Babcock & Wilcox Power Generation Group, Inc.

The Babcock & Wilcox Company

Richard A Wessel

David L Kraft

Eric Lynn Wells

Steven R Fry

John A Kulig

Daniel E Knopsnider, Jr

A carbon monoxide (CO) boiler or steam generator having a water cooled CO boiler floor with screen gas distribution inlet to enhance distribution of CO gas in a CO boiler. Either the front or rear wall tubes of the steam generator form an integral screen and the tubes continue, forming a membraned, gas tight enclosure. The floor has a 'knee' to redirect the incoming waste CO gas up into the integral screen. The screen may be provided with tube erosion shields to prevent erosion of the screen tubes and to control the distribution of waste gas across the plan area of the furnace.

Water cooled CO boiler floor with screen gas distribution inlet

A radiant synthesis gas (syngas) cooler used to contain and cool the synthesis gas produced by a coal gasification process used in an IGCC power plant employs a compact radial platen arrangement which is less prone to fouling and/or plugging issues.

Compact radial platen arrangement for radiant syngas cooler

A combustion air system particularly useful for Kraft process recovery boilers or soda process recovery boilers has a level of liquor air ports located above the black liquor guns, and multiple levels of tertiary air formed by substantially vertically aligned tertiary air ports located above the black liquor guns. The liquor air ports and the tertiary air ports are on the same opposing walls of the furnace and are substantially vertically aligned with air ports in the same wall at different levels. The liquor air ports are located just above the black liquor guns, within a range of about &#xbd; foot to about four feet. The tertiary air ports are laterally offset with respect to the tertiary air ports on the opposing wall of the furnace. The first tertiary air level is located a vertical distance in the range of about four feet to twelve feet above the elevation of liquor air ports, and the second and any additional tertiary air levels are located and spaced from an adjacent tertiary air level at regular spaced vertical intervals in the range of about four feet to eight feet. The vertically aligned and laterally offset tertiary air ports form a combustion air pattern of vertical sheets which travel across the width of the furnace to the opposing wall to carry smaller liquor particles to the walls of the furnace and reduce carryover and improve combustion efficiency.

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Massillon, OH, United States of America

Richard A Wessel