Continuously controllable acesulfame crystallization device

Abstract

The invention discloses a continuously controllable acesulfame crystallization device. The continuously controllable acesulfame crystallization device comprises: a crystal growing device, a first conveying pump, a first-grade crystallizer, a second conveying pump, a second-grade crystallizer, a third conveying pump, a thickening device, a fourth conveying pump and a crystal slurry tank; the crystal growing device comprises at least one crystal growing kettle; a discharging hole of each crystal growing kettle is connected with a stop valve in series and then is communicated with an inlet of the first conveying pump; the first-grade crystallizer comprises a first-grade crystallizing kettle, a first-grade cooler and a first-grade circulating pump; an outlet of the first conveying pump is communicated with a lower circulating hole of the first-grade crystallizer; the second-grade crystallizer comprises a second-grade crystallizing kettle, a second-grade cooler and a second-grade circulating pump; the discharging hole of the first-grade crystallizing kettle is communicated with the inlet of the second conveying pump; the outlet of the second conveying pump is communicated with the lower circulating hole of the second-grade crystallizer; the discharging hole of the second-grade crystallizing kettle is communicated with the thickening device through the third conveying pump; the outlet of the thickening device is communicated with the inlet of the crystal slurry tank through the fourth conveying pump. The crystallization device provided by the invention is high in production efficiency and an obtained acesulfame crystal has good quality and large granularity.

Description

technical field [0001] The invention relates to the field of acesulfame production equipment, in particular to an acesulfame crystallization device. Background technique [0002] Acesulfame Potassium is a food sweetener, trade name acesulfame potassium. The main crystallization method of acesulfame potassium is single-pot cooling crystallization. Single-pot cooling crystallization means that the entire crystallization process of acesulfame potassium is completed in one crystallization kettle. The disadvantages of single-pot cooling crystallization are: (1) Since the entire crystallization process is completed in one crystallization tank, only after the crystallization of the acesulfame potassium mother liquor in the crystallization kettle is discharged can new acesulfame potassium mother liquor be re-added for crystallization. solid and poor production continuity, low production efficiency; (2) Due to poor fluidity, the crystals in the kettle are easy to agglomerate, thus r...

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Problems solved by technology

The disadvantages of single-pot cooling crystallization are: (1) Since the entire crystallization process is completed in one crystallization tank, only after the crystallization of the acesulfame potassium mother liquor in the crystallization kettle is discharged can new acesulfame potassium mother liquor be re-added for crystallization. solid and poor production continuity, low production efficiency; (2) Due to poor fluidity, the crystals in the kettle are easy to agglomerate, thus requiring faster stirring to prevent crystal agglomeration, which is easy to break the crystals , which will greatly reduce the quality and particle size of acesulfame potassium crystals

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