First, ore shall be broken to a reasonable degree by jaw crusher , and then be evenly sent to ball mill via bucket elevator and vibrating feeder for crushing and grinding. The ore after grinding by ball mill will enter into the next process-classification.

In order to extend the service life of mineral processing production line equipment, the correct operation, regular maintenance and overhaul are the most important things needed to be done. Here are six major details for extending equipment life:
1. The  operator should be familiar with the device, and observe the operation,  maintenance, safety and health regulations.
2. The operator should read duty  records before startup equipment, and conduct equipment inspection.
3. The  startup of device should follow the process sequence, starting with load is  strictly prohibited.
4. During the beneficiation production line, the  operation and function of the production line equipment should always be  observed.
5. The shutdown should be consistent with the order, and the  surrounding of production line equipment should be cleaned after the  shutdown.
6. Maintenance must be carried out regularly, no matter how tense  the time and personnel is.
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