As an important material conveying tool in cement, coal, coke and other industries, belt conveyor has remarkable characteristics: large conveying capacity, simple structure and convenient maintenance. It can flexibly select single or multiple units for collaborative operation according to different process requirements. So, what does the protection device of such a critical belt conveyor include? Next, let’s explore it together!
1. Temperature protection mechanism of belt conveyor
When the roller and belt of the belt conveyor produce too high temperature due to friction, the detection device installed near the roller will quickly send out an overtemperature signal. After the system receives the signal, after a short delay of 3 seconds, it will automatically cut off the power supply of the motor and stop the conveyor from running, thereby effectively preventing safety accidents caused by overheating.
2. Speed protection mechanism of belt conveyor
When the belt conveyor has abnormal conditions, such as motor damage, mechanical transmission part failure, belt or chain breakage, belt slippage and other faults, the magnetic control switch in the accident sensor SG installed on the passive component of the conveyor will not be able to close normally or at the predetermined speed. At this time, the control system will trigger the speed protection circuit after a short delay based on the inverse time characteristic, cut off the power supply to the motor, and prevent the accident from further deteriorating.
3. Stop protection at any point in the belt conveyor
If you need to stop the belt conveyor at any position, just turn the switch at the corresponding position to the stop position, and the conveyor will stop running immediately. When you need to restart, reset the switch first, and then press the signal switch to send the start signal.
