Donar DE-XRT Sorting System

Powered by Dual-Energy X-ray Transmission (DE-XRT) and AI deep learning algorithms, Lauffer's advanced Donar DE-XRT Sorting System emits two distinct X-ray energy levels to analyze the unique atomic density of each particle, enabling the precise identification and separation of complex materials based on their true internal composition.

Sorting Principle of Donar DE-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-energy 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.

Technical Features

● Superior Dual-Energy X-ray Transmission

Dual-Energy XRT ensures aluminum purity by eliminating heavy metals via atomic density analysis, and accurately classifies cast and wrought alloys by identifying their distinct micro-structures and compositions 

● 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 2800mm (1200/1800/2800) provides processors more flexibility, ideal for aluminum remelters, auto dismantlers, aerospace aluminum recyclers and packaging material recyclers

Typical Application Scenarios

✦ Precise Impurity Detection in Aluminum

✩ 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

Specifications