Method for separating primary and secondary washed massecuite from high-grade washed massecuite

Abstract

The invention discloses a method for separating primary and secondary washed massecuite from high-grade washed massecuite, which is characterized by comprising the following steps: (1) feeding high-grade massecuite into a centrifugal massecuite separating machine, separating raw massecuite from the high-grade massecuite under the centrifugal separating action, and discharging the raw massecuite (95-98%); and (2) water washing and steam washing: transferring the centrifugal massecuite separating machine into a water washing and steam washing phase, and presetting the whole water washing phase to be 9 seconds through a computer controlled program, wherein the washed massecuite discharged within the first 4 or 5 seconds is primary washed massecuite, and the washed massecuite discharged within the last 5 or 4 seconds of the water washing phase and during the subsequent steam washing phase is secondary washed massecuite. According to the invention, the refining recovery rate and the first-grade product rate of white granulated sugar can be effectively improved.

Description

technical field [0001] The invention relates to a method for making sugar, in particular to a method for separating first-washed honey and second-washed honey. Background technique [0002] Nail-washing honey is the honey obtained by washing the nail cream with water and steam after the nail cream is centrifugally separated by a honey separator. The purpose of water washing and steam washing is to wash away the molasses attached to the surface of the first sugar granules, so as to obtain white granulated sugar whose color value meets the standard. In the process flow of the sugarcane sugar factory, the purity of nail-washed honey is about 77-81%, and there are two ways to use it in production: (1) Directly cook nail cream. It can significantly increase the sugar production rate and increase the total income, but the quality of the white granulated sugar will fluctuate due to the high or low purity of the nail-washed honey, especially when the raw materials are stored for a ...

AI Technical Summary

Problems solved by technology

It can significantly increase the sugar production rate and increase the total income, but the quality of the white granulated sugar will fluctuate due to the high or low purity of the nail-washed honey, especially when the raw materials are stored for a long time and the freshness is not enough or the clarification effect is not ideal. It will affect the absorption of massecuite, and at the same time make the color of massecuite darker, and finally cause the color value of white sugar to increase, which will affect the product quality;

Because its purity is higher than that of B paste (the purity of B paste is generally about 74%), it will cause high-purity materials to go to the next process and eventually be lost into orange water (waste honey), which will affect the recovery of smelting