PPS acid and alkali resistant high-temperature dust removal cloth bag

PPS high-temperature dust removal cloth bag is one of the main types of filter materials produced by our company using PPS polyphenylene sulfide fiber produced in Japan and other countries, and following the production process of other filter felt.

PPS high-temperature dust removal bag is a filtering material made of PPS fiber (polyphenylene sulfide) through three-dimensional needle punching, which can be used for a long time at a temperature of around 190 ℃. PPS fiber, also known as polyphenylene sulfide fiber, has good chemical stability and strength retention characteristics due to its molecular structure. Its effect is particularly prominent in high sulfur flue gas environments, and it is suitable for acidic flue gas filtration environments such as coal-fired boilers, power plants, and garbage incineration.

The outstanding advantages of PPS high-temperature dust removal cloth bags made of polyphenylene sulfide fiber needle punched felt are shown in the following aspects:

1. Good temperature resistance with a melting point of 285 ℃, continuous use at a temperature of 190 ℃, and instantaneous use at a temperature of 230 ℃.

2. The excellent performance of polyphenylene sulfide fiber is superior to NomexConex and Kermel fibers in terms of acid resistance, inorganic acid, acid, oxidant, and other aspects.

3. The oxygen index (LDI) of flame retardant polyphenylene sulfide fibers is 34-35, and this fiber is a non combustible material. Polyphenylene sulfide fiber needle punched felt not only has properties, but also.

PPS dust bag is an ideal filtering material in pulse cleaning dust collectors for filtering natural coal boilers, garbage incinerators, and dust collection treatment of power plant fly ash. PPS fibers have intact strength retention and inherent chemical resistance, which can maintain good filtration performance in harsh environments and achieve ideal service life.

Performance of PPS high-temperature dust removal bag:

1. PPS high-temperature dust removal bag performance: With a high melting point of 285 ℃, it particularly has long-term heat resistance, can be used continuously at a temperature of 190 ℃, and has strong steam heat resistance; Even in high-pressure steam at 160 ℃, it can maintain 90% strength.

2. PPS high-temperature dust removal cloth bag cleaning effect: After singeing and rolling treatment, it can achieve the effect of easy cleaning.

3. PPS high-temperature dust removal bag has good hydrolysis resistance: even when used continuously for 500 hours at 160 ℃ and 79% relative humidity.

4. Chemical resistance of PPS high-temperature dust removal bag: Its outstanding chemical resistance performance is comparable to that of fluorinated fibers. At temperatures of 200 ℃ or less, it can maintain stable chemical resistance to most acids (except for some oxidants such as concentrated nitric acid), alkalis, and solvents.

5. Mechanical characteristics of PPS high-temperature dust removal bag: It is basically the same as polyester in terms of strength, elongation, and elasticity.

6. PPS high-temperature dust removal bag flame retardancy: It exhibits flame retardancy and spontaneous combustion (LOI oxygen index 34-35).

7. Radiation resistance of PPS high-temperature dust removal cloth bags: The resistance to radiation such as lambda rays and neutral wires is significantly improved compared to traditional nylon and polyester.

8. Electrical characteristics of PPS high-temperature dust removal bag: It continuously displays stable electrical characteristics under high temperature, high humidity, and high frequency conditions.

The performance of PPS high-temperature dust removal bags in the following applications:

1. Oxides containing sulfur in fuel or flue gas have been proven to be acid alkali resistant and chemically resistant fibers.

2. In situations where the flue gas contains moisture.

3. Working temperature 190 ℃, short-term working temperature 232 ℃, melting point 285 ℃, oxygen index 34-35.

4. Suitable for situations with an oxygen content of 15% or less.

5. Under industrial and mining conditions at a temperature of 190-232 ℃, PPS filter bags have excellent performance records when using a gas to cloth ratio of up to 5:1 for online cleaning and a gas to cloth ratio of 6:1 for offline cleaning.