4results about "Sugar crystal separation" patented technology

Systems and methods for preparing compound crystals of erythritol and high-intensity sweeteners are provided. The systems may comprise a fermentation liquid storage tank (1), a ceramic membrane filtration system (2), a nanofiltration system (3), a first evaporator (4), a first crystallization kettle (5), a first centrifuge (6), a sugar dissolution tank (7), a decolorization tank (8), an ion exchange column (9), a blending tank (10), a second evaporator (11), a second crystallization kettle (12), a second centrifuge (13), a hot-air drying tank (14), a fluidized drying bed (15), and a finished product tank (16) sequentially connected through pipelines. The systems may further comprise a high-intensity sweetener storage tank (17), a primary mother liquor tank (18), and a secondary mother liquor tank (19). The finished product tank (16) may store a prepared compound crystallization product of the erythritol and the high-intensity sweetener.

The utility model discloses a separation device for producing L-arabinose, which comprises a crystallization box, a feeding pipe is fixedly arranged at the top of the crystallization box, the top of the feeding pipe is in threaded connection with a threaded cover, a cooling pipe is fixedly arranged on the surface of the crystallization box, and a temperature sensor is fixedly arranged at the top of the crystallization box. The detection end of the temperature sensor extends into the crystallization box, a connecting assembly is fixedly installed at the bottom of the crystallization box, a filter box is arranged at the bottom of the crystallization box through the connecting assembly, a vibration assembly is arranged at the top of the filter box, a frame is slidably connected into the filter box, and a filter plate is fixedly installed on the inner wall of the frame. A limiting assembly is arranged on the front side of the filtering box, and a discharging pipe is fixedly installed at the bottom of the filtering box. The L-arabinose crystals adhered to the crystallization box can be conveniently shaken off, so that the L-arabinose crystals adhered to the crystallization box can be conveniently cleaned, and the waste of the L-arabinose crystals is avoided.

The invention relates to a continuous method for obtaining a crystalline monosaccharide, comprising: continuous crystallization of the monosaccharide in a main crystallizer (10), wherein crystallization by evaporation and / or crystallization by cooling is carried out continuously on a crystal suspension in the main crystallizer in order to allow crystals of the monosaccharide to grow in the crystal suspension; separation of crystals of the monosaccharide out of the crystal suspension to obtain crystalline monosaccharide; continuous formation of a mass of crystallization magma for the main crystallizer (10) in a cascade, wherein the cascade comprises at least one first stage (13) and a final stage (15) connected in series and each stage comprises at least one pre-crystallizer (13A, 15A), wherein, in the at least one pre-crystallizer (13A) of the first stage (13), a solution is seeded with monosaccharide by means of monosaccharide seed crystals in order to obtain a pre-crystallization magma, and a mass of crystallization magma for the downstream stage (14, 15) is formed from the pre-crystallization magma by means of crystallization by cooling and / or crystallization by evaporation, and wherein a solution containing monosaccharide and a mass of crystallization magma from the upstream stage is supplied to the at least one pre-crystallizer (15A, 15B, 15C) of the final stage (15) to obtain a pre-crystallization magma, and in the at least one pre-crystallizer (15A, 15B, 15C) of the final stage (15) a mass of crystallization magma for the main crystallizer (10) is formed from the pre-crystallisation magma by means of crystallization by cooling and / or crystallization by evaporation; the continuous supply of a solution containing the monosaccharide and a mass of crystallization magma from the at least one pre-crystallizer (15A, 15B, 15C) of the final stage (15) of the cascade to the main crystallizer (10) to provide the crystal suspension.