This case study highlights a successful ammonium chloride conveying project implemented by Shandong Headpowder Engineering Co., Ltd. (headpowder) for a chemical fertilizer manufacturer located in Yichang, Hubei Province. The project involved the design, supply, and commissioning of a complete positive pressure pneumatic conveying system specifically engineered for ammonium chloride, a highly hygroscopic and corrosive bulk solid material widely used as a raw material in fertilizer production. The client required a reliable, dust-free, and continuous conveying solution to transport ammonium chloride from storage silos to mixing and granulation units, replacing an outdated mechanical conveyor that suffered from frequent blockages, material degradation, and high maintenance costs. Shandong Headpowder Engineering Co., Ltd. was selected as the turnkey provider due to its proven expertise in handling challenging chemical powders and its comprehensive track record in the fertilizer industry.
Ammonium chloride is a fine, crystalline powder with a strong tendency to absorb moisture from the air, leading to caking, bridging, and sticking in conventional conveying equipment. The material is also mildly corrosive, requiring careful selection of contact materials and surface treatments. The existing mechanical system at the Yichang site experienced frequent downtime, product loss, and safety hazards due to dust emissions. The client needed a system capable of transporting ammonium chloride at a controlled rate over a distance of approximately 80 meters, with multiple discharge points, while maintaining product integrity and minimizing environmental impact. Shandong Headpowder Engineering Co., Ltd. proposed a positive pressure dilute-phase pneumatic conveying system, which uses compressed air to propel the powder through a closed pipeline. This approach eliminates the risk of contamination, reduces dust leakage, and allows for flexible routing around existing equipment. The design also incorporated a special dehumidification air pretreatment unit to prevent moisture absorption during conveying, a critical feature for ammonium chloride handling.
The positive pressure pneumatic conveying system for ammonium chloride was engineered with a focus on reliability, efficiency, and ease of maintenance. The core components included a rotary airlock feeder, a positive displacement blower, a dedicated air drying and filtration skid, a conveying pipeline made of wear-resistant stainless steel, and a series of cyclones and bag filters at the receiving end. The rotary airlock was equipped with a variable-speed drive to precisely control the feed rate, ensuring consistent material flow without surging. The pipeline was designed with a minimum number of bends and a smooth interior surface to reduce friction and prevent material buildup. Special attention was given to the selection of gaskets and seals, using materials compatible with the mildly corrosive nature of ammonium chloride. The control system, based on a programmable logic controller (PLC), provided real-time monitoring of air pressure, flow rate, and material level, with automatic shutdown and alarm functions in case of abnormal conditions. This allowed the client to operate the system with minimal manual intervention, reducing labor costs and improving overall safety.
After commissioning, the positive pressure pneumatic conveying system demonstrated outstanding performance in transporting ammonium chloride. The system achieved a conveying capacity of 12 tons per hour, meeting the client's production requirements with a margin of 15%. The moisture content of the conveyed material remained within the specified range, thanks to the integrated air drying system. Dust emissions were virtually eliminated, resulting in a cleaner working environment and compliance with local environmental regulations. The client reported a significant reduction in maintenance downtime compared to the previous mechanical conveyor, with the new system requiring only routine inspections and periodic filter replacements. The energy consumption was also optimized through the use of a variable-frequency drive on the blower, which adjusted the air supply according to the actual material flow. Overall, the project contributed to a 20% increase in the client's overall equipment effectiveness (OEE) for the fertilizer production line. Shandong Headpowder Engineering Co., Ltd. provided comprehensive on-site training for the client's operators and maintenance staff, ensuring smooth technology transfer and long-term operational reliability.
Shandong Headpowder Engineering Co., Ltd. (headpowder) is a leading provider of pneumatic conveying solutions for the chemical, fertilizer, and food industries. With a strong focus on innovation and customer satisfaction, the company has completed numerous successful projects involving challenging materials such as ammonium chloride, sodium bicarbonate, and various fertilizer raw materials. The company's engineering team has extensive experience in designing positive pressure systems that handle hygroscopic, corrosive, and abrasive powders with high efficiency. Each system is custom-tailored to the specific properties of the material and the layout of the client's facility. The after-sales service includes technical support, spare parts supply, and remote diagnostics. For inquiries regarding ammonium chloride conveying projects or other chemical powder handling needs, you may contact Manager Zhang, the head of the project department, via WeChat: 15662777102. Shandong Headpowder Engineering Co., Ltd. is committed to delivering reliable, cost-effective, and environmentally friendly solutions for your bulk material handling challenges.
For more information about this ammonium chloride positive pressure pneumatic conveying case study or to discuss your own project requirements, please reach out to Manager Zhang. You can connect directly via WeChat at 15662777102. The company is based in Shandong, China, and serves clients worldwide with turnkey engineering services. Shandong Headpowder Engineering Co., Ltd. looks forward to assisting you with your next chemical powder conveying project.
Shandong Headpowder Engineering Co., Ltd.
156-6277-7102（Zhang manager） 
0531-83386006 
Jinan City, Shandong, China Province 
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