Polypropylene Needle—punched Felt Bag

　　Polypropylene Needle—punched Felt Bag

　　With excellent acid and alkali resistance, low softening point, it can be used in flue gas temperature below 100°C and high acidity and alkalinity occasions or in the field of liquid—solid separation with high acidity and alkalinity.

　　Weight: 500g/㎡

　　Material: Acrylic polyester /polypropylene yarn

　　Thickness: 2.1 mm

　　Permeability: 12.6m³/㎡ min

　　Radial control force: > 980N/5 x 20cm

　　Latitudinal control force: > 1060N/5 x 20cm

　　Radial control force: <35%

　　Latitudinal control force: <55%

　　Usage temperature: 88℃

　　Post—treatment: singeing or calendering

　　The filter bag is the key component to determine the dust removal efficiency and working temperature of the bag dust collector, and the cost of replacing the filter bag is the main maintenance cost of the bag dust collector. Therefore, the working life of the filter bag is related to the operation state and cost of the dust collector, so it is particularly important to select the appropriate filter material and design the reasonable structure.

　　The selection of filter material should be considered according to the temperature, humidity and chemical characteristics of the gas, the size, weight, shape, ponderability of particles, dust concentration, filtration speed, ash cleaning mode, emission concentration and the working system of bag dust collector. In general, the pulse spray bag filter uses needle felt, the chamber back blowing bag dust collector or the mechanical vibration bag filter selects the woven cloth.