Study & Design Of The Glass Furnace Combustion Control System Based On Profibus

The glass furnace, which is the most energy cost equipment, is the essential device in the process of the float glass production, and it is more significant for melting furnace. China owns the highest total production of float glass because of the dominant number of producers. However, the quality cannot reach the international level. Therefore, improving the controlling technique of the glass furnace combustion system and raising the product quality and production rate, become the subjects of this article.In the aspect of practice, the procedures of float glass production are acknowledged through consulting the workers and visiting to the production line.The article studies the glass furnace combustion system, analyzes the controlling strategy of the variables, such as temperature, pressure and liquid level, and ensures the algorithm of fuzzy control and predictive control, in the advantage of fuzzy control and predictive control. Then the algorithm is proved by MATLAB the simulation software, and turns out to be feasible and efficient. Finally, the glass furnace combustion system is created by the PLC in S7-300 series from SIEMENS: a friendly man-machine interface is designed and the remote monitoring is realized by configuration software. The feasibility and efficiency of the algorithm in fuzzy control and predictive control is confirmed through its application in producing.The improvement of the algorithm and the controlling technique betters the quality of the liquid glass, lowers the energy cost of the glass furnace combustion system, and reduces the gas pollution, thus bringing a plenty of profit to the manufacturing enterprises.