Dust Collector Filter Bag

PTFE filter bags, also known as Teflon® filter bags, are crafted from polytetrafluoroethylene (PTFE), a high-performance synthetic polymer renowned for its exceptional properties. These bags offer:

1. High Filtration Efficiency: Microscopic pores in the PTFE material provide a large surface area for effective particle capture, achieving filtration efficiencies exceeding 99%, crucial for stringent air quality regulations.
2. Chemical Inertness: Resistant to corrosive chemicals, ensuring longer bag life and reduced risk of degradation or failure in aggressive gas filtration applications.
3. Excellent Thermal Stability: Withstanding extreme temperatures up to 240°C (464°F), ideal for high-temperature gas filtration in industrial furnaces or incinerators.
4. Low Friction Coefficient: Smooth PTFE surface prevents dust particles from adhering, facilitating easy cleaning, reducing maintenance, and ensuring consistent filtration performance.
5. Hydrolysis and Oxidation Resistance: Water-repelling characteristics and high resistance to oxidation ensure longevity and durability even in high moist heat environments.

Characteristics

Pros:

• Excellent resistance to acid, alkali, hydrolysis, high temperature, and oxidation.
• Long-lasting service life, reducing operating costs.

Cons:

• High initial cost.
• Requires a minimum supporting cage with 20 vertical wires due to poor flex abrasion qualities.

Application

PTFE filter bags find applications in various industries, including:

• Chemical Industry
• Cement Industry
• Coal Boiler
• Garbage and Sludge Incineration
• Renewable Energy Industry

Construction & Treatment

PTFE filter media can be tailored for specific operating conditions and industries through various construction and treatment options.

Filter Media Construction: Needle Felting

Needle felting, a traditional non-woven fabrication process, creates a dense structure with or without a woven support scrim. Smooth surfaces offer good depth filtration and particle capture, ensuring efficient filtration performance.