Gas-Solid Two Phase Flow in Internally Circulating Two-Stage Spouted Desulfurization Tower

To study the circulating fluidized bed desulfurization tower flowing fields, a two-stage spouted tower was presented and an experimental installation was established. Experimental studies on flow fields have been carried out by using a particle dynamic analyzer (PDA). Results indicate: The stable annular flow patterns is obtained in the two-staged desulphurized tower. The irregular and uniform flow is advantage to strength mass transfer at the Veturi inlet of tower. The result of stable back flow of particle at the wall makes it possible that atomizing humidified water or slurry can not directly eject the wall of the tower. At the assurance of atomized covering area, the fact ensures that humid scaling will not be produced at the wall. Micro-particle in gas can be arrested stable dynamic particle layer forming from the particular two stages spouted structure combined proper aggregate accelerating agent.