Resumo

HERNANDEZ RAMIREZ, Gabriel; LEGRA LOBAINA, Arístides A.; RAMIREZ SERRANO, Beatriz  e  PEREZ GARCIA, Liudmila. Mathematical models to predict rheological parameters of lateritic hydromixtures. Min. Geol. [online]. 2017, vol.33, n.4, pp. 380-395. ISSN 1993-8012.

The present work had as objective to establish mathematical models that allow the prognosis of the rheological parameters of the lateritic pulp at concentrations of solids from 35% to 48%, temperature of the preheated hydromixture superior to 82 ° C and number of mineral between 3 and 16. Four samples of lateritic pulp were used in the study at different process locations. The results allowed defining that the plastic properties of the lateritic pulp in the conditions of this study conform to the Herschel-Bulkley model for real plastics. In addition, they show that for current operating conditions, even for new situations, UPD mathematical models have a greater ability to predict rheological parameters than least squares mathematical models.

Palavras-chave : lateritic hydromixtures; rheological parameters; mathematical models.

        · resumo em Espanhol     · texto em Espanhol     · Espanhol ( pdf )