Natural gas temperature rise control method for blow-in of fluidized bed furnace

The invention discloses a boiling furnace blow-in natural gas temperature rise control method which comprises the following steps: controlling a natural gas burner to ignite, and simultaneously introducing natural gas and combustion-supporting air into an ignition area; the air inlet volume ratio of natural gas to combustion-supporting air is adjusted, so that the backing material in the fluidized bed furnace is fully combusted; and adjusting the inclination angle of the natural gas nozzle, and controlling the temperature and length of flame, so that the temperature of the fluidized bed furnace is increased to the preset temperature from the initial temperature within the preset time, and the control of natural gas temperature rise during blow-in of the fluidized bed furnace is realized. A diesel oil gun in the prior art is replaced with the natural gas burner to achieve the heating process of blow-in of the fluidized bed furnace, the oxygen content in the heating process in the initial stage can be increased