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High quality bitumen bag

    Payment Type: L/C
    Incoterm: FOB,CIF
    Min. Order: 100 Piece/Pieces
Basic Info

Model No.Customized

Additional Info

Packagingcarton

TransportationOcean,Land

PortXingang China

Payment TypeL/C

IncotermFOB,CIF

Product Description
Application: glass fiber needle felt, can be widely applied to chemical industry, steel, metallurgy, carbon black, power generation, cement and other industrial furnace flue gas filtration. It is suitable for all kinds of bag filters, such as pulse cleaning and high speed reverse blowing. Selection of glass fiber for dust removal.

1. filter speed is the key factor for the selection of dust filter bag. It should be determined according to the properties of dust or dust, the use of dust, dust particle size, viscosity, gas temperature, water content, dust concentration and so on. When the particle size of the dust is finer, the temperature and humidity are higher, the concentration is larger and the viscosity is larger, the low value should be selected. If it is less than 1m/min, and vice versa, it is usually not appropriate to exceed 1.5m/min. As for the large particle size, normal temperature, dry, sticky, and extremely low concentration, it can choose 1.5 ~ 2m/min. When filtering speed is selected, the net filtration speed should not be exceeded when the filter area is reduced.

Alkali free glass fiber bag

2. filter materials for dust collector parts should be based on the temperature, moisture content, acid and alkali properties of the dust, the viscosity, concentration and pecking property of dust, and so on. Usually, when the water content is small and the acid is not acidic, it is chosen according to the temperature of the dusty gas. When the room temperature is less than or equal to 130 degrees C, 500 to 550g/m2 polyester needle punched felt is often used. At the time of <250 C, the two layers of glass fiber, 800g/m2 glass fiber needle felt or 800g/m2 glass fiber needle felt or 800g/m2 weft fiberglass fabric or flommus [FMS] high temperature filter material (fluorinated gas can not be used with glass fiber filter).
When the moisture content is large and the dust concentration is large, the waterproof, anti oil filter (or the anti condensation filter) or the coated filter material should be selected (the base cloth should be treated by the needled felt by waterproof). When the dust containing gas is acid and alkaline, and the gas temperature is less than 190 degrees C, PPS (Ryton polyphenylene sulfide) needle felt is often selected.

When the gas temperature is less than 240 degrees C and the demand for acid and alkali resistance is not too high, P84 (polyimide) needled felt is selected. When the dust gas is flammable and explosive gas, the anti static polyester needled felt is selected. When the dust contains both certain moisture and the flammable and explosive gas, the waterproof and anti static electricity (three defense) polyester needled felt is selected.

High quality antistatic polyester felt dedusting bag

Different filter materials should be selected for different working conditions.  For example:
1, asphalt mixing station:
Under the condition of no malfunction of the equipment, we usually use aramid filter material or choose the exclusive material for mixing. If the cleaning effect of the equipment is not good, we can choose the aramid filter material treated with calender. If the combustion medium oil atomization of the equipment is not good, the dust contains insufficient burning oil mist, making the viscosity of the dust easily cause the paste bag. We can choose the filter material of aramid fiber, and then add the waterproof and anti oil treatment.
2. Pulverized coal grinding station
Usually, in the pulverized coal mill, the dust concentration is large, the particles are fine and explosive, and the polyester can be treated with antistatic and laminating.
3. Calcined rotary kiln
In the calcined rotary kiln, the dust concentration is moderate and the humidity is high, the flue gas contains a certain amount of sulfur dioxide, the sulfur dioxide in the cold air or the condensate may be condensed into sulphuric acid, and the filter bag will cause corrosion. Therefore, we can choose the glass fiber composite needled felt filter material, and also according to the smoke temperature that finally enters the dust collector. Different glass fiber composite filter materials are selected.

Product Categories : Dust Collector Fittings > Dust Collecting Bag

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