BOILING PLANT Russian patent published in 2006 - IPC F23K1/00 

FIELD: combustion.

SUBSTANCE: boiling plant comprises boiler with furnace provided with the main and discharging dust-coal burners and system for preparing dust with dust concentrators. Each of the concentrators has tangential inlet branch pipe connected with the source of coal dust. The dust concentrators are mounted horizontally and coaxially to the burners of the boiler furnace. The discharging pipe of each concentrator is made of ring space between the smaller base of the conical hollow insert of the dust concentrator and air nozzle of the igniting burner and faces inward the hollow insert through which it is connected with the discharging burner mounted inside the main burner. The ring space is defined between the discharging burner and hollow insert. The housing of the dust concentrator is conical. The face space between the large bases of the housing and discharging burner defines the branch pipe for discharging the concentrated mixture. The dust concentrator also has face lid that is mounted with a spaced relation to the hollow insert for flowing gases to the ring discharging pipe. The air nozzle is connected with the hot air line, and igniting burner is connected with the source of readily inflammable fuel. The tangential inlet branch pipe can receive lug gate for control of the direction of supply of coal dust to the space between the cones. The hollow insert and head of the air nozzle can be made of a muffle.

EFFECT: enhanced efficiency.

2 dwg