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GZ  Dust collecting material& Bag

1. Normal& medium temperature air filtration needle felt

 Material: PE, PP, acrylic

 Temperature: not higher than 160elsius degree, 120 degree normally. The temperature resistance of PE is from 130- 150 degree; It' s the lowest temperature for PP material, and 140- 160 degree for acrylic normally.

Technology characteristic: 

Anti- acid, anti- alkali( medial), chemical resistance

Good anti- abrasion character

Laminated compound, grads conterchange,  High filtration efficiency, Long serve life, High porosity, Good air permeability

Application:

Main used in steel industry for iron smelting, casting and electric furnace dust collection, 

dealing with the exhaust in electrolytic aluminum fume, alumina transmission 

and non- ferrous smelting industries, ordinary dust removal and notmal- temperature exhaust treatment, 

for match of equipment for liquid filtration& separation like plate and frame filter press, filter centrifugal, cacuum suction filterm bag- type filter, etc.

GZ Polyester needle felt is made from polyester fabric by needle punch, and treat with singeing, calendering stereotypes process.

This material has good friction resostamce, highporosity good twist resistance, good air permeability.

It' s a kind of widly used notmal temperature filter material. 

2. High temperature air filtration needle felt

Material: PPS, Nomex, FMS, fiberglass, P84, PTFE, etc

Temperature: not lowerer than 160 Celsius degreeTechnology characteristic:strong acid resistance, good stability, high filtering efficiency

Application:

Main used in low- oxidizability garbage incenerator, metal melting, fly ash of steel plants, coal- fir boiler and chemical industry, collection of blast- furnace gas of kiln forehead, liln backend and steel works, high temperature exhaust of electric furnace, exhaust of refractory brick kiln and the coking exhaust in the industries of asphalt mixing, non- ferrous smelting, ceramics, glass and cement.

The filter bag is the key elements which determine the dust collecting efficiency and working temperature. Renewal of bags create major cost in maintaining bag house. So the lifetime of qualitified bag can last from one year to six years under condition of reasonable usage.

GZ RFQ:

How to assure the product quality?

 1. We are the manufacturers of this line, we have the ability to supply the stable and good quality to our buyers.

2. We are the three years’ god member of the international third Alibaba . So if  any questions of  our product quality , you can find us directly and quickly on Alibaba.

3. If you want, we also can produce some of the order goods as your special requirements firstly for you, then delivery the goods for your test , if  you say that’s ok, then we go on the order dear.

Why aren't my bags lasting as long as they used to?

 Usually because they are working harder. Bag’s life is limited by the amount of dust captured, not by hours they are used. Bags filtering clean working environment may last a year. A bag filtering high dust containing plant may only last a few weeks. A product can appear clean to the naked eye and still be full of particles that are too small to see. 

How do I know when to change bags?

  Monitor the inlet pressure. The pressure drop across a bag rises as the active surface area is used up. When the pressure starts to raise faster the bag is almost used up and should be changed. Every application is different, but a good rule of thumb is to change bags when you see 8-12 PSI pressure drop (the difference in pressure between the filter's inlet and outlet). 

How many times can I clean and reuse a filter bag?

 Filter bags are designed for one time use. Attempting to clean a bag will stretch the material. Some holes will get bigger and allow dust to get through. Other holes will get smaller, plug up faster, and start removing things from the product that are supposed to stay in it.