Hybrid Cyclone Spray Tower

The hybrid cyclone tower integrates five mechanisms — inertia, centrifugation, collision, emulsification and absorption — enabling complete treatment within one device.

1) Cyclonic Entrainment

Dust- or pollutant-laden exhaust gas enters the base of the tower tangentially under negative pressure from the induced draft fan. The gas passes through a cyclone generator with guide vanes, accelerating airflow to approximately 15–25 m/s and creating a strong swirling flow field that initiates centrifugal separation.

2) Gas–Liquid Emulsification

A recirculation pump delivers scrubbing liquid (water, alkaline solution or oxidising solution depending on duty) to spiral nozzles at the tower top. Counter-current spraying combined with high-speed swirl atomises droplets into micron-scale particles, forming an intensive gas–liquid emulsification zone.

• Particles are driven to the tower wall by centrifugal force, where they collide with the liquid film and are washed downward.
• Gaseous pollutants such as HCl, NH₃ and VOCs dissolve, neutralise or oxidise within the emulsification zone.

3) Centrifugal Separation

The emulsified flow enters a converging–diverging centrifugal cylinder. As the flow radius decreases, centrifugal force increases, throwing droplets and captured dust to the walls and directing them to the sump. Cleaned gas converges toward the centre and moves upward.

4) Packing Polishing & Demisting

The rising gas passes through one or more layers of structured packing (such as Pall rings or hollow balls) and secondary spray zones to remove residual contaminants. A mesh or plate demister at the top removes entrained droplets, ensuring compliant discharge.
The liquid circuit operates in a closed loop, with sediment periodically removed via sludge or scraping systems.