Low-temperature combustion control method and automatic control method for double-regenerative heating furnace

The invention provides a low-temperature combustion control method and an automatic control method for a double-heat-storage type heating furnace. The control method comprises the steps that S1, the control temperature is set according to the heating technology requirement in the production process; s2, in the heating process of the heating furnace, the actual hearth temperature T is detected in real time; and S3, according to the relation between the detected actual hearth temperature T and the control temperature, the starting and stopping mode for controlling a three-way reversing valve is set, and low-temperature combustion of the double-heat-storage type heating furnace is controlled. By changing the blast furnace gas double-heat-storage type low-temperature combustion control mode, the problem that blast furnace gas double-heat-storage type low-temperature combustion is difficult to control is solved, the quality and yield of finished materials are improved, impact on rolling line equipment is reduced,