Decoupling combustion furnace and decoupling combustion method
A combustion furnace and decoupling technology, applied in the field of raw coal combustion equipment, can solve the problems of difficulty in realizing large-scale decoupling combustion furnaces, decoupling combustion can only occur on one side, and space to increase the speed of pyrolysis and gasification, etc. Achieve the effect of increasing the decoupling combustion space and intensity, improving the ability to increase the load, and increasing the intensity of pyrolysis and gasification
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[0026] Due to the existence of fuel nitrogen inherent in coal, the coal gas produced by pyrolysis gasification contains certain nitrogen-containing substances, including NH 3 , HCN, etc. If the pyrolysis gasification gas is burned in an oxidizing atmosphere, these nitrogen-containing substances will be converted into nitrogen oxides. If the pyrolysis gasification gas is used as the reburning gas, the nitrogen-containing substances will x The reduction plays a promoting role. If the coal gas produced in the pyrolysis gasification chamber in the decoupling combustion furnace enters the semi-coke combustion zone, an appropriate amount of air is added to the appropriate position for premixing, so that the mixed gas can be burned under the condition that the excess air coefficient is less than 1, so that the main combustion NO produced in an oxidizing atmosphere x Reduction, the combusted mixed gas is mixed with the incoming secondary air and burned up, so that the emission of ni...
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