Browsing by Author "Espinoza Brito, Daniel Hilario"

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    Análisis y mejora de los parámetros responsables de la eficiencia en el proceso de defloculación en la molturación vía húmeda en una empresa cerámica
    (Universidad de Cuenca, 2021-07-23) Bernal Vásquez, Diego Fernando; Espinoza Brito, Daniel Hilario; Peñaherrera Palacios, Sandra Catalina
    The ideal of ceramic companies is to produce and market ceramic tiles with high quality standards, for which it is vital to jointly address the technological and economic aspects necessary to define the conditions of the processes. The objective of this research is to improve the deflocculant dosing process of a ceramic coating production company by evaluating the physicochemical characteristics of the water used as raw material in wet milling and the degree to which it affects deflocculation. For this purpose, the relationship between the physicochemical parameters of the water and the viscosity of the ceramic paste is analyzed and the optimum amount of deflocculant is calculated as a function of the water quality. In addition, the proper operation of the deflocculant dosing pumps was verified by evaluating the mechanical efficiency and conducting a performance indicator study. Therefore, based on the results of the research, the water used as raw material in the manufacture of stoneware pavements was categorized as a low-quality water, which causes negative effects on deflocculation efficiency due to high aluminum concentrations. Therefore, it was determined that the experimental limits for the physicochemical parameters of the water that have the greatest influence on the viscosity of the ceramic paste within the following control ranges: (723,47 - 1077,45) mg/l, (540 - 575) μΩ y (1,0794 - 1,1330) g/cm3 for aluminum concentration, electrolytic conductivity, and density respectively, the deflocculant optimums for ceramic paste densities of 1,64; 1,65; 1,66 y 1,67 g/cm3 were established at 0,8; 0,9; 1 y 1,1 % respectively of the deflocculant content as a percentage of the solid. In addition, the reliability analysis of the deflocculant drive pump based on a Weibull distribution showed that the actual pump reliability is 18 % indicating a wear phase and based on a mechanical energy balance, an efficiency of 0,68 % was determined.