Vertical continuous-cooling crystallization machine

Abstract

The invention discloses a vertical continuous-cooling crystallization machine. The vertical continuous-cooling crystallization machine comprises an outer cylinder and a spiral stirring paddle. The spiral stirring paddle is erected in the outer cylinder. The outer wall of the outer cylinder is provided with a cooling water jacket. The spiral stirring paddle is arranged in a top suspension way. A shaft of the spiral stirring paddle has a sleeve-type hollow shaft structure. Cavities are formed in blades of the spiral stirring paddle. Upper and low ends of each one of the cavities are communicated with the shaft having the sleeve-type hollow shaft structure. The vertical continuous-cooling crystallization machine has the advantages that 1, a housing jacket and the hollow blades of the spiral stirring paddle are combined and cooling water is fed into the combined structures simultaneously so that a heat exchange area is greatly improved and a crystal yield is greatly improved; 2, the spiral stirring paddle can rotate by 360 degrees so that no-dead corner medium cooling is realized, formation of crystal nucleuses and stable and natural growth of crystals are promoted, a cooling rate is improved and product quality stability is guaranteed; and 3, intelligent configuration improves productivity and reduces a cost.

Description

technical field [0001] The invention relates to the technical field of crystallization devices, in particular to a vertical continuous cooling crystallizer, which is suitable for the crystallization of products such as glucose, fructose, maltose, xylitol, sorbitol, and sucrose. Background technique [0002] At present, domestic crystalline sugar is developing rapidly, and the demand for large-scale vertical continuous cooling crystallizers has soared. People pay more attention to the vertical continuous cooling crystallizer because of its floor space saving and intelligence. However, insufficient attention has been paid to the quality stability and yield of the products produced by the vertical continuous cooling crystallizer. Similar products in the existing market generally have defects such as medium fluidity, heat balance, and unreasonable structural design. [0003] For example, the vertical continuous crystallizer of Shanghai Zhaoguang Bioengineering Co., Ltd., the s...

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Problems solved by technology

The yield of the crystallizer is low, and there are problems such as uneven heat transfer area.

[0004] Another example is the vertical continuous crystallizer of Xi'an Aerospace Warwick Chemical Bioengineering Co., Ltd. The stirring device consists of three crystallization chambers composed of circular pipes, combined with six hydraulic tops, to reciprocate up and down; the defect is that the cooling area is not enough, and the medium is cooled and stirred. Unevenness, resulting in unstable product quality, poor continuity and other issues

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