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Which element Influent the Mixing time

input time:2018-08-17 09:59:32    hits:

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Operating parameter Influence on mixing time
 
Mixing volume
 
A higher mixing volume will lead to higher mixing time
But doubling the volume, does not mean doubling the mixing time
For mixers at Fr>1, after a certain volume, mixing time will be almost constant
Note : a mixer should not be over-filled otherwise the mixing may even become impossible
 
Mixing speed
 
A higher mixing speed usually gives a shorter mixing time
Influence on the powder should however be considered (powder breakage)

 
Froude number
弗劳德数
Higher Fr number should give shorter mixing time
Powder breakage will be a concern when Fr >>1
高的弗劳德数会降低混合时间,但是当弗劳德数远远大于1的时候,粉体被破坏的可能性大大增强
Solids type
固体粉体类型
The more the particle sizes of the mix consituents are different, the more difficult it will be to mix
粉体的颗粒大小差异性越大,越难混合
 Mixing time is also dependent on the sequence and place of filling the ingredients. In particular, the position of addition of micro ingredients is of prime importance. In case the micro ingredients are added on the side of a mixer, the mixing time can be greatly impacted. As a good practice, processes must be designed to have the small, minor and micro ingredients introduced in the middle of the mixer, in any case in the "active" area of the blender.