Reliable Filtration Solutions for Cement & Lime Rotary Kilns

Long-Term Dust Control Under High-Temperature and Corrosive Conditions

Rotary kilns are widely used in cement, lime, and metallurgy industries. Due to the periodic firing cycles (e.g., every 20 minutes), the flue gas temperature often spikes to 220–250°C or even higher, though the average is around 160°C. Combined with sticky dust and corrosive gases, these conditions demand high-performance, wear-resistant, and thermally stable filter bags.

Filtration Challenges in Rotary Kilns

• Instantaneous High Temperature: Frequent flame changes cause surges in flue gas temperature, stressing filter material performance.
• Sticky Dust: Petroleum coke and mixed fuels produce adhesive particles that easily cake on standard filters.
• High Dust Load: Inlet dust concentration often reaches 1000–1500g/m³, requiring strong abrasion resistance and membrane strength.
• Fine Particles & Corrosive Gas: High filtration precision is needed to meet <10mg/m³ emission standards.
• Low Filtration Wind Speed: Typically ≤ 0.7 m/min to ensure capture efficiency and prolong service life.

Our Recommended Solutions

To meet these demanding requirements, Omela Filtration provides specialized filter media with tailored combinations of high-temperature fibers and PTFE surface treatment or lamination.

🔹 Product Parameter Comparison

🏁 Application Notes

• Material Ratio Adjustment:
  The proportion of P84 fiber can vary based on dust load and filtration speed. For example:
  • At 1000mg/m³ dust and ≤0.7 m/min air-to-cloth ratio, 20–30% P84 with PTFE impregnation is sufficient.
• Membrane Type:
  For extremely sticky dust or aggressive wear, coated membranes (>800g/m²) are preferred.
• Service Life:
  Under normal kiln operation, high-performance filter bags last over 3 years with proper cleaning and maintenance.

📞 Contact Us

Need help selecting the right filter media for your rotary kiln system?
📧 [email protected]
📱 WhatsApp: +86 18001929167

We provide free samples, technical support, and bulk order discounts.