Diseño de un sistema de control centralizado para un circuito de molienda en húmedo en la industria cementera Colombiana
DOI:
https://doi.org/10.15665/rp.v13i2.482Keywords:
Control de procesos, Circuitos de molienda, Comportamiento de mineral, Minerales industriales, Simulación, Modelación de circuitos de molienda.Abstract
El artículo presenta un estudio teórico acerca del diseño de un sistema de control multivariable para un
circuito de molienda en húmedo. Este diseño pretende aclarar algunos conceptos y suposiciones que
se realizan cuando se opera con circuitos de molienda-clasificación y a su vez, es una aproximación al
funcionamiento real de un circuito de molienda en la preparación de crudo en la industria cementera, teniendo en cuenta cuales son las variables más importantes del proceso. El modelo extraído del circuitode molienda - clasificación es simulado para describir el comportamiento dinámico de dos variables:
distribución de tamaño de partícula (DTP) y porcentaje de humedad. Por medio de la dinámica de estas variables es posible discutir varios aspectos del proceso, encontrar las variables más sensibles, las principales perturbaciones del sistema y determinar las dinámicas más importantes para encontrar un apareamiento que sea capaz de mantener el sistema en el punto de operación deseado. Finalmente,
se diseña un controlador centralizado y se simula para ver como es el comportamiento del circuito de molienda ante cambios brusco, tanto en el punto de operación como en las variables del proceso (flujo de alimento de mineral, flujos de agua y porcentaje de sólidos).
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