Dust Collection Filter Bags

I. Material Classification and Characteristics

1. Normal-Temperature Filter Bags
   • Materials: Polyester, polypropylene, acrylic, etc.
   • Features: Good breathability, smooth surface, easy dust 剥离，suitable for general industrial dust removal (temperature ≤ 120°C).
2. Medium-Temperature Filter Bags
   • Materials: Aramid fibers, PPS (polyphenylene sulfide), etc.
   • Features: Treated for water, oil, and corrosion resistance, adapted to complex working conditions (temperature ≤ 200°C).
3. High-Temperature Filter Bags
   • Materials: P84, expanded glass fiber, PTFE (polytetrafluoroethylene), etc.
   • Features: Strong thermal stability, excellent acid and alkali resistance, suitable for high-temperature flue gas (temperature ≤ 280°C).

II. Application Fields

• Industrial Dust Removal: Steel, cement, power, chemical, coking, and other industries.
• Environmental Protection Projects: Waste incineration, sewage treatment, flue gas purification from coal-fired boilers.
• Other Scenarios: Mining, food processing, woodworking, electronics industry, and other dust 治理.

III. Selection Factors

1. Working Conditions: Temperature, humidity, dust particle size, and chemical properties.
2. Filtration Efficiency: Choose micron-to-nanometer precision based on requirements.
3. Dust Cleaning Method: Pulse jet, mechanical vibration, etc., affecting filter bag lifespan.
4. Equipment Compatibility: Filter structure, installation method, and maintenance costs.

IV. Quality Judgment and Craftsmanship

• Material Quality: Key indicators include high-temperature resistance, air permeability, and filtration accuracy.
• Manufacturing Process: Produced in a clean environment with singeing and calendering to prevent fiber shedding.
• Sealing Performance: Poor sewing may lead to dust leakage and reduced efficiency.

V. Maintenance and Care

• Regular Dust Cleaning: Prevent dust accumulation to reduce resistance and extend lifespan.
• Damage Inspection: Replace aged or damaged bags promptly to avoid secondary pollution.
• Operating Control: Avoid over-temperature and over-pressure operation to minimize wear.

VI. Common Types

• Polyester Filter Bags: Cost-effective, suitable for normal-temperature conditions.
• Glass Fiber Filter Bags: High-temperature resistance but require corrosion protection.
• PPS Filter Bags: Acid and alkali resistance, ideal for harsh environments like coal-fired power plants.
• PTFE Membrane Filter Bags: High-precision filtration for ultrafine dust.