Active Member
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[China]
Address: Jianchuan Road, Minhang Distrcit, Shanghai, China
Contact name:Amily Li
Shanghai Runningfilter Co., Ltd |
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Polyimide P84 Nomex Filter Bag , Felt Dust Collector Bags Flame Retardant
Product Name: P84 High Temperature Resistant Needle-punched Felt
P84 filter bag is a kind of flame-retardant, temperature-resistant and stable fiber filter material. At 240 C, the dust bag is flame-retardant and temperature-resistant.
Temperature stable fiber filter material, high temperature resistance 260 C. The bag is mainly used for dry dedusting of blast furnace gas and filter material of P84 polyimide fiber.
The machine will not change. Optimum high temperature resistance can reach 260 C. P84 fiber filter material has no melting point temperature and is natural golden yellow. P84 polyimide fibers Dimensional filters are not hygroscopic fibre filters (at 65% relative humidity, about 3% water absorption). In addition, P84 fibers are different.
P84 fibers are often implanted on the surface of filter media because of its large surface area and excellent filtration performance.
(Dust-facing side to improve filter performance).
The filter material has three distinct characteristics:
1. Significant Temperature Resistance
Operating temperature is 260 C, but it has safe space to cope with downtime and accidents.
2. Good chemical resistance
The value of P84 filter bags for acid waste gas and alkaline dust has been confirmed in refuse incineration operations in the past decade.
3. Low backwashing pressure and high elastic desliming cake efficiency
The characteristics of P84 are remarkable because of the fineness of the fibers themselves, but also because the irregular cross section of the fibers increases the surface area of the fibers to the maximum.
The micro-pore makes the surface filtration better than the deep filtration. Dust only stays on the surface of the filter felt, but can not penetrate into the filter felt, so the backwashing pressure is low.
The filter cake detachment efficiency has been significantly improved, with excellent collection efficiency of fine particles and small pressure difference. Incineration of asphalt plant, cement plant and waste
Chemicals, liquid bed boilers, coal-fired boilers, etc., have long-term experience in using P84 filter material.
| Composition of Acupuncture Felt | Polyimide Fiber (P84) P84 Base Cloth | Polyimide Fiber P84/Glass Fiber Base Cloth | |||||
| Gram weight(g/㎡) | 450 | 500 | 550 | 800 | 850 | 900 | |
| Thickness(mm) | 2.1 | 2.3 | 2.5 | 2.5 | 2.8 | 3 | |
| Air permeability(㎡/min) | 19 | 15 | 12 | 16 | 13 | 10 | |
| Fracture strength (N/5*20cm) | Meridional direction | 650 | 700 | 800 | 1800 | 1800 | 1800 |
| Zonal direction | 1150 | 1200 | 1300 | 1800 | 1800 | 1800 | |
| Fracture elongation (%) | Meridional direction | <35 | <35 | <35 | <10 | <10 | <10 |
| Zonal direction | <55 | <55 | <55 | <10 | <10 | <10 | |
| Rupture strength(Mpa/min) | 2.55 | 2.5 | 2.4 | 3.2 | 3.2 | 3.2 | |
| Continuous operating temperature(℃) | <260 | <260 | |||||
| Short-term operating temperature(℃) | 280 | 280 | |||||
| Acid resistance | excellent | excellent | |||||
| Alkali resistance | middle | middle | |||||
| Wear resistance | excellent | excellent | |||||
| Hydrolysis stability | good | good | |||||
| Post-processing mode | High temperature hot pressing and singeing | High Temperature Hot Pressing and Burning or Coating | |||||
