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Product Name:Needled Felt Filter Bag
Item No.: 2004
Description:The compound glass fiber and synthetic fiber needled felt is made with a certain amount of synthetic fiber blended into the felt. Synthetic fiber has stronger interlocking capability. Compared with pure glass fiber needled felt, the peeling strength between felt and base fabric and friction resistance has increased 3 or 4 folds. Thus its service life is strikingly prolonged. It It is mainly used for cement and carbon black industries.
The synthetic fiber needled felt is made from P84, PPS, Kermel and Metamax. It is mainly used for dust separation of coal-fired boiler and precious metal recovery in non-ferrous metallurgy.
TABLE 1: Properties of Needled Fiberglass Felt
| Type |
ENWn1050 |
ENWn850 |
| Mass(g/m2) |
1050 |
850 |
| Tensile Breaking (N/25mm) |
Warp |
>1400 |
>1200 |
| Weft |
>1400 |
>1200 |
| Permeability (cm/s) |
15~40 |
15~40 |
| Service Temperature(oC) |
<=260 |
<=260 |
| Recommended Air Flow (m/min) |
<1.0 |
<0.8 |
TABLE 2 Properties of Compound Needled Felt
| Type |
E-P84MN1050,E-PPSMN1050, E-MMN1050, E-KMN1050 |
E-P84PSMN850,E-PPSMN850, E-MMN850, E-KMN850 |
| Mass(g/m2) |
1050 |
850 |
| Tensile Breaking (N/25mm) |
Warp |
>1400 |
>1200 |
| Weft |
>1400 |
>1200 |
| Permeability (cm/s) |
15~45 |
15~45 |
| Service Temperature(oC) |
E-P84,<=260;E-PPS,<=290;E-M,<=220;E-K,<=260 |
| Recommended Air Flow (m/min) |
<1.2 |
<0.8 |
TABLE 3. Properties of Synthetic Fiber Needled Felt
| Type |
PPS |
P84 |
Metamax |
Kermel |
| Mass (g/m2) |
500 |
500 |
500 |
500 |
| Tensile Breaking Strength (N/50mm) |
Warp |
>600 |
>600 |
>600 |
>600 |
| Weft |
>1000 |
>1000 |
>1000 |
>1000 |
| Tensile Breaking Elongation (%) |
Warp |
<= 30 |
<= 30 |
<= 30 |
<= 30 |
| Weft |
<= 50 |
<= 50 |
<= 50 |
<= 50 |
| Permeability (cm/s) |
15~30 |
15~30 |
15~30 |
15~30 |
| Surface finish |
Fluff burning, heat rolling, heat set, chemical finish |
| Service Temperature (oC) |
<= 190 |
<= 260 |
<= 200 |
<= 220 |
| Recommended Air Flow (m/min) |
<1.5
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TABLE 4. Properties of Different Fibers
| Fiber type |
Fiber property |
Unsuitable for |
| Glass fiber |
Temp resistance, dimension stability, high breaking strength, poor folding and friction resistance |
HF acid, steam |
| PPS |
Sulfur and acid resistance, poor antioxidation |
O2content higher than 15%(Vol), NOx higher than 600mg/Nm3 |
| P84 |
Temp. resistance, irregular foliated cross section, high filtration efficiency, poor water solubility |
High pH value, wet air condition |
| Metamax |
Good antioxidation, poor water solubility and SOx |
Steam and SOx |
| Kermel |
Anti chemical property, anti acid, good anti water solubility |
High pH value, wet air condition, water vapor SOx |
Catalogue download:
Needled Felt Filter Bag
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