Furnace floor
AssigneeThe Babcock & Wilcox Company
InventorsJerry D. Blue, James D. Fleming
Life of this patent
Estimating the term…
Abstract
An improved floor for a recovery boiler furnace having a flat floor has a number of tubes in the floor immediately adjacent each of the sidewalls of the furnace oriented at an oblique angle to horizontal. A method of replacing the floor is provided as well.
Claims11
A method of improving the floor of a recovery boiler furnace having a horizontal water tube floor, a pair of sidewalls, a front wall, and a back wall to reduce steam blanketing and tube humping in the furnace floor, the method comprising the steps of:
- removing at least three water tubes of the water tube floor immediately adjacent to at least one of the sidewalls;
- and
- replacing the at least three water tubes of the water tube floor immediately adjacent to at least one of the sidewalls with at least three sloped water tubes, such that the angle each successive tube of the at least three sloped tubes after the first sloped tube nearest the sidewall forms with the horizontal tube floor decreases until the sloped tubes are horizontal, the at least three sloped tubes adjacent to at least one of the sidewalls and horizontal floor tubes forming a continuous furnace floor between the sidewalls and front and back tube walls.
A method of improving the floor of a recovery boiler furnace having a horizontal water tube floor, a pair of sidewalls, a front wall and a back wall to reduce steam blanketing and tube humping in the furnace floor, the method comprising the steps of:
- removing at least three water tubes of the water tube floor immediately adjacent each of the sidewalls;
- and
- replacing the at least three water tubes adjacent each sidewall with at least three sloped water tubes, such that the angle each successive tube of the at least three sloped tubes after the first sloped tube nearest the sidewall forms with the horizontal tube floor decreases until the sloped tubes are horizontal, the at least three sloped tubes adjacent each sidewall and horizontal floor tubes forming a continuous furnace floor between the sidewalls and front and back tube walls.
Dependencies are inferred from the claim text.