▎ 摘　　要

NOVELTY - A graphene three-dimensional structure for powder production reaction furnace, an afterheat recycling device is set at the side of the reaction furnace, a waste heat recycling device comprises a heat storage box, an air inlet pipe, an air outlet pipe, a controller, a storage box is provided with a heat storage tank, the heat storage tank is provided with a heat conductor, bottom of the heat storage tank is provided with a motor fixing frame, the motor fixing frame is provided with a motor, the output shaft of the motor passes through the heat into the heat storage tank and is connected with a fan; the air inlet pipe is provided with a first exhaust fan, a first electromagnetic valve, one end of the air inlet pipe is connected with the reaction furnace inner cavity upper end. the other end is connected with the cavity of the heat storage tank; the air outlet pipe is provided with a second exhaust fan and the second electromagnetic valve, one end of the air outlet pipe lower end is connected with the inner cavity of the reaction furnace, the other end is connected with the inner cavity of the heat storage tank. the first exhaust the reaction of high temperature gas in the furnace to the heat storage tank, heat conductor and heat of the high temperature gas absorbing and storing, then the high temperature gas to the reaction furnace in the heat storage tank through the second exhaust fan, saves heating energy of the reaction furnace.