▎ 摘　　要

NOVELTY - Cold wall reactor comprises a cold wall reactor box body (1) and a finished product collecting box. The inner part of the cold wall reactor box body is provided with a graphite crucible. The graphite crucible is filled with a solid raw material (2). The side wall of the cold wall reactor box body is provided with a solid raw material feeding pipeline (3), a gas raw material feeding pipeline (4), a plasma gun (5). The cold wall reactor box body is provided with a top part material discharging pipe and a middle material discharging pipe. The middle material discharging pipe is connected with the collecting box feeding pipeline. The inner bottom of finished product collecting box is provided with a water tank and the bottom of the finished product collecting box is with a bottom collecting pipeline. The gas raw material comprises nitrogen, argon, hydrogen and oxygen. The metal alloy is tungsten-molybdenum alloy and tungsten-thorium alloy and anode material in the plasma gun is graphite. USE - The cold wall reactor is useful for preparing nano silicon, carbon nano tube, graphene and other nano material. ADVANTAGE - The cold wall reactor: saves energy consumption and improves the reaction temperature. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the cold wall reactor cold wall reactor. 1Cold wall reactor box body 2Solid raw material 3Solid raw material feeding pipeline 4Gas raw material feeding pipeline 5Plasma gun