Apparatus for manufacturing carbon fiber by using microwaves

Abstract

The present invention relates to an apparatus for manufacturing carbon fiber by using microwaves, and more particularly, to an apparatus for manufacturing carbon fiber by using microwaves, which directly or indirectly heats and carbonizes a carbon fiber precursor by using microwaves, so that energy efficiency is improved because an entire carbonization furnace is not heated, and a property of the precursor is adjusted by a simpler method by using microwaves.

1 . An apparatus for manufacturing carbon fiber by using microwaves, the apparatus comprising:
 a heat treatment furnace which stabilizes a precursor; and   a carbonization furnace which is positioned at one side of the heat treatment furnace and carbonizes the stabilized precursor,   wherein the carbonization furnace carbonizes the precursor by using microwaves as a heat source.   
     
     
         2 . The apparatus of  claim 1 , wherein the carbonization furnace includes:
 a main body;   a micro emitting unit which is positioned inside or outside the main body, and emits microwaves to the stabilized precursor; and   a heating body which is positioned inside the main body and is heated by the microwaves.   
     
     
         3 . The apparatus of  claim 2 , wherein the heating body occupies 0.1% to 5% of a volume of the main body. 
     
     
         4 . The apparatus of  claim 1 , wherein one or more carbonization furnaces are positioned at one side of the heat treatment furnace. 
     
     
         5 . The apparatus of  claim 1 , further comprising rollers positioned at one side and the opposing side of each of the heat treatment furnace and the carbonization furnace. 
     
     
         6 . The apparatus of  claim 1 , wherein the carbonization furnace is configured to produce carbonization temperature of 400° C. to 1,500° C.