Study on the influence of filter plate geometric configuration on flow field and dust deposition distribution in dust collectors

Industrial dust pollution threatens occupational health and production safety, driving the urgent need for optimized filtration technology. Filter plate geometry critically regulates flow fields, filtration performance, and energy consumption. This study numerically modeled a dust collector with a flat filter plate and three corrugated filter plates of different curvatures (λ = 1/8, 2/8, 3/8). Using the SST k‑ω turbulence model, discrete phase model, and JKR adhesion theory, the effects of curvature on flow distribution, turbulent kinetic energy, pressure field, and dust deposition were investigated. Quantitatively, compared with the flat plate (λ = 0), the corrugated plate with λ = 1/8 reduces the pressure drop by 3.5% (from 256.4 Pa to 247.3 Pa) by increasing the effective filtration area. Further increasing curvature to λ = 3/8 significantly improves deposition uniformity and suppresses local filter cake accumulation, though a slight pressure drop rebound occurs due to intensified flow separation. Mechanistically, curvature induces periodic pressure fluctuations and multi-peak turbulent kinetic energy, enhancing particle migration while balancing airflow uniformity. These results demonstrate that the optimal curvature range for balancing energy consumption and deposition performance is λ = 2/8–3/8.