Failure analysis of filter media

The filter bag is the key element to determine the dust removal efficiency and working temperature of the bag filter, and the main cost of the bag filter is to replace the filter bag. Therefore, the life of the filter bag is related to the operation state and cost of the dust collector, and the failure of the filter bag is mainly analyzed from the following aspects.

Description

The filter bag is the key element to determine the dust removal efficiency and working temperature of the bag filter, and the main cost of the bag filter is to replace the filter bag. Therefore, the life of filter bag is related to the operation state and cost of dust collector.


The failure of filter bag is mainly analyzed from the following aspects:


Macro control

Bag appearance: bag cage corrosion, oxidation, mechanical damage

On site detection: flue gas volume, operating temperature, oxygen content, moisture, pH, etc

Test: air permeability, breaking strength, elongation, shrinkage, wear resistance, etc



Micro analysis

Gas temperature, gas humidity, Sox, content of hydrogen fluoride, hydrogen chloride, nitrogen oxides and metal oxides, pH value, particle size, dust density, etc