Influence of the pulse wave in the stratification of high density particles in a JIG device
Journal Title: TecnoLógicas - Year 2016, Vol 19, Issue 36
Abstract
A study of particle motion subjected to four different pulsation profiles on a pulsated fluidized bed jig concentrator was carried out. The profiles used in the simulation were – sinusoidal, triangle, sawtooth-backward and sawtooth-forward. Two-dimensional local velocities of the water flow field were calculated from the continuity and momentum equations by CFD techniques implementing SIMPLE algorithm. The particle motion is modeled by a forces balance applying the Newton’s second law of motion. Liquid-solid interactions forces are calculated by the mathematical Euler-Lagrangian model extended to a particle suspension having a wide size and density distribution. To analyze the particle motion in jig, we derived a trajectory equation for the response time of particle that include virtual mass, gravity, pressure gradient, drag and Basset forces. The study demonstrates significant differences in the particle trajectories for various pulsation profiles applied to the boundary condition at the inlet to the jig chamber.
Authors and Affiliations
Manuel A. Ospina-Alarcón, Arturo B. Barientos-Ríos, Moisés O. Bustamante-Rua
Keywords
Related Articles
- EP ID EP401813
- DOI 10.22430/22565337.585
- Views 94
- Downloads 0
Dynamic drilling as an alternative method for determining the mechanical behavior of refractories materials
Ceramic materials hardness is usually determined by Vickers microindentation, which requires rigorous sample preparation and highly demanding analysis of traces turning this method difficult to use in i...
El nuevo modelo de evaluación para la categorización de las revistas científicas colombianas: ¿un indicador de calidad e impacto de las revistas en el área de ingeniería y tecnología?
En el año 2016, el Departamento Administrativo de Ciencia, Tecnología e Innovación (Colombiano) – Colciencias elaboró y publicó la Política para mejorar la calidad de las publicaciones científicas, en la que uno de los o...
Electricity generation potential from solid waste in three Colombian municipalities
This study estimates the electric energy production potential from municipal solid waste in Colombia. The Colombian municipalities of Pasto (Department of Nariño), Andes (Antioquia) and Guayatá (Boyacá...
Computational calculation of the magnetic properties of MnO/ZnO superlattice
First-principle calculations were performed in order to investigate the structural, electronic and magnetic properties of 1x1 MnO/ZnO superlattice in the wurtzite-type structure. The full-potential linearized augmented-p...
Photovoltaic Potential Estimation by Means of Data Mining in Four Colombian Cities
This work analyzes the photovoltaic potential of four cities in Colombia—Bogotá, Cúcuta, Manizales, and Pasto—using information collected in situ and data mining strategies. The methodology of this study is based on clus...