国家/地区 中国（2）
IPC部 F（2）
IPC大类 F26（2）
IPC小类 F26B（2）
IPC
发明人 WANG X（2）
公开年 2020（2）
申请年 2020（2） 
专利权人 NINGBO NINGK.（2）

Device for preparing graphene oxide powder, comprises drier box body, drying chamber, collecting groove and packing auger, where drying chamber is orderly provided with multiple trays from top to bottom, collecting groove is set at right lower end of drying chamber.

WANG X

Tray for drying graphene, has bottom plate packaged at bottom end of four side plates, and right side plate whose top end is located at outer side of bottom end, where left side plate, front side plate and rear side plate are arranged vertically.

WANG X