Abstract: A drum assembly for a ball mill system may comprise: a drum having a first flange extending axially forward from a first radial wall, a second flange extending axially aft from a second radial wall, and a cylinder shell extending axially from a first radially outer end of the first radial wall to a second radially outer end of the second radial wall; a frame coupled to the first flange; and an inlet liner coupled to the frame, the inlet liner comprising a plurality of inlet segments disposed circumferentially adjacent to each other, the inlet liner defining an inlet radius for the drum assembly.

Abstract: A drum assembly for a ball mill system may comprise: a drum having a first flange extending axially forward from a first radial wall, a second flange extending axially aft from a second radial wall, and a cylinder shell extending axially from a first radially outer end of the first radial wall to a second radially outer end of the second radial wall; a frame coupled to the first flange; and an inlet liner coupled to the frame, the inlet liner comprising a plurality of inlet segments disposed circumferentially adjacent to each other, the inlet liner defining an inlet radius for the drum assembly.

Abstract: A drum assembly for a ball mill system may comprise: a drum having a first flange extending axially forward from a first radial wall, a second flange extending axially aft from a second radial wall, and a cylinder shell extending axially from a first radially outer end of the first radial wall to a second radially outer end of the second radial wall; a frame coupled to the first flange; and an inlet liner coupled to the frame, the inlet liner comprising a plurality of inlet segments disposed circumferentially adjacent to each other, the inlet liner defining an inlet radius for the drum assembly.

Abstract: A liner segment (10) for a rotary ore grinding mill (1) is disclosed. The mill has a horizontal mill axis (25), and an interior having a cylindrical liner (6) with a frusto-conical end (8) from which ground ore slurry exits the mill. Each segment includes a part collar (12) which protrudes inwardly into the interior. The collar has a first generally cylindrical surface (13) co-axial with the mill axis and a second flange surface forming a substantially annular flange (14) of greater radius than the cylindrical surface, surrounding an interior end of the cylindrical surface, and being connected to the cylindrical surface. Each segment has a vane (21) extending radially outwardly of the first cylindrical surface and projecting into the interior. The vane impedes the exit from said mill of unground ore particles and grinding media, and permits the exit of the slurry. A method is also disclosed.

Abstract: A nut (23) and a re-usable liner bolt (17) for a grinding mill is disclosed. The nut is shaped to be received in the recess (5) of a mill liner plate (3), this being the recess which normally receives the head of a conventional liner bolt. The nut is provided with a blind threaded hole (25). The re-usable bolt has a stepped shank (18) and a thread (20) on its free end. The bolt (17) is inserted from the exterior of the mill and engages the nut (23). The fines produced during grinding cement the nut to the liner but do not cement the bolt to the liner or the bolt to the nut. The head of a conventional liner bolt is located within the mill and its conventional nut is located exterior of the mill, whereas the re-usable bolt (17) has its head exterior of the mill and its nut (23) interior of the mill. Methods of assembly and dis-assembly of the bolt (17) and nut (23) are also disclosed.

Abstract: A liner bolt (1) for securing a liner to a mill, the liner bolt (1) comprising a head (3) and a shank (4) extending therefrom, the shank (4) having an external thread thereon, and having a bore (5) therein extending from its free end. A removal pin (2) is adapted to be inserted into bore (5) when liner bolt (1) is to be removed from the mill. Removal pin (2) is adapted to be struck by a moil (14).

Abstract: A sand wheel seal for a grinding mill, which in use is internally disposed within said mill. Preferably the sand wheel seal is integrally formed with a mill throat liner wheel and may be releasably secured to a feed end of said mill. The grinding mill may be any one of a Sag, Ag, Ball or Rod mill.

Abstract: A liner bolt (1) for securing a liner to a mill, the liner bolt (1) comprising a head (3) and a shank (4) extending therefrom, the shank (4) having an external thread thereon, and having a bore (5) therein extending from its free end. A removal pin (2) is adapted to be inserted into bore (5) when liner bolt (1) is to be removed from the mill. Removal pin (2) is adapted to be struck by a moil (14).

Abstract: A sand wheel seal for a grinding mill, which in use is internally disposed within said mill. Preferably the sand wheel seal is integrally formed with a mill throat liner wheel and may be releasably secured to a feed end of said mill. The grinding mill may be any one of a Sag, Ag, Ball or Rod mill.

Abstract: A liner bolt (1) for securing a liner to a mill, the liner bolt (1) comprising a head (3) and a shank (4) extending therefrom, the shank (4) having an external thread thereon, and having a bore (5) therein extending from its free end. A removal pin (2) is adapted to be inserted into bore (5) when liner bolt (1) is to be removed from the mill. Removal pin (2) is adapted to be struck by a moil (14).

Abstract: A slurry pump includes a power frame as well as a wet end, and the wet end comprises a casing, an impeller and wear ring in the casing, a stub shaft connected to the impeller, a sleeve assembly for the stub shaft and an adapter for adjusting the wet end to the power frame. The wet end can be attached to and detached from the power frame as a module.