SFFILTECH is a brand supplier in dust collector bag house filtration, liquid bag filter filtration, and HVAC filtration systems.

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SFFILTECH food grade pp filter bag for food flour

Discover the versatility of Polypropylene (PP) filter bags, meticulously designed for industrial excellence. From the resilient PP fiber filter bags, providing effective chemical resistance, to high-temperature PP filtration solutions, we offer a comprehensive range. Our commitment extends to custom PP filter bags tailored to unique requirements, ensuring precision in dust collection and membrane applications. Embrace the superior performance of anti-static PP bags, enhancing safety in various industrial settings. With a focus on quality and adaptability, our PP filter bags stand as reliable solutions for a spectrum of industrial filtration needs.

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Two factors effect the choice of filter bags

Temperature: As the main component of dust collector, it is very important whether selected filter bag adapt to the flue gas temperature. Such as, the heat resistance of filter material exceeds the flue gas temperature too much, which will cause the waste of high temperature filter material as well as big investment in equipment. If it is lower than that of flue gas, it is possible to cause the burning of bag. So how to select the filter material according to the flue gas temperature? It can be divided into the following according to the temperature: normal temperature filter material: below 130 degrees Celsius, medium temperature filter material 130~180, high temperature filter material 180~280.

Flue gas composition: It includes the content of dust, specific gravity, particle size, viscosity or not, the water content in the flue gas and other parameters. All of these decide the way of cleaning, filter bag material treatment,filtration velocity. Usually, if the dust is dense, sticky and light, we usually choose pulse bag house and pulse bag filter. In addition, the filtration velocity is control more than 1.2m /min, sometimes 1m /min. As well as, the Filter material treatment is generally membrane, water and oil repellent, anti - static, oriented anti adhesive treatment.

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.

Dust Separation Procedure	(g/m2) Weight	Air Permeability
Dust Separation Procedure	(g/m2) Weight	mm/s @200Pa	l/(dm²min) @200Pa
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
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	Needle punch felt
Fiber Composition	100% PP
Scrim Composition	100%PP
Felt Area Weight	450g/m2
Thickness	1.7mm
Density	0.26g/cm3
Mean Air Permeability	140L/dm2.min
Breaking Strength-MD(warp)	≥1200 N/5cm
Breaking Strength-CMD(weft)	≥1200 N/5cm
Breaking Elongation(200 N/5cm)-MD(warp)	＜5%
Breaking Elongation( 200N/5cm)-CMD(weft)	＜5%
Dry Shrinkage (150℃, 90min)	1%
Blasting strength	＞300 N/cm2
Operating Temperatures	＜90℃
Continuous	90℃
Recommended Maximum Surge	100℃
Finish	Heat set, singed, calendared W/O Repellent

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	300, 350, 400, 450, 500, 550, 600
Most commonly used dimensions	133mm1500mm, 133mm2000mm, 133mm*2500mm
Most commonly used weight	400g, 450g, 500g
We can customize diameter, length, and weight for you

Application

In terms of liquid filtration, polypropylene needle felt filter bags are usually used with plate frame filter press, vacuum suction filter, bag filter, centrifugal filter and other liquid-solid separation equipment. With good dimensional stability, high strength, long service life and other characteristics, it also has small resistance, easy cleaning and other unique advantages. In mineral processing, coal preparation, petroleum, chemical and other industries, where it is necessary to filter small particles and ensure filtering, polypropylene needle punched felt has far superior performance than traditional woven filter materials.

Polypropylene needle punched filter felt is mainly used in the liquid-solid separation fields of metallurgy, mining, petroleum, chemical industry, chemical fiber, medicine, food and other industries.

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Company Advantages

· The production of SFFILTECH filter bag dust collector is in compliance with the accepted international standards.

· The product has gone through the stringent quality check under the supervision of qualified professionals to ensure premium quality.

· SFFILTECH has been highly recommended not only the good quality of filter bag dust collector but also the professional service.

Company Features

· We are the leading manufacturer and supplier of superior quality filter bag dust collector that is available in numerous specifications.

· We have cultivated a professional team of management including the R&D team and quality check team. Their expertise in the filter bag dust collector industry helps us bring excellent quality with competitive price to our customers worldwide.

· SFFILTECH strives to provide quality service for every customer. Check it!

Application of the Product

SFFILTECH's filter bag dust collector can be applied to different fields.

With professional service spirit, SFFILTECH always provides customers with reasonable and efficient one-stop solutions.

we welcome custom designs and ideas and is able to cater to the specific requirements. for more information, please visit the website or contact us directly with questions or inquiries.