METHOD FOR CHECK OF CRYSTALLIZATION OF LAST-STRIKE MASSECUITE Russian patent published in 2002 - IPC

FIELD: sugar industry. SUBSTANCE: method provides for feed of massecuite to the agitators - crystallizers and measurement of the content of dry substances, purity and crystals in the massecuite, dry substances and purity of the mother liquor. The process of crystallization is carried out by cooling of the massecuite at agitation until the final preset values of temperature, content of crystals in the massecuite, dry substances and purity of the mother liquor are attained, they are determined by reference to a nomograph plotted beforehand. The scale of purity of the mother liquor is located in the lower part of the homograph, and the scale of the content of dry substances of the mother liquor of boiled massecuite before discharging is located its upper part. Located in the Y-axis of the homograph are the scales of the content of crystals in the massecuite, dry substances of the mother liquor of the massecuite at the end of cooling, final cooling temperature. Some of the curves of the homograph characterize the variation of the content of massecuite dry substances in the process of boiling, and the other curves have a section concerning the purity of the massecuite in the process of boiling, and a section characterizing the massecuite purity in the process of cooling. Depending on the found values of the content of crystals in the massecuite, dry substances and purity of the mother liquor, the content of dry substances and the purity of the massecuite before feeding of the massecuite to the mixers-crystallizers are corrected for attaining the final preset values of cooling temperature, content of crystals in the massecuite, dry substances and purity of the mother liquor. EFFECT: accelerated process of check of crystallization of the laser-strike massecuite, improved crystal structure of it and enhanced sugar output. 1 dwg