Influence Analysis of Lateral Wind Speed and Spray Pressure on the Characteristic of Dust Removal Spray

Fluent numerical simulation software was used to conduct quantitative analysis on spray characteristic parameters of the nozzle, and a total of 5 simulation schemes were established, including wind speed was 2 m/s, spray pressure was 8.0 MPa, 10.0 MPa and 12.5 MPa respectively, and spray pressure was 8.0 MPa, wind speed was 1 m/s and 3 m/s respectively, the distribution of droplet concentration and droplet velocity were analyzed. The simulation results show that when the lateral wind speed increases from 1 m/s to 3 m/s, the spray range decreases from 4.0 m to 1.8 m, the maximum concentration of fog drops on the vertical plane 2 m from the nozzle decreases from 0.12 kg/m³ to 0.03 kg/m³, indicating that the higher the wind speed is, the faster the droplet velocity decays, and the smaller the droplet concentration and velocity are when they reach the same plane; when the spray pressure increases from 8.0 MPa to 12.5 MPa, the spray range increases from 2.4 m to 3.0 m, the maximum concentration of fog drops on the vertical plane 2 m from the nozzle increases from 0.08 kg/m³ to 0.10 kg/m³, the proportion of fog drops with particle size less than 25 μm to 30 μm increases from 70% to 90%, indicating that the higher the spray pressure is, the better the spray effect is, and the stronger the anti-wind ability of fog drops is, and when reach the same plane, the smaller the particle size is, the larger the mass concentration and velocity are.