The invention discloses a boiler provided with a dual-register pulverized
coal burner on the top, belonging to the technical field of boilers, and aiming at providing a U-shaped
flame boiler which is provided with the dual-register pulverized
coal burner on the top and is high in
combustion efficiency. According to the technical scheme, the boiler provided with the dual-register pulverized
coal burner on the top comprises a boiler body and an ash falling pit, wherein the ash falling pit is formed in the bottom of the boiler body, a membrane type water-cooling wall is arranged on the inner wall of the boiler body, a first partitioning wall is arranged on the top in the boiler body and is used for partitioning the boiler body into a
combustion chamber and a
waste gas chamber, the lower parts of the
combustion chamber and the
waste gas chamber are communicated with each other to form a first pair of
flue channels, the dual-register pulverized coal burner is arranged at the top of the
combustion chamber, a second partitioning wall is arranged at the bottom of the
waste gas chamber and is used for partitioning the waste
gas chamber into a left chamber and a right chamber, the upper parts of the left chamber and the right chamber are communicated with each other, and a
flue discharging channel is arranged at the bottom of the side wall of the right chamber. The boiler is high in heat
utilization rate and less in waste gas emission.