Jiangxi Nanchang Lithium Powder Explosion-Proof Conveying System

In the rapidly evolving battery materials industry, safe handling of lithium powder during production and transportation has become a critical concern. Headpowder has developed a specialized explosion-proof conveying system tailored for lithium powder processing facilities, addressing the unique safety challenges posed by this highly reactive material.

Case Overview

A lithium powder production plant in Jiangxi Nanchang faced increasing pressure to upgrade its material handling infrastructure. The facility required a reliable solution to transport lithium powder between processing stages while eliminating any risk of dust explosion. The existing system showed limitations in both safety performance and operational efficiency.

Customer Pain Points

Lithium powder is classified as a combustible dust with a low minimum ignition energy. The customer identified several key issues:

• High explosion risk due to static electricity buildup and friction during pneumatic conveying.
• Frequent dust leakage from conventional seals, leading to fine powder accumulation in the workshop environment.
• Inability to maintain consistent material flow under varying humidity and temperature conditions.
• Lack of real-time monitoring for critical parameters such as pressure, oxygen concentration, and dust concentration inside the conveying pipe.
• Compliance challenges with national safety regulations for explosive atmospheres (e.g., GB 15577).

Product Advantages & Solutions

Headpowder engineered a comprehensive explosion-proof conveying system that directly addresses each pain point:

Segregated Inert Gas Protection

The system incorporates a nitrogen purge mechanism that continuously maintains oxygen levels below the limiting oxygen concentration (LOC) for lithium dust. This effectively suppresses any potential ignition source.

Intrinsic Safety Design

All conveying components, including rotary valves, pipes, and filters, are constructed from anti-static materials and fully grounded. Electrostatic discharge (ESD) risks are minimized through controlled bonding and grounding schemes.

Sealed & Leak-Proof Construction

High-precision sealing technology prevents any lithium powder leakage into the surrounding environment. The system operates under slight negative pressure, further reducing fugitive emissions.

Advanced Monitoring & Control

Real-time sensors measure pressure differentials, temperature, oxygen content, and dust concentration. An intelligent control unit automatically adjusts conveying speed, inert gas flow, and activates emergency venting if abnormal conditions are detected.

Compliance & Certification

The entire system meets international explosion protection standards (ATEX/IECEx equivalent) and complies with China's GB 15577 and GB 50058 requirements for dust explosion prevention.

Conclusion

Headpowder's lithium powder explosion-proof conveying system has been successfully deployed at the Jiangxi Nanchang facility, achieving zero safety incidents over 12 months of continuous operation while improving material transfer efficiency by 30%. The solution demonstrates that safety and productivity can be achieved simultaneously through thoughtful engineering design.