The application discloses a method for strengthening
cane juice
phosphoric acid floating cleaning based on ultrasonic
waves and relates to the technical field of
cane juice cleaning in
sugar industry. The method comprises the following steps: preheating mixed
cane juice, adding
phosphoric acid, applying high-frequency non-
cavitation ultrasonic treatment, adding exogenous
calcium phosphate microcrystal, continuing high-frequency non-
cavitation ultrasonic treatment, adding
lime milk and switching to low-frequency
cavitation ultrasonic treatment, supplementing
lime milk in batches to adjust pH in a gradient mode under the condition of low-frequency cavitation ultrasonic treatment, adding a synergistic aid and stirring, adding
polyacrylamide flocculating agent and switching to high-frequency ultrasonic treatment, reducing
power density to perform morphology locking in a
pulse mode, supplementing
phosphoric acid to continue high-frequency ultrasonic treatment, and sending the mixture into a floating cleaner to separate and float after standing and
ripening. The method is helpful to improving the
nucleation uniformity and floating performance of
calcium phosphate precipitation, reducing the additional foaming link and the chemical consumption by means of the cooperation of step-by-step variable parameter ultrasonic regulation, exogenous
crystal seed induction and synergistic aid synergism.