FCLD series dust filter bag

The FCLD series dust filter bag is a high-performance filter element specially designed for industrial flue gas purification and dust control conditions. It is made of various fiber materials such as polyester, polypropylene, PPS, PTFE, and glass fiber, and is made through precision processes such as needle punching, film coating, and impregnation shaping. It has comprehensive characteristics such as high temperature resistance, corrosion resistance, anti-static, and easy dust cleaning. This series of filter bags has a dust removal efficiency of over 99.9%, and is widely suitable for multiple industrial fields such as power, steel, cement, chemical, mining, and grain processing. It is an indispensable core filtering component in bag filters, providing solid guarantees for clean emissions and stable operation in industrial production.

The FCLD series dust filter bags are divided into circular bags and flat bags according to cross-section, and are classified into three categories based on temperature resistance: high temperature type (glass fiber/P84/PTFE, long-term use temperature can reach 260-280 ℃), medium temperature type (PPS/aramid, 190-220 ℃), and room temperature type (polyester/polypropylene, ≤ 120 ℃). The surface of the filter material can be treated with PTFE coating, oil and water resistance, anti-static, etc. The initial resistance is controlled at 80-120Pa, the final resistance does not exceed 1500Pa, and the dust holding capacity is above 250g/m ². Structurally, high-strength base fabric and functional fiber layer are configured, and ultrasonic welding and laminating technology are used. The comprehensive strength of the bag mouth suture is ≥ 1000N, which meets the national standard GB/T6719-2009 and supports non-standard customization to meet the refined filtration needs of different working conditions.

The FCLD series dust filter bags are widely used in coal-fired power plant flue gas dust removal, steel sintering and smelting flue gas purification, cement kiln head and tail dust control, chemical tail gas acid-base dust filtration, mining crushing and screening dust removal, garbage incineration flue gas purification, grain and feed processing dust recovery and other scenarios. In the power industry, PPS and PTFE filter bags can handle high temperature flue gas at 150-300 ℃, with a stable emission concentration controlled below 10mg/m ³; In the field of chemical engineering, acid and alkali resistant filter media can adapt to extreme pH environments; In the mining crushing line, the membrane filter material reduces the emission concentration from hundreds of mg/m ³ to single digit mg/m ³, meeting the ultra-low emission requirements.

The competitive advantage of the FCLD series dust filter bag is that it has a complete material system, covering everything from ambient temperature polyester to high-temperature PTFE, accurately matching various temperature ranges and working conditions; Secondly, the membrane filter material adopts a surface filtration mechanism, which extends the cleaning cycle by 30% to 50% and has a high dust stripping rate; Thirdly, the service life of filter bags can reach 2-4 years, and the total lifecycle cost is reduced by more than 30% compared to traditional filter materials; Fourthly, the needle spacing is 25 ± 1mm, the suture strength is ≥ 1000N, and the structure is reliable; Fifth, it supports multi-functional customization such as waterproof, oil proof, anti-static, and flame retardant, with strong adaptability.

Filter bag damage: It is often caused by high cleaning pressure (exceeding 0.4MPa) or dust abrasion. The pulse pressure should be adjusted to 0.3~0.4MPa, the spraying time should be controlled within 90~100 milliseconds, and wear-resistant filter material should be selected. Filter bag blockage: caused by high filtering wind speed or high dust viscosity, the wind speed needs to be reduced to the design range, and equipment insulation should be done to prevent condensation.

Filter bag detachment: Usually caused by loose spring coils or deformed flower plates, it should be reinstalled to ensure proper clamping and timely repair of the flower plates. Filter bag aging: Fiber brittleness is often caused by over temperature operation. It is necessary to strictly control the flue gas temperature within the tolerance range of the filter bag, regularly check the elasticity, and replace it in a timely manner.