搅拌设备在工作中产生的流动作用有哪些？_公司新闻_新闻资讯_自动搅拌一体车_自动搅拌一体机

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搅拌设备在工作中产生的流动作用有哪些？

所属分类：公司新闻发布时间：2021-07-29 来源：http://www.shanqijituan.cn/ 浏览量：0

自动搅拌一体机设备在一定功率及桨叶情势情况下，桨叶排液量以及压头可能通过转变桨叶的直径跟转速的匹配来调节，即大直径桨叶配以低转速的搅拌设备产生较高的流动作用跟较低的压头，而小直径桨叶配以高转速则产生较高的压头跟较低的流动作用。在搅拌槽中，要使微团彼此碰撞，的办法是供给足够的剪切速率。

Under the condition of certain power and blade situation, the discharge volume and pressure head of the blade of the automatic mixing all-in-one machine may be adjusted by changing the matching between the diameter of the blade and the rotating speed, that is, the mixing equipment with low rotating speed for large-diameter blade will produce higher flow effect and lower pressure head, while the mixing equipment with high rotating speed for small-diameter blade will produce higher pressure head and lower flow effect. In the stirred tank, the best way to make the pellets collide with each other is to supply sufficient shear rate.

从自动搅拌一体机来看，恰是因为流体速度差的存在，才使流体各层之间彼此混淆，因此，凡搅拌进程老是波及到流体剪切速率。剪切应力是一种力，是搅拌利用中气泡疏散跟液滴破碎等的真正起因。

From the perspective of the automatic mixing machine, it is precisely because of the existence of fluid velocity difference that the fluid layers are confused with each other. Therefore, the mixing process always affects the fluid shear rate. Shear stress is a kind of stress, which is the real cause of bubble evacuation and droplet breakage in stirring.

就桨叶区而言，无论何种浆型，当桨叶直径一定时，大剪切速率跟均匀剪切速率都随转速的进步而增加。但当转速一定时，大剪切速率跟均匀剪切速率与桨叶直径的关联与浆型有关。当转速一定时，径向型桨叶大剪切速率随桨叶直径的增加而增加，而均匀剪切速率与桨叶直径大小无关。

For the blade area, no matter what type of propeller, when the blade diameter is constant, the large shear rate and uniform shear rate increase with the progress of rotating speed. However, when the rotating speed is constant, the correlation between large shear rate and uniform shear rate and blade diameter is related to the pulp type. When the rotating speed is constant, the large shear rate of radial blade increases with the increase of blade diameter, while the uniform shear rate is independent of blade diameter.

这些有关桨叶区剪切速率的概念，在搅拌设备缩小及放大设计中须要特别小心。因小槽与大槽比较，小槽搅拌设备往往存在高转速、小桨叶直径及低叶尖速度等特点，而大槽搅拌设备往往存在低转速大桨叶直径及高叶尖速度等特点。

These concepts about the shear rate in the blade area need special care in the reduction and amplification design of mixing equipment. Due to the comparison between small tank and large tank, small tank mixing equipment often has the characteristics of high speed, small blade diameter and low blade tip speed, while large tank mixing equipment often has the characteristics of low speed, large blade diameter and high blade tip speed.

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