BURNER ON WOOD GRANULATED FUEL Russian patent published in 2009 - IPC F23B10/00 F23C5/32 

FIELD: power engineering.

SUBSTANCE: burner on wood granulated fuel comprises body, hopper, fan, blowing nozzles, combustion chamber and afterburning chamber. Besides it comprises pipe-batcher for supply of fuel to burner, stem is installed in burner body with the possibility of axial displacement and fixation for control of fuel flow, threaded rod is installed in stem coaxially with conic valve with the possibility of smooth control of primary and secondary air supply into burner by means of fan, which provides for air supply to hopper and burner, at the same time upstream combustion chamber and afterburning chamber there is a pyrolysis chamber installed, and combustion chamber and afterburning chamber are installed serially and represent a burner nozzle, which is connected along tangent to vortex combustion chamber, arranged in the form of hollow cylindrical shell, plugged in lower part and narrowed in upper part accordingly, with the possibility to provide for rotary motion of combustion products in vortex chamber, besides jacket is equipped with window for ignition, hopper is equipped with tightly closing cover, moreover, burner has an additional air channel with isolating valve for supply of primary air to hopper. Vortex combustion chamber is made as multi-staged with at least two stages, at the same time stages are separated from each other by means of partitions made in the form of rings installed on shell, at the same time area of throughput section of annular partitions reduces in direction to outlet of combustion products.

EFFECT: invention makes it possible to increase efficiency factor of burner, to reduce amount of hazardous emission into atmosphere, to reduce material intensity and prime cost of burner.

2 cl, 3 dwg