DEVICE FOR BURNING SOLID FUEL Russian patent published in 2006 - IPC F23G5/14 

FIELD: heat power engineering.

SUBSTANCE: device comprises charging chamber with heat-resistant bottom made of a trancated cone whose smaller base points downward and provided with through passages that connect the peripheral passage for supplying air for primary oxidizing the fuel with the above-grate space and central vertical downward directed passage-chamber for afterburning pyrolysis gas and particles of unburned fuel connected with the autonomous batching chamber for supplying air. The peripheral passage for supplying air is separated into the autonomous peripheral passages with controllable gates for permitting autonomous supply of air at the level of the bottom and homogeneous gasifying of fuel. The peripheral belt made of heat-resistant material is mounted above the bottom and provided with through passages that connect the space of the above-grate space with the top peripheral passage for supplying air. The insert made of heat-resistant material is mounted above the central passage-chamber and provided with passages that connect the space above the insert and grate with the space of the passage-chamber. The top section of the wall of the passage-chamber is provided with the passages-nozzles arranged over its periphery for permitting multi-jet air supply and complete afterburning of the pyrolysis gas and particles of the unburned fuel.

EFFECT: enhanced completeness of combustion.

4 dwg