METHOD AND ARRANGEMENT FOR FEEDING PROCESS GASES FROM A SUSPENSION SMELTING FURNACE INTO A WASTE HEAT BOILER

摘要

The invention relates to a method and to an arrangement for feeding process gases (1) from a suspension smelting furnace (2) into a waste heat boiler (3). The arrangement comprises a feeding throat (4) for feeding process gas (1). The feeding throat (4) is connected to an uptake inner space (7) at an exit (9). The feeding throat (4) is connected to the waste heat boiler (3) at an entrance (10). The feeding throat (4) having a feeding channel (5) comprising a channel inner roof (6). At least one of an uptake inner roof (12) of the uptake (8) of the suspension smelting furnace (2) and the channel inner roof (6) of the feeding channel (5) of the feeding throat (4) is provided with an angled and/or curved section (14) that slopes at least partly downwardly in an angled and/or curved manner in the direction towards the entrance (10).