本发明给出了碳纤维氧化炉的百叶窗装置,第一种百叶窗装置的第一炉门护板上有第一通槽,第一炉门护板后侧有第二炉门护板,第二炉门护板对应第一通槽的位置上有第二通槽,第一炉门护板与第二炉门护板上方有驱动机构;第二种百叶窗装置的第一炉门护板上有第一通槽,第一炉门护板前侧有上叶片和下叶片,第一炉门护板后侧有第二炉门护板,第二炉门护板对应第一通槽的位置上有第 The present invention provides a shutter device of a carbon fiber oxidation furnace. The first shutter door of the first shutter device has a first through slot, a second door guard at the rear side of the first door guard, The door guard has a second through groove at a position corresponding to the first through groove, a driving mechanism is arranged above the first door guard and the second door guard, and the first door guard of the second type of shuttering device has a A through groove, the front side of the first door guard has an upper blade and a lower blade, the rear of the first furnace door guard has a second furnace door guard, the position of the second furnace door guard corresponding to the first through groove has a