Patent ID: 9567220
Date: 2017-02-14
CPC Classifications: C01B,D01F

Claim:
1. An apparatus for manufacturing carbon nanotube fibers, comprising: a synthesis furnace having a space where a carbon nanotube fiber is synthesized; a raw material supplier to supply a liquid-state raw material for the carbon nanotube fiber into the synthesis furnace; a gas supplier to supply a carrying gas into the synthesis furnace; a sub-synthesis furnace formed in the shape of a pipe and disposed at an upper portion of the synthesis furnace, wherein the liquid-state raw material for the carbon nanotube fiber flows along an inner wall of the sub-synthesis furnace; a nozzle to spray the liquid-state raw material for the carbon nanotube fiber supplied by the raw material supplier to the inner wall of the sub-synthesis furnace; and a heater disposed along the outer side of the synthesis furnace, wherein concave portions and convex portions are formed on the inner wall of the sub-synthesis furnace.