▎ 摘　　要

NOVELTY - The utility model claims a preparation device of a wave absorbing performance of the graphene oxide, comprising a kettle body, the kettle body is provided with a stirring device, the kettle body is provided with a feeding chamber, the upper side of said feeding chamber is fixedly connected with an air inlet pipe; the bottom side of said feeding chamber is fixedly connected with a straight tube, the straight tube is provided with a first electromagnetic valve, the straight pipe is glidingly sleeved with the inner sleeve, the inner sleeve pipe far away from one end of the straight pipe is provided with a main discharging pipe, the main discharging tube comprises the first annular half tube and a second ring half; the first semi-annular tube is fixedly connected with the inner sleeve pipe. This utility model opens the first electromagnetic valve by closing the second electromagnetic valve, the air pump of the external air in the pipe through air inlet pipe, such that the airflow pushing raw material can be fast moving, so as to reach the main discharge pipe through the inner sleeve pipe, and finally discharged through the discharge hole, by this way can directly put the raw material into the bottom of reaction liquid to make the reaction more fully.