关键词:

碳素回转窑, 气体空间, 料层, 数学模型

Abstract:

Numerical simulations are conducted on the gas and solid spaces of the carbon rotary kiln using Fluent and Matlab.The temperature distributions for the gas, inner wall and solid in the kiln are predicted.The results show that the high temperature region in the kiln is in the zone where the volatiles burn massively.The injection of secondary or tertiary air causes obvious drop of gas temperature, but there is no obvious change of solid temperature.The predicted results of outer kiln wall temperature agree well with measurements.This model can be used to guide the optimum design and economic operation of carbon rotary kilns.

Key words:

碳素回转窑, 气体空间, 料层, 数学模型