Patent ID: 6202575
Filing Date: 2001-03-20
Classification: F23C,F23D

Abstract:
In an air compartment of a corner windbox of a tangential firing system of a fossil fuel-fired furnace having a channel portion for the flow therethrough of air from an air delivery duct to an opening in the furnace, the channel portion having a longitudinal extent with an entrance end communicating with the air delivery duct and an exit end communicating with the furnace opening and having a generally parallelepiped cross sectional shape transverse to its longitudinal extent and being mounted in the corner windbox such that its longitudinal extent is parallel to a horizontal plane, an air compartment exit assembly comprising:a first means for guiding an air stream at the exit end of the channel portion, the first air stream guiding means having a surface portion which intersects the horizontal plane at an acute angle, the first air stream guiding means having a pair of opposed transverse edges, andmeans for mounting the first air stream guiding means relative to the channel portion for guiding thereby of an air stream passing from the channel portion through the furnace opening into the furnace, the mounting means including a pair of opposed side portions and means for securing each opposed side portion interiorly of the channel portion on a respective side thereof, the first air stream guiding means extending between the pair of opposed side portions with each transverse edge of the first air stream guiding means being secured to a respective one of the opposed side portions of the mounting means and the mounting means and the first air stream guiding means being disposed within the channel portion such that the leading edge of the first air stream guiding means is upstream of the furnace opening.