Study On Rotary Atomizing Technology And Rotary Atomizing System

Rotary atomizing technology turns the liquids into micro-droplet by rotaryequipment. The core equipment is rotary atomizer, which uses a high speed motor todrive the wheel rotating in very high speed. The suspending or milk material spurtout of the special nozzle on the wheel by the strong centrifugal force, consequentlythe material is atomized into micro droplet with diameter in several tens of micron.After atomization, the micro droplet obtains big surface/volume ratio, which favorsthe heat and mass transferring among different components during chemicalinteraction.Rotary atomizer is widely used in fields of chemical industry, pharmacy,foodstuff, and environment protection. In field of atmosphere pollution prevention,the rotary atomizer is used to desulfate flue gas in power plant or refuse incinerationplant. Now the rotary atomizers used in our country are mostly imported from othercountry and cost a lot of foreign currency every year. With the boom ofwaste-to-energy industry in our country, the rotary atomizer is used more and morewidely. Therefore, homemade rotary atomizer is an urgent demand of China market.Under this background, many key theoretical and technological problems ofhomemade rotary atomizer are studied and researched in this thesis. Through theanalyses of atomization mechanism of rotary atomizer, a set of rotary atomizermechanical system and a correlative monitoring and controlling system are designed.The main contents and achievements of this paper are as follows:1. The atomization theory of rotary atomizing technology is studied, and thetheoretical criterion is supplied for the development of rotary atomizer. Theatomization theory is validated by a set of experiments.2. The theoretical base is supplied for the parameters in rotary atomizermechanical design.3. According to above research, a rotary atomizer system is designed, whichconsists of the following subsystems: driving subsystem, lubricatingsubsystem, cooling subsystem, feeding subsystem, and atomizationsubsystem.4. The driving system movement is emulated by MECHANISM module ofPRO/E, and the high-speed driving subsystem is proved reasonable andcredible.5. A monitoring and controlling system is designed and debugged, with maincomponents of PLC, converter, and many sensors. The monitoring andcontrolling system monitors operation parameters such as pressure, flux,vibration, and temperature, to insure safe operation of rotary atomizer.