Filter bags for flour processing are specially designed for efficient dust collection in flour milling, conveying, mixing, and packaging operations. These processes generate fine, lightweight, and highly combustible flour dust, making reliable dust control essential for operational safety and regulatory compliance.
To address explosion risks associated with flour dust, antistatic filter bags are widely used. The filter media incorporates conductive fibers or antistatic surface treatment, allowing static electricity generated during filtration to be safely dissipated. This significantly reduces the risk of electrostatic discharge and dust explosions in flour processing environments.
These filter bags offer high filtration efficiency for fine particles while maintaining stable air permeability, ensuring efficient airflow and low pressure drop in dust collection systems. Manufactured from food-grade polyester needle felt with optional PTFE membrane lamination, they provide excellent dust release, long service life, and consistent performance.
Filter bags for flour processing are commonly applied in pulse jet baghouse dust collectors and silo vent filters. By effectively capturing airborne flour dust and minimizing static buildup, they help maintain a clean and safe production environment, protect equipment, reduce product loss, and support compliance with occupational health, food safety, and environmental standards.
Technical Parameters
| Item | Specification |
|---|---|
| Filter Media Material | Polyester (PET) Needle Felt / Antistatic Polyester / PTFE Membrane Laminated Polyester |
| Weight (GSM) | 450 – 550 g/m² (Customizable) |
| Thickness | 1.6 – 2.2 mm |
| Air Permeability | 150 – 250 L/m²·s (at 200 Pa) |
| Filtration Efficiency | ≥ 99.9% |
| Operating Temperature | Continuous ≤ 130°C; Peak ≤ 150°C |
| Surface Treatment | Singed, Calendered, Heat-set |
| Optional Treatment | PTFE membrane, Antistatic treatment |
| Electrical Surface Resistance (Antistatic) | ≤ 10⁸ Ω |
| Moisture Resistance | Good |
| Chemical Resistance | Resistant to weak acids and alkalis |
| Dust Type | Fine, lightweight, combustible flour dust |
| Bag Construction | Round / Flat; Sewn or Welded seams |
| Top Design | Snap band / Cuff / Raw edge |
| Cage Compatibility | Carbon steel or Stainless steel |
| Applicable Equipment | Pulse jet baghouse, Silo vent filter |
| Typical Application | Flour milling, conveying, mixing, packaging |