Our Custom Pneumatic Conveying System for Safe, Low-Wear Powder & Granule Transport

Powder and granule handling is a common yet challenging process in many industries. Conventional conveying methods such as bucket elevators and screw conveyors often suffer from material spillage, dust escape, product degradation and heavy component abrasion. Improper system design can also lead to pipeline blockage, material segregation, dust explosion risks and frequent maintenance shutdowns. Our custom pneumatic conveying systems are engineered to move powder and granular materials safely, with minimized wear on both the pipeline and the conveyed product. We tailor every solution according to material properties, throughput requirements and site layout, helping you achieve stable, enclosed and low-loss material transfer.

Material characteristics are the foundation of our system design. Before layout planning, our engineering team collects detailed data including bulk density, particle size distribution, moisture content, abrasiveness, fluidity, electrostatic tendency and explosion classification of your powder or granules. For soft, fragile materials such as food additives and plastic pellets, we adopt low-velocity dilute-phase conveying to reduce particle collision and breakage. For highly abrasive minerals, sand and slag powder, we select thickened wear-resistant pipes, elbow liners and anti-wear diverter valves to extend service life. For fine, sticky powders, we add air-assisted fluidization devices and anti-bridging structures to prevent hopper arching and pipeline clogging. Explosion-proof configurations, inert gas protection and dust suppression measures are deployed for combustible materials to eliminate hidden safety hazards.

The whole system is built around matched Roots blowers or rotary lobe blowers as the air source. The blower provides stable, pulse-free airflow and pressure to drive materials through closed pipelines. Compared with high-speed centrifugal fans, Roots blowers maintain steady pressure even when material load changes, which is critical for avoiding unstable feeding and blockage during variable feed rates. We configure the blower with inlet filters, silencers, safety relief valves and pressure monitoring instruments. Frequency conversion control is optional to adjust airflow dynamically according to real-time feeding quantity, saving energy while avoiding excessive air velocity that accelerates pipeline wear and material damage.

Our system covers the complete conveying loop, including feeding hopper, rotary airlock feeder, fluidization bin, conveying pipeline, wear-resistant elbows, diverter valves, receiving cyclone separator, dust collector and control cabinet. The rotary airlock feeder ensures continuous and quantitative feeding while blocking air backflow. Special curved elbows and lined bends are the core anti-wear components; these replace standard elbows where particle impact concentrates. The closed pipeline structure prevents dust leakage, protects the working environment and avoids material loss. The terminal dust collector captures fine dust, meets emission standards and prevents fine particles from entering the atmosphere. The control cabinet integrates feeding interlock, pressure high/low protection, blockage alarm and emergency stop functions. Once abnormal pressure is detected, the system triggers an alarm or protective shutdown to avoid secondary damage.

We prioritize safety throughout the design. For combustible powder such as flour, starch, aluminum powder and resin powder, we provide a full set of explosion protection solutions: explosion venting panels, spark detectors, suppression systems and nitrogen inerting options. All electrical components are selected according to the corresponding explosion-proof zone rating. Pressure and temperature sensors continuously monitor operating status. Anti-static grounding and conductive pipeline liners are used for electrostatic-sensitive materials to discharge static charges safely. The interlock logic stops feeding automatically when the air source fails or blockage occurs, preventing dangerous material accumulation.

After design confirmation, we provide general arrangement drawings, P&ID diagrams and component lists for your review. Key parts are pre-inspected and factory-assembled where possible. Before shipment, we carry out functional tests for feeders, valves and control loops. On-site installation guidance, commissioning and operation training are provided. Our technicians teach operators to set feeding speed, check pressure difference, judge blockage signs and conduct regular wear inspection. We supply long-term spare parts for wear-prone components such as elbows, airlock vanes and filter bags. Regular wear inspection plans help you replace parts proactively before leakage or failure occurs.

These custom pneumatic conveying systems are widely used in chemical raw materials, food processing, plastic granules, mineral powder, cement additives, feed and pharmaceutical industries. Whether you need short-distance transfer inside the workshop, long-distance cross-floor conveying, or multi-point distribution to multiple silos, we can customize dilute-phase, dense-phase or plug-flow conveying schemes. If you send us your material sample information, required capacity and conveying distance, we will calculate the air demand, select the suitable blower and layout, and offer a complete technical proposal and quotation.

FAQ

Q: What materials are suitable for your pneumatic conveying system?

A: It handles various powders and granules, including plastic pellets, mineral powder, food powder, chemical raw materials and feed. Special protection is available for abrasive, fragile or combustible materials.

Q: How do you reduce pipeline wear?

A: We use low-velocity design, wear-resistant lined elbows, thickened pipes and reasonable routing to reduce particle impact on pipe walls.

Q: Can the system prevent dust leakage?

A: Yes, the whole conveying route is fully enclosed. Matched dust collectors control fine dust emissions.

Q: Is explosion-proof configuration available for flammable powder?

A: Yes, we can supply explosion venting, spark detection, inert gas protection and explosion-proof electrical components for combustible media.