This case study presents a successful implementation of a wood powder dilute phase pneumatic conveying system tailored for a leading plywood manufacturing facility located in Huzhou, Zhejiang Province. The client, a well-established panel producer, required an efficient and reliable solution to handle wood powder generated during sanding, cutting, and polishing processes. The project was designed and executed by Shandong Headpowder Engineering Co., Ltd. (branded as headpowder), a company based in Shandong, China, with extensive expertise in powder handling and dust collection systems. The primary objective was to replace outdated manual handling methods with a fully automated, closed-loop conveying system that minimizes dust emission, reduces labor costs, and improves overall production safety.
The plywood factory faced several operational bottlenecks. The wood powder, being light, fibrous, and prone to static electricity, frequently clogged traditional mechanical conveyors and created significant dust pollution inside the workshop. Existing equipment required frequent maintenance, and the manual bagging process exposed workers to respiratory hazards. The client specifically needed a wood powder dilute phase conveying case that could transport material over a distance of approximately 80 meters with multiple discharge points, while maintaining a consistent flow rate of 2–3 tons per hour. Additionally, the system had to integrate seamlessly with the existing dust removal and conveying for panel factory infrastructure, including cyclone separators and baghouse filters already in place. The solution also needed to be energy-efficient, easy to operate, and compliant with local environmental regulations regarding fugitive dust emissions.
Based on the client's material characteristics and site layout, headpowder engineers proposed a customized dilute phase powder conveying system. Unlike dense phase systems that use high pressure and low velocity, dilute phase conveying employs a high air-to-material ratio, suspending wood powder particles in a fast-moving airstream. This approach is ideal for light, free-flowing powders and offers several advantages: lower initial capital cost, simpler piping layout, and easier maintenance. The system comprised a rotary airlock feeder, a positive displacement blower, a series of wear-resistant piping bends, and a multi-port diverter valve to direct material to different silos or packaging stations. The conveying line was designed with a 45-degree inclined section to accommodate the factory's ceiling height constraints, and all joints were sealed with pneumatic gaskets to prevent leakage. The control system, based on a PLC with touchscreen HMI, allowed operators to adjust conveying speed, monitor pressure drop, and set automatic cleaning cycles. The entire wood powder dilute phase conveying case was fully tested at headpowder's workshop in Shandong before shipment, ensuring a smooth on-site installation within two weeks.
The core equipment included a heavy-duty rotary airlock with a specially designed rotor to prevent bridging of fibrous wood powder. The positive displacement blower, rated at 45 kW, provided a consistent air volume of 120 m³/min at 0.6 bar pressure. To minimize wear, all elbows were fitted with replaceable ceramic liners, extending service life by three times compared to standard carbon steel. The diverter valve, with a stainless steel sliding gate, ensured zero cross-contamination between different material grades. For the dust removal and conveying for panel factory integration, the system was connected to an existing baghouse filter via a dedicated duct, capturing any residual fines from the conveying air before discharge. An optional metal detector and magnetic separator were installed at the feed point to prevent tramp metal from damaging downstream equipment. The entire system was designed to operate at a noise level below 85 dB(A) with the addition of silencers, meeting the factory's occupational health standards.
The installation team from Shandong Headpowder Engineering Co., Ltd. worked closely with the client's maintenance staff to minimize production downtime. The project was completed in three phases: foundation preparation, equipment mounting, and piping connection. During commissioning, the system achieved a stable conveying rate of 2.8 tons per hour, with a power consumption of only 1.2 kWh per ton of material – a 40% reduction compared to the previous mechanical conveyor. The dust emission level at the discharge points was measured at less than 2 mg/m³, far below the local regulatory limit of 10 mg/m³. The client reported a 60% decrease in manual labor for powder handling, and the number of respiratory complaints among workers dropped significantly. After six months of operation, the system required only routine lubrication and filter replacement, demonstrating the reliability of the dilute phase powder conveying system design. The project was recognized as a model for sustainable manufacturing in the region's wood panel industry.
With over 15 years of experience in pneumatic conveying and dust collection, headpowder (full name: Shandong Headpowder Engineering Co., Ltd.) has delivered hundreds of successful projects across China and Southeast Asia. The company's engineering team specializes in customizing solutions for challenging materials like wood powder, biomass, chemical powders, and minerals. Every wood powder dilute phase conveying case is supported by a comprehensive technical service, including material testing, CFD simulation, on-site installation supervision, and operator training. The company's factory in Shandong, China is equipped with modern testing facilities, allowing clients to visually verify the conveying performance before shipment. For inquiries or to discuss your specific project requirements, please contact the sales manager Mr. Zhang (Zhang Jingli) directly via WeChat: 15662777102. He and his team are ready to provide a free feasibility study and a detailed quotation customized to your site conditions.
If you are looking for a proven, cost-effective dilute phase powder conveying system for your wood panel factory, chemical plant, or any other industrial application, do not hesitate to reach out. Shandong Headpowder Engineering Co., Ltd. is committed to delivering turnkey solutions that improve your production efficiency, reduce environmental footprint, and enhance workplace safety. The project manager, Mr. Zhang, can be reached via WeChat: 15662777102 for immediate technical support and project scheduling. Please note that a team of engineers will be dispatched to your site for a free site survey if you are located within mainland China. For international clients, remote consultation and virtual commissioning are also available. Trust headpowder to engineer the powder handling solution that meets your exact needs.
Shandong Headpowder Engineering Co., Ltd.
156-6277-7102（Zhang manager） 
0531-83386006 
Jinan City, Shandong, China Province 
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