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Principle description of water and oil repellent dust collecting bag

2022-12-03 Page view : 15 views

The water and oil repellent dust collection bag can effectively prevent water and various oil contaminants from adhering and penetrating. Compared with ordinary filter bags, it not only has the characteristics of waterproof and anti submergence, but also has the properties of anti adhesion and easy stripping for dust

The filter cloth of the water and oil repellent dust collection bag is calendered and impregnated with PTFE (waterproof agent), and is used in occasions with large moisture content and temperature The filter material is not easy to block the paste bag, the service life of the dust collection filter bag is extended, and the maintenance cost is greatly saved by increasing the gas flow The filter bag can be called the heart of the dust remover. The selection of the filter bag is very important, which directly affects the dust removal effect of the dust remover. The selection of the filter bag should be made from the following aspects: temperature, humidity and chemistry of the gas; Particle size; Dust concentration; Filtering wind speed; Comprehensive consideration of dust removal methods and other factors

Filter bag mechanism of waterproof and oil proof dust collector:

Water and oil repellent filter bags are impregnated with mixed working fluid prepared with reactive fluoride additives to make the working fluid react with some groups in the macromolecular structure of the filter material fiber to form macromolecular chains, change the affinity of fiber with water and oil, reduce the surface tension of water and oil repellent cloth bag filter materials to less than the surface tension of water and oil, so as to make water and oil repellent cloth bags achieve the purpose of water and oil repellent

Water and oil repellent dust collection filter bags are widely used. Water and oil repellent filter bags are mainly used for dust removal in places with high dust humidity, and the water and oil repellent filter bags are not easy to block the paste bags. They are used for dust removal in dust with high humidity, and the dust removal effect is very significant

Water and oil repellent production process:

Fiber loosening — carding — mesh laying — pre needling — main needling — felting — singeing — calendering — dipping PTFE (waterproof agent) — drying — setting — rolling — rolling — packaging

Water repellent, oil repellent and dust removal bag is also called two anti filter bag

After waterproof and oil proof treatment, the surface of the filter cloth has hydrophobicity, which prevents the bag from sticking, prevents the pores from being blocked, and is easy to remove dust. It also has chemical properties such as acid and alkali resistance. The filter bag with waterproof and oil proof treatment for the filter cloth is used in the situation with large moisture content. Compared with ordinary filter bags, the filter material is not easy to block the paste bag, so the service life of the bag can be extended, the ash removal cycle can be extended, and the gas flow through the bag can also be increased, so energy consumption and maintenance costs can be saved greatly.

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