How Efficient Is the Dust Removal of a Pulse Jet Dust Collector?

How efficient is a pulse jet dust collector? Pulse jet dust collectors boast the highest dust removal efficiency among all dust collection equipment. Currently, they hold an 80% market share in the dust removal and purification industry. This high market share is due to their superior dust removal efficiency compared to any other type of dust collector.

Dust removal efficiency is a fundamental parameter for evaluating any equipment. It represents the pulse jet dust collector's ability to handle dust-laden gas effectively. It is directly related to the dust collection rate of the filter bags, which is influenced by many factors, including dust properties, resistance, dust layer thickness, filter media material, filtration velocity, and cleaning method.

Below, we will introduce three key factors affecting the dust removal efficiency of pulse jet dust collectors.

(1) The Influence of Dust Collector Bag Working Conditions on Dust Collection Efficiency

Dust collector bags of the same model and material have different dust collection efficiencies under different working conditions. Dust collector bags with low efficiency, especially those with accumulated dust, show reduced dust collection efficiency after cleaning. It is evident that the dust layer on the surface of the dust collector bag, commonly referred to as the secondary filtration layer, plays a major role in dust collection in pulse jet dust collectors, while the dust collector bag only serves to support the dust layer. Therefore, the cleaning intensity should be appropriate, and a thick dust layer should be maintained to prevent a decrease in dust collection efficiency.

(2) The Influence of Dust Particle Size on the Dust Collection Efficiency of Pulse Jet Dust Collectors

For particles with a diameter of 0.2–0.4 μm, the dust collection efficiency of ordinary dust collector bags is consistent across all three working conditions. This is because dust particles in this range fall at the lower limit of the "interception" and "diffusion" mechanisms of the pulse jet dust collector's operating principle, making dust in the 0.2–0.4 μm range difficult to collect.

(3) The influence of dust collector bag structure and dust load on the dust removal efficiency of pulse bag dust collector

The amount of dust load deposited on the surface of the dust collector bag is also directly related to the dust removal efficiency of the bag dust collector.