A multifunctional laboratory fixed-bed for experimental simulation of chain-grate boiler

摘要

A laboratory fixed-bed has been designed and used to simulate the coal or biomass combustion in industrial chain-grate boiler. The coal or biomass in the fixed-bed is heated in a transient mode to provide a Lagrangian simulation of the time, temperature, and environmental history experienced by small section of coal or biomass, which is in the fuel bed in a large chain-grate boiler. The temperature in furnace, residence time of furnace gases, the NO_x concentration of flue gases, and the soot concentration of flue gases has been measured. It is convenient and inexpensive research method for combustion in chain-grate boiler.