Overview of the high-pressure spray dust suppression system of the fog cannon machine:

1. Before the transformation of the spray dust reduction system of the fog cannon, the comprehensive individual dust concentration sampling analysis: 6.09~6.44mg/In (respirable dust concentration). After the transformation of the spray dust suppression system, the comprehensive individual dust concentration sampling analysis: 3.25~3.65mg/In (respirable dust concentration).

2. The water outlet pressure of the spray dust suppression pump of the fog gun machine can reach 6.3MPa, and the water flow can fully meet the water for spraying dust inside and outside the coal shearer. The operation is stable and safe, and there is no water leakage.

3. The dust-proof water and dust suppressant of the fog gun machine pass through the proportioning box to play the role of dust-proof water filtration, and the air curtain wall formed by the coal shearer spray can well control the flying of the dust source and prevent the dust from spreading to the whole The spread of the working space and the deterioration of the working environment of the workers have largely avoided the impact of the drum spray in the upwind direction on the shearer driver.