NG thickener is a kind of peripheral traction thickener of running roller type. Large-scale thickener usually adopts such type of peripheral traction. In the event of skidding of running roller due to overloading, no special safety device is required. Its tank is usually made of concrete.
In order to charge the motor, annular nodes are arranged on the central support. The current collection joints with sliding ring are connected with the arm brace, and the current is introduced to the motor through these joints by the cable laid on the arm brace.
2.2.1 Since the frictional force of running roller is low, the running roller is liable to skid in the event of icing on the track or overloading. Therefore, it is not suitable to be used in cold area with the phenomenon of icing, or the ore pulp with large quantity or high concentration.
