As a high-value, highly active powder material, hard carbon powder is widely used in lithium battery anodes, energy storage materials, and other fields. However, in actual production and material transfer, enterprises often face the following problems: severe dust from manual feeding, which not only pollutes the environment but also threatens the respiratory health of operators; Traditional mechanical conveying equipment is prone to blockages and bridging due to the lightweight and high specific surface area characteristics of hard toner, leading to frequent production line shutdowns for maintenance; Materials are easily crushed or oxidized during transportation, affecting product consistency; In addition, hard toner with different batches and particle sizes has very different conveying requirements, making it difficult for general equipment to adapt, resulting in high energy consumption and costs.

Material characteristics

Hard carbon powder is an amorphous carbon material obtained by high-temperature carbonization and grinding of precursors such as biomass or resin. Its typical characteristics include: true density of about 1.5~1.8 g/cm³, bulk density of only 0.3~0.6 g/cm³ (lightweight), average particle size between 5~30 μm (fine powder), porous particle surface with usual static electricity, highly prone to adsorption and agglomeration; At the same time, hard carbon powder is hydrophilic and tends to clump in humid environments, requiring extremely high sealing, moisture resistance, and airflow stability in the conveying system.

Product Introduction

Head Powder provides customized pneumatic conveying system equipment for hard toner, tailored to the special material properties of hard toner. This system uses positive pressure dilute phase or dense phase pneumatic conveying technology, with one-to-one solution design based on the customer's on-site conditions (conveying distance, lifting height, capacity requirements, pipeline layout, etc.). Core components include: professional anti-blockage feeding devices (such as rotary airlock valves or Venturi injectors), high-performance separation filtration units (such as pulse back-blow baghouse dust collectors), intelligent control cabinets, and supporting air source treatment systems. The entire unit can achieve fully sealed, dust-free, and automated operation, suitable for in-plant circulation of powders at every stage from crushing and mixing to packaging and storage.

Product advantages

To address customer pain points, Head Powder offers the following systematic solutions:
(1) Fully enclosed conveying: The system's pipelines and equipment all adopt negative/positive pressure sealed designs, combined with high-efficiency dust collectors to prevent dust leakage from the source, helping to keep the work environment clean and meeting environmental protection and occupational health requirements.
(2) Anti-clogging and anti-bridging: The feed inlet and pipeline corners use airflow-optimized structures, combined with vibration-assisted or fluidized bed designs, effectively solving the challenges of hard toner being easily bridged or sticking to walls, helping smooth material flow and reducing downtime and cleaning frequency.
(3) Low crushing and low oxidation: Uses dense phase, low-speed pushing (high gas-solid ratio), allowing materials to slide in a plug-like manner inside the pipeline, reducing the risk of particle collision and crushing; At the same time, the system can be filled with inert gases (such as nitrogen) to isolate oxygen and prevent oxidation failure at high temperatures.
(4) Intelligent customization: Based on PLC + touchscreen control system, it monitors conveying pressure, flow, and material level in real time, automatically adjusting air source parameters according to particle size and humidity of different batches, enabling "one-click production change" and better adapting to flexible production needs.