SFFILTECH black white high temperature woven fiberglass filter bag for cement chemical industry
Product description
Glass fiber woven felt bag is a kind of filter material with reasonable structure and good performance. This filter bag not only has the advantages of glass fiber fabric, such as high temperature resistance, corrosion resistance, dimensional stability, minimal elongation and shrinkage, and high strength, but also has a single fiber, three-dimensional micro porous structure, and high porosity. Compared with other high-temperature resistant chemical fiber felt filter bags, it has the special advantages of low price and higher temperature resistance, but its running resistance is higher than that of ordinary chemical fiber high-temperature filter materials.
What is a fiberglass filter bag?
Fiberglass filter bags represent a cutting-edge solution in industrial filtration, leveraging the exceptional properties of fiberglass fibers. Renowned for their high tensile strength, thermal resistance, and chemical inertness, fiberglass filter bags excel in diverse applications within industrial filtration systems. These bags, integral to dust collectors and air pollution control equipment, play a pivotal role in mitigating environmental impact. The robust fiberglass filter media ensures effective particle capture, making them ideal for high-temperature environments, industrial processes, and flue gas treatment. Their versatility extends to applications in industrial dust collection, environmental protection, and gas filtration, where they demonstrate longevity and efficiency. Fiberglass filter bags, with their advanced filtration capabilities and durability, stand as a cornerstone in the quest for cleaner and healthier industrial environments.
Performance of fiberglass filter bag
Product description
Glass fiber filter cloth is made of the fiberglass yarn, with special treatment like graphite, silicon, ptfe dipping, against acid treatment and other chemical treatment. It is an ideal high temperature resist filter cloth the fiberglass filter bags are widely used in industrial dust clean area, bag house, air pollution and valuable dust recycling, etc.
The performance of woven glass fiber filter media the performance and service life of glass fiber filter media vary with the type of yarn, fiber diameter, twist, density and fabric structure. The influence of fabric structure on filter material performance is as follows.
① Wear resistance: Plain>twill>forged grain.
② Softness: Forged grain>twill>plain grain.
③ Void ratio: Forged grain>twill>plain grain
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
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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
|
No. |
Material |
Weaving type |
Weight (9/m2) |
Air permeability (cm3 /cm2/s @ 127Mpa) |
Tensile Strength |
Finish |
Application |
|
|
Warp |
Weft |
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1 |
E-glass (T) |
Double twill |
760±20 |
2-5 |
>2400 |
>2000 |
PTFE Membrane |
Cement industry: 2.Gases such as SO, NO, CO, CO produced in the calcination process of pulverized coal for calcination; 3.The exhaust gas discharged from the cyclone reaches a high temperature of at least 320°C and is dry; 3.The dust reaches a density of 40-130mg/Nm3, with 90% in a dust particle diameter less than 10pm; with a NO content of less than 250PPm; a NO content of 100- 1700mg/Nm3; 4. CO and CO2 contents sometimes fluctuate with the calcination sufficiency of pulverized coal; |
|
2 |
E-glass (T) |
Double twill |
760±20 |
2-5 |
>2400 |
>2000 |
PTFE Membrane |
|
|
3 |
E-glass (T) |
Double twill |
760 ±20 |
<30 |
>2400 |
>2000 |
PTFE Dipping |
|
|
4 |
E-glass (T) |
1/3 twill |
340±15 |
2-5 |
>1300 |
>800 |
PTFE Membrane +Acid resistance |
Iron alloy industry 1. High and significantly fluctuated temperature of fume, unstable working conditions 2. Light and fine dust, with 90% of ferrosilicon dust in a particle diameter ≤1μm 3. High adhesion of dust tends to cause dust cake 4. The filtration medium is required to be anti-corrosive, heat-resistant with good dust-cleaning performance. |
|
5 |
E-glass (T) |
1/3 twill |
450±15 |
<33 |
>2000 |
>1000 |
PTFE dipping, silicion and graphite |
|
|
6 |
E-glass |
Double weft |
550±15 |
<45 |
>2000 |
>2000 |
graphite |
|
|
7 |
E-glass |
Double weft |
550±15 |
2-5 |
>2000 |
>2000 |
PTFE dipping + graphite |
|
|
8 |
C-glass |
Double weft |
550±15 |
<45 |
>2000 |
>2000 |
graphite |
|
|
9 |
E- glass+ptfe |
Double twill |
820 ±2 |
2-5 |
>2000 |
>2000 |
PTFE membrane |
Waste incineration industry 1. Waste contains complex and seriously harmful components, with high requirements for treatment; 2. Unstable temperature and amount of fume, at a temperature ranging between 140°C-260°C 3. High temperature of fume up to 60%, tending to cause bag sticking 4. The fume contains dust of high density up to 50g/m3, being light and fine 5. The fume has a relatively high content of corrosive substance, causing rise in acid dew point |
|
10 |
Refrasil |
Double twill |
760±20 |
<30 |
>2400 |
>2400 |
PTFE dipping |
|
|
11 |
Refrasil |
Double twill |
760±20 |
2-5 |
>2400 |
>2400 |
PTFE membrane |
|
|
12 |
E-glass*ptft |
Double twill |
820+20 |
2-5 |
>2000 |
>2000 |
PTFE membrane |
Power industry 1. Relatively high density of dust at the inlet of deduster 2. The fume has a high content of components such as SO2, NO, O2, O3, which have a strongly destructive effect on the filtration medium 3. Fume amount is exposed to significant fluctuation with the changes in coal type and power generation load 4. Filtration velocity is generally about 1.0, the dust cleaning is mostly conducted by means of pulsed dust cleaning or rotary back blow |
|
13 |
Refrasil |
Double twill |
760±20 |
<30 |
>2400 |
>2000 |
PTFE dipping |
|
|
14 |
Refrasil |
Double twill |
760±20 |
2-5 |
>2400 |
>2000 |
PTFE membrane |
|
|
15 |
Refrasil |
Double twill |
760±20 |
<30 |
>2400 |
>2000 |
Acid resistance |
|
|
16 |
Refrasil |
Double twill |
760 ±20 |
2-5 |
>2400 |
>2000 |
PTFE membrane + Acid resistance |
|
|
17 |
E-glass (T) |
1/3 twill |
480±15 |
<30 |
>2000 |
>1200 |
Acid resistance |
Chemical industry 1. With a high initial density, carbon black is a nanoscale substance with a small particle diameter, specific gravity and strong adhesion. 2. The working temperature of main filter ranges between 270°C-280°C, that of waste filter is around 250°C. 3. The oil pre-heater has a working temperature >350°C, about 400°C, which requires cooling by water mist spray, while with a large amount of CO, SO2, SO3: contained in fume, it will generate sulfurous acid. 4. Flammable and explosive gas is involved, with a large amount of water vapor, and 1 ton of water sprayed can produce 1600m3 of water vapor 5. Inlet pressure 200pa, outlet pressure 3,500-4,000pa, counter-blowing pressure 5,000pa |
|
18 |
E-glass |
Double twil |
550±15 |
<45 |
>2000 |
>2000 |
graphite |
|
|
Thickness (mm) |
Diameter (mm) |
Length (mm) |
Weight (g/㎡) |
|
1~2.2 |
120, 130, 150, 160, 180, 230, 250, 300 |
2000, 3000, 5000, 6000, 7400, 8000, 10000 |
350, 480, 550, 760, 820 |
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Most commonly used dimensions |
150mm*1500mm, 133mm*2000mm, 133mm*2500mm |
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Most commonly used weight |
550g, 760 |
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We can customize diameter, length, and weight for you |
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Product Description
Cement kiln character
Cement raw material in the decomposition oven is not completely decomposed into caco3 dust
Together with CaO dust during the decomposition of the caco3 produced
For burning pulverized coal produced in the combustion process so2 nox co co2 and other gases
Kiln temperature exhaust gas from the cyclone out of more than 320 degrees drying gas
Dust concentration of dust particle size less than 10um accounted for more than 90%
Sometimes co content according to each of the combustion fluctuate
2. Purification of industrial smoke and dust in power plant boilers burning high sulfur coal with acid, alkali and corrosive chemical gases; PTFE filter bag mainly has the advantages of non-sticking bag, easy dust removal, small running resistance of equipment, long service life, etc.
3. Flue Gas Purification of Blast Furnace Gas in Iron and Steel Smelter. PTFE filter bag is mainly used to solve the corrosion problem caused by chemical gases such as high temperature, high humidity, paste bags below dew point and high-temperature sulfur.
Application
It can be used for a long time under the high temperature of 240 ℃, and the temperature resistance in a short time can reach 280 ℃. It is widely used in the high temperature flue gas filtration of steel, cement, power, non-ferrous metals, garbage incineration, asphalt concrete mixing, chemical industry and other industries. It is suitable for pulse and high-speed reverse blowing dust removal methods, and is the most widely used filter material for high temperature bag filter.
