Research of dust reduction and spraying system for mining sprinklers

doi:10.16265/j.cnki.issn1003-3033.2023.S2.0004

Abstract

Abstract:

The spraying system for mining sprinklers failed to autonomously adjust the amount of water sprayed based on the concentration of road dust. In view of this, a variable spraying system for mining sprinklers was designed. A simulation model of the variable spraying system was established using AMEsim software, and the pressure, flow, and system power changes of the variable spraying system experienced by the sprinkler on horizontal, uphill, and downhill sections were analyzed and compared with those of the quantitative spraying system. A parameterized analysis of the influence characteristics of pipeline diameter on nozzle pressure in the variable spraying system was conducted. Fluent parametric simulation software was used to analyze the impact of vehicle speed on the spraying system, and the influence characteristics of vehicle speed on the mist spraying process were obtained. The results show that engine speed above 1 700 r/min in the spraying system for the sprinkler can effectively maintain system stability. When the system pipeline diameter is 50 mm, the maximum pressure of the system is 0.508 8 MPa, and the average pressure is 0.456 MPa, which maintains the pressure of the spraying system.

Key words: sprinkler truck, dust effect, variable spraying system, quantitative spraying system, droplet size

CLC Number:

X964工业防尘

LU Lixin, DU Zhiyong, SUN Guosi, TANG Yadong, DU Yongzhi, XIE Miao. Research of dust reduction and spraying system for mining sprinklers[J]. China Safety Science Journal, 2023, 33(S2): 152-157.

Figures/Tables 15

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