Coal rope distributor with replaceable wear components

摘要

A head assembly 52,152 for a pulverized coal nozzle includes a turning vane 54 or a curved vane 154 disposed within a pipe elbow. The vanes 54,154 are angled relative to the inlet port and the outlet port of the pipe elbow to redirect a stream of air and pulverized solid fuel particles from the inlet port 60,160 toward the outlet port 62,162. The coal rope-breaking vane 56 is pivotable about an axis to adjust an angle of the vanes relative to a stream of air and pulverized solid fuel particles from the inlet port 60,160. An adjustment bar 66 may connect to the vanes 56 and extend outward through the pipe elbow to allow the vanes 56 to be adjusted while the pulverized solid fuel particles flow through the head assembly 52. The pipe elbow may further include inspection ports 68,168 and a removable cover 70,170. The vanes may be attached to the removable cover 70,170 thus allowing them to be easily removed and replaced.

主权项

1. A head assembly for a pulverized coal nozzle, the head assembly comprising:
a pipe elbow including an inlet port and an outlet port; a turning vane disposed within the pipe elbow, the turning vane being angled relative to the inlet port and the outlet port to redirect a stream of air and pulverized coal particles from the inlet port toward the outlet port; and a coal rope-breaking vane disposed within the pipe elbow, the coal rope breaking vane being pivotable about an axis to adjust an angle of the coal rope-breaking vane relative to the stream of air and pulverized coal particles from the inlet; wherein the coal rope-breaking vane is disposed above the turning vane port.