FIRE GRATE Russian patent published in 2020 - IPC F23H9/02 

FIELD: heat power engineering.

SUBSTANCE: invention relates to heat engineering, in particular to design of grates used in furnace devices, in which solid fuel used is crushed wood, in particular, sawdust or chips. Grate comprises housing made of outer ring and inner ring arranged coaxially and interconnected by radial ribs. Between radial ribs with possibility of rotation around its axis there are grates arranged in the form of truncated pyramids, tops of which are assembled around inner hoop, their bases are fixed on outer ring, and side surface of each grate is formed by alternating rings enclosing longitudinal ribs, which are reinforced with half-ribs, outer and inner hoops are offset relative to each other along axis, wherein between alternating rings there are brushes rigidly fixed on radial ribs. Rotation of grates around its axis is performed by means of electric drive. Gap between alternating rings makes about 5 mm. Brushes are rigidly fixed on radial ribs and are made of pieces of metal rope.

EFFECT: higher efficiency of grate due to efficient grate cleaning from soot and not burnt particles of solid fuel at simultaneous increase of grate performance, which provides creation of compact and powerful thermal devices.

7 cl, 6 dwg