Abstract: This article introduces the working principle of the impeller coal feeder unloading equipment used in the slotted coal trough, multiple receiving hoppers in series or silos and other facilities, and calculates the feeding capacity of the equipment according to its operating conditions a detailed description. By analyzing the force composition of the impeller coal feeder in the operation process, the direction and equipment design plan of the high output impeller coal feeder to increase the feeding capacity are proposed, and the technical and economic comparison with the conventional scheme is carried out to provide the unloading system, the selection of materials and equipment provides a new way of thinking.