牛奶无菌软包装机的无菌机制

Aseptic Mechanism of the Aseptic Milk Soft Packing Machine

本文首先介绍了无菌软包装机的无菌工艺 ,然后从理论上深入的分析了其中所用到几种灭菌方法 ;开机前 ,给整个设备的管道系统通入蒸汽 ,是为杀死细菌。开机后 ,蒸汽不能进入循环管道 ,而处于设备外围 ,对设备形成一圈无菌屏障 ;H2O2溶液灭菌是用在开机前 ,设备腔体喷H2O2水雾。开机后包装膜通过H2O2浴池 ,进行浸泡消毒 ;此设备内部装有若干根40W的紫外线灯管 ,开机期间配合H2O2对包装膜灭菌 ,停机后可保持设备内部的无菌。同时紫外线对人有害 ,使用时要非常注意 ;为了保证稳定的产品质量 ,无菌空气和清洁厂房是必须的。总之 ,通过以上分析 ,对于我们设计、生产类似的包装、灌装设备提供了典型范例。

In this article,firstly we talk about the aseptic technology of the aseptic milk soft packing maˉchine.Secondly,we analyses three ways used for killing the bacteria by steam,H 2 O 2 and ultraviolet rays.The steam should be put into all the pipe systembefore the machine runs.So it can kill all the bacteria.And then when the machine runs,the steam should be only put into the out pipe system.By doing so,the bacteria can be kept out of the machine.Before the machine runs,the H 2 O 2 should be sprayed into the machine.After the machine runs,the package materialshould go through the pool of H 2 O 2 about thirty minutes.In the machine,there are many ultraviolet rays lamps helping H 2 O 2 to kill the bacteˉria.We must use the ultraviolet rays carefully,because it does harm to our body.At the same time,aseptic air can keep the machine aseptic status and be produced according to the country , s standard.In order to have a good quality,a clean workˉroomis very necessary.In a word,many ways for killing bacteria are widely used in the machine.It , s useful for us to design and manufacture the similar machine in our country.