FIRING SYSTEM Russian patent published in 2008 - IPC F23C5/32 

FIELD: heat-power engineering.

SUBSTANCE: firing system consists of a combustion chamber with vertical walls, hot air duct connected with combustion chamber by means of burners, bottom-blowing air duct connected with air nozzles which are installed opposite in a staggered order near the dry bottom hopper hole along extended slopes. Aim of invention is achieved by the fact that some air nozzles are located near dry bottom hopper hole on vertical walls throughout the height of combustion chamber.

EFFECT: invention allows improving the afterburning efficiency of unburnt fuel particles falling down to dry bottom hopper, decreasing nitrogen oxide emission level, and reducing slagging of dry bottom hopper slopes, which leads to improvement of reliability and economy.

2 dwg