P84 Polyimide needle felt filter bag

P84 Polyimide needle felt filter bag

Categories:

Product : P84 Polyimide needle felt filter bag

Application : Applied for kiln /raw mill and grate cooler dust collection of cement production line with capacity from 1000 to 12000tpd

Working condition : High temperature

Apply temperature : ≤240℃,peak value: 260℃

Dust content inlet : ≤1500 g/m³

Performance : ≤10 mg/Nm³

Warranty : 3 years

Contract : EP/EPC

Delivery : Sea/air/inland transportation

Payment terms : T/T, L/C & Others

Description
Product Selection

Working temperature(℃):240

Peak temperature(℃):260

Dust content(g/m³):200、500、1000、1300、1500

Diameter(mm):115、120、125、130、145、150、155、160

Length(mm):2000、2450、3000、3200、3800、4800、6000、7000、8000

Technical Data
Specification Data
Material P84 Fiber
Weight 550 g/m²
Thickness 2.0-2.2mm
Mechanical treatment Heat setting, singe and calendaring
Chemical treatment PTFE impregnating
Air permeability 10-15 m²/m³/min
Break strength Warp: ≥900 N/5cm Weft: ≥1200 N/5cm
Break elongation Warp:≤35% Weft: ≤50%
Working temperature ≤240℃
Peak temperature 260℃
Anti-acid Excellent
Anti-alkali Excellent
Anti-oxidation Good
Anti-abrasion Moderate
Resistance to hydrolysis Good
Product Features

High Temperature Resistance & Waterproof Performance

Excellent Filtration & Surface Area

Thermal Film Coating for Ultra-Low Emissions

Precise Stitching for Leak-Free Sealing

Manufacturing Process

Needling process

Carding short fibers to open completely
Overlapping net with good continuity
Proper depth of pre needling to avoid damaging the strength
The felt has good adhesion after main thorn and shaving

Post process

The corrosion resistance of the fabric can be improved by chemical impregnation, extrusion, de-hydration, drying, sintering and treatment
Stretching and setting is the guarantee the quality of filter material
Reasonable control of high temperature hot rolling and setting temperature

Cutting process

The slitter automatically cuts off, neat, stable size, no deviation
The slitter is used to cut, which provides the premise guarantee for the stability of bag size

Sewing process

Strictly confirm to Sewing standard
Sewing needle distance. within 100mm±2
Suture width: 22- 25mm.
Inner diameter deviation: ±1mm
High quality high temperature resistant, corrosion-resistant and high strength sewing thread is selected for middle three stitch

Quality Control

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