▎ 摘　　要

NOVELTY - The device has a storing box (1) whose top end is provided with a feeding port (2), where a bottom end of the storage box is provided with a motor (3). A top part of a first separator (10) is provided with a first exhaust pipe (17), where a bottom end of the first separator is connected to a first collecting tank (16). A side of the first collecting tank is connected with a conveying pipe (18) that is provided with a suction blower (19). The suction blower and is connected with a second separator (11) that is fixed on an air inlet (8), where an upper end of the second separator is provided with a second exhaust pipe (21). A bottom end of the second separator is provided with a second collecting tank (20). USE - Graphene product on-line grading device. ADVANTAGE - The device is convenient to use by setting the separator, and separates alkene product, and improves single layer peeling efficiency of a graphene product. DESCRIPTION OF DRAWING(S) - The drawing shows a front view of a graphene product on-line grading device. Storing box (1) Feeding port (2) Motor (3) Air inlet (8) Separators (10,11) Collecting tanks (16,20) Exhaust pipes (17,21) Conveying pipe (18) Suction blower (19)