| In the chemical industry region what adopt foodstuff or other chemical product as raw material produces some different product by biochemical technology. A most key unit of product technology is crystal process. Crystallizer as the carrier of crystal technology, it has violent development in the theory research, high technology and produce technology regions, in recently few decade, which provides scientific substance basis for chemical and biological requirements of product quality, productivity and received rate.In order to ensure the quality and quantity of product, many famous foreign biological technology company and research institution pay attention to renewing the high technology for crystallizer that includes adopting the theoretical research and innovation for crystal, for example, making molecular model and thermodynamic and kinetic crystallization, owing to explaining the impact of organic impurity versus crystal growth, and then changing crystal habit. It is an important application to simulate crystal in crystallizer, above all to control crystal size and distribution. These researches provide an approach of process design and amplifying crystallizer.In biochemical region new technology unit applied to change multilevel (cubage) constant temperature difference coil oscillatory type continuous cooling mould. The kind of crystal equipment could erect corresponding mathematical model may improve crystal technology, furthermore promote its development in the crystal industry。The article is based on applying change multilevel (cubage)constant temperature difference crystal theory, designing a kind of continuous cooling crystallizer and making a mathematical model, which provides a theoretical foundation to practical application. At the same time, in order to realize the kind of crystallizer performance evaluation and optimization design, in the discourse it narrates different appraisal and optimistic method of crystallizer, performance analysis methods of crystal; Based on the relation of cooling unit team heat transfer property and structural dimension, in the condition of optimal crystal effect, deduces heat exchange step of optimal rules; Aimed at crystal course, according to characteristic parameter, attains best product quality and production rate, and then a relation of structural dimension.Moreover aimed at crystallizer’s structure and optimized ways, it brings forward a driven mechanism mode, parameter calculational methods and crystal cooling heat exchange control system method, this method obtains the crystallizer optimal operational parameter. |