Annealing furnace combustion control method and device based on residual oxygen compensation

The invention relates to the technical field of cold rolling, in particular to an annealing furnace combustion control method based on residual oxygen compensation. The method comprises the steps thatthe upper limit value of the content of CO in smoke is set; the real-time content of the CO in the smoke is detected; the real-time content of the CO in the smoke is compared with the upper limit value of the CO content; when the real-time content of the CO in the smoke is larger than the upper limit value of the CO content, oxygen is injected into the smoke so that the air-fuel ratio of the smoke can be increased; when the CO content is smaller than or equal to the upper limit value of the CO content, oxygen stops being injected into the smoke. According to the annealing furnace combustion control method based on residual oxygen compensation, by comparing the real-time content of the CO in the smoke with the upper limit value of the CO content, when the real-time content of the CO in thesmoke is larger than the