Overload refers to operating beyond the shredder's capacity, and this
applies to scrap metal shredders as well. Exceeding rated capacity can lead to
various malfunctions and even production stoppages, resulting in unnecessary
losses. Therefore, determining when a scrap metal shredder is overloaded is
crucial. Specific methods are as follows:
1. Directly use a contact level meter to indicate the material level within
the shredder chamber, thereby determining the load.
2. Use a belt scale or other device to measure the shear's feed rate to the
belt conveyor.
3. Calculate the load to determine the circulating load of the
closed-circuit system. Measure the current in the scrap metal shredder's motor
circuit. The current drawn by the shredder during operation is typically
controlled at approximately 85% of the rated current. For multi-stage shredding,
only the load on the shredder controlling product particle size is typically
checked. This shredder is typically located in a closed-circuit system, and its
feed rate includes both the feed rate from the young shredder stage and the
circulating load.
Ensuring the proper working load of the scrap metal shredder depends
primarily on the operator's use of the shredder. Care should be taken not to
exceed the machine's maximum capacity and to operate the machine within the
limits of their capabilities. Operators should be familiar with the operator's
manual and accompanying documentation and strictly adhere to operating
procedures.
Also, ensure that the load on the scrap metal shredder increases evenly,
maintaining a relatively smooth load change. Specifically, the throttle should
be increased evenly to prevent sudden fluctuations in the engine and working
mechanism. Preventing the scrap metal shredder from overloading not only reduces
equipment failures and ensures normal operation, but also significantly extends
its service life. Therefore, be sure to pay attention!
