A lithium iron phosphate producer in Chaoyang, Liaoning faces numerous challenges in material conveying during the production line upgrade. After extensive technical comparisons and on-site inspections, the final selection was made using Head Powder's pipeline sealed pneumatic conveying complete engineering solution, successfully achieving fully sealed and automated conveying of lithium iron phosphate powder from feeding to the end stage, thereby improving production stability and environmental protection levels.

Customer pain points

The company originally used traditional mechanical conveying methods (such as screw conveying or belt lifting), which exposed the following prominent issues:

• Material exposure leads to severe dust dispersion, which not only pollutes the workshop environment but also causes raw material waste and makes it difficult to meet increasingly stringent environmental emission standards.
• Lithium iron phosphate powder has poor flowability and easily absorbs moisture; traditional equipment is prone to material blockage and bridging, affecting production continuity.
• There are many manual intervention steps, requiring a large number of operators for feeding, transferring, and cleaning, resulting in high labor costs and occupational health risks.
• Equipment wears out quickly, requires frequent maintenance, and overall operating efficiency is low, restricting capacity improvement.

Product advantages

To address these pain points, Head Powder has designed a complete engineering solution based on positive pressure dense phase pneumatic conveying technology, with the following main features:

• Fully enclosed conveying:The pipeline system is fully enclosed, allowing materials to move along the pipeline driven by airflow, preventing dust leakage. The workshop environment is improved and meets environmental protection and occupational health requirements.
• Low breakage, no delamination:Using a low-speed dense phase conveying mode, materials move forward in a bolt column inside the pipeline, with minimal particle collisions, effectively preventing lithium iron phosphate crystal breakage and component delamination, which helps product consistency.
• Intelligent control:Equipped with a PLC automatic control system, it monitors air source pressure, conveying speed, material level, and other parameters in real time, allowing adjustment of conveying rhythm as needed to achieve unattended operation and reduce manual intervention.
• Customized anti-corrosion and moisture-proof:The materials for pipes and valves are selected based on the characteristics of lithium iron phosphate materials, with smooth inner walls and anti-static and anti-corrosion treatments. Combined with dehumidifying air sources, these materials effectively prevent moisture absorption and caking.

Implementation Results

After the project was put into operation, user units reported that workshop dust concentration dropped by over 90%, material loss rate dropped to within 0.2%, continuous operation failure rates of the conveyor system significantly decreased, overall production efficiency increased by about 30%, and the number of operators per shift was reduced from 6 to 1 for inspection. This project has become a demonstration case for powder conveying in the regional lithium iron phosphate industry.

Product features

• Fully Sealed Conveying:The entire line from the feeding station to the receiving silo is sealed, with no leakage points, meeting dust-free production requirements.
• Low energy consumption and high efficiency:It adopts the principle of dense phase conveying, with a low gas-solid ratio, and unit energy consumption per conveying unit is over 40% lower than that of dilute-phase conveying.
• Intelligent control:Integrates material level sensors, pressure detection, and remote monitoring, supporting communication and linkage with upper-level systems to achieve more accurate material scheduling.
• Customized Design:Customizing pipeline routing, feeder selection, and gas source parameters according to material characteristics (particle size, moisture content, flowability) helps stabilize conveying.

Technical specifications

• Conveying capacity:Single-line capacity ranges from 0.5~20 t/h, and can be flexibly configured according to customer production line requirements.
• Conveying distance:Horizontal conveying can reach up to 200 m, vertical lifting height is 30 m higher, supporting multiple branch paths.
• Conveying pressure:System operating pressure is 0.1~0.4 MPa, supplied by compressor or Roots fan, with stable and controllable pressure.
• Applicable materials:Specially adapted for lithium battery cathode powder such as lithium iron phosphate, iron phosphate, and lithium carbonate, and can also be used for other high-value, easily damaged powders with dustproof requirements.