The invention relates to an aluminum
melting furnace capable of performing low-
oxygen high-temperature
combustion through
flue gas reflowing, and aims to effectively realize
temperature control, decrease the content of
nitrogen oxide and save energy in the melting process of the aluminum
melting furnace. The aluminum
melting furnace is characterized in that the top of an annular furnace wall surrounding the bottom of the furnace is provided with an annular arc-shaped top cover; a middle charging channel wall body is formed in a through hole in the middle part of the top cover; a charging and
flue gas discharging channel is formed inside the middle charging channel wall body; a
combustion melting
hearth is formed in the annular furnace wall; the middle part of an exhaust hood on the top of the charging and
flue gas discharging channel is provided with a furnace top cover; the periphery of the exhaust hood is provided with an exhaust hood outlet
pipe; a
combustor is arranged in the circumferential direction of the annular furnace wall; a
flue gas outlet on the inner wall of the charging channel wall body is connected with the charging and
flue gas discharging channel; the outer end of the
flue gas outlet is connected with an inner ring of a flue gas converging annular channel; a flue gas converging main
pipe communicating with an outer ring of the annular channel is connected with a flue gas reflow inlet through a flue gas reflow communication
pipe; the annular furnace wall is provided with an operation furnace door and a molten liquid discharging hole. By adopting the aluminum melting furnace, control of the
combustion temperature is realized, the combustion temperature is lowered, control of the content of the
nitrogen oxide is realized, and the using amount of
coal gas is reduced.