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Korea Process Technology

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Rotor/Stator Homogenizer 원리

Rotor/Stator Homogenizer 원리

(해외배송 가능상품)
기본 정보
상품명 Rotor/Stator Homogenizer 원리
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제품상세정보

Rotor/Stator Homogenizer 원리


Shear is the relative velocity of one layer of liquid compared to the adjacent layer. It is inversely proportional to viscosity. Shear rate is defined as the relative velocities of liquid layers across two surface.





The shear rate is influenced by

The tip(peripheral speed) of the rotor
The distance between the rotor/stator

The distance for the Korea Process Homogenizer is between 0.3 - 1mm

Tip speed (peripheral or circumferential speed) of the rotor is represented by



Tip speed varies according to the diameter of the rotor and the RPM of the motor.

Generally the faster the tip speed, the greater the processing capabilities of the system, depending on the final particle size required which will also influence the motor choice.
Liquid enters rotor/stator vertically.
Liquid momentum is changed through 90 and squeezed radially through stator slits due to centrifugal force.
Liquid enters the gap between the rotor/stator and is subjected to centrifugal thrust.
The fluid stream is cut off from entering the stator slits momentarily as the rotor and stator slits align during rotor rotation.
The liquid stream seeks an alternative path and at this point the liquid is subjected to three dimensional shear especially at the edge of the rotor pins.
Acceleration and breaking occurs with high shear rate and turbulence resulting in intense mixing.

       

Vu = tip speed (m/s)
Vs = shear rate (1/s)
fs = shear frequency (1/s)
n = rotor speed (1/min)
dr = rotor outside diameter (mm)
ds = distance between rotor and stator (ca 0.4~1mm depending on machine)
z = number of teeth of rotor


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