Flame Retardant Dust Collector Bags
Flame retardant filter bags are specially designed for industrial dust collection systems operating in high-temperature and fire-prone environments. They provide enhanced safety, stable filtration efficiency, and long service life under harsh working conditions.
Flame retardant filter bags are manufactured using advanced high-temperature resistant fibers such as PPS, PTFE, or aramid, combined with flame-retardant treatments. These filter bags are widely used in industries where dust contains combustible particles or where high temperatures may lead to fire risks.
They ensure reliable dust filtration performance while minimizing the risk of ignition, making them a critical component in industrial air pollution control systems.
Three Main Causes of Filter Bag Burning
Filter bag damage or burning in dust collection systems is a common issue in industrial applications, especially under high-temperature or high-risk conditions. The three primary causes are:
1. Combustible Dust : Certain types of dust, such as coal dust, wood dust, or chemical powders, are highly flammable. When accumulated inside the filtration system, these particles can ignite under suitable conditions, leading to filter bag damage or even fire hazards.
2. Spark Intrusion : High-temperature sparks or embers generated during industrial processes (e.g., welding, grinding, or furnace operations) may enter the dust collector. If not properly controlled, these sparks can directly ignite the filter media, causing burning or failure of the bags.
3. Static Electricity Accumulation : During filtration, friction between dust particles and filter media can generate static electricity. If the static charge is not effectively dissipated, it may lead to electrostatic discharge (ESD), which can ignite combustible dust and result in filter bag burning.
Solution:
Use flame retardant and anti-static filter bags to effectively reduce fire risks and improve system safety.
Yuanchen Class A Flame Retardant Dust Collector Bags
Filter Media Performance Testing & Evaluation
| Category | Gram Weight (g/m²) | Air Permeability (m³/m²·min) | Thickness (mm) | Thermal Shrinkage (%) | Acid & Alkali Resistance | Tensile Strength (N/cm) |
|---|---|---|---|---|---|---|
| Normal Polyester Filter Media | 450-500 | 12-16 | 2-2.2 | Both warp & weft < 1% | No obvious peeling or corrosion of flame retardant layer in acid/alkali test; No peeling or tearing of flame retardant layer during stretching | Warp: 1200N Weft: 1500N |
| Flame Retardant Polyester Filter Media | 600-650 | 14-16 | 2.6-2.9 |
Project Cases：Biomass boiler project
Process:
Xingwei Flame Retardant Filter Media
Operating Conditions:
• Inlet Dust: 20,000 mg/Nm³
• Outlet Dust: ≤ 10 mg/Nm³
• Temperature: ≤ 240°C (Continuous), ≤ 280°C (Peak)
Gas Composition:
• NO₂ ≤ 300 mg/Nm³
• SO₂ ≤ 200 mg/Nm³
• O₂ ≤ 15%
• Moisture ≤ 20%
System:
• Cleaning: Pulse Jet
• Application: District Heating
• Fuel: Biomass Thermal Oil Boiler
