Lithium ion battery carbon negative electrode material grinding shaping technological process and production system thereof

The invention provides a lithium ion battery carbon negative electrode material grinding shaping technological process. The process comprises the following steps: step one, feeding graphite in an inner grading ultra-fine grinding pulverizer, wherein particles with qualified sizes automatically flow out along with airflow under the rotation of an inner grading turbine, and coarse particles fall in a pulverizing area for continuous pulverizing until the particle sizes are qualified; and step two, enabling graphite powder with qualified particle diameters obtained in the step one to flow in a centrifugal classifier along with the airflow, wherein the powder with the particle size of smaller than 35 microns is discharged to a cyclone batcher from an airflow classifier material exhaust hole for collection, and coarse powder is discharged out from a return feeding hole. The ultra-fine grinding pulverizer with an inner grading device is adopted for replacing a plurality of airflow pulverizers to realize ultra-fine grinding, so that qualified fine powder is classified and extracted in time, over crushing is prevented, the product yield is improved, and the production yield is more than 90%.