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What is the knowledge of PTFE dust bag?

Time: 2022-09-23

PTFE is the abbreviation of polytetrafluoroethylene, which has excellent chemical stability and is commonly known as “the king of plastics”. PTFE is a macromolecular linear structure, its crystalline melting point is 327 ° C, it can be used in the range of -180 ° C ~ 260 ° C for a long time, it is resistant to acid and alkali, corrosion resistance; it can resist oxidation and surface dirt, and it is not brittle. The surface free energy of PTFE dust bag macromolecules is very low, and it has a high degree of non-adhesion and a very low coefficient of friction. The dust bag itself does not break or burn, and its “Limiting Oxygen Index” (LOI) is as high as 95%. At the same time, it does not hydrolyze and is more resistant to vapor penetration than almost any known material. It maintains excellent physical and chemical properties throughout its lifetime. This kind of fiber has excellent chemical stability, no aging, poor physical strength, poor dimensional stability at high temperature, and high price. This filter material should be able to be used in waste incineration for a long time.

Shanghai Sanfan Industrial’s high temperature and corrosion resistant PTFE needle-punched felt dust removal cloth bag is made of 100% PTFE fiber through needle punching or spunlace on PTFE base cloth. No other raw materials and additives are added, and PTFE is not changed. (PTFE) original properties. Therefore, PTFE needle felt has high temperature resistance, strong acid and alkali resistance and other corrosive gases, and has good abrasion resistance, incombustibility and good insulation and heat insulation.

PTFE needle-punched felt dust filter bags are widely used in urban waste incineration dust collection, chemical dust removal and other harsh working conditions. It is resistant to acid, alkali, and any corrosive gas, and has high filtration accuracy. It is an ideal dust bag for waste incineration.

The mechanical properties of PTFE dust bag PTFE material are relatively soft. Has very low surface energy. PTFE has a series of excellent performance properties:

High temperature resistance: long-term use temperature of 200~260 degrees;

Low temperature resistance: still soft at -100 degrees;

Corrosion resistance: resistant to aqua regia and all organic solvents;

Weather resistance: the best aging life in plastics;

High lubrication: has the smallest coefficient of friction (0.04) in plastics;

Non-stick: Has the smallest surface tension in solid materials and does not stick to anything;

Non-toxic: It is physiologically inert; it has excellent electrical properties and is an ideal Class C insulating material. A thick layer of newspaper can block high voltage of 1500V; it is smoother than ice.

Shanghai Sanfan Industry-PTFE dust bag Manufacturer

Shanghai Sanfan Industry chooses 100% PTFE dust bag with the following advantages

1. Adapt to the new standards issued by the national environmental protection and the increasing demands of the public for environmental requirements.

2. An effective way to control dioxins. The current national standard for dioxin emission is 1ng-TEQ/Nm3, and the local standard in developed regions such as the Yangtze River Delta has been raised to 0.1ng-TEQ/Nm3. Therefore, it is imperative to use professional waste incineration dust removal bags – PTFE dust removal bags.

3. It can ensure that the system runs in the safest and stable state. According to the survey, among the fifty-odd waste power plants currently in operation, the use of waste incineration and dust removal bags is not optimistic. The reasons for operation and operation management are complex and diverse, and the 100% PTFE dust bag has strong adaptability to the working conditions and can ensure long-term stable and safe operation.

4. Save the cost control of investors. The operation stability and long life of the 100% PTFE dust filter bag can reduce the labor cost of changing the bag and save the cost of production stoppage of the boiler due to changing the bag, showing a very high application value.

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