Polyester Needle-Punched Felt

 

Polyester Needle-Punched Felt is the Main Filter Material in Bag Dust Collectors. It Adopts Structural Non-Woven Needle-Punched Technology to Comb Polyester Staple Fibers and Lay Them in a Web, Then Arrange The Fibers in an Interlaced Space and Needle-Punch Them Into Felt.

 

Polyester Needle Felt is the main filter material in bag filter. It adopts the structured non-woven needle-punched technology process. The polyester staple fibers are combed and laid on the fine fiber cloth with staggered spatial arrangement and relatively uniform gap time distribution, and then needle-punched into felt. This filter material has high strength, good elasticity and recovery performance, stable fabric design size, good wear resistance, large porosity, good air permeability, long product life, good dust removal control effect, and good mechanical system performance and acid and alkali resistance at room temperature (below 130°C). Due to the low cost of producing polyester, polyester needle felt is the most cost-effective filter medium at low temperature.

 

Polyester Needle Felt

It has the advantages of high porosity, good air permeability, high dust removal efficiency and long service life. It is unique to ordinary felt filter cloth. Its temperature resistance level is moderate and can reach 150°C instantly. It has moderate acid and alkali resistance, and it has very good wear resistance. Polyester needle felt is made of 0.8-1.5D or finer fibers.

Compared with filter cloth produced by conventional polyester fiber, this product has the following advantages: the filter cloth pore size is reduced, the porosity is high, and the filtration accuracy is high; the base cloth adopts high-strength low-stretch fiber yarn, and the strength is greatly improved; the acid and alkali resistance is enhanced; the hydrolysis resistance is improved; the surface treatment is smoother, the running resistance is reduced, and the dust removal performance is improved; the surface filtration efficiency is improved; it is an excellent filter material in the polyester series.

 

 

Polyester Needle Felt Room Temperature System Dust Removal Uses Cloth Bags

Polyester needle felt room temperature dust bag (surface PTFE composite) anti-corrosion filter bag can be singed, calendered, waterproof and oil-proof, PTFE impregnated, coated, and laminated according to the needs of the product. Effectively improve the chemical stability, anti-condensation, easy-to-clean dust and air permeability of polyester needle felt, and achieve excellent results in emission requirements.

Using first-class production equipment and advanced manufacturing processes, operating conditions and requirements, various denier fibers are mixed to produce high-filtration polyester filter materials. Singeing, calendering, water-repellent oil, PTFE impregnation, coating, and coating can be processed according to the needs of the product.

 

Antistatic Polyester Needle Felt Bag

Polyester needle felt bag is one of the more ideal antistatic filter materials at present. The anti-static line is a dust bag introduced during the production process. It has anti-static properties and is often used for dust purification in chemical plants, or dust purification in flour mills, coal dust purification, such as dust, smoke and other environments above, low, in the case of open flames, sparks, static electricity and other explosive conditions, in this case, use anti-static dust bags to eliminate the static electricity in the dust, use the entire dust removal process, reliable.

 

Polyester Needle Felt Waterproof and Oil-Proof Dust Bag

Polyester needle felt water-repellent and oil-proof dust bag can effectively prevent water and various oily dirt from adhering to each other. Compared with ordinary filter materials, it can not only have water-repellent and oil-proof properties, but also has anti-caking and easy peeling properties for dust enterprises. For students entering a bag dust collector, the dust mainly contains more water and oily systems as well as hygroscopic and deliquescent dust. When the dust passes through the surface, it may cause the formation of a water film, thereby continuously increasing the adhesion.

 

 

Coated Polyester Dust Bag

The coated dust bag has a smooth and chemical-resistant surface, which is laminated to the surface of a common user filter material, and all dust enterprises are retained on the surface of the membrane to achieve surface information filtration; it has excellent chemical structure stability; and the coated needle felt filter bag has the advantages of high gap space, good air permeability, high dust collection efficiency, long service life, etc., which are the essential dust collector accessories for dust collectors.

The needle felt filter bag is also heat-resistant, acid-resistant, and alkali-resistant, and its wear resistance is very good. The working mechanism of the bag filter is that the dust-containing flue gas passes through the data filtering function material at the same time, and the dust particles are filtered down. The filtering operation material captures coarse dust mainly by inertia. The quality of the dust removal control effect of the bag filter is related to the analysis of various influencing factors, but the main problem depends on the filter material. The fabric and design process of the filter bag should try to choose the pursuit of economical and efficient use of filtration, which is easy to produce dust stripping and durable effect.

 

Coated Needle Felt Bag

The filter medium is characterized by surface filtration, which can improve the filtration efficiency and improve the problems of increased filtration pressure and high fine dust emission concentration that often occur in traditional filtration methods. The anti-static dust bag technology is very perfect, the filter bag surface has a thin film adhesion, and the anti-static wire has very good anti-static function.

 

During the operation of the bag filter, due to the dust in the gas containing more water and oil, as well as the hygroscopicity and deliquescent nature of the dust, it is possible to form a water film or oil film on the dust surface to increase adhesion.

 

Especially when the high-temperature gas is in a high humidity state, due to the cooling effect and condensation of the external gas. It will not only cause the collected dust to scale or even clog on the bag surface, but also corrode the structural material, increase the running resistance of the bag filter, and directly affect the normal operation of the bag filter.

 

Three-Proof Needle Felt Dust Bag

The three-proof of the needle felt dust bag refers to waterproof, oil-proof and anti-static. That is, on the basis of antistatic needle felt, waterproof and oil-proof functions are added, and conductive fibers or stainless steel conductive materials are added to the chemical fibers used to produce needle felt.

The three-proof dust bag has certain advantages, that is, the surface is smooth, easy to remove dust, and the running resistance is low. The air dust in the operating dust collector contains more moisture and grease, hygroscopicity and soluble dust, making the dust surface difficult to clean. Compared with ordinary filter bags, this kind of needle felt combines the advantages of waterproof and antistatic needle felt, not only has the characteristics of water and oil repellency, but also has antistatic effect.

It is suitable for occasions with high moisture content, such as coal injection in blast furnaces of steel plants, coal transportation systems in cement plants and power plants, etc.

 

 

Polyester Needle Felt

dust bag, ordinary dust bag, room temperature dust bag, this dust bag has the advantages of high porosity, good air permeability, high dust collection efficiency, and long service life of ordinary felt filter cloth used in bag dust collectors. Because of its moderate temperature resistance, up to 150°C, moderate acid and alkalinity resistance, and very good wear resistance, it has become a variety of felt filter materials used in the most. The surface treatment method is different according to the industrial and mining conditions. The dust collector bag requires singeing, calendering, or coating.

The surface of the coated polyester dust bag is smooth and resistant to chemicals. It is laminated to the surface of ordinary filter materials, and all dust is retained on the surface of the membrane to achieve surface filtration; it has excellent chemical stability; and the coated needle felt filter bag has the advantages of high interstices, good air permeability, high dust collection efficiency, and long service life of ordinary felt filter cloth. It is a necessary dust collector accessory for dust collectors.

Needle felt filter bags are also heat-resistant, acid-resistant, and alkali-resistant, and have very good wear resistance. The working mechanism of the bag filter is that the dust-containing flue gas passes through the filter material, and the dust particles are filtered down. The filter material captures coarse dust mainly by inertia. The dust removal effect of the bag filter is related to many factors, but it mainly depends on the filter material. The fabric and design of the filter bag try to pursue high-efficiency filtration, easy dust removal and durability.

The coated needle felt bag, the filter material is characterized by surface filtration, which can improve the filtration efficiency and improve the problems of increasing filtration pressure and high fine dust emission concentration that often occur in traditional filtration methods. The dust bag coated anti-static dust bag has perfect technology, a thin film is attached to the surface of the filter bag, and the anti-static function of the anti-static wire is very good.

Water-repellent and oil-proof needle-punctured filter bags During the operation of bag dust collectors, for dust in the gas that contains more water and oil, as well as hygroscopic and deliquescent dust, a water film or oil film may be formed on the dust surface to increase adhesion, which helps to capture dust but will make dust cleaning difficult.

Especially when the high-temperature gas is in a high-humidity state, condensation occurs due to the cooling effect of the external gas. This can not only cause the captured dust to scale on the surface of the filter bag, or even clog it, but also corrode the structural materials, increase the operating resistance of the dust collector, and directly affect the normal operation of the bag dust collector.

 

 

Needle Felt Filter Bag (dust bag) is a key part of the operation of bag dust collector. The fabric and design of needle felt filter bag try to pursue high-efficiency filtration, easy dust removal and durability.

Needle felt filter bag has the advantages of high gap space, good air permeability, high dust collection efficiency and long service life, which are unique to ordinary felt filter cloth. Its temperature resistance level is moderate, which can reach 150℃ instantly. It has moderate acid and alkali resistance and very good wear resistance.

Product Parameters:

Weight: 500g/m2

Material: Polyester/polyester filament base cloth

Thickness: 1.75mm

Air permeability: 16m3/m2.min

Warp tension: >1100N/5 20cm

Weft tension: >1400N/5 20cm

Warp elongation: <25%

Weft elongation: <45%

Use temperature: ≤130℃

Post-processing: Singeing, calendering, heat setting

 

Performance parameters of coated polyester needle felt dust bag:

1. Air permeability: 2~5m3/m2min;
2. Dynamic resistance: ≤180Pa;
3. Filtration efficiency: ≥99.999%;
4. Film fastness: ≥0.03MPa;
5. Recommended filtration wind speed: ≤1.5m/min;
6. Working temperature: ≤120℃;
7. Suitable dust collector type: pulse;
8. Lamination process: hot pressing lamination.

The surface of the coated polyester needle felt dust bag is compounded with a layer of microporous polytetrafluoroethylene (PTFE) film, which has the characteristics of smooth surface, waterproof and breathable, easy to clean, high filtration efficiency, low running resistance, low energy consumption, long service life, and truly realizes “surface filtration”.

The coated polyester needle felt dust bag adopts non-woven needle punching process, and is made by heat setting and other treatment methods. It is widely used in industrial dust collection, smoke control and other aspects.

The coated polyester needle felt dust bag has good air permeability. After heat treatment, the surface is flat and smooth, not easy to deform and easy to clean. The polyester needle felt filter material after waterproof and oil-proof treatment has waterproof properties. When it is used in smoke with high moisture content or a small amount of oil, it can prevent the bag from sticking and extend the service life.

Microporous film laminated filter material Microporous film laminated filter material (referred to as coated filter material) is a polytetrafluoroethylene expanded into a microporous film, which is laminated on various high-temperature or normal-temperature filter materials with a special process to make it a new type of filter material. Features of membrane filter material High filtration efficiency: 99.99% dust removal efficiency, near zero emissions.

Low running resistance: The coated filter material has uniform micropores and non-stickiness of the filter membrane, so that the dust penetration rate is close to zero. When the deposited on the surface of the membrane filter material reaches a certain thickness, it will automatically fall off. Easy to clean, so that the filter pressure is always kept at a very low level, and the air quality is always kept at a very high level.

Wide range of applications: After the microporous film is laminated with various filter materials, it has the characteristics of acid and alkali resistance, high temperature resistance, high humidity resistance, etc. (especially for dust with strong hygroscopicity and easy adhesion and hardening, it has good peeling properties).

Suitable for various industrial dust purification and material recovery. Improve the ventilation capacity of dust removal equipment, reduce the pressure difference, reduce the power consumption of the fan, reduce operating costs, and extend the life of the filter bag.