Academic Journal of Engineering and Technology Science, 2020, 3(6); doi: 10.25236/AJETS.2020.030615.

## Numerical Simulation of Combination Form of External Spray Nozzle for Roadheader

Author(s)

Song Shengwei1,*, Pan Yu 1,2 , Wan Feng1

Corresponding Author:
Song Shengwei
Affiliation(s)

1.School of Mechanical Engineering, Heilongjiang University of Science & Technology, Harbin 150022, China
2.Shandong Huitong Construction Group Co., Ltd, Jinan 250013, China
*Corresponding Author

### Abstract

In order to study the influence of the combination of external spray nozzles on droplet size in the atomization superposed area, according to different nozzle combinations, spray pressure and jet axial distance, the droplet size of the atomization superposition area was simulated by FLUENT software under the combination of single nozzles and 4 nozzles according to the combination of different nozzles, and the optimal nozzle combinations were selected according to the dust trap theory. The changing trend of droplet size in atomization superposed area was analyzed by combination of nozzle, spray pressure and jet axial distance. The results showed that the spray combination had an obvious effect on improving the atomization effect. The spray pressure was inversely proportional to the droplet size of the atomization superposed area. With the increase of the axial distance, droplet size decreased first and then increased, but the minimum value was different. When the spray pressure is near 2MPa, the droplet size is close to the theoretical value in the atomization superposed area of the three nozzle combination. The experimental study of the atomization superposition area of the nozzle combination form has important guiding significance for the treatment of the underground dust.

### Cite This Paper

Song Shengwei, Pan Yu, Wan Feng. Numerical Simulation of Combination Form of External Spray Nozzle for Roadheader. Academic Journal of Engineering and Technology Science (2020) Vol. 3 Issue 6: 143-156. https://doi.org/10.25236/AJETS.2020.030615.

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