Due to the advantages of a large filtration area

elongated filter cartridges are gradually replacing filter bags in dust collectors. However

the production standards for these filter cartridges lack clarity in determining various parameters. Therefore

this paper combines experimental validation with computational fluid dynamics simulations to analyze the resistance characteristics of elongated filter cartridges

aiming to establish recommended parameter combinations for their optimal design. Single factor analysis and Response Surface Methodology (RSM) are employed for parameter optimization. The study establishes a quadratic regression model to predict resistance based on various filter cartridge parameters. Single factor analysis indicates that the optimal combination of length and pleat number is approximately diagonally distributed. The RSM ranks the factors' impacts on resistance as follows: length (L) pleat number (N) ≈ pleat length (P

l

) filtering velocity (v

f

) outer radius (R). The optimal parameter combination under global optimization is:

N

= 43

P

l

=23 mm

R

= 76 mm

L

= 2 m. Additionally

the study analyzes the distribution of normal and tangential velocities of airflow on the filter medium surface to understand their impact on filter lifespan. Results indicate that tangen

tial velocity has a significant impact on filter wear

and locations with higher tangential velocity are situated in the bottom region of the fold at the outlet.