| Multiphase flow has been extensively involved in the fields of industrial and technology, such as energy, environment protecting, petroleum and chemical engineering, cryogenics and refrigerating, aerospace and so on. The research about swirling gas-solid multiphase flow is an important branch of multiphase flow. It is widely applied in technology field, such as the burner and aerodynamics characteristic of boiler in modern power plant, the gas-solid cyclone of the Circular Fluidizing Bed (CFB), the swirling burning of Municipal Solid Waste (MSW), gas desulfuration and remove duster combination technology, the gas-solid high temperature separating technology in IGCC, all above are important problems and key technologies in gas-solid multiphase flow. The researches of rotated gas-solid separation related to energy and environment have important academic significance and engineering value.The researches reported about rotated gas-solid multiphase flow haven't synchronously considered the drag force, gravity force, adjunctive mass force, pressure gradient force, Basset force, lift force, Magnus force, Saffman force, and the interaction between particles, the influence of water atomization to the coalescence and collision between particles. Moreover, there still haven't any recognized correlations to calculate the efficiency of dust removing for water-film dust remover. It will enrich and promote the academic researches, and carry forward the technological innovations and applications to explore and clarify the separated mechanics of rotated gas-solid multiphase flow.This paper is in allusion to the separated mechanics and application of the rotated gas-solid multiphase flow. The model of single particle movement is established on the multiphase flow, and the correlation of separate efficiency is achieved for the first time. Based on the analysis of single particle movement, the correlation of equilibrium particle diameter in gas phase and the time character of non-equilibrium particle are determined. Upon equilibrium diameter, non-equilibrium time, the separator structure and operating parameter, the separation efficiency relationship (Eq. 2.24) is acquired. Considered the boundary layer of rotated flow and the force characters of particle, the correlations (Eq. 2.32) are acquired for the first time. From the investigation, the solutions to enhance separation efficiency are putted out.Water inject is an efficient solution to enhance the coalescence and collision between particles, and enhance the efficiency of separating. In allusion to the solution, author has developed the rotated atomizing nozzle with micro-expanded tangent channels (Chinese Patent, No.369736) for the first time. According to our three-dimensional flow model of the nozzle, the fluid flow is numerically simulated and its structure character is optimized. The simulated results are agreed with the experimental results very well. The nozzle has better atomization character at the low pressure. It can be broadly applied in the burner and gas desulfuration and remove duster technology of energy, environmental protection and chemical industry.On the bases, considering synchronously the drag force, gravity force, adjunctive mass force, pressure gradient force, Basset force, lift force, Magnus force, Saffman force, and the interaction between particles, the influence of water atomization to the coalescence and collision between particles, and considering the action of particle upon gas phase (heat and mass transfer), author presents the three-dimensional time average control equations for the multiphase flow. And the k-(/ RNG turbulent model is adopted to solution. The movement and temperature characteristics are simulated and the separating efficiency of the particle is investigated for the rotated multiphase flow. The correlation (Eq. 4.57) is acquired to calculate the efficiency for swirling atomized water-film remove duster for the first time, and the optimum structure parameters are gotten at same time.Experimental results show that the r...
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