A leading chemical enterprise located in Ningbo, Zhejiang Province recently implemented a state-of-the-art soda ash positive pressure pneumatic conveying system to optimize its bulk material handling operations. This project, designed and commissioned by Shandong Headpowder Engineering Co., Ltd., demonstrates the effectiveness of dense-phase pneumatic transport for fine, abrasive, and hygroscopic powders such as soda ash. The system replaces traditional mechanical conveying methods, offering significant improvements in dust control, energy efficiency, and maintenance convenience. The client required a reliable solution that could handle a throughput of 15 tons per hour over a conveying distance exceeding 200 meters, with multiple discharge points for different production lines. Headpowder’s engineering team conducted a thorough analysis of the material properties, including particle size distribution, bulk density, and flow characteristics, to tailor the system parameters precisely.
The core of this project is the soda ash pneumatic conveying case, which highlights the successful application of a positive pressure dilute-phase or dense-phase system depending on the specific line requirements. Soda ash, being a free-flowing yet slightly abrasive powder, demands careful handling to avoid degradation and dust emissions. Headpowder’s positive pressure pneumatic conveying system employs a rotary airlock feeder at the inlet, a roots blower as the air source, and a series of wear-resistant conveying pipes with optimized bends to minimize pressure drop and material build-up. The system includes a dedicated dehumidification unit to prevent caking caused by moisture absorption, a common challenge in coastal regions like Ningbo. Real-time pressure monitoring and automated flow control ensure consistent conveying velocity, reducing pipe wear and product breakage. This case study has become a benchmark for similar chemical material conveying projects across the region.
The positive pressure powder conveying system utilized in this project offers several distinct advantages over negative pressure or mechanical alternatives. First, the system operates at a positive gauge pressure of 0.5 to 1.5 bar, allowing for longer conveying distances and higher capacities without the need for intermediate boosters. The closed-loop design completely eliminates fugitive dust, meeting stringent environmental regulations in the chemical industry. Second, the system’s low air-to-material ratio (typically 1:5 to 1:10 by volume) reduces energy consumption and product attrition. Third, the modular design enables easy expansion or reconfiguration as production demands change. For the Ningbo plant, the system was designed to handle both soda ash and other bulk chemicals with minimal adjustment, providing flexibility for future product diversification. The use of abrasion-resistant ceramics in critical pipe sections extends service life to over 5 years under continuous operation.
This chemical material conveying engineering project represents Headpowder’s expertise in designing and installing complete turnkey solutions for the chemical sector. The scope included not only the pneumatic conveying pipeline but also upstream silo discharge equipment, downstream storage hoppers, and a centralized control system with PLC and HMI interface. The engineering team conducted computational fluid dynamics (CFD) simulations to optimize the flow pattern and eliminate dead zones. On-site installation was completed within 45 days, with a phased commissioning approach that minimized production downtime. The system has been running continuously for over 18 months with a reliability rate of 99.6%, as recorded in the plant’s maintenance logs. The success of this project has led to follow-up orders for similar systems in other chemical plants across Zhejiang and Jiangsu provinces.
Shandong Headpowder Engineering Co., Ltd., also known as headpowder, is a professional engineering company based in Shandong, China, specializing in the design, manufacture, and installation of pneumatic conveying systems for powders and granular materials. With over 15 years of experience, headpowder has completed more than 500 projects worldwide, covering industries such as chemicals, food processing, pharmaceuticals, and building materials. The company’s core competencies include positive pressure and negative pressure dense-phase conveying, air-assisted gravity conveyors, and dust collection systems. Headpowder owns a 10,000-square-meter manufacturing facility equipped with advanced welding, testing, and assembly lines. All equipment is manufactured in accordance with ISO 9001 quality management standards and CE certification requirements. The company’s commitment to innovation is reflected in its 12 patented technologies for flow control, wear reduction, and energy efficiency.
For detailed information about this soda ash pneumatic conveying project or to discuss your own material handling requirements, please contact the dedicated project manager, Manager Zhang. Manager Zhang has over 10 years of experience in the pneumatic conveying industry and can provide tailored solutions for your specific application. You can reach him directly via WeChat at 15662777102. Headpowder welcomes inquiries from chemical enterprises, engineering firms, and plant operators seeking reliable and efficient powder conveying systems. Whether you need a small-scale pilot system or a large-capacity industrial line, the team at Shandong Headpowder Engineering Co., Ltd. is ready to assist you from initial concept through commissioning and after-sales support. Manager Zhang looks forward to discussing how headpowder’s expertise can benefit your next project.
Shandong Headpowder Engineering Co., Ltd.
156-6277-7102（Zhang manager） 
0531-83386006 
Jinan City, Shandong, China Province 
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