CHARCOAL KILN Russian patent published in 2016 - IPC C10B53/02 F23G5/27 

FIELD: process engineering.

SUBSTANCE: invention can be used in coal and wood-chemical industries. This kiln comprises heat-insulated pyrolysis chamber (1) connected via heat-insulated pipe (30) with condensation system including cooler (3) and hotwell (31). Cooler (3) is composed of shell-and-tube heat exchanger with its tube space communicated with air heaters (42) via heat-insulated drying chamber (4). Charcoal kiln comprises furnaces (2) composed of communicated gas generator (15) and combustion chamber (16) provided with the afterburner (23) of uncondensed pyrolysis gases and gas duct (8) with shutter (11). Combustion chamber (16) incorporates extra afterburner (52) of sump condensate. Gas duct (8) is equipped with pressure control valve (64), pipe (35) located upstream of shutter (11) from the side of combustion chamber (16) and, via hydraulic lock (58), with recuperative heat exchanger (51). Hotwell (31) is composed of sump communicated via pipe (59) arranged at its sidewall with vessel (56) for collection of water-soluble portion of condensate and, via pipe (60) at sidewall lower part, heater (62) and pump (53), with afterburner of sump condensate (52).

EFFECT: non-polluting process, higher efficiency of kiln operation of quality of charcoal.

1 dwg