BLADED COAL DIFFUSER AND COAL LINE BALANCING DEVICE

摘要

A coal nozzle assembly for a pulverized coal burner comprises a coal nozzle having an upstream inlet and a downstream outlet. The coal nozzle has a wall having an inner surface and a diffuser positioned in the coal nozzle closer to the upstream inlet than the downstream outlet. The diffuser has a body with a tapered upstream portion, and has a plurality of blades extending outwardly from the body. A burner elbow is connected to the upstream inlet of the coal nozzle, and the burner elbow defines an observation portion and comprises a flow conditioner therein, the flow conditioner resulting in a pressure drop in the elbow. The flow conditioner is adapted to direct a coal rope toward the upstream portion of the diffuser. The assembly conditions a coal/air flow before it is introduced into a furnace.