The invention discloses an
internal heating type rotary
carbonization furnace for forward and reverse flow heating and a
process control method, and relates to a
carbonization device. Comprising a feeder, a
clockwise and anticlockwise circulation
kiln, a high-temperature
fuel gas channel, a discharging cabinet, a cooling
charcoal discharging device, a low-temperature
fuel gas channel, a medium-temperature
fuel gas channel, a two-section type
combustion furnace, a high-temperature
flue and a circulating type regulation and control pipeline
system.
Raw material carbonization comprises two stages,
one stage is a countercurrent carbonization stage which is mainly completed in a countercurrent carbonization furnace stage, raw materials face downwards,
flue gas faces upwards, and most of water in the raw materials is gasified in the stage. 2, a down-flow carbonization stage is mainly completed in a down-flow carbonization furnace stage, the raw materials and
flue gas move downwards, and most organic matters in the raw materials are cracked in the stage; a
process control method comprises the steps of ignition, heating, feeding carbonization, gas ring formation, two-stage
combustion, energy self-supply, carbonization temperature regulation and control and gas flow regulation and control. Compared with a conventional carbonization
system, an additional
drying link is omitted, equipment is simplified, and the stability of the carbonization effect is ensured.