Concentration production technology for glucose liquid

Abstract

A concentration production technology for glucose liquid comprises the following steps: heating glucose liquid in a plate heat exchanger; evaporating the heated liquid in an MVR (mechanical vapor recompression) evaporating unit; and evaporating the liquid in a triple-effect evaporator to obtain 70-75 % of liquid. Heat required by the triple-effect evaporator used in the technology is compression heat of flash evaporation waste gas. According to the technology, one-step glucose liquid concentration treatment in the prior art is changed into staged evaporation treatment; the MVR evaporating unit and the triple-effect evaporator are respectively used in two stages of treatment; and the heat source of the triple-effect evaporator is flash evaporation waste gas produced in other procedures, so as to realize zero consumption of live steam in the stage. Through implementation of the technology, the quality of crystallized glucose products is improved, the technology has the advantages of high efficiency, low consumption, energy conservation and environmental friendliness, and a zinc gluconate product produced through the technology has high concentration and meets the current national requirements on energy conservation and environmental protection of enterprises.

Description

technical field [0001] The invention relates to the technical field of glucose production, in particular to a production process for realizing the concentration of glucose feed liquid through an evaporator. Background technique [0002] In the production process of crystallized glucose, it is necessary to evaporate the sugar solution with a concentration of 30-35% to a concentration of 70%-75% and then use an evaporator to crystallize it. In the past production process, general evaporators were widely used to evaporate it. Concentration, this technology consumes 0.25-0.35 tons of steam for evaporating one ton of water, and the waste gas produced is directly cooled into condensed water, which cannot make reasonable use of the remaining heat, which increases the production cost per ton of sugar and also It has caused an extreme waste of resources, which does not meet the current national requirements for energy conservation and environmental protection of enterprises. Conten...

AI Technical Summary

Problems solved by technology

[0002] In the production process of crystallized glucose, it is necessary to evaporate the sugar liquid with a concentration of 30-35% to a concentration of 70%-75% and then crystallize it with an evaporator. In the past production process, general evaporators were widely used to evaporate it. Concentration, this technology consumes 0.25-0.35 tons of steam for evaporating one ton of water, and the waste gas generated is directly cooled into condensed water, which cannot make reasonable use of the remaining heat, which increases the production cost per ton of sugar and also It has caused an extreme waste of resources, which does not meet the current national requirements for energy conservation and environmental protection of enterprises.

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