The large-scale inflatable mechanical stirring flotation machine with the largest single tank volume in China has been successfully developed.

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"Research on the 160M3 Large-Scale Inflatable Mechanical Agitation Flotation Machine" is a key component of China's national science and technology plan during the "10th Five-Year" period. After years of dedicated effort, the Beijing Mining and Metallurgical Research Institute, in collaboration with Jinchuan Group Co., Ltd., has successfully developed the "160M3 Large Inflatable Mechanical Stirring Flotation Machine" and completed its industrial application testing with great success. Recently, the China Nonferrous Metals Industry Association organized a technical evaluation of this achievement. Following a thorough review of technical documentation, detailed presentations, and in-depth discussions, the expert panel unanimously concluded that the equipment’s overall performance has reached international advanced standards, with several innovative features: 1) The impeller-stator system features a unique design. The impeller uses high-number backward-curved blades, offering a large circulation flow and low-pressure head, ensuring sufficient slurry suspension and even particle distribution. The stator is directly suspended with low damping, providing stable radial flow. 2) The machine incorporates a dual foam tank and dual push-bubble cone structure. The inner foam tank helps to efficiently discharge flotation froth, reducing the conveying distance and increasing the thickness of the froth layer, resulting in greater stability. 3) The pre-distribution directional air distributor is an original design, enabling uniform air dispersion, optimized flow paths for the aerated slurry mixture, and a larger bubble surface area, which significantly enhances flotation efficiency. 4) The machine allows for automatic control of slurry level and aeration, making operation more convenient, stable, and energy-efficient. Additionally, this development has enriched and improved the theory of large flotation machine scaling, laying a solid foundation for future optimization and enhancing equipment reliability. The successful development of this equipment marks a significant milestone, demonstrating that China's research and development capabilities in super-large mineral processing equipment have reached international standards. This advancement greatly enhances China's mining equipment innovation and plays a vital role in modernizing mines, improving resource utilization, and strengthening competitiveness in the global market. Experts recommend accelerating the commercialization of this technology and developing a full series of equipment to meet the diverse needs of Chinese mining operations.

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