国家/地区 中国（2）
IPC部 B（2）
IPC大类 B07（2）
IPC小类 B07B（2）
IPC B07B001/46（2）
发明人
公开年 2022（2）
申请年 2021（2） 
专利权人

Graphene anti-alkali primer raw material filtering device, has hot air device and auxiliary filter device that are set on upper side of filter plate, where top part of filter shell is provided with feeding port.

YUAN C, MA D, WEI S, YUAN X, JIANG C

Graphene multi-stage sieving device with drying function comprises outer shell, hot blower and sieving groove assembly installed in inner cavity of shell body.

HUANG L, JIAN X