A huge amount of water is evaporated to cool down and solidify the liquid metal strands coming out of bottom of CCM mould. The steam contains significant latent and sensible heat energy, besides the vapour is significantly devoid of microbes and soluble salt. Can the water vapour and/or its heat content be reutilized to increase thermal efficiency of Continous casting, theoretically and economically (like distilled water production, reinjecting vapour to water treatment plant to reduce mineral load in water to be treated as well as water requirement)? If not, then why? (except for very low energy saving but high investment to recycle the heat)
Dear Sumit Bhowmick ;
sure can improve the production efficiency and reduce residual stress and deformation.it can realize inside-out, fast and even cooling of castings. A forced-air cooling system with closed-loop control for PSIRC was designed and developed, as detailed in the following study, you can pass through it with regards ;
Article Intensive riser cooling of castings after solidification
https://www.worldsteel.org/publications/position-papers/water-management.html
The steel industry recognises the importance of managing water sustainably given water’s essential value to society. Even though the steel industry uses large quantities of water, very little of that water is actually consumed as most is reused or returned to source.
For example, sea water is almost exclusively used in cooling operations and the loss during these processes may account for less than 1% of the total due to evaporation. Although the intake is considerable, the water is returned to the sea without any change in quality.
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