principle of colloid mill?

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Sudha Thamarapalli's picture

Answer: 
In a colloidal mill, a rotor and a stator are present. Rotor rotates and the statori s stantionary. size reduction takes place when the liquid comes in between the gap present between rotor and the stator.[1] Disadvantage- More heat is produced. Ref: Lachman Leon, Lieberman H. A., Kanig J. L.The Theory and Practice of Industrial Pharmacy. 3 rd edition, Varghese Publishing House, Bombay, 42

Regards,

Sudha.T

VOLETI VIJAYA KUMAR's picture

Answer: 
Product is fed to the operating area of rotor, having a speed of 3000 rpm by specially designed feed device. The product is processed by high shear, pressures & friction between the stator & rotor, & is also subjected to intensive vibration which exerts their force on it by means of pressing & releasing actions. due to the slightly deviating tapering of the milling surfaces of stator & rotor, the angular gap becomes narrower towards the discharge section. This processed product continuously leaves the mill through the drain pipe, if required, it can be recirculated.

VIJAYA KUMAR.VOLETI M.Pharmacy

Asst Professor

Raos college of Pharamcy

Nellore

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