Crushing, Screening & Conveying

Crushing, Screening & Conveying 2017-03-23T09:38:14+00:00
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Primary Gyratory Crusher Maintenance (1 reply)

Eder Figueiredo
1 week ago
Eder Figueiredo 1 week ago

Hello everyone.

My questions are regarding to maintenance of the primary gyratory crushers.

Does anybody know any kind of sensor to monitoring head spin of the main shaft of the primary gyratory crusher?

During the measurement of the spider bushing clearance, I need to remove the spider cap and then check clearance using a feeler gauge. (Please the picture attached).

It takes me more than 2 hours to do that. I would like to know if anybody knows any device or another method to control the spider bushing clearance without the removal of the spider cap.

checking of the spider bush clearance
2 days ago
czambrano 2 days ago

Hello Eder,

We did not automatically measure the bush clearance, only the grease level in the cap and speed. I remember we used the inlet and return oil temperature and the difference between the two as indicators of the bush status. The differencial temperature increased under load and an high warning point was set to indicate bad bush condition. Otherwise than that we limited the empty run time in order to prevent head spin.

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