Design And Simulation Of Control System Of Ceramic Kiln

Along with the improving of people's life, the pursuing of people to the quality of the life is high more and more. As the necessity of life, the ceramic ware for daily use is increasingly paid attention to by people. The demand of people to it gradually tends to rich-looking, comfortable, luxury and etc. This is not only an opportunity but also a challenge for the development of the ceramic industry of our country.In general, the ceramic equipments tunnel kiln has features of purely hysteretic, big inertness, nonlinear and complexity. Its accurate mathematics model is usually very difficult to be obtained. So for this sort system, this paper constructs the logical control model based on Pal-bool algebra by Pal-bool algebra. This method depends on experience and logical control laws and needs no accurate mathematics model of the controlled object, so avoid the difficulties in traditional control algorithm encountering building accurate model of the object.Firstly, this paper outlines noticeable researches on automatic control of firing process of ceramic kiln and its researches at present. From the present condition, there is no perfect method for automatic control of firing process of ceramic kiln in either home country or foreign country. What's more, the level of automation in home country is far behind the foreign country. This is one of all result of vulgarity of the ceramic ware in our country.To firing process of ceramic kiln to on-line measure and collect the data of all parameters is the premise of the control over them. The present status of parameter measurement are argued in firing process of ceramic kiln, including the methods and appliance of temperature and pressure and medium and so on, and the restriction of firing process of ceramic kiln applies to them.Then primarily informs the firing process of ceramic kiln control system devising and the structure of the system. According to the structural characteristics and process requirement of ceramic kiln, we design the control system based on personal computer and single micro controller, realizing the control system and control over temperature and pressure and medium. The paper details the hardware and software structure, and the working principle of the system, as well as the method to measure and control the parameters.The logical control model is built based on Pal-bool algebra based on a good deal of empirical data and characteristics of firing process of ceramic kiln. Then simulation on this algorithm by MATLAB and shows the feasibility of the algorithm, and the result shows that this algorithm is much advantageous over traditional algorithms in stability.