
Near-Infrared (NIR) Technology: Quickly identifies organic materials such as plastics, rubber, and wood of different materials.
Electromagnetic Induction Technology: Has extremely high detection sensitivity for ferrous (Fe) and non-ferrous (NF) metals, especially weakly magnetic stainless steel.
X-ray Transmission (XRT) Technology: Accurately identifies various non-ferrous metals such as copper, aluminum, zinc, and lead based on differences in material density, and can even distinguish different alloy compositions.
Color Linear Scan Camera and Laser Sensing: Performs high-precision sorting based on color, shape, and surface texture.
These sensors work collaboratively above a high-speed conveyor belt, completing the “identity scan” of each material within milliseconds and transmitting the data to the central control system in real time.
2. High-Speed and Precise Actuating Mechanisms
High-Pressure Air Jet System: Following control system commands, compressed air nozzles are precisely timed to “blow” the target material from the mixed flow into a designated collection trough.
Robotic Arm Sorting System: Suitable for large items or materials requiring gentle handling. Guided by AI vision, it grasps and places the materials.
II. Comprehensive Improvement in Efficiency, Purity, and Benefits
1. Maximizing Economic Benefits:
Increasing the Value of Recyclables: High-purity (typically 95%-99% or higher) metal bales can be sold directly as high-quality raw materials, fetching prices far higher than mixed materials.
Reducing Operating Costs: A single unit can replace dozens of sorting workers, significantly reducing long-term labor costs, management costs, and occupational health risks.
Mining “Urban Mines”: Efficiently extracting high-value metals such as copper and aluminum from auto scrap (ASR), waste electronic equipment (WEEE), and industrial waste, turning waste into treasure.
2. Ensure Stable Production and Equipment Safety:
Prevent Downstream Equipment Damage: Precise removal of metal impurities effectively protects critical downstream equipment such as crushers and grinders, avoiding unexpected downtime and costly repairs due to foreign metal objects.
Improve Overall Production Line Efficiency: Automated and continuous sorting processes stabilize and maximize the capacity of the entire processing line.
3. Meet Compliance and Sustainable Development Requirements:
Support Resource Recycling Goals: Significantly improves the resource recovery rate of industrial waste, helping companies achieve environmental regulations and their own ESG (Environmental, Social, and Governance) goals.
Reduce Landfill and Pollution: Through efficient sorting, significantly reduces the amount of waste ultimately needed for landfill, lowering the environmental burden.
III. Application Scenarios and Equipment Selection
1. Heavy Metal Sorting of Crushed Materials: Suitable for automotive shredder residue, household appliance shredder, etc. Typically uses a combination of bouncing screen + magnetic separator + eddy current separator (ECS) to effectively separate iron, aluminum, copper, and heavy non-metallic materials.
2. Fine-particle metal separation: For fine-particle mixtures after electronic waste is pulverized, high-performance eddy current separators or inductive separators can efficiently recover tiny non-ferrous metal particles.
Mixed industrial waste recycling: For complex industrial mixed waste, artificial intelligence (AI) vision sorting robots or multi-level sensor (NIR+XRT) intelligent sorting machines can simultaneously separate plastics of different materials, various metals, and other recyclables, achieving one-stop recycling.