APPARATUS AND METHOD FOR CLEANING ARTICLE WITH SURFACE LAYER TO BE REMOVED Russian patent published in 2020 - IPC B21B45/08 

FIELD: metal rolling.

SUBSTANCE: invention relates to the field of rolling. Device for scale removal from product (2) subjected to hot rolling, in particular, slabs or strips moved with respect to said device, comprises at least one nozzle holder, rotatably mounted on central support (5) perpendicular or inclined relative to the article surface to be treated, at least one jet nozzle (4), which is fixed on the nozzle holder arm (31, 32) and from which during operation liquid is released under pressure, wherein jet nozzle (4) is aligned so that fluid jet, coming out of operation from jet nozzle (4), comes to surface of rolled material linearly or at an angle to surface of rolled material, wherein at least one jet nozzle (4) is fixed on nozzle holder (3) with possibility of rotation around rotating shaft, oriented parallel to central support (5) of nozzle holder (3), wherein jet nozzle (4) is rotatable during operation such that the angle between the direction of movement of the rolled material and the direction of the liquid jet exiting jet nozzle (4) in the plane of the surface of the rolled material is constant, wherein in central support (5) there is a rotating shaft with line (13) for supplying liquid under pressure, placed in it and connected to supply line (14) in corresponding arm (31, 32) of nozzle holder (3), which extends into inlet (43) of housing (41) of jet nozzle (4), wherein the vector determining the direction of the liquid jet outlet under pressure from 80 bar to 1000 bar from jet nozzle (4), has no component in the direction of movement of rolled material (2).

EFFECT: invention provides the possibility of increasing the cleaning process efficiency.

10 cl, 8 dwg