Contact: General Manager Wang
Mobile: +86 13862704321
Tel: +86-513-88402039
Email：wjf@ywjx.net
Website：www.ywjx.net
Address: No. 88 Fuqian Road, Baidian Town, Haian County, Jiangsu Province, China
The filter bag is the core filtration element in industrial dust collection equipment (such as pulse-jet baghouse dust collectors, silo-top dust collectors, etc.). By filtering particulate matter from industrial exhaust gases, it achieves gas purification and dust recovery. Widely used in industrial manufacturing, chemical processing, building materials, metallurgy, and other sectors, it is a critical component for environmental compliance and production efficiency improvement.
Core Functions
1. Dust Filtration: Utilizes the porous structure of the filter media to intercept solid dust particles in exhaust gases (e.g., cement dust, pulverized coal, chemical dust, etc.). Filtration efficiency can reach over 99.9%, meeting national emission standards (such as GB 16297).
2. Gas Purification: Cleaned gas after filtration can be directly discharged or recycled, reducing air pollution and protecting operator health.
3. Dust Recovery: For valuable dust (e.g., metal powders, chemical raw materials), it can be intercepted by the filter bag and recovered for reuse, reducing raw material loss and improving economic benefits for the enterprise.
4. Equipment Protection: Prevents dust from entering downstream equipment such as fans and ductwork, avoiding equipment wear and blockages, thereby extending the service life of the dust collection system.
Basic Structure & Material Types
| Material Type | Key Characteristics | Temperature Resistance | Application Scenarios |
| Polyester (PET) | Cost-effective, high abrasion resistance, good air permeability, moderate acid/alkali resistance | ≤130℃ | Ambient temperature conditions (e.g., grain processing, mechanical processing, building materials – ambient dust) |
| Polypropylene (PP) | Excellent acid/alkali resistance, low cost, lightweight, not heat-resistant | ≤90℃ | Strong acid/alkali conditions (e.g., sulfur/chlorine-containing exhaust in chemical industry, electroplating wastewater treatment dust) |
| Fiberglass (GF) | High-temperature resistance, strong corrosion resistance, dimensionally stable, relatively poor abrasion resistance | ≤260℃ | High-temperature conditions (e.g., steel mill sinter plants, boiler flue gas, cement kiln tail high-temperature dust) |
| PTFE (Polytetrafluoroethylene) | Heat-resistant, acid-resistant, alkali-resistant, organic solvent-resistant, extremely stable, high filtration precision, long service life | ≤260℃ | Harsh conditions (e.g., highly corrosive chemical exhaust, high-temperature high-humidity dust, oil-mist-containing dust) |
| Aramid (Meta-Aramid) | High-temperature resistance, high strength, abrasion-resistant, moderate acid resistance, relatively high cost | ≤200℃ | Medium-to-high temperature conditions (e.g., asphalt mixing, waste incineration, non-ferrous metal smelting dust) |
| Nomex (Meta-Aramid variant) | Better high-temperature and acid/alkali resistance than standard aramid, good dimensional stability, strong abrasion resistance | ≤204℃ | Complex conditions (e.g., cement dry-process kilns, power plant boilers, chemical reactor dust) |
