DUST CONCENTRATOR Russian patent published in 2017 - IPC F23K1/00 

FIELD: machine engineering.

SUBSTANCE: dust concentrator contains a cylindrical body with a swirler located inside the body, located in the upper part of the body by a discharge tap and an annular gap between the body and the discharge tap, while outside the body there are dust pockets connected on one side with an annular gap, and on the other - with a mixer of the hot gas supply line. Inclined guide baffle is installed between the annular gap and dust pockets. Hot air or an inert gas is used as a hot gaseous agent.

EFFECT: invention allows to implement higher heating of the pulverized fuel, which helps to reduce the formation of harmful nitrogen oxides, as well as to exclude the intersection of the concentrated dust and gas stream with the discharge tap, which reduces the amount of dust entering the discharge tap, and consequently increases the amount of dust entering the main burners of the combustion chamber of the boiler.

3 cl, 3 dwg