国家/地区 中国（3）
IPC部 B（3）
IPC大类 B08（3）
IPC小类 B08B（3） C01B（3） B01D（2）
IPC B08B013/00（3）
发明人
公开年 2022（3）
申请年 2021（2） 
专利权人

Heating oil graphene extracting and purifying device, has separating screen fixedly installed on inner wall of purifying device main body, moving plate fixed on separating screen, and dredging block fixedly installed on bottom end of moving plate.

DONG Y, LI J, ZHANG W

Multi-pass scanning device for laser-induced graphene, comprises foil material conveying device comprising unreeling machine, guide roller, winder, feedback sensor, and controller, and laser scanning device including scanning focusing head.

YANG Y, SUN B, CHEN Y, ZHOU S

Graphene solution purifying and impurity removing device has crank that drives connecting rod to move downwards, and outer scraping ring that drives inner scraping seat to move upwards along inner wall surface of first and second compartments.

HUANG X