Fiberglass Composite Filter Bag
Fiberglass composite filter bags are made of synthetic, natural, or glass fiber needle-punched felt and are mainly used for industrial dust filtration.
Product Details
A Fiberglass Composite Filter Bag is a type of industrial filter used for air filtration in various dust collection applications, especially where high temperatures are involved. These filter bags are constructed from fiberglass materials, sometimes combined with other synthetic fibers, to enhance their properties and performance.
The term “composite” in this context refers to the combination of fiberglass with other materials to produce a filter medium that has improved characteristics compared to using just one type of fiber. For example, a composite may include a base fabric of woven fiberglass with a felted surface layer of another material, such as P84 polyimide or PTFE (polytetrafluoroethylene), to improve filtration efficiency, chemical resistance, or durability.
Key features of Fiberglass Composite Filter Bags often include:
- High-Temperature Resistance: Fiberglass has a high melting point, which makes these filter bags suitable for use in environments with elevated temperatures, such as those found in cement kilns, incinerators, or metal processing industries.
- Chemical Stability: Fiberglass composites are generally resistant to a wide range of chemicals, making them suitable for filtering corrosive gases or in industries where chemical exposure is common.
- Durability: The strength of fiberglass provides good resistance to wear and tear, leading to a longer service life for the filter bags.
- Efficiency: The tight weave of the fiberglass and the structure of the composite materials can provide high filtration efficiencies, capturing fine particles and preventing them from being released into the atmosphere.
- Customizability: These filter bags can be custom-designed with various treatments, coatings, and finishes to meet specific requirements of different industrial applications.
Fiberglass Composite Filter Bags are typically used in baghouse dust collectors, where they are suspended in a large chamber. As dirty gas enters the baghouse, it passes through these bags, leaving dust and particulate matter on the surface, while clean air passes through and exits the collector. The collected dust is then removed from the bags by various cleaning mechanisms, such as shaking or reverse air pulsing, and the bags are ready to filter again.
| Fiber name | Aramid+Fiberglass | PPS+Fiberglass | P84+Fiberglass | |
| GSM (g/m²) | 850 | 850 | 850 | |
| Thickness (mm) | 2.5 | 2.5 | 2.5 | |
| Air Permeability (L/d㎡.min) | 30-50 | 30-50 | 30-50 | |
| Break Strength (N/20×5cm) | Warp Weft | ≥2300 ≥2300 | ≥2300 ≥2300 | ≥2300 ≥2300 |
| Elongation at Break (%) | Warp Weft | ≤10 ≤10 | ≤10 ≤10 | ≤10 ≤10 |
| Continuous Temperature of (℃) | 204 | 180 | 260 | |
| Instantaneous Temperature (℃) | 240 | 220 | 280 | |
| Acid Resistance | Good | Excellent | Excellent | |
| Alkali Resistance | Excellent | Excellent | Excellent | |
| Oxidation Resistance | Excellent | Good | Excellent | |
| Hydrolytic stability | Good | Excellent | Good | |
| Finish Treatment | PTFE impregnation, PTFE membrane lamination, Heat-setting, Surface smoothing. |
A Fiberglass Composite Filter Bag is a type of industrial filter bag designed for use in dust collection systems, particularly in high-temperature applications. These filter bags are constructed from fiberglass materials combined with other high-performance synthetic fibers or coatings to enhance their filtration capabilities and durability. The composite nature of these filter bags allows them to leverage the beneficial properties of multiple materials.
Here are some key features and advantages of Fiberglass Composite Filter Bags:
- High-Temperature Resistance: Fiberglass composite filter bags can withstand very high temperatures, often exceeding 260°C (500°F), making them suitable for applications like cement kilns, steel mills, and power plants.
- Structural Integrity: The combination of fiberglass with other fibers can result in improved structural integrity and dimensional stability even under harsh operating conditions.
- Chemical Resistance: These filters often exhibit excellent resistance to a wide range of chemicals, including acids and alkalis.
- High Filtration Efficiency: The composite materials can provide high filtration efficiency for fine particulate capture while maintaining good air permeability.
- Durability: The use of high-performance materials in a composite structure can lead to increased durability and longer service life for the filter bags.
- Customization: Fiberglass composite filter bags can be customized with various treatments and finishes to enhance performance for specific applications, such as resistance to abrasion, hydrophobic properties, or antistatic features.
- Energy Efficiency: The effective filtration and air permeability of these filter bags can contribute to energy savings in the dust collection system by reducing the pressure drop and improving airflow.
Fiberglass Composite Filter Bags are a critical component in industrial air pollution control where high temperatures and aggressive operating conditions are present. They are designed to filter out particulates from industrial exhaust streams while maintaining performance and reliability over time.