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Home > Filter bag > Dust filter bag

Nomex dust collection Filter bags(Needle Punch Non-woven)

Post Time : 2012-05-16

Product Details

nomex filter bags

Widely used for gas filtration,dust collection and liquid and solid separation.

Cement Industry, Steel iron plant, Metallurgy plant; Chemical plant; Architecture Industry,Blast furnace gas.

special treatment:

Heat setting, calendar, water and oil repellent, anti-acid & alkali.

Specification:

Material: Nomex fiber,aramid fiber

2. Weight(g/m ) : 500

3. Thickness(mm): 2

4. Air perm(m³/m .min): 10-15

5. Tensile strength(5*20cm): warp < 900 weft <1200

6. Elongation : warp <25% weft <45%

7. Continuous service temperature: operation 200 c

peak <220 c

Suita Filters provide various kinds of dust filter bags, such as polyester needle felt filter bags, antistatic needle felt bags, water-oil repelled needle felt filter bags, Aramid (Nomex) needle felt filter bags, PPS needle felt filter bags, P84(PI) needle felt filter bags, PTFE needle felt filter bags, fiber glass needle felt filter bags, fiber glass wove filter cloth filter bags, FMS needle felt filter bags, besides, we also can provide some mixed material filter bas for some special requirements.

Dust bags come in 5 basic designs:

Pulse jet bags (bottom loader or bottom removal)
Pulse jet bags(top loader or top removal)
Shaker design
Reverse air design
Envelope bags

Pulse jet bags are cleaned using compressed air to mechanically "pulse" or snap the bag periodically so that the built up filter cake is discharged and the flow through the media is returned to its higher air permeability.Pulse jet bags are installed on wire cage supports and filter from the outside/ in. In the bottom load design, bags are pre-installed on their cages and then attached to a mounting thimble or cup which hangs down from the underside of the tube sheet. The tube sheet is a metal plate with regularly spaced holes which serves as the top of the gas tight metal box known as a dust collector. The top edge of the bottom loading bag is normally tucked into the cage and the entire assembly is attached to the thimble or cup with a hose clamp. Installation of bottom loading bags is more difficult because of being on the dirty side of the collector and having no catwalks or surfaces on which to stand. Some bottom loaders are on the top of large storage bins on tall silos which make installation potentially dangerous. Bottom loader collectors are frequently used when headroom above the collector is not adequate for top removal design bags.Bottom loading bags are less expensive than comparable size top loaders because the top is plain with no special attachment features