Nanocarbon producing apparatus

A nanocarbon producing apparatus comprising:

• a heating vessel which provides a reducing atmosphere therein;
• a metallic substrate disposed on an inside surface of the heating vessel, the metallic substrate comprising catalytic particles;
• a heating source disposed on an outer circumference of the heating vessel;
• a hydrocarbon injection nozzle disposed on an upstream side of the heating vessel which injects hydrocarbon into the heating vessel, and effects a reaction to grow nanocarbon on the metallic substrate;
• a scraping mechanism disposed in the heating vessel which scrapes away the nanocarbon grown on the metallic substrate, the scraping mechanism being configured to rotate a scraping member about a central axis of the heating vessel and to be capable of adjusting a spacing distance between the surface of the metallic substrate and the scraping member;
• and
• a nanocarbon discharging portion disposed on a downstream side of the heating vessel.