Recently, the customized high-efficiency, energy-saving, and low-magnetic contamination continuous disc dryer independently developed by our company has completed manufacturing and been officially shipped to the site of Zijin Mining's key high-altitude salt lake lithium extraction project in Ali, Tibet, located at an altitude of 4,600 meters. This delivery not only marks a crucial milestone in the in-depth collaboration between our company and Zijin Mining, a leading enterprise in the industry, in the field of high-altitude mineral resource development but also sets a new industry benchmark for high-altitude salt lake lithium extraction drying equipment with the cutting-edge technical indicator of "5ppb low magnetic contamination control". It provides a customized solution for efficient lithium resource purification under extreme environments.

As a world-class typical high-altitude salt lake lithium extraction production area, the Ali region in Tibet has a project site at an altitude of 4,600 meters, facing multiple severe challenges such as low oxygen, large temperature differences, and complex geological conditions. These pose extremely high requirements on the weather resistance, stability, and process precision of the equipment. More importantly, the presence of magnetic contamination during salt lake lithium extraction directly affects the purity of lithium salt products, thereby restricting their adaptability to high-end application scenarios such as downstream new energy batteries. As an industry benchmark, Zijin Mining has set strict standards for magnetic contamination control that are far higher than the conventional industry level.

To accurately meet the project requirements, our company established a special technical research team, which collaborated closely with Zijin Mining's technical department. Focusing on the two core pain points of high-altitude working condition adaptability and low magnetic control, after numerous experimental calculations and process optimizations, we finally developed this highly targeted customized drying equipment. The equipment has achieved dual core technological breakthroughs:

Firstly, the ultimate low-magnetic control technology leads the world. Through nearly stringent production requirements and continuous technological upgrades, the equipment achieves an industry-leading level of magnetic contamination increment ≤ 5ppb. It guarantees the high purity and stability of lithium salt products from the source, perfectly meeting Zijin Mining's quality requirements for high-end lithium resource development. Equipped with an independently operating PLC system, the equipment can capture data in real time remotely, further enhancing its advanced nature.

Secondly, a technological breakthrough in adaptability to extreme high-altitude environments. Targeting the special working conditions of low oxygen and large temperature differences (-30℃ to 40℃) at 4,600 meters above sea level, the equipment innovatively integrates an adaptive environmental control system. It dynamically adjusts operating parameters by real-time sensing changes in air pressure and temperature, ensuring the stability of thermal efficiency and the uniformity of material processing during the drying process. Meanwhile, the adoption of modular design and high-strength weather-resistant materials solves the problems of transportation and installation difficulties in high-altitude areas and equipment wear during long-term operation, significantly reducing the project's operation and maintenance costs.

In addition, the equipment deeply integrates the concept of green energy conservation. On the basis of optimizing the drying process curve, it integrates a waste heat recovery system, perfectly aligning with Zijin Mining's development strategy of "green mine" construction and realizing the coordinated advancement of efficient production and ecological protection.

A relevant person in charge of Zijin Mining's project stated: "Low magnetic contamination control and equipment stability in high-altitude salt lake lithium extraction are universally recognized technical challenges in the industry. After comparing multiple schemes, we ultimately chose to cooperate with a partner with core technical strength again. The 5ppb low magnetic contamination control capability of this customized drying equipment provides key support for us to ensure the high-end quality of lithium salt products, and its excellent high-altitude adaptability will also effectively improve the overall operational efficiency of the project."

Our company's technical personnel said: This successful cooperation with Zijin Mining is a practical verification of our core technologies in the field of high-altitude mineral resource development and a full demonstration of our customized service capabilities. In the future, our company will continue to deepen technological innovation in mining equipment, focus on core pain points in new energy fields such as salt lake lithium extraction, ore lithium extraction, and battery recycling lithium extraction, and continuously iterate key technologies such as low-magnetic control and extreme environment adaptability. With more professional products and higher-quality services, we will help promote the efficient development and green transformation of global mineral resources and create value hand in hand with more leading enterprises in the industry.

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