PTFE Polyester Needle Punched Felt Membrane Filter Bags is a filter element used in industrial dust removal systems, mainly made of polytetrafluoroethylene (PTFE) fiber. PTFE is a polymer material with excellent high temperature resistance, corrosion resistance and chemical resistance, so PTFE dust filter bags perform well in the treatment of high temperature, highly corrosive gases and industrial waste gas containing strong acids and alkalis.

●Main features of PTFE Polyester Needle Punched Felt Membrane Filter Bags:

High temperature resistance: PTFE materials can withstand higher temperatures, generally up to about 240°C, suitable for high temperature conditions.
Strong corrosion resistance: PTFE has good resistance to most chemical media such as acids, alkalis, solvents, etc., and is suitable for treating waste gas containing corrosive gases.
Low friction coefficient: PTFE has a smooth surface, dust is not easy to adhere, the cleaning effect is good, and the filter bag has a long service life.
Excellent filtering performance: PTFE dust filter bags can efficiently filter fine particles and achieve a higher dust removal efficiency.

●Application areas:

Flue gas desulfurization and denitrification in power plants
Waste gas treatment in chemical plants
High-temperature dust-containing gas filtration in cement plants, blast furnaces, etc.
Dust removal in the pharmaceutical and food industries
In general, PTFE dust filter bags are a high-performance filter material suitable for high-temperature and highly corrosive environments, and are widely used in various industrial dust removal equipment to protect the environment and equipment safety.

●Company Introduction:

Jiangsu Dongfang Filter Bag Co., Ltd. is an enterprise integrating R&D, production, sales, technical support and service, covering an area of ​​90,000 square meters. It has 13 production lines imported from Germany, including Autefa, Truetzschler, Karl Mayer, Etten hanging systems, high-speed needling machines, etc. It currently has 220 employees and an annual production capacity of 12 million m².

●Factory appearance:

●Industry Applications:

●FAQ:

Q. What are the applicable industries for high-temperature dust removal filter bags?
A.1. Dust removal at the end/head of cement kiln
2. Metallurgical steel sintering machine, blast furnace gas purification
3. Waste incineration power plant
4. Dust removal of thermal power boilers
5. Chemical, coking, carbon black production
6. Asphalt mixing station

Q. What are the precautions for filter bag installation?
A.1. Ensure that the bag mouth and the flower plate are tight and leak-free
2. The frame is smooth and burr-free to avoid scratching the filter bag
3. The filter bag is hung vertically and cannot be twisted or folded
4. Perform a pulse test after installation to check the sealing
5. Avoid dust and moisture in the installation environment

Q. How to determine whether the high-temperature filter bag needs to be replaced?
A.1. The pressure difference continues to increase or suddenly decreases
2. The chimney emission concentration exceeds the standard
3. System alarm (such as the differential pressure is too high)
4. The filter bag is found to be hardened, cracked, shrunk, and deformed during maintenance
5. The filter bag becomes brittle, powdered, and the appearance is seriously damaged