Feed inlet structure, burner and method for feeding material to burner

A feed inlet structure for a burner for a suspension smelting furnace, the feed inlet structure comprising:

• at least one side wall,
• a bottom and a top provided at opposite ends of the at least one side wall,
• an inlet space defined inside the feed inlet structure, and
• an inlet opening provided in at least one side wall, wherein the feed inlet structure further comprises:
• a feed distributor provided at least partly within the inlet space,
• wherein the feed distributor is configured to separate objects from a standard feed, which objects have a particle size that is larger than a maximum particle size of the standard feed, and
• wherein the feed distributor comprises at least one dividing plate comprising a first side having a first surface, wherein the first side is configured to have a horizontal component, an
• inlet end directed towards the inlet opening, and a distal end at the end opposite to the inlet end,
• whereby the first surface of each dividing plate is configured to deviate a trajectory of at least some objects from a trajectory of the standard feed inside the feed inlet structure, when feed material comprising standard feed and objects is fed to the feed inlet structure.