Crushing Plant

Good operational practice for compression crushers, ensure that:
•    the crusher is correctly specified, including capacity, stroke and crusher cavity;
•    product volumes and gradings are monitored throughout the life of the crusher;
•    feed material is the correct size for the feed opening, well-graded and free of fines;
•    feed and volume are sufficient to maintain chole-feeding, even when feed is intermittent ;
•    feed distribution is consistent to ensure an even loading on the crusher;
•    crusher liners are correctly specified to ensure even wear and reduce packing;
•    crusher setting is maintained to maximise product and balance total crusher loading.
Poor operational practice. Do not:
•    trickle feed, as this may lead to product flakiness and high, uneven wear;
•    reduce the amount of oversize material in the feed;
•    feed undersize as this may lead to uneven wear and packing;
•    assume constant throughput and product grading, as feed and crusher settings may vary.
Maintenance. Monitor:
•    crusher-drive motor loads, high amps may indicate mechanical or crusher liner problems;
•    crusher run down times, shorter times may give early warning of mechanical problems;
•    cooling water temperature and oil pressure/ flow/ temperature;
•    manganese spread; action may be required to avoid overstressing of machine frame or fouling of static members

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