The invention discloses a double-furnace-core-rod
sintering device with a stable temperature field and a stable flow field. The device comprises a
sintering furnace, a
dehydration furnace, an air inlet waste
discharge treatment device and a muffle
pipe arranged in the
sintering furnace and the
dehydration furnace in a penetrating mode. An inter-furnace heat preservation piece and a temperature balance area are arranged between the sintering furnace and the
dehydration furnace. A sintering area and a dehydration area are arranged in the muffle
pipe; a muffle tube cover plate is arranged at thetop of the muffle
pipe; and the air inlet and waste
discharge treatment device comprises an exhaust hood, an
exhaust pipe and a
waste gas treatment device. A
fresh air branch with a
fresh air valve, apressure gauge and a main air valve are arranged on the
exhaust pipe, a traction device is arranged on the exhaust hood cover plate and the muffle tube cover plate in the penetrating mode, a loose product is installed at the lower end of the traction device and inserted into the muffle tube to be dehydrated and sintered, and the exhaust hood, the muffle tube, the
exhaust pipe and the
waste gas treatment device are communicated. The device has the advantages that the temperature in the furnace and the temperature and the pressure in the muffle tube are stable, the sintering dehydration
operation time and the production cost are reduced, the overall working efficiency is improved, and a temperature field and a flow field are stable.