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Acrylic Filter Bags

Acrylic filter bags have emerged as a versatile and cost-effective solution for many industrial filtration applications. Their exceptional filtration characteristics, compatibility with chemicals, and moderate temperature & hydrolysis resistance make them suitable for diverse industries such as cement, pharmaceuticals, food processing, and textiles.
 
  • Particle Retention
  • Chemical Resistance
  • Temperature Resistance
  • Hydrolysis & Moist Heat Resistance
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Description of Acrylic filter bags

Acrylic filter bags are a type of filter bag made from acrylic fibers, which is a synthetic fiber that is known for its durability, chemical resistance, and heat resistance. As a dust filtration media, acrylic felt has the following characteristics:

Particle Retention —— Acrylic filter bags are highly efficient in retaining particles, thanks to their intricate pore structure. These bags can capture particulate matter of various sizes, ranging from coarse to fine particles.

Chemical Resistance —— Acrylic fibers possess excellent resistance to a wide range of chemicals, making them suitable for filtration applications where aggressive chemicals are being filtered.

Temperature Resistance —— Acrylic filter bags exhibit good thermal stability, allowing them to withstand elevated operating temperatures. They can typically operate in the temperature range of 120°C to 150°C (250°F to 300°F), making them suitable for filtration processes that involve hot gases or liquids.

Hydrolysis & Moist Heat Resistance —— Acrylic fibers have low water absorption properties, enabling the filter bags to maintain their filtration efficiency even in high-humidity environments with mild chemical attacks. Where polyester filter bag is not suitable because of potential hydrolysis, acrylic filter bag offers a combination of abrasion and moist heat resistance, particularly under acid conditions.


In addition to these filtration characteristics, acrylic filter bags also offer a number of other advantages, such as:

Cost-Effective —— Acrylic fabric is relatively inexpensive compared to other high-performance filter media materials, making it a cost-effective solution for a wide range of industrial filtration applications.

Versatility —— Acrylic filter bags can be customized to meet specific filtration requirements, including shape, size, and surface finishes. Additionally, they can be designed to fit different types of dust collectors, allowing for easy installation and replacement.

Long Service Life ——  Acrylic fibers are known for their durability and resistance to degradation, resulting in extended service life. This reduces the need for frequent replacement, saving maintenance costs in the long run.

Resistance to Abrasion —— Acrylic filter bags demonstrate excellent resistance to mechanical stress and abrasion, preserving their filtration efficiency over time, even in demanding industrial environments.

Scrim-supported felt is used exclusively in the production of our acrylic filter bags in order to improve filtration efficiency and extend the filter bag life.


Specification of Acrylic Filter Bags

Fiber Content 100% Virgin Aramid
Weight 550g/m² (16.22oz/yd²)
Thickness 3.00mm (0.118in)
Fabric Construction Needlefelt
Continuous Operating Temperature 130°C (266°F)
Maximum Surge Temperature 150°C (302°F)
Abrasion Resistance Good
Acid Resistance Good
Alkali Resistance Fair
Moist Heat Resistant Excellent
Energy Absorbsion Good
Filtration Property Good
Oxygen (15%+) Excellent


Post-treatment of Acrylic Filter Bags

Acrylic filter cloth can be constructed and treated with various options so that they become best suited for various operating conditions, applications, and industries.

● ePTFE Membrane

Adding an ePTFE membrane to an acrylic filter bag allows the membrane to act as the filter cake. Dust stays on the surface of the membrane and does not get entrained into the fibers of the filter bag, which lengthens the filter bag life. It also reduces wear and tear, lower maintenance costs, and energy costs due to easy dust cake release during the cleaning cycle.

● PTFE Coating

The filter media is coated in a bath or spray of liquid PTFE resin. This is done to protect filter bags. The treatment improves the flex life, heat and chemical resistance, and dust release from the filter bags. This increases the service life and filtration efficiency. PTFE finish is commonly used in applications with corrosive chemical compounds, sticky dust, or high moisture contents.

● Hydro-Oleophobic Coating

This aids in filtration, adds resistance to water and oils, and improves cake release.

● Static Resistant

Helps to ground the filter bag to eliminate sparks that might cause combustion explosions.

● Singe

Singeing is a finishing process where the surface of the filter media is exposed to a flame or hot gas to burn off the fine and straggly fibers in order to provide a uniform and smooth surface area, which improves dusk cake release, enhanced filtration efficiency, and better air permeability.

The singeing process typically involves passing the fabric over an open flame or through a heated chamber. The heat singes off the protruding fibers without damaging the main structure of the fabric. The process parameters, such as speed and temperature, are carefully controlled to achieve the desired level of smoothness and finish.

● Glazing

Glazing, also known as calendering, is the high-pressure pressing of the fabric by rollers to flatten or smooth the surface. Glazing pushes the surface fibers down onto the body of the filter media to increase and uniform surface life, improve stability, reduce shrinkage, and improve dust cake release.


Application of Acrylic Filter Bags


Acrylic Filter Bags Application

Aokai Environtec manufactures high-quality filter bags of virtually any style, configuration, and size for any make of dust collector. We use the in-house custom-designed and manufactured filter media and custom-make the filter bags to your precise specifications to best suit your specific industry, application, and operating conditions. We specialize in designing and manufacturing high-temperature filter media and filter bags. When you choose Aokai, you're choosing uncompromising quality and performance, woven into every stitch. Aokai's advantages include:


Custom-Design & Manufactured Filter Media

Aokai manufactures and stocks hundreds of filter media materials with a complete range of lamination and treatment options. Whether you need filter bags to withstand high temperatures or abrasive, corrosive, and explosive dust, we custom-design and manufacture filter media that best suit your operating conditions.


Experienced in All Major Industries

Aokai serves more than 10,000 customers worldwide in all major industries, such as asphalt mixing, cement, mining & metallurgy, power generation, renewable energy, woodworking, and many other demanding industries. Our engineering teams are experienced and well-trained to handle challenging issues in all major industries.


Custom Made to Precise Specs.

Aokai custom-makes filter bags to your precise specifications, such as dust collector styles, physical configurations, and sizes. We offer a variety of bag top and bottom attachment options ensuring a perfect fit for your equipment.


Expert Craftsmanship

Aokai's skilled technicians utilize cutting-edge sewing techniques and precise finishing touches, creating filter bags that are seamlessly durable and leak-proof. Our filter bags are truly engineered solutions, built to withstand demanding environments and deliver exceptional filtration performance, saving you time, money, and resources.


On-Time Delivery

To ensure on-time delivery, Aokai manufactures everything in-house, including filter media, filter bags, and filter cages. With a five million filter bag per annum capacity, we deliver on time.




Acrylic Filter Bags

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