Solid-LiquidSeparation

固液分离技术

ISSN 0104-6632

Printed in Brazil .br/bjche

*To whom correspondence should be addressed

OF

*

Fax: +(55) (34) 239-4188,Bloco K,

CEP 38400-902, Uberlândia-MG, Brazil.

E-mail: masbarrozo@ufu.br

December 5, 2002 ; Accepted: September 23, 2004)

The objective of this work is to compare the

The experimental results

Solid-liquid separation;Hydrocyclone.

denominated the filtering hydrocyclone.

The hydrocyclone separates solid and liquid or

liquid and liquid by the difference in density between

the fluid and the material to be separated in this

equipment. Due to the fluid acquires a spiraling

motion caused by the tangent feeding, the material of

larger density is thrown against the wall of the

hydrocyclone and dragged to the underflow while

the one of smaller density proceeds for the overflow,

forming a free vortex (outer vortex) and a forced

vortex (inner vortex) in agreement with F igure 1.

The filtering hydrocyclone, wich is the subject of

this study, has another stream imposed of filtrate

originating in the filtration in the conical area. Figure

1 depicts a side view of the filtering hydrocyclone

and the trajectory of suspension for the conventional

hydrocyclone.

The objective of this work is to compare the

performances of filtering hydrocyclones of two

different designs, Bradley’s and Rietema’s

(Svarovsky, 1984, Rietema, 1961).

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