Patent ID: 8889061

Claim:
An arrangement for feeding powdery solid matter into a concentrate burner of a suspension smelting or suspension converting furnace, whereby the concentrate burner comprises reaction gas feeding means, powdery solid matter feeding means and a concentrate distributor; the arrangement comprising a first powdery solid matter discharge pipe for feeding powdery solid matter into the powdery solid matter feeding means of the concentrate burner; whereby the first powdery solid matter discharge pipe is provided with a first partition, which divides the solid matter, for dividing the first powdery solid matter discharge pipe into two essentially similar discharge pipe parts; and whereby the powdery solid matter feeding means of the concentrate burner comprise an annular concentrate discharge channel that surrounds the concentrate distributor of the concentrate burner, wherein each discharge pipe part of the first powdery solid matter discharge pipe is at least partly divided into two discharge pipe portions by a second partition, and at least one discharge pipe portion comprises an essentially vertical collision plate next to the annular concentrate discharge channel of the powdery solid matter feeding means, powdery solid matter being adapted so as to collide with the essentially vertical collision plate and the essentially vertical collision plate being adapted so as to reduce the speed of powdery solid matter, the vertical collision plate has an upper plate section for reducing the velocity of powdery solid matter, wherein the upper plate section is perpendicular to the discharge pipe portion, and the vertical collision plate has a lower plate section for evenly distributing powdery solid matter in the annular concentrate discharge channel, wherein the lower plate section is turned about a vertical line in relation to the upper plate section so that the lower plate section lies within a plane parallel with a plane tangential to the pipe of the concentrate distributor that is arranged inside the annular concentrate discharge channel.