SILVA, C. L. Q.; http://lattes.cnpq.br/8576794049579040; SILVA, Cassandra Lucia Queiroz da.
Abstract:
The industry o f ore improvement has evolved as a basic economical activity, each more
efficient, insurance and ambiently correct. Numerous they are the equipments used at the
plants of ore improvement in which most of they are hydrocyclone The hydrocyclones
appeared as an efficient and economic alternative in the separation of particles for be
cheap, without mobile parts, low maintenance cost, operation simplicity and need a small
space for installation The main proposal of this work is the study of an appropriate
model of easy handling for the separation of hydrate obtaining a classification of particles
as the specifications demanded in the industry. Three configurations of the hydrocyclones
were used, nominated of hydrocyclone I , I I and I I I respectively, available in the industry
for classification of hydrate. They were made 8 run, led in industrial plant, where the
material used was a paste composed of caustic liqueur and crystals of hydrate. To
quantify the performance of hydrocyclone in each experiment it was necessary to
measure the pressure in the duct of the feeding, the flow in the duct of the feeding and
underflow, concentration in the feeding and underflow, beyond the attainment of the
grain sized distribution in the feeding and underflow. For estimate the efficiency three
models has been chosen: PLITT(1976), LEITH and LICHT (1972) and SANTANA
(2001). The simulations were developed in Microsoft Excel software with creation of
macros in VBA.The results showed that the model suggested by Plitt had an acceptable
fit, where was observed for hydrocyclone I I an efficiency o f up to 61%. The correlations
aided in a satisfactory way the estimate the efficiency of the hydrocyclone. It evidenced
that there was a good adjustment of the experimental data of the curve of grain sized
distribution o f the underflow with the foreseen curve.