Cane juice clearing method and equipment

Abstract

The invention discloses a cane juice clearing method. The cane juice clearing method comprises the following steps of: preheating mixed juice to 45-55 DEG C; conveying the preheated mixed juice to a reactor; and adding lime and adjusting pH value to reach 5.6-6.6, wherein the adding amount of the lime accounts for 0.02-0.05% of the weight of the mixed juice; and filling tiny and uniform air bubbles by utilizing a bubble-making machine, adding a flocculant, uniformly mixing, introducing the mixture into a cone-shaped floating clearer to be subjected to air-flotation clarification so as to obtain primary clear juice and scum, conveying the primary clear juice into a stirrer, and adding a clearing agent and a flocculant at the same time; and introducing the primary clear juice added with the clearing agent and the flocculant into a thermal pipe-type floating clearer to be subjected to thermal-flotation clarification so as to separate secondary clear juice from scum. Equipment used in the cane juice clearing method comprises the reactor, the bubble-making machine, the cone-shaped floating clearer, the stirrer and the thermal pipe-type floating clearer. According to the invention, an air-flotation clarification technology and a thermal-flotation clarification technology are combined together, step-by-step, classified and comprehensive clarification treatment is carried out on cane juice, the use amount of the clearing agent during the sugar manufacturing process is reduced, the quality of white sugar product is promoted, and pollution of filter mud on the environment is alleviated.

Description

technical field [0001] The invention relates to an improvement of a sugarcane sugar production process, in particular to a method and equipment for clarification of cane juice. Background technique [0002] With the development of social economy and the improvement of people's living standards, food safety issues are attracting unprecedented attention from the society, and the quality control and supervision of food are becoming more and more strict. As an indispensable food in people's life, white granulated sugar has higher and higher quality requirements. my country's new standard GB317-2006 for white sugar has been officially promulgated and implemented, and the quality requirements for white sugar have been greatly improved, mainly in yarn-dyed and sulfur dioxide indicators. In the face of the implementation of the new standard, some factories are not prepared enough, and the product quality cannot keep up with the requirements of the new standard. As we all know, ther...

AI Technical Summary

Problems solved by technology

[0017] "Low Temperature Phosphorus Float - A New Process for Sugar Production in the 21st Century" (Huo Hanzhen, "Guangxi Light Industry", Issue 1, 2001, 21-26) , mentioned the cylindrical floater and the parallel floater. The main disadvantage of the cylindrical floater is that the scum floats upwards and the clear liquid flows downwards. The two move in reverse, and there is obvious interference, which greatly reduces the Separation speed; and the advection float cleaner effectively solves this problem, eliminates this interference, greatly improves the speed and efficiency of the two-phase separation process, and shortens the required time

[0018]The above two types of float cleaners are all air-floating float cleaners, the buoyancy of the condensate floating up comes from the mechanical filling of "bubbles", and the cleaning process is relatively simple

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