亚博买球

一种糖汁澄清方法

2016-12-23 18:07:59 admin 106

一种糖汁澄清的方法,属于制糖工业糖汁澄清技术领域。所述糖汁澄清方法是糖汁气浮澄清和膜分离耦合技术对糖汁进行清净,包括糖汁气浮澄清前处理、糖汁气浮澄清、糖汁膜分离系统三道主要工序;首先对糖汁进行气浮澄清前处理,即将糖汁进行滤网过滤、添加石灰、磷酸调整pH值和一级加热处理,处理后糖汁进入气浮澄清系统进行处理,将糖汁中网络的非糖分除去,气浮澄清得到的浮清糖汁首先经过糖汁过滤系统处理,然后进入高效的糖汁膜分离系统中澄清,最终得到澄清质量不低于传统制糖工艺的清糖汁,由此完成糖汁的澄清过程。本发明工艺过程主要采用气浮澄清和膜分离耦合技术,方法简单先进,糖汁停留时间短,蔗糖分损失少,澄清稳定可控,澄清效率高,是糖厂实现节能与清洁生产,实施可持续发展的有效措施,具有较好的应用前景。权利要求(6)1.一种糖汁澄清方法,包括糖汁气浮澄清前处理、糖汁气浮澄清、糖汁膜分离系统三道主要工序,其特征在于:首先对糖汁进行气浮澄清前处理,即将糖汁进行滤网过滤、添加石灰、磷酸调整pH值和一级加热处理,处理后糖汁进入糖汁气浮澄清系统进行处理,即预处理后糖汁经过再次添加石灰或磷酸调整pH值、全部糖汁或部分糖汁制泡、添加絮凝剂和澄清剂,将糖汁中的非糖分网络除去,气浮澄清处理系统得到的浮清糖汁首先经过糖汁过滤系统处理,然后进入高效的糖汁膜分离系统中澄清,最终得到澄清质量不低于传统制糖工艺的清糖汁,由此完成糖汁的澄清过程。2.根据权利要求1所述的一种糖汁澄清方法,其特征在于:所述的糖汁包括甘蔗初压汁、甘蔗混合汁、甘蔗渗出汁、甜菜渗出汁、中和汁、滤汁、蒸发过程的中间糖汁和浓缩糖浆。3.根据权利要求1所述的一种糖汁澄清方法,其特征在于:所述的糖汁进行气浮澄清前处理滤网过滤系统的滤网目数为100~800目,添加石灰和磷酸控制pH值在6.0~11.0范围,磷酸值以每公斤糖汁含P2O5毫克数计算在200~450mg范围,一次加热后温度在50~65°C范围。4.根据权利要求1所述的一种糖汁澄清方法,其特征在于:所述的糖汁气浮澄清系统中再次加石灰工艺指标控制是PH值在7.0~8.5范围,糖汁中磷酸总值以每公斤糖汁含P2O5毫克数计算在400~500mg范围,所用的絮凝剂为糖用高分子絮凝剂,絮凝剂用量对糖汁量为2~lOppm,糖用澄清剂用量对糖汁量0.1%~10%。5.根据权利要求1所述的一种糖汁澄清方法,其特征在于:所述的气浮澄清后糖汁过滤系统的过滤精度在5~40微米范围,糖汁膜分离系统的过滤膜精度在分子量2000~膜孔径2微米范围,滤网过滤系统和膜分离系统适应温度在45~110度范围,处理糖汁锤度在10~78°Bx范围。6.根据权利要求1所述的一种糖汁澄清方法,其特征在于:所述的糖汁澄清方法得到的清糖汁质量不低于传统制糖澄清方法得到的清糖汁质量。说明

YIZHONGTANGZHICHENGQINGFANGFA

JISHULINGYU

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JUTISHISHIFANGSHI

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