Gansu Baiyin Metal Silicon Powder Explosion-Proof Inert Gas Transportation Engineering Project

During the processing and transportation of metal silicon powder, the risk of dust explosions and material loss have always been focal points of concern for the industry. Head Powder customized an explosion-proof inert gas pneumatic conveying system for a metal silicon powder manufacturer in Baiyin, Gansu, improving the safety of highly active dust in sealed pipelines while achieving clean, low-energy material transfer.

Project Background and Client Pain Points

This customer mainly engaged in grinding and packaging of silicon metal powder. The original conveying method involved manual handling combined with open mechanical lifting, which had three core pain points: First, the particles of silicon metal powder are extremely fine and easily form explosive dust clouds in the air, posing a risk of ignition and explosion in ordinary pneumatic conveying systems; Second, materials are prone to moisture and oxidation during transportation, affecting product purity; Third, low manual operation efficiency and dust emissions lead to harsh workshop environments and high occupational health risks. Customers urgently need a fully enclosed conveying solution that balances safety, cleanliness, and efficiency.

Head powder solutions and product advantages

To address customer pain points, Head Powder has adopted an inert gas closed-circuit circulating pneumatic conveying system using nitrogen as the delivery medium. The system achieves a unified balance of safety and efficiency through the following design:

• The entire pipeline adopts an explosion-proof sealed structure, equipped with pressure monitoring and automatic pressure relief devices to eliminate explosion conditions at the source;
• The oxygen content of the transported gas is strictly controlled below 5%, combined with anti-static pipeline materials to fully avoid the risk of dust explosions;
• The closed-loop design allows nitrogen to be recovered and reused, reducing operating costs while preventing dust leakage;
• The intelligent PLC control system automatically adjusts conveying speed and gas-solid ratio according to material characteristics, helping metal silicon powder flow smoothly within the pipeline and reducing particle fragmentation and blockage.

After project delivery, dust concentration on the customer's site dropped below national standard limits, conveying efficiency improved by about 40% compared to before the renovation, material loss rate dropped to within 0.3%, and the equipment has operated continuously without any safety abnormalities to date.

Applicable scenarios and long-term value

This case not only solves the explosion-proof transportation challenge of metal silicon powder but also provides a replicable technical path for similar conditions in industries such as lithium battery materials, fine chemicals, and non-ferrous metal powders. Head Powder continues to iterate its technology in the field of pneumatic conveying, committed to providing safe, reliable, and economical handling solutions for high-value, high-risk powder materials.