HOT-WATER SOLID-FUEL BOILER Russian patent published in 2015 - IPC F24H1/00 

FIELD: heating.

SUBSTANCE: invention refers to water heating equipment utilising solid fuel combustion, and can be applied in thermal power industry. Hot-water solid-fuel boiler includes body, loading tank for fuel, connected to drum and featuring channels running along the drum axis for fuel portion loading on its radial surface, furnace chamber, grate for ash removal from furnace chamber, device of air supply to furnace chamber. Channels are arranged along the perimeter of radial drum surface in two rows opposing each other, with a flat area of cylindrical surface between the rows, each row begins at the drum edge, each channel of one row is oriented at a sharp angle to a given drum rotation direction and limited in height by the body surface turning around the drum, and one grate end is oriented closer to the flat area of cylindrical drum surface in the run-up to the specified drum rotation direction while the other grate end is attached to the body.

EFFECT: thermal stress relieve in drum due to fuel combustion transferred to furnace chamber, reduced amount of fuel materials dropped with ash.

4 cl, 4 dwg