Operating Condition Analysis

We help customers identify the most optimized dust collection and filtration solution by rigorously evaluating operating variables. We want to reassure customers that your dust collection solutions will perform safely, efficiently, and reliably for many years to come. We focus on evaluating the operating variables of the following major categories:

  • Dust particle and flue gas physical & chemical characteristics
  • Baghouse, filter bag, and filter cage dimensions and parameters
  • Cleaning and dust discharge system parameters
  • Operating conditions (e.g., temperature, differential pressure, air volume and velocity, etc.)
Baghouse Inspection & Maintenance

Filter Media Design

The performance of any baghouse collector hinges on the design of its filter media. This specialized engineering process focuses on maximizing particle capture, optimizing dust cake release, and extending service life, structured around three critical pillars: Filter Media Selection, Filter Media Construction, and Post-treatment (Finishing).

Aramid Fiber

Filter Media Selection

Filter media selection is the foundational step, requiring the precise choice of base fiber material. We leverage our advanced lab and state-of-the-art testing equipment to match the media perfectly to the application’s stringent demands. This crucial choice is primarily dictated by the gas stream’s temperature, chemical composition, and moisture content.

Filter Media Construction

Leveraging over 20 years of experience and comprehensive use-case knowledge, we engineer media construction to achieve an optimized balance of filtration efficiency, mechanical strength, and maximum service life. This optimization begins with selecting the core structure: either woven or non-woven (felted) media. Furthermore, critical physical elements are precisely specified, including the embedded scrim for vital tensile stability, multi-layer designs to enhance dust loading, and tailored thickness and weight to maximize abrasion resistance and overall bag durability.

Dual-Density Needlefelt Filter Media
ePTFE Membrane Lamination

Post-Treatment (Finishing)

To improve the media’s performance in key areas—such as thermal stability, chemical resistance, dust release, and longevity—we custom design comprehensive filter media post-treatments. This finishing process involves specific physical and chemical modifications, including heat setting, impregnation, singeing, calendering, membrane lamination, and low-adhesion treatment. These specialized treatments are essential for preparing the media’s surface and structure to meet the exact demands of challenging industrial environments.

Filter Bag Design

Aokai custom designs filter bags built for your exact process conditions, maximizing filtration efficiency, reducing downtime, and ensuring compliance. We design critical components for your baghouse’s optimal performance.

design_services

Precision Fit and Airtight Sealing

Eliminating dust bypass is critical. We ensure a perfect, airtight interface with your hardware through:

  • Dimensional Fit: Precise sizing to prevent leaks and abrasion.
  • Tubesheet Seal: Customized cuffs/snap-rings for a permanent, airtight connection.
  • Optimized Cleaning Interface: Calibrated venturis to focus the cleaning pulse for maximum effect.

Unyielding Structural Integrity

Bags must endure extreme pressure, temperature, and cyclic stress. We maximize lifespan by customizing:

  • Seam Construction: Selecting the best patterns and stitching for high mechanical strength.
  • Thread Compatibility: Using high-performance materials (PTFE/Aramid) for superior heat and chemical resistance.
  • Base Reinforcement: Adding critical protection against abrasive dust streams to extend service life.

Integrated Safety and Protective Features

We integrate protective features to manage risk and complex demands, ensuring safety and compliance:

  • Anti-Static Grounding: Conductive strips safely dissipate static electricity in explosive environments.
  • Geometry Hardware: Specifying and placing rings or supports to maintain the bag’s proper shape during cleaning cycles.