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生物發酵分好氧型發酵和厭氧型發酵2種 好氧型發酵主要有谷氨酸、檸檬酸、酶制劑、抗生素、功能糖、酵母等發酵需要通氧的攪拌,這類攪拌需要將空氣不停的通入發酵液種以提供微生物需要的氧。主要設備有種子罐,發酵罐,配料罐、提取罐、結晶罐等。 发酵罐、种子罐:搅拌设备在好氧发酵中主要目的是使空气和发酵液充分混合,促使氧在发酵液充分溶解,以保证供给微生物的发酵繁殖、发酵所需要的氧气。采用底层径向形式攪拌器和上层轴向流攪拌器相结合的组合方式,既保证空气被剪切分散又保证气液固能充分的混合提高溶氧率减少用气量,降低搅拌和鼓风机的能耗。 主要攪拌器形式有:各种圆盘涡轮式(HCY,JCY,BTD、PDY、ZDY),宽叶旋桨式(KSX、KCX) 配料罐:主要搅拌目的是固液均匀混合防止沉淀。使用桨叶形式有:旋桨式ZCX,斜叶桨式(XJ、HJ),开启涡轮式(XKK,MK,ZK)等具有轴向流作用的搅拌桨叶。 提取罐:主要
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The work of Robert Lindström Zetterberg Art Director & Designer Designchapel™ is the work of the Swedish designer & art director Robert Lindström Zetterberg, with over two decades in the industry of creativity, interaction and innovation.In 2003, he founded North Kingdom after working for five years as an Interactive Art Director at a Swedish award-winning gaming company called Paregos. Since then
Posted on: November 24, 2005 In: Design, CSS, Typography Comments closed In the Web Standards community we hear the words 'Semantic Markup' thrown around a lot as a concept—the right thing to do— but I know a lot of designers who are trying to learn this stuff are being confused by the whole 'semantic thing'. It's a difficult task for a designer, who primarily thinks very visually, to relate to
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