classification
 
PPS needle felt
2017-12-7 23:17:25 阅读次数:1161

PPS fiber has high temperature resistance, complete strength retention and inherent chemical resistance, which can maintain good filtration performance and achieve ideal service life in harsh environments. PPS fibers have poor oxidation resistance at high temperatures and cannot be used in cases where the oxygen content is too high. PPS filter felt is an ideal high temperature filter material, which is lower in price than the high temperature filter Metas, and is an ideal substitute for Metas filter.

Our factory imports Japan Toray PPS fiber, and all the indexes of PPS needle felt produced by the factory have reached the international level. For the excellent thermoplasticity of PPS fiber, our factory adopts PPS hot melt bag produced by imported automatic hot melt technology . The bottom, side and collar ring connection method of the filter bag are welded by hot melt method, which avoids the traditional seam filter bag. The side leakage problem caused by pinholes and uneven material, the fiber shedding problem, etc. are all solved by such a full heat fusion welded filter bag. The high-precision wireless seam filter bag uses digital co-location multi-point welding equipment to ensure that the welding at each point remains the strongest and consistent.

PPS needle felt characteristics :

, working temperature 170 °C , short-term working temperature 232 ° C , melting point 285 ° C , limiting oxygen index 34 ~ 35 
2. It can be applied when the oxygen content is 15 % or less. 
3. Sulfur-containing oxides in fuels or sulfur-containing oxides in flue gas have been proven to be resistant to acid-base corrosion and chemical resistance. 
4. Where the flue contains moisture. 
, under the temperature of 190 °C ~ 232 °C industrial and mining conditions, gas cloth ratio of up to 5:1 line cleaning and air cloth ratio of 6:1 for offline cleaning, PPS filter bags have an excellent performance record.

PPS fiber has excellent thermoplasticity, and PPS filter bag can be used to make hot melt bags.

application:

PPS needle felt is one of the main filter materials currently used in the pulse dust cleaning bag type dust collector of coal-fired power plant boilers. PPS filter felt is an ideal filter material for filtering dust-cleaning dust collectors such as coal-fired boilers, garbage incinerators, and power plant fly ash . According to the different requirements of working conditions, our company can apply PPS needles. The felt is subjected to various functional treatments such as water and oil repellent, PTFE impregnation, coating, and film coating.

Material

PPS+PPS fiber base cloth

PPS+ fiberglass base fabric

Weight ( g / m2 )

450

500

550

>800

Thickness ( mm )

1.6

1.8

1.9

2.0

Air permeability ( L / m2 / S )

(m3/m2/min)

150

18

200

15

250

12

200 to 300

8-15

Breaking strength ( N/5 × 20cm )

through

>1150

>1200

>1200

>2000

latitude

>1200

>1300

>1400

>2000

Elongation at break (%)

through

<30

<30

<30

<10

latitude

<30

<30

<30

<10

Breaking tension ( Mpa/min )

2.7

2.60

2.45

3.10

Working temperature ( °C )

≤ 190

≤ 190

Instantaneous operating temperature ( °C )

232

232

Acid resistant

excellent

excellent

Alkali resistance

excellent

excellent

wear resistant

excellent

excellent

Hydrolytic stability

excellent

excellent

Post-processing post-processing method

High temperature hot pressing calendering, singeing

Twilight, singeing

   
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