Alstom Technology Limited

General Electric Technology Gmbh

Daniel J Adam

Thomas J Campanelli

Paul Mackenzie Colson

Oliver G Briggs

Christopher Daniel Curl

Wendell H Mills

Dai Q Dau

James P Sutton

Paul M Bovat, Jr

Kevin J Grzebien

Dia Quang Dau

Oliver G Briggs Jr

Chrisopher D Curl

A head assembly for a pulverized coal nozzle includes removeable wear-resistant inserts having vanes. The vanes may be flat or curved to direct a stream of air and pulverized solid fuel particles from the inlet port toward the outlet port. The curved vanes curve in two dimensions to evenly distribute the stream of air and pulverized solid fuel away from the outer surfaces reducing wear and corrosion. The pipe elbow has a removable cover that allows for easy access. The vanes are attached to a wear-resistant replaceable liner thus allowing them to be easily removed and replaced. The wear-resistant liner may be made from several parts for ease of removal and replacement.

Coal rope distributor with replaceable wear components

A head assemblyfor a pulverized coal nozzle includes removeable wear-resistant inserts having vanes. The vanesmay be flat or curved to direct a stream of air and pulverized solid fuel particles from the inlet porttoward the outlet port. The curved vanescurve in two dimensions to evenly distribute the stream of air and pulverized solid fuel away from the outer surfaces reducing wear and corrosion. The pipe elbow has a removable coverthat allows for easy access. The vanes are attached to a wear-resistant replaceable linerthus allowing them to be easily removed and replaced. The wear-resistant linermay be made from several partsfor ease of removal and replacement.

A head assemblyfor a pulverized coal nozzle includes a turning vaneor a curved vanedisposed within a pipe elbow. The vanesare 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 porttoward the outlet port. The coal rope-breaking vaneis 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. An adjustment barmay connect to the vanesand extend outward through the pipe elbow to allow the vanesto be adjusted while the pulverized solid fuel particles flow through the head assembly. The pipe elbow may further include inspection portsand a removable cover. The vanes may be attached to the removable coverthus allowing them to be easily removed and replaced.

Disclosed herein is an apparatus and method of constructing a stationary wear-resistant stationary nozzleand/or nozzle linerfor solid fueled furnaces. A transition sectionis constructed from several flat pieces-several that may have identical starting shapes. This reduces manufacturing complexity and costs. All pieces-have a high-wear weld overlay on their inner surface. Corner pieces-are folded into a corner shape at an outlet edgeand rolled into a curved shape at an inlet edge. Horizontaland vertical piecesare only rolled at an inlet edge. The pieces have seam tabalong longitudinal edges that are welded together to construct a transition section. The transition sectionmay be used as a liner to reduce wear in an existing stationary nozzle or may be constructed to be connected to an inlet pieceto form a strong, wear-resistant coal nozzle

Method of constructing a stationary coal nozzle

Growing community of inventors

East Canaan, CT, United States of America

Daniel J Adam