In high – end and complex industrial dust removal scenarios, the P84 (polyimide) dust filter bag, with its excellent high – temperature resistance and efficient filtration performance, becomes a “precision guardian” for accurately collecting fine dust and coping with harsh environments.
1. Unique Material Attributes
P84 fiber is a polyimide fiber with an irregular cross – section. It has a high melting point, with a long – term continuous service temperature reaching 260°C, and can momentarily withstand up to 300°C. It has significant advantages in flue gas dust removal in high – temperature industries such as hot blast stoves in steel mills and glass kilns.
It has excellent chemical stability, showing good tolerance to various strong acids, strong alkalis, and organic solvents. Even in complex chemical environments (such as dust removal of multi – component waste gas in the chemical industry), it can maintain the stable structure of fibers and is not easily damaged by erosion.
2. Filtration and Collection Efficiency
Due to the irregular cross – section of the fiber, the P84 filter bag has a large specific surface area and strong dust interception ability. For PM2.5 and finer dust, it can efficiently collect them through the complex pores between fibers. In industries with extremely high requirements for exhaust gas cleanliness such as electronics and pharmaceuticals, it can ensure extremely low particulate matter concentration in the exhaust gas, meeting strict environmental protection and production standards.
In terms of dust cleaning, although P84 fiber is relatively brittle, by reasonably designing the filter bag structure (such as optimizing the needling density and selecting a suitable base cloth) and cooperating with dust cleaning methods such as pulse jet, it can ensure the dust cleaning effect while reducing fiber damage, maintaining the long – term efficient operation of the filter bag.
3. Application Scenarios and Value Embodiment
It is widely used in precision dust removal in high – end manufacturing, chemical, metallurgical and other industries. For example, in the waste gas treatment of electronic chip manufacturing workshops, P84 filter bags collect fine dust to avoid affecting chip quality
