FACE WALL Russian patent published in 2002 - IPC

FIELD: ball mill face walls. SUBSTANCE: ball mill face wall has multishaped circular projection rigidly connected with cup-shaped bottom. Said projection is of stepped shape. External shapes of cylindrical surfaces are separated by oppositely located projections. Cup-shaped bottom, from external side, has radius conjugation with external cylindrical part of circular combined projection. Cup-shaped mass cross-section is at obtuse angle to rotary axis with mass shape narrowing towards periphery. Maximum spaced periphery zone is made in the form of cylindrical zone. Internal face surface of periphery part of cup-shaped projection consists of unequal cuts in section of circular shape. Said cuts are separated from one another by rectilinear connector on periphery face area. In this case, cup-sh aped contour and smaller in area conical surface of periphery internal surface with generating line inclined to rotary axis at an angle, are combined by radius passage. External side of cup-shaped projection has clamps rigidly connected with it and having oval holes. EFFECT: easy replacement of ball mill face wall. 6 dwg