The vibration frequency of the vibrating conveyor is determined by the rotation speed of the excitation motor. The spiral vertical conveyor can also use the above three types of exciters, but it is required to generate an excitation force in the vertical direction and an excitation torque around the vertical axis to achieve vertical vibration of the spiral trough and torsional vibration around the axis, and the material Continuously conveyed upward along the spiral groove. The excitation force causes the tank body to vibrate in a certain tilt direction, transporting the material in the tank forward. The movement form of the material in the trough depends on the vibration acceleration of the trough. The ratio (D) of the component of this acceleration in the direction vertical to the bottom of the trough and the component of gravity acceleration is called the throw index. When D<1, the material makes sliding motion in the trough. At this time, the material is always in contact with the bottom of the trough. Every time it vibrates, the material slides forward a distance. When D>1, the material performs a throwing motion. At this time, the material jumps forward in the trough to realize continuous transportation by continuous jumping. Most vibrating conveyors adopt the throwing motion state, and the D value is selected from 1.5 to 3.3.