FURNACE OF STEAM GENERATOR Russian patent published in 2010 - IPC F23C5/08 

FIELD: power engineering.

SUBSTANCE: furnace of steam generator is arranged in the form of vertical polyhedral prism, faces of which represent screened nets. In lower part of these walls there are burners installed in tiers, longitudinal axes of which are directed along tangents to conventional circumference in the centre of furnace. Besides prism is made of six or eight faces. In the middle part of screened walls there are powdered coal vortex burners with twist parametre of 1÷3. Their longitudinal axes are directed towards conventional circumference with relative diametre of 0<d_y<0.15, where: d_y - relative diametre, d - diametre of conventional circumference; D - diametre of combustion chamber circumference inscribed into prism.

EFFECT: improved stability of fuel ignition, completeness of its burning, reduced formation of nitrogen oxides NO_x and reduction of their exhaust into atmosphere, reduced slagging of screened walls of furnace.

5 dwg