Desenvolvimento de um disco pelotizador em escala laboratorial utilizando controle em malha aberta
Carregando...
Data
2019-09-19
Autores
Título da Revista
ISSN da Revista
Título de Volume
Editor
Universidade Federal de Goiás
Resumo
Pelletizing was created with the purpose of using ores with particle size less than 0.15 mm,
obtaining the agglomerates by rolling the material in drums or discs. This work aimed to
develop an automated ore pelletizing equipment, in laboratory scale, with open loop control of
the inclination, the angular velocity of the equipment and the amount of water added to the
material, generating a product according to the selected size on the machine panel. All tests
were performed for thirty minutes, in batch, with five kilograms of material, using limestone
as the test mineral. The raw pellets were characterized in size by bench top vibratory
screening assays. Initially, the quantities were manually varied to infer their effect on the
dimensions of the generated product. Then the appropriate parameters were selected for the
generation of a small, medium and large product, according to the smallest variability
obtained in the tests. These parameters were later used in open-loop PLC programming,
automatically controlling the inclination, angular velocity, and amount of water fed to the
agglomeration parameters according to the size selected by the operator. The final tests were
performed with automated equipment confirming the efficiency of open loop control in the
generation of the three product sizes, affirmed by the approximation of the d 50 of each test
before and after automation.
Descrição
Palavras-chave
Pelotização, Disco pelotizador, Automação, Calcário, Pelletizing, Disc pelletizer, Automation, Limestone
Citação
GARCIA, Eloisa Angélica Silva. Desenvolvimento de um disco pelotizador em escala laboratorial utilizando controle em malha aberta. 2019. 100 f. Dissertação (Mestrado em Engenharia de Produção) - Universidade Federal de Goiás, Catalão, 2019.