A new energy materials company located in Chifeng, Inner Mongolia, mainly engages in the production of lithium battery cathode materials and precursors. Its powder raw materials face serious risks of static electricity accumulation, dust leakage, and cross-contamination during transportation, feeding, and conveying stages. To support safe production and product quality, the company commissioned Head Powder to design and implement an anti-static sealed conveying system for lithium-grade powders, achieving fully sealed, low-dust, and safe, explosion-proof material flow from raw material silos to production equipment.

Customer pain points

Lithium battery powders (such as lithium iron phosphate, ternary precursors, etc.) are fine, easily fluttered, and electrostatically sensitive materials. Customers encountered multiple challenges in their existing open conveyor processes:
•Static electricity safety hazards: High-speed friction between the powder and the pipe wall generates static electricity, with local potentials reaching several thousand volts, posing a risk of ignition.
•Dust leakage and loss: Traditional screw or pneumatic conveying lacks sufficient sealing, causing excessive dust concentration on site and serious material waste.
•Quality fluctuations: External humidity and impurities mixed in increase powder moisture and metallic foreign matter, affecting the consistency of battery-grade products.
•Environmental compliance pressure: Dust emissions do not meet local environmental protection limits, facing pressure for rectification.

Head Powder Solutions and Product Advantages

To address these pain points, Head Powder offers a customized anti-static sealed lithium battery powder conveying project, with the following main features:

1. Fully enclosed pipe chain conveying to prevent dust leakage

Using a pipe chain conveyor combined with a specially made sealing ring, the leakage rate of the entire conveying path is below 0.01%. Materials are smoothly pushed by chain plates inside the sealed pipeline, avoiding dust and particle breakage caused by pneumatic conveying.

2. Intelligent anti-static design

All pipes and chain plates use conductive polymer or metal liners, with a system grounding resistance less than 4Ω. It also has a built-in static discharge device that monitors static voltage in real time. When thresholds are exceeded, it automatically triggers audible and visual alarms and slows down in coordination, eliminating static spark risks at the source.

3. Low shear and low temperature lift conveying

The conveying speed is controlled at 0.1~0.5 m/s, with minimal friction between the material and the tube wall, temperature rise less than 5°C, protecting the crystalline structure and moisture content of the lithium battery powder, and helping to stabilize the batch.

4. Modular integration and intelligent control

The system supports PLC automatic control, remote monitoring, and data recording, and can be integrated with customers' MES systems. It is also equipped with a quick-wash interface and quick-install flange, facilitating switching between various powders during production changes and reducing cross-contamination.

After the project was put into operation, on-site dust concentration dropped below 0.5 mg/m³, static electricity incidents were eliminated, material loss decreased by about 3%, product pass rate increased to 99.2%, and it successfully passed environmental inspections, becoming a demonstration project for lithium battery material transportation in the Chifeng area.