07
2020
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10
Application of Air‑Atomizing Nozzles and Dry‑Fog Dust Suppression Technology
Author:
Oxygen spray
Air atomizing nozzle and Application of Dry Fog Dust Suppression Technology
One 、 Application areas
Air‑atomizing nozzles were initially used in laboratories and medical devices. Ultrasonic atomizing nozzles deliver excellent atomization performance, and because they produce only a small liquid‑mist volume, they are increasingly being adopted for industrial dust‑control applications.
The droplet size produced by ultrasonic air‑atomizing nozzles can be as small as 10 μm or less, making them ideally suited for industrial dust suppression. The fine mist continuously emitted by these nozzles mixes with airborne particulates of comparable size and is then entrained and carried away by high‑velocity air. With growing national emphasis on and investment in environmental protection, ultrasonic atomizing nozzles have been deployed for cooling and dust control at coal storage yards, mining sites, and steel plants. Dust removal , cooling and dust removal at cement plants, cooling and dust removal at port terminals, Belt conveyor chute dry‑mist dust suppression, mist‑curtain dry‑mist dust suppression, coal‑unloading car dumper dry‑mist dust suppression, and wet‑spray dust suppression with dry mist, among others.
Two 、 Performance Features
1. Nozzle Maintenance: Because ultrasonic atomizing nozzles do not rely on high pressure to achieve maximum water atomization, maintenance virtually eliminates wear issues associated with high-pressure pumps.
2. Service Life: The ultrasonic atomizing nozzle cleans the nozzle chamber while vibrating. With no moving parts and constructed entirely of 100% stainless steel, it eliminates wear and corrosion compared to brass nozzles, thereby extending its service life.
3. Atomization Effect: When 2-micron water droplets travel a distance of 2 meters, any airborne dust particles are completely enveloped by the dense cloud of mist, leaving them no chance to escape. Spray‑based dust suppression uses minimal water and no chemicals, increasing the overall moisture content of transported materials by less than one part per ten thousand. The underlying principle relies on collisions between water droplets and dust particles, causing them to coalesce; as their size and mass grow, they aggregate into larger, heavier particulates that settle out. The entire process requires no special treatment.
Three , Operating Principle
Compression‑air or electromagnetic actuation of the shut‑off valve induces high‑frequency oscillations in the atomizing medium, breaking it into fine particles. Because the vibration frequency exceeds that of audible sound, pulse‑width‑modulated flow control enables ultrasonic atomizing nozzles to switch rapidly between open and closed states. The transducer’s high‑speed vibrations generate ultrasonic waves, which exert acoustic pressure on the liquid, fragmenting it into tiny droplets.
Ultrasonic atomizing nozzles require a high‑velocity air stream that strikes a mechanical vibrator, inducing high‑frequency oscillations and enhancing the atomization performance. Because they rely on compressed air, they are also classified as enhanced air‑atomizing nozzles.
Atomizing nozzle,Dry-mist dust suppression,Nozzle,Cooling and dust removal,Dry-mist dust suppression for belt conveyor chutes,Fog curtain dry-mist dust suppression,Dry-mist dust suppression for coal-unloading tipplers,Dry-mist dust suppression and humidification spray,Coal Yard Cooling and Dust Removal,Steel plant cooling and dust removal,Port terminal cooling and dust suppression
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