Cane juice neutralization reaction enhancing method based on multi-stage hydrodynamic cavitation

Abstract

The invention relates to a cane juice neutralization reaction enhancing method based on multi-stage hydrodynamic cavitation. The cane juice neutralization reaction enhancing method comprises a multi-stage hydrodynamic cavitation cane juice neutralization reaction enhancing procedure; the multi-stage hydrodynamic cavitation cane juice neutralization reaction enhancing procedure comprises the following step: cane juice obtained through a stoving neutralizer and a gas dispersing box is delivered into a multi-stage hydrodynamic cavitation cane juice neutralization reaction enhancing device through a pump so as to promote the continuous progress of cane juice neutralization reaction; the multi-stage hydrodynamic cavitation cane juice neutralization reaction enhancing device enables the cane juice to generate at least two-time hydrodynamic cavitation effect in a flowing process, and the one-time hydrodynamic cavitation effect indicates that the cane juice is subjected to a one-time contraction-expansion process. According to the cane juice neutralization reaction enhancing method based on multi-stage hydrodynamic cavitation, the adopted multi-stage hydrodynamic cavitation cane juice neutralization reaction enhancing device enables the cane juice to be subjected to multiple-time hydrodynamic cavitation effect in the multi-stage hydrodynamic cavitation cane juice neutralization reaction enhancing device, the neutralization reaction is more thoroughly carried out, the purity of clear juice is enhanced, the usage amount of lime and sulphur is reduced, and the SO2 content of the clear juice and a finished product is obviously lowered.

Description

technical field [0001] The invention relates to a method for strengthening the neutralization reaction of cane juice in the clarification process of cane juice by sulfite method, and belongs to the technical field of sugar cane sugar production. Background technique [0002] Cane juice clarification is a key link in the sugar production process. The clarification effect of cane juice is related to product quality, sugar recovery rate and the amount of clarifying agent, and ultimately affects the competitiveness of sugar factories. At present, the sulfurous method clarification process commonly used in sugar factories, by adding SO 2 , milk of lime and phosphoric acid to form calcium sulfite precipitate and calcium phosphate precipitate to remove colloids and pigments in sugarcane juice, so SO 2 and Ca(OH) 2 The reaction speed and degree of reaction in cane juice will directly affect the clarification and decolorization effect of mixed juice and the SO in clear juice 3 2－...

AI Technical Summary

Problems solved by technology

The sulfur fumigation neutralizer has the following major deficiencies: (1) sugarcane juice absorbs SO 2 Slow and insufficient; (2) Lime and SO 2 The reaction is not complete; (3) The particle size of calcium sulfite precipitation is not uniform, and the adsorption capacity is low

Therefore, the following problems often occur in the process of production and use: (1) The pH of sugarcane juice fluctuates greatly in the subsequent process, which affects the quality of sugar juice; (2) SO in clear juice 2 The large amount of residues will eventually lead to high sulfur content in the finished white granulated sugar, which will degrade the white granulated sugar; (3) The high residual calcium salt content in sugar juice will lead to high ash content in the product and serious fouling of equipment and pipelines; (4) Inorganic substances in sugar juice The content of CaSO is high, so that the honey making rate increases and the sugar recovery rate decreases; (5) due to CaSO 3 The particles are not firm and uniform, the adsorption and sedimentation performance is reduced, and the decolorization effect is poor; (6) Lime and SO 2 Incomplete response, SO 2 Inadequate absorption and utilization, large amount of sulfur, etc.

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