FAT RICH DARIY PRODUCTSDT-213PREPARED BY B.Tech 2nd year StudentsRoll no.- (23 to 30)

the outline

What is Cream Separator

Working principlesExplanation of its

operationCare and maintenance

of cream separator

of our presentation

What is Cream SeparatorA Dairy Machine used

to separate fresh milk into cream and skim milk

Devised by Gustaf de Laval of Sweden in 1880

Based on principle of centrifugal force

working principleshow a Cream Separator works

• separates cream and skim milk in a continuous process• uses extremely high centrifugal forces• denser particles (Skim milk) are forced outwards against the solid bowl wall• less dense particles (Cream) form concentric inner layers• inserting special plates provides additional surface settling area

Explanation of its operation Whole milk is conducted into bowl

commonly through a central tubular shaft. Spindle rotates the bowl at the rate of

6,000 to 9,000 rpm and a series of identical conical disks separate the milk into vertical layers.

The heavier skim milk collects on the outer circumference of rotating bowl while lighter cream tends to remain at center.

The pressure of whole milk supply above the bowl then forces the cream and skim milk out of machine and into separate collecting vessels.

Care and maintenance of cream separatorCream Screw Adjustment

The cream screw regulates the ratio of skim milk to cream.It should be adjusted so that fat content is cream is about 33%.

If cream is too thin( i.e. fat content is too low), it reduces the quantity of separated milk available for other uses and increases the volume of cream to be handled. Low-fat cream is also more difficult to churn efficiently, i.e. butter production is reduced

Cont.

CLEANING Flush the separator with warm skim milk or warm

water. Flush the bowl with clean water until the discharge

from the skim milk spout is clean. Dismantle the bowl and all parts (bowl, bowl cover,

discharge spouts, float, supply tank and buckets) and wash with a brush, hot water and detergent (Bleach 4%).

Rinse with very hot water and allow the parts to drain in a clean place protected from dirt and flies. This should be done after each use.

Cont.

Oiling Frequent oiling is not necessary. When oiling is necessary, remove screw in gear

cover. Put enough oil in oil holes, also in screw hole. Do not use too much oil, or it will just be wasted.

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