6th INTERNATIONAL SYMPOSIUM ON MINE SAFETY SCIENCE AND ENGINEERING

127 / 2023-06-21 15:12:04

Effect of air supply pressure on the particle size of dry water mist combined spray

dry fog-water fog combined spray；atomization particle size；air supply pressure

In order to study the influence of air supply pressure on the particle size of dry fog-water fog nozzle combined spray field, based on the underground simulation tunnel spray dust reduction platform system, under the condition that the water supply pressure of dry fog and water fog is constant, the Winner 319 particle size analyzer is used to test the change of droplet size in the fog field under different air supply pressure of dry fog. The results show that when the water supply pressure of dry mist and water mist is constant, as the air pressure increases, i.e. the air hydraulic ratio increases, the air flow rate gradually increases, and the water flow rate gradually decreases; The droplet size D50 first increases and then decreases, D[3,2] gradually decreases, and the optical concentration gradually increases.