A method for increasing the flame stability in the case of coal dust combustion apparatuses and apparatus for performing the method

摘要

A method for increasing the flame stability in the case of a pulverized coal furnace, in the fluidized coal dust is mixed with combustion air and is burnt out, characterised in that one of a main flame separate primary flame is generated and the coal dust into the primary flame, where it is preheated and then into a flow of hot, low-oxygen combustion exhaust gas is introduced, in which it without further to be ignited again, is heated, wherein the volatile constituents, extending from it, and the volatile constituents and the heated coal dust then be mixed with the combustion air and the main flame generating.