STUDY OF CONDITIONS WITHOUT FOAM CONCENTRATING LACRIC ROOT EXTRACT

Abstract

The process of evaporation of licorice root extract is accompanied by violent pricing. Evaporation of licorice root extract in existing industrial evaporators of any design can be carried out only if the operating parameters and evaporation processes are investigated, ensuring effective non-foaming evaporation. In the foam mode, entrainment increases significantly. The generation of foam and the entrainment of droplets are jointly influenced by the released surface energy during the destruction of bubbles and the kinetic energy of the flow that tears off the foam and droplets. The number of large droplets and the height of their toss increases. The level of foam generated can be significant. In this case, due to a reduction in the height of the vapor space, exceeding the critical one, a sharp increase in vapor moisture occurs, and foam flocs can be carried away. A further increase in the vapor velocity leads to an almost complete disappearance of the foam; however, during this period, a third boiling crisis occurs, accompanied by an increase in vapor moisture and a decrease in liquid consumption.