separators

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Separators in the cement industry

Introduction:

Separators are widely used in the cement industry and particularly in the grinding circuits.

But what are separators?

Basically, separators separate fine particles from coarse particles.

The fine particles are generally collected as finished product while the coarse particles are sent back for further grinding.

The trick is to make sure that the stream of coarse particles doesn’t contain any fine particles and, on the other hand,

to make sure that the stream of fine particles doesn’t contain any coarse particles.

An efficient separator prevents overgrinding and as consequence a waste of energy.

There are mainly two types of separators: static separators and dynamic separators

The biggest difference is that static separators don't have moving parts and can be adjusted only with mechanical modifications.

Static separators are divided in three sub-categories:

Cyclones

Static (or grit) separators

V-separators

Dynamic separators are also divided in three sub-categories:

Turbo separators (also called: first generation)

Cyclone separators (also called: second generation)

Cage type separators (also called: high efficiency separators and/or third generation)

Each type of separator will be developed in the following pages.

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