Boiler control device

The utility model discloses a boiler control device, and relates to the field of boiler control. The device comprises an ash distributor, an ash return nozzle, a combustion chamber, a combustor, a chimney, an ash conveying gas source and an ash silo, a port a of the ash distributor is connected with the ash conveying gas source, a port b of the ash distributor is connected with the ash silo, and a port c of the ash distributor is connected with one end of the ash return nozzle; one end of the ash return nozzle is connected to the combustion chamber, the other end of the ash return nozzle is connected to the combustion chamber, the combustor is also connected to the combustion chamber, and the included angle a between the center line of the ash return nozzle and the vertical projection of the center line of a fuel nozzle of the combustor ranges from 5 degrees to 90 degrees; and the combustion chamber is also connected with the chimney. According to the utility model, the temperature control means of the boiler