Development Of Intelligent Air Volume Setting Method And Simulation Platform For Municipal Solid Waste Incineration

With the continuous increase of the total amount of municipal solid waste,the national attention to garbage classification and treatment and the improvement of the public’s awareness of garbage treatment,garbage incineration power generation technology has become one of the main ways to effectively treat garbage in developed cities.Due to many factors such as the late start of relevant research in China and the complexity of waste composition,the key parameters of incineration process control largely depend on manual monitoring and operation.However,the waste incineration power plant,which has been put into operation,has complex and changeable process,and with the high energy consumption and improper operation,it is easy to cause unsafe failures and other adverse factors,so it is difficult to use it as an experimental device.In view of the appeal problem,this paper takes the grate incinerator in the actual industrial site as the research object,studies the intelligent setting method of the two key parameters of the primary and secondary air volume in the waste incineration process,the intelligent setting model of air volume is proposed and the relevant intelligent setting software platform is development.Then,based on the requirements of intelligent control method and optimization algorithm verify of incineration process,a simulation experiment platform of urban life incineration process is developed by combining virtual software with actual controller.The main work of the project is as follows:(1)Intelligent setting method of air volume.At present,the setting of primary and secondary air volume in the actual waste incineration power plant generally depends on the manual operation based on experience,which leads to the problems of lag in the stability control of incineration process and the inability to find the optimal value of air volume setting.To solve this problem,this paper proposes an intelligent setting method of air volume is proposed which combines case-based reasoning and expert rules in this paper.The method includes building case library,case retrieval,reuse,revise,reserve and expert rule correction.In the case revise process,two steps of evaluation index and rate of change are used to modify the suggested solution obtained from case reuse,so that the final air volume setting value is more in line with the actual condition requirements.(2)Design and development of simulation platform.According to the technological process of grate incinerator,a three-layer simulation platform including intelligent control optimization layer,basic control layer and virtual object layer is designed.Among them,the intelligent control optimization layer realizes the intelligent stability control of the incineration process and the optimization setting of key parameters;the basic control layer realizes the incineration process loop control,equipment operation status monitoring and alarm;the virtual object layer provides the simulation data under different working conditions for the intelligent control optimization layer and the basic control layer.Through the configuration of the local area network of the simulation platform,two kinds of network communication modes,wired and wireless,are provided,so as to realize the connection of various devices of the platform and the network communication function between different software.The simulation platform is developed by MATLAB,C# programming language,Rockwell software package and SQL Server.(3)Experimental test.Test the above intelligent setting method of air volume based on case-based reasoning and expert rules,and the simulation experiment shows the effectiveness of the method proposed in this paper;connect the developed hardware and software into the local area network for power on operation,and test the functions of the simulation platform under the control state of the basic loop with the actual historical data on site,and the results show that the software and hardware parts of the platform run stably.It is reliable and can reflect the change of incineration process correctly and that is an effective simulation experiment platform.