Design and Application of Steam Automatic Control for Tobacco Dryer
[Purposes]To reduce the steam unit consumption of tobacco dryer,and further improve the ef-ficiency of the steam use of tobacco dryer,this paper designs an automatic steam management and con-trol mode.[Methods]The mode uses modeling theory and a variety of analysis tools and methods to iden-tify the main factors and the optimal path to achieve the goal;by using PLC control technology,man-machine interface technology and database technology,on the one hand,the defect that the field instru-ment can not collect the cumulative value is overcome,and on the other hand,the energy early warning and prompt based on the key production equipment at the production site is established.[Findings]The results indicate:the steam unit consumption of tobacco dryer is reduced from 0.70 kg/kg cut tobacco to 0.60 kg/kg cut tobacco,the reduction range is more than 10%,and the steam unit consumption index of the tobacco dryer is effectively reduced;the user can find the problem in time by means of the automatic control mode.[Conclusions]This technology can provide support for energy management sinking to the key equipment layer and improve the level of energy lean management.
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