Fundamentals of Gasification 2018-10-16
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What are the reasons for high temperatures in the coal mill bearing shells and what are the solutions? Answer: Reason: A. Low fuel supply ； B. High cooling water temperature ； C. Incompatible fit between the shaft and bearing bushings ； D. The mill runs idle for a long time. Solution: A. Increase the oil supply volume ； B. Increase the amount of circulating cooling water or lower the temperature of the circulating water ； C. Stop the machine to inspect or replace the bearing shells ； D. Stop grinding immediately.
Answer: Reason: A. Low fuel supply； B. High cooling water temperature ； C. Incompatible fit between the shaft and bearing bushings ； D. The mill runs idle for a long time. Solution: A. Increase the oil supply volume ； B. Increase the amount of circulating cooling water or lower the temperature of the circulating water ； C. Stop the machine to inspect or replace the bearing shells ； D. Stop grinding immediately.
Answer: Reason: A. Low fuel supply； B. High cooling water temperature ； C. Incompatible fit between the shaft and bearing bushings ； D. The mill runs idle for a long time. Solution: A. Increase the oil supply volume ； B. Increase the amount of circulating cooling water or lower the temperature of the circulating water ； C. Stop the machine to inspect or replace the bearing shells ； D. Stop grinding immediately.
Answer: Reason: A. Low fuel supply； B. High cooling water temperature ； C. Incompatible fit between the shaft and bearing bushings ； D. The mill runs idle for a long time. Solution: A. Increase the oil supply volume ； B. Increase the amount of circulating cooling water or lower the temperature of the circulating water ； C. Stop the machine to inspect or replace the bearing shells ； D. Stop grinding immediately.
Reason: A. Low fuel supply； B. High cooling water temperature ； C. Incompatible fit between the shaft and bearing bushings ； D. The mill runs idle for a long time. Solution: A. Increase the oil supply volume ； B. Increase the amount of circulating cooling water or lower the temperature of the circulating water ； C. Stop the machine to inspect or replace the bearing shells ； D. Stop grinding immediately
1. Low fuel supply； 2. High cooling water temperature ； 3. Incompatible fit between the shaft and bearing shells ； 4. The mill runs idle for a long time. 1. Increase fuel supply. 2. Increase the cooling water flow rate or lower the water temperature. 3. Identify the cause and then carry out repairs. 5. Shutdown,
Reason: A. Low fuel supply； B. High cooling water temperature ； C. Incompatible fit between the shaft and bearing bushings ； D. The mill runs idle for a long time. Solution: A. Increase the oil supply volume ； B. Increase the amount of circulating cooling water or lower the temperature of the circulating water ； C. Stop the machine to inspect or replace the bearing shells ； D. Stop grinding immediately.
Reason: A. Low fuel supply； B. High cooling water temperature ； C. Incompatible fit between the shaft and bearing bushings ； D. The mill runs idle for a long time. Solution: A. Increase the oil supply volume ； B. Increase the amount of circulating cooling water or lower the temperature of the circulating water ； C. Stop the machine to inspect or replace the bearing shells ； ? ?? ???D. Stop the mill immediately.
Reasons: A. Low oil supply; B. High temperature of the cooling water; C. Incompatible fit between the shaft and bearing shells; D. The grinding surface has been idling for an extended period. Solutions: A. Increase the oil supply; B. Increase the amount of circulating cooling water or lower its temperature; C. Stop the machine to inspect and repair or replace the bearing shells; D. Stop grinding immediately