Analysis of Pulverized Coal Combustion in Precalciner Based on Fluent Software

Abstract:

The pulverized coal combustion in precalciner in the cement plant with capacity of 5000t/d was investigated by numerical calculation using Fluent software. The standard k-ε model and particle stochastic trajectory model was proposed to simulate the three-dimension turbulence flow and pulverized coal movement respectively. The energy equation including P1 raditional model and non-premixed combustion model were applied to calculate the internal flow field of temperature and concentrations of volatile, CO, O₂ and CO₂. It indicates that the structure of precalciner is well designed and the pulverized coal can burn quickly after injecting from burners. The decomposition temperature that production needed is satisfied and the concentrations after combustion are accepted.

• Periodical: Applied Mechanics and Materials (Volumes 635-637)
• Pages: 40-43
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.635-637.40
• Online since: September 2014
• Authors: Li Long Dong, Wei Lin Zhao*, Ning Ning Xing
• Keywords: Combustion, Concentration, Numerical Simulation, Precalciner, Temperature

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