Ultrasonic-assisted cement grinding method

The invention discloses an ultrasonic-assisted cement grinding method which comprises the following steps: processing cement which is being ground by using ultrasonic waves with the frequency of 40-100Hz while grinding the cement by a ball mill or a vertical mill. According to the method, by adopting an ultrasonic-assisted grinding technology, the adhesion and gathering phenomena of powder particles can be removed, the flowability of ground particles can be improved, the adaptability problem caused by the use of a chemical grinding aid is solved, and the problem of reduced grind-aiding efficiency caused by high airflow temperature does not exist when the cement is ground in the vertical mill; the grinding efficiency can be improved by 10%-20%.