LINING OF DRUM MILL TRUNNION AND KIT FOR ITS PRODUCTION Russian patent published in 2020 - IPC B02C17/18 

FIELD: manufacturing technology.

SUBSTANCE: group of inventions relates to elements for lining of grinding means and a kit for their production, which can be used in lining of drum mills. Lining of drum mill pintle comprises lengthwise modular elements 1.1-1.8 interconnected by longitudinal side surfaces to form branch pipe 2 with conical inner working surface. Each modular element 1.1-1.8 has, on the side of the working surface, at least one projection 3 made integral with the modular element and forming a helical rib with projections 3 of the other modular elements. At least one end surface of at least one projection 3 of each modular element 1.1-1.8 lies in the same plane with the corresponding longitudinal side surface of the modular element. Kit for making lining of tympanic journal comprises mold and at least two cartridges, mold has two longitudinal side walls, two end walls, bottom and cover. Inner surface of bottom is located at acute angle to inner surface of one end wall and at blunt angle to inner surface of other end wall. Inner surfaces of the longitudinal side walls are located at an acute angle to each other with a vertex located on the bottom side. Mold on at least one side has at least one through hole. Each cartridge has two longitudinal side surfaces, two end surfaces and two longitudinal different-surface surfaces. Each cartridge in the cross-section passing through different-wide surfaces has the shape of a parallelogram. Longitudinal side surfaces of each cartridge are located at acute angle to each other with vertex located on the side of longitudinal surface of smaller width. Each cassette has at least one cavity corresponding to a shaped lug of the corresponding lining modular element and formed on the side of a longitudinal surface of larger width.

EFFECT: use of said lining in particular makes it possible to reduce labor intensity of processes of mounting and dismounting of modular elements due to simplification of operations of sealing and fastening.

24 cl, 47 dwg