The core process of the distillation system is: heating the mixed liquid to be separated in a reboiler, partially vaporizing it, and sending it to a distillation column; Steam flows from bottom to top in the tower, and makes countercurrent contact with top-down liquid on the tray or packing, and carries out heat and mass exchange of partial vaporization and partial condensation for many times; This makes the volatile components continuously enriched to the top of the tower, and finally condensed by the condenser into distillate products, while the non-volatile components continuously enriched to the bottom of the tower and discharged as the bottom products; Part of the condensate at the top of the tower returns to the top of the tower as reflux liquid to maintain the continuous and stable mass and heat transfer process in the tower.
The main types of distillation system include simple distillation, complex distillation and special distillation, in which simple distillation realizes component separation through a single tower and is suitable for mixtures with large volatility differences; Complex distillation separates azeotrope or near boiling point system by introducing the third component or coupling reaction; Special distillation uses high vacuum or membrane technology to treat high boiling point and heat-sensitive materials. The core of system design lies in balancing efficiency, energy consumption and separation accuracy, which needs to be flexibly selected according to physical properties, purity requirements and economy.
Núcleo del proceso: Se adopta la tecnología de recompresión mecánica de vapor (MVR) de efecto simple. Este es un método de evaporación eficiente y de bajo consumo.
Con el rápido desarrollo de la industria alimentaria, la escala y la cantidad de fábricas de alimentos han aumentado rápidamente. En el proceso de producción de alimentos,
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