【Exhibition Highlights】SMM Lead & Zinc Conference | Longi Optical Sorting Technology Leads a New Direction in Lead-Zinc Ore Processing
At this exhibition, Longi Optical shared practical cases of the innovative application of the LPPC and LPNC intelligent sorting machines in lead‑zinc ore processing. Through dual‑machine combination, all‑dry processing flowsheet and intelligent recognition technology, Longi delivers efficient and eco‑friendly overall solutions for complex and refractory ores.
Part One- Debut at the Exhibition
1. LPPC Fluorescence Intelligent Sorting Machine
The LPPC adopts X‑ray intelligent recognition technology to accurately identify internal elemental differences in ores. It is suitable for pre‑sorting and waste rejection of large‑size ores. Featuring high processing capacity and high sorting accuracy, the machine effectively reduces the grinding and beneficiation load in downstream processes, realizing early waste rejection, cost reduction and efficiency improvement.
2. LPNC Imaging Intelligent Sorting Machine
Based on X‑ray recognition, the LPNC integrates high‑definition image recognition and deep learning algorithms to achieve precise sorting of complex minerals. It applies to pre‑sorting and waste rejection of medium and fine particle ores, and can be flexibly combined with LPPC to cover sorting requirements across different particle sizes.
3. Dual‑machine combination: full particle size coverage
The combined processing flow of LPPC and LPNC enables effective sorting for ores ranging from 15 mm to 150 mm across the full particle size range.By operating in tandem and giving full play to their respective technical advantages, the two models make low‑grade oxidized lead‑zinc ores — once uneconomical to exploit — commercially viable again, achieving a significant improvement in resource utilization rate.
4. All-dry Processing Technology, Eco-friendly & Green
The entire process adopts full dry sorting and waste rejection technology. It requires no water throughout operation, completely eliminating the reliance on water resources in traditional wet beneficiation. It also removes the environmental pressure and safety risks caused by tailings pond construction and maintenance. This technical solution is especially suitable for mines in water-scarce areas and projects under strict environmental protection regulations.
5. In-depth Integration of Intelligent Technologies
The equipment integrates cutting-edge technologies such as multi-dimensional detection and analysis, big data image synthesis algorithms, and machine learning. With continuous self-learning and model iteration, its recognition accuracy remains steadily above 98%. The whole processing line is equipped with an intelligent operation & maintenance system, enabling self-diagnosis of equipment status, automatic adjustment of process parameters, and active fault early warning push.
Part Two- Application Data Verification
Taking a large-scale oxidized lead-zinc mine as a practical application case: after adopting the combined sorting of LPPC and LPNC, the comprehensive concentrate gradehas been increased to over 15%, while the tailings grade is controlled below 2%. Both economic and environmental benefits are remarkable.
Part Three- Highlights at the Exhibition
Frequent in-depth technical discussions and business negotiations have continuously expanded Longi Optical's industry network in mineral processing. This exhibition not only won wide recognition from the industry, but also further strengthened its confidence in empowering the green transformation of mines through technological innovation.
LEAD&ZINC CONFERECNCE
The SMM Lead & Zinc Conference is one of the most influential annual events in the lead-zinc industry. Centering on the theme "Chain Evolution · Value Aggregation · Melting Momentum", this year's conference gathered over 3,000 industry elites and more than 1,000 upstream and downstream enterprises to jointly discuss industrial transformation and green upgrading under the 15th Five-Year Plan.
