Donar DE-XRT Sorting System Pro

Traditional Dual-Energy XRT technology excels at separating light and heavy metals by analyzing chemical composition and density based on Dual-Energy Ratio (DER) differences. However, it faces limitations when dealing with materials with similar densities.

Lauffer's Donar DE-XRT Sorting System Pro integrates high-resolution RGB cameras with Dual-Energy XRT, breaking through this bottleneck. While retaining the core advantages of DE-XRT, the added RGB system enables precise identification based on surface color differences. This powerful combination successfully solves complex sorting challenges that traditional Dual-Energy XRT cannot handle, delivering smarter, more accurate, and highly efficient sorting results.

Sorting Principle of Traditional Dual-Energy XRT Sorting System

Purifying Aluminum from Zorba (Heavy Metal Impurity Removal)

The separation of aluminum from heavy metal impurities in Zorba is fundamentally based on the significant differences in Effective Atomic Number and Material Density.

When dual-energy X-rays penetrate the material stream, the system measures the attenuation differences between high- and low-energy X-rays. Aluminum is a light metal with a low atomic number and low density, exhibiting weak X-ray attenuation. In contrast, heavy metal impurities such as copper, brass, zinc, lead, and stainless steel possess significantly higher atomic numbers and densities, resulting in strong X-ray absorption. By calculating the Dual-Energy Ratio (DER), the system accurately determines the intrinsic Effective Atomic Number of each particle, effectively eliminating the interference of material thickness. This allows the intelligent control system to precisely identify and trigger the pneumatic ejection of heavy metal contaminants, leaving behind purified aluminum.

Separating Cast Aluminum from Wrought Aluminum

The separation between cast aluminum and wrought aluminum is primarily based on differences in Alloy Composition and Internal Micro-structure, which lead to variations in their overall density and X-ray attenuation characteristics.

Cast aluminum alloys typically contain higher concentrations of alloying elements, particularly silicon (Si), and may include porosity or internal voids resulting from the casting process. These structural and compositional differences alter the material's effective density and its attenuation rate for X-rays compared to wrought aluminum, which is generally denser and has a more uniform, pure micro-structure. DE-XRT technology captures these subtle differences in X-ray transmission attenuation between the two types of aluminum. By analyzing these specific attenuation signatures, the system can accurately classify and separate cast aluminum from wrought aluminum, maximizing the value of the recycled aluminum stream.

Sorting Principle of Donar DE-XRT Sorting System Pro

This fusion sorting system is based on a multi-modal perception and data-level fusion mechanism. 

The Physical Detection Level

Dual-Energy XRT (DE-XRT) extracts the internal Effective Atomic Number and relative density by measuring the attenuation differences between high- and low-energy X-rays, enabling the transparent identification of internal material composition. Concurrently, the RGB camera system captures surface visual information, including spectral reflection characteristics, color, and texture. 

The Data Processing Level

AI algorithms perform millisecond-level spatial registration and feature-level fusion between X-ray gray-scale images and RGB high-resolution images, constructing a multi-dimensional feature matrix of "internal composition + external appearance" to trigger the execution mechanism for precise sorting.

Technical Features

● Exceptional Hybrid of DE-XRT & High-Resolution RGB Imaging

Fusion Sorting System enables density and color analysis to solve complex sorting challenges beyond traditional DE-XRT 

● Proprietary AI Deep Learning Algorithms

Innovative simulation of manual picking operation by teaching and training the intelligent sorting system all the standards and features of identification and sorting

● Reliable High-Performance Air Ejector System

Powerful high-speed air ejectors designed and produced in-house ensure accurate rejection and reliable performance at high-capacity sorting

● Flexible Modular Design

Modular design of belt width from 1200 to 1800mm (1200/1800) provides processors more flexibility, ideal for aluminum remelters, auto dismantlers, aerospace aluminum recyclers, packaging material recyclers and IBA recyclers

Typical Applications

✦ Recovery of Aluminum Scrap

✩ Building Window/Door Recycling

✩ Beverage Can Recycling

✩ E-Waste Aluminum Recycling

✦ Separation of Cast Aluminum and Wrought Aluminum

✩ Auto Shredder Residue Sorting

✩ Industrial Machinery Scrap

✩ Aerospace Aluminum recycling

✩ Consumer Electronics Housing

✦ Recovery of Stainless Steel

✩ IBA (Incinerator Bottom Ash) Recycling

✩ ASR (Automotive Shredder Residue) Recycling

Specifications