Intelligent Controller Design And System Simulation Of Egg Powder Spray Drying

During egg powder processing, the system of automatic detection and control is required to be advanced, dependable, safety and stable in order to obtain high quality and high added value of egg powder. With the increasingly enlarging the production capacity in the dry egg product industry in our country, and the continually increasing of automation degree in production process, spray drying becomes an important step of increasing egg powder quality and output, and reducing energy loss.The researches about the theory and method of process control in the world are analyzed in this paper. Meanwhile, in view of control demand during egg powder processing, temperature control method is analyzed multivariately and simulated according to the composition of spray drying system and the process flow features of egg powder formation. On the structure of closed continuous spray drying system with international advanced egg powder processing technics, intelligent temperature control system is designed with complex fuzzy PID control method. Furthermore, the system is able to automatically modify the internal parameters on line to control the egg powder output in the spray drying mouth according to the integrated temperature detection of air inlet, dry box and air out. Under the complex condition, such as uncontrollable heater temperature, the heat amount absorbed by egg liquid because of evaporization is kept balance between income and expenditure with the heat amount supplied into air inlet by heat distributor. In conclusion, fuzzy control method is applied to automatic control of egg powder processing, and the control result is very good. Based on preceding research work and practical project application, the method of dynamic prediction is put forward by establishing the fuzzy control model of spray drying processing, which offers theory model and effective control method for realizing more intelligent control of processing. The key technology fills up the blank on the field of spray drying automatic control system in egg powder processing industry in our country, and provides technical assurance for updating overseas like equipments.