Optimization Design And Controlmethod For The Large Container Of Sponge Titanium

The reduction and distillation process is the most critical part intitanium-sponge-production. The reduction and distillation container is the major equipmentin this process. Not only does it need to replace titanium element from titanium tetrachloride,but also assume the purification task of the titanium lump, and these processes need towithstand the high temperature of about900℃. In order to get access to a highly efficientequipment which can produce sponge titanium of high quality and safety, a new structure ofnew material is brought forward in this paper. This new structure, with double layers, innerlayer of carbon steel and outer layer of stainless steel, is a substitute for traditionalsingle-layer stainless steel container. On the one hand, the container increases the singlefurnace capacity. On the other hand, it improves the peeling of the single-layer.Through the analysis of the production process with extremely harsh conditions of hightemperature and high vacuum, ANSYS finite element analysis (FEA) is applied to themodeling and thermal stress analysis in this paper.In addition, the requirements for the big lag temperature control and non-excessiveovershoot make the traditional PID control algorithm improve to ensure a fast, accurate andstable access to the steady-state production process.