OVER FIRE ARRANGEMENT AND METHOD

The present invention relates to an over fire air arrangement for a furnace (1), the furnace (1) having opposing first wall (4) and second wall (6) and opposing first side wall (5) and second side wall (7) between the first and second walls (4, 6) for forming a furnace enclosure (2). The over fire air arrangement comprising at least one first over fire air port (20) provided to the first wall (4)for supplying a first over fire air flow (40) into the furnace (1) and at least one first additional over fire air port (50) provided to at least one of the first and second side walls (5, 7) in the vicinity of the first wall (4), the at least one first additional over fire air port (50) being arranged to supplying a first additional over fire air flow (60) into the furnace (1) transversely to thefirst over fire air flow (40). 本发明涉及种用于炉(1)的燃尽风装置，该炉(1)具有相对的第壁(4)和第二壁(6)以及位于第壁和第二壁(4，6)之间的相对的第侧壁(5)和第二侧壁(7)，用于形成炉壳(2)。所述燃尽风装置包括：设置在所述第壁(4)上的至少个第燃尽风口(20)，用于将第燃尽风流(40)供应到炉(1)中；至少个第附加燃尽风口(50)，其布置在第侧壁和第二侧壁(5，7)中的至少个上、在所述第壁(4)附近，所