The invention discloses a boiling type rice
husk combustion boiler which comprises a boiler body, a
refractory furnace wall heat-
insulation system, an
electric control system, an air blasting
system, an air
mixed type screw feeder, a boiling type
combustor and an induced draught
system. The boiler body is of an energy-saving type full steel structure of the boiling type rice
husk combustion boiler and is composed of an upper boiler
barrel, a lower boiler
barrel, an upper collecting box, a lower collecting box, a water wall tube, a
convection heat exchanging
pipe and a downcomer, the upper boiler
barrel and the lower boiler barrel are communicated with each other through the water wall tube, the
convection heat exchanging
pipe and the downcomer, and the upper collecting box and the lower collecting box are communicated with each other through the water wall tube, the
convection heat exchanging
pipe and the downcomer; a steam connector, a
safety valve connector and a pressure meter connector are arranged above the upper boiler barrel, a
water level gauge connector is arranged at the front end of the upper boiler barrel, and a water inlet connector is arranged at the rear of the upper boiler barrel; a
pollution discharge connector is arranged below the lower boiler barrel; the boiling type
combustor is arranged on the lower portion of the boiler body, and a boiling
bed is arranged at the bottom of the boiling type
combustor; and the air
mixed type screw feeder is arranged on the boiling type combustor. The boiler is simple and rigorous in whole structure, anti-
abrasive, anti-explosive, thorough in
combustion, high in heat utilization, long in service life and applicable to various enterprises, especially
food processing enterprises.