▎ 摘　　要

NOVELTY - The utility model claims a high temperature tubular furnace for preparing graphene, comprising a furnace body, the inner side of the furnace body is provided with a high temperature felt protective layer; the inner side of the high temperature felt protective layer is provided with alumina fibre insulating cotton; the inner side of the alumina fibre insulating cotton is provided with a ceramic fibre layer; the inner part of the ceramic fibre layer is provided with a spiral water inlet pipe; one end of the water inlet pipe is provided with a water inlet; the other end of the water inlet pipe is provided with a water outlet; the inner side of the ceramic fibre layer is provided with a far infrared heating layer; the gap between the far infrared heating layer and the ceramic fibre layer is provided with multiple electric heating rod; the middle part of the furnace body is provided with a horizontal furnace pipe; two ends of the furnace pipe are provided with an end cover; the inner part of the furnace tube is provided with a quartz boat; one side of the quartz boat is provided with a pull rod; the other end of the pull rod passes through the end cover of one end of the furnace tube and is hermetically connected with the end cover; the lower part of one side of the furnace body is provided with an electric telescopic rod; the other end of the electric telescopic rod is provided with a vertical connecting rod; the upper end of the connecting rod is clamped with one end of the pull rod located at the outer part of the furnace body.