亚硫酸法糖厂中和汁絮凝的破碎与重絮实验研究  

Experimental Investigation of Fragmentation and Re-aggregation in the Flocculation of Neutralized Cane Juice in Sugar Factory with Sulfitation

作　　者：梁勇[1] 向敏[2] 任民红 杨才誉[1] 蒙丽丹 王达 宁方尧[1] 雷光鸿 LIANG Yong;XIANG Min;REN Minhong;YANG Caiyu;MENG Lidan;WANG Da;NING Fangyao;LEI Guanghong(Guangxi Vocational&Technical Institute of Industry,Nanning 530001,Guangxi,China;Chongqing Energy College,Chongqing 402260,China)

机构地区：[1]广西工业职业技术学院,广西南宁530001 [2]重庆能源职业学院,重庆402260

出　　处：《甘蔗糖业》2025年第1期44-50,共7页Sugarcane and Canesugar

基　　金：广西自然科学青年基金项目(2024GXNSFBA010332);广西教育厅中青年科研基金项目(2023KY1315)。

摘　　要：在100℃下对甘蔗亚硫酸法糖厂中和汁进行不同搅拌速度下的絮凝实验。通过测定絮凝体尺度及分形随时间的变化,研究絮凝体的破碎与重絮规律,建立絮凝动力学。结果显示,在高温条件下,中和汁在快速混合中迅速完成絮凝,继续搅拌对絮体产生破碎和重絮作用,絮体当量直径减小,孔隙率减小。反应平衡后,在17 s^(-1)<G<41 s^(-1)范围内,絮体当量直径随G增加先增大后减小,二维分形维数值不断增大。设立无因次相对当量直径D和剪切时间Gt,对实验数据进行回归得到方程D=exp(-0.0035Gt)。Flocculation experiments were conducted on the neutralized juice of sugarcane sulfite sugar factory at different stirring speeds at 100℃.By measuring the scale and fractal changes of flocs over time,the fragmentation and flocculation laws of flocs are studied,and flocculation kinetics are established.The results showed that under high temperature conditions,the neutralization juice quickly completed flocculation in rapid mixing,and continued stirring caused fragmentation and heavy flocculation of the flocs,resulting in a decrease in the equivalent diameter of the flocs and a decrease in porosity.After the reaction equilibrium,within the range of 17 s^(-1)<G<41 s^(-1),the equivalent diameter of flocs increases first and then decreases with the increase of G,and the two-dimensional fractal dimension value continues to increase.This article establishes dimensionless relative equivalent diameter D and shear time Gt,and regress the experimental data to obtain the equation D=exp(-0.0035Gt).

关 键 词：蔗汁澄清 絮凝 破碎 重絮 

分 类 号：TS244.2[轻工技术与工程—制糖工程]