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FMS Needle-Punched Felt Filter Bags for Dust Collection
Continuous operating temperature up to 240~260℃, suitable for high-temperature flue gas filtration environments.
Abrasion resistance and folding resistance far superior to ordinary fiberglass filter bags, capable of withstanding frequent pulse cleaning and high-velocity conditions.
The composite fiber structure improves the filter media’s air permeability, providing excellent capture ability for fine dust. Filtration efficiency typically reaches over 99%, while reducing system energy consumption and operating costs.
Resistant to acids, alkalis, and various corrosive gases, suitable for complex and harsh industrial environments, with a long service life.
Description
Details
Base Fabric Material – FMS Needle Felt
FMS (composite filter media) dust collection filter bags are made of high-temperature resistant composite needle-punched felt, created by blending fiberglass with high-performance fibers such as P84, PPS, and aramid. The needle felt leverages the strengths of the various constituent fibers, offering excellent high-temperature resistance, corrosion resistance, filtration performance, and mechanical strength; it is widely used in industrial dust collection systems operating under conditions of high temperatures and high dust concentrations.
Physical Properties
| Property | Unit | Specification |
|---|---|---|
| Fiber | — | Mixed Fiber |
| Scrim | — | Fiberglass Yarn |
| Weight | g/m² | 850 |
| Thickness | mm | 2.4 |
| Width | m | ≤ 2.2 |
| Finish Treatment | — | PTFE Impregnation |
| Air Permeability | L/m²/s @ 200 Pa | 200–300 |
Mechanical Properties
| Property | Unit | Warp | Weft |
|---|---|---|---|
| Tensile Strength | N/5×20 cm | 1300 | 1500 |
| Tensile Elongation | % | 8 | 8 |
Temperature Resistance
| Property | Unit | Specification |
|---|---|---|
| Continuous Temperature | °C | 240 |
| Instant Temperature | °C | 280 |
Chemical Properties
| Property | Performance |
|---|---|
| Anti-acid | Good |
| Anti-alkali | Good |
| Anti-abrasion | Good |
| Hydrolysis Stability | Middle |
Post-processing Technology
The ability of FMS filter bags to perform reliably under a wide range of harsh and complex operating conditions is largely attributed to the advanced surface finishing treatments applied after manufacturing.
- Water & Oil Repellent Treatment
The filter media is impregnated or coated with fluorocarbon resins and other specialized additives, creating an extremely low surface energy layer on the fiber surface. This treatment is particularly suitable for applications involving high humidity, oily fumes, or conditions prone to condensation. Water and oil droplets are prevented from penetrating the fibers, effectively reducing bag blinding and significantly improving dust cake release and cleaning performance.
- Antistatic Treatment
Conductive fibers are blended into the scrim or surface layer, or a conductive coating is applied to the filter media surface. This enables the filter bag to safely dissipate static electricity. It is especially important for handling combustible or explosive dusts, helping prevent fire and explosion hazards caused by electrostatic discharge and greatly enhancing operational safety.
- PTFE (Polytetrafluoroethylene) Membrane Lamination
A microporous PTFE membrane is laminated onto the surface of the FMS filter media using a specialized bonding process. This treatment transforms the conventional “depth filtration” mechanism into highly efficient “surface filtration,” resulting in superior dust collection efficiency, lower pressure drop, and easier filter cleaning.
Filmedia® – Custom Industrial Dust Collector Filter Bags
Filmedia® is a professional manufacturer of dust collection filter bags. We supply diversified material filter bags with customized sizes and surface treatments, serving industrial dust removal systems across global industries with reliable quality and full technical support.
Applications
FMS filter bags are widely used in high-temperature industrial dust collection systems, including:
- Iron & Steel Plants
- Cement Plants
- Power Generation Plants
- Waste Incineration Facilities
- Metallurgical Industries
- Ferroalloy Production
- Carbon Black Manufacturing
- Chemical Processing Plants
- Asphalt Mixing Plants
- Calcium Carbide Plants
- Non-Ferrous Metal Smelting