Because of its special characteristics, the screw conveyor is prone to winding of material when the screw shaft rotates, and the intermediate suspension bearing also easily blocks the material, so the plugging becomes the most common failure of the screw conveyor. Once the conveyor is blocked, it will increase the power consumption will burn the motor.

How can we effectively reduce congestion?

• 1. Reasonably select the technical parameters of the screw conveyor, such as the speed of the slow screw conveyor can not be too large.

• 2. Strictly implement the operating rules to achieve no-load starting and no-load parking; ensure continuous and uniform feeding.

• 3. Increase the discharge port or lengthen the end of the chute to solve the problem of poor discharge or too late to discharge. At the same time, it is also possible to install a small counter-rotating vane at the end of the discharge chute to prevent blocking of the end.

• 4. Clean the material entering the conveyor to prevent the introduction of heavy or fibrous contaminants into the machine and cause clogging.

• 5. Install bin leveler and jam sensor to achieve automatic control and alarm.

• 6. An anti-clogging valve is opened on the discharge end cover. When a blockage occurs, due to material accumulation, the anti-blocking door is opened top and the power is cut off by the switch.