SFFILTECH high temperature 450 to 550 gms P84 filter bag for electric power cement steel and waste incineration
Product Description
Fiber shape: Synthesized from biphthalic anhydride and p-phenylenediamine, yellow, with a trilobal fiber cross-section. Under the premise of the same weight and linear density, such a structure greatly increases the surface area of the fiber, which is more beneficial for intercepting dust during the filtration process.
It is obtained from polyimide fiber by needle punching, and its characteristics are remarkable because of its own fiber fineness.
P84 filter material: P84 material is a composite fiber fabric product, mainly composed of polyethylene terephthalate (P84) and polyamide (PA). According to the characteristics of working conditions and usage requirements, different production equipment and manufacturing processes are adopted. Mix P84 fibers with different denier numbers through acupuncture, and then undergo singeing, heat setting, and rolling to produce aramid felt with high filtration performance. Then, sew a traditional P84 filter bag with P84 felt.
What is a P84 filter bag?
P84 filter bags, crafted from high-performance P84 fibers, epitomize cutting-edge solutions in industrial filtration. Renowned for their exceptional thermal stability and chemical resistance, P84 filter bags excel in high-temperature environments, making them a vital component in industrial processes and flue gas treatment systems. These polyimide filter bags, designed for industrial filtration and dust collection applications, demonstrate unparalleled effectiveness in particulate matter removal. Leveraging their longevity and robust construction, P84 filter bags play a pivotal role in air pollution control, contributing to environmental protection in diverse industrial settings. Their versatility extends to baghouse filtration and gas filtration, making P84 filter bags a cornerstone for ensuring cleaner and healthier industrial air quality.
Two factors effect the choice of filter bags
Dust Separation Procedure
Different dust separation procedures require different weights and air permeability values for filter media.
Rules:
- The more effective the cleaning process, the more compact and heavier the filter medium can be.
- The higher the emission control standards, the heavier the filter medium should be.
Tops: If these factors are well considered in advance, running cost like electricity for the fan or pressured-air for the cleaning pulses can be saved later on in a great amount.
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Dust Separation Procedure |
(g/m2) |
Air Permeability |
|
|
mm/s @200Pa |
l/(dm²min) @200Pa |
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|
Intermittent Shaking |
300-350 |
667-1000 |
400-600 |
|
Shaking- and reverse air |
350-450 |
417-667 |
250-400 |
|
Low pressure cleaning |
400-500 |
250-583 |
150-35 |
|
Pulse Jet |
500-650 |
83-250 |
90-150 |
Filter bags material character
|
Resistance of Synthetic Fiber to the Influence of Chemicals and to Temperatures |
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Filter Type |
Continuous Temperature |
Peak Temperature |
Resistance to Hydrolysis |
Resistance to Acids |
Resiatance to Alkalis |
Resistance to Oxidation |
PH Value |
Application |
Remark |
|
PP |
90℃ |
95℃ |
Excellent |
Excellent |
Excellent |
Restricted |
1-14 |
Applicable to food, flour, sugar, fertilizer, electroplating and pesticide industries |
Restricted resistance to oxidation, but excellent resistance to hydrolysis |
|
Co-Acrylic |
115℃ |
120℃ |
good |
moderate |
moderate |
good |
6-13 |
Applicable to dergent industry and coal powder collection |
Good resistance to hydrolysis |
|
Co-Acrylic |
125℃ |
140℃ |
good |
good |
moderate |
good |
3-11 |
Applicable to detergent, waste incineration, asphalt, spray dryer, coal mill and power plant industries |
Good resistance to hydrolysis |
|
Polyester |
150℃ |
150℃ |
Restricted |
moderate |
Restricted |
good |
4-12 |
Applicable to mine, limestone, cement, iron and steel induestries,alumina delivery, electrolytic aluminium, non-ferrous metal production, wood processing, food processing and pharmacy industry. |
Good resistacne to oxidation, while limited resistance to acids and alkalis. Serive life will be affected by water content under high temperature |
|
PPS |
190℃ |
200℃ |
Excellent |
Excellent |
Excellent |
moderate |
1-14 |
Applicable to the working conditions with low oxidation gas from coal-fired boiler, waste incineration, metal smelting and chemical industries |
Moderate resistance to oxidation, but excellebnt resistance to acids and alkalis. |
|
M-Aramide |
200℃ |
220℃ |
moderate |
moderate |
moderate |
moderate |
5-9 |
licable tp asphalt, non-ferrous metal production, ceramic, glass industries, Kilin in cement factories and blast furnace in steel factory |
Moderate resistance to oxidation. Characteristics will be influenced by water content under high temperature. |
|
Polyimide |
240℃ |
260℃ |
good |
moderate |
moderate |
good |
3-13 |
Applicable to the working condition with corrosive gas, such as chemical, metal smelting, waste incineration industries, cement kiln and coal-fired boiler |
Excellent resistance to high peak temperature |
|
PTEE |
250℃ |
280℃ |
Excellent |
Excellent |
Excellent |
Excellent |
1-14 |
Applicable to the working condition with high corrosive gas and high temperature, such as chemical industry, coal-fired boiler, waste incineration industry and non-ferrous metal production |
Excellent resistance to all chemical influences. |
Specification
|
Construction |
P84 Needle punch felt |
|
Fiber Composition |
P84 |
|
Scrim Composition |
P84 |
|
Felt Area Weight |
450-550g/m² |
|
Mean Air Permeability |
80-100mm³/m²/s |
|
Breaking Strength-MD(warp) |
>1400N/5*20cm |
|
Breaking Strength-CMD(weft) |
>1200N/5*20cm |
|
Breaking Elongation( N/5cm)-MD(warp) |
<30% |
|
Breaking Elongation( N/5cm)-CMD(weft) |
<30% |
|
Operating temperature |
<260℃ |
|
Recommended Maximum Surge |
300℃ |
|
filtration velocity |
0.8-1.2m/mm |
|
Finish |
PTFE impregnation, film coating and coating |
|
Diameter (mm) |
Length (mm) |
Weight (g/㎡) |
|
120, 130, 133, 155, 180, 200, 250, 292, 300 |
1000, 1500, 2000, 2400, 25000, 2480, 2800, 3000, 3200, 3600, 4000, 4400, 5000, 6000, 8000 |
350, 400, 450, 500, 550, 600 |
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Most commonly used dimensions |
133mm*1500mm, 133mm*2000mm, 133mm*2500mm |
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Most commonly used weight |
450g, 500g |
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|
We can customize diameter, length, weight and material for you |
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Application
P84 filter bag is a high-tech enterprise that produces and develops dust removal filter bags, SCR denigration catalysts, and provides system solutions for industrial atmospheric control. The product dust filter bags (mainly PPS, PTFE, P84 and composite series filter materials) have been widely used in the fields of flue gas dust removal such as electric power, cement, steel, and waste incineration.
