Pneumatic conveying solution for polyimide powder

In the field of specialized material processing, polyimide powder is widely used in industries such as electronics, aerospace, and new energy due to its excellent heat resistance, electrical insulation, and chemical stability. However, this high value-added powder often faces three major challenges during transportation: easy agglomeration, high wear, and susceptibility to moisture, leading to production line blockages, equipment wear, and quality fluctuations. Based on years of powder engineering experience, Head Powder offers customized pneumatic conveying solutions for polyimide powder, helping customers achieve stable, clean, and efficient automated conveying.

Material characteristics

Polyimide powder has the following typical characteristics: fine particle size (usually 10-100μm), low apparent density (0.3-0.6 g/cm³), poor flowability, sensitivity to moisture (prone to caking after hygroscopy), and sensitivity to shear force (high-speed transport may cause degradation or charge). These characteristics place stringent requirements on the design of pneumatic conveying systems.

Product Introduction

The polyimide powder pneumatic conveying system provided by Head Powder is a customized solution integrating conveying, metering, dust removal, and control. The system uses low-flow, dense-phase conveying technology, paired with proprietary fluidization and anti-static designs, effectively reducing powder damage and residue. The equipment material is stainless steel SUS304 or 316L, with the inner surface polished to a mirror finish to meet clean production requirements. The control system supports PLC automatic operation, allowing remote monitoring of key parameters such as conveying pressure, flow, and material level, ensuring production continuity.

Product advantages

To address customer pain points, Head Powder offers the following solutions:

• Anti-blockage and bridge prevention: Uses a vibrating activated hopper + fluidized cone, combined with a pulse back-blow filtration device, to solve the issues of bridging and blockage of powder in silos and pipelines.
• Low-loss conveying: Dense phase conveying mode, reducing conveying speed by 30%-50% compared to traditional dilute phase, minimizing powder particle crushing and pipeline wear.
• Moisture-proof and sealed: The system operates in a fully enclosed manner, equipped with nitrogen protection or dry air source interfaces to isolate moisture from the source, helping to stabilize powder quality.
• It is a relatively accurate measuring: Can integrate a weightless feeder or screw weighing scale, achieving ±0.5% conveying accuracy to meet formula feeding requirements.
• Easy maintenance:Modular design allows quick replacement of wear parts, and pipes are connected with quick-install clamps for easy cleaning and maintenance.