In the production of lithium battery materials, carbon black, as a key raw material for conductive agents, directly affects product quality and production line efficiency through its conveying process. A lithium battery materials company in Qingyuan, Guangdong once faced issues such as dust leakage, pipeline blockages, and high energy consumption caused by traditional mechanical conveying, which severely restricted production cycles and environmental standards. Head Powder has tailored a continuous jet negative pressure conveying system for this scenario, centered on negative pressure pneumatic conveying technology, achieving sealed, continuous, and stable carbon black conveying from storage to batching, helping customers upgrade their production lines.

Customer pain point analysis

The company faces multiple challenges in the carbon black transportation process:

• Severe dust pollution:Carbon black particles are extremely fine (particle size about 20-50μm), and traditional open or screw conveying methods tend to generate large amounts of dust, which not only pollutes the workshop environment but also poses health risks to operators.
• Frequent pipeline blockages:Carbon black has high adhesion, low flowability, and strong electrostatic properties. In ordinary pneumatic conveying, it easily adheres to pipe walls, causing conveying interruptions, time-consuming cleaning, and increased maintenance costs.
• The contradiction between energy consumption and efficiency:The original conveying system required multiple high-power fans, resulting in high energy consumption and inability to achieve continuous quantitative feeding, which affected the batching accuracy of downstream processes.
• Limited spatial layout:The existing production lines are compact, traditional conveying equipment occupies a large amount of floor space, and cannot meet the needs of multi-layer, cross-floor conveying.

Head Powder Solutions

To address these pain points, the Head Powder Technology team designed a negative pressure conveying system centered on continuous injectors, with specific solutions including:

• Negative pressure sealed conveying:Using jet pumps to generate continuous negative pressure, materials are drawn in by airflow inside fully sealed pipelines, preventing dust from escaping at the source and helping to keep the workshop environment clean.
• Anti-clogging structure design:The inner wall of the pipeline undergoes special polishing treatment (Ra≤0.8μm), combined with a reasonable flow rate and gas-solid ratio to effectively reduce carbon black adhesion; it is also equipped with an automatic back-blowing device to regularly clean residual pipe walls, supporting continuous operation.
• Intelligent variable frequency control:The injector's operating parameters are adjusted in real time according to downstream batching needs, achieving a wide range of 0.5-5t/h with relatively accurate feeding, reducing conveying energy consumption by about 30%-40% compared to traditional systems.
• Flexible layout adaptation:The system supports a conveying distance of 30m horizontally and 15m vertically. Pipelines can be laid overhead along factory beams and columns, freeing up ground space and meeting multi-point feeding needs across floors.

After the solution was put into use, dust concentration on the customer's production line dropped below 1mg/m³ (far below the national standard limit), equipment failure rates dropped by over 90%, annual maintenance costs were saved by over 200,000 yuan, and batching accuracy reached ±0.5%, providing stable and reliable carbon black supply support for subsequent lithium battery cathode slurry preparation. Head Powder continues to deepen its presence in the pneumatic conveying sector, dedicated to providing efficient, clean, and intelligent material handling solutions for the lithium battery new materials industry.