Common Fault And Solution Of Cement Ball Mill

Common faults aboutthe sliding bearing occur burning tile and bruise.

Solutions: Generally in the fine lubrication condition, the accident of burning tile and bruise wont occur for babbitt metal tile liner in the sliding bearing. Unless the normal wear reaches to certain thickness, and the tile liner cant combine well with the sphere body. In a normal operation of clinker ball mill, the feed hollow shaft emit heat suddenly with a high temperature of over 200 degree and the local color on the hollow shaft surface turn blue. Stop the car and check it immediately, many babbitt metals are found on the tile edging of the sphere tile. Primarily estimated the tile surface is melt by the high temperature and under the friction force and the pressure, the melt tile surface is take out of the tile edging. The reason is that the temperature of the clinker entered into the hollow shaft is too high. So the relative hollow shafts surface temperature is very high which dilute the viscosity of the lubricant oil and the oil slick cant be formed.

The axis directly contacts with the tile liner and make friction to produce heat which lead to the sharp rise of the temperature, the surface of the tile liner melting and bruise. At that time, considering there was no spare sphere tile and the productive task was heavy, decision was made to repair the damaged tile liner and to continue to use it. First the expert technicians filing and polish the scratch to make it smooth. Scrape an regular miniature oil groove on the undamaged surface and restore the tile edging, that is the inlet opening. Then empty the grinding body and the clinker in the ball mill. Turn the grinding body artificially and make noload grinding to the tile liner to certain degree. Do linkage noload test run with the transmission part. After a few hours, place into the grinding body and do load carrying with the clinker. All is normal by observation.

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by: jocelyn

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