Chain conveyor by means of low energy consumption within the aircraft friction materials conveyed, conveyor and chassis movement without friction. Under the same conditions of transport capacity and longer transport distances, the aircraft's power consumption is about 40% lower than the screw conveyor. When the chain conveyor work, the lower part of the chain of slot machine moves forward, so that the material inside the slot machines increased pressure within the friction between the material particles increases, when the internal friction of the material is greater than the material and machine slot wall When external friction, materials will move forward together with the conveyor for continuous whole movement. Chain conveyors are widely used in building materials, construction, chemical, thermal power, food processing, mining, machinery, metallurgy, transport, ports and transportation industries. Chain conveyor, superiority stems from how it works, because the material has the internal friction and lateral pressure and other characteristics, conveyor movement so that the internal pressure and the internal friction of the material particles between slot machines increases, when the material When the internal friction between layers is greater than the friction material and the outer walls of the tank, the material on the conveyor together with like water flowing forward, the ratio of the material layer height and width of the slot machines when certain conditions are met, can form steady stream.