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发明公开
CN106047420A 一种煤粉均布装置 无效 - 驳回 转让

一种煤粉均布装置
摘要：
本发明公开了一种煤粉均布装置，设置于烧嘴的头部，其包括：氧气输送管；多个煤粉输送管，固定在所述氧气输送管的外圆周表面上；以及冷却装置，布置在所述多个煤粉输送管的周围，其内侧沿着煤粉输出的方向与所述氧气输送管的出口处形成一段渐缩的导流通道，其中所述煤粉均布装置还包括：多个分布筋，布置在所述煤粉输送管与所述导流通道之间，其中每个分布筋设置为螺旋式筋条结构而固定在所述氧气输送管的外圆周表面上，多个分布筋之间构成多条螺旋通道。本发明的技术效果是：提高了煤粉在烧嘴出口处的分布均匀性，使得煤粉燃烧过程更加稳定，从而避免了局部偏烧的问题。
摘要（英）：

The invention discloses a uniform pulverized-coal distribution device. The uniform pulverized-coal distribution device is arranged at the head portion of a nozzle and comprises an oxygen delivery pipe, multiple pulverized-coal delivery pipes fixed to the outer circumferential surface of the oxygen delivery pipe and a cooling device arranged around the multiple pulverized-coal delivery pipes, wherein a gradually shrunk guide channel is formed in the inner side in the pulverized coal output direction and at the outlet position of the oxygen delivery pipe. The uniform pulverized-coal distribution device further comprises multiple distribution ribs arranged between the pulverized-coal delivery pipes and the guide channel, wherein each distribution rib is of a spiral rib structure and is fixed to the outer circumferential surface of the oxygen delivery pipe, and multiple spiral channels are formed among the multiple distribution ribs. The uniform pulverized-coal distribution device has the advantages that the pulverized-coal distribution uniformity at the outlet position of the nozzle is improved, the pulverized-coal combustion process can be more stable, and accordingly the problem of local deviant combustion is avoided.

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