| 摘要 |
FIELD: food industry.SUBSTANCE: method envisages first crystallisation fillmass division with fillmass loading into a filtering batch centrifuge rotor till the layer thickness is equal to 150 mm, first runoff separation from sugar crystals, the latter washing with second runoff separation and slight drying of sugar crystals before unloading out of the rotor to an amount of 0.8-1.5% of its weight. Fillmass being loaded is preliminarily diluted with syrup containing hydrogen peroxide in an amount of 0.003-0.009% of the sugar weight till dry substances content is equal to 91.7-92.5%; temperature is maintained at a level of 68-72°C for the fillmass minimum viscosity. Crystals washing is started after separation of 95-98% of first runoff; this operation is performed in two stages: at first - with sugar-containing solution with dry substances concentration equal to 60-75% in an amount of 2.0-3.5% of the fillmass weight at a temperature of 70-80°C, then - with 80-95°C washwater in an amount of 0.5-1.5% of the fillmass weight.EFFECT: increase of sugar yield from the centrifuge and sugar quality indices improvement. |
