Shandong Headpowder Engineering Co., Ltd. (headpowder) recently completed a highly specialized pneumatic conveying project for a major chemical manufacturer located in Taiyuan, Shanxi Province. The project focused on the safe and efficient transport of sodium hydride using nitrogen as the carrier gas in a closed-loop circulation system. Sodium hydride is classified as a highly reactive chemical material that requires strict inert atmosphere protection throughout the entire handling process. The client required a reliable nitrogen protection conveying system to eliminate any risk of combustion or degradation during transfer. Headpowder's engineering team designed and commissioned a customized nitrogen circulation pneumatic conveying solution that meets the highest safety standards while maintaining optimal throughput.
The client operates a large-scale chemical production facility in Taiyuan, where sodium hydride is used as a key reactant in downstream processes. Traditional mechanical conveying methods posed significant safety hazards due to the material's extreme reactivity with moisture and oxygen. Any exposure to air could lead to violent reactions, fires, or even explosions. Therefore, the entire conveying process must be carried out under a strictly controlled nitrogen atmosphere. The existing system suffered from inconsistent nitrogen purity, high nitrogen consumption, and frequent blockages in the pipeline. The client approached Shandong Headpowder Engineering Co., Ltd. to develop a robust nitrogen protection conveying system that could achieve continuous, stable, and safe material transfer with minimal gas consumption.
Headpowder's engineering team proposed a closed-loop nitrogen circulation pneumatic conveying system specifically designed for handling highly active chemical materials like sodium hydride. The system utilizes high-purity nitrogen as the conveying gas, which is continuously recirculated through a dedicated circuit. A key feature is the integration of an advanced oxygen monitoring and purging unit that ensures the nitrogen concentration remains above 99.9% throughout the conveying cycle. The pneumatic conveying line is constructed from corrosion-resistant stainless steel with smooth internal surfaces to prevent material buildup and minimize pressure drop. Special rotary valves with nitrogen sealing were installed at feed and discharge points to maintain the inert environment. The system also includes a high-efficiency cyclone separator and a bag filter to recover fine particles, ensuring zero material loss and a clean working environment.
The sodium hydride nitrogen conveying system developed by headpowder is specifically optimized for the unique properties of this material. The conveying velocity is carefully controlled to avoid particle attrition while maintaining sufficient momentum to prevent settling. The nitrogen circulation loop is equipped with a dedicated pressure control system that maintains a slight positive pressure to prevent air ingress. For high-activity chemical material handling, the entire system is designed with explosion-proof electrical components and grounding provisions. The nitrogen protection conveying system includes multiple safety interlocks: if the oxygen level in the conveying line exceeds a preset threshold (typically 0.5%), the system automatically shuts down and initiates a nitrogen purge. This ensures that the material never comes into contact with oxygen under any circumstances. The system also features a real-time data logging capability that records nitrogen purity, pressure, temperature, and material flow rate for quality assurance and traceability.
After installation and commissioning, the nitrogen circulation pneumatic conveying system delivered outstanding performance. The conveying capacity reached 5 tons per hour with a nitrogen consumption rate reduced by 40% compared to the client's previous once-through system. The closed-loop design recovers and recycles over 95% of the nitrogen, significantly lowering operating costs. The system has been operating continuously for more than 6 months without any unplanned shutdowns or safety incidents. The client reported that the material degradation rate dropped to near zero, and the consistent inert atmosphere eliminated the risk of fire or explosion. Headpowder's solution also simplified the overall maintenance routine, as the sealed system minimized dust leakage and component wear. The success of this project has led the client to consider expanding the same nitrogen protection conveying system to other reactive materials in their facility.
Shandong Headpowder Engineering Co., Ltd., headquartered in Shandong, China, is a professional engineering company specializing in the design and manufacture of pneumatic conveying systems for challenging materials. The company's core expertise lies in handling high-activity chemical materials, explosive powders, and moisture-sensitive substances under strict inert gas protection. Headpowder's team has extensive experience in nitrogen circulation systems, closed-loop conveying, and custom-engineered solutions for the chemical, pharmaceutical, and fine chemical industries. The company provides complete turnkey services, from feasibility study and process design to equipment fabrication, installation, and commissioning. With a strong focus on safety and reliability, headpowder has successfully delivered numerous projects both domestically and internationally.
For more information about the sodium hydride nitrogen conveying system or other nitrogen protection conveying system solutions, please contact the headpowder project team. The lead engineer, Manager Zhang, is available to discuss your specific requirements and provide a tailored proposal. You can reach Manager Zhang via WeChat at 15662777102. Shandong Headpowder Engineering Co., Ltd. looks forward to assisting you with your high-activity chemical material handling needs.
Choosing headpowder means partnering with a company that understands the unique challenges of conveying highly reactive chemicals. Every nitrogen protection conveying system is designed with multiple layers of safety: redundant oxygen sensors, automatic nitrogen purge, and emergency shutdown protocols. The company's proprietary pipeline design minimizes pressure drop and prevents material segregation, ensuring consistent product quality. Headpowder also offers remote monitoring and maintenance support, allowing clients to track system performance in real time. Whether you need a small pilot-scale system or a large industrial unit, headpowder can customize the solution to fit your exact process parameters. Contact Manager Zhang on WeChat (15662777102) to schedule a technical discussion or request a project reference list.
The Taiyuan chemical project is a prime example of how Shandong Headpowder Engineering Co., Ltd. delivers safe, efficient, and reliable pneumatic conveying systems for the most demanding materials. By combining closed-loop nitrogen circulation with advanced monitoring and control, headpowder successfully enabled the client to handle sodium hydride without any safety or quality compromise. The system's low nitrogen consumption, high uptime, and minimal maintenance requirements demonstrate the company's engineering excellence. For any company seeking a proven nitrogen protection conveying system for high-activity chemical materials, headpowder offers a comprehensive solution backed by years of practical experience. To discuss your project, please contact Manager Zhang via WeChat at 15662777102.
Shandong Headpowder Engineering Co., Ltd.
156-6277-7102（Zhang manager） 
0531-83386006 
Jinan City, Shandong, China Province 
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