Pre-oxidation furnace system for viscose-based carbon felt production

The invention relates to the technical field of carbon felt production, and particularly discloses a pre-oxidation furnace system for viscose-based carbon felt production. The pre-oxidation furnace system comprises an unwinding roller, a spraying box, a spraying device, a recycling device and three oxidation furnaces arranged in series; the spraying box is internally provided with a mesh belt conveyor, a roller shaft conveying mechanism, a first driving roller, a second driving roller and a third driving roller; the spraying device comprises a water tank arranged outside the spraying box and a spraying head fixed in the spraying box; the recycling device comprises a recycling box arranged at the bottom of the inner wall of the spraying box; and a guiding device and an air blowing device are arranged in each oxidation furnace. The tension in the production process can be adjusted, and the tightness of a fiber felt can be adjusted according to production requirements to resist automatic shrinkage in production,