Dust bag is widely used in carbon black industry
Influence factors of dust removal bag selection on flue gas Discharge: Influence of filter bag selection on flue gas discharge: Different kinds of filter materials have different filtration accuracy.
Generally speaking, the filtration accuracy of glass fiber filter material is: open width < acupuncture felt filter material < bulked yarn filter material < film-coated filter material; Influence of ash cleaning method on flue gas emission: Under the same conditions, the higher the ash cleaning pressure is, the greater the influence on dust emission will be;
Influence of dust content in flue gas on flue gas emission: Under the same conditions, the higher the ash clearance pressure is, the greater the influence on dust emission is. Influence of dust removal equipment manufacturing process on flue gas emission: the production level, sealing performance, welding level and pipe sealing of dust removal equipment directly affect the flue gas emission concentration.
The black powder solid produced by incomplete combustion and thermal pyrolysis of carbon black has a small particle size, usually between 20 and 140nm, and exists mainly in the form of aggregates. At present, nearly 95% of the world's carbon ash production plants are using furnace black process, almost so manufacturers in China are.
Carbon black dust can be discharged in four parts: main bag filter, exhaust bag filter, retreatment bag filter, and dryer fire box exhaust.
Requirements for carbon black flue gas filtration: high strength filter bag is required; Good air permeability; High dust removal efficiency; High temperature resistance; Good corrosion resistance, especially acid resistance; Good ash cleaning performance;